594 files changed, 13991 insertions, 11028 deletions
diff --git a/.gitignore b/.gitignore
index 7343e722d5..9f1e522803 100644
--- a/.gitignore
+++ b/.gitignore
@@ -111,3 +111,5 @@ qa/pull-tester/test.*/*
 !src/leveldb*/Makefile
 
 /doc/doxygen/
+
+libbitcoinconsensus.pc
diff --git a/.travis.yml b/.travis.yml
index 1630c1d02a..3c995be9a5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,7 +33,7 @@ matrix:
     - compiler: ": 32-bit + dash"
       env: HOST=i686-pc-linux-gnu PACKAGES="g++-multilib bc" RUN_TESTS=true GOAL="install" BITCOIN_CONFIG="--enable-glibc-back-compat" USE_SHELL="/bin/dash"
     - compiler: ": Cross-Mac"
-      env: HOST=x86_64-apple-darwin11 PACKAGES="gcc-multilib g++-multilib cmake libcap-dev libz-dev libbz2-dev" OSX_SDK=10.7 GOAL="deploy"
+      env: HOST=x86_64-apple-darwin11 PACKAGES="cmake libcap-dev libz-dev libbz2-dev" OSX_SDK=10.9 GOAL="deploy"
     - compiler: ": Win64"
       env: HOST=x86_64-w64-mingw32 PACKAGES="nsis gcc-mingw-w64-x86-64 g++-mingw-w64-x86-64 binutils-mingw-w64-x86-64 mingw-w64-dev wine bc" RUN_TESTS=true GOAL="deploy" BITCOIN_CONFIG="--enable-gui" MAKEJOBS="-j2"
     - compiler: ": Win32"
diff --git a/COPYING b/COPYING
index 6219bd75a6..9fd3266622 100644
--- a/COPYING
+++ b/COPYING
@@ -1,4 +1,4 @@
-Copyright (c) 2009-2014 Bitcoin Developers
+Copyright (c) 2009-2015 Bitcoin Developers
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/Makefile.am b/Makefile.am
index b51f477b78..c59648fd02 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -4,6 +4,11 @@ SUBDIRS = src
 
 GZIP_ENV="-9n"
 
+if BUILD_BITCOIN_LIBS
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = libbitcoinconsensus.pc
+endif
+
 BITCOIND_BIN=$(top_builddir)/src/bitcoind$(EXEEXT)
 BITCOIN_QT_BIN=$(top_builddir)/src/qt/bitcoin-qt$(EXEEXT)
 BITCOIN_CLI_BIN=$(top_builddir)/src/bitcoin-cli$(EXEEXT)
@@ -11,6 +16,7 @@ BITCOIN_WIN_INSTALLER=$(PACKAGE)-$(PACKAGE_VERSION)-win$(WINDOWS_BITS)-setup$(EX
 
 OSX_APP=Bitcoin-Qt.app
 OSX_DMG=Bitcoin-Qt.dmg
+OSX_BACKGROUND_IMAGE=background.tiff
 OSX_DEPLOY_SCRIPT=$(top_srcdir)/contrib/macdeploy/macdeployqtplus
 OSX_FANCY_PLIST=$(top_srcdir)/contrib/macdeploy/fancy.plist
 OSX_INSTALLER_ICONS=$(top_srcdir)/src/qt/res/icons/bitcoin.icns
@@ -25,7 +31,7 @@ WINDOWS_PACKAGING = $(top_srcdir)/share/pixmaps/bitcoin.ico \
   $(top_srcdir)/doc/README_windows.txt
 
 OSX_PACKAGING = $(OSX_DEPLOY_SCRIPT) $(OSX_FANCY_PLIST) $(OSX_INSTALLER_ICONS) \
-  $(top_srcdir)/contrib/macdeploy/background.png \
+  $(top_srcdir)/contrib/macdeploy/$(OSX_BACKGROUND_IMAGE) \
   $(top_srcdir)/contrib/macdeploy/DS_Store \
   $(top_srcdir)/contrib/macdeploy/detached-sig-apply.sh \
   $(top_srcdir)/contrib/macdeploy/detached-sig-create.sh
@@ -90,7 +96,7 @@ $(OSX_DMG): $(OSX_APP_BUILT) $(OSX_PACKAGING)
 deploydir: $(OSX_DMG)
 else
 APP_DIST_DIR=$(top_builddir)/dist
-APP_DIST_EXTRAS=$(APP_DIST_DIR)/.background/background.png $(APP_DIST_DIR)/.DS_Store $(APP_DIST_DIR)/Applications
+APP_DIST_EXTRAS=$(APP_DIST_DIR)/.background/$(OSX_BACKGROUND_IMAGE) $(APP_DIST_DIR)/.DS_Store $(APP_DIST_DIR)/Applications
 
 $(APP_DIST_DIR)/Applications:
 	@rm -f $@
@@ -101,11 +107,11 @@ $(APP_DIST_EXTRAS): $(APP_DIST_DIR)/$(OSX_APP)/Contents/MacOS/Bitcoin-Qt
 $(OSX_DMG): $(APP_DIST_EXTRAS)
 	$(GENISOIMAGE) -no-cache-inodes -D -l -probe -V "Bitcoin-Qt" -no-pad -r -apple -o $@ dist
 
-$(APP_DIST_DIR)/.background/background.png:
+$(APP_DIST_DIR)/.background/$(OSX_BACKGROUND_IMAGE): contrib/macdeploy/$(OSX_BACKGROUND_IMAGE)
 	$(MKDIR_P) $(@D)
-	$(INSTALL) $(top_srcdir)/contrib/macdeploy/background.png $@
-$(APP_DIST_DIR)/.DS_Store:
-	$(INSTALL) $(top_srcdir)/contrib/macdeploy/DS_Store $@
+	$(INSTALL) $< $@
+$(APP_DIST_DIR)/.DS_Store: contrib/macdeploy/DS_Store
+	$(INSTALL) $< $@
 
 $(APP_DIST_DIR)/$(OSX_APP)/Contents/MacOS/Bitcoin-Qt: $(OSX_APP_BUILT) $(OSX_PACKAGING)
 	INSTALLNAMETOOL=$(INSTALLNAMETOOL)  OTOOL=$(OTOOL) STRIP=$(STRIP) $(OSX_DEPLOY_SCRIPT) $(OSX_APP) -translations-dir=$(QT_TRANSLATION_DIR) -add-qt-tr $(OSX_QT_TRANSLATIONS) -verbose 2
diff --git a/README.md b/README.md
index cf650fe543..67c5ed5b41 100644
--- a/README.md
+++ b/README.md
@@ -5,8 +5,6 @@ Bitcoin Core integration/staging tree
 
 https://www.bitcoin.org
 
-Copyright (c) 2009-2014 Bitcoin Core Developers
-
 What is Bitcoin?
 ----------------
 
@@ -40,7 +38,7 @@ submitter will be asked to start a discussion (if they haven't already) on the
 
 The patch will be accepted if there is broad consensus that it is a good thing.
 Developers should expect to rework and resubmit patches if the code doesn't
-match the project's coding conventions (see [doc/coding.md](doc/coding.md)) or are
+match the project's coding conventions (see [doc/developer-notes.md](doc/developer-notes.md)) or are
 controversial.
 
 The `master` branch is regularly built and tested, but is not guaranteed to be
@@ -85,38 +83,3 @@ Translations are periodically pulled from Transifex and merged into the git repo
 pull from Transifex would automatically overwrite them again.
 
 Translators should also subscribe to the [mailing list](https://groups.google.com/forum/#!forum/bitcoin-translators).
-
-Development tips and tricks
----------------------------
-
-**compiling for debugging**
-
-Run configure with the --enable-debug option, then make. Or run configure with
-CXXFLAGS="-g -ggdb -O0" or whatever debug flags you need.
-
-**debug.log**
-
-If the code is behaving strangely, take a look in the debug.log file in the data directory;
-error and debugging messages are written there.
-
-The -debug=... command-line option controls debugging; running with just -debug will turn
-on all categories (and give you a very large debug.log file).
-
-The Qt code routes qDebug() output to debug.log under category "qt": run with -debug=qt
-to see it.
-
-**testnet and regtest modes**
-
-Run with the -testnet option to run with "play bitcoins" on the test network, if you
-are testing multi-machine code that needs to operate across the internet.
-
-If you are testing something that can run on one machine, run with the -regtest option.
-In regression test mode, blocks can be created on-demand; see qa/rpc-tests/ for tests
-that run in -regtest mode.
-
-**DEBUG_LOCKORDER**
-
-Bitcoin Core is a multithreaded application, and deadlocks or other multithreading bugs
-can be very difficult to track down. Compiling with -DDEBUG_LOCKORDER (configure
-CXXFLAGS="-DDEBUG_LOCKORDER -g") inserts run-time checks to keep track of which locks
-are held, and adds warnings to the debug.log file if inconsistencies are detected.
diff --git a/build-aux/m4/bitcoin_find_bdb48.m4 b/build-aux/m4/bitcoin_find_bdb48.m4
index f3b14461eb..0bf558d25b 100644
--- a/build-aux/m4/bitcoin_find_bdb48.m4
+++ b/build-aux/m4/bitcoin_find_bdb48.m4
@@ -38,7 +38,7 @@ AC_DEFUN([BITCOIN_FIND_BDB48],[
   done
   if test "x$bdbpath" = "xX"; then
     AC_MSG_RESULT([no])
-    AC_MSG_ERROR(libdb_cxx headers missing)
+    AC_MSG_ERROR([libdb_cxx headers missing, Bitcoin Core requires this library for wallet functionality (--disable-wallet to disable wallet functionality)])
   elif test "x$bdb48path" = "xX"; then
     BITCOIN_SUBDIR_TO_INCLUDE(BDB_CPPFLAGS,[${bdbpath}],db_cxx)
     AC_ARG_WITH([incompatible-bdb],[AS_HELP_STRING([--with-incompatible-bdb], [allow using a bdb version other than 4.8])],[
diff --git a/configure.ac b/configure.ac
index 9814197af3..85e3d1d669 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,11 +1,11 @@
 dnl require autoconf 2.60 (AS_ECHO/AS_ECHO_N)
 AC_PREREQ([2.60])
 define(_CLIENT_VERSION_MAJOR, 0)
-define(_CLIENT_VERSION_MINOR, 9)
+define(_CLIENT_VERSION_MINOR, 10)
 define(_CLIENT_VERSION_REVISION, 99)
 define(_CLIENT_VERSION_BUILD, 0)
 define(_CLIENT_VERSION_IS_RELEASE, false)
-define(_COPYRIGHT_YEAR, 2014)
+define(_COPYRIGHT_YEAR, 2015)
 AC_INIT([Bitcoin Core],[_CLIENT_VERSION_MAJOR._CLIENT_VERSION_MINOR._CLIENT_VERSION_REVISION],[info@bitcoin.org],[bitcoin])
 AC_CONFIG_SRCDIR([src/main.cpp])
 AC_CONFIG_HEADERS([src/config/bitcoin-config.h])
@@ -64,13 +64,6 @@ AC_PATH_PROG(CCACHE,ccache)
 AC_PATH_PROG(XGETTEXT,xgettext)
 AC_PATH_PROG(HEXDUMP,hexdump)
 
-# This m4 will only be used if a system copy cannot be found. This is helpful
-# on systems where autotools are installed but the pkg-config macros are not in
-# a default location. It is currently used for building on OSX where autotools
-# are preinstalled but pkg-config comes from macports or homebrew. It should
-# probably be removed when building on <= 10.6 is no longer supported.
-m4_include([pkg.m4])
-
 dnl pkg-config check.
 PKG_PROG_PKG_CONFIG
 
@@ -171,6 +164,24 @@ if test "x$CXXFLAGS_overridden" = "xno"; then
 fi
 CPPFLAGS="$CPPFLAGS -DBOOST_SPIRIT_THREADSAFE -DHAVE_BUILD_INFO -D__STDC_FORMAT_MACROS"
 
+AC_ARG_WITH([utils],
+  [AS_HELP_STRING([--with-utils],
+  [build bitcoin-cli bitcoin-tx (default=yes)])],
+  [build_bitcoin_utils=$withval],
+  [build_bitcoin_utils=yes])
+
+AC_ARG_WITH([libs],
+  [AS_HELP_STRING([--with-libs],
+  [build libraries (default=yes)])],
+  [build_bitcoin_libs=$withval],
+  [build_bitcoin_libs=yes])
+
+AC_ARG_WITH([daemon],
+  [AS_HELP_STRING([--with-daemon],
+  [build bitcoind daemon (default=yes)])],
+  [build_bitcoind=$withval],
+  [build_bitcoind=yes])
+
 AC_LANG_PUSH([C++])
 
 use_pkgconfig=yes
@@ -244,8 +255,12 @@ case $host in
        AC_CHECK_PROG([PORT],port, port)
        if test x$PORT = xport; then
          dnl add default macports paths
-         CPPFLAGS="$CPPFLAGS -isystem /opt/local/include -I/opt/local/include/db48"
-         LIBS="$LIBS -L/opt/local/lib -L/opt/local/lib/db48"
+         CPPFLAGS="$CPPFLAGS -isystem /opt/local/include"
+         LIBS="$LIBS -L/opt/local/lib"
+         if test -d /opt/local/include/db48; then
+           CPPFLAGS="$CPPFLAGS -I/opt/local/include/db48"
+           LIBS="$LIBS -L/opt/local/lib/db48"
+         fi
        fi
 
        AC_CHECK_PROG([BREW],brew, brew)
@@ -496,6 +511,19 @@ if test x$use_upnp != xno; then
   )
 fi
 
+BITCOIN_QT_INIT
+
+dnl sets $bitcoin_enable_qt, $bitcoin_enable_qt_test, $bitcoin_enable_qt_dbus
+BITCOIN_QT_CONFIGURE([$use_pkgconfig], [qt4])
+
+if test x$build_bitcoin_utils$build_bitcoind$bitcoin_enable_qt$use_tests = xnononono; then
+    use_boost=no
+else
+    use_boost=yes
+fi
+
+if test x$use_boost = xyes; then
+
 dnl Check for boost libs
 AX_BOOST_BASE
 AX_BOOST_SYSTEM
@@ -533,6 +561,10 @@ if test x$use_reduce_exports != xno; then
   CPPFLAGS="$TEMP_CPPFLAGS"
 fi
 
+elif test x$use_reduce_exports = xauto; then
+    use_reduce_exports=yes
+fi
+
 if test x$use_reduce_exports != xno; then
     CXXFLAGS="$CXXFLAGS $RE_CXXFLAGS"
     AX_CHECK_LINK_FLAG([[-Wl,--exclude-libs,ALL]], [RELDFLAGS="-Wl,--exclude-libs,ALL"])
@@ -545,6 +577,8 @@ if test x$use_tests = xyes; then
   fi
 
 
+  if test x$use_boost = xyes; then
+
   AX_BOOST_UNIT_TEST_FRAMEWORK
 
   dnl Determine if -DBOOST_TEST_DYN_LINK is needed
@@ -564,8 +598,12 @@ if test x$use_tests = xyes; then
     [AC_MSG_RESULT(no)])
   LIBS="$TEMP_LIBS"
   CPPFLAGS="$TEMP_CPPFLAGS"
+
+  fi
 fi
 
+if test x$use_boost = xyes; then
+
 BOOST_LIBS="$BOOST_LDFLAGS $BOOST_SYSTEM_LIB $BOOST_FILESYSTEM_LIB $BOOST_PROGRAM_OPTIONS_LIB $BOOST_THREAD_LIB"
 
 dnl Boost >= 1.50 uses sleep_for rather than the now-deprecated sleep, however
@@ -622,25 +660,7 @@ if test x$boost_sleep != xyes; then
   AC_MSG_ERROR(No working boost sleep implementation found.)
 fi
 
-AC_ARG_WITH([utils],
-  [AS_HELP_STRING([--with-utils],
-  [build bitcoin-cli bitcoin-tx (default=yes)])],
-  [build_bitcoin_utils=$withval],
-  [build_bitcoin_utils=yes])
-
-AC_ARG_WITH([libs],
-  [AS_HELP_STRING([--with-libs],
-  [build libraries (default=yes)])],
-  [build_bitcoin_libs=$withval],
-  [build_bitcoin_libs=yes])
-
-AC_ARG_WITH([daemon],
-  [AS_HELP_STRING([--with-daemon],
-  [build bitcoind daemon (default=yes)])],
-  [build_bitcoind=$withval],
-  [build_bitcoind=yes])
-
-BITCOIN_QT_INIT
+fi
 
 if test x$use_pkgconfig = xyes; then
 
@@ -674,6 +694,14 @@ else
   fi
 fi
 
+CFLAGS_TEMP="$CFLAGS"
+LIBS_TEMP="$LIBS"
+CFLAGS="$CFLAGS $SSL_CFLAGS $CRYPTO_CFLAGS"
+LIBS="$LIBS $SSL_LIBS $CRYPTO_LIBS"
+AC_CHECK_HEADER([openssl/ec.h],, AC_MSG_ERROR(OpenSSL ec header missing),)
+CFLAGS="$CFLAGS_TEMP"
+LIBS="$LIBS_TEMP"
+
 BITCOIN_QT_PATH_PROGS([PROTOC], [protoc],$protoc_bin_path)
 
 AC_MSG_CHECKING([whether to build bitcoind])
@@ -688,12 +716,10 @@ AC_MSG_CHECKING([whether to build libraries])
 AM_CONDITIONAL([BUILD_BITCOIN_LIBS], [test x$build_bitcoin_libs = xyes])
 if test x$build_bitcoin_libs = xyes; then
   AC_DEFINE(HAVE_CONSENSUS_LIB, 1, [Define this symbol if the consensus lib has been built])
+  AC_CONFIG_FILES([libbitcoinconsensus.pc:libbitcoinconsensus.pc.in])
 fi
 AC_MSG_RESULT($build_bitcoin_libs)
 
-dnl sets $bitcoin_enable_qt, $bitcoin_enable_qt_test, $bitcoin_enable_qt_dbus
-BITCOIN_QT_CONFIGURE([$use_pkgconfig], [qt4])
-
 AC_LANG_POP
 
 if test "x$use_ccache" != "xno"; then
@@ -807,7 +833,7 @@ else
   AC_MSG_RESULT([no])
 fi
 
-if test x$build_bitcoin_utils$build_bitcoin_libs$build_bitcoind$bitcoin_enable_qt$use_tests = xnononono; then
+if test x$build_bitcoin_utils$build_bitcoin_libs$build_bitcoind$bitcoin_enable_qt$use_tests = xnonononono; then
   AC_MSG_ERROR([No targets! Please specify at least one of: --with-utils --with-libs --with-daemon --with-gui or --enable-tests])
 fi
 
diff --git a/contrib/bitcoind.bash-completion b/contrib/bitcoind.bash-completion
index 37ece25899..3cc959c0a6 100644
--- a/contrib/bitcoind.bash-completion
+++ b/contrib/bitcoind.bash-completion
@@ -1,6 +1,6 @@
 # bash programmable completion for bitcoind(1) and bitcoin-cli(1)
 # Copyright (c) 2012,2014 Christian von Roques <roques@mti.ag>
-# Distributed under the MIT/X11 software license, see the accompanying
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 have bitcoind && {
diff --git a/contrib/debian/manpages/bitcoind.1 b/contrib/debian/manpages/bitcoind.1
index a1b17d6077..c225b9f3e9 100644
--- a/contrib/debian/manpages/bitcoind.1
+++ b/contrib/debian/manpages/bitcoind.1
@@ -85,19 +85,19 @@ This help message
 Safely copies *wallet.dat* to 'destination', which can be a directory or a path with filename.
 .TP
 \fBgetaccount 'bitcoinaddress'\fR
-Returns the account associated with the given address.
+DEPRECATED. Returns the account associated with the given address.
 .TP
 \fBsetaccount 'bitcoinaddress' ['account']\fR
-Sets the ['account'] associated with the given address. ['account'] may be omitted to remove an address from ['account'].
+DEPRECATED. Sets the ['account'] associated with the given address. ['account'] may be omitted to remove an address from ['account'].
 .TP
 \fBgetaccountaddress 'account'\fR
-Returns a new bitcoin address for 'account'.
+DEPRECATED. Returns a new bitcoin address for 'account'.
 .TP
 \fBgetaddressesbyaccount 'account'\fR
-Returns the list of addresses associated with the given 'account'.
+DEPRECATED. Returns the list of addresses associated with the given 'account'.
 .TP
 \fBgetbalance 'account'\fR
-Returns the server's available balance, or the balance for 'account'.
+Returns the server's available balance, or the balance for 'account' (accounts are deprecated).
 .TP
 \fBgetblockcount\fR
 Returns the number of blocks in the longest block chain.
@@ -124,10 +124,10 @@ Returns a recent hashes per second performance measurement while generating.
 Returns an object containing server information.
 .TP
 \fBgetnewaddress 'account'\fR
-Returns a new bitcoin address for receiving payments. If 'account' is specified (recommended), it is added to the address book so payments received with the address will be credited to 'account'.
+Returns a new bitcoin address for receiving payments. If 'account' is specified (deprecated), it is added to the address book so payments received with the address will be credited to 'account'.
 .TP
 \fBgetreceivedbyaccount 'account' ['minconf=1']\fR
-Returns the total amount received by addresses associated with 'account' in transactions with at least ['minconf'] confirmations.
+DEPRECATED. Returns the total amount received by addresses associated with 'account' in transactions with at least ['minconf'] confirmations.
 .TP
 \fBgetreceivedbyaddress 'bitcoinaddress' ['minconf=1']\fR
 Returns the total amount received by 'bitcoinaddress' in transactions with at least ['minconf'] confirmations.
@@ -147,13 +147,13 @@ If 'data' is specified, tries to solve the block and returns true if it was succ
 List commands, or get help for a command.
 .TP
 \fBlistaccounts ['minconf=1']\fR
-List accounts and their current balances.
+DEPRECATED. List accounts and their current balances.
      *note: requires bitcoin 0.3.20 or later.
 .TP
 \fBlistreceivedbyaccount ['minconf=1'] ['includeempty=false']\fR
 ['minconf'] is the minimum number of confirmations before payments are included. ['includeempty'] whether to include addresses that haven't received any payments. Returns an array of objects containing:
 
-    "account"       : the account of the receiving address.
+    "account"       : DEPRECATED. the account of the receiving address.
     "amount"        : total amount received by the address.
     "confirmations" : number of confirmations of the most recent transaction included.
 .TP
@@ -161,7 +161,7 @@ List accounts and their current balances.
 ['minconf'] is the minimum number of confirmations before payments are included. ['includeempty'] whether to include addresses that haven't received any payments. Returns an array of objects containing:
 
     "address"       : receiving address.
-    "account"       : the account of the receiving address.
+    "account"       : DEPRECATED. the account of the receiving address.
     "amount"        : total amount received by the address.
     "confirmations" : number of confirmations of the most recent transaction included.
 .TP
@@ -180,10 +180,10 @@ Returns a list of the last ['count'] transactions for 'account' \- for all accou
     *note: requires bitcoin 0.3.20 or later.
 .TP
 \fBmove <'fromaccount'> <'toaccount'> <'amount'> ['minconf=1'] ['comment']\fR
-Moves funds between accounts.
+DEPRECATED. Moves funds between accounts.
 .TP
 \fBsendfrom* <'account'> <'bitcoinaddress'> <'amount'> ['minconf=1'] ['comment'] ['comment-to']\fR
-Sends amount from account's balance to 'bitcoinaddress'. This method will fail if there is less than amount bitcoins with ['minconf'] confirmations in the account's balance (unless account is the empty-string-named default account; it behaves like the *sendtoaddress* method). Returns transaction ID on success.
+DEPRECATED. Sends amount from account's balance to 'bitcoinaddress'. This method will fail if there is less than amount bitcoins with ['minconf'] confirmations in the account's balance (unless account is the empty-string-named default account; it behaves like the *sendtoaddress* method). Returns transaction ID on success.
 .TP     
 \fBsendtoaddress 'bitcoinaddress' 'amount' ['comment'] ['comment-to']\fR
 Sends amount from the server's available balance to 'bitcoinaddress'. amount is a real and is rounded to the nearest 0.01. Returns transaction id on success.
diff --git a/contrib/devtools/README.md b/contrib/devtools/README.md
index a57b4e561e..40495cce8b 100644
--- a/contrib/devtools/README.md
+++ b/contrib/devtools/README.md
@@ -44,10 +44,10 @@ If you run this script from src/ it will automatically update the year on the co
 .cpp and .h files if these have a git commit from the current year.
 
 For example a file changed in 2014 (with 2014 being the current year):
-```// Copyright (c) 2009-2013 The Bitcoin developers```
+```// Copyright (c) 2009-2013 The Bitcoin Core developers```
 
 would be changed to:
-```// Copyright (c) 2009-2014 The Bitcoin developers```
+```// Copyright (c) 2009-2014 The Bitcoin Core developers```
 
 symbol-check.py
 ==================
diff --git a/contrib/devtools/fix-copyright-headers.py b/contrib/devtools/fix-copyright-headers.py
index 52fdc99144..5e84952548 100755
--- a/contrib/devtools/fix-copyright-headers.py
+++ b/contrib/devtools/fix-copyright-headers.py
@@ -7,11 +7,11 @@ a perl regex one liner.
 
 For example: if it finds something like this and we're in 2014
 
-// Copyright (c) 2009-2013 The Bitcoin developers
+// Copyright (c) 2009-2013 The Bitcoin Core developers
 
 it will change it to
 
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 
 It will do this for all the files in the folder and its children.
 
diff --git a/contrib/devtools/github-merge.sh b/contrib/devtools/github-merge.sh
index 3217a06195..ec7a1f4c4b 100755
--- a/contrib/devtools/github-merge.sh
+++ b/contrib/devtools/github-merge.sh
@@ -136,6 +136,9 @@ else
   echo "Dropping you on a shell so you can try building/testing the merged source." >&2
   echo "Run 'git diff HEAD~' to show the changes being merged." >&2
   echo "Type 'exit' when done." >&2
+  if [[ -f /etc/debian_version ]]; then # Show pull number in prompt on Debian default prompt
+      export debian_chroot="$PULL"
+  fi
   bash -i
   read -p "Press 'm' to accept the merge. " -n 1 -r >&2
   echo
@@ -153,12 +156,17 @@ read -p "Press 's' to sign off on the merge. " -n 1 -r >&2
 echo
 if [[ "d$REPLY" =~ ^d[Ss]$ ]]; then
   if [[ "$(git config --get user.signingkey)" == "" ]]; then
-    echo "WARNING: No GPG signing key set, not signing. Set one using:" >&2
+    echo "ERROR: No GPG signing key set, not signing. Set one using:" >&2
     echo "git config --global user.signingkey <key>" >&2
-    git commit -q --signoff --amend --no-edit
+    cleanup
+    exit 1
   else
     git commit -q --gpg-sign --amend --no-edit
   fi
+else
+  echo "Not signing off on merge, exiting."
+  cleanup
+  exit 1
 fi
 
 # Clean up temporary branches, and put the result in $BRANCH.
diff --git a/contrib/devtools/optimize-pngs.py b/contrib/devtools/optimize-pngs.py
new file mode 100755
index 0000000000..38aaa00f31
--- /dev/null
+++ b/contrib/devtools/optimize-pngs.py
@@ -0,0 +1,73 @@
+#!/usr/bin/env python
+
+import os
+import sys
+import subprocess
+import hashlib
+from PIL import Image
+
+def file_hash(filename):
+    '''Return hash of raw file contents'''
+    with open(filename, 'rb') as f:
+        return hashlib.sha256(f.read()).hexdigest()
+
+def content_hash(filename):
+    '''Return hash of RGBA contents of image'''
+    i = Image.open(filename)
+    i = i.convert('RGBA')
+    data = i.tostring()
+    return hashlib.sha256(data).hexdigest()
+
+#optimize png, remove various color profiles, remove ancillary chunks (alla) and text chunks (text)
+#pngcrush -brute -ow -rem gAMA -rem cHRM -rem iCCP -rem sRGB -rem alla -rem text
+
+pngcrush = 'pngcrush'
+git = 'git'
+folders = ["src/qt/res/movies", "src/qt/res/icons", "src/qt/res/images"]
+basePath = subprocess.check_output([git, 'rev-parse', '--show-toplevel']).rstrip('\n')
+totalSaveBytes = 0
+
+outputArray = []
+for folder in folders:
+    absFolder=os.path.join(basePath, folder)
+    for file in os.listdir(absFolder):
+        extension = os.path.splitext(file)[1]
+        if extension.lower() == '.png':
+            print("optimizing "+file+"..."),
+            file_path = os.path.join(absFolder, file)
+            fileMetaMap = {'file' : file, 'osize': os.path.getsize(file_path), 'sha256Old' : file_hash(file_path)};
+            fileMetaMap['contentHashPre'] = content_hash(file_path)
+        
+            pngCrushOutput = ""
+            try:
+                pngCrushOutput = subprocess.check_output(
+                        [pngcrush, "-brute", "-ow", "-rem", "gAMA", "-rem", "cHRM", "-rem", "iCCP", "-rem", "sRGB", "-rem", "alla", "-rem", "text", file_path],
+                        stderr=subprocess.STDOUT).rstrip('\n')
+            except:
+                print "pngcrush is not installed, aborting..."
+                sys.exit(0)
+        
+            #verify
+            if "Not a PNG file" in subprocess.check_output([pngcrush, "-n", "-v", file_path], stderr=subprocess.STDOUT):
+                print "PNG file "+file+" is corrupted after crushing, check out pngcursh version"
+                sys.exit(1)
+            
+            fileMetaMap['sha256New'] = file_hash(file_path)
+            fileMetaMap['contentHashPost'] = content_hash(file_path)
+
+            if fileMetaMap['contentHashPre'] != fileMetaMap['contentHashPost']:
+                print "Image contents of PNG file "+file+" before and after crushing don't match"
+                sys.exit(1)
+
+            fileMetaMap['psize'] = os.path.getsize(file_path)
+            outputArray.append(fileMetaMap)
+            print("done\n"),
+
+print "summary:\n+++++++++++++++++"
+for fileDict in outputArray:
+    oldHash = fileDict['sha256Old']
+    newHash = fileDict['sha256New']
+    totalSaveBytes += fileDict['osize'] - fileDict['psize']
+    print fileDict['file']+"\n  size diff from: "+str(fileDict['osize'])+" to: "+str(fileDict['psize'])+"\n  old sha256: "+oldHash+"\n  new sha256: "+newHash+"\n"
+    
+print "completed. Total reduction: "+str(totalSaveBytes)+" bytes"
diff --git a/contrib/devtools/symbol-check.py b/contrib/devtools/symbol-check.py
index f3999f1c0b..fad891f800 100755
--- a/contrib/devtools/symbol-check.py
+++ b/contrib/devtools/symbol-check.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python
 # Copyright (c) 2014 Wladimir J. van der Laan
-# Distributed under the MIT/X11 software license, see the accompanying
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 '''
 A script to check that the (Linux) executables produced by gitian only contain
diff --git a/contrib/devtools/update-translations.py b/contrib/devtools/update-translations.py
index 0be632069a..f955e4a1f2 100755
--- a/contrib/devtools/update-translations.py
+++ b/contrib/devtools/update-translations.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python
 # Copyright (c) 2014 Wladimir J. van der Laan
-# Distributed under the MIT/X11 software license, see the accompanying
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 '''
 Run this script from the root of the repository to update all translations from
diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml
index bba2104edb..28bd9211ac 100644
--- a/contrib/gitian-descriptors/gitian-linux.yml
+++ b/contrib/gitian-descriptors/gitian-linux.yml
@@ -79,7 +79,7 @@ script: |
   mkdir -p temp
   pushd temp
   tar xf ../$SOURCEDIST
-  find bitcoin-* | sort | tar --no-recursion -c -T - | gzip -9n > ../$SOURCEDIST
+  find bitcoin-* | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ../$SOURCEDIST
   popd
 
   ORIGPATH="$PATH"
@@ -99,7 +99,7 @@ script: |
     find . -name "lib*.la" -delete
     find . -name "lib*.a" -delete
     rm -rf ${DISTNAME}/lib/pkgconfig
-    find . | sort | tar --no-recursion -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-${i}.tar.gz
+    find . | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-${i}.tar.gz
     cd ../../
   done
   mkdir -p $OUTDIR/src
diff --git a/contrib/gitian-descriptors/gitian-osx-signer.yml b/contrib/gitian-descriptors/gitian-osx-signer.yml
index db9b4af93d..1792f9de3f 100644
--- a/contrib/gitian-descriptors/gitian-osx-signer.yml
+++ b/contrib/gitian-descriptors/gitian-osx-signer.yml
@@ -10,7 +10,7 @@ packages:
 reference_datetime: "2013-06-01 00:00:00"
 remotes: []
 files:
-- "bitcoin-0.9.99-osx-unsigned.tar.gz"
+- "bitcoin-osx-unsigned.tar.gz"
 - "signature.tar.gz"
 script: |
   WRAP_DIR=$HOME/wrapped
@@ -28,8 +28,8 @@ script: |
     chmod +x ${WRAP_DIR}/${prog}
   done
 
-  UNSIGNED=`echo bitcoin-*.tar.gz`
-  SIGNED=`echo ${UNSIGNED} | sed 's/.tar.*//' | sed 's/-unsigned//'`.dmg
+  UNSIGNED=bitcoin-osx-unsigned.tar.gz
+  SIGNED=bitcoin-osx-signed.dmg
 
   tar -xf ${UNSIGNED}
   ./detached-sig-apply.sh ${UNSIGNED} signature.tar.gz
diff --git a/contrib/gitian-descriptors/gitian-osx.yml b/contrib/gitian-descriptors/gitian-osx.yml
index eb6df2096e..3ca42248d4 100644
--- a/contrib/gitian-descriptors/gitian-osx.yml
+++ b/contrib/gitian-descriptors/gitian-osx.yml
@@ -6,7 +6,7 @@ suites:
 architectures:
 - "amd64"
 packages: 
-- "g++-multilib"
+- "g++"
 - "git-core"
 - "pkg-config"
 - "autoconf2.13"
@@ -23,7 +23,7 @@ remotes:
 - "url": "https://github.com/bitcoin/bitcoin.git"
   "dir": "bitcoin"
 files:
-- "MacOSX10.7.sdk.tar.gz"
+- "MacOSX10.9.sdk.tar.gz"
 script: |
   WRAP_DIR=$HOME/wrapped
   HOSTS="x86_64-apple-darwin11"
@@ -72,7 +72,7 @@ script: |
   BASEPREFIX=`pwd`/depends
 
   mkdir -p ${BASEPREFIX}/SDKs
-  tar -C ${BASEPREFIX}/SDKs -xf ${BUILD_DIR}/MacOSX10.7.sdk.tar.gz
+  tar -C ${BASEPREFIX}/SDKs -xf ${BUILD_DIR}/MacOSX10.9.sdk.tar.gz
 
   # Build dependencies for each host
   for i in $HOSTS; do
@@ -90,7 +90,7 @@ script: |
   mkdir -p temp
   pushd temp
   tar xf ../$SOURCEDIST
-  find bitcoin-* | sort | tar --no-recursion -c -T - | gzip -9n > ../$SOURCEDIST
+  find bitcoin-* | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ../$SOURCEDIST
   popd
 
   ORIGPATH="$PATH"
@@ -116,7 +116,7 @@ script: |
     cp ${BASEPREFIX}/${i}/native/bin/${i}-pagestuff unsigned-app-${i}/pagestuff
     mv dist unsigned-app-${i}
     pushd unsigned-app-${i}
-    find . | sort | tar --no-recursion -czf ${OUTDIR}/${DISTNAME}-osx-unsigned.tar.gz -T -
+    find . | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-osx-unsigned.tar.gz
     popd
 
     make deploy
@@ -126,7 +126,7 @@ script: |
     find . -name "lib*.la" -delete
     find . -name "lib*.a" -delete
     rm -rf ${DISTNAME}/lib/pkgconfig
-    find . | sort | tar --no-recursion -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-${i}.tar.gz
+    find . | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-${i}.tar.gz
     cd ../../
   done
   mkdir -p $OUTDIR/src
diff --git a/contrib/gitian-descriptors/gitian-win.yml b/contrib/gitian-descriptors/gitian-win.yml
index 97c823cde6..4baa08c88d 100644
--- a/contrib/gitian-descriptors/gitian-win.yml
+++ b/contrib/gitian-descriptors/gitian-win.yml
@@ -83,7 +83,7 @@ script: |
   mkdir -p temp
   pushd temp
   tar xf ../$SOURCEDIST
-  find bitcoin-* | sort | tar --no-recursion -c -T - | gzip -9n > ../$SOURCEDIST
+  find bitcoin-* | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ../$SOURCEDIST
   popd
 
   ORIGPATH="$PATH"
diff --git a/contrib/gitian-downloader/jonasschnelli.pgp b/contrib/gitian-downloader/jonasschnelli.pgp
new file mode 100644
index 0000000000..96140fe171
--- /dev/null
+++ b/contrib/gitian-downloader/jonasschnelli.pgp
diff --git a/contrib/linearize/linearize-data.py b/contrib/linearize/linearize-data.py
index 2dac3a614b..a3a1173b1f 100755
--- a/contrib/linearize/linearize-data.py
+++ b/contrib/linearize/linearize-data.py
@@ -2,8 +2,8 @@
 #
 # linearize-data.py: Construct a linear, no-fork version of the chain.
 #
-# Copyright (c) 2013-2014 The Bitcoin developers
-# Distributed under the MIT/X11 software license, see the accompanying
+# Copyright (c) 2013-2014 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #
 
@@ -148,7 +148,7 @@ class BlockDataCopier:
 				outFname = self.settings['output_file']
 			else:
 				outFname = "%s/blk%05d.dat" % (self.settings['output'], outFn)
-			print("Output file" + outFname)
+			print("Output file " + outFname)
 			self.outF = open(outFname, "wb")
 
 		self.outF.write(inhdr)
@@ -189,7 +189,7 @@ class BlockDataCopier:
 		while self.blkCountOut < len(self.blkindex):
 			if not self.inF:
 				fname = self.inFileName(self.inFn)
-				print("Input file" + fname)
+				print("Input file " + fname)
 				try:
 					self.inF = open(fname, "rb")
 				except IOError:
@@ -205,7 +205,7 @@ class BlockDataCopier:
 
 			inMagic = inhdr[:4]
 			if (inMagic != self.settings['netmagic']):
-				print("Invalid magic:" + inMagic)
+				print("Invalid magic: " + inMagic)
 				return
 			inLenLE = inhdr[4:]
 			su = struct.unpack("<I", inLenLE)
@@ -292,7 +292,7 @@ if __name__ == '__main__':
 	blkmap = mkblockmap(blkindex)
 
 	if not "000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f" in blkmap:
-		print("not found")
+		print("Genesis block not found in hashlist")
 	else:
 		BlockDataCopier(settings, blkindex, blkmap).run()
 
diff --git a/contrib/linearize/linearize-hashes.py b/contrib/linearize/linearize-hashes.py
index dc7f654049..854cf1f9ee 100755
--- a/contrib/linearize/linearize-hashes.py
+++ b/contrib/linearize/linearize-hashes.py
@@ -2,8 +2,8 @@
 #
 # linearize-hashes.py:  List blocks in a linear, no-fork version of the chain.
 #
-# Copyright (c) 2013-2014 The Bitcoin developers
-# Distributed under the MIT/X11 software license, see the accompanying
+# Copyright (c) 2013-2014 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 #
 
diff --git a/contrib/macdeploy/DS_Store b/contrib/macdeploy/DS_Store
index 7527dc671f..099960712a 100644
--- a/contrib/macdeploy/DS_Store
+++ b/contrib/macdeploy/DS_Store
diff --git a/contrib/macdeploy/background.png b/contrib/macdeploy/background.png
index fce12e3807..f88a2ae74b 100644
--- a/contrib/macdeploy/background.png
+++ b/contrib/macdeploy/background.png
diff --git a/contrib/macdeploy/background.psd b/contrib/macdeploy/background.psd
index 5889676f8e..fdc4f4ca4a 100644
--- a/contrib/macdeploy/background.psd
+++ b/contrib/macdeploy/background.psd
diff --git a/contrib/macdeploy/background.tiff b/contrib/macdeploy/background.tiff
new file mode 100644
index 0000000000..4b44ac672e
--- /dev/null
+++ b/contrib/macdeploy/background.tiff
diff --git a/contrib/macdeploy/background@2x.png b/contrib/macdeploy/background@2x.png
new file mode 100644
index 0000000000..4858183f75
--- /dev/null
+++ b/contrib/macdeploy/background@2x.png
diff --git a/contrib/macdeploy/fancy.plist b/contrib/macdeploy/fancy.plist
index e73b9b697e..ef277a7f14 100644
--- a/contrib/macdeploy/fancy.plist
+++ b/contrib/macdeploy/fancy.plist
@@ -10,7 +10,7 @@
 		<integer>620</integer>
 	</array>
 	<key>background_picture</key>
-	<string>background.png</string>
+	<string>background.tiff</string>
 	<key>icon_size</key>
 	<integer>96</integer>
 	<key>applications_symlink</key>
diff --git a/contrib/macdeploy/macdeployqtplus b/contrib/macdeploy/macdeployqtplus
index 541136001f..0eb6b2c84d 100755
--- a/contrib/macdeploy/macdeployqtplus
+++ b/contrib/macdeploy/macdeployqtplus
@@ -767,7 +767,7 @@ if config.dmg is not None:
         for path, dirs, files in os.walk("dist"):
             for file in files:
                 size += os.path.getsize(os.path.join(path, file))
-        size += int(size * 0.1)
+        size += int(size * 0.15)
         
         if verbose >= 3:
             print "Creating temp image for modification..."
@@ -791,7 +791,8 @@ if config.dmg is not None:
             print "+ Applying fancy settings +"
         
         if fancy.has_key("background_picture"):
-            bg_path = os.path.join(disk_root, os.path.basename(fancy["background_picture"]))
+            bg_path = os.path.join(disk_root, ".background", os.path.basename(fancy["background_picture"]))
+            os.mkdir(os.path.dirname(bg_path))
             if verbose >= 3:
                 print fancy["background_picture"], "->", bg_path
             shutil.copy2(fancy["background_picture"], bg_path)
@@ -849,8 +850,8 @@ if config.dmg is not None:
         if bg_path is not None:
             # Set background file, then call SetFile to make it invisible.
             # (note: making it invisible first makes set background picture fail)
-            bgscript = Template("""set background picture of theViewOptions to file "$bgpic"
-                   do shell script "SetFile -a V /Volumes/$disk/$bgpic" """)
+            bgscript = Template("""set background picture of theViewOptions to file ".background:$bgpic"
+                   do shell script "SetFile -a V /Volumes/$disk/.background/$bgpic" """)
             params["background_commands"] = bgscript.substitute({"bgpic" : os.path.basename(bg_path), "disk" : params["disk"]})
 
         s = appscript.substitute(params)
diff --git a/contrib/seeds/README.md b/contrib/seeds/README.md
index f9a0c277e2..bc88201f0f 100644
--- a/contrib/seeds/README.md
+++ b/contrib/seeds/README.md
@@ -1,11 +1,8 @@
 ### Seeds ###
 
-Utility to generate the pnSeed[] array that is compiled into the client
-(see [src/net.cpp](/src/net.cpp)).
+Utility to generate the seeds.txt list that is compiled into the client
+(see [src/chainparamsseeds.h](/src/chainparamsseeds.h) and [share/seeds](/share/seeds)).
 
-The 600 seeds compiled into the 0.8 release were created from sipa's DNS seed data, like this:
+The 512 seeds compiled into the 0.10 release were created from sipa's DNS seed data, like this:
 
-	curl -s http://bitcoin.sipa.be/seeds.txt | head -1000 | makeseeds.py
-
-The input to makeseeds.py is assumed to be approximately sorted from most-reliable to least-reliable,
-with IP:port first on each line (lines that don't match IPv4:port are ignored).
+	curl -s http://bitcoin.sipa.be/seeds.txt | makeseeds.py
diff --git a/contrib/seeds/makeseeds.py b/contrib/seeds/makeseeds.py
index 1d01fd7d20..b831395f2c 100755
--- a/contrib/seeds/makeseeds.py
+++ b/contrib/seeds/makeseeds.py
@@ -1,32 +1,118 @@
 #!/usr/bin/env python
 #
-# Generate pnSeed[] from Pieter's DNS seeder
+# Generate seeds.txt from Pieter's DNS seeder
 #
 
-NSEEDS=600
+NSEEDS=512
+
+MAX_SEEDS_PER_ASN=2
+
+MIN_BLOCKS = 337600
+
+# These are hosts that have been observed to be behaving strangely (e.g.
+# aggressively connecting to every node).
+SUSPICIOUS_HOSTS = set([
+    "130.211.129.106", "178.63.107.226",
+    "83.81.130.26", "88.198.17.7", "148.251.238.178", "176.9.46.6",
+    "54.173.72.127", "54.174.10.182", "54.183.64.54", "54.194.231.211",
+    "54.66.214.167", "54.66.220.137", "54.67.33.14", "54.77.251.214",
+    "54.94.195.96", "54.94.200.247"
+])
 
 import re
 import sys
-from subprocess import check_output
+import dns.resolver
+
+PATTERN_IPV4 = re.compile(r"^((\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})):8333$")
+PATTERN_AGENT = re.compile(r"^(\/Satoshi:0.8.6\/|\/Satoshi:0.9.(2|3)\/|\/Satoshi:0.10.\d{1,2}\/)$")
+
+def parseline(line):
+    sline = line.split()
+    if len(sline) < 11:
+       return None
+    # Match only IPv4
+    m = PATTERN_IPV4.match(sline[0])
+    if m is None:
+        return None
+    # Do IPv4 sanity check
+    ip = 0
+    for i in range(0,4):
+        if int(m.group(i+2)) < 0 or int(m.group(i+2)) > 255:
+            return None
+        ip = ip + (int(m.group(i+2)) << (8*(3-i)))
+    if ip == 0:
+        return None
+    # Skip bad results.
+    if sline[1] == 0:
+        return None
+    # Extract uptime %.
+    uptime30 = float(sline[7][:-1])
+    # Extract Unix timestamp of last success.
+    lastsuccess = int(sline[2])
+    # Extract protocol version.
+    version = int(sline[10])
+    # Extract user agent.
+    agent = sline[11][1:-1]
+    # Extract service flags.
+    service = int(sline[9], 16)
+    # Extract blocks.
+    blocks = int(sline[8])
+    # Construct result.
+    return {
+        'ip': m.group(1),
+        'ipnum': ip,
+        'uptime': uptime30,
+        'lastsuccess': lastsuccess,
+        'version': version,
+        'agent': agent,
+        'service': service,
+        'blocks': blocks,
+    }
+
+# Based on Greg Maxwell's seed_filter.py
+def filterbyasn(ips, max_per_asn, max_total):
+    result = []
+    asn_count = {}
+    for ip in ips:
+        if len(result) == max_total:
+            break
+        try:
+            asn = int([x.to_text() for x in dns.resolver.query('.'.join(reversed(ip['ip'].split('.'))) + '.origin.asn.cymru.com', 'TXT').response.answer][0].split('\"')[1].split(' ')[0])
+            if asn not in asn_count:
+                asn_count[asn] = 0
+            if asn_count[asn] == max_per_asn:
+                continue
+            asn_count[asn] += 1
+            result.append(ip)
+        except:
+            sys.stderr.write('ERR: Could not resolve ASN for "' + ip['ip'] + '"\n')
+    return result
 
 def main():
     lines = sys.stdin.readlines()
+    ips = [parseline(line) for line in lines]
+
+    # Skip entries with valid IPv4 address.
+    ips = [ip for ip in ips if ip is not None]
+    # Skip entries from suspicious hosts.
+    ips = [ip for ip in ips if ip['ip'] not in SUSPICIOUS_HOSTS]
+    # Enforce minimal number of blocks.
+    ips = [ip for ip in ips if ip['blocks'] >= MIN_BLOCKS]
+    # Require service bit 1.
+    ips = [ip for ip in ips if (ip['service'] & 1) == 1]
+    # Require at least 50% 30-day uptime.
+    ips = [ip for ip in ips if ip['uptime'] > 50]
+    # Require a known and recent user agent.
+    ips = [ip for ip in ips if PATTERN_AGENT.match(ip['agent'])]
+    # Sort by availability (and use last success as tie breaker)
+    ips.sort(key=lambda x: (x['uptime'], x['lastsuccess'], x['ip']), reverse=True)
+    # Look up ASNs and limit results, both per ASN and globally.
+    ips = filterbyasn(ips, MAX_SEEDS_PER_ASN, NSEEDS)
+    # Sort the results by IP address (for deterministic output).
+    ips.sort(key=lambda x: (x['ipnum']))
 
-    ips = []
-    pattern = re.compile(r"^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3}):8333")
-    for line in lines:
-        m = pattern.match(line)
-        if m is None:
-            continue
-        ip = 0
-        for i in range(0,4):
-            ip = ip + (int(m.group(i+1)) << (8*(i)))
-        if ip == 0:
-            continue
-        ips.append(ip)
-
-    for row in range(0, min(NSEEDS,len(ips)), 8):
-        print "    " + ", ".join([ "0x%08x"%i for i in ips[row:row+8] ]) + ","
+    for ip in ips:
+        print ip['ip']
 
 if __name__ == '__main__':
     main()
diff --git a/depends/Makefile b/depends/Makefile
index 5de0159714..e2ef7ee49b 100644
--- a/depends/Makefile
+++ b/depends/Makefile
@@ -31,6 +31,7 @@ endif
 
 base_build_dir=$(BASEDIR)/work/build
 base_staging_dir=$(BASEDIR)/work/staging
+base_download_dir=$(BASEDIR)/work/download
 canonical_host:=$(shell ./config.sub $(HOST))
 build:=$(shell ./config.sub $(BUILD))
 
@@ -122,5 +123,12 @@ $(host_prefix)/share/config.site : config.site.in $(host_prefix)/.stamp_$(final_
 	$(AT)touch $@
 
 install: $(host_prefix)/share/config.site
-download: $(all_sources)
-.PHONY: install cached
+download-one: $(all_sources)
+download-osx:
+	@$(MAKE) -s HOST=x86_64-apple-darwin11 download-one
+download-linux:
+	@$(MAKE) -s HOST=x86_64-unknown-linux-gnu download-one
+download-win:
+	@$(MAKE) -s HOST=x86_64-w64-mingw32 download-one
+download: download-osx download-linux download-win
+.PHONY: install cached download-one download-osx download-linux download-win download
diff --git a/depends/README b/depends/README
index fed2f9b5ab..55e7222697 100644
--- a/depends/README
+++ b/depends/README
@@ -7,7 +7,7 @@ There are several features that make it different from most similar systems:
 
 In theory, binaries for any target OS/architecture can be created, from a
 builder running any OS/architecture. In practice, build-side tools must be
-specified when the defaults don't fit, and packages must be ammended to work
+specified when the defaults don't fit, and packages must be amended to work
 on new hosts. For now, a build architecture of x86_64 is assumed, either on
 Linux or OSX.
 
diff --git a/depends/README.usage b/depends/README.usage
index e768feecf7..f5aa5314a1 100644
--- a/depends/README.usage
+++ b/depends/README.usage
@@ -29,4 +29,7 @@ If some packages are not built, for example 'make NO_WALLET=1', the appropriate
 options will be passed to bitcoin's configure. In this case, --disable-wallet.
 
 Additional targets:
-download: run 'make download' to fetch sources without building them
+download: run 'make download' to fetch all sources without building them
+download-osx: run 'make download-osx' to fetch all sources needed for osx builds
+download-win: run 'make download-win' to fetch all sources needed for win builds
+download-linux: run 'make download-linux' to fetch all sources needed for linux builds
diff --git a/depends/config.guess b/depends/config.guess
index 1f5c50c0d1..dbfb9786cb 100755
--- a/depends/config.guess
+++ b/depends/config.guess
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Attempt to guess a canonical system name.
-#   Copyright 1992-2014 Free Software Foundation, Inc.
+#   Copyright 1992-2015 Free Software Foundation, Inc.
 
-timestamp='2014-03-23'
+timestamp='2015-01-01'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -24,12 +24,12 @@ timestamp='2014-03-23'
 # program.  This Exception is an additional permission under section 7
 # of the GNU General Public License, version 3 ("GPLv3").
 #
-# Originally written by Per Bothner.
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
 #
 # You can get the latest version of this script from:
 # http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
 #
-# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+# Please send patches to <config-patches@gnu.org>.
 
 
 me=`echo "$0" | sed -e 's,.*/,,'`
@@ -50,7 +50,7 @@ version="\
 GNU config.guess ($timestamp)
 
 Originally written by Per Bothner.
-Copyright 1992-2014 Free Software Foundation, Inc.
+Copyright 1992-2015 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -579,8 +579,9 @@ EOF
 	else
 		IBM_ARCH=powerpc
 	fi
-	if [ -x /usr/bin/oslevel ] ; then
-		IBM_REV=`/usr/bin/oslevel`
+	if [ -x /usr/bin/lslpp ] ; then
+		IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+			   awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
 	else
 		IBM_REV=${UNAME_VERSION}.${UNAME_RELEASE}
 	fi
diff --git a/depends/config.sub b/depends/config.sub
index d654d03cdc..6d2e94c8bf 100755
--- a/depends/config.sub
+++ b/depends/config.sub
@@ -1,8 +1,8 @@
 #! /bin/sh
 # Configuration validation subroutine script.
-#   Copyright 1992-2014 Free Software Foundation, Inc.
+#   Copyright 1992-2015 Free Software Foundation, Inc.
 
-timestamp='2014-05-01'
+timestamp='2015-01-01'
 
 # This file is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by
@@ -25,7 +25,7 @@ timestamp='2014-05-01'
 # of the GNU General Public License, version 3 ("GPLv3").
 
 
-# Please send patches with a ChangeLog entry to config-patches@gnu.org.
+# Please send patches to <config-patches@gnu.org>.
 #
 # Configuration subroutine to validate and canonicalize a configuration type.
 # Supply the specified configuration type as an argument.
@@ -68,7 +68,7 @@ Report bugs and patches to <config-patches@gnu.org>."
 version="\
 GNU config.sub ($timestamp)
 
-Copyright 1992-2014 Free Software Foundation, Inc.
+Copyright 1992-2015 Free Software Foundation, Inc.
 
 This is free software; see the source for copying conditions.  There is NO
 warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
@@ -260,7 +260,7 @@ case $basic_machine in
 	| c4x | c8051 | clipper \
 	| d10v | d30v | dlx | dsp16xx \
 	| epiphany \
-	| fido | fr30 | frv \
+	| fido | fr30 | frv | ft32 \
 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
 	| hexagon \
 	| i370 | i860 | i960 | ia64 \
@@ -302,6 +302,7 @@ case $basic_machine in
 	| pdp10 | pdp11 | pj | pjl \
 	| powerpc | powerpc64 | powerpc64le | powerpcle \
 	| pyramid \
+	| riscv32 | riscv64 \
 	| rl78 | rx \
 	| score \
 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
@@ -312,6 +313,7 @@ case $basic_machine in
 	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
 	| ubicom32 \
 	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+	| visium \
 	| we32k \
 	| x86 | xc16x | xstormy16 | xtensa \
 	| z8k | z80)
@@ -326,6 +328,9 @@ case $basic_machine in
 	c6x)
 		basic_machine=tic6x-unknown
 		;;
+	leon|leon[3-9])
+		basic_machine=sparc-$basic_machine
+		;;
 	m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
 		basic_machine=$basic_machine-unknown
 		os=-none
@@ -436,6 +441,7 @@ case $basic_machine in
 	| ubicom32-* \
 	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
 	| vax-* \
+	| visium-* \
 	| we32k-* \
 	| x86-* | x86_64-* | xc16x-* | xps100-* \
 	| xstormy16-* | xtensa*-* \
@@ -773,6 +779,9 @@ case $basic_machine in
 		basic_machine=m68k-isi
 		os=-sysv
 		;;
+	leon-*|leon[3-9]-*)
+		basic_machine=sparc-`echo $basic_machine | sed 's/-.*//'`
+		;;
 	m68knommu)
 		basic_machine=m68k-unknown
 		os=-linux
@@ -828,6 +837,10 @@ case $basic_machine in
 		basic_machine=powerpc-unknown
 		os=-morphos
 		;;
+	moxiebox)
+		basic_machine=moxie-unknown
+		os=-moxiebox
+		;;
 	msdos)
 		basic_machine=i386-pc
 		os=-msdos
@@ -1373,7 +1386,7 @@ case $os in
 	      | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
 	      | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
 	      | -linux-newlib* | -linux-musl* | -linux-uclibc* \
-	      | -uxpv* | -beos* | -mpeix* | -udk* \
+	      | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
 	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
diff --git a/depends/funcs.mk b/depends/funcs.mk
index c1fc0a0e33..b407737f7f 100644
--- a/depends/funcs.mk
+++ b/depends/funcs.mk
@@ -20,18 +20,19 @@ $(sort $(foreach dep,$(2),$(2) $(call int_get_all_dependencies,$(1),$($(dep)_dep
 endef
 
 define fetch_file
-(test -f $(SOURCES_PATH)/$(4) || \
-  ( mkdir -p $$($(1)_extract_dir) && \
-  ( $(build_DOWNLOAD) "$$($(1)_extract_dir)/$(4).temp" "$(2)/$(3)" || \
-    $(build_DOWNLOAD) "$$($(1)_extract_dir)/$(4).temp" "$(FALLBACK_DOWNLOAD_PATH)/$(3)" ) && \
-    echo "$(5)  $$($(1)_extract_dir)/$(4).temp" > $$($(1)_extract_dir)/.$(4).hash && \
-    $(build_SHA256SUM) -c $$($(1)_extract_dir)/.$(4).hash && \
-    mv $$($(1)_extract_dir)/$(4).temp $(SOURCES_PATH)/$(4) ))
+(test -f $$($(1)_source_dir)/$(4) || \
+  ( mkdir -p $$($(1)_download_dir) && echo Fetching $(1)... && \
+  ( $(build_DOWNLOAD) "$$($(1)_download_dir)/$(4).temp" "$(2)/$(3)" || \
+    $(build_DOWNLOAD) "$$($(1)_download_dir)/$(4).temp" "$(FALLBACK_DOWNLOAD_PATH)/$(3)" ) && \
+    echo "$(5)  $$($(1)_download_dir)/$(4).temp" > $$($(1)_download_dir)/.$(4).hash && \
+    $(build_SHA256SUM) -c $$($(1)_download_dir)/.$(4).hash && \
+    mv $$($(1)_download_dir)/$(4).temp $$($(1)_source_dir)/$(4) && \
+    rm -rf $$($(1)_download_dir) ))
 endef
 
 define int_get_build_recipe_hash
-$(eval $(1)_all_file_checksums:=$(shell $(build_SHA256SUM) $(meta_depends) packages/$(1).mk $(addprefix $(PATCHES_PATH)/$(1)/,$($(1)_patches))))
-$(eval $(1)_recipe_hash:=$(shell echo -n "$($(1)_all_file_checksums)" | $(build_SHA256SUM)))
+$(eval $(1)_all_file_checksums:=$(shell $(build_SHA256SUM) $(meta_depends) packages/$(1).mk $(addprefix $(PATCHES_PATH)/$(1)/,$($(1)_patches)) | cut -d" " -f1))
+$(eval $(1)_recipe_hash:=$(shell echo -n "$($(1)_all_file_checksums)" | $(build_SHA256SUM) | cut -d" " -f1))
 endef
 
 define int_get_build_id
@@ -45,17 +46,19 @@ final_build_id_long+=$($(package)_build_id_long)
 #compute package-specific paths
 $(1)_build_subdir?=.
 $(1)_download_file?=$($(1)_file_name)
-$(1)_source:=$(SOURCES_PATH)/$($(1)_file_name)
+$(1)_source_dir:=$(SOURCES_PATH)
+$(1)_source:=$$($(1)_source_dir)/$($(1)_file_name)
 $(1)_staging_dir=$(base_staging_dir)/$(host)/$(1)/$($(1)_version)-$($(1)_build_id)
 $(1)_staging_prefix_dir:=$$($(1)_staging_dir)$($($(1)_type)_prefix)
 $(1)_extract_dir:=$(base_build_dir)/$(host)/$(1)/$($(1)_version)-$($(1)_build_id)
+$(1)_download_dir:=$(base_download_dir)/$(1)-$($(1)_version)
 $(1)_build_dir:=$$($(1)_extract_dir)/$$($(1)_build_subdir)
 $(1)_patch_dir:=$(base_build_dir)/$(host)/$(1)/$($(1)_version)-$($(1)_build_id)/.patches-$($(1)_build_id)
 $(1)_prefixbin:=$($($(1)_type)_prefix)/bin/
 $(1)_cached:=$(BASE_CACHE)/$(host)/$(1)/$(1)-$($(1)_version)-$($(1)_build_id).tar.gz
 
 #stamps
-$(1)_fetched=$$($(1)_extract_dir)/.stamp_fetched
+$(1)_fetched=$$($(1)_source_dir)/download-stamps/.stamp_fetched-$(1)-$($(1)_file_name)
 $(1)_extracted=$$($(1)_extract_dir)/.stamp_extracted
 $(1)_preprocessed=$$($(1)_extract_dir)/.stamp_preprocessed
 $(1)_cleaned=$$($(1)_extract_dir)/.stamp_cleaned
@@ -150,7 +153,6 @@ endef
 
 define int_add_cmds
 $($(1)_fetched):
-	$(AT)echo Fetching $(1)...
 	$(AT)mkdir -p $$(@D) $(SOURCES_PATH)
 	$(AT)cd $$(@D); $(call $(1)_fetch_cmds,$(1))
 	$(AT)touch $$@
@@ -203,7 +205,7 @@ endef
 # These functions create the build targets for each package. They must be
 # broken down into small steps so that each part is done for all packages
 # before moving on to the next step. Otherwise, a package's info
-# (build-id for example) would only be avilable to another package if it
+# (build-id for example) would only be available to another package if it
 # happened to be computed already.
 
 #set the type for host/build packages.
diff --git a/depends/hosts/darwin.mk b/depends/hosts/darwin.mk
index 8d718eba17..2958dc50cc 100644
--- a/depends/hosts/darwin.mk
+++ b/depends/hosts/darwin.mk
@@ -1,8 +1,9 @@
-OSX_MIN_VERSION=10.6
-OSX_SDK_VERSION=10.7
+OSX_MIN_VERSION=10.7
+OSX_SDK_VERSION=10.9
 OSX_SDK=$(SDK_PATH)/MacOSX$(OSX_SDK_VERSION).sdk
-darwin_CC=clang -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK)
-darwin_CXX=clang++ -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK)
+LD64_VERSION=241.9
+darwin_CC=clang -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION)
+darwin_CXX=clang++ -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION)
 
 darwin_CFLAGS=-pipe
 darwin_CXXFLAGS=$(darwin_CFLAGS)
diff --git a/depends/packages/gmp.mk b/depends/packages/gmp.mk
deleted file mode 100644
index bcbf50ceae..0000000000
--- a/depends/packages/gmp.mk
+++ /dev/null
@@ -1,30 +0,0 @@
-package=gmp
-$(package)_version=6.0.0a
-$(package)_download_path=https://gmplib.org/download/gmp
-$(package)_file_name=$(package)-$($(package)_version).tar.bz2
-$(package)_sha256_hash=7f8e9a804b9c6d07164cf754207be838ece1219425d64e28cfa3e70d5c759aaf
-$(package)_patches=arm_gmp_build_fix.patch darwin_gmp_build_fix.patch
-
-define $(package)_preprocess_cmds
-  patch -p1 < $($(package)_patch_dir)/arm_gmp_build_fix.patch && \
-  patch -p1 < $($(package)_patch_dir)/darwin_gmp_build_fix.patch
-endef
-
-define $(package)_set_vars
-  $(package)_config_opts=--disable-shared CC_FOR_BUILD=$(build_CC)
-  $(package)_config_opts_x86_64_darwin=--with-pic
-  $(package)_config_opts_x86_64_linux=--with-pic
-  $(package)_config_opts_arm_linux=--with-pic
-endef
-
-define $(package)_config_cmds
-  $($(package)_autoconf)
-endef
-
-define $(package)_build_cmds
-  $(MAKE)
-endef
-
-define $(package)_stage_cmds
-  $(MAKE) DESTDIR=$($(package)_staging_dir) install
-endef
diff --git a/depends/packages/native_cctools.mk b/depends/packages/native_cctools.mk
index ad989cb544..951ad4fb29 100644
--- a/depends/packages/native_cctools.mk
+++ b/depends/packages/native_cctools.mk
@@ -1,61 +1,37 @@
 package=native_cctools
-$(package)_version=809
-$(package)_download_path=http://www.opensource.apple.com/tarballs/cctools
-$(package)_file_name=cctools-$($(package)_version).tar.gz
-$(package)_sha256_hash=03ba62749b843b131c7304a044a98c6ffacd65b1399b921d69add0375f79d8ad
-$(package)_build_subdir=cctools2odcctools/odcctools-$($(package)_version)
-$(package)_dependencies=native_libuuid native_openssl
-$(package)_ld64_download_file=ld64-127.2.tar.gz
-$(package)_ld64_download_path=http://www.opensource.apple.com/tarballs/ld64
-$(package)_ld64_file_name=$($(package)_ld64_download_file)
-$(package)_ld64_sha256_hash=97b75547b2bd761306ab3e15ae297f01e7ab9760b922bc657f4ef72e4e052142
-$(package)_dyld_download_file=dyld-195.5.tar.gz
-$(package)_dyld_download_path=http://www.opensource.apple.com/tarballs/dyld
-$(package)_dyld_file_name=$($(package)_dyld_download_file)
-$(package)_dyld_sha256_hash=2cf0484c87cf79b606b351a7055a247dae84093ae92c747a74e0cde2c8c8f83c
-$(package)_toolchain4_download_file=10cc648683617cca8bcbeae507888099b41b530c.tar.gz
-$(package)_toolchain4_download_path=https://github.com/mingwandroid/toolchain4/archive
-$(package)_toolchain4_file_name=toolchain4-1.tar.gz
-$(package)_toolchain4_sha256_hash=18406961fd4a1ec5c7ea35c91d6a80a2f8bb797a2bd243a610bd75e13eff9aca
-$(package)_clang_download_file=clang+llvm-3.2-x86-linux-ubuntu-12.04.tar.gz
-$(package)_clang_download_path=http://llvm.org/releases/3.2
-$(package)_clang_file_name=clang-llvm-3.2-x86-linux-ubuntu-12.04.tar.gz
-$(package)_clang_sha256_hash=b9d57a88f9514fa1f327a1a703756d0c1c960f4c58494a5bd80313245d13ffff
-
+$(package)_version=ee31ae567931c426136c94aad457c7b51d844beb
+$(package)_download_path=https://github.com/theuni/cctools-port/archive
+$(package)_file_name=$($(package)_version).tar.gz
+$(package)_sha256_hash=ef107e6ab1b3994cb22e14f4f5c59ea0c0b5a988e6b21d42ed9616b018bbcbf9
+$(package)_build_subdir=cctools
+$(package)_clang_version=3.3
+$(package)_clang_download_path=http://llvm.org/releases/$($(package)_clang_version)
+$(package)_clang_download_file=clang+llvm-$($(package)_clang_version)-amd64-Ubuntu-12.04.2.tar.gz
+$(package)_clang_file_name=clang-llvm-$($(package)_clang_version)-amd64-Ubuntu-12.04.2.tar.gz
+$(package)_clang_sha256_hash=60d8f69f032d62ef61bf527857ebb933741ec3352d4d328c5516aa520662dab7
 define $(package)_fetch_cmds
 $(call fetch_file,$(package),$($(package)_download_path),$($(package)_download_file),$($(package)_file_name),$($(package)_sha256_hash)) && \
-$(call fetch_file,$(package),$($(package)_ld64_download_path),$($(package)_ld64_download_file),$($(package)_ld64_file_name),$($(package)_ld64_sha256_hash)) && \
-$(call fetch_file,$(package),$($(package)_dyld_download_path),$($(package)_dyld_download_file),$($(package)_dyld_file_name),$($(package)_dyld_sha256_hash)) && \
-$(call fetch_file,$(package),$($(package)_clang_download_path),$($(package)_clang_download_file),$($(package)_clang_file_name),$($(package)_clang_sha256_hash)) && \
-$(call fetch_file,$(package),$($(package)_toolchain4_download_path),$($(package)_toolchain4_download_file),$($(package)_toolchain4_file_name),$($(package)_toolchain4_sha256_hash))
+$(call fetch_file,$(package),$($(package)_clang_download_path),$($(package)_clang_download_file),$($(package)_clang_file_name),$($(package)_clang_sha256_hash))
 endef
 
-define $(package)_set_vars
-$(package)_config_opts=--target=$(host) --with-sysroot=$(OSX_SDK)
-$(package)_cflags+=-m32
-$(package)_cxxflags+=-m32
-$(package)_cppflags+=-D__DARWIN_UNIX03 -D__STDC_CONSTANT_MACROS -D__STDC_LIMIT_MACROS
-$(package)_ldflags+=-m32 -Wl,-rpath=\\$$$$$$$$\$$$$$$$$ORIGIN/../lib
-$(package)_ldflags+=-L$$(native_cctools_extract_dir)/clang+llvm-3.2-x86-linux-ubuntu-12.04/lib
-endef
 define $(package)_extract_cmds
-  tar --strip-components=1 -xf $(SOURCES_PATH)/$($(package)_toolchain4_file_name) && \
-  ln -sf $($(package)_source) cctools2odcctools/$($(package)_file_name) && \
-  ln -sf $(SOURCES_PATH)/$($(package)_ld64_file_name) cctools2odcctools/$($(package)_ld64_file_name) && \
-  ln -sf $(SOURCES_PATH)/$($(package)_dyld_file_name) cctools2odcctools/$($(package)_dyld_file_name) && \
-  tar xf $(SOURCES_PATH)/$($(package)_clang_file_name) && \
-  mkdir -p $(SDK_PATH) sdks &&\
-  cd sdks; ln -sf $(OSX_SDK) MacOSX$(OSX_SDK_VERSION).sdk
+  mkdir -p toolchain/bin toolchain/lib/clang/3.5/include && \
+  tar --strip-components=1 -C toolchain -xf $($(package)_source_dir)/$($(package)_clang_file_name) && \
+  echo "#!/bin/sh" > toolchain/bin/$(host)-dsymutil && \
+  echo "exit 0" >> toolchain/bin/$(host)-dsymutil && \
+  chmod +x toolchain/bin/$(host)-dsymutil && \
+  tar --strip-components=1 -xf $($(package)_source)
+endef
+
+define $(package)_set_vars
+$(package)_config_opts=--target=$(host) --disable-libuuid
+$(package)_ldflags+=-Wl,-rpath=\\$$$$$$$$\$$$$$$$$ORIGIN/../lib
+$(package)_cc=$($(package)_extract_dir)/toolchain/bin/clang
+$(package)_cxx=$($(package)_extract_dir)/toolchain/bin/clang++
 endef
 
 define $(package)_preprocess_cmds
-  sed -i "s|GCC_DIR|LLVM_CLANG_DIR|g" cctools2odcctools/extract.sh && \
-  sed -i "s|llvmgcc42-2336.1|clang+llvm-3.2-x86-linux-ubuntu-12.04|g" cctools2odcctools/extract.sh && \
-  sed -i "s|/llvmCore/include/llvm-c|/include/llvm-c \$$$${LLVM_CLANG_DIR}/include/llvm |" cctools2odcctools/extract.sh && \
-  sed -i "s|fAC_INIT|AC_INIT|" cctools2odcctools/files/configure.ac && \
-  sed -i 's/\# Dynamically linked LTO/\t ;\&\n\t linux*)\n# Dynamically linked LTO/' cctools2odcctools/files/configure.ac && \
-  cd cctools2odcctools; ./extract.sh --osxver $(OSX_SDK_VERSION) && \
-  sed -i "s|define\tPC|define\tPC_|" odcctools-809/include/architecture/sparc/reg.h
+  cd $($(package)_build_subdir); ./autogen.sh
 endef
 
 define $(package)_config_cmds
@@ -68,13 +44,13 @@ endef
 
 define $(package)_stage_cmds
   $(MAKE) DESTDIR=$($(package)_staging_dir) install && \
-  cd ../../clang+llvm-3.2-x86-linux-ubuntu-12.04 && \
-  mkdir -p $($(package)_staging_prefix_dir)/lib/clang/3.2/include && \
-  mkdir -p $($(package)_staging_prefix_dir)/bin && \
+  cd $($(package)_extract_dir)/toolchain && \
+  mkdir -p $($(package)_staging_prefix_dir)/lib/clang/$($(package)_clang_version)/include && \
+  mkdir -p $($(package)_staging_prefix_dir)/bin $($(package)_staging_prefix_dir)/include && \
   cp -P bin/clang bin/clang++ $($(package)_staging_prefix_dir)/bin/ &&\
   cp lib/libLTO.so $($(package)_staging_prefix_dir)/lib/ && \
-  cp lib/clang/3.2/include/* $($(package)_staging_prefix_dir)/lib/clang/3.2/include/ && \
-  echo "#!/bin/sh" > $($(package)_staging_prefix_dir)/bin/$(host)-dsymutil && \
-  echo "exit 0" >> $($(package)_staging_prefix_dir)/bin/$(host)-dsymutil && \
-  chmod +x $($(package)_staging_prefix_dir)/bin/$(host)-dsymutil
+  cp -rf lib/clang/$($(package)_clang_version)/include/* $($(package)_staging_prefix_dir)/lib/clang/$($(package)_clang_version)/include/ && \
+  cp bin/$(host)-dsymutil $($(package)_staging_prefix_dir)/bin && \
+  if `test -d include/c++/`; then cp -rf include/c++/ $($(package)_staging_prefix_dir)/include/; fi && \
+  if `test -d lib/c++/`; then cp -rf lib/c++/ $($(package)_staging_prefix_dir)/lib/; fi
 endef
diff --git a/depends/packages/native_cdrkit.mk b/depends/packages/native_cdrkit.mk
index 2cc388b4b3..cf694edb30 100644
--- a/depends/packages/native_cdrkit.mk
+++ b/depends/packages/native_cdrkit.mk
@@ -1,6 +1,6 @@
 package=native_cdrkit
 $(package)_version=1.1.11
-$(package)_download_path=http://distro.ibiblio.org/fatdog/source/c
+$(package)_download_path=http://distro.ibiblio.org/fatdog/source/600/c
 $(package)_file_name=cdrkit-$($(package)_version).tar.bz2
 $(package)_sha256_hash=b50d64c214a65b1a79afe3a964c691931a4233e2ba605d793eb85d0ac3652564
 $(package)_patches=cdrkit-deterministic.patch
diff --git a/depends/packages/native_comparisontool.mk b/depends/packages/native_comparisontool.mk
index 3d430d4306..d1b86dc2de 100644
--- a/depends/packages/native_comparisontool.mk
+++ b/depends/packages/native_comparisontool.mk
@@ -17,5 +17,5 @@ endef
 
 define $(package)_stage_cmds
   mkdir -p $($(package)_staging_prefix_dir)/share/$($(package)_install_dirname) && \
-  mv $(SOURCES_PATH)/$($(package)_file_name) $($(package)_staging_prefix_dir)/share/$($(package)_install_dirname)/$($(package)_install_filename)
+  cp $($(package)_source) $($(package)_staging_prefix_dir)/share/$($(package)_install_dirname)/$($(package)_install_filename)
 endef
diff --git a/depends/packages/native_libuuid.mk b/depends/packages/native_libuuid.mk
deleted file mode 100644
index b25540f80d..0000000000
--- a/depends/packages/native_libuuid.mk
+++ /dev/null
@@ -1,24 +0,0 @@
-package:=native_libuuid
-$(package)_version=1.41.14
-$(package)_download_path=http://downloads.sourceforge.net/e2fsprogs
-$(package)_file_name=e2fsprogs-libs-$($(package)_version).tar.gz
-$(package)_sha256_hash=dbc7a138a3218d9b80a0626b5b692d76934d6746d8cbb762751be33785d8d9f5
-
-define $(package)_set_vars
-$(package)_config_opts=--disable-elf-shlibs --disable-uuidd
-$(package)_cflags+=-m32
-$(package)_ldflags+=-m32
-$(package)_cxxflags+=-m32
-endef
-
-define $(package)_config_cmds
-  $($(package)_autoconf)
-endef
-
-define $(package)_build_cmds
-  $(MAKE) -C lib/uuid
-endef
-
-define $(package)_stage_cmds
-  $(MAKE) DESTDIR=$($(package)_staging_dir) -C lib/uuid install
-endef
diff --git a/depends/packages/native_openssl.mk b/depends/packages/native_openssl.mk
deleted file mode 100644
index 1f25d6afcc..0000000000
--- a/depends/packages/native_openssl.mk
+++ /dev/null
@@ -1,21 +0,0 @@
-package=native_openssl
-$(package)_version=1.0.1h
-$(package)_download_path=https://www.openssl.org/source
-$(package)_file_name=openssl-$($(package)_version).tar.gz
-$(package)_sha256_hash=9d1c8a9836aa63e2c6adb684186cbd4371c9e9dcc01d6e3bb447abf2d4d3d093
-define $(package)_set_vars
-$(package)_build_config_opts= --prefix=$(build_prefix) no-zlib no-shared no-krb5C linux-generic32 -m32
-endef
-
-define $(package)_config_cmds
-  ./Configure $($(package)_build_config_opts) &&\
-  sed -i "s|engines apps test|engines|" Makefile
-endef
-
-define $(package)_build_cmds
-  $(MAKE) -j1
-endef
-
-define $(package)_stage_cmds
-  $(MAKE) INSTALL_PREFIX=$($(package)_staging_dir) -j1 install_sw
-endef
diff --git a/depends/packages/openssl.mk b/depends/packages/openssl.mk
index 6d7a556c11..22b1017ffc 100644
--- a/depends/packages/openssl.mk
+++ b/depends/packages/openssl.mk
@@ -1,8 +1,8 @@
 package=openssl
-$(package)_version=1.0.1j
+$(package)_version=1.0.1k
 $(package)_download_path=https://www.openssl.org/source
 $(package)_file_name=$(package)-$($(package)_version).tar.gz
-$(package)_sha256_hash=1b60ca8789ba6f03e8ef20da2293b8dc131c39d83814e775069f02d26354edf3
+$(package)_sha256_hash=8f9faeaebad088e772f4ef5e38252d472be4d878c6b3a2718c10a4fcebe7a41c
 
 define $(package)_set_vars
 $(package)_config_env=AR="$($(package)_ar)" RANLIB="$($(package)_ranlib)" CC="$($(package)_cc)"
@@ -14,13 +14,16 @@ $(package)_config_opts_linux=-fPIC
 $(package)_config_opts_x86_64_linux=linux-x86_64
 $(package)_config_opts_i686_linux=linux-generic32
 $(package)_config_opts_arm_linux=linux-generic32
+$(package)_config_opts_aarch64_linux=linux-generic64
+$(package)_config_opts_mipsel_linux=linux-generic32
+$(package)_config_opts_mips_linux=linux-generic32
 $(package)_config_opts_x86_64_darwin=darwin64-x86_64-cc
 $(package)_config_opts_x86_64_mingw32=mingw64
 $(package)_config_opts_i686_mingw32=mingw
 endef
 
 define $(package)_preprocess_cmds
-  sed -i.old "/define DATE/d" crypto/Makefile && \
+  sed -i.old "/define DATE/d" util/mkbuildinf.pl && \
   sed -i.old "s|engines apps test|engines|" Makefile.org
 endef
 
diff --git a/depends/packages/packages.mk b/depends/packages/packages.mk
index 305d21cb2d..08fd8a5247 100644
--- a/depends/packages/packages.mk
+++ b/depends/packages/packages.mk
@@ -1,4 +1,4 @@
-packages:=boost openssl gmp
+packages:=boost openssl
 native_packages := native_ccache native_comparisontool
 
 qt_native_packages = native_protobuf
@@ -19,5 +19,5 @@ wallet_packages=bdb
 upnp_packages=miniupnpc
 
 ifneq ($(build_os),darwin)
-darwin_native_packages=native_libuuid native_openssl native_cctools native_cdrkit native_libdmg-hfsplus
+darwin_native_packages=native_cctools native_cdrkit native_libdmg-hfsplus
 endif
diff --git a/depends/packages/qt.mk b/depends/packages/qt.mk
index 6a8e714a48..59c12d22f1 100644
--- a/depends/packages/qt.mk
+++ b/depends/packages/qt.mk
@@ -7,7 +7,7 @@ $(package)_dependencies=openssl
 $(package)_linux_dependencies=freetype fontconfig dbus libxcb libX11 xproto libXext
 $(package)_build_subdir=qtbase
 $(package)_qt_libs=corelib network widgets gui plugins testlib
-$(package)_patches=mac-qmake.conf fix-xcb-include-order.patch qt5-tablet-osx.patch
+$(package)_patches=mac-qmake.conf fix-xcb-include-order.patch qt5-tablet-osx.patch qt5-yosemite.patch
 
 define $(package)_set_vars
 $(package)_config_opts_release = -release
@@ -34,7 +34,7 @@ $(package)_config_opts += -qt-libpng -qt-libjpeg -qt-zlib -qt-pcre
 
 ifneq ($(build_os),darwin)
 $(package)_config_opts_darwin = -xplatform macx-clang-linux -device-option MAC_SDK_PATH=$(OSX_SDK) -device-option CROSS_COMPILE="$(host)-"
-$(package)_config_opts_darwin += -device-option MAC_MIN_VERSION=$(OSX_MIN_VERSION) -device-option MAC_TARGET=$(host)
+$(package)_config_opts_darwin += -device-option MAC_MIN_VERSION=$(OSX_MIN_VERSION) -device-option MAC_TARGET=$(host) -device-option MAC_LD64_VERSION=$(LD64_VERSION)
 endif
 
 $(package)_config_opts_linux  = -qt-xkbcommon -qt-xcb  -no-eglfs -no-linuxfb -system-freetype -no-sm -fontconfig -no-xinput2 -no-libudev -no-egl -no-opengl
@@ -56,6 +56,7 @@ define $(package)_preprocess_cmds
   cp -f $($(package)_patch_dir)/mac-qmake.conf qtbase/mkspecs/macx-clang-linux/qmake.conf && \
   patch -p1 < $($(package)_patch_dir)/fix-xcb-include-order.patch && \
   patch -p1 < $($(package)_patch_dir)/qt5-tablet-osx.patch && \
+  patch -d qtbase -p1 < $($(package)_patch_dir)/qt5-yosemite.patch && \
   echo "QMAKE_CFLAGS     += $($(package)_cflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
   echo "QMAKE_CXXFLAGS   += $($(package)_cxxflags) $($(package)_cppflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
   echo "QMAKE_LFLAGS     += $($(package)_ldflags)" >> qtbase/mkspecs/common/gcc-base.conf && \
diff --git a/depends/patches/gmp/arm_gmp_build_fix.patch b/depends/patches/gmp/arm_gmp_build_fix.patch
deleted file mode 100644
index 666cf58cf6..0000000000
--- a/depends/patches/gmp/arm_gmp_build_fix.patch
+++ /dev/null
@@ -1,21 +0,0 @@
-
-# HG changeset patch
-# User Torbjorn Granlund <tege@gmplib.org>
-# Date 1396602422 -7200
-# Node ID 676e2d0f0e4dd301a7066079d2c9326c25c34a40
-# Parent  0194a75b56b21a9196626430af86c5bd9110c42d
-Conditionalise ARM asm on !__thumb__.
-
-diff -r 0194a75b56b2 -r 676e2d0f0e4d mpn/generic/div_qr_1n_pi1.c
---- a/mpn/generic/div_qr_1n_pi1.c	Thu Apr 03 23:58:51 2014 +0200
-+++ b/mpn/generic/div_qr_1n_pi1.c	Fri Apr 04 11:07:02 2014 +0200
-@@ -130,7 +130,7 @@
- 	     "%2" ((UDItype)(a0)), "r" ((UDItype)(b0)) __CLOBBER_CC)
- #endif
- 
--#if defined (__arm__) && W_TYPE_SIZE == 32
-+#if defined (__arm__) && !defined (__thumb__) && W_TYPE_SIZE == 32
- #define add_mssaaaa(m, sh, sl, ah, al, bh, bl)				\
-   __asm__ (  "adds	%2, %5, %6\n\t"					\
- 	     "adcs	%1, %3, %4\n\t"					\
-
diff --git a/depends/patches/gmp/darwin_gmp_build_fix.patch b/depends/patches/gmp/darwin_gmp_build_fix.patch
deleted file mode 100644
index b9cfd80e77..0000000000
--- a/depends/patches/gmp/darwin_gmp_build_fix.patch
+++ /dev/null
@@ -1,29 +0,0 @@
-
-# HG changeset patch
-# User Torbjorn Granlund <tege@gmplib.org>
-# Date 1396470504 -7200
-# Node ID 1fab0adc5ff7d9ecddcbda96f407da58347bb49c
-# Parent  db645603dcdb41afcf78b19b551ecd5a01c3841c
-Workaround for Darwin assembler quirk.
-
-diff -r db645603dcdb -r 1fab0adc5ff7 mpn/x86_64/k8/redc_1.asm
---- a/mpn/x86_64/k8/redc_1.asm	Mon Mar 31 23:04:32 2014 +0200
-+++ b/mpn/x86_64/k8/redc_1.asm	Wed Apr 02 22:28:24 2014 +0200
-@@ -114,7 +114,7 @@
- 
- 	JUMPTABSECT
- 	ALIGN(8)
--L(tab):	JMPENT(	L(0m4), L(tab))
-+L(tab):	JMPENT(	L(0), L(tab))
- 	JMPENT(	L(1), L(tab))
- 	JMPENT(	L(2), L(tab))
- 	JMPENT(	L(3), L(tab))
-@@ -397,6 +397,7 @@
- 
- 
- 	ALIGN(16)
-+L(0):
- L(0m4):
- L(lo0):	mov	(mp,nneg,8), %rax
- 	mov	nneg, i
-
diff --git a/depends/patches/qt/mac-qmake.conf b/depends/patches/qt/mac-qmake.conf
index f7302265bc..a97945bc8c 100644
--- a/depends/patches/qt/mac-qmake.conf
+++ b/depends/patches/qt/mac-qmake.conf
@@ -15,7 +15,7 @@ QMAKE_MAC_SDK.macosx.platform_name = macosx
 QMAKE_CFLAGS += -target $${MAC_TARGET}
 QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_CFLAGS
 QMAKE_CXXFLAGS += $$QMAKE_CFLAGS
-QMAKE_LFLAGS += -target $${MAC_TARGET}
+QMAKE_LFLAGS += -target $${MAC_TARGET} -mlinker-version=$${MAC_LD64_VERSION}
 QMAKE_AR = $${CROSS_COMPILE}ar cq
 QMAKE_RANLIB=$${CROSS_COMPILE}ranlib
 QMAKE_LIBTOOL=$${CROSS_COMPILE}libtool
diff --git a/depends/patches/qt/qt5-yosemite.patch b/depends/patches/qt/qt5-yosemite.patch
new file mode 100644
index 0000000000..d569d34d47
--- /dev/null
+++ b/depends/patches/qt/qt5-yosemite.patch
@@ -0,0 +1,52 @@
+The following patch was taken from upstream:
+https://qt.gitorious.org/qt/qtbase/commit/70e4428b6f1c6a4bad112203f67ee7d22107616c.patch
+
+The first hunk was removed because it conflicts with 5.2.1, and is not currently needed.
+
+From 70e4428b6f1c6a4bad112203f67ee7d22107616c Mon Sep 17 00:00:00 2001
+From: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
+Date: Tue, 3 Jun 2014 14:20:20 +0200
+Subject: [PATCH] Cocoa: Adapt to Xcode 6 clang version sudden pickiness
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Yes, that means OS X Yosemite fix.
+
+Change-Id: I236f7af7b803de24ff0895e04c9a9253b5cfdb3b
+Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
+---
+ .../platforms/cocoa/qcocoaaccessibilityelement.mm  |    2 +-
+ .../platforms/cocoa/qcocoaapplicationdelegate.mm   |    2 +-
+ src/plugins/platforms/cocoa/qcocoamenuloader.mm    |    2 +-
+ 3 files changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
+index f841184..548c6a2 100644
+--- a/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
++++ b/src/plugins/platforms/cocoa/qcocoaapplicationdelegate.mm
+@@ -124,7 +124,7 @@ static void cleanupCocoaApplicationDelegate()
+     [dockMenu release];
+     [qtMenuLoader release];
+     if (reflectionDelegate) {
+-        [NSApp setDelegate:reflectionDelegate];
++        [[NSApplication sharedApplication] setDelegate:reflectionDelegate];
+         [reflectionDelegate release];
+     }
+     [[NSNotificationCenter defaultCenter] removeObserver:self];
+diff --git a/src/plugins/platforms/cocoa/qcocoamenuloader.mm b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
+index 60bc3b5..9340e94 100644
+--- a/src/plugins/platforms/cocoa/qcocoamenuloader.mm
++++ b/src/plugins/platforms/cocoa/qcocoamenuloader.mm
+@@ -174,7 +174,7 @@ QT_END_NAMESPACE
+ - (void)removeActionsFromAppMenu
+ {
+     for (NSMenuItem *item in [appMenu itemArray])
+-        [item setTag:nil];
++        [item setTag:0];
+ }
+ 
+ - (void)dealloc
+-- 
+1.7.1
+
diff --git a/doc/Doxyfile b/doc/Doxyfile
index e0339e652e..8a11d1e8d0 100644
--- a/doc/Doxyfile
+++ b/doc/Doxyfile
@@ -34,7 +34,7 @@ PROJECT_NAME           = Bitcoin
 # This could be handy for archiving the generated documentation or 
 # if some version control system is used.
 
-PROJECT_NUMBER         = 0.9.99
+PROJECT_NUMBER         = 0.10.99
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description 
 # for a project that appears at the top of each page and should give viewer 
diff --git a/doc/README.md b/doc/README.md
index d5d61738e8..0ade8f9923 100644
--- a/doc/README.md
+++ b/doc/README.md
@@ -1,12 +1,9 @@
-Bitcoin 0.9.99 BETA
+Bitcoin Core 0.10.99
 =====================
 
-Copyright (c) 2009-2014 Bitcoin Developers
-
-
 Setup
 ---------------------
-[Bitcoin Core](http://bitcoin.org/en/download) is the original Bitcoin client and it builds the backbone of the network. However, it downloads and stores the entire history of Bitcoin transactions (which is currently several GBs); depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more. Thankfully you only have to do this once. If you would like the process to go faster you can [download the blockchain directly](bootstrap.md).
+[Bitcoin Core](http://bitcoin.org/en/download) is the original Bitcoin client and it builds the backbone of the network. However, it downloads and stores the entire history of Bitcoin transactions (which is currently several GBs); depending on the speed of your computer and network connection, the synchronization process can take anywhere from a few hours to a day or more.
 
 Running
 ---------------------
@@ -51,7 +48,7 @@ Development
 ---------------------
 The Bitcoin repo's [root README](https://github.com/bitcoin/bitcoin/blob/master/README.md) contains relevant information on the development process and automated testing.
 
-- [Coding Guidelines](coding.md)
+- [Developer Notes](developer-notes.md)
 - [Multiwallet Qt Development](multiwallet-qt.md)
 - [Release Notes](release-notes.md)
 - [Release Process](release-process.md)
@@ -71,6 +68,6 @@ The Bitcoin repo's [root README](https://github.com/bitcoin/bitcoin/blob/master/
 
 License
 ---------------------
-Distributed under the [MIT/X11 software license](http://www.opensource.org/licenses/mit-license.php).
+Distributed under the [MIT software license](http://www.opensource.org/licenses/mit-license.php).
 This product includes software developed by the OpenSSL Project for use in the [OpenSSL Toolkit](https://www.openssl.org/). This product includes
 cryptographic software written by Eric Young ([eay@cryptsoft.com](mailto:eay@cryptsoft.com)), and UPnP software written by Thomas Bernard.
diff --git a/doc/README_osx.txt b/doc/README_osx.txt
index d56234f7d9..6c0c21c190 100644
--- a/doc/README_osx.txt
+++ b/doc/README_osx.txt
@@ -29,14 +29,15 @@ originally done in toolchain4.
 
 To complicate things further, all builds must target an Apple SDK. These SDKs
 are free to download, but not redistributable.
-To obtain it, register for a developer account, then download xcode4630916281a.dmg:
-https://developer.apple.com/downloads/download.action?path=Developer_Tools/xcode_4.6.3/xcode4630916281a.dmg
+To obtain it, register for a developer account, then download the XCode 6.1.1 dmg:
+https://developer.apple.com/downloads/download.action?path=Developer_Tools/xcode_6.1.1/xcode_6.1.1.dmg
+
 This file is several gigabytes in size, but only a single directory inside is
-needed: Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk
+needed: Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk
 
 Unfortunately, the usual linux tools (7zip, hpmount, loopback mount) are incapable of opening this file.
 To create a tarball suitable for gitian input, mount the dmg in OSX, then create it with:
-  $ tar -C /Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/ -czf MacOSX10.7.sdk.tar.gz MacOSX10.7.sdk
+  $ tar -C /Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/ -czf MacOSX10.9.sdk.tar.gz MacOSX10.9.sdk
 
 
 The gitian descriptors build 2 sets of files: Linux tools, then Apple binaries
diff --git a/doc/README_windows.txt b/doc/README_windows.txt
index 368f2b45e1..c582941696 100644
--- a/doc/README_windows.txt
+++ b/doc/README_windows.txt
@@ -1,13 +1,5 @@
-Bitcoin 0.9.99 BETA
-
-Copyright (c) 2009-2014 Bitcoin Core Developers
-
-Distributed under the MIT/X11 software license, see the accompanying
-file COPYING or http://www.opensource.org/licenses/mit-license.php.
-This product includes software developed by the OpenSSL Project for use in
-the OpenSSL Toolkit (https://www.openssl.org/).  This product includes
-cryptographic software written by Eric Young (eay@cryptsoft.com).
-
+Bitcoin Core 0.10.99
+=====================
 
 Intro
 -----
diff --git a/doc/REST-interface.md b/doc/REST-interface.md
new file mode 100644
index 0000000000..0af650b4e8
--- /dev/null
+++ b/doc/REST-interface.md
@@ -0,0 +1,27 @@
+Unauthenticated REST Interface
+==============================
+
+The REST API can be enabled with the `-rest` option.
+
+Supported API
+-------------
+`GET /rest/tx/TX-HASH.{bin|hex|json}`
+
+Given a transaction hash,
+Returns a transaction, in binary, hex-encoded binary or JSON formats.
+
+`GET /rest/block/BLOCK-HASH.{bin|hex|json}`
+`GET /rest/block/notxdetails/BLOCK-HASH.{bin|hex|json}`
+
+Given a block hash,
+Returns a block, in binary, hex-encoded binary or JSON formats.
+
+The HTTP request and response are both handled entirely in-memory, thus making maximum memory usage at least 2.66MB (1 MB max block, plus hex encoding) per request.
+
+With the /notxdetails/ option JSON response will only contain the transaction hash instead of the complete transaction details. The option only affects the JSON response.
+
+For full TX query capability, one must enable the transaction index via "txindex=1" command line / configuration option.
+
+Risks
+-------------
+Running a webbrowser on the same node with a REST enabled bitcoind can be a risk. Accessing prepared XSS websites could read out tx/block data of your node by placing links like `<script src="http://127.0.0.1:1234/tx/json/1234567890">` which might break the nodes privacy.
+\ No newline at end of file
diff --git a/doc/assets-attribution.md b/doc/assets-attribution.md
index cd864f254d..c860cdc534 100644
--- a/doc/assets-attribution.md
+++ b/doc/assets-attribution.md
@@ -1,103 +1,45 @@
 The following is a list of assets used in the bitcoin source and their proper attribution.
 
-[Wladimir van der Laan](https://github.com/laanwj)
------------------------
-#### Info
-* License: MIT
-
-### Assets Used
-	src/qt/res/icons/clock*.png, src/qt/res/icons/tx*.png,
-	src/qt/res/src/clock_green.svg, src/qt/res/src/clock1.svg,
-	src/qt/res/src/clock2.svg, src/qt/res/src/clock3.svg,
-	src/qt/res/src/clock4.svg, src/qt/res/src/clock5.svg,
-	src/qt/res/src/inout.svg, src/qt/res/src/questionmark.svg
-
-[David Vignoni](http://www.icon-king.com)
------------------------
-
-### Info
-* Icon Pack: NUVOLA ICON THEME for KDE 3.x
-* Designer: David Vignoni (david@icon-king.com)
-* License: LGPL
-* Site: [http://www.icon-king.com/projects/nuvola](http://www.icon-king.com/projects/nuvola)
-
-### Assets Used
-	src/qt/res/icons/address-book.png, src/qt/res/icons/export.png,
-	src/qt/res/icons/history.png, src/qt/res/icons/key.png,
-	src/qt/res/icons/lock_*.png, src/qt/res/icons/overview.png,
-	src/qt/res/icons/receive.png, src/qt/res/icons/send.png,
-	src/qt/res/icons/synced.png, src/qt/res/icons/filesave.png
-
-schollidesign
------------------------
-
-### Info
-* Icon Pack: Human-O2
-* Designer: schollidesign
-* License: GNU/GPL
-* Site: [http://findicons.com/icon/93743/blocks_gnome_netstatus_0](http://findicons.com/icon/93743/blocks_gnome_netstatus_0)
-
-### Assets Used
-	src/qt/res/icons/connect*.png
-
-md2k7
------------------------
-
-### Info
-* Designer: md2k7
-* License: You are free to do with these icons as you wish, including selling, copying, modifying etc.
-* License: MIT
-* Site: [https://bitcointalk.org/index.php?topic=15276.0](https://bitcointalk.org/index.php?topic=15276.0)
-
-### Assets Used
-	src/qt/res/icons/transaction*.png
-
-[Everaldo.com](http://www.everaldo.com)
+[Typicons/Stephen Hutchings](http://typicons.com)
 -----------------------
 
 ### Info
-* Icon Pack: Crystal SVG
-* Designer: [http://www.everaldo.com](http://www.everaldo.com)
-* License: LGPL
-
-### Assets Used
-	src/qt/res/icons/configure.png, src/qt/res/icons/quit.png,
-	src/qt/res/icons/editcopy.png, src/qt/res/icons/editpaste.png,
-	src/qt/res/icons/add.png, src/qt/res/icons/edit.png,
-	src/qt/res/icons/remove.png (edited)
-
-Everaldo (Everaldo Coelho)
------------------------
-
-### Info
-* Icon Pack: Kids
-* Designer: Everaldo (Everaldo Coelho)
-* License: GNU/GPL 
-* Site: [http://findicons.com/icon/17102/reload?id=17102](http://findicons.com/icon/17102/reload?id=17102)
-
-### Assets Used
-	scripts/img/reload.xcf (modified), src/qt/res/movies/*.png
-
-[Vignoni David](http://techbase.kde.org/Projects/Oxygen)
------------------------
-
-### Info
-* Designer: Vignoni David
-* License: Oxygen icon theme is dual licensed. You may copy it under the Creative Common Attribution-ShareAlike 3.0 License or the GNU Library General Public License.
-* Site: [http://techbase.kde.org/Projects/Oxygen](http://techbase.kde.org/Projects/Oxygen)
-
-### Assets Used
-	src/qt/res/icons/debugwindow.png
+* Icon Pack: Typicons (http://typicons.com)
+* Designer: Stephen Hutchings (and more)
+* License: CC BY-SA
+* Site: [https://github.com/stephenhutchings/typicons.font](https://github.com/stephenhutchings/typicons.font)
+
+### Assets Used
+	src/qt/res/icons/add.png, src/qt/res/icons/address-book.png,
+	src/qt/res/icons/configure.png, src/qt/res/icons/connect4.png,
+    src/qt/res/icons/debugwindow.png, src/qt/res/icons/edit.png,
+    src/qt/res/icons/exitcopy.png, src/qt/res/icons/editpaste.png,
+    src/qt/res/icons/export.png, src/qt/res/icons/eye.png,
+    src/qt/res/icons/filesave.png, src/qt/res/icons/history.png,
+    src/qt/res/icons/info.png, src/qt/res/icons/key.png,
+    src/qt/res/icons/lock_*.png, src/qt/res/icons/open.png,
+    src/qt/res/icons/overview.png, src/qt/res/icons/quit.png,
+    src/qt/res/icons/receive.png, src/qt/res/icons/remove.png,
+    src/qt/res/icons/send.png, src/qt/res/icons/synced.png,
+    src/qt/res/icons/transaction*.png, src/qt/res/icons/tx_output.png,
 
 Jonas Schnelli
 -----------------------
 
 ### Info
-* Designer: Jonas Schnelli (based on the original bitcoin logo from Bitboy)
+* Designer: Jonas Schnelli
+* Bitcoin Icon: (based on the original bitcoin logo from Bitboy)
+* Some icons are based on Stephan Hutchings Typicons (these are under CC BY-SA license)
 * License: MIT
 
 ### Assets Used
-	src/qt/res/icons/bitcoin.icns, src/qt/res/src/bitcoin.svg,
-	src/qt/res/src/bitcoin.ico, src/qt/res/src/bitcoin.png,
-	src/qt/res/src/bitcoin_testnet.png, docs/bitcoin_logo_doxygen.png,
-	src/qt/res/images/splash.png, src/qt/res/images/splash_testnet.png
+    src/qt/res/icons/about.png, src/qt/res/icons/about_qt.png,
+    src/qt/res/icons/bitcoin.icns, src/qt/res/icons/bitcoin.ico,
+    src/qt/res/icons/bitcoin.png, src/qt/res/icons/clock*.png,
+    src/qt/res/icons/connect[0-3].png, src/qt/res/icons/eye_minus.png,
+    src/qt/res/icons/eye_plus.png, src/qt/res/icons/verify.png,
+    src/qt/res/icons/tx_inout.png, src/qt/res/icons/tx_input.png,
+    src/qt/res/src/verify.svg, src/qt/res/src/bitcoin.svg,
+    src/qt/res/src/clock*.svg, src/qt/res/src/connect*.svg,
+    src/qt/res/src/mine.svg, src/qt/res/src/qt.svg, src/qt/res/src/tx*.svg,
+    src/qt/res/src/verify.svg,
diff --git a/doc/bootstrap.md b/doc/bootstrap.md
deleted file mode 100644
index b84fd24b11..0000000000
--- a/doc/bootstrap.md
+++ /dev/null
@@ -1,56 +0,0 @@
-### Bootstrap the Blockchain Synchronization
-
-Normally the Bitcoin client will download the transaction and network information, called the blockchain, from the network by syncing with the other clients. This process can take quite some time as the [Bitcoin blockchain](https://blockchain.info/charts/blocks-size) is growing bigger and bigger for each day. Luckily there is a safe and fast way to speed up this process. We'll show you how to bootstrap your blockchain to bring your client up to speed in just a few simple steps.
-
-### Requirements
-
-- A fresh install of the Bitcoin client software.
-
-### Download the blockchain via BitTorrent
-
-Jeff Garzik, Bitcoin Core developer, offers an [torrent file](https://bitcointalk.org/index.php?topic=145386.0) for bootstrapping purposes that is updated often. BitTorrent is a protocol that speeds up the downloading of large files by using the other clients in the network. Examples of free and safe open source clients are [Deluge](http://deluge-torrent.org/) or [qBittorrent](http://www.qbittorrent.org/). A guide to installing and configuring the torrent clients can be found [here](http://dev.deluge-torrent.org/wiki/UserGuide) for Deluge and [here](http://qbforums.shiki.hu/) for qBittorrent. A further in-depth tutorial on BitTorrent can be found [here](http://www.howtogeek.com/howto/31846/bittorrent-for-beginners-how-get-started-downloading-torrents/).
-
-With the client installed we'll proceed to download the blockchain torrent file. Use the following magnet link:
-
-	magnet:?xt=urn:btih:2d4e6c1f96c5d5fb260dff92aea4e600227f1aea&dn=bootstrap.dat&tr=udp://tracker.openbittorrent.com:80&tr=udp://tracker.publicbt.com:80&tr=udp://tracker.ccc.de:80&tr=udp://tracker.istole.it:80
-	
- or go to [Jeff Garzik's topic](https://bitcointalk.org/index.php?topic=145386.0) for a signed magnet link. Alternatively you can use the [.torrent file](http://sourceforge.net/projects/bitcoin/files/Bitcoin/blockchain/bootstrap.dat.torrent/download) found on SourceForge.
-     
-![Fig1](img/bootstrap1.png)
-
-The download page should look like this, with a countdown to the download. If it does not work click the direct download link.
-
-The torrent client installed will recognize the download of the torrent file. Save the bootstrap.dat file to the folder you use for downloads. The image below shows the torrent download in qBittorrent, with current speed and ETA highlighted.
-
-![Fig2](img/bootstrap2.png)
-
-### Importing the blockchain
-Exit the Bitcoin client software if you have it running. Be sure not to have an actively used wallet in use. We are going to copy the download of the blockchain to the Bitcoin client data directory. You should run the client software at least once so it can generate the data directory. Copy the downloaded bootstrap.dat file into the Bitcoin data folder.
-
-**For Windows users:**
-Open explorer, and type into the address bar:
-
-	%APPDATA%\Bitcoin
-    
-This will open up the data folder. It should look like the image below. Copy over the bootstrap.dat from your download folder to this directory.
-![Fig4](img/bootstrap4.png)
-
-**For OSX users:**
-Open Finder by pressing Press [shift] + [cmd] + [g] and enter:
-
-	~/Library/Application Support/Bitcoin/
-    
-**For Linux users:**
-The directory is hidden in your User folder. Go to:
-
-	~/.bitcoin/
-    
-### Importing the blockchain
-Now start the Bitcoin client software. It should show "Importing blocks from disk" like the image below. 
-![Fig5](img/bootstrap5.png)
-
-Wait until the import finishes. The client will download the last days not covered by the import. Congratulations you have successfully imported the blockchain!
-
-### Is this safe?
-
-Yes, the above method is safe. The download contains only raw blockchain data and the client verifies this on import. Do not download the blockchain from unofficial sources, especially if they provide `*.rev` and `*.sst` files. These files are not verified and can contain malicious edits.
diff --git a/doc/build-osx.md b/doc/build-osx.md
index 491c5c4683..d6e93cb23d 100644
--- a/doc/build-osx.md
+++ b/doc/build-osx.md
@@ -21,12 +21,6 @@ Xcode 4.3 or later, you'll need to install its command line tools. This can
 be done in `Xcode > Preferences > Downloads > Components` and generally must
 be re-done or updated every time Xcode is updated.
 
-There's also an assumption that you already have `git` installed. If
-not, it's the path of least resistance to install [Github for Mac](https://mac.github.com/)
-(OS X 10.7+) or
-[Git for OS X](https://code.google.com/p/git-osx-installer/). It is also
-available via Homebrew.
-
 You will also need to install [Homebrew](http://brew.sh) in order to install library
 dependencies.
 
@@ -38,7 +32,9 @@ Instructions: Homebrew
 
 #### Install dependencies using Homebrew
 
-        brew install autoconf automake libtool boost miniupnpc openssl pkg-config protobuf qt gmp
+        brew install autoconf automake libtool boost miniupnpc openssl pkg-config protobuf qt5
+
+NOTE: Building with Qt4 is still supported, however, could result in a broken UI. As such, building with Qt5 is recommended.
 
 #### Installing berkeley-db4 using Homebrew
 
@@ -46,7 +42,7 @@ The homebrew package for berkeley-db4 has been broken for some time.  It will in
 
 Running this command takes you into brew's interactive mode, which allows you to configure, make, and install by hand:
 ```
-$ brew install https://raw.github.com/mxcl/homebrew/master/Library/Formula/berkeley-db4.rb -–without-java 
+$ brew install https://raw.github.com/homebrew/homebrew/master/Library/Formula/berkeley-db4.rb -–without-java 
 ```
 
 The rest of these commands are run inside brew interactive mode:
@@ -73,7 +69,7 @@ After exiting, you'll get a warning that the install is keg-only, which means it
 2.  Build bitcoind:
 
         ./autogen.sh
-        ./configure
+        ./configure --with-gui=qt5
         make
 
 3.  It is also a good idea to build and run the unit tests:
@@ -115,7 +111,7 @@ All dependencies should be compiled with these flags:
  -arch x86_64
  -isysroot $(xcode-select --print-path)/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk
 
-Once dependencies are compiled, see release-process.md for how the Bitcoin-Qt.app
+Once dependencies are compiled, see [doc/release-process.md](release-process.md) for how the Bitcoin-Qt.app
 bundle is packaged and signed to create the .dmg disk image that is distributed.
 
 Running
diff --git a/doc/build-unix.md b/doc/build-unix.md
index 9bb1a53aba..0984f689a8 100644
--- a/doc/build-unix.md
+++ b/doc/build-unix.md
@@ -33,7 +33,6 @@ These dependencies are required:
  ------------|------------------|----------------------
  libssl      | SSL Support      | Secure communications
  libboost    | Boost            | C++ Library
- libgmp      | secp256k1        | Arbitrary-precision arithmetic (version >= 3.1)
 
 Optional dependencies:
 
@@ -58,7 +57,7 @@ Dependency Build Instructions: Ubuntu & Debian
 ----------------------------------------------
 Build requirements:
 
-	sudo apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev libgmp-dev
+	sudo apt-get install build-essential libtool autotools-dev autoconf pkg-config libssl-dev
 	
 for Ubuntu 12.04 and later or Debian 7 and later libboost-all-dev has to be installed:
 
@@ -160,7 +159,7 @@ tar -xzvf db-4.8.30.NC.tar.gz
 
 # Build the library and install to our prefix
 cd db-4.8.30.NC/build_unix/
-#  Note: Do a static build so that it can be embedded into the exectuable, instead of having to find a .so at runtime
+#  Note: Do a static build so that it can be embedded into the executable, instead of having to find a .so at runtime
 ../dist/configure --enable-cxx --disable-shared --with-pic --prefix=$BDB_PREFIX
 make install
 
@@ -197,7 +196,7 @@ Hardening enables the following features:
 * Position Independent Executable
     Build position independent code to take advantage of Address Space Layout Randomization
     offered by some kernels. An attacker who is able to cause execution of code at an arbitrary
-    memory location is thwarted if he doesn't know where anything useful is located.
+    memory location is thwarted if he or she doesn't know where anything useful is located.
     The stack and heap are randomly located by default but this allows the code section to be
     randomly located as well.
 
diff --git a/doc/coding.md b/doc/developer-notes.md
index 43294dbe4c..eaeb90da1d 100644
--- a/doc/coding.md
+++ b/doc/developer-notes.md
@@ -89,6 +89,41 @@ Not OK (used plenty in the current source, but not picked up):
 A full list of comment syntaxes picked up by doxygen can be found at http://www.stack.nl/~dimitri/doxygen/manual/docblocks.html,
 but if possible use one of the above styles.
 
+Development tips and tricks
+---------------------------
+
+**compiling for debugging**
+
+Run configure with the --enable-debug option, then make. Or run configure with
+CXXFLAGS="-g -ggdb -O0" or whatever debug flags you need.
+
+**debug.log**
+
+If the code is behaving strangely, take a look in the debug.log file in the data directory;
+error and debugging messages are written there.
+
+The -debug=... command-line option controls debugging; running with just -debug will turn
+on all categories (and give you a very large debug.log file).
+
+The Qt code routes qDebug() output to debug.log under category "qt": run with -debug=qt
+to see it.
+
+**testnet and regtest modes**
+
+Run with the -testnet option to run with "play bitcoins" on the test network, if you
+are testing multi-machine code that needs to operate across the internet.
+
+If you are testing something that can run on one machine, run with the -regtest option.
+In regression test mode, blocks can be created on-demand; see qa/rpc-tests/ for tests
+that run in -regtest mode.
+
+**DEBUG_LOCKORDER**
+
+Bitcoin Core is a multithreaded application, and deadlocks or other multithreading bugs
+can be very difficult to track down. Compiling with -DDEBUG_LOCKORDER (configure
+CXXFLAGS="-DDEBUG_LOCKORDER -g") inserts run-time checks to keep track of which locks
+are held, and adds warnings to the debug.log file if inconsistencies are detected.
+
 Locking/mutex usage notes
 -------------------------
 
@@ -136,3 +171,16 @@ Threads
 - BitcoinMiner : Generates bitcoins (if wallet is enabled).
 
 - Shutdown : Does an orderly shutdown of everything.
+
+Pull Request Terminology
+------------------------
+
+Concept ACK - Agree with the idea and overall direction, but haven't reviewed the code changes or tested them.
+
+utACK (untested ACK) - Reviewed and agree with the code changes but haven't actually tested them.
+
+Tested ACK - Reviewed the code changes and have verified the functionality or bug fix.
+
+ACK -  A loose ACK can be confusing. It's best to avoid them unless it's a documentation/comment only change in which case there is nothing to test/verify; therefore the tested/untested distinction is not there.
+
+NACK - Disagree with the code changes/concept. Should be accompanied by an explanation. 
diff --git a/doc/gitian-building.md b/doc/gitian-building.md
index b356a5d88d..25d3b8390c 100644
--- a/doc/gitian-building.md
+++ b/doc/gitian-building.md
@@ -24,7 +24,7 @@ Table of Contents
 - [Connecting to the VM](#connecting-to-the-vm)
 - [Setting up Debian for gitian building](#setting-up-debian-for-gitian-building)
 - [Installing gitian](#installing-gitian)
-- [Setting up gitian images](#setting-up-gitian-images)
+- [Setting up the gitian image](#setting-up-the-gitian-image)
 - [Getting and building the inputs](#getting-and-building-the-inputs)
 - [Building Bitcoin](#building-bitcoin)
 - [Building an alternative repository](#building-an-alternative-repository)
@@ -74,16 +74,16 @@ In the VirtualBox GUI click "Create" and choose the following parameters in the
 - Disk size: at least 40GB; as low as 20GB *may* be possible, but better to err on the safe side 
 - Push the `Create` button
 
-Get the [Debian 7.4 net installer](http://ftp.at.debian.org/debian-jigdo/current/amd64/iso-cd/debian-7.4.0-amd64-netinst.iso) (a more recent minor version should also work, see also [Debian Network installation](https://www.debian.org/CD/netinst/)).
+Get the [Debian 7.7 net installer](http://cdimage.debian.org/debian-cd/7.7.0/amd64/iso-cd/debian-7.7.0-amd64-netinst.iso) (a more recent minor version should also work, see also [Debian Network installation](https://www.debian.org/CD/netinst/)).
 This DVD image can be validated using a SHA256 hashing tool, for example on
 Unixy OSes by entering the following in a terminal:
 
-    echo "b712a141bc60269db217d3b3e456179bd6b181645f90e4aac9c42ed63de492e9  debian-7.4.0-amd64-netinst.iso" | sha256sum -c
+    echo "d440e85b4121f94608748139f25dbce1ad36771348b002fe07d4d44b9d9e623f  debian-7.7.0-amd64-netinst.iso" | sha256sum -c
     # (must return OK)
 
 After creating the VM, we need to configure it. 
 
-- Click the `Settings` button, then go to the `Network` tab. Adapter 1 should be attacked to `NAT`.
+- Click the `Settings` button, then go to the `Network` tab. Adapter 1 should be attached to `NAT`.
 
 ![](gitian-building/network_settings.png)
 
@@ -109,7 +109,7 @@ Then start the VM. On the first launch you will be asked for a CD or DVD image.
 Installing Debian
 ------------------
 
-In this section it will be explained how to install Debian on the newly created VM.
+This section will explain how to install Debian on the newly created VM.
 
 - Choose the non-graphical installer.  We do not need the graphical environment, it will only increase installation time and disk usage.
 
@@ -277,54 +277,49 @@ cd ..
 
 **Note**: When sudo asks for a password, enter the password for the user *debian* not for *root*.
 
-Clone the git repositories for bitcoin and gitian and then checkout the bitcoin version that you want to build.
+Clone the git repositories for bitcoin and gitian.
 
 ```bash
 git clone https://github.com/devrandom/gitian-builder.git
 git clone https://github.com/bitcoin/bitcoin
-cd bitcoin
-git checkout v${VERSION}
-cd ..
 ```
 
-Setting up gitian images
+Setting up the gitian image
 -------------------------
 
-Gitian needs virtual images of the operating system to build in.
-Currently this is Ubuntu Precise for both x86 architectures.
-These images will be copied and used every time that a build is started to
+Gitian needs a virtual image of the operating system to build in.
+Currently this is Ubuntu Precise x86_64.
+This image will be copied and used every time that a build is started to
 make sure that the build is deterministic.
-Creating the images will take a while, but only has to be done once.
+Creating the image will take a while, but only has to be done once.
 
 Execute the following as user `debian`:
 
 ```bash
 cd gitian-builder
-bin/make-base-vm --lxc --arch i386 --suite precise
 bin/make-base-vm --lxc --arch amd64 --suite precise
 ```
 
-There will be a lot of warnings printed during build of the images. These can be ignored.
+There will be a lot of warnings printed during build of the image. These can be ignored.
 
 **Note**: When sudo asks for a password, enter the password for the user *debian* not for *root*.
 
 Getting and building the inputs
 --------------------------------
 
-In [doc/release-process.md](release-process.md) in the bitcoin repository under 'Fetch and build inputs'.
-you will find a list of `wget` commands that can be executed to get the dependencies.
+Follow the instructions in [doc/release-process.md](release-process.md) in the bitcoin repository
+under 'Fetch and build inputs' to install sources which require manual intervention. Also follow
+the next step: 'Seed the Gitian sources cache', which will fetch all necessary source files allowing
+for gitian to work offline.
 
-I needed to add `--no-check-certificate` to the OpenSSL wget line to make it work.
-Likely this is because the ca-certificates in Debian 7.4 is fairly old. This does not create a 
-security issue as the gitian descriptors check the integrity of the input archives and refuse to work
-if any one is corrupted.
+Building Bitcoin
+----------------
 
-After downloading the archives, execute the `gbuild` commands to build the dependencies.
-This can take a long time, but only has to be done when the dependencies change, for example
-to upgrade the used version.
+To build Bitcoin (for Linux, OSX and Windows) just follow the steps under 'perform
+gitian builds' in [doc/release-process.md](release-process.md) in the bitcoin repository.
 
-**Note**: Do not forget to copy the result from `build/out` to `inputs` after every gbuild command! This will save
-you a lot of time.
+This may take a long time as it also builds the dependencies needed for each descriptor.
+These dependencies will be cached after a successful build to avoid rebuilding them where possible.
 
 At any time you can check the package installation and build progress with
 
@@ -333,12 +328,6 @@ tail -f var/install.log
 tail -f var/build.log
 ```
 
-Building Bitcoin
-----------------
-
-To build Bitcoin (for Linux, OSX and Windows) just follow the steps under 'perform
-gitian builds' in [doc/release-process.md](release-process.md) in the bitcoin repository.
-
 Output from `gbuild` will look something like
 
     Initialized empty Git repository in /home/debian/gitian-builder/inputs/bitcoin/.git/
@@ -348,7 +337,7 @@ Output from `gbuild` will look something like
     Resolving deltas: 100% (25724/25724), done.
     From https://github.com/bitcoin/bitcoin
     ... (new tags, new branch etc)
-    --- Building for precise i386 ---
+    --- Building for precise x86_64 ---
     Stopping target if it is up
     Making a new image copy
     stdin: is not a tty
@@ -363,9 +352,6 @@ Output from `gbuild` will look something like
     lxc-start: Connection refused - inotify event with no name (mask 32768)
     Running build script (log in var/build.log)
 
-As when building the dependencies, the progress of package installation and building
-can be inspected in `var/install.log` and `var/build.log`.
-
 Building an alternative repository
 -----------------------------------
 
@@ -394,9 +380,9 @@ When you execute `gsign` you will get an error from GPG, which can be ignored. C
 in `gitian.sigs` to your signing machine and do
 
 ```bash
-    gpg --detach-sign ${VERSION}-linux/${SIGNER}/bitcoin-build.assert
-    gpg --detach-sign ${VERSION}-win/${SIGNER}/bitcoin-build.assert
-    gpg --detach-sign ${VERSION}-osx/${SIGNER}/bitcoin-build.assert
+    gpg --detach-sign ${VERSION}-linux/${SIGNER}/bitcoin-linux-build.assert
+    gpg --detach-sign ${VERSION}-win/${SIGNER}/bitcoin-win-build.assert
+    gpg --detach-sign ${VERSION}-osx-unsigned/${SIGNER}/bitcoin-osx-build.assert
 ```
 
 This will create the `.sig` files that can be committed together with the `.assert` files to assert your
diff --git a/doc/release-notes.md b/doc/release-notes.md
index f804e8c11b..1cb517e5c7 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -1,126 +1,3 @@
 (note: this is a temporary file, to be added-to by anybody, and moved to
 release-notes at release time)
 
-Block file backwards-compatibility warning
-===========================================
-
-Because release 0.10.0 makes use of headers-first synchronization and parallel
-block download, the block files and databases are not backwards-compatible
-with older versions of Bitcoin Core:
-
-* Blocks will be stored on disk out of order (in the order they are
-received, really), which makes it incompatible with some tools or
-other programs. Reindexing using earlier versions will also not work
-anymore as a result of this.
-
-* The block index database will now hold headers for which no block is
-stored on disk, which earlier versions won't support.
-
-If you want to be able to downgrade smoothly, make a backup of your entire data
-directory. Without this your node will need start syncing (or importing from
-bootstrap.dat) anew afterwards.
-
-This does not affect wallet forward or backward compatibility.
-
-Transaction fee changes
-=======================
-
-This release automatically estimates how high a transaction fee (or how
-high a priority) transactions require to be confirmed quickly. The default
-settings will create transactions that confirm quickly; see the new
-'txconfirmtarget' setting to control the tradeoff between fees and
-confirmation times.
-
-Prior releases used hard-coded fees (and priorities), and would
-sometimes create transactions that took a very long time to confirm.
-
-Statistics used to estimate fees and priorities are saved in the
-data directory in the `fee_estimates.dat` file just before
-program shutdown, and are read in at startup.
-
-New Command Line Options
----------------------------
-
-- `-txconfirmtarget=n` : create transactions that have enough fees (or priority)
-so they are likely to confirm within n blocks (default: 1). This setting
-is over-ridden by the -paytxfee option.
-
-New RPC methods
-----------------
-
-- `estimatefee nblocks` : Returns approximate fee-per-1,000-bytes needed for
-a transaction to be confirmed within nblocks. Returns -1 if not enough
-transactions have been observed to compute a good estimate.
-
-- `estimatepriority nblocks` : Returns approximate priority needed for
-a zero-fee transaction to confirm within nblocks. Returns -1 if not
-enough free transactions have been observed to compute a good
-estimate.
-
-RPC access control changes
-==========================================
-
-Subnet matching for the purpose of access control is now done
-by matching the binary network address, instead of with string wildcard matching.
-For the user this means that `-rpcallowip` takes a subnet specification, which can be
-
-- a single IP address (e.g. `1.2.3.4` or `fe80::0012:3456:789a:bcde`)
-- a network/CIDR (e.g. `1.2.3.0/24` or `fe80::0000/64`)
-- a network/netmask (e.g. `1.2.3.4/255.255.255.0` or `fe80::0012:3456:789a:bcde/ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff`)
-
-An arbitrary number of `-rpcallow` arguments can be given. An incoming connection will be accepted if its origin address
-matches one of them.
-
-For example:
-
-| 0.9.x and before                           | 0.10.x                                |
-|--------------------------------------------|---------------------------------------|
-| `-rpcallowip=192.168.1.1`                  | `-rpcallowip=192.168.1.1` (unchanged) |
-| `-rpcallowip=192.168.1.*`                  | `-rpcallowip=192.168.1.0/24`          |
-| `-rpcallowip=192.168.*`                    | `-rpcallowip=192.168.0.0/16`          |
-| `-rpcallowip=*` (dangerous!)               | `-rpcallowip=::/0`                    |
-
-Using wildcards will result in the rule being rejected with the following error in debug.log:
-
-    Error: Invalid -rpcallowip subnet specification: *. Valid are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24).
-
-RPC Server "Warm-Up" Mode
-=========================
-
-The RPC server is started earlier now, before most of the expensive
-intialisations like loading the block index.  It is available now almost
-immediately after starting the process.  However, until all initialisations
-are done, it always returns an immediate error with code -28 to all calls.
-
-This new behaviour can be useful for clients to know that a server is already
-started and will be available soon (for instance, so that they do not
-have to start it themselves).
-
-Improved signing security
-=========================
-
-For 0.10 the security of signing against unusual attacks has been
-improved by making the signatures constant time and deterministic.
-
-This change is a result of switching signing to use libsecp256k1
-instead of OpenSSL. Libsecp256k1 is a cryptographic library
-optimized for the curve Bitcoin uses which was created by Bitcoin
-Core developer Pieter Wuille.
-
-There exist attacks[1] against most ECC implementations where an
-attacker on shared virtual machine hardware could extract a private
-key if they could cause a target to sign using the same key hundreds
-of times. While using shared hosts and reusing keys are inadvisable
-for other reasons, it's a better practice to avoid the exposure.
-
-OpenSSL has code in their source repository for derandomization
-and reduction in timing leaks, and we've  eagerly wanted to use
-it for a long time but this functionality has still not made its
-way into a released version of OpenSSL. Libsecp256k1 achieves
-significantly stronger protection: As far as we're aware this is
-the only deployed implementation of constant time signing for
-the curve Bitcoin uses and we have reason to believe that
-libsecp256k1 is better tested and more thoroughly reviewed
-than the implementation in OpenSSL.
-
-[1] https://eprint.iacr.org/2014/161.pdf
diff --git a/doc/release-process.md b/doc/release-process.md
index a16d4ace4a..363465d827 100644
--- a/doc/release-process.md
+++ b/doc/release-process.md
@@ -40,17 +40,25 @@ Release Process
 
 ###fetch and build inputs: (first time, or when dependency versions change)
  
-	mkdir -p inputs; cd inputs/
+	mkdir -p inputs
 
  Register and download the Apple SDK: (see OSX Readme for details)
  
- https://developer.apple.com/downloads/download.action?path=Developer_Tools/xcode_4.6.3/xcode4630916281a.dmg
+ https://developer.apple.com/downloads/download.action?path=Developer_Tools/xcode_6.1.1/xcode_6.1.1.dmg
  
- Using a Mac, create a tarball for the 10.7 SDK and copy it to the inputs directory:
+ Using a Mac, create a tarball for the 10.9 SDK and copy it to the inputs directory:
  
-	tar -C /Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/ -czf MacOSX10.7.sdk.tar.gz MacOSX10.7.sdk
+	tar -C /Volumes/Xcode/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/ -czf MacOSX10.9.sdk.tar.gz MacOSX10.9.sdk
 
- Build Bitcoin Core for Linux, Windows, and OS X:
+###Optional: Seed the Gitian sources cache
+
+  By default, gitian will fetch source files as needed. For offline builds, they can be fetched ahead of time:
+
+	make -C ../bitcoin/depends download SOURCES_PATH=`pwd`/cache/common
+
+  Only missing files will be fetched, so this is safe to re-run for each build.
+
+###Build Bitcoin Core for Linux, Windows, and OS X:
   
 	./bin/gbuild --commit bitcoin=v${VERSION} ../bitcoin/contrib/gitian-descriptors/gitian-linux.yml
 	./bin/gsign --signer $SIGNER --release ${VERSION}-linux --destination ../gitian.sigs/ ../bitcoin/contrib/gitian-descriptors/gitian-linux.yml
@@ -60,10 +68,9 @@ Release Process
 	mv build/out/bitcoin-*.zip build/out/bitcoin-*.exe ../
 	./bin/gbuild --commit bitcoin=v${VERSION} ../bitcoin/contrib/gitian-descriptors/gitian-osx.yml
 	./bin/gsign --signer $SIGNER --release ${VERSION}-osx-unsigned --destination ../gitian.sigs/ ../bitcoin/contrib/gitian-descriptors/gitian-osx.yml
-	mv build/out/bitcoin-*-unsigned.tar.gz inputs
+	mv build/out/bitcoin-*-unsigned.tar.gz inputs/bitcoin-osx-unsigned.tar.gz
 	mv build/out/bitcoin-*.tar.gz build/out/bitcoin-*.dmg ../
 	popd
-bitcoin-0.9.99-osx-unsigned.tar.gz
   Build output expected:
 
   1. source tarball (bitcoin-${VERSION}.tar.gz)
@@ -84,17 +91,18 @@ Commit your signature to gitian.sigs:
 	git push  # Assuming you can push to the gitian.sigs tree
 	popd
 
-Wait for OSX detached signature:
+  Wait for OSX detached signature:
 	Once the OSX build has 3 matching signatures, Gavin will sign it with the apple App-Store key.
 	He will then upload a detached signature to be combined with the unsigned app to create a signed binary.
 
-Create the signed OSX binary:
+  Create the signed OSX binary:
+
 	pushd ./gitian-builder
 	# Fetch the signature as instructed by Gavin
 	cp signature.tar.gz inputs/
 	./bin/gbuild -i ../bitcoin/contrib/gitian-descriptors/gitian-osx-signer.yml
 	./bin/gsign --signer $SIGNER --release ${VERSION}-osx-signed --destination ../gitian.sigs/ ../bitcoin/contrib/gitian-descriptors/gitian-osx-signer.yml
-	mv build/out/bitcoin-${VERSION}-osx.dmg ../
+	mv build/out/bitcoin-osx-signed.dmg ../bitcoin-${VERSION}-osx.dmg
 	popd
 
 Commit your signature for the signed OSX binary:
diff --git a/doc/translation_process.md b/doc/translation_process.md
index 9475b1dc72..eed467706e 100644
--- a/doc/translation_process.md
+++ b/doc/translation_process.md
@@ -1,89 +1,111 @@
 Translations
 ============
 
-The Bitcoin Core GUI can be easily translated into other languages. Here's how we
-handle those translations.
+The Bitcoin-Core project has been designed to support multiple localisations. This makes adding new phrases, and completely new languages easily achievable. For managing all application translations, Bitcoin-Core makes use of the Transifex online translation management tool. 
 
-Files and Folders
------------------
+### Helping to translate (using Transifex)
+Transifex is setup to monitor the Github repo for updates, and when code containing new translations is found, Transifex will process any changes. It may take several hours after a pull-request has been merged, to appear in the Transifex web interface.
 
-### bitcoin-qt.pro
+Multiple language support is critical in assisting Bitcoin’s global adoption, and growth. One of Bitcoin’s greatest strengths is cross-boarder money transfers, any help making that easier is greatly appreciated.
 
-This file takes care of generating `.qm` files from `.ts` files. It is mostly
-automated.
+See the [Transifex Bitcoin project](https://www.transifex.com/projects/p/bitcoin/) to assist in translations. You should also join the translation mailing list for announcements - see details below.
 
-### src/qt/bitcoin.qrc
+### Writing code with translations
+We use automated scripts to help extract translations in both Qt, and non-Qt source files. It is rarely necessary to manually edit the files in `src/qt/locale/`. The translation source files must adhere to the following format:
+`bitcoin_xx_YY.ts or bitcoin_xx.ts`
 
-This file must be updated whenever a new translation is added. Please note that
-files must end with `.qm`, not `.ts`.
+`src/qt/locale/bitcoin_en.ts` is treated in a special way. It is used as the source for all other translations. Whenever a string in the source code is changed, this file must be updated to reflect those changes. A custom script is used to extract strings from the non-Qt parts. This script makes use of `gettext`, so make sure that utility is installed (ie, `apt-get install gettext` on Ubuntu/Debian). Once this has been updated, `lupdate` (included in the Qt SDK) is used to update `bitcoin_en.ts`.
 
-```xml
-<qresource prefix="/translations">
-    <file alias="en">locale/bitcoin_en.qm</file>
-    ...
-</qresource>
+To automatically regenerate the `bitcoin_en.ts` file, run the following commands:
+```sh
+cd src/
+make translate
 ```
 
-### src/qt/locale/
+`contrib/bitcoin-qt.pro` takes care of generating `.qm` (binary compiled) files from `.ts` (source files) files. It’s mostly automated, and you shouldn’t need to worry about it.
 
-This directory contains all translations. Filenames must adhere to this format:
+**Example Qt translation**
+```cpp
+QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
+```
 
-    bitcoin_xx_YY.ts or bitcoin_xx.ts
+### Creating a pull-request
+For general PRs, you shouldn’t include any updates to the translation source files. They will be updated periodically, primarily around pre-releases, allowing time for any new phrases to be translated before public releases. This is also important in avoiding translation related merge conflicts.
 
-#### bitcoin_en.ts (Source file)
+When an updated source file is merged into the Github repo,  Transifex will automatically detect it (although it can take several hours). Once processed, the new strings will show up as "Remaining" in the Transifex web interface and are ready for translators.
 
-`src/qt/locale/bitcoin_en.ts` is treated in a special way. It is used as the
-source for all other translations. Whenever a string in the code is changed
-this file must be updated to reflect those changes. A  custom script is used
-to extract strings from the non-Qt parts. This script makes use of `gettext`,
-so make sure that utility is installed (ie, `apt-get install gettext` on 
-Ubuntu/Debian). Once this has been updated, lupdate (included in the Qt SDK)
-is used to update bitcoin_en.ts. This process has been automated, from src/qt,
-simply run:
-    make translate
-    
-##### Handling of plurals in the source file
+To create the pull-request, use the following commands:
+```
+git add src/qt/bitcoinstrings.cpp src/qt/locale/bitcoin_en.ts
+git commit
+```
 
-When new plurals are added to the source file, it's important to do the following steps:
+### Creating a Transifex account
+Visit the [Transifex Signup](https://www.transifex.com/signup/) page to create an account. Take note of your username and password, as they will be required to configure the command-line tool.
 
-1. Open bitcoin_en.ts in Qt Linguist (also included in the Qt SDK)
-2. Search for `%n`, which will take you to the parts in the translation that use plurals
-3. Look for empty `English Translation (Singular)` and `English Translation (Plural)` fields
-4. Add the appropriate strings for the singular and plural form of the base string
-5. Mark the item as done (via the green arrow symbol in the toolbar)
-6. Repeat from step 2. until all singular and plural forms are in the source file
-7. Save the source file
+You can find the Bitcoin translation project at [https://www.transifex.com/projects/p/bitcoin/](https://www.transifex.com/projects/p/bitcoin/).
 
-##### Creating the pull-request
+### Installing the Transifex client command-line tool
+The client it used to fetch updated translations. If you are having problems, or need more details, see [http://docs.transifex.com/developer/client/setup](http://docs.transifex.com/developer/client/setup)
 
-An updated source file should be merged to github and Transifex will pick it
-up from there (can take some hours). Afterwards the new strings show up as "Remaining"
-in Transifex and can be translated.
+**For Linux and Mac**
 
-To create the pull-request you have to do:
+`pip install transifex-client`
 
-    git add src/qt/bitcoinstrings.cpp src/qt/locale/bitcoin_en.ts
-    git commit
+Setup your transifex client config as follows. Please *ignore the token field*.
 
-Syncing with Transifex
-----------------------
+```ini
+nano ~/.transifexrc
 
-We are using https://transifex.com as a frontend for translating the client.
+[https://www.transifex.com]
+hostname = https://www.transifex.com
+password = PASSWORD
+token =
+username = USERNAME
+```
 
-https://www.transifex.com/projects/p/bitcoin/resource/tx/
+**For Windows**
 
-The "Transifex client" (see: http://support.transifex.com/customer/portal/topics/440187-transifex-client/articles)
-is used to fetch new translations from Transifex. The configuration for this client (`.tx/config`)
-is part of the repository.
+Please see [http://docs.transifex.com/developer/client/setup#windows](http://docs.transifex.com/developer/client/setup#windows) for details on installation.
 
-Do not directly download translations one by one from the Transifex website, as we do a few
-postprocessing steps before committing the translations.
+The Transifex Bitcoin project config file is included as part of the repo. It can be found at `.tx/config`, however you shouldn’t need change anything.
 
-### Fetching new translations
+### Synchronising translations
+To assist in updating translations, we have created a script to help.
 
 1. `python contrib/devtools/update-translations.py`
-2. update `src/qt/bitcoin.qrc` manually or via
+2. Update `src/qt/bitcoin.qrc` manually or via
    `ls src/qt/locale/*ts|xargs -n1 basename|sed 's/\(bitcoin_\(.*\)\).ts/<file alias="\2">locale\/\1.qm<\/file>/'`
-3. update `src/qt/Makefile.am` manually or via
+3. Update `src/qt/Makefile.am` manually or via
    `ls src/qt/locale/*ts|xargs -n1 basename|sed 's/\(bitcoin_\(.*\)\).ts/  locale\/\1.ts \\/'`
 4. `git add` new translations from `src/qt/locale/`
+
+**Do not directly download translations** one by one from the Transifex website, as we do a few post-processing steps before committing the translations.
+
+### Handling Plurals (in source files)
+When new plurals are added to the source file, it's important to do the following steps:
+
+1. Open `bitcoin_en.ts` in Qt Linguist (included in the Qt SDK)
+2. Search for `%n`, which will take you to the parts in the translation that use plurals
+3. Look for empty `English Translation (Singular)` and `English Translation (Plural)` fields
+4. Add the appropriate strings for the singular and plural form of the base string
+5. Mark the item as done (via the green arrow symbol in the toolbar)
+6. Repeat from step 2, until all singular and plural forms are in the source file
+7. Save the source file
+
+### Translating a new language
+To create a new language template, you will need to edit the languages manifest file `src/qt/bitcoin.qrc` and add a new entry. Below is an example of the english language entry.
+
+```xml
+<qresource prefix="/translations">
+    <file alias="en">locale/bitcoin_en.qm</file>
+    ...
+</qresource>
+```
+
+**Note:** that the language translation file **must end in `.qm`** (the compiled extension), and not `.ts`.
+
+### Questions and general assistance
+The Bitcoin-Core translation maintainers include *tcatm, seone, Diapolo, wumpus and luke-jr*.You can find them, and others, in the Freenode IRC chatroom - `irc.freenode.net #bitcoin-dev`.
+
+If you are a translator, you should also subscribe to the mailing list, https://groups.google.com/forum/#!forum/bitcoin-translators. Announcements will be posted during application pre-releases to notify translators to check for updates.
+\ No newline at end of file
diff --git a/libbitcoinconsensus.pc.in b/libbitcoinconsensus.pc.in
new file mode 100644
index 0000000000..3ca1696a31
--- /dev/null
+++ b/libbitcoinconsensus.pc.in
@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: Bitcoin Core consensus library
+Description: Library for the Bitcoin consensus protocol.
+Version: @PACKAGE_VERSION@
+Libs: -L${libdir} -lbitcoinconsensus
+Cflags: -I${includedir}
+Requires.private: libcrypto
diff --git a/pkg.m4 b/pkg.m4
deleted file mode 100644
index c5b26b52e6..0000000000
--- a/pkg.m4
+++ /dev/null
@@ -1,214 +0,0 @@
-# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
-# serial 1 (pkg-config-0.24)
-# 
-# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-# General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-#
-# As a special exception to the GNU General Public License, if you
-# distribute this file as part of a program that contains a
-# configuration script generated by Autoconf, you may include it under
-# the same distribution terms that you use for the rest of that program.
-
-# PKG_PROG_PKG_CONFIG([MIN-VERSION])
-# ----------------------------------
-AC_DEFUN([PKG_PROG_PKG_CONFIG],
-[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
-m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
-m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
-AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
-AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
-AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
-
-if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
-	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
-fi
-if test -n "$PKG_CONFIG"; then
-	_pkg_min_version=m4_default([$1], [0.9.0])
-	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
-	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
-		AC_MSG_RESULT([yes])
-	else
-		AC_MSG_RESULT([no])
-		PKG_CONFIG=""
-	fi
-fi[]dnl
-])# PKG_PROG_PKG_CONFIG
-
-# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-#
-# Check to see whether a particular set of modules exists.  Similar
-# to PKG_CHECK_MODULES(), but does not set variables or print errors.
-#
-# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-# only at the first occurence in configure.ac, so if the first place
-# it's called might be skipped (such as if it is within an "if", you
-# have to call PKG_CHECK_EXISTS manually
-# --------------------------------------------------------------
-AC_DEFUN([PKG_CHECK_EXISTS],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-if test -n "$PKG_CONFIG" && \
-    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
-  m4_default([$2], [:])
-m4_ifvaln([$3], [else
-  $3])dnl
-fi])
-
-# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
-# ---------------------------------------------
-m4_define([_PKG_CONFIG],
-[if test -n "$$1"; then
-    pkg_cv_[]$1="$$1"
- elif test -n "$PKG_CONFIG"; then
-    PKG_CHECK_EXISTS([$3],
-                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
-		      test "x$?" != "x0" && pkg_failed=yes ],
-		     [pkg_failed=yes])
- else
-    pkg_failed=untried
-fi[]dnl
-])# _PKG_CONFIG
-
-# _PKG_SHORT_ERRORS_SUPPORTED
-# -----------------------------
-AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
-if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
-        _pkg_short_errors_supported=yes
-else
-        _pkg_short_errors_supported=no
-fi[]dnl
-])# _PKG_SHORT_ERRORS_SUPPORTED
-
-
-# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
-# [ACTION-IF-NOT-FOUND])
-#
-#
-# Note that if there is a possibility the first call to
-# PKG_CHECK_MODULES might not happen, you should be sure to include an
-# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
-#
-#
-# --------------------------------------------------------------
-AC_DEFUN([PKG_CHECK_MODULES],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
-AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
-
-pkg_failed=no
-AC_MSG_CHECKING([for $1])
-
-_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
-_PKG_CONFIG([$1][_LIBS], [libs], [$2])
-
-m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
-and $1[]_LIBS to avoid the need to call pkg-config.
-See the pkg-config man page for more details.])
-
-if test $pkg_failed = yes; then
-   	AC_MSG_RESULT([no])
-        _PKG_SHORT_ERRORS_SUPPORTED
-        if test $_pkg_short_errors_supported = yes; then
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
-        else 
-	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
-        fi
-	# Put the nasty error message in config.log where it belongs
-	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
-
-	m4_default([$4], [AC_MSG_ERROR(
-[Package requirements ($2) were not met:
-
-$$1_PKG_ERRORS
-
-Consider adjusting the PKG_CONFIG_PATH environment variable if you
-installed software in a non-standard prefix.
-
-_PKG_TEXT])[]dnl
-        ])
-elif test $pkg_failed = untried; then
-     	AC_MSG_RESULT([no])
-	m4_default([$4], [AC_MSG_FAILURE(
-[The pkg-config script could not be found or is too old.  Make sure it
-is in your PATH or set the PKG_CONFIG environment variable to the full
-path to pkg-config.
-
-_PKG_TEXT
-
-To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
-        ])
-else
-	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
-	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
-        AC_MSG_RESULT([yes])
-	$3
-fi[]dnl
-])# PKG_CHECK_MODULES
-
-
-# PKG_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable pkgconfigdir as the location where a module
-# should install pkg-config .pc files. By default the directory is
-# $libdir/pkgconfig, but the default can be changed by passing
-# DIRECTORY. The user can override through the --with-pkgconfigdir
-# parameter.
-AC_DEFUN([PKG_INSTALLDIR],
-[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
-m4_pushdef([pkg_description],
-    [pkg-config installation directory @<:@]pkg_default[@:>@])
-AC_ARG_WITH([pkgconfigdir],
-    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
-    [with_pkgconfigdir=]pkg_default)
-AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
-m4_popdef([pkg_default])
-m4_popdef([pkg_description])
-]) dnl PKG_INSTALLDIR
-
-
-# PKG_NOARCH_INSTALLDIR(DIRECTORY)
-# -------------------------
-# Substitutes the variable noarch_pkgconfigdir as the location where a
-# module should install arch-independent pkg-config .pc files. By
-# default the directory is $datadir/pkgconfig, but the default can be
-# changed by passing DIRECTORY. The user can override through the
-# --with-noarch-pkgconfigdir parameter.
-AC_DEFUN([PKG_NOARCH_INSTALLDIR],
-[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
-m4_pushdef([pkg_description],
-    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
-AC_ARG_WITH([noarch-pkgconfigdir],
-    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
-    [with_noarch_pkgconfigdir=]pkg_default)
-AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
-m4_popdef([pkg_default])
-m4_popdef([pkg_description])
-]) dnl PKG_NOARCH_INSTALLDIR
-
-
-# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
-# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
-# -------------------------------------------
-# Retrieves the value of the pkg-config variable for the given module.
-AC_DEFUN([PKG_CHECK_VAR],
-[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
-AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
-
-_PKG_CONFIG([$1], [variable="][$3]["], [$2])
-AS_VAR_COPY([$1], [pkg_cv_][$1])
-
-AS_VAR_IF([$1], [""], [$5], [$4])dnl
-])# PKG_CHECK_VAR
diff --git a/qa/pull-tester/rpc-tests.sh b/qa/pull-tester/rpc-tests.sh
index a93b80686b..efeee45530 100755
--- a/qa/pull-tester/rpc-tests.sh
+++ b/qa/pull-tester/rpc-tests.sh
@@ -15,16 +15,29 @@ fi
 
 #Run the tests
 
+testScripts=(
+    'wallet.py'
+    'listtransactions.py'
+    'mempool_resurrect_test.py'
+    'txn_doublespend.py'
+    'txn_doublespend.py --mineblock'
+    'getchaintips.py'
+    'rest.py'
+    'mempool_spendcoinbase.py'
+    'mempool_coinbase_spends.py'
+    'httpbasics.py'
+    'zapwallettxes.py'
+#    'forknotify.py'
+);
 if [ "x${ENABLE_BITCOIND}${ENABLE_UTILS}${ENABLE_WALLET}" = "x111" ]; then
-  ${BUILDDIR}/qa/rpc-tests/wallet.py --srcdir "${BUILDDIR}/src"
-  ${BUILDDIR}/qa/rpc-tests/listtransactions.py --srcdir "${BUILDDIR}/src"
-  ${BUILDDIR}/qa/rpc-tests/mempool_resurrect_test.py --srcdir "${BUILDDIR}/src"
-  ${BUILDDIR}/qa/rpc-tests/txn_doublespend.py --srcdir "${BUILDDIR}/src"
-  ${BUILDDIR}/qa/rpc-tests/txn_doublespend.py --mineblock --srcdir "${BUILDDIR}/src"
-  ${BUILDDIR}/qa/rpc-tests/getchaintips.py --srcdir "${BUILDDIR}/src"
-  ${BUILDDIR}/qa/rpc-tests/rest.py --srcdir "${BUILDDIR}/src"
-  ${BUILDDIR}/qa/rpc-tests/mempool_spendcoinbase.py --srcdir "${BUILDDIR}/src"
-  #${BUILDDIR}/qa/rpc-tests/forknotify.py --srcdir "${BUILDDIR}/src"
+    for (( i = 0; i < ${#testScripts[@]}; i++ ))
+    do
+        if [ -z "$1" ] || [ "$1" == "${testScripts[$i]}" ] || [ "$1.py" == "${testScripts[$i]}" ]
+        then
+            echo -e "Running testscript \033[1m${testScripts[$i]}...\033[0m"
+            ${BUILDDIR}/qa/rpc-tests/${testScripts[$i]} --srcdir "${BUILDDIR}/src"
+        fi
+    done
 else
   echo "No rpc tests to run. Wallet, utils, and bitcoind must all be enabled"
 fi
diff --git a/qa/pull-tester/run-bitcoind-for-test.sh.in b/qa/pull-tester/run-bitcoind-for-test.sh.in
index 42d8ad52e8..14ae08e4e5 100755
--- a/qa/pull-tester/run-bitcoind-for-test.sh.in
+++ b/qa/pull-tester/run-bitcoind-for-test.sh.in
@@ -10,7 +10,7 @@ touch "$DATADIR/regtest/debug.log"
 tail -q -n 1 -F "$DATADIR/regtest/debug.log" | grep -m 1 -q "Done loading" &
 WAITER=$!
 PORT=`expr 10000 + $$ % 55536`
-"@abs_top_builddir@/src/bitcoind@EXEEXT@" -connect=0.0.0.0 -datadir="$DATADIR" -rpcuser=user -rpcpassword=pass -listen -keypool=3 -debug -debug=net -logtimestamps -checkmempool=0 -port=$PORT -whitelist=127.0.0.1 -regtest -rpcport=`expr $PORT + 1` &
+"@abs_top_builddir@/src/bitcoind@EXEEXT@" -connect=0.0.0.0 -datadir="$DATADIR" -rpcuser=user -rpcpassword=pass -listen -keypool=3 -debug -debug=net -logtimestamps -checkmempool=0 -relaypriority=0 -port=$PORT -whitelist=127.0.0.1 -regtest -rpcport=`expr $PORT + 1` &
 BITCOIND=$!
 
 #Install a watchdog.
diff --git a/qa/rpc-tests/README.md b/qa/rpc-tests/README.md
index 3e916a7688..02170d13ec 100644
--- a/qa/rpc-tests/README.md
+++ b/qa/rpc-tests/README.md
@@ -12,7 +12,7 @@ Base class for new regression tests.
 ### [listtransactions.py](listtransactions.py)
 Tests for the listtransactions RPC call.
 
-### [util.py](util.sh)
+### [util.py](util.py)
 Generally useful functions.
 
 Bash-based tests, to be ported to Python:
diff --git a/qa/rpc-tests/bipdersig.py b/qa/rpc-tests/bipdersig.py
new file mode 100755
index 0000000000..9f2cc84601
--- /dev/null
+++ b/qa/rpc-tests/bipdersig.py
@@ -0,0 +1,90 @@
+#!/usr/bin/env python2
+# Copyright (c) 2014 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#
+# Test the BIP66 changeover logic
+#
+
+from test_framework import BitcoinTestFramework
+from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException
+from util import *
+import os
+import shutil
+
+class BIP66Test(BitcoinTestFramework):
+
+    def setup_network(self):
+        self.nodes = []
+        self.nodes.append(start_node(0, self.options.tmpdir, []))
+        self.nodes.append(start_node(1, self.options.tmpdir, ["-blockversion=2"]))
+        self.nodes.append(start_node(2, self.options.tmpdir, ["-blockversion=3"]))
+        connect_nodes(self.nodes[1], 0)
+        connect_nodes(self.nodes[2], 0)
+        self.is_network_split = False
+        self.sync_all()
+
+    def run_test(self):
+        cnt = self.nodes[0].getblockcount()
+
+        # Mine some old-version blocks
+        self.nodes[1].setgenerate(True, 100)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 100):
+            raise AssertionError("Failed to mine 100 version=2 blocks")
+
+        # Mine 750 new-version blocks
+        for i in xrange(15):
+            self.nodes[2].setgenerate(True, 50)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 850):
+            raise AssertionError("Failed to mine 750 version=3 blocks")
+
+        # TODO: check that new DERSIG rules are not enforced
+
+        # Mine 1 new-version block
+        self.nodes[2].setgenerate(True, 1)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 851):
+            raise AssertionFailure("Failed to mine a version=3 blocks")
+
+        # TODO: check that new DERSIG rules are enforced
+
+        # Mine 198 new-version blocks
+        for i in xrange(2):
+            self.nodes[2].setgenerate(True, 99)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 1049):
+            raise AssertionError("Failed to mine 198 version=3 blocks")
+
+        # Mine 1 old-version block
+        self.nodes[1].setgenerate(True, 1)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 1050):
+            raise AssertionError("Failed to mine a version=2 block after 949 version=3 blocks")
+
+        # Mine 1 new-version blocks
+        self.nodes[2].setgenerate(True, 1)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 1051):
+            raise AssertionError("Failed to mine a version=3 block")
+
+        # Mine 1 old-version blocks
+        try:
+            self.nodes[1].setgenerate(True, 1)
+            raise AssertionError("Succeeded to mine a version=2 block after 950 version=3 blocks")
+        except JSONRPCException:
+            pass
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 1051):
+            raise AssertionError("Accepted a version=2 block after 950 version=3 blocks")
+
+        # Mine 1 new-version blocks
+        self.nodes[2].setgenerate(True, 1)
+        self.sync_all()
+        if (self.nodes[0].getblockcount() != cnt + 1052):
+            raise AssertionError("Failed to mine a version=3 block")
+
+if __name__ == '__main__':
+    BIP66Test().main()
diff --git a/qa/rpc-tests/httpbasics.py b/qa/rpc-tests/httpbasics.py
new file mode 100755
index 0000000000..24533741e5
--- /dev/null
+++ b/qa/rpc-tests/httpbasics.py
@@ -0,0 +1,102 @@
+#!/usr/bin/env python2
+# Copyright (c) 2014 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#
+# Test REST interface
+#
+
+from test_framework import BitcoinTestFramework
+from util import *
+import base64
+
+try:
+    import http.client as httplib
+except ImportError:
+    import httplib
+try:
+    import urllib.parse as urlparse
+except ImportError:
+    import urlparse
+
+class HTTPBasicsTest (BitcoinTestFramework):        
+    def setup_nodes(self):
+        return start_nodes(4, self.options.tmpdir, extra_args=[['-rpckeepalive=1'], ['-rpckeepalive=0'], [], []])
+
+    def run_test(self):        
+        
+        #################################################
+        # lowlevel check for http persistent connection #
+        #################################################
+        url = urlparse.urlparse(self.nodes[0].url)
+        authpair = url.username + ':' + url.password
+        headers = {"Authorization": "Basic " + base64.b64encode(authpair)}
+        
+        conn = httplib.HTTPConnection(url.hostname, url.port)
+        conn.connect()
+        conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
+        out1 = conn.getresponse().read();
+        assert_equal('"error":null' in out1, True)
+        assert_equal(conn.sock!=None, True) #according to http/1.1 connection must still be open!
+        
+        #send 2nd request without closing connection
+        conn.request('POST', '/', '{"method": "getchaintips"}', headers)
+        out2 = conn.getresponse().read();
+        assert_equal('"error":null' in out1, True) #must also response with a correct json-rpc message
+        assert_equal(conn.sock!=None, True) #according to http/1.1 connection must still be open!
+        conn.close()
+        
+        #same should be if we add keep-alive because this should be the std. behaviour
+        headers = {"Authorization": "Basic " + base64.b64encode(authpair), "Connection": "keep-alive"}
+        
+        conn = httplib.HTTPConnection(url.hostname, url.port)
+        conn.connect()
+        conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
+        out1 = conn.getresponse().read();
+        assert_equal('"error":null' in out1, True)
+        assert_equal(conn.sock!=None, True) #according to http/1.1 connection must still be open!
+        
+        #send 2nd request without closing connection
+        conn.request('POST', '/', '{"method": "getchaintips"}', headers)
+        out2 = conn.getresponse().read();
+        assert_equal('"error":null' in out1, True) #must also response with a correct json-rpc message
+        assert_equal(conn.sock!=None, True) #according to http/1.1 connection must still be open!
+        conn.close()
+        
+        #now do the same with "Connection: close"
+        headers = {"Authorization": "Basic " + base64.b64encode(authpair), "Connection":"close"}
+        
+        conn = httplib.HTTPConnection(url.hostname, url.port)
+        conn.connect()
+        conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
+        out1 = conn.getresponse().read();
+        assert_equal('"error":null' in out1, True)
+        assert_equal(conn.sock!=None, False) #now the connection must be closed after the response        
+        
+        #node1 (2nd node) is running with disabled keep-alive option
+        urlNode1 = urlparse.urlparse(self.nodes[1].url)
+        authpair = urlNode1.username + ':' + urlNode1.password
+        headers = {"Authorization": "Basic " + base64.b64encode(authpair)}
+                
+        conn = httplib.HTTPConnection(urlNode1.hostname, urlNode1.port)
+        conn.connect()
+        conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
+        out1 = conn.getresponse().read();
+        assert_equal('"error":null' in out1, True)
+        assert_equal(conn.sock!=None, False) #connection must be closed because keep-alive was set to false
+        
+        #node2 (third node) is running with standard keep-alive parameters which means keep-alive is off
+        urlNode2 = urlparse.urlparse(self.nodes[2].url)
+        authpair = urlNode2.username + ':' + urlNode2.password
+        headers = {"Authorization": "Basic " + base64.b64encode(authpair)}
+                
+        conn = httplib.HTTPConnection(urlNode2.hostname, urlNode2.port)
+        conn.connect()
+        conn.request('POST', '/', '{"method": "getbestblockhash"}', headers)
+        out1 = conn.getresponse().read();
+        assert_equal('"error":null' in out1, True)
+        assert_equal(conn.sock!=None, True) #connection must be closed because bitcoind should use keep-alive by default
+        
+if __name__ == '__main__':
+    HTTPBasicsTest ().main ()
diff --git a/qa/rpc-tests/mempool_coinbase_spends.py b/qa/rpc-tests/mempool_coinbase_spends.py
new file mode 100755
index 0000000000..7b43712768
--- /dev/null
+++ b/qa/rpc-tests/mempool_coinbase_spends.py
@@ -0,0 +1,94 @@
+#!/usr/bin/env python2
+# Copyright (c) 2014 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#
+# Test re-org scenarios with a mempool that contains transactions
+# that spend (directly or indirectly) coinbase transactions.
+#
+
+from test_framework import BitcoinTestFramework
+from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException
+from util import *
+import os
+import shutil
+
+# Create one-input, one-output, no-fee transaction:
+class MempoolCoinbaseTest(BitcoinTestFramework):
+
+    alert_filename = None  # Set by setup_network
+
+    def setup_network(self):
+        args = ["-checkmempool", "-debug=mempool"]
+        self.nodes = []
+        self.nodes.append(start_node(0, self.options.tmpdir, args))
+        self.nodes.append(start_node(1, self.options.tmpdir, args))
+        connect_nodes(self.nodes[1], 0)
+        self.is_network_split = False
+        self.sync_all
+
+    def create_tx(self, from_txid, to_address, amount):
+        inputs = [{ "txid" : from_txid, "vout" : 0}]
+        outputs = { to_address : amount }
+        rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
+        signresult = self.nodes[0].signrawtransaction(rawtx)
+        assert_equal(signresult["complete"], True)
+        return signresult["hex"]
+
+    def run_test(self):
+        start_count = self.nodes[0].getblockcount()
+
+        # Mine three blocks. After this, nodes[0] blocks
+        # 101, 102, and 103 are spend-able.
+        new_blocks = self.nodes[1].setgenerate(True, 4)
+        self.sync_all()
+
+        node0_address = self.nodes[0].getnewaddress()
+        node1_address = self.nodes[1].getnewaddress()
+
+        # Three scenarios for re-orging coinbase spends in the memory pool:
+        # 1. Direct coinbase spend  :  spend_101
+        # 2. Indirect (coinbase spend in chain, child in mempool) : spend_102 and spend_102_1
+        # 3. Indirect (coinbase and child both in chain) : spend_103 and spend_103_1
+        # Use invalidatblock to make all of the above coinbase spends invalid (immature coinbase),
+        # and make sure the mempool code behaves correctly.
+        b = [ self.nodes[0].getblockhash(n) for n in range(102, 105) ]
+        coinbase_txids = [ self.nodes[0].getblock(h)['tx'][0] for h in b ]
+        spend_101_raw = self.create_tx(coinbase_txids[0], node1_address, 50)
+        spend_102_raw = self.create_tx(coinbase_txids[1], node0_address, 50)
+        spend_103_raw = self.create_tx(coinbase_txids[2], node0_address, 50)
+
+        # Broadcast and mine spend_102 and 103:
+        spend_102_id = self.nodes[0].sendrawtransaction(spend_102_raw)
+        spend_103_id = self.nodes[0].sendrawtransaction(spend_103_raw)
+        self.nodes[0].setgenerate(True, 1)
+
+        # Create 102_1 and 103_1:
+        spend_102_1_raw = self.create_tx(spend_102_id, node1_address, 50)
+        spend_103_1_raw = self.create_tx(spend_103_id, node1_address, 50)
+
+        # Broadcast and mine 103_1:
+        spend_103_1_id = self.nodes[0].sendrawtransaction(spend_103_1_raw)
+        self.nodes[0].setgenerate(True, 1)
+
+        # ... now put spend_101 and spend_102_1 in memory pools:
+        spend_101_id = self.nodes[0].sendrawtransaction(spend_101_raw)
+        spend_102_1_id = self.nodes[0].sendrawtransaction(spend_102_1_raw)
+
+        self.sync_all()
+
+        assert_equal(set(self.nodes[0].getrawmempool()), set([ spend_101_id, spend_102_1_id ]))
+
+        # Use invalidateblock to re-org back and make all those coinbase spends
+        # immature/invalid:
+        for node in self.nodes:
+            node.invalidateblock(new_blocks[0])
+
+        self.sync_all()
+
+        # mempool should be empty.
+        assert_equal(set(self.nodes[0].getrawmempool()), set())
+
+if __name__ == '__main__':
+    MempoolCoinbaseTest().main()
diff --git a/qa/rpc-tests/mempool_resurrect_test.py b/qa/rpc-tests/mempool_resurrect_test.py
index 907cbf98f9..81db812bfc 100755
--- a/qa/rpc-tests/mempool_resurrect_test.py
+++ b/qa/rpc-tests/mempool_resurrect_test.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # Copyright (c) 2014 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
diff --git a/qa/rpc-tests/mempool_spendcoinbase.py b/qa/rpc-tests/mempool_spendcoinbase.py
index 0fc7c8577e..f0b34f2904 100755
--- a/qa/rpc-tests/mempool_spendcoinbase.py
+++ b/qa/rpc-tests/mempool_spendcoinbase.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # Copyright (c) 2014 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
diff --git a/qa/rpc-tests/rest.py b/qa/rpc-tests/rest.py
index 2d301bf4f8..704d889739 100755
--- a/qa/rpc-tests/rest.py
+++ b/qa/rpc-tests/rest.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python2
 # Copyright (c) 2014 The Bitcoin Core developers
 # Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
@@ -23,40 +23,88 @@ except ImportError:
 def http_get_call(host, port, path, response_object = 0):
     conn = httplib.HTTPConnection(host, port)
     conn.request('GET', path)
-    
+
     if response_object:
         return conn.getresponse()
-        
+
     return conn.getresponse().read()
 
 
 class RESTTest (BitcoinTestFramework):
     FORMAT_SEPARATOR = "."
-    
+
     def run_test(self):
         url = urlparse.urlparse(self.nodes[0].url)
         bb_hash = self.nodes[0].getbestblockhash()
-        
+
         # check binary format
         response = http_get_call(url.hostname, url.port, '/rest/block/'+bb_hash+self.FORMAT_SEPARATOR+"bin", True)
         assert_equal(response.status, 200)
-        assert_greater_than(int(response.getheader('content-length')), 10)
-        
+        assert_greater_than(int(response.getheader('content-length')), 80)
+        response_str = response.read()
+
+        # compare with block header
+        response_header = http_get_call(url.hostname, url.port, '/rest/headers/1/'+bb_hash+self.FORMAT_SEPARATOR+"bin", True)
+        assert_equal(response_header.status, 200)
+        assert_equal(int(response_header.getheader('content-length')), 80)
+        response_header_str = response_header.read()
+        assert_equal(response_str[0:80], response_header_str)
+
+        # check block hex format
+        response_hex = http_get_call(url.hostname, url.port, '/rest/block/'+bb_hash+self.FORMAT_SEPARATOR+"hex", True)
+        assert_equal(response_hex.status, 200)
+        assert_greater_than(int(response_hex.getheader('content-length')), 160)
+        response_hex_str = response_hex.read()
+        assert_equal(response_str.encode("hex")[0:160], response_hex_str[0:160])
+
+        # compare with hex block header
+        response_header_hex = http_get_call(url.hostname, url.port, '/rest/headers/1/'+bb_hash+self.FORMAT_SEPARATOR+"hex", True)
+        assert_equal(response_header_hex.status, 200)
+        assert_greater_than(int(response_header_hex.getheader('content-length')), 160)
+        response_header_hex_str = response_header_hex.read()
+        assert_equal(response_hex_str[0:160], response_header_hex_str[0:160])
+        assert_equal(response_header_str.encode("hex")[0:160], response_header_hex_str[0:160])
+
         # check json format
         json_string = http_get_call(url.hostname, url.port, '/rest/block/'+bb_hash+self.FORMAT_SEPARATOR+'json')
         json_obj = json.loads(json_string)
         assert_equal(json_obj['hash'], bb_hash)
-        
+
         # do tx test
-        tx_hash = json_obj['tx'][0];
+        tx_hash = json_obj['tx'][0]['txid'];
         json_string = http_get_call(url.hostname, url.port, '/rest/tx/'+tx_hash+self.FORMAT_SEPARATOR+"json")
         json_obj = json.loads(json_string)
         assert_equal(json_obj['txid'], tx_hash)
-        
+
         # check hex format response
         hex_string = http_get_call(url.hostname, url.port, '/rest/tx/'+tx_hash+self.FORMAT_SEPARATOR+"hex", True)
         assert_equal(response.status, 200)
         assert_greater_than(int(response.getheader('content-length')), 10)
 
+        # check block tx details
+        # let's make 3 tx and mine them on node 1
+        txs = []
+        txs.append(self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11))
+        txs.append(self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11))
+        txs.append(self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11))
+        self.sync_all()
+
+        # now mine the transactions
+        newblockhash = self.nodes[1].setgenerate(True, 1)
+        self.sync_all()
+
+        #check if the 3 tx show up in the new block
+        json_string = http_get_call(url.hostname, url.port, '/rest/block/'+newblockhash[0]+self.FORMAT_SEPARATOR+'json')
+        json_obj = json.loads(json_string)
+        for tx in json_obj['tx']:
+            if not 'coinbase' in tx['vin'][0]: #exclude coinbase
+                assert_equal(tx['txid'] in txs, True)
+
+        #check the same but without tx details
+        json_string = http_get_call(url.hostname, url.port, '/rest/block/notxdetails/'+newblockhash[0]+self.FORMAT_SEPARATOR+'json')
+        json_obj = json.loads(json_string)
+        for tx in txs:
+            assert_equal(tx in json_obj['tx'], True)
+
 if __name__ == '__main__':
     RESTTest ().main ()
diff --git a/qa/rpc-tests/smartfees.py b/qa/rpc-tests/smartfees.py
index 924d160102..0c07ef8a53 100755
--- a/qa/rpc-tests/smartfees.py
+++ b/qa/rpc-tests/smartfees.py
@@ -16,20 +16,20 @@ class EstimateFeeTest(BitcoinTestFramework):
     def setup_network(self):
         self.nodes = []
         self.nodes.append(start_node(0, self.options.tmpdir,
-                            ["-debug=mempool", "-debug=estimatefee"]))
+                            ["-debug=mempool", "-debug=estimatefee", "-relaypriority=0"]))
         # Node1 mines small-but-not-tiny blocks, and allows free transactions.
         # NOTE: the CreateNewBlock code starts counting block size at 1,000 bytes,
         # so blockmaxsize of 2,000 is really just 1,000 bytes (room enough for
         # 6 or 7 transactions)
         self.nodes.append(start_node(1, self.options.tmpdir,
                                 ["-blockprioritysize=1500", "-blockmaxsize=2000",
-                                 "-debug=mempool", "-debug=estimatefee"]))
+                                 "-debug=mempool", "-debug=estimatefee", "-relaypriority=0"]))
         connect_nodes(self.nodes[1], 0)
 
         # Node2 is a stingy miner, that
         # produces very small blocks (room for only 3 or so transactions)
         node2args = [ "-blockprioritysize=0", "-blockmaxsize=1500",
-                      "-debug=mempool", "-debug=estimatefee"]
+                      "-debug=mempool", "-debug=estimatefee", "-relaypriority=0"]
         self.nodes.append(start_node(2, self.options.tmpdir, node2args))
         connect_nodes(self.nodes[2], 0)
 
diff --git a/qa/rpc-tests/test_framework.py b/qa/rpc-tests/test_framework.py
index 6c4ec073c2..4c8a11b821 100755
--- a/qa/rpc-tests/test_framework.py
+++ b/qa/rpc-tests/test_framework.py
@@ -33,8 +33,11 @@ class BitcoinTestFramework(object):
         print("Initializing test directory "+self.options.tmpdir)
         initialize_chain(self.options.tmpdir)
 
+    def setup_nodes(self):
+        return start_nodes(4, self.options.tmpdir)
+
     def setup_network(self, split = False):
-        self.nodes = start_nodes(4, self.options.tmpdir)
+        self.nodes = self.setup_nodes()
 
         # Connect the nodes as a "chain".  This allows us
         # to split the network between nodes 1 and 2 to get
diff --git a/qa/rpc-tests/wallet.py b/qa/rpc-tests/wallet.py
index bf71d5ebc5..3e63493dc6 100755
--- a/qa/rpc-tests/wallet.py
+++ b/qa/rpc-tests/wallet.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python2
 # Copyright (c) 2014 The Bitcoin Core developers
-# Distributed under the MIT/X11 software license, see the accompanying
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #
@@ -41,6 +41,10 @@ class WalletTest (BitcoinTestFramework):
 
         self.nodes[0].setgenerate(True, 1)
 
+        walletinfo = self.nodes[0].getwalletinfo()
+        assert_equal(walletinfo['immature_balance'], 50)
+        assert_equal(walletinfo['balance'], 0)
+
         self.sync_all()
         self.nodes[1].setgenerate(True, 101)
         self.sync_all()
@@ -54,7 +58,10 @@ class WalletTest (BitcoinTestFramework):
         self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11)
         self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 10)
 
-        # Have node0 mine a block, thus he will collect his own fee. 
+        walletinfo = self.nodes[0].getwalletinfo()
+        assert_equal(walletinfo['immature_balance'], 0)
+
+        # Have node0 mine a block, thus they will collect their own fee. 
         self.nodes[0].setgenerate(True, 1)
         self.sync_all()
 
diff --git a/qa/rpc-tests/walletbackup.py b/qa/rpc-tests/walletbackup.py
new file mode 100755
index 0000000000..049697c2db
--- /dev/null
+++ b/qa/rpc-tests/walletbackup.py
@@ -0,0 +1,200 @@
+#!/usr/bin/env python2
+# Copyright (c) 2014 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+"""
+Exercise the wallet backup code.  Ported from walletbackup.sh.
+
+Test case is:
+4 nodes. 1 2 and 3 send transactions between each other,
+fourth node is a miner.
+1 2 3 each mine a block to start, then
+Miner creates 100 blocks so 1 2 3 each have 50 mature
+coins to spend.
+Then 5 iterations of 1/2/3 sending coins amongst
+themselves to get transactions in the wallets,
+and the miner mining one block.
+
+Wallets are backed up using dumpwallet/backupwallet.
+Then 5 more iterations of transactions and mining a block.
+
+Miner then generates 101 more blocks, so any
+transaction fees paid mature.
+
+Sanity check:
+  Sum(1,2,3,4 balances) == 114*50
+
+1/2/3 are shutdown, and their wallets erased.
+Then restore using wallet.dat backup. And
+confirm 1/2/3/4 balances are same as before.
+
+Shutdown again, restore using importwallet,
+and confirm again balances are correct.
+"""
+
+from test_framework import BitcoinTestFramework
+from util import *
+from random import randint
+import logging
+logging.basicConfig(format='%(levelname)s:%(message)s', level=logging.INFO)
+
+class WalletBackupTest(BitcoinTestFramework):
+
+    def setup_chain(self):
+        logging.info("Initializing test directory "+self.options.tmpdir)
+        initialize_chain_clean(self.options.tmpdir, 4)
+
+    # This mirrors how the network was setup in the bash test
+    def setup_network(self, split=False):
+        # nodes 1, 2,3 are spenders, let's give them a keypool=100
+        extra_args = [["-keypool=100"], ["-keypool=100"], ["-keypool=100"], []]
+        self.nodes = start_nodes(4, self.options.tmpdir, extra_args)
+        connect_nodes(self.nodes[0], 3)
+        connect_nodes(self.nodes[1], 3)
+        connect_nodes(self.nodes[2], 3)
+        connect_nodes(self.nodes[2], 0)
+        self.is_network_split=False
+        self.sync_all()
+
+    def one_send(self, from_node, to_address):
+        if (randint(1,2) == 1):
+            amount = Decimal(randint(1,10)) / Decimal(10)
+            self.nodes[from_node].sendtoaddress(to_address, amount)
+
+    def do_one_round(self):
+        a0 = self.nodes[0].getnewaddress()
+        a1 = self.nodes[1].getnewaddress()
+        a2 = self.nodes[2].getnewaddress()
+
+        self.one_send(0, a1)
+        self.one_send(0, a2)
+        self.one_send(1, a0)
+        self.one_send(1, a2)
+        self.one_send(2, a0)
+        self.one_send(2, a1)
+
+        # Have the miner (node3) mine a block.
+        # Must sync mempools before mining.
+        sync_mempools(self.nodes)
+        self.nodes[3].setgenerate(True, 1)
+
+    # As above, this mirrors the original bash test.
+    def start_three(self):
+        self.nodes[0] = start_node(0, self.options.tmpdir)
+        self.nodes[1] = start_node(1, self.options.tmpdir)
+        self.nodes[2] = start_node(2, self.options.tmpdir)
+        connect_nodes(self.nodes[0], 3)
+        connect_nodes(self.nodes[1], 3)
+        connect_nodes(self.nodes[2], 3)
+        connect_nodes(self.nodes[2], 0)
+
+    def stop_three(self):
+        stop_node(self.nodes[0], 0)
+        stop_node(self.nodes[1], 1)
+        stop_node(self.nodes[2], 2)
+
+    def erase_three(self):
+        os.remove(self.options.tmpdir + "/node0/regtest/wallet.dat")
+        os.remove(self.options.tmpdir + "/node1/regtest/wallet.dat")
+        os.remove(self.options.tmpdir + "/node2/regtest/wallet.dat")
+
+    def run_test(self):
+        logging.info("Generating initial blockchain")
+        self.nodes[0].setgenerate(True, 1)
+        sync_blocks(self.nodes)
+        self.nodes[1].setgenerate(True, 1)
+        sync_blocks(self.nodes)
+        self.nodes[2].setgenerate(True, 1)
+        sync_blocks(self.nodes)
+        self.nodes[3].setgenerate(True, 100)
+        sync_blocks(self.nodes)
+
+        assert_equal(self.nodes[0].getbalance(), 50)
+        assert_equal(self.nodes[1].getbalance(), 50)
+        assert_equal(self.nodes[2].getbalance(), 50)
+        assert_equal(self.nodes[3].getbalance(), 0)
+
+        logging.info("Creating transactions")
+        # Five rounds of sending each other transactions.
+        for i in range(5):
+            self.do_one_round()
+
+        logging.info("Backing up")
+        tmpdir = self.options.tmpdir
+        self.nodes[0].backupwallet(tmpdir + "/node0/wallet.bak")
+        self.nodes[0].dumpwallet(tmpdir + "/node0/wallet.dump")
+        self.nodes[1].backupwallet(tmpdir + "/node1/wallet.bak")
+        self.nodes[1].dumpwallet(tmpdir + "/node1/wallet.dump")
+        self.nodes[2].backupwallet(tmpdir + "/node2/wallet.bak")
+        self.nodes[2].dumpwallet(tmpdir + "/node2/wallet.dump")
+
+        logging.info("More transactions")
+        for i in range(5):
+            self.do_one_round()
+
+        # Generate 101 more blocks, so any fees paid mature
+        self.nodes[3].setgenerate(True, 101)
+        self.sync_all()
+
+        balance0 = self.nodes[0].getbalance()
+        balance1 = self.nodes[1].getbalance()
+        balance2 = self.nodes[2].getbalance()
+        balance3 = self.nodes[3].getbalance()
+        total = balance0 + balance1 + balance2 + balance3
+
+        # At this point, there are 214 blocks (103 for setup, then 10 rounds, then 101.)
+        # 114 are mature, so the sum of all wallets should be 114 * 50 = 5700.
+        assert_equal(total, 5700)
+
+        ##
+        # Test restoring spender wallets from backups
+        ##
+        logging.info("Restoring using wallet.dat")
+        self.stop_three()
+        self.erase_three()
+
+        # Start node2 with no chain
+        shutil.rmtree(self.options.tmpdir + "/node2/regtest/blocks")
+        shutil.rmtree(self.options.tmpdir + "/node2/regtest/chainstate")
+
+        # Restore wallets from backup
+        shutil.copyfile(tmpdir + "/node0/wallet.bak", tmpdir + "/node0/regtest/wallet.dat")
+        shutil.copyfile(tmpdir + "/node1/wallet.bak", tmpdir + "/node1/regtest/wallet.dat")
+        shutil.copyfile(tmpdir + "/node2/wallet.bak", tmpdir + "/node2/regtest/wallet.dat")
+
+        logging.info("Re-starting nodes")
+        self.start_three()
+        sync_blocks(self.nodes)
+
+        assert_equal(self.nodes[0].getbalance(), balance0)
+        assert_equal(self.nodes[1].getbalance(), balance1)
+        assert_equal(self.nodes[2].getbalance(), balance2)
+
+        logging.info("Restoring using dumped wallet")
+        self.stop_three()
+        self.erase_three()
+
+        #start node2 with no chain
+        shutil.rmtree(self.options.tmpdir + "/node2/regtest/blocks")
+        shutil.rmtree(self.options.tmpdir + "/node2/regtest/chainstate")
+
+        self.start_three()
+
+        assert_equal(self.nodes[0].getbalance(), 0)
+        assert_equal(self.nodes[1].getbalance(), 0)
+        assert_equal(self.nodes[2].getbalance(), 0)
+
+        self.nodes[0].importwallet(tmpdir + "/node0/wallet.dump")
+        self.nodes[1].importwallet(tmpdir + "/node1/wallet.dump")
+        self.nodes[2].importwallet(tmpdir + "/node2/wallet.dump")
+
+        sync_blocks(self.nodes)
+
+        assert_equal(self.nodes[0].getbalance(), balance0)
+        assert_equal(self.nodes[1].getbalance(), balance1)
+        assert_equal(self.nodes[2].getbalance(), balance2)
+
+
+if __name__ == '__main__':
+    WalletBackupTest().main()
diff --git a/qa/rpc-tests/walletbackup.sh b/qa/rpc-tests/walletbackup.sh
deleted file mode 100755
index 4af3d97f35..0000000000
--- a/qa/rpc-tests/walletbackup.sh
+++ /dev/null
@@ -1,297 +0,0 @@
-#!/usr/bin/env bash
-# Copyright (c) 2014 The Bitcoin Core developers
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-# Test wallet backup / dump / restore functionality
-
-# Test case is:
-# 4 nodes. 1 2 3 and send transactions between each other,
-# fourth node is a miner.
-# 1 2 3 and each mine a block to start, then
-# miner creates 100 blocks so 1 2 3 each have 50 mature
-# coins to spend.
-# Then 5 iterations of 1/2/3 sending coins amongst
-# themselves to get transactions in the wallets,
-# and the miner mining one block.
-#
-# Wallets are backed up using dumpwallet/backupwallet.
-# Then 5 more iterations of transactions, then block.
-#
-# Miner then generates 101 more blocks, so any
-# transaction fees paid mature.
-#
-# Sanity checks done:
-#   Miner balance >= 150*50
-#   Sum(1,2,3,4 balances) == 153*150
-#
-# 1/2/3 are shutdown, and their wallets erased.
-# Then restore using wallet.dat backup. And
-# confirm 1/2/3/4 balances are same as before.
-#
-# Shutdown again, restore using importwallet,
-# and confirm again balances are correct.
-#
-
-if [ $# -lt 1 ]; then
-        echo "Usage: $0 path_to_binaries"
-        echo "e.g. $0 ../../src"
-        echo "Env vars BITCOIND and BITCOINCLI may be used to specify the exact binaries used"
-        exit 1
-fi
-
-BITCOIND=${BITCOIND:-${1}/bitcoind}
-CLI=${BITCOINCLI:-${1}/bitcoin-cli}
-
-DIR="${BASH_SOURCE%/*}"
-SENDANDWAIT="${DIR}/send.sh"
-if [[ ! -d "$DIR" ]]; then DIR="$PWD"; fi
-. "$DIR/util.sh"
-
-D=$(mktemp -d test.XXXXX)
-
-echo "Starting nodes..."
-
-# "Miner":
-D4=${D}/node4
-CreateDataDir $D4 port=11030 rpcport=11031
-B4ARGS="-datadir=$D4"
-$BITCOIND $BITCOINDARGS $B4ARGS &
-B4PID=$!
-
-# Want default keypool for 1/2/3, and
-# don't need send-and-wait functionality,
-# so don't use CreateDataDir:
-function CreateConfDir {
-  DIR=$1
-  mkdir -p $DIR
-  CONF=$DIR/bitcoin.conf
-  echo "regtest=1" >> $CONF
-  echo "rpcuser=rt" >> $CONF
-  echo "rpcpassword=rt" >> $CONF
-  echo "rpcwait=1" >> $CONF
-  shift
-  while (( "$#" )); do
-      echo $1 >> $CONF
-      shift
-  done
-}
-
-# "Spenders" 1/2/3
-D1=${D}/node1
-CreateConfDir $D1 port=11000 rpcport=11001 addnode=127.0.0.1:11030
-B1ARGS="-datadir=$D1"
-$BITCOIND $B1ARGS &
-B1PID=$!
-D2=${D}/node2
-CreateConfDir $D2 port=11010 rpcport=11011 addnode=127.0.0.1:11030
-B2ARGS="-datadir=$D2"
-$BITCOIND $B2ARGS &
-B2PID=$!
-D3=${D}/node3
-CreateConfDir $D3 port=11020 rpcport=11021 addnode=127.0.0.1:11030 addnode=127.0.0.1:11000
-B3ARGS="-datadir=$D3"
-$BITCOIND $BITCOINDARGS $B3ARGS &
-B3PID=$!
-
-# Wait until all nodes are at the same block number
-function WaitBlocks {
-    while :
-    do
-        sleep 1
-        BLOCKS1=$( GetBlocks "$B1ARGS" )
-        BLOCKS2=$( GetBlocks "$B2ARGS" )
-        BLOCKS3=$( GetBlocks "$B3ARGS" )
-        BLOCKS4=$( GetBlocks "$B4ARGS" )
-        if (( BLOCKS1 == BLOCKS4 && BLOCKS2 == BLOCKS4 && BLOCKS3 == BLOCKS4 ))
-        then
-            break
-        fi
-    done
-}
-
-# Wait until all nodes have the same txns in
-# their memory pools
-function WaitMemPools {
-    while :
-    do
-        sleep 1
-        MEMPOOL1=$( $CLI "$B1ARGS" getrawmempool | sort | shasum )
-        MEMPOOL2=$( $CLI "$B2ARGS" getrawmempool | sort | shasum )
-        MEMPOOL3=$( $CLI "$B3ARGS" getrawmempool | sort | shasum )
-        MEMPOOL4=$( $CLI "$B4ARGS" getrawmempool | sort | shasum )
-        if [[ $MEMPOOL1 = $MEMPOOL4 && $MEMPOOL2 = $MEMPOOL4 && $MEMPOOL3 = $MEMPOOL4 ]]
-        then
-            break
-        fi
-    done
-}
-
-echo "Generating initial blockchain..."
-
-# 1 block, 50 XBT each == 50 BTC
-$CLI $B1ARGS setgenerate true 1
-WaitBlocks
-$CLI $B2ARGS setgenerate true 1
-WaitBlocks
-$CLI $B3ARGS setgenerate true 1
-WaitBlocks
-
-# 100 blocks, 0 mature
-$CLI $B4ARGS setgenerate true 100
-WaitBlocks
-
-CheckBalance "$B1ARGS" 50
-CheckBalance "$B2ARGS" 50
-CheckBalance "$B3ARGS" 50
-CheckBalance "$B4ARGS" 0
-
-echo "Creating transactions..."
-
-function S {
-  TXID=$( $CLI -datadir=${D}/node${1} sendtoaddress ${2} "${3}" 0 )
-  if [ x$TXID = x ] ; then
-      echoerr "node${1}: error sending ${3} btc"
-      echo -n "node${1} balance: "
-      $CLI -datadir=${D}/node${1} getbalance "*" 0
-      exit 1
-  fi
-}
-
-function OneRound {
-  A1=$( $CLI $B1ARGS getnewaddress )
-  A2=$( $CLI $B2ARGS getnewaddress )
-  A3=$( $CLI $B3ARGS getnewaddress )
-  if [[ $(( $RANDOM%2 )) < 1 ]] ; then
-      N=$(( $RANDOM % 9 + 1 ))
-      S 1 $A2 "0.$N"
-  fi
-  if [[ $(( $RANDOM%2 )) < 1 ]] ; then
-      N=$(( $RANDOM % 9 + 1 ))
-      S 1 $A3 "0.0$N"
-  fi
-  if [[ $(( $RANDOM%2 )) < 1 ]] ; then
-      N=$(( $RANDOM % 9 + 1 ))
-      S 2 $A1 "0.$N"
-  fi
-  if [[ $(( $RANDOM%2 )) < 1 ]] ; then
-      N=$(( $RANDOM % 9 + 1 ))
-      S 2 $A3 "0.$N"
-  fi
-  if [[ $(( $RANDOM%2 )) < 1 ]] ; then
-      N=$(( $RANDOM % 9 + 1 ))
-      S 3 $A1 "0.$N"
-  fi
-  if [[ $(( $RANDOM%2 )) < 1 ]] ; then
-      N=$(( $RANDOM % 9 + 1 ))
-      S 3 $A2 "0.0$N"
-  fi
-  $CLI "$B4ARGS" setgenerate true 1
-}
-
-for i in {1..5}; do OneRound ; done
-
-echo "Backing up..."
-
-$CLI "$B1ARGS" backupwallet "$D1/wallet.bak"
-$CLI "$B1ARGS" dumpwallet "$D1/wallet.dump"
-$CLI "$B2ARGS" backupwallet "$D2/wallet.bak"
-$CLI "$B2ARGS" dumpwallet "$D2/wallet.dump"
-$CLI "$B3ARGS" backupwallet "$D3/wallet.bak"
-$CLI "$B3ARGS" dumpwallet "$D3/wallet.dump"
-
-echo "More transactions..."
-for i in {1..5}; do OneRound ; done
-
-WaitMemPools
-
-# Generate 101 more blocks, so any fees paid
-# mature
-$CLI "$B4ARGS" setgenerate true 101
-
-BALANCE1=$( $CLI "$B1ARGS" getbalance )
-BALANCE2=$( $CLI "$B2ARGS" getbalance )
-BALANCE3=$( $CLI "$B3ARGS" getbalance )
-BALANCE4=$( $CLI "$B4ARGS" getbalance )
-
-TOTAL=$( dc -e "$BALANCE1 $BALANCE2 $BALANCE3 $BALANCE4 + + + p" )
-
-AssertEqual $TOTAL 5700.00000000
-
-function StopThree {
-  $CLI $B1ARGS stop > /dev/null 2>&1
-  $CLI $B2ARGS stop > /dev/null 2>&1
-  $CLI $B3ARGS stop > /dev/null 2>&1
-  wait $B1PID
-  wait $B2PID
-  wait $B3PID
-}
-function EraseThree {
-  rm $D1/regtest/wallet.dat
-  rm $D2/regtest/wallet.dat
-  rm $D3/regtest/wallet.dat
-}
-function StartThree {
-  $BITCOIND $BITCOINDARGS $B1ARGS &
-  B1PID=$!
-  $BITCOIND $BITCOINDARGS $B2ARGS &
-  B2PID=$!
-  $BITCOIND $BITCOINDARGS $B3ARGS &
-  B3PID=$!
-}
-
-echo "Restoring using wallet.dat"
-
-StopThree
-EraseThree
-
-# Start node3 with no chain
-rm -rf $D3/regtest/blocks
-rm -rf $D3/regtest/chainstate
-rm -rf $D3/regtest/database
-
-cp $D1/wallet.bak $D1/regtest/wallet.dat
-cp $D2/wallet.bak $D2/regtest/wallet.dat
-cp $D3/wallet.bak $D3/regtest/wallet.dat
-
-StartThree
-WaitBlocks
-
-AssertEqual $BALANCE1 $( $CLI "$B1ARGS" getbalance )
-AssertEqual $BALANCE2 $( $CLI "$B2ARGS" getbalance )
-AssertEqual $BALANCE3 $( $CLI "$B3ARGS" getbalance )
-
-echo "Restoring using dumped wallet"
-
-StopThree
-EraseThree
-
-# Start node3 with no chain
-rm -rf $D3/regtest/blocks
-rm -rf $D3/regtest/chainstate
-rm -rf $D3/regtest/database
-
-StartThree
-
-AssertEqual 0 $( $CLI "$B1ARGS" getbalance )
-AssertEqual 0 $( $CLI "$B2ARGS" getbalance )
-AssertEqual 0 $( $CLI "$B3ARGS" getbalance )
-
-$CLI "$B1ARGS" importwallet $D1/wallet.dump
-$CLI "$B2ARGS" importwallet $D2/wallet.dump
-$CLI "$B3ARGS" importwallet $D3/wallet.dump
-
-WaitBlocks
-
-AssertEqual $BALANCE1 $( $CLI "$B1ARGS" getbalance )
-AssertEqual $BALANCE2 $( $CLI "$B2ARGS" getbalance )
-AssertEqual $BALANCE3 $( $CLI "$B3ARGS" getbalance )
-
-StopThree
-$CLI $B4ARGS stop > /dev/null 2>&1
-wait $B4PID
-
-echo "Tests successful, cleaning up"
-trap "" EXIT
-rm -rf $D
-exit 0
diff --git a/qa/rpc-tests/zapwallettxes.py b/qa/rpc-tests/zapwallettxes.py
new file mode 100755
index 0000000000..a773575906
--- /dev/null
+++ b/qa/rpc-tests/zapwallettxes.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python2
+# Copyright (c) 2014 The Bitcoin Core developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+from test_framework import BitcoinTestFramework
+from util import *
+
+
+class ZapWalletTXesTest (BitcoinTestFramework):
+
+    def setup_chain(self):
+        print("Initializing test directory "+self.options.tmpdir)
+        initialize_chain_clean(self.options.tmpdir, 3)
+
+    def setup_network(self, split=False):
+        self.nodes = start_nodes(3, self.options.tmpdir)
+        connect_nodes_bi(self.nodes,0,1)
+        connect_nodes_bi(self.nodes,1,2)
+        connect_nodes_bi(self.nodes,0,2)
+        self.is_network_split=False
+        self.sync_all()
+
+    def run_test (self):
+        print "Mining blocks..."
+        self.nodes[0].setgenerate(True, 1)
+        self.sync_all()
+        self.nodes[1].setgenerate(True, 101)
+        self.sync_all()
+        
+        assert_equal(self.nodes[0].getbalance(), 50)
+        
+        txid0 = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11)
+        txid1 = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 10)
+        self.sync_all()
+        self.nodes[0].setgenerate(True, 1)
+        self.sync_all()
+        
+        txid2 = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 11)
+        txid3 = self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 10)
+        
+        tx0 = self.nodes[0].gettransaction(txid0)
+        assert_equal(tx0['txid'], txid0) #tx0 must be available (confirmed)
+        
+        tx1 = self.nodes[0].gettransaction(txid1)
+        assert_equal(tx1['txid'], txid1) #tx1 must be available (confirmed)
+        
+        tx2 = self.nodes[0].gettransaction(txid2)
+        assert_equal(tx2['txid'], txid2) #tx2 must be available (unconfirmed)
+        
+        tx3 = self.nodes[0].gettransaction(txid3)
+        assert_equal(tx3['txid'], txid3) #tx3 must be available (unconfirmed)
+        
+        #restart bitcoind
+        self.nodes[0].stop()
+        bitcoind_processes[0].wait()
+        self.nodes[0] = start_node(0,self.options.tmpdir)
+        
+        tx3 = self.nodes[0].gettransaction(txid3)
+        assert_equal(tx3['txid'], txid3) #tx must be available (unconfirmed)
+        
+        self.nodes[0].stop()
+        bitcoind_processes[0].wait()
+        
+        #restart bitcoind with zapwallettxes
+        self.nodes[0] = start_node(0,self.options.tmpdir, ["-zapwallettxes=1"])
+        
+        aException = False
+        try:
+            tx3 = self.nodes[0].gettransaction(txid3)
+        except JSONRPCException,e:
+            print e
+            aException = True
+        
+        assert_equal(aException, True) #there must be a expection because the unconfirmed wallettx0 must be gone by now
+
+        tx0 = self.nodes[0].gettransaction(txid0)
+        assert_equal(tx0['txid'], txid0) #tx0 (confirmed) must still be available because it was confirmed
+
+
+if __name__ == '__main__':
+    ZapWalletTXesTest ().main ()
diff --git a/qa/rpc-tests/zapwallettxes.sh b/qa/rpc-tests/zapwallettxes.sh
deleted file mode 100755
index 4312d84e94..0000000000
--- a/qa/rpc-tests/zapwallettxes.sh
+++ /dev/null
@@ -1,165 +0,0 @@
-#!/usr/bin/env bash
-# Copyright (c) 2014 The Bitcoin Core developers
-# Distributed under the MIT software license, see the accompanying
-# file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-# Test -zapwallettxes=<mode>
-
-if [ $# -lt 1 ]; then
-        echo "Usage: $0 path_to_binaries"
-        echo "e.g. $0 ../../src"
-        echo "Env vars BITCOIND and BITCOINCLI may be used to specify the exact binaries used"
-        exit 1
-fi
-
-set -f
-
-BITCOIND=${BITCOIND:-${1}/bitcoind}
-CLI=${BITCOINCLI:-${1}/bitcoin-cli}
-
-DIR="${BASH_SOURCE%/*}"
-SENDANDWAIT="${DIR}/send.sh"
-if [[ ! -d "$DIR" ]]; then DIR="$PWD"; fi
-. "$DIR/util.sh"
-
-D=$(mktemp -d test.XXXXX)
-
-D1=${D}/node1
-CreateDataDir "$D1" port=11000 rpcport=11001
-B1ARGS="-datadir=$D1"
-$BITCOIND $B1ARGS &
-B1PID=$!
-
-D2=${D}/node2
-CreateDataDir "$D2" port=11010 rpcport=11011
-B2ARGS="-datadir=$D2"
-$BITCOIND $B2ARGS &
-B2PID=$!
-
-function CleanUp {
-$CLI $B2ARGS stop > /dev/null 2>&1
-wait $B2PID
-$CLI $B1ARGS stop > /dev/null 2>&1
-wait $B1PID
-
-rm -rf $D
-}
-
-# 110 blocks, 10 mature == 500 XBT
-$CLI $B1ARGS setgenerate true 110
-$CLI $B2ARGS setgenerate true 110
-
-CheckBalance "$B1ARGS" 500
-CheckBalance "$B2ARGS" 500
-
-# Send 10 XBT
-TXID1_DEFAULT=$($CLI $B1ARGS sendtoaddress "mrhz5ZgSF3C1BSdyCKt3gEdhKoRL5BNfJV" 10)
-TXID2_DEFAULT=$($CLI $B2ARGS sendtoaddress "mrhz5ZgSF3C1BSdyCKt3gEdhKoRL5BNfJV" 10)
-
-CheckBalance $B1ARGS 490
-CheckBalance $B2ARGS 490
-
-# Move 10 XBT to testaccount
-TMP=$($CLI $B1ARGS move "" "testaccount" 10)
-TMP=$($CLI $B2ARGS move "" "testaccount" 10)
-
-CheckBalance $B1ARGS 10 "testaccount"
-CheckBalance $B2ARGS 10 "testaccount"
-
-# Send 1 XBT from testaccount
-TXID1_TESTACCOUNT=$($CLI $B1ARGS sendfrom "testaccount" "mrhz5ZgSF3C1BSdyCKt3gEdhKoRL5BNfJV" 1)
-TXID2_TESTACCOUNT=$($CLI $B2ARGS sendfrom "testaccount" "mrhz5ZgSF3C1BSdyCKt3gEdhKoRL5BNfJV" 1)
-
-CheckBalance $B1ARGS 9 "testaccount"
-CheckBalance $B2ARGS 9 "testaccount"
-
-CheckBalance $B1ARGS 489
-CheckBalance $B2ARGS 489
-
-# Confirm transactions
-$CLI $B1ARGS setgenerate true 1
-$CLI $B2ARGS setgenerate true 1
-
-# Create unconfirmed transaction
-TXID1_UNCONFIRMED=$($CLI $B1ARGS sendtoaddress "mrhz5ZgSF3C1BSdyCKt3gEdhKoRL5BNfJV" 1)
-TXID2_UNCONFIRMED=$($CLI $B2ARGS sendtoaddress "mrhz5ZgSF3C1BSdyCKt3gEdhKoRL5BNfJV" 1)
-
-# check balance (we created another 50 and spent 1 in the meantime)
-CheckBalance $B1ARGS 538
-CheckBalance $B2ARGS 538
-
-# Safety check, if unconfirmed transactions are there
-$CLI $B1ARGS gettransaction $TXID1_UNCONFIRMED > /dev/null 2>&1
-if [[ $? -ne 0 ]] ; then
-    echoerr "gettransaction1_1: $TXID1_UNCONFIRMED failed"
-    CleanUp
-    exit 1
-fi
-$CLI $B2ARGS gettransaction $TXID2_UNCONFIRMED > /dev/null 2>&1
-if [[ $? -ne 0 ]] ; then
-    echoerr "gettransaction2_1: $TXID2_UNCONFIRMED failed"
-    CleanUp
-    exit 1
-fi
-
-# stop nodes
-$CLI $B2ARGS stop > /dev/null 2>&1
-wait $B2PID
-$CLI $B1ARGS stop > /dev/null 2>&1
-wait $B1PID
-
-# restart nodes with -zapwallettxes
-$BITCOIND -zapwallettxes=1 $B1ARGS &
-B1PID=$!
-$BITCOIND -zapwallettxes=2 $B2ARGS &
-B2PID=$!
-
-# check if confirmed transactions are there
-$CLI $B1ARGS gettransaction $TXID1_DEFAULT > /dev/null 2>&1
-if [[ $? -ne 0 ]] ; then
-    echoerr "check confirmed transaction 1: $TXID1_DEFAULT failed"
-    CleanUp
-    exit 1
-fi
-$CLI $B2ARGS gettransaction $TXID2_DEFAULT > /dev/null 2>&1
-if [[ $? -ne 0 ]] ; then
-    echoerr "check confirmed transaction 2: $TXID2_DEFAULT failed"
-    CleanUp
-    exit 1
-fi
-$CLI $B1ARGS gettransaction $TXID1_TESTACCOUNT > /dev/null 2>&1
-if [[ $? -ne 0 ]] ; then
-    echoerr "check confirmed transaction 3: $TXID1_TESTACCOUNT failed"
-    CleanUp
-    exit 1
-fi
-$CLI $B2ARGS gettransaction $TXID2_TESTACCOUNT > /dev/null 2>&1
-if [[ $? -ne 0 ]] ; then
-    echoerr "check confirmed transaction 4: $TXID2_TESTACCOUNT failed"
-    CleanUp
-    exit 1
-fi
-
-# check if unconfirmed transaction is gone
-$CLI $B1ARGS gettransaction $TXID1_UNCONFIRMED > /dev/null 2>&1
-if [[ $? -eq 0 ]] ; then
-    echoerr "check unconfirmed transaction 1: $TXID1_UNCONFIRMED failed"
-    CleanUp
-    exit 1
-fi
-$CLI $B2ARGS gettransaction $TXID2_UNCONFIRMED > /dev/null 2>&1
-if [[ $? -eq 0 ]] ; then
-    echoerr "check unconfirmed transaction 2: $TXID2_UNCONFIRMED failed"
-    CleanUp
-    exit 1
-fi
-
-# check zapwallet mode 1, testaccount balance must be 9 (keeping transaction metadata)
-CheckBalance $B1ARGS 9 "testaccount"
-
-# check zapwallet mode 2, testaccount balance must be 10 (dropping transaction metadata)
-CheckBalance $B2ARGS 10 "testaccount"
-
-echo "Tests successful, cleaning up"
-CleanUp
-exit 0
diff --git a/share/seeds/nodes_main.txt b/share/seeds/nodes_main.txt
index f2558cf3c4..3dba6d8a64 100644
--- a/share/seeds/nodes_main.txt
+++ b/share/seeds/nodes_main.txt
@@ -1,607 +1,518 @@
 # List of fixed seed nodes for main network
 
-# IPv4 nodes (in old chainparams.cpp 0xDDCCBBAA format)
-#  n.b. when importing a new list, there is no need to use this format, just use IPv4 dotted addresses directly
-0x7e6a692e # 46.105.106.126
-0x7d04d1a2 # 162.209.4.125
-0x6c0c17d9 # 217.23.12.108
-0xdb330ab9 # 185.10.51.219
-0xc649c7c6 # 198.199.73.198
-0x7895484d # 77.72.149.120
-0x047109b0 # 176.9.113.4
-0xb90ca5bc # 188.165.12.185
-0xd130805f # 95.128.48.209
-0xbd074ea6 # 166.78.7.189
-0x578ff1c0 # 192.241.143.87
-0x286e09b0 # 176.9.110.40
-0xd4dcaf42 # 66.175.220.212
-0x529b6bb8 # 184.107.155.82
-0x635cc6c0 # 192.198.92.99
-0xedde892e # 46.137.222.237
-0xa976d9c7 # 199.217.118.169
-0xea91a4b8 # 184.164.145.234
-0x03fa4eb2 # 178.78.250.3
-0x6ca9008d # 141.0.169.108
-0xaf62c825 # 37.200.98.175
-0x93f3ba51 # 81.186.243.147
-0xc2c9efd5 # 213.239.201.194
-0x0ed5175e # 94.23.213.14
-0x487028bc # 188.40.112.72
-0x7297c225 # 37.194.151.114
-0x8af0c658 # 88.198.240.138
-0x2e57ba1f # 31.186.87.46
-0xd0098abc # 188.138.9.208
-0x46a8853e # 62.133.168.70
-0xcc92dc3e # 62.220.146.204
-0xeb6f1955 # 85.25.111.235
-0x8cce175e # 94.23.206.140
-0x237281ae # 174.129.114.35
-0x9d42795b # 91.121.66.157
-0x4f4f0905 # 5.9.79.79
-0xc50151d0 # 208.81.1.197
-0xb1ba90c6 # 198.144.186.177
-0xaed7175e # 94.23.215.174
-0x204de55b # 91.229.77.32
-0x4bb03245 # 69.50.176.75
-0x932b28bc # 188.40.43.147
-0x2dcce65b # 91.230.204.45
-0xe2708abc # 188.138.112.226
-0x1b08b8d5 # 213.184.8.27
-0x12a3dc5b # 91.220.163.18
-0x8a884c90 # 144.76.136.138
-0xa386a8b8 # 184.168.134.163
-0x18e417c6 # 198.23.228.24
-0x2e709ac3 # 195.154.112.46
-0xeb62e925 # 37.233.98.235
-0x6f6503ae # 174.3.101.111
-0x05d0814e # 78.129.208.5
-0x8a9ac545 # 69.197.154.138
-0x946fd65e # 94.214.111.148
-0x3f57495d # 93.73.87.63
-0x4a29c658 # 88.198.41.74
-0xad454c90 # 144.76.69.173
-0x15340905 # 5.9.52.21
-0x4c3f3b25 # 37.59.63.76
-0x01fe19b9 # 185.25.254.1
-0x5620595b # 91.89.32.86
-0x443c795b # 91.121.60.68
-0x44f24ac8 # 200.74.242.68
-0x0442464e # 78.70.66.4
-0xc8665882 # 130.88.102.200
-0xed3f3ec3 # 195.62.63.237
-0xf585bf5d # 93.191.133.245
-0x5dd141da # 218.65.209.93
-0xf93a084e # 78.8.58.249
-0x1264dd52 # 82.221.100.18
-0x0711c658 # 88.198.17.7
-0xf12e7bbe # 190.123.46.241
-0x5b02b740 # 64.183.2.91
-0x7d526dd5 # 213.109.82.125
-0x0cb04c90 # 144.76.176.12
-0x2abe1132 # 50.17.190.42
-0x61a39f58 # 88.159.163.97
-0x044a0618 # 24.6.74.4
-0xf3af7dce # 206.125.175.243
-0xb994c96d # 109.201.148.185
-0x361c5058 # 88.80.28.54
-0xca735d53 # 83.93.115.202
-0xeca743b0 # 176.67.167.236
-0xec790905 # 5.9.121.236
-0xc4d37845 # 69.120.211.196
-0xa1c4a2b2 # 178.162.196.161
-0x726fd453 # 83.212.111.114
-0x625cc6c0 # 192.198.92.98
-0x6c20132e # 46.19.32.108
-0xb7aa0c79 # 121.12.170.183
-0xc6ed983d # 61.152.237.198
-0x47e4cbc0 # 192.203.228.71
-0xa4ac75d4 # 212.117.172.164
-0xe2e59345 # 69.147.229.226
-0x4d784ad0 # 208.74.120.77
-0x18a5ec5e # 94.236.165.24
-0x481cc85b # 91.200.28.72
-0x7c6c2fd5 # 213.47.108.124
-0x5e4d6018 # 24.96.77.94
-0x5b4b6c18 # 24.108.75.91
-0xd99b4c90 # 144.76.155.217
-0xe63987dc # 220.135.57.230
-0xb817bb25 # 37.187.23.184
-0x141cfeb2 # 178.254.28.20
-0x5f005058 # 88.80.0.95
-0x0d987f47 # 71.127.152.13
-0x242a496d # 109.73.42.36
-0x3e519bc0 # 192.155.81.62
-0x02b2454b # 75.69.178.2
-0xdfaf3dc6 # 198.61.175.223
-0x888128bc # 188.40.129.136
-0x1165bb25 # 37.187.101.17
-0xabfeca5b # 91.202.254.171
-0x2ef63540 # 64.53.246.46
-0x5773c7c6 # 198.199.115.87
-0x1280dd52 # 82.221.128.18
-0x8ebcacd9 # 217.172.188.142
-0x81c439c6 # 198.57.196.129
-0x39fcfa45 # 69.250.252.57
-0x62177d41 # 65.125.23.98
-0xc975ed62 # 98.237.117.201
-0x05cff476 # 118.244.207.5
-0xdabda743 # 67.167.189.218
-0xaa1ac24e # 78.194.26.170
-0xe255a22e # 46.162.85.226
-0x88aac705 # 5.199.170.136
-0xe707c658 # 88.198.7.231
-0xa9e94b5e # 94.75.233.169
-0x2893484b # 75.72.147.40
-0x99512705 # 5.39.81.153
-0xd63970ca # 202.112.57.214
-0x45994f32 # 50.79.153.69
-0xe519a8ad # 173.168.25.229
-0x92e25f5d # 93.95.226.146
-0x8b84a9c1 # 193.169.132.139
-0x5eaa0a05 # 5.10.170.94
-0xa74de55b # 91.229.77.167
-0xb090ff62 # 98.255.144.176
-0x5eee326c # 108.50.238.94
-0xc331a679 # 121.166.49.195
-0xc1d9b72e # 46.183.217.193
-0x0c6ab982 # 130.185.106.12
-0x7362bb25 # 37.187.98.115
-0x4cfedd42 # 66.221.254.76
-0x1e09a032 # 50.160.9.30
-0xa4c34c5e # 94.76.195.164
-0x3777d9c7 # 199.217.119.55
-0x5edcf260 # 96.242.220.94
-0x3ce2b548 # 72.181.226.60
-0xd2ac0360 # 96.3.172.210
-0x2f80b992 # 146.185.128.47
-0x3e4cbb25 # 37.187.76.62
-0x3995e236 # 54.226.149.57
-0xd03977ae # 174.119.57.208
-0x953cf054 # 84.240.60.149
-0x3c654ed0 # 208.78.101.60
-0x74024c90 # 144.76.2.116
-0xa14f1155 # 85.17.79.161
-0x14ce0125 # 37.1.206.20
-0xc15ebb6a # 106.187.94.193
-0x2c08c452 # 82.196.8.44
-0xc7fd0652 # 82.6.253.199
-0x7604f8ce # 206.248.4.118
-0xffb38332 # 50.131.179.255
-0xa4c2efd5 # 213.239.194.164
-0xe9614018 # 24.64.97.233
-0xab49e557 # 87.229.73.171
-0x1648c052 # 82.192.72.22
-0x36024047 # 71.64.2.54
-0x0e8cffad # 173.255.140.14
-0x21918953 # 83.137.145.33
-0xb61f50ad # 173.80.31.182
-0x9b406b59 # 89.107.64.155
-0xaf282218 # 24.34.40.175
-0x7f1d164e # 78.22.29.127
-0x1f560da2 # 162.13.86.31
-0xe237be58 # 88.190.55.226
-0xbdeb1955 # 85.25.235.189
-0x6c0717d9 # 217.23.7.108
-0xdaf8ce62 # 98.206.248.218
-0x0f74246c # 108.36.116.15
-0xdee95243 # 67.82.233.222
-0xf23f1a56 # 86.26.63.242
-0x61bdf867 # 103.248.189.97
-0xd254c854 # 84.200.84.210
-0xc4422e4e # 78.46.66.196
-0xae0563c0 # 192.99.5.174
-0xbdb9a95f # 95.169.185.189
-0xa9eb32c6 # 198.50.235.169
-0xd9943950 # 80.57.148.217
-0x116add52 # 82.221.106.17
-0x73a54c90 # 144.76.165.115
-0xb36b525e # 94.82.107.179
-0xd734175e # 94.23.52.215
-0x333d7f76 # 118.127.61.51
-0x51431bc6 # 198.27.67.81
-0x084ae5cf # 207.229.74.8
-0xa60a236c # 108.35.10.166
-0x5c67692e # 46.105.103.92
-0x0177cf45 # 69.207.119.1
-0xa6683ac6 # 198.58.104.166
-0x7ff4ea47 # 71.234.244.127
-0x2192fab2 # 178.250.146.33
-0xa03a0f46 # 70.15.58.160
-0xfe3e39ae # 174.57.62.254
-0x2cce5fc1 # 193.95.206.44
-0xc8a6c148 # 72.193.166.200
-0x96fb7e4c # 76.126.251.150
-0x0a66c752 # 82.199.102.10
-0x6b4d2705 # 5.39.77.107
-0xeba0c118 # 24.193.160.235
-0x3ba0795b # 91.121.160.59
-0x1dccd23e # 62.210.204.29
-0x6912f3a2 # 162.243.18.105
-0x22f23c41 # 65.60.242.34
-0x65646b4a # 74.107.100.101
-0x8b9f8705 # 5.135.159.139
-0xeb9b9a95 # 149.154.155.235
-0x79fe6b4e # 78.107.254.121
-0x0536f447 # 71.244.54.5
-0x23224d61 # 97.77.34.35
-0x5d952ec6 # 198.46.149.93
-0x0cb4f736 # 54.247.180.12
-0xdc14be6d # 109.190.20.220
-0xb24609b0 # 176.9.70.178
-0xd3f79b62 # 98.155.247.211
-0x6518c836 # 54.200.24.101
-0x83a3cf42 # 66.207.163.131
-0x9b641fb0 # 176.31.100.155
-0x17fef1c0 # 192.241.254.23
-0xd508cc82 # 130.204.8.213
-0x91a4369b # 155.54.164.145
-0x39cb4a4c # 76.74.203.57
-0xbbc9536c # 108.83.201.187
-0xaf64c44a # 74.196.100.175
-0x605eca50 # 80.202.94.96
-0x0c6a6805 # 5.104.106.12
-0xd07e9d4e # 78.157.126.208
-0x78e6d3a2 # 162.211.230.120
-0x1b31eb6d # 109.235.49.27
-0xaa01feb2 # 178.254.1.170
-0x4603c236 # 54.194.3.70
-0x1ecba3b6 # 182.163.203.30
-0x0effe336 # 54.227.255.14
-0xc3fdcb36 # 54.203.253.195
-0xc290036f # 111.3.144.194
-0x4464692e # 46.105.100.68
-0x1aca7589 # 137.117.202.26
-0x59a9e52e # 46.229.169.89
-0x19aa7489 # 137.116.170.25
-0x2622c85e # 94.200.34.38
-0xa598d318 # 24.211.152.165
-0x438ec345 # 69.195.142.67
-0xc79619b9 # 185.25.150.199
-0xaf570360 # 96.3.87.175
-0x5098e289 # 137.226.152.80
-0x36add862 # 98.216.173.54
-0x83c1a2b2 # 178.162.193.131
-0x969d0905 # 5.9.157.150
-0xcf3d156c # 108.21.61.207
-0x49c1a445 # 69.164.193.73
-0xbd0b7562 # 98.117.11.189
-0x8fff1955 # 85.25.255.143
-0x1e51fe53 # 83.254.81.30
-0x28d6efd5 # 213.239.214.40
-0x2837cc62 # 98.204.55.40
-0x02f42d42 # 66.45.244.2
-0x070e3fb2 # 178.63.14.7
-0xbcb18705 # 5.135.177.188
-0x14a4e15b # 91.225.164.20
-0x82096844 # 68.104.9.130
-0xcfcb1c2e # 46.28.203.207
-0x37e27fc7 # 199.127.226.55
-0x07923748 # 72.55.146.7
-0x0c14bc2e # 46.188.20.12
-0x26100905 # 5.9.16.38
-0xcb7cd93e # 62.217.124.203
-0x3bc0d2c0 # 192.210.192.59
-0x97131b4c # 76.27.19.151
-0x6f1e5c17 # 23.92.30.111
-0xa7939f43 # 67.159.147.167
-0xb7a0bf58 # 88.191.160.183
-0xafa83a47 # 71.58.168.175
-0xcbb83f32 # 50.63.184.203
-0x5f321cb0 # 176.28.50.95
-0x52d6c3c7 # 199.195.214.82
-0xdeac5bc7 # 199.91.172.222
-0x2cf310cc # 204.16.243.44
-0x108a2bc3 # 195.43.138.16
-0x726fa14f # 79.161.111.114
-0x85bad2cc # 204.210.186.133
-0x459e4c90 # 144.76.158.69
-0x1a08b8d8 # 216.184.8.26
-0xcd7048c6 # 198.72.112.205
-0x6d5b4c90 # 144.76.91.109
-0xa66cfe7b # 123.254.108.166
-0xad730905 # 5.9.115.173
-0xdaac5bc7 # 199.91.172.218
-0x8417fd9f # 159.253.23.132
-0x41377432 # 50.116.55.65
-0x1f138632 # 50.134.19.31
-0x295a12b2 # 178.18.90.41
-0x7ac031b2 # 178.49.192.122
-0x3a87d295 # 149.210.135.58
-0xe219bc2e # 46.188.25.226
-0xf485d295 # 149.210.133.244
-0x137b6405 # 5.100.123.19
-0xcfffd9ad # 173.217.255.207
-0xafe20844 # 68.8.226.175
-0x32679a5f # 95.154.103.50
-0xa431c644 # 68.198.49.164
-0x0e5fce8c # 140.206.95.14
-0x305ef853 # 83.248.94.48
-0xad26ca32 # 50.202.38.173
-0xd9d21a54 # 84.26.210.217
-0xddd0d736 # 54.215.208.221
-0xc24ec0c7 # 199.192.78.194
-0x4aadcd5b # 91.205.173.74
-0x49109852 # 82.152.16.73
-0x9d6b3ac6 # 198.58.107.157
-0xf0aa1e8b # 139.30.170.240
-0xf1bfa343 # 67.163.191.241
-0x8a30c0ad # 173.192.48.138
-0x260f93d4 # 212.147.15.38
-0x2339e760 # 96.231.57.35
-0x8869959f # 159.149.105.136
-0xc207216c # 108.33.7.194
-0x29453448 # 72.52.69.41
-0xb651ec36 # 54.236.81.182
-0x45496259 # 89.98.73.69
-0xa23d1bcc # 204.27.61.162
-0xb39bcf43 # 67.207.155.179
-0xa1d29432 # 50.148.210.161
-0x3507c658 # 88.198.7.53
-0x4a88dd62 # 98.221.136.74
-0x27aff363 # 99.243.175.39
-0x7498ea6d # 109.234.152.116
-0x4a6785d5 # 213.133.103.74
-0x5e6d47c2 # 194.71.109.94
-0x3baba542 # 66.165.171.59
-0x045a37ae # 174.55.90.4
-0xa24dc0c7 # 199.192.77.162
-0xe981ea4d # 77.234.129.233
-0xed6ce217 # 23.226.108.237
-0x857214c6 # 198.20.114.133
-0x6b6c0464 # 100.4.108.107
-0x5a4945b8 # 184.69.73.90
-0x12f24742 # 66.71.242.18
-0xf35f42ad # 173.66.95.243
-0xfd0f5a4e # 78.90.15.253
-0xfb081556 # 86.21.8.251
-0xb24b5861 # 97.88.75.178
-0x2e114146 # 70.65.17.46
-0xb7780905 # 5.9.120.183
-0x33bb0e48 # 72.14.187.51
-0x39e26556 # 86.101.226.57
-0xa794484d # 77.72.148.167
-0x4225424d # 77.66.37.66
-0x3003795b # 91.121.3.48
-0x31c8cf44 # 68.207.200.49
-0xd65bad59 # 89.173.91.214
-0x127bc648 # 72.198.123.18
-0xf2bc4d4c # 76.77.188.242
-0x0273dc50 # 80.220.115.2
-0x4572d736 # 54.215.114.69
-0x064bf653 # 83.246.75.6
-0xcdcd126c # 108.18.205.205
-0x608281ae # 174.129.130.96
-0x4d130087 # 135.0.19.77
-0x1016f725 # 37.247.22.16
-0xba185fc0 # 192.95.24.186
-0x16c1a84f # 79.168.193.22
-0xfb697252 # 82.114.105.251
-0xa2942360 # 96.35.148.162
-0x53083b6c # 108.59.8.83
-0x0583f1c0 # 192.241.131.5
-0x2d5a2441 # 65.36.90.45
-0xc172aa43 # 67.170.114.193
-0xcd11cf36 # 54.207.17.205
-0x7b14ed62 # 98.237.20.123
-0x5c94f1c0 # 192.241.148.92
-0x7c23132e # 46.19.35.124
-0x39965a6f # 111.90.150.57
-0x7890e24e # 78.226.144.120
-0xa38ec447 # 71.196.142.163
-0xc187f1c0 # 192.241.135.193
-0xef80b647 # 71.182.128.239
-0xf20a7432 # 50.116.10.242
-0x7ad1d8d2 # 210.216.209.122
-0x869e2ec6 # 198.46.158.134
-0xccdb5c5d # 93.92.219.204
-0x9d11f636 # 54.246.17.157
-0x2161bb25 # 37.187.97.33
-0x7599f889 # 137.248.153.117
-0x2265ecad # 173.236.101.34
-0x0f4f0e55 # 85.14.79.15
-0x7d25854a # 74.133.37.125
-0xf857e360 # 96.227.87.248
-0xf83f3d6c # 108.61.63.248
-0x9cc93bb8 # 184.59.201.156
-0x02716857 # 87.104.113.2
-0x5dd8a177 # 119.161.216.93
-0x8adc6cd4 # 212.108.220.138
-0xe5613d46 # 70.61.97.229
-0x6a734f50 # 80.79.115.106
-0x2a5c3bae # 174.59.92.42
-0x4a04c3d1 # 209.195.4.74
-0xe4613d46 # 70.61.97.228
-0x8426f4bc # 188.244.38.132
-0x3e1b5fc0 # 192.95.27.62
-0x0d5a3c18 # 24.60.90.13
-0xd0f6d154 # 84.209.246.208
-0x21c7ff5e # 94.255.199.33
-0xeb3f3d6c # 108.61.63.235
-0x9da5edc0 # 192.237.165.157
-0x5d753b81 # 129.59.117.93
-0x0d8d53d4 # 212.83.141.13
-0x2613f018 # 24.240.19.38
-0x4443698d # 141.105.67.68
-0x8ca1edcd # 205.237.161.140
-0x10ed3f4e # 78.63.237.16
-0x789b403a # 58.64.155.120
-0x7b984a4b # 75.74.152.123
-0x964ebc25 # 37.188.78.150
-0x7520ee60 # 96.238.32.117
-0x4f4828bc # 188.40.72.79
-0x115c407d # 125.64.92.17
-0x32dd0667 # 103.6.221.50
-0xa741715e # 94.113.65.167
-0x1d3f3532 # 50.53.63.29
-0x817d1f56 # 86.31.125.129
-0x2f99a552 # 82.165.153.47
-0x6b2a5956 # 86.89.42.107
-0x8d4f4f05 # 5.79.79.141
-0xd23c1e17 # 23.30.60.210
-0x98993748 # 72.55.153.152
-0x2c92e536 # 54.229.146.44
-0x237ebdc3 # 195.189.126.35
-0xa762fb43 # 67.251.98.167
-0x32016b71 # 113.107.1.50
-0xd0e7cf79 # 121.207.231.208
-0x7d35bdd5 # 213.189.53.125
-0x53dac3d2 # 210.195.218.83
-0x31016b71 # 113.107.1.49
-0x7fb8f8ce # 206.248.184.127
-0x9a38c232 # 50.194.56.154
-0xefaa42ad # 173.66.170.239
-0x876b823d # 61.130.107.135
-0x18175347 # 71.83.23.24
-0xdb46597d # 125.89.70.219
-0xd2c168da # 218.104.193.210
-0xcd6fe9dc # 220.233.111.205
-0x45272e4e # 78.46.39.69
-0x8d4bca5b # 91.202.75.141
-0xa4043d47 # 71.61.4.164
-0xaab7aa47 # 71.170.183.170
-0x202881ae # 174.129.40.32
-0xa4aef160 # 96.241.174.164
-0xecd7e6bc # 188.230.215.236
-0x391359ad # 173.89.19.57
-0xd8cc9318 # 24.147.204.216
-0xbbeee52e # 46.229.238.187
-0x077067b0 # 176.103.112.7
-0xebd39d62 # 98.157.211.235
-0x0cedc547 # 71.197.237.12
-0x23d3e15e # 94.225.211.35
-0xa5a81318 # 24.19.168.165
-0x179a32c6 # 198.50.154.23
-0xe4d3483d # 61.72.211.228
-0x03680905 # 5.9.104.3
-0xe8018abc # 188.138.1.232
-0xdde9ef5b # 91.239.233.221
-0x438b8705 # 5.135.139.67
-0xb48224a0 # 160.36.130.180
-0xcbd69218 # 24.146.214.203
-0x9075795b # 91.121.117.144
-0xc6411c3e # 62.28.65.198
-0x03833f5c # 92.63.131.3
-0xf33f8b5e # 94.139.63.243
-0x495e464b # 75.70.94.73
-0x83c8e65b # 91.230.200.131
-0xac09cd25 # 37.205.9.172
-0xdaabc547 # 71.197.171.218
-0x7665a553 # 83.165.101.118
-0xc5263718 # 24.55.38.197
-0x2fd0c5cd # 205.197.208.47
-0x22224d61 # 97.77.34.34
-0x3e954048 # 72.64.149.62
-0xfaa37557 # 87.117.163.250
-0x36dbc658 # 88.198.219.54
-0xa81453d0 # 208.83.20.168
-0x5a941f5d # 93.31.148.90
-0xa598ea60 # 96.234.152.165
-0x65384ac6 # 198.74.56.101
-0x10aaa545 # 69.165.170.16
-0xaaab795b # 91.121.171.170
-0xdda7024c # 76.2.167.221
-0x0966f4c6 # 198.244.102.9
-0x68571c08 # 8.28.87.104
-0x8b40ee59 # 89.238.64.139
-0x33ac096c # 108.9.172.51
-0x844b4c4b # 75.76.75.132
-0xd392254d # 77.37.146.211
-0xba4d5a46 # 70.90.77.186
-0x63029653 # 83.150.2.99
-0xf655f636 # 54.246.85.246
-0xbe4c4bb1 # 177.75.76.190
-0x45dad036 # 54.208.218.69
-0x204bc052 # 82.192.75.32
-0x06c3a2b2 # 178.162.195.6
-0xf31fba6a # 106.186.31.243
-0xb21f09b0 # 176.9.31.178
-0x540d0751 # 81.7.13.84
-0xc7b46a57 # 87.106.180.199
-0x6a11795b # 91.121.17.106
-0x3d514045 # 69.64.81.61
-0x0318aa6d # 109.170.24.3
-0x30306ec3 # 195.110.48.48
-0x5c077432 # 50.116.7.92
-0x259ae46d # 109.228.154.37
-0x82bbd35f # 95.211.187.130
-0xae4222c0 # 192.34.66.174
-0x254415d4 # 212.21.68.37
-0xbd5f574b # 75.87.95.189
-0xd8fd175e # 94.23.253.216
-0x0a3f38c3 # 195.56.63.10
-0x2dce6bb8 # 184.107.206.45
-0xc201d058 # 88.208.1.194
-0x17fca5bc # 188.165.252.23
-0xe8453cca # 202.60.69.232
-0xd361f636 # 54.246.97.211
-0xa0d9edc0 # 192.237.217.160
-0x2f232e4e # 78.46.35.47
-0x134e116c # 108.17.78.19
-0x61ddc058 # 88.192.221.97
-0x05ba7283 # 131.114.186.5
-0xe1f7ed5b # 91.237.247.225
-0x040ec452 # 82.196.14.4
-0x4b672e4e # 78.46.103.75
-0xe4efa36d # 109.163.239.228
-0x47dca52e # 46.165.220.71
-0xe9332e4e # 78.46.51.233
-0xa3acb992 # 146.185.172.163
-0x24714c90 # 144.76.113.36
-0xa8cc8632 # 50.134.204.168
-0x26b1ce6d # 109.206.177.38
-0x264e53d4 # 212.83.78.38
-0xd3d2718c # 140.113.210.211
-0x225534ad # 173.52.85.34
-0xe289f3a2 # 162.243.137.226
-0x87341717 # 23.23.52.135
-0x9255ad4f # 79.173.85.146
-0x184bbb25 # 37.187.75.24
-0x885c7abc # 188.122.92.136
-0x3a6e9ac6 # 198.154.110.58
-0x1924185e # 94.24.36.25
-0xb73d4c90 # 144.76.61.183
-0x946d807a # 122.128.109.148
-0xa0d78e3f # 63.142.215.160
-0x5a16bb25 # 37.187.22.90
-0xcb09795b # 91.121.9.203
-0x8d0de657 # 87.230.13.141
-0x630b8b25 # 37.139.11.99
-0xe572c6cf # 207.198.114.229
-0x2b3f1118 # 24.17.63.43
-0x4242a91f # 31.169.66.66
-0x32990905 # 5.9.153.50
-0x058b0905 # 5.9.139.5
-0xe266fc60 # 96.252.102.226
-0xbe66c5b0 # 176.197.102.190
-0xcc98e46d # 109.228.152.204
-0x698c943e # 62.148.140.105
-0x44bd0cc3 # 195.12.189.68
-0x865c7abc # 188.122.92.134
-0x771764d3 # 211.100.23.119
-0x4675d655 # 85.214.117.70
-0x354e4826 # 38.72.78.53
-0xb67ac152 # 82.193.122.182
-0xaeccf285 # 133.242.204.174
-0xea625b4e # 78.91.98.234
-0xbcd6031f # 31.3.214.188
-0x5e81eb18 # 24.235.129.94
-0x74b347ce # 206.71.179.116
-0x3ca56ac1 # 193.106.165.60
-0x54ee4546 # 70.69.238.84
-0x38a8175e # 94.23.168.56
-0xa3c21155 # 85.17.194.163
-0x2f01576d # 109.87.1.47
-0x5d7ade50 # 80.222.122.93
-0xa003ae48 # 72.174.3.160
-0x2bc1d31f # 31.211.193.43
-0x13f5094c # 76.9.245.19
-0x7ab32648 # 72.38.179.122
-0x542e9fd5 # 213.159.46.84
-0x53136bc1 # 193.107.19.83
-0x7fdf51c0 # 192.81.223.127
-0x802197b2 # 178.151.33.128
-0xa2d2cc5b # 91.204.210.162
-0x6b5f4bc0 # 192.75.95.107
+# IPv4 nodes (generated using contrib/seeds/makeseeds.py)
+1.33.197.110
+1.34.180.245
+1.202.128.218
+2.35.195.25
+5.100.123.19
+5.175.145.169
+5.199.133.193
+5.199.151.10
+5.228.1.230
+14.200.200.145
+18.228.0.188
+18.228.0.200
+23.30.243.153
+23.88.232.49
+23.99.105.9
+23.226.137.208
+23.227.177.161
+23.227.191.50
+23.229.45.32
+23.236.144.69
+23.253.148.113
+23.253.241.22
+23.255.227.231
+24.20.205.222
+24.23.120.252
+24.94.98.96
+24.98.95.201
+24.111.90.55
+24.119.119.105
+24.138.25.149
+31.3.214.45
+31.186.87.46
+31.186.101.98
+31.186.250.186
+31.204.153.107
+37.44.16.231
+37.44.44.11
+37.120.168.204
+37.143.86.26
+37.187.75.24
+37.188.68.169
+37.192.95.150
+37.201.246.116
+37.205.10.140
+46.10.210.17
+46.19.138.154
+46.28.204.123
+46.28.205.67
+46.38.235.229
+46.163.76.230
+46.166.162.91
+46.173.190.50
+46.227.66.132
+46.229.238.187
+46.236.116.209
+47.55.14.65
+50.7.252.229
+50.46.159.91
+50.78.49.181
+50.78.231.57
+50.79.153.65
+50.116.34.44
+50.126.86.253
+50.142.41.23
+50.199.113.193
+50.200.78.107
+50.206.138.177
+50.252.52.49
+54.165.25.75
+54.169.107.40
+54.179.190.56
+54.187.82.121
+54.246.85.246
+58.74.7.205
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+61.62.58.38
+61.63.91.72
+61.63.91.112
+61.72.211.228
+62.43.40.154
+62.43.130.178
+62.80.185.213
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+62.173.139.58
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+63.141.228.138
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+63.223.84.145
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+64.31.110.50
+64.34.121.45
+64.114.6.42
+64.140.125.98
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+65.30.47.116
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+65.111.189.26
+66.68.10.30
+66.114.33.250
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+66.175.215.135
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+66.244.98.111
+67.162.238.30
+67.169.255.17
+67.183.173.25
+67.219.233.140
+67.227.240.115
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+68.43.114.66
+68.52.33.36
+68.198.245.241
+69.12.226.165
+69.13.198.188
+69.15.179.62
+69.39.239.47
+69.47.45.87
+69.62.217.206
+69.64.42.31
+69.64.81.61
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+70.61.97.228
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+71.59.152.182
+71.198.248.151
+71.200.242.89
+71.225.179.157
+72.14.187.51
+72.38.34.180
+72.52.72.187
+72.91.144.182
+72.167.49.217
+72.201.243.55
+72.223.60.249
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+73.26.101.228
+73.50.158.200
+73.181.204.170
+74.57.199.180
+74.63.222.226
+74.81.231.21
+74.193.126.82
+74.207.235.164
+75.83.197.114
+75.144.114.9
+76.112.5.247
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+77.37.240.142
+77.57.202.107
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+77.245.78.2
+78.8.58.249
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+78.157.205.6
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+79.161.111.114
+80.100.189.3
+80.147.140.121
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+80.220.99.227
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+80.241.1.7
+81.23.191.243
+81.38.11.202
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+82.39.156.137
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+82.130.45.40
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+82.221.128.35
+82.221.131.177
+82.233.225.205
+83.0.249.146
+83.89.31.249
+83.128.29.231
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+83.143.130.56
+83.150.2.99
+83.150.9.196
+83.161.64.45
+83.212.103.212
+83.212.111.114
+83.246.75.8
+83.254.81.31
+83.254.150.54
+84.2.34.104
+84.15.61.60
+84.17.25.135
+84.42.144.19
+84.212.210.135
+84.215.165.231
+84.238.140.176
+84.240.31.184
+85.25.214.137
+85.139.163.132
+85.199.4.228
+85.214.61.209
+85.214.108.77
+86.123.16.17
+87.48.42.199
+87.104.168.104
+87.229.73.171
+87.236.196.77
+88.97.56.98
+88.134.178.89
+88.150.233.19
+88.168.133.3
+88.208.18.246
+88.208.33.202
+89.18.28.21
+89.85.220.84
+89.163.227.28
+89.184.83.60
+89.231.96.83
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+91.152.219.35
+91.197.10.234
+91.209.77.101
+91.210.106.147
+91.214.200.205
+91.223.115.38
+91.234.48.232
+91.250.86.18
+92.27.7.209
+92.255.207.73
+93.74.163.234
+93.84.114.106
+93.152.166.29
+93.171.216.221
+93.185.177.71
+94.19.12.244
+94.42.115.50
+94.79.177.206
+94.136.147.119
+94.143.245.5
+94.188.50.39
+94.190.227.112
+94.198.135.29
+94.226.107.86
+94.242.219.90
+94.242.229.168
+94.244.160.84
+95.31.10.209
+95.85.25.41
+95.105.161.136
+95.154.165.45
+95.154.200.216
+95.167.109.125
+95.211.125.231
+95.211.216.235
+96.33.25.17
+96.43.130.178
+97.118.8.236
+98.102.6.125
+98.202.20.45
+98.217.125.225
+98.234.210.111
+98.237.20.123
+98.255.144.176
+99.113.64.43
+99.229.22.8
+103.1.212.19
+103.30.42.189
+103.224.165.48
+103.243.94.140
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+106.185.38.174
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+109.73.42.36
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+109.163.235.239
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+109.228.152.2
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+109.230.220.125
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+109.235.69.84
+112.124.71.0
+113.146.68.251
+115.29.17.82
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+117.41.162.184
+118.27.8.170
+119.230.7.211
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+121.172.8.100
+122.128.109.148
+123.231.224.63
+128.175.195.31
+128.199.164.96
+128.199.254.244
+129.97.69.76
+129.123.7.7
+129.123.7.39
+129.186.17.17
+131.247.169.190
+133.242.209.63
+134.102.94.38
+134.119.17.145
+137.116.160.176
+137.226.34.42
+138.210.217.170
+141.255.166.194
+143.215.129.126
+144.76.244.19
+146.148.52.162
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+146.185.19.30
+146.185.142.86
+146.185.253.51
+148.251.6.214
+149.154.155.235
+149.210.133.244
+151.224.248.252
+153.121.75.229
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+154.20.2.139
+157.13.61.5
+158.58.173.48
+159.253.23.132
+162.209.110.218
+162.213.254.205
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+162.245.217.119
+162.248.102.117
+162.251.108.53
+162.254.149.139
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+166.70.94.106
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+173.26.49.43
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+173.80.114.197
+173.167.214.243
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+173.246.107.34
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+174.2.213.209
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+175.126.124.91
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+176.10.116.242
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+178.78.250.3
+178.155.86.226
+178.175.134.35
+178.248.111.4
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+182.213.208.28
+184.68.2.46
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+184.107.139.58
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+185.61.119.2
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+192.0.130.142
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+193.0.109.3
+193.77.50.208
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+193.150.121.37
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+202.60.69.232
+203.183.151.39
+203.219.14.204
+204.44.123.109
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+204.45.120.178
+206.190.134.44
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+207.244.73.8
+208.66.30.27
+209.81.9.223
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+210.73.27.33
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+212.71.235.114
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+212.114.48.31
+212.174.151.118
+213.66.205.194
+213.129.248.139
+213.136.87.34
+213.165.82.133
+213.167.17.6
+213.179.158.253
+213.189.53.125
+213.222.208.93
+216.49.158.161
+216.55.143.154
+216.131.91.100
+216.245.206.181
+216.250.138.230
+217.11.225.189
+217.23.6.133
+217.75.88.178
+217.172.143.140
+217.195.169.209
+217.196.248.106
+219.138.161.162
+222.167.248.90
+223.18.254.55
 
 # Onion nodes
 bitcoinostk4e4re.onion:8333
diff --git a/src/Makefile.am b/src/Makefile.am
index 69b3a6d4f1..009c3c5196 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -37,7 +37,7 @@ $(LIBSECP256K1): $(wildcard secp256k1/src/*) $(wildcard secp256k1/include/*)
 
 # Make is not made aware of per-object dependencies to avoid limiting building parallelization
 # But to build the less dependent modules first, we manually select their order here:
-noinst_LIBRARIES = \
+EXTRA_LIBRARIES = \
   crypto/libbitcoin_crypto.a \
   libbitcoin_util.a \
   libbitcoin_common.a \
@@ -46,7 +46,7 @@ noinst_LIBRARIES = \
   libbitcoin_cli.a
 if ENABLE_WALLET
 BITCOIN_INCLUDES += $(BDB_CPPFLAGS)
-noinst_LIBRARIES += libbitcoin_wallet.a
+EXTRA_LIBRARIES += libbitcoin_wallet.a
 endif
 
 if BUILD_BITCOIN_LIBS
@@ -74,11 +74,12 @@ BITCOIN_CORE_H = \
   alert.h \
   allocators.h \
   amount.h \
+  arith_uint256.h \
   base58.h \
   bloom.h \
   chain.h \
-  chainparams.h \
   chainparamsbase.h \
+  chainparams.h \
   chainparamsseeds.h \
   checkpoints.h \
   checkqueue.h \
@@ -87,8 +88,6 @@ BITCOIN_CORE_H = \
   coins.h \
   compat.h \
   compressor.h \
-  primitives/block.h \
-  primitives/transaction.h \
   core_io.h \
   crypter.h \
   db.h \
@@ -101,12 +100,15 @@ BITCOIN_CORE_H = \
   leveldbwrapper.h \
   limitedmap.h \
   main.h \
+  merkleblock.h \
   miner.h \
   mruset.h \
   netbase.h \
   net.h \
   noui.h \
   pow.h \
+  primitives/block.h \
+  primitives/transaction.h \
   protocol.h \
   pubkey.h \
   random.h \
@@ -114,11 +116,11 @@ BITCOIN_CORE_H = \
   rpcprotocol.h \
   rpcserver.h \
   script/interpreter.h \
+  script/script_error.h \
   script/script.h \
   script/sigcache.h \
   script/sign.h \
   script/standard.h \
-  script/script_error.h \
   serialize.h \
   streams.h \
   sync.h \
@@ -131,13 +133,13 @@ BITCOIN_CORE_H = \
   uint256.h \
   undo.h \
   util.h \
-  utilstrencodings.h \
   utilmoneystr.h \
+  utilstrencodings.h \
   utiltime.h \
   version.h \
+  walletdb.h \
   wallet.h \
   wallet_ismine.h \
-  walletdb.h \
   compat/sanity.h
 
 JSON_H = \
@@ -168,6 +170,7 @@ libbitcoin_server_a_SOURCES = \
   init.cpp \
   leveldbwrapper.cpp \
   main.cpp \
+  merkleblock.cpp \
   miner.cpp \
   net.cpp \
   noui.cpp \
@@ -206,14 +209,12 @@ crypto_libbitcoin_crypto_a_SOURCES = \
   crypto/sha256.cpp \
   crypto/sha512.cpp \
   crypto/hmac_sha256.cpp \
-  crypto/rfc6979_hmac_sha256.cpp \
   crypto/hmac_sha512.cpp \
   crypto/ripemd160.cpp \
   crypto/common.h \
   crypto/sha256.h \
   crypto/sha512.h \
   crypto/hmac_sha256.h \
-  crypto/rfc6979_hmac_sha256.h \
   crypto/hmac_sha512.h \
   crypto/sha1.h \
   crypto/ripemd160.h
@@ -230,6 +231,7 @@ univalue_libbitcoin_univalue_a_SOURCES = \
 libbitcoin_common_a_CPPFLAGS = $(BITCOIN_INCLUDES)
 libbitcoin_common_a_SOURCES = \
   allocators.cpp \
+  arith_uint256.cpp \
   amount.cpp \
   base58.cpp \
   chainparams.cpp \
@@ -259,18 +261,18 @@ libbitcoin_common_a_SOURCES = \
 # backward-compatibility objects and their sanity checks are linked.
 libbitcoin_util_a_CPPFLAGS = $(BITCOIN_INCLUDES)
 libbitcoin_util_a_SOURCES = \
-  compat/strnlen.cpp \
-  compat/glibc_sanity.cpp \
-  compat/glibcxx_sanity.cpp \
   chainparamsbase.cpp \
   clientversion.cpp \
+  compat/glibc_sanity.cpp \
+  compat/glibcxx_sanity.cpp \
+  compat/strnlen.cpp \
   random.cpp \
   rpcprotocol.cpp \
   sync.cpp \
   uint256.cpp \
   util.cpp \
-  utilstrencodings.cpp \
   utilmoneystr.cpp \
+  utilstrencodings.cpp \
   utiltime.cpp \
   $(BITCOIN_CORE_H)
 
@@ -289,6 +291,14 @@ nodist_libbitcoin_util_a_SOURCES = $(srcdir)/obj/build.h
 #
 
 # bitcoind binary #
+bitcoind_SOURCES = bitcoind.cpp
+bitcoind_CPPFLAGS = $(BITCOIN_INCLUDES)
+bitcoind_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+
+if TARGET_WINDOWS
+bitcoind_SOURCES += bitcoind-res.rc
+endif
+
 bitcoind_LDADD = \
   $(LIBBITCOIN_SERVER) \
   $(LIBBITCOIN_COMMON) \
@@ -302,67 +312,59 @@ bitcoind_LDADD = \
 if ENABLE_WALLET
 bitcoind_LDADD += libbitcoin_wallet.a
 endif
-bitcoind_SOURCES = bitcoind.cpp
+
+bitcoind_LDADD += $(BOOST_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS)
 #
 
+# bitcoin-cli binary #
+bitcoin_cli_SOURCES = bitcoin-cli.cpp
+bitcoin_cli_CPPFLAGS = $(BITCOIN_INCLUDES)
+bitcoin_cli_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+
 if TARGET_WINDOWS
-bitcoind_SOURCES += bitcoind-res.rc
+bitcoin_cli_SOURCES += bitcoin-cli-res.rc
 endif
 
-bitcoind_LDADD += $(BOOST_LIBS) $(BDB_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS) $(MINIUPNPC_LIBS)
-bitcoind_CPPFLAGS = $(BITCOIN_INCLUDES)
-bitcoind_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
-
-# bitcoin-cli binary #
 bitcoin_cli_LDADD = \
   $(LIBBITCOIN_CLI) \
   $(LIBBITCOIN_UTIL) \
-  $(BOOST_LIBS) \
-  $(SSL_LIBS) \
-  $(CRYPTO_LIBS)
-
-bitcoin_cli_SOURCES = \
-  bitcoin-cli.cpp
+  $(LIBSECP256K1)
 
-bitcoin_cli_CPPFLAGS = $(BITCOIN_INCLUDES)
+bitcoin_cli_LDADD += $(BOOST_LIBS) $(SSL_LIBS) $(CRYPTO_LIBS)
 #
 
 # bitcoin-tx binary #
+bitcoin_tx_SOURCES = bitcoin-tx.cpp
+bitcoin_tx_CPPFLAGS = $(BITCOIN_INCLUDES)
+bitcoin_tx_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
+
 bitcoin_tx_LDADD = \
   $(LIBBITCOIN_UNIVALUE) \
   $(LIBBITCOIN_COMMON) \
   $(LIBBITCOIN_UTIL) \
   $(LIBBITCOIN_CRYPTO) \
-  $(LIBSECP256K1) \
-  $(BOOST_LIBS) \
-  $(CRYPTO_LIBS)
+  $(LIBSECP256K1)
 
-bitcoin_tx_SOURCES = bitcoin-tx.cpp
-bitcoin_tx_CPPFLAGS = $(BITCOIN_INCLUDES)
+bitcoin_tx_LDADD += $(BOOST_LIBS) $(CRYPTO_LIBS)
 #
-bitcoin_tx_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
-
-if TARGET_WINDOWS
-bitcoin_cli_SOURCES += bitcoin-cli-res.rc
-endif
-bitcoin_cli_LDFLAGS = $(RELDFLAGS) $(AM_LDFLAGS) $(LIBTOOL_APP_LDFLAGS)
 
+# bitcoinconsensus library #
 if BUILD_BITCOIN_LIBS
 include_HEADERS = script/bitcoinconsensus.h
 libbitcoinconsensus_la_SOURCES = \
-  primitives/transaction.cpp \
   crypto/hmac_sha512.cpp \
+  crypto/ripemd160.cpp \
   crypto/sha1.cpp \
   crypto/sha256.cpp \
   crypto/sha512.cpp \
-  crypto/ripemd160.cpp \
   eccryptoverify.cpp \
   ecwrapper.cpp \
   hash.cpp \
+  primitives/transaction.cpp \
   pubkey.cpp \
-  script/script.cpp \
-  script/interpreter.cpp \
   script/bitcoinconsensus.cpp \
+  script/interpreter.cpp \
+  script/script.cpp \
   uint256.cpp \
   utilstrencodings.cpp
 
@@ -374,10 +376,12 @@ endif
 libbitcoinconsensus_la_LDFLAGS = -no-undefined $(RELDFLAGS)
 libbitcoinconsensus_la_LIBADD = $(CRYPTO_LIBS)
 libbitcoinconsensus_la_CPPFLAGS = $(CRYPTO_CFLAGS) -I$(builddir)/obj -DBUILD_BITCOIN_INTERNAL
+
 if USE_LIBSECP256K1
 libbitcoinconsensus_la_LIBADD += secp256k1/libsecp256k1.la
 endif
 endif
+#
 
 CLEANFILES = leveldb/libleveldb.a leveldb/libmemenv.a *.gcda *.gcno
 
diff --git a/src/Makefile.qt.include b/src/Makefile.qt.include
index 898337ad6f..31fe3a9f69 100644
--- a/src/Makefile.qt.include
+++ b/src/Makefile.qt.include
@@ -1,5 +1,5 @@
 bin_PROGRAMS += qt/bitcoin-qt
-noinst_LIBRARIES += qt/libbitcoinqt.a
+EXTRA_LIBRARIES += qt/libbitcoinqt.a
 
 # bitcoin qt core #
 QT_TS = \
@@ -191,6 +191,7 @@ BITCOIN_QT_H = \
   qt/receiverequestdialog.h \
   qt/recentrequeststablemodel.h \
   qt/rpcconsole.h \
+  qt/scicon.h \
   qt/sendcoinsdialog.h \
   qt/sendcoinsentry.h \
   qt/signverifymessagedialog.h \
@@ -212,21 +213,21 @@ BITCOIN_QT_H = \
 RES_ICONS = \
   qt/res/icons/add.png \
   qt/res/icons/address-book.png \
+  qt/res/icons/about.png \
+  qt/res/icons/about_qt.png \
   qt/res/icons/bitcoin.ico \
   qt/res/icons/bitcoin.png \
-  qt/res/icons/bitcoin_testnet.ico \
-  qt/res/icons/bitcoin_testnet.png \
   qt/res/icons/clock1.png \
   qt/res/icons/clock2.png \
   qt/res/icons/clock3.png \
   qt/res/icons/clock4.png \
   qt/res/icons/clock5.png \
   qt/res/icons/configure.png \
-  qt/res/icons/connect0_16.png \
-  qt/res/icons/connect1_16.png \
-  qt/res/icons/connect2_16.png \
-  qt/res/icons/connect3_16.png \
-  qt/res/icons/connect4_16.png \
+  qt/res/icons/connect0.png \
+  qt/res/icons/connect1.png \
+  qt/res/icons/connect2.png \
+  qt/res/icons/connect3.png \
+  qt/res/icons/connect4.png \
   qt/res/icons/debugwindow.png \
   qt/res/icons/edit.png \
   qt/res/icons/editcopy.png \
@@ -237,11 +238,12 @@ RES_ICONS = \
   qt/res/icons/eye_plus.png \
   qt/res/icons/filesave.png \
   qt/res/icons/history.png \
+  qt/res/icons/info.png \
   qt/res/icons/key.png \
   qt/res/icons/lock_closed.png \
   qt/res/icons/lock_open.png \
+  qt/res/icons/open.png \
   qt/res/icons/overview.png \
-  qt/res/icons/qrcode.png \
   qt/res/icons/quit.png \
   qt/res/icons/receive.png \
   qt/res/icons/remove.png \
@@ -254,9 +256,7 @@ RES_ICONS = \
   qt/res/icons/tx_input.png \
   qt/res/icons/tx_output.png \
   qt/res/icons/tx_mined.png \
-  qt/res/icons/unit_btc.png \
-  qt/res/icons/unit_mbtc.png \
-  qt/res/icons/unit_ubtc.png
+  qt/res/icons/verify.png
 
 BITCOIN_QT_CPP = \
   qt/bitcoinaddressvalidator.cpp \
@@ -275,10 +275,14 @@ BITCOIN_QT_CPP = \
   qt/qvalidatedlineedit.cpp \
   qt/qvaluecombobox.cpp \
   qt/rpcconsole.cpp \
+  qt/scicon.cpp \
   qt/splashscreen.cpp \
   qt/trafficgraphwidget.cpp \
-  qt/utilitydialog.cpp \
-  qt/winshutdownmonitor.cpp
+  qt/utilitydialog.cpp
+
+if TARGET_WINDOWS
+BITCOIN_QT_CPP += qt/winshutdownmonitor.cpp
+endif
 
 if ENABLE_WALLET
 BITCOIN_QT_CPP += \
@@ -310,10 +314,7 @@ BITCOIN_QT_CPP += \
   qt/walletview.cpp
 endif
 
-RES_IMAGES = \
-  qt/res/images/about.png \
-  qt/res/images/splash.png \
-  qt/res/images/splash_testnet.png
+RES_IMAGES = 
 
 RES_MOVIES = $(wildcard qt/res/movies/spinner-*.png)
 
@@ -367,7 +368,7 @@ qt_bitcoin_qt_LIBTOOLFLAGS = --tag CXX
 #locale/foo.ts -> locale/foo.qm
 QT_QM=$(QT_TS:.ts=.qm)
 
-.SECONDARY: $(QT_QM)
+SECONDARY: $(QT_QM)
 
 qt/bitcoinstrings.cpp: $(libbitcoin_server_a_SOURCES) $(libbitcoin_wallet_a_SOURCES)
 	@test -n $(XGETTEXT) || echo "xgettext is required for updating translations"
diff --git a/src/Makefile.test.include b/src/Makefile.test.include
index 9e9f478d8f..90494439fa 100644
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -1,4 +1,4 @@
-TESTS += test/test_bitcoin test/bitcoin-util-test.py
+TESTS += test/test_bitcoin
 bin_PROGRAMS += test/test_bitcoin
 TEST_SRCDIR = test
 TEST_BINARY=test/test_bitcoin$(EXEEXT)
@@ -14,13 +14,12 @@ EXTRA_DIST += \
 	test/data/tt-locktime317000-out.hex \
 	test/data/tx394b54bb.hex \
 	test/data/txcreate1.hex \
-	test/data/txcreate2.hex
+	test/data/txcreate2.hex \
+	test/data/txcreatesign.hex
 
 JSON_TEST_FILES = \
   test/data/script_valid.json \
   test/data/base58_keys_valid.json \
-  test/data/sig_canonical.json \
-  test/data/sig_noncanonical.json \
   test/data/base58_encode_decode.json \
   test/data/base58_keys_invalid.json \
   test/data/script_invalid.json \
@@ -33,6 +32,7 @@ RAW_TEST_FILES = test/data/alertTests.raw
 GENERATED_TEST_FILES = $(JSON_TEST_FILES:.json=.json.h) $(RAW_TEST_FILES:.raw=.raw.h)
 
 BITCOIN_TESTS =\
+  test/arith_uint256_tests.cpp \
   test/bignum.h \
   test/alert_tests.cpp \
   test/allocator_tests.cpp \
@@ -56,6 +56,7 @@ BITCOIN_TESTS =\
   test/netbase_tests.cpp \
   test/pmt_tests.cpp \
   test/rpc_tests.cpp \
+  test/sanity_tests.cpp \
   test/script_P2SH_tests.cpp \
   test/script_tests.cpp \
   test/scriptnum_tests.cpp \
@@ -105,6 +106,8 @@ bitcoin_test_clean : FORCE
 	rm -f $(CLEAN_BITCOIN_TEST) $(test_test_bitcoin_OBJECTS) $(TEST_BINARY)
 
 check-local:
+	@echo "Running test/bitcoin-util-test.py..."
+	$(AM_V_at)srcdir=$(srcdir) PYTHONPATH=$(builddir)/test $(srcdir)/test/bitcoin-util-test.py
 	$(AM_V_at)$(MAKE) $(AM_MAKEFLAGS) -C secp256k1 check
 
 %.json.h: %.json
diff --git a/src/addrman.cpp b/src/addrman.cpp
index 1982db52ae..1e08ae772e 100644
--- a/src/addrman.cpp
+++ b/src/addrman.cpp
@@ -15,12 +15,12 @@ int CAddrInfo::GetTriedBucket(const std::vector<unsigned char>& nKey) const
     CDataStream ss1(SER_GETHASH, 0);
     std::vector<unsigned char> vchKey = GetKey();
     ss1 << nKey << vchKey;
-    uint64_t hash1 = Hash(ss1.begin(), ss1.end()).GetLow64();
+    uint64_t hash1 = Hash(ss1.begin(), ss1.end()).GetCheapHash();
 
     CDataStream ss2(SER_GETHASH, 0);
     std::vector<unsigned char> vchGroupKey = GetGroup();
     ss2 << nKey << vchGroupKey << (hash1 % ADDRMAN_TRIED_BUCKETS_PER_GROUP);
-    uint64_t hash2 = Hash(ss2.begin(), ss2.end()).GetLow64();
+    uint64_t hash2 = Hash(ss2.begin(), ss2.end()).GetCheapHash();
     return hash2 % ADDRMAN_TRIED_BUCKET_COUNT;
 }
 
@@ -30,11 +30,11 @@ int CAddrInfo::GetNewBucket(const std::vector<unsigned char>& nKey, const CNetAd
     std::vector<unsigned char> vchGroupKey = GetGroup();
     std::vector<unsigned char> vchSourceGroupKey = src.GetGroup();
     ss1 << nKey << vchGroupKey << vchSourceGroupKey;
-    uint64_t hash1 = Hash(ss1.begin(), ss1.end()).GetLow64();
+    uint64_t hash1 = Hash(ss1.begin(), ss1.end()).GetCheapHash();
 
     CDataStream ss2(SER_GETHASH, 0);
     ss2 << nKey << vchSourceGroupKey << (hash1 % ADDRMAN_NEW_BUCKETS_PER_SOURCE_GROUP);
-    uint64_t hash2 = Hash(ss2.begin(), ss2.end()).GetLow64();
+    uint64_t hash2 = Hash(ss2.begin(), ss2.end()).GetCheapHash();
     return hash2 % ADDRMAN_NEW_BUCKET_COUNT;
 }
 
diff --git a/src/alert.cpp b/src/alert.cpp
index 64399a4260..323939913b 100644
--- a/src/alert.cpp
+++ b/src/alert.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -149,7 +149,7 @@ bool CAlert::CheckSignature() const
 {
     CPubKey key(Params().AlertKey());
     if (!key.Verify(Hash(vchMsg.begin(), vchMsg.end()), vchSig))
-        return error("CAlert::CheckSignature() : verify signature failed");
+        return error("CAlert::CheckSignature(): verify signature failed");
 
     // Now unserialize the data
     CDataStream sMsg(vchMsg, SER_NETWORK, PROTOCOL_VERSION);
diff --git a/src/alert.h b/src/alert.h
index 96c203b557..af42171af5 100644
--- a/src/alert.h
+++ b/src/alert.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_ALERT_H
diff --git a/src/allocators.cpp b/src/allocators.cpp
index dfe26f1b1e..d3958aa4d7 100644
--- a/src/allocators.cpp
+++ b/src/allocators.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "allocators.h"
diff --git a/src/allocators.h b/src/allocators.h
index 78a3b76d0c..6a131c3517 100644
--- a/src/allocators.h
+++ b/src/allocators.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_ALLOCATORS_H
diff --git a/src/amount.cpp b/src/amount.cpp
index e6f5b7d440..0a394c96fc 100644
--- a/src/amount.cpp
+++ b/src/amount.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/amount.h b/src/amount.h
index c0d37954cb..9212244a88 100644
--- a/src/amount.h
+++ b/src/amount.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/arith_uint256.cpp b/src/arith_uint256.cpp
new file mode 100644
index 0000000000..1243823da5
--- /dev/null
+++ b/src/arith_uint256.cpp
@@ -0,0 +1,259 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "arith_uint256.h"
+
+#include "uint256.h"
+#include "utilstrencodings.h"
+
+#include <stdio.h>
+#include <string.h>
+
+template <unsigned int BITS>
+base_uint<BITS>::base_uint(const std::string& str)
+{
+    SetHex(str);
+}
+
+template <unsigned int BITS>
+base_uint<BITS>& base_uint<BITS>::operator<<=(unsigned int shift)
+{
+    base_uint<BITS> a(*this);
+    for (int i = 0; i < WIDTH; i++)
+        pn[i] = 0;
+    int k = shift / 32;
+    shift = shift % 32;
+    for (int i = 0; i < WIDTH; i++) {
+        if (i + k + 1 < WIDTH && shift != 0)
+            pn[i + k + 1] |= (a.pn[i] >> (32 - shift));
+        if (i + k < WIDTH)
+            pn[i + k] |= (a.pn[i] << shift);
+    }
+    return *this;
+}
+
+template <unsigned int BITS>
+base_uint<BITS>& base_uint<BITS>::operator>>=(unsigned int shift)
+{
+    base_uint<BITS> a(*this);
+    for (int i = 0; i < WIDTH; i++)
+        pn[i] = 0;
+    int k = shift / 32;
+    shift = shift % 32;
+    for (int i = 0; i < WIDTH; i++) {
+        if (i - k - 1 >= 0 && shift != 0)
+            pn[i - k - 1] |= (a.pn[i] << (32 - shift));
+        if (i - k >= 0)
+            pn[i - k] |= (a.pn[i] >> shift);
+    }
+    return *this;
+}
+
+template <unsigned int BITS>
+base_uint<BITS>& base_uint<BITS>::operator*=(uint32_t b32)
+{
+    uint64_t carry = 0;
+    for (int i = 0; i < WIDTH; i++) {
+        uint64_t n = carry + (uint64_t)b32 * pn[i];
+        pn[i] = n & 0xffffffff;
+        carry = n >> 32;
+    }
+    return *this;
+}
+
+template <unsigned int BITS>
+base_uint<BITS>& base_uint<BITS>::operator*=(const base_uint& b)
+{
+    base_uint<BITS> a = *this;
+    *this = 0;
+    for (int j = 0; j < WIDTH; j++) {
+        uint64_t carry = 0;
+        for (int i = 0; i + j < WIDTH; i++) {
+            uint64_t n = carry + pn[i + j] + (uint64_t)a.pn[j] * b.pn[i];
+            pn[i + j] = n & 0xffffffff;
+            carry = n >> 32;
+        }
+    }
+    return *this;
+}
+
+template <unsigned int BITS>
+base_uint<BITS>& base_uint<BITS>::operator/=(const base_uint& b)
+{
+    base_uint<BITS> div = b;     // make a copy, so we can shift.
+    base_uint<BITS> num = *this; // make a copy, so we can subtract.
+    *this = 0;                   // the quotient.
+    int num_bits = num.bits();
+    int div_bits = div.bits();
+    if (div_bits == 0)
+        throw uint_error("Division by zero");
+    if (div_bits > num_bits) // the result is certainly 0.
+        return *this;
+    int shift = num_bits - div_bits;
+    div <<= shift; // shift so that div and num align.
+    while (shift >= 0) {
+        if (num >= div) {
+            num -= div;
+            pn[shift / 32] |= (1 << (shift & 31)); // set a bit of the result.
+        }
+        div >>= 1; // shift back.
+        shift--;
+    }
+    // num now contains the remainder of the division.
+    return *this;
+}
+
+template <unsigned int BITS>
+int base_uint<BITS>::CompareTo(const base_uint<BITS>& b) const
+{
+    for (int i = WIDTH - 1; i >= 0; i--) {
+        if (pn[i] < b.pn[i])
+            return -1;
+        if (pn[i] > b.pn[i])
+            return 1;
+    }
+    return 0;
+}
+
+template <unsigned int BITS>
+bool base_uint<BITS>::EqualTo(uint64_t b) const
+{
+    for (int i = WIDTH - 1; i >= 2; i--) {
+        if (pn[i])
+            return false;
+    }
+    if (pn[1] != (b >> 32))
+        return false;
+    if (pn[0] != (b & 0xfffffffful))
+        return false;
+    return true;
+}
+
+template <unsigned int BITS>
+double base_uint<BITS>::getdouble() const
+{
+    double ret = 0.0;
+    double fact = 1.0;
+    for (int i = 0; i < WIDTH; i++) {
+        ret += fact * pn[i];
+        fact *= 4294967296.0;
+    }
+    return ret;
+}
+
+template <unsigned int BITS>
+std::string base_uint<BITS>::GetHex() const
+{
+    return ArithToUint256(*this).GetHex();
+}
+
+template <unsigned int BITS>
+void base_uint<BITS>::SetHex(const char* psz)
+{
+    *this = UintToArith256(uint256S(psz));
+}
+
+template <unsigned int BITS>
+void base_uint<BITS>::SetHex(const std::string& str)
+{
+    SetHex(str.c_str());
+}
+
+template <unsigned int BITS>
+std::string base_uint<BITS>::ToString() const
+{
+    return (GetHex());
+}
+
+template <unsigned int BITS>
+unsigned int base_uint<BITS>::bits() const
+{
+    for (int pos = WIDTH - 1; pos >= 0; pos--) {
+        if (pn[pos]) {
+            for (int bits = 31; bits > 0; bits--) {
+                if (pn[pos] & 1 << bits)
+                    return 32 * pos + bits + 1;
+            }
+            return 32 * pos + 1;
+        }
+    }
+    return 0;
+}
+
+// Explicit instantiations for base_uint<256>
+template base_uint<256>::base_uint(const std::string&);
+template base_uint<256>& base_uint<256>::operator<<=(unsigned int);
+template base_uint<256>& base_uint<256>::operator>>=(unsigned int);
+template base_uint<256>& base_uint<256>::operator*=(uint32_t b32);
+template base_uint<256>& base_uint<256>::operator*=(const base_uint<256>& b);
+template base_uint<256>& base_uint<256>::operator/=(const base_uint<256>& b);
+template int base_uint<256>::CompareTo(const base_uint<256>&) const;
+template bool base_uint<256>::EqualTo(uint64_t) const;
+template double base_uint<256>::getdouble() const;
+template std::string base_uint<256>::GetHex() const;
+template std::string base_uint<256>::ToString() const;
+template void base_uint<256>::SetHex(const char*);
+template void base_uint<256>::SetHex(const std::string&);
+template unsigned int base_uint<256>::bits() const;
+
+// This implementation directly uses shifts instead of going
+// through an intermediate MPI representation.
+arith_uint256& arith_uint256::SetCompact(uint32_t nCompact, bool* pfNegative, bool* pfOverflow)
+{
+    int nSize = nCompact >> 24;
+    uint32_t nWord = nCompact & 0x007fffff;
+    if (nSize <= 3) {
+        nWord >>= 8 * (3 - nSize);
+        *this = nWord;
+    } else {
+        *this = nWord;
+        *this <<= 8 * (nSize - 3);
+    }
+    if (pfNegative)
+        *pfNegative = nWord != 0 && (nCompact & 0x00800000) != 0;
+    if (pfOverflow)
+        *pfOverflow = nWord != 0 && ((nSize > 34) ||
+                                     (nWord > 0xff && nSize > 33) ||
+                                     (nWord > 0xffff && nSize > 32));
+    return *this;
+}
+
+uint32_t arith_uint256::GetCompact(bool fNegative) const
+{
+    int nSize = (bits() + 7) / 8;
+    uint32_t nCompact = 0;
+    if (nSize <= 3) {
+        nCompact = GetLow64() << 8 * (3 - nSize);
+    } else {
+        arith_uint256 bn = *this >> 8 * (nSize - 3);
+        nCompact = bn.GetLow64();
+    }
+    // The 0x00800000 bit denotes the sign.
+    // Thus, if it is already set, divide the mantissa by 256 and increase the exponent.
+    if (nCompact & 0x00800000) {
+        nCompact >>= 8;
+        nSize++;
+    }
+    assert((nCompact & ~0x007fffff) == 0);
+    assert(nSize < 256);
+    nCompact |= nSize << 24;
+    nCompact |= (fNegative && (nCompact & 0x007fffff) ? 0x00800000 : 0);
+    return nCompact;
+}
+
+uint256 ArithToUint256(const arith_uint256 &a)
+{
+    uint256 b;
+    // TODO: needs bswap32 on big-endian
+    memcpy(b.begin(), a.pn, a.size());
+    return b;
+}
+arith_uint256 UintToArith256(const uint256 &a)
+{
+    arith_uint256 b;
+    // TODO: needs bswap32 on big-endian
+    memcpy(b.pn, a.begin(), a.size());
+    return b;
+}
diff --git a/src/arith_uint256.h b/src/arith_uint256.h
new file mode 100644
index 0000000000..b6ba3a1087
--- /dev/null
+++ b/src/arith_uint256.h
@@ -0,0 +1,290 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_ARITH_UINT256_H
+#define BITCOIN_ARITH_UINT256_H
+
+#include <assert.h>
+#include <cstring>
+#include <stdexcept>
+#include <stdint.h>
+#include <string>
+#include <vector>
+
+class uint256;
+
+class uint_error : public std::runtime_error {
+public:
+    explicit uint_error(const std::string& str) : std::runtime_error(str) {}
+};
+
+/** Template base class for unsigned big integers. */
+template<unsigned int BITS>
+class base_uint
+{
+protected:
+    enum { WIDTH=BITS/32 };
+    uint32_t pn[WIDTH];
+public:
+
+    base_uint()
+    {
+        for (int i = 0; i < WIDTH; i++)
+            pn[i] = 0;
+    }
+
+    base_uint(const base_uint& b)
+    {
+        for (int i = 0; i < WIDTH; i++)
+            pn[i] = b.pn[i];
+    }
+
+    base_uint& operator=(const base_uint& b)
+    {
+        for (int i = 0; i < WIDTH; i++)
+            pn[i] = b.pn[i];
+        return *this;
+    }
+
+    base_uint(uint64_t b)
+    {
+        pn[0] = (unsigned int)b;
+        pn[1] = (unsigned int)(b >> 32);
+        for (int i = 2; i < WIDTH; i++)
+            pn[i] = 0;
+    }
+
+    explicit base_uint(const std::string& str);
+
+    bool operator!() const
+    {
+        for (int i = 0; i < WIDTH; i++)
+            if (pn[i] != 0)
+                return false;
+        return true;
+    }
+
+    const base_uint operator~() const
+    {
+        base_uint ret;
+        for (int i = 0; i < WIDTH; i++)
+            ret.pn[i] = ~pn[i];
+        return ret;
+    }
+
+    const base_uint operator-() const
+    {
+        base_uint ret;
+        for (int i = 0; i < WIDTH; i++)
+            ret.pn[i] = ~pn[i];
+        ret++;
+        return ret;
+    }
+
+    double getdouble() const;
+
+    base_uint& operator=(uint64_t b)
+    {
+        pn[0] = (unsigned int)b;
+        pn[1] = (unsigned int)(b >> 32);
+        for (int i = 2; i < WIDTH; i++)
+            pn[i] = 0;
+        return *this;
+    }
+
+    base_uint& operator^=(const base_uint& b)
+    {
+        for (int i = 0; i < WIDTH; i++)
+            pn[i] ^= b.pn[i];
+        return *this;
+    }
+
+    base_uint& operator&=(const base_uint& b)
+    {
+        for (int i = 0; i < WIDTH; i++)
+            pn[i] &= b.pn[i];
+        return *this;
+    }
+
+    base_uint& operator|=(const base_uint& b)
+    {
+        for (int i = 0; i < WIDTH; i++)
+            pn[i] |= b.pn[i];
+        return *this;
+    }
+
+    base_uint& operator^=(uint64_t b)
+    {
+        pn[0] ^= (unsigned int)b;
+        pn[1] ^= (unsigned int)(b >> 32);
+        return *this;
+    }
+
+    base_uint& operator|=(uint64_t b)
+    {
+        pn[0] |= (unsigned int)b;
+        pn[1] |= (unsigned int)(b >> 32);
+        return *this;
+    }
+
+    base_uint& operator<<=(unsigned int shift);
+    base_uint& operator>>=(unsigned int shift);
+
+    base_uint& operator+=(const base_uint& b)
+    {
+        uint64_t carry = 0;
+        for (int i = 0; i < WIDTH; i++)
+        {
+            uint64_t n = carry + pn[i] + b.pn[i];
+            pn[i] = n & 0xffffffff;
+            carry = n >> 32;
+        }
+        return *this;
+    }
+
+    base_uint& operator-=(const base_uint& b)
+    {
+        *this += -b;
+        return *this;
+    }
+
+    base_uint& operator+=(uint64_t b64)
+    {
+        base_uint b;
+        b = b64;
+        *this += b;
+        return *this;
+    }
+
+    base_uint& operator-=(uint64_t b64)
+    {
+        base_uint b;
+        b = b64;
+        *this += -b;
+        return *this;
+    }
+
+    base_uint& operator*=(uint32_t b32);
+    base_uint& operator*=(const base_uint& b);
+    base_uint& operator/=(const base_uint& b);
+
+    base_uint& operator++()
+    {
+        // prefix operator
+        int i = 0;
+        while (++pn[i] == 0 && i < WIDTH-1)
+            i++;
+        return *this;
+    }
+
+    const base_uint operator++(int)
+    {
+        // postfix operator
+        const base_uint ret = *this;
+        ++(*this);
+        return ret;
+    }
+
+    base_uint& operator--()
+    {
+        // prefix operator
+        int i = 0;
+        while (--pn[i] == (uint32_t)-1 && i < WIDTH-1)
+            i++;
+        return *this;
+    }
+
+    const base_uint operator--(int)
+    {
+        // postfix operator
+        const base_uint ret = *this;
+        --(*this);
+        return ret;
+    }
+
+    int CompareTo(const base_uint& b) const;
+    bool EqualTo(uint64_t b) const;
+
+    friend inline const base_uint operator+(const base_uint& a, const base_uint& b) { return base_uint(a) += b; }
+    friend inline const base_uint operator-(const base_uint& a, const base_uint& b) { return base_uint(a) -= b; }
+    friend inline const base_uint operator*(const base_uint& a, const base_uint& b) { return base_uint(a) *= b; }
+    friend inline const base_uint operator/(const base_uint& a, const base_uint& b) { return base_uint(a) /= b; }
+    friend inline const base_uint operator|(const base_uint& a, const base_uint& b) { return base_uint(a) |= b; }
+    friend inline const base_uint operator&(const base_uint& a, const base_uint& b) { return base_uint(a) &= b; }
+    friend inline const base_uint operator^(const base_uint& a, const base_uint& b) { return base_uint(a) ^= b; }
+    friend inline const base_uint operator>>(const base_uint& a, int shift) { return base_uint(a) >>= shift; }
+    friend inline const base_uint operator<<(const base_uint& a, int shift) { return base_uint(a) <<= shift; }
+    friend inline const base_uint operator*(const base_uint& a, uint32_t b) { return base_uint(a) *= b; }
+    friend inline bool operator==(const base_uint& a, const base_uint& b) { return memcmp(a.pn, b.pn, sizeof(a.pn)) == 0; }
+    friend inline bool operator!=(const base_uint& a, const base_uint& b) { return memcmp(a.pn, b.pn, sizeof(a.pn)) != 0; }
+    friend inline bool operator>(const base_uint& a, const base_uint& b) { return a.CompareTo(b) > 0; }
+    friend inline bool operator<(const base_uint& a, const base_uint& b) { return a.CompareTo(b) < 0; }
+    friend inline bool operator>=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) >= 0; }
+    friend inline bool operator<=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) <= 0; }
+    friend inline bool operator==(const base_uint& a, uint64_t b) { return a.EqualTo(b); }
+    friend inline bool operator!=(const base_uint& a, uint64_t b) { return !a.EqualTo(b); }
+
+    std::string GetHex() const;
+    void SetHex(const char* psz);
+    void SetHex(const std::string& str);
+    std::string ToString() const;
+
+    unsigned int size() const
+    {
+        return sizeof(pn);
+    }
+
+    /**
+     * Returns the position of the highest bit set plus one, or zero if the
+     * value is zero.
+     */
+    unsigned int bits() const;
+
+    uint64_t GetLow64() const
+    {
+        assert(WIDTH >= 2);
+        return pn[0] | (uint64_t)pn[1] << 32;
+    }
+};
+
+/** 256-bit unsigned big integer. */
+class arith_uint256 : public base_uint<256> {
+public:
+    arith_uint256() {}
+    arith_uint256(const base_uint<256>& b) : base_uint<256>(b) {}
+    arith_uint256(uint64_t b) : base_uint<256>(b) {}
+    explicit arith_uint256(const std::string& str) : base_uint<256>(str) {}
+
+    /**
+     * The "compact" format is a representation of a whole
+     * number N using an unsigned 32bit number similar to a
+     * floating point format.
+     * The most significant 8 bits are the unsigned exponent of base 256.
+     * This exponent can be thought of as "number of bytes of N".
+     * The lower 23 bits are the mantissa.
+     * Bit number 24 (0x800000) represents the sign of N.
+     * N = (-1^sign) * mantissa * 256^(exponent-3)
+     *
+     * Satoshi's original implementation used BN_bn2mpi() and BN_mpi2bn().
+     * MPI uses the most significant bit of the first byte as sign.
+     * Thus 0x1234560000 is compact (0x05123456)
+     * and  0xc0de000000 is compact (0x0600c0de)
+     *
+     * Bitcoin only uses this "compact" format for encoding difficulty
+     * targets, which are unsigned 256bit quantities.  Thus, all the
+     * complexities of the sign bit and using base 256 are probably an
+     * implementation accident.
+     */
+    arith_uint256& SetCompact(uint32_t nCompact, bool *pfNegative = NULL, bool *pfOverflow = NULL);
+    uint32_t GetCompact(bool fNegative = false) const;
+
+    friend uint256 ArithToUint256(const arith_uint256 &);
+    friend arith_uint256 UintToArith256(const uint256 &);
+};
+
+uint256 ArithToUint256(const arith_uint256 &);
+arith_uint256 UintToArith256(const uint256 &);
+
+#endif // BITCOIN_UINT256_H
diff --git a/src/base58.cpp b/src/base58.cpp
index c594993ea0..980d3cbf42 100644
--- a/src/base58.cpp
+++ b/src/base58.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/base58.h b/src/base58.h
index c4cb96814c..ed134e6e77 100644
--- a/src/base58.h
+++ b/src/base58.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/bitcoin-cli-res.rc b/src/bitcoin-cli-res.rc
index b1aa1b0e16..4ea1f38e47 100644
--- a/src/bitcoin-cli-res.rc
+++ b/src/bitcoin-cli-res.rc
@@ -21,7 +21,7 @@ BEGIN
             VALUE "FileVersion",        VER_FILEVERSION_STR
             VALUE "InternalName",       "bitcoin-cli"
             VALUE "LegalCopyright",     COPYRIGHT_STR
-            VALUE "LegalTrademarks1",   "Distributed under the MIT/X11 software license, see the accompanying file COPYING or http://www.opensource.org/licenses/mit-license.php."
+            VALUE "LegalTrademarks1",   "Distributed under the MIT software license, see the accompanying file COPYING or http://www.opensource.org/licenses/mit-license.php."
             VALUE "OriginalFilename",   "bitcoin-cli.exe"
             VALUE "ProductName",        "Bitcoin-cli"
             VALUE "ProductVersion",     VER_PRODUCTVERSION_STR
diff --git a/src/bitcoin-cli.cpp b/src/bitcoin-cli.cpp
index 1b638e99e9..f273a15713 100644
--- a/src/bitcoin-cli.cpp
+++ b/src/bitcoin-cli.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "chainparamsbase.h"
@@ -15,8 +15,6 @@
 #define _(x) std::string(x) /* Keep the _() around in case gettext or such will be used later to translate non-UI */
 
 using namespace std;
-using namespace boost;
-using namespace boost::asio;
 using namespace json_spirit;
 
 std::string HelpMessageCli()
@@ -86,7 +84,7 @@ static bool AppInitRPC(int argc, char* argv[])
     }
     try {
         ReadConfigFile(mapArgs, mapMultiArgs);
-    } catch(std::exception &e) {
+    } catch (const std::exception& e) {
         fprintf(stderr,"Error reading configuration file: %s\n", e.what());
         return false;
     }
@@ -108,12 +106,12 @@ Object CallRPC(const string& strMethod, const Array& params)
 
     // Connect to localhost
     bool fUseSSL = GetBoolArg("-rpcssl", false);
-    asio::io_service io_service;
-    ssl::context context(io_service, ssl::context::sslv23);
-    context.set_options(ssl::context::no_sslv2);
-    asio::ssl::stream<asio::ip::tcp::socket> sslStream(io_service, context);
-    SSLIOStreamDevice<asio::ip::tcp> d(sslStream, fUseSSL);
-    iostreams::stream< SSLIOStreamDevice<asio::ip::tcp> > stream(d);
+    boost::asio::io_service io_service;
+    boost::asio::ssl::context context(io_service, boost::asio::ssl::context::sslv23);
+    context.set_options(boost::asio::ssl::context::no_sslv2 | boost::asio::ssl::context::no_sslv3);
+    boost::asio::ssl::stream<boost::asio::ip::tcp::socket> sslStream(io_service, context);
+    SSLIOStreamDevice<boost::asio::ip::tcp> d(sslStream, fUseSSL);
+    boost::iostreams::stream< SSLIOStreamDevice<boost::asio::ip::tcp> > stream(d);
 
     const bool fConnected = d.connect(GetArg("-rpcconnect", "127.0.0.1"), GetArg("-rpcport", itostr(BaseParams().RPCPort())));
     if (!fConnected)
@@ -206,7 +204,7 @@ int CommandLineRPC(int argc, char *argv[])
                 // Connection succeeded, no need to retry.
                 break;
             }
-            catch (const CConnectionFailed& e) {
+            catch (const CConnectionFailed&) {
                 if (fWait)
                     MilliSleep(1000);
                 else
@@ -214,10 +212,10 @@ int CommandLineRPC(int argc, char *argv[])
             }
         } while (fWait);
     }
-    catch (boost::thread_interrupted) {
+    catch (const boost::thread_interrupted&) {
         throw;
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         strPrint = string("error: ") + e.what();
         nRet = EXIT_FAILURE;
     }
@@ -240,7 +238,7 @@ int main(int argc, char* argv[])
         if(!AppInitRPC(argc, argv))
             return EXIT_FAILURE;
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         PrintExceptionContinue(&e, "AppInitRPC()");
         return EXIT_FAILURE;
     } catch (...) {
@@ -252,7 +250,7 @@ int main(int argc, char* argv[])
     try {
         ret = CommandLineRPC(argc, argv);
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         PrintExceptionContinue(&e, "CommandLineRPC()");
     } catch (...) {
         PrintExceptionContinue(NULL, "CommandLineRPC()");
diff --git a/src/bitcoin-tx.cpp b/src/bitcoin-tx.cpp
index 1cceab3188..c1622cf5d3 100644
--- a/src/bitcoin-tx.cpp
+++ b/src/bitcoin-tx.cpp
@@ -1,18 +1,20 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "base58.h"
 #include "clientversion.h"
+#include "primitives/block.h" // for MAX_BLOCK_SIZE
 #include "primitives/transaction.h"
 #include "core_io.h"
+#include "coins.h"
 #include "keystore.h"
-#include "main.h" // for MAX_BLOCK_SIZE
 #include "script/script.h"
 #include "script/sign.h"
 #include "ui_interface.h" // for _(...)
 #include "univalue/univalue.h"
 #include "util.h"
+#include "utilstrencodings.h"
 #include "utilmoneystr.h"
 
 #include <stdio.h>
@@ -20,7 +22,6 @@
 #include <boost/algorithm/string.hpp>
 #include <boost/assign/list_of.hpp>
 
-using namespace boost::assign;
 using namespace std;
 
 static bool fCreateBlank;
@@ -57,6 +58,7 @@ static bool AppInitRawTx(int argc, char* argv[])
         strUsage += "  -?                      " + _("This help message") + "\n";
         strUsage += "  -create                 " + _("Create new, empty TX.") + "\n";
         strUsage += "  -json                   " + _("Select JSON output") + "\n";
+        strUsage += "  -txid                   " + _("Output only the hex-encoded transaction id of the resultant transaction.") + "\n";
         strUsage += "  -regtest                " + _("Enter regression test mode, which uses a special chain in which blocks can be solved instantly.") + "\n";
         strUsage += "  -testnet                " + _("Use the test network") + "\n";
         strUsage += "\n";
@@ -188,7 +190,7 @@ static void MutateTxAddInput(CMutableTransaction& tx, const string& strInput)
     string strTxid = strInput.substr(0, pos);
     if ((strTxid.size() != 64) || !IsHex(strTxid))
         throw runtime_error("invalid TX input txid");
-    uint256 txid(strTxid);
+    uint256 txid(uint256S(strTxid));
 
     static const unsigned int minTxOutSz = 9;
     static const unsigned int maxVout = MAX_BLOCK_SIZE / minTxOutSz;
@@ -312,7 +314,7 @@ static bool findSighashFlags(int& flags, const string& flagStr)
 uint256 ParseHashUO(map<string,UniValue>& o, string strKey)
 {
     if (!o.count(strKey))
-        return 0;
+        return uint256();
     return ParseHashUV(o[strKey], strKey);
 }
 
@@ -365,24 +367,24 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
     // Add previous txouts given in the RPC call:
     if (!registers.count("prevtxs"))
         throw runtime_error("prevtxs register variable must be set.");
-    UniValue prevtxsObj = registers["privatekeys"];
+    UniValue prevtxsObj = registers["prevtxs"];
     {
         for (unsigned int previdx = 0; previdx < prevtxsObj.count(); previdx++) {
             UniValue prevOut = prevtxsObj[previdx];
             if (!prevOut.isObject())
                 throw runtime_error("expected prevtxs internal object");
 
-            map<string,UniValue::VType> types = map_list_of("txid", UniValue::VSTR)("vout",UniValue::VNUM)("scriptPubKey",UniValue::VSTR);
+            map<string,UniValue::VType> types = boost::assign::map_list_of("txid", UniValue::VSTR)("vout",UniValue::VNUM)("scriptPubKey",UniValue::VSTR);
             if (!prevOut.checkObject(types))
                 throw runtime_error("prevtxs internal object typecheck fail");
 
-            uint256 txid = ParseHashUV(prevOut, "txid");
+            uint256 txid = ParseHashUV(prevOut["txid"], "txid");
 
             int nOut = atoi(prevOut["vout"].getValStr());
             if (nOut < 0)
                 throw runtime_error("vout must be positive");
 
-            vector<unsigned char> pkData(ParseHexUV(prevOut, "scriptPubKey"));
+            vector<unsigned char> pkData(ParseHexUV(prevOut["scriptPubKey"], "scriptPubKey"));
             CScript scriptPubKey(pkData.begin(), pkData.end());
 
             {
@@ -434,7 +436,7 @@ static void MutateTxSign(CMutableTransaction& tx, const string& flagStr)
         BOOST_FOREACH(const CTransaction& txv, txVariants) {
             txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, txv.vin[i].scriptSig);
         }
-        if (!VerifyScript(txin.scriptSig, prevPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, SignatureChecker(mergedTx, i)))
+        if (!VerifyScript(txin.scriptSig, prevPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i)))
             fComplete = false;
     }
 
@@ -482,12 +484,19 @@ static void MutateTx(CMutableTransaction& tx, const string& command,
 static void OutputTxJSON(const CTransaction& tx)
 {
     UniValue entry(UniValue::VOBJ);
-    TxToUniv(tx, 0, entry);
+    TxToUniv(tx, uint256(), entry);
 
     string jsonOutput = entry.write(4);
     fprintf(stdout, "%s\n", jsonOutput.c_str());
 }
 
+static void OutputTxHash(const CTransaction& tx)
+{
+    string strHexHash = tx.GetHash().GetHex(); // the hex-encoded transaction hash (aka the transaction id)
+
+    fprintf(stdout, "%s\n", strHexHash.c_str());
+}
+
 static void OutputTxHex(const CTransaction& tx)
 {
     string strHex = EncodeHexTx(tx);
@@ -499,6 +508,8 @@ static void OutputTx(const CTransaction& tx)
 {
     if (GetBoolArg("-json", false))
         OutputTxJSON(tx);
+    else if (GetBoolArg("-txid", false))
+        OutputTxHash(tx);
     else
         OutputTxHex(tx);
 }
@@ -574,10 +585,10 @@ static int CommandLineRawTx(int argc, char* argv[])
         OutputTx(tx);
     }
 
-    catch (boost::thread_interrupted) {
+    catch (const boost::thread_interrupted&) {
         throw;
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         strPrint = string("error: ") + e.what();
         nRet = EXIT_FAILURE;
     }
@@ -600,7 +611,7 @@ int main(int argc, char* argv[])
         if(!AppInitRawTx(argc, argv))
             return EXIT_FAILURE;
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         PrintExceptionContinue(&e, "AppInitRawTx()");
         return EXIT_FAILURE;
     } catch (...) {
@@ -612,7 +623,7 @@ int main(int argc, char* argv[])
     try {
         ret = CommandLineRawTx(argc, argv);
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         PrintExceptionContinue(&e, "CommandLineRawTx()");
     } catch (...) {
         PrintExceptionContinue(NULL, "CommandLineRawTx()");
diff --git a/src/bitcoind-res.rc b/src/bitcoind-res.rc
index 2e6d754495..d183179b17 100644
--- a/src/bitcoind-res.rc
+++ b/src/bitcoind-res.rc
@@ -21,7 +21,7 @@ BEGIN
             VALUE "FileVersion",        VER_FILEVERSION_STR
             VALUE "InternalName",       "bitcoind"
             VALUE "LegalCopyright",     COPYRIGHT_STR
-            VALUE "LegalTrademarks1",   "Distributed under the MIT/X11 software license, see the accompanying file COPYING or http://www.opensource.org/licenses/mit-license.php."
+            VALUE "LegalTrademarks1",   "Distributed under the MIT software license, see the accompanying file COPYING or http://www.opensource.org/licenses/mit-license.php."
             VALUE "OriginalFilename",   "bitcoind.exe"
             VALUE "ProductName",        "Bitcoind"
             VALUE "ProductVersion",     VER_PRODUCTVERSION_STR
diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index be7757b0b6..8a1745b50d 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "clientversion.h"
@@ -97,7 +97,7 @@ bool AppInit(int argc, char* argv[])
         try
         {
             ReadConfigFile(mapArgs, mapMultiArgs);
-        } catch(std::exception &e) {
+        } catch (const std::exception& e) {
             fprintf(stderr,"Error reading configuration file: %s\n", e.what());
             return false;
         }
@@ -147,7 +147,7 @@ bool AppInit(int argc, char* argv[])
         detectShutdownThread = new boost::thread(boost::bind(&DetectShutdownThread, &threadGroup));
         fRet = AppInit2(threadGroup);
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         PrintExceptionContinue(&e, "AppInit()");
     } catch (...) {
         PrintExceptionContinue(NULL, "AppInit()");
diff --git a/src/bloom.cpp b/src/bloom.cpp
index da30e6f355..e60576f4b4 100644
--- a/src/bloom.cpp
+++ b/src/bloom.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/bloom.h b/src/bloom.h
index f54922edb9..191ffa19b3 100644
--- a/src/bloom.h
+++ b/src/bloom.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/chain.cpp b/src/chain.cpp
index e13c047861..719256106e 100644
--- a/src/chain.cpp
+++ b/src/chain.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -57,3 +57,52 @@ const CBlockIndex *CChain::FindFork(const CBlockIndex *pindex) const {
         pindex = pindex->pprev;
     return pindex;
 }
+
+/** Turn the lowest '1' bit in the binary representation of a number into a '0'. */
+int static inline InvertLowestOne(int n) { return n & (n - 1); }
+
+/** Compute what height to jump back to with the CBlockIndex::pskip pointer. */
+int static inline GetSkipHeight(int height) {
+    if (height < 2)
+        return 0;
+
+    // Determine which height to jump back to. Any number strictly lower than height is acceptable,
+    // but the following expression seems to perform well in simulations (max 110 steps to go back
+    // up to 2**18 blocks).
+    return (height & 1) ? InvertLowestOne(InvertLowestOne(height - 1)) + 1 : InvertLowestOne(height);
+}
+
+CBlockIndex* CBlockIndex::GetAncestor(int height)
+{
+    if (height > nHeight || height < 0)
+        return NULL;
+
+    CBlockIndex* pindexWalk = this;
+    int heightWalk = nHeight;
+    while (heightWalk > height) {
+        int heightSkip = GetSkipHeight(heightWalk);
+        int heightSkipPrev = GetSkipHeight(heightWalk - 1);
+        if (heightSkip == height ||
+            (heightSkip > height && !(heightSkipPrev < heightSkip - 2 &&
+                                      heightSkipPrev >= height))) {
+            // Only follow pskip if pprev->pskip isn't better than pskip->pprev.
+            pindexWalk = pindexWalk->pskip;
+            heightWalk = heightSkip;
+        } else {
+            pindexWalk = pindexWalk->pprev;
+            heightWalk--;
+        }
+    }
+    return pindexWalk;
+}
+
+const CBlockIndex* CBlockIndex::GetAncestor(int height) const
+{
+    return const_cast<CBlockIndex*>(this)->GetAncestor(height);
+}
+
+void CBlockIndex::BuildSkip()
+{
+    if (pprev)
+        pskip = pprev->GetAncestor(GetSkipHeight(nHeight));
+}
diff --git a/src/chain.h b/src/chain.h
index d834790f06..004e87ab52 100644
--- a/src/chain.h
+++ b/src/chain.h
@@ -1,11 +1,12 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_CHAIN_H
 #define BITCOIN_CHAIN_H
 
+#include "arith_uint256.h"
 #include "primitives/block.h"
 #include "pow.h"
 #include "tinyformat.h"
@@ -95,7 +96,7 @@ enum BlockStatus {
 class CBlockIndex
 {
 public:
-    //! pointer to the hash of the block, if any. memory is owned by this CBlockIndex
+    //! pointer to the hash of the block, if any. Memory is owned by this CBlockIndex
     const uint256* phashBlock;
 
     //! pointer to the index of the predecessor of this block
@@ -117,7 +118,7 @@ public:
     unsigned int nUndoPos;
 
     //! (memory only) Total amount of work (expected number of hashes) in the chain up to and including this block
-    uint256 nChainWork;
+    arith_uint256 nChainWork;
 
     //! Number of transactions in this block.
     //! Note: in a potential headers-first mode, this number cannot be relied upon
@@ -150,14 +151,14 @@ public:
         nFile = 0;
         nDataPos = 0;
         nUndoPos = 0;
-        nChainWork = 0;
+        nChainWork = arith_uint256();
         nTx = 0;
         nChainTx = 0;
         nStatus = 0;
         nSequenceId = 0;
 
         nVersion       = 0;
-        hashMerkleRoot = 0;
+        hashMerkleRoot = uint256();
         nTime          = 0;
         nBits          = 0;
         nNonce         = 0;
@@ -236,14 +237,6 @@ public:
         return pbegin[(pend - pbegin)/2];
     }
 
-    /**
-     * Returns true if there are nRequired or more blocks of minVersion or above
-     * in the last Params().ToCheckBlockUpgradeMajority() blocks, starting at pstart 
-     * and going backwards.
-     */
-    static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart,
-                                unsigned int nRequired);
-
     std::string ToString() const
     {
         return strprintf("CBlockIndex(pprev=%p, nHeight=%d, merkle=%s, hashBlock=%s)",
@@ -290,11 +283,11 @@ public:
     uint256 hashPrev;
 
     CDiskBlockIndex() {
-        hashPrev = 0;
+        hashPrev = uint256();
     }
 
-    explicit CDiskBlockIndex(CBlockIndex* pindex) : CBlockIndex(*pindex) {
-        hashPrev = (pprev ? pprev->GetBlockHash() : 0);
+    explicit CDiskBlockIndex(const CBlockIndex* pindex) : CBlockIndex(*pindex) {
+        hashPrev = (pprev ? pprev->GetBlockHash() : uint256());
     }
 
     ADD_SERIALIZE_METHODS;
diff --git a/src/chainparams.cpp b/src/chainparams.cpp
index 8a6a061ea1..1fd3b01681 100644
--- a/src/chainparams.cpp
+++ b/src/chainparams.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -14,7 +14,6 @@
 #include <boost/assign/list_of.hpp>
 
 using namespace std;
-using namespace boost::assign;
 
 struct SeedSpec6 {
     uint8_t addr[16];
@@ -54,19 +53,19 @@ static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data
  */
 static Checkpoints::MapCheckpoints mapCheckpoints =
         boost::assign::map_list_of
-        ( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
-        ( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
-        ( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
-        (105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
-        (134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
-        (168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
-        (193000, uint256("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
-        (210000, uint256("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
-        (216116, uint256("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
-        (225430, uint256("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
-        (250000, uint256("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
-        (279000, uint256("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
-        (295000, uint256("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
+        ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
+        ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
+        ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
+        (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
+        (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
+        (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
+        (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
+        (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
+        (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
+        (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
+        (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
+        (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
+        (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
         ;
 static const Checkpoints::CCheckpointData data = {
         &mapCheckpoints,
@@ -78,7 +77,7 @@ static const Checkpoints::CCheckpointData data = {
 
 static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
         boost::assign::map_list_of
-        ( 546, uint256("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
+        ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
         ;
 static const Checkpoints::CCheckpointData dataTestnet = {
         &mapCheckpointsTestnet,
@@ -89,7 +88,7 @@ static const Checkpoints::CCheckpointData dataTestnet = {
 
 static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
         boost::assign::map_list_of
-        ( 0, uint256("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
+        ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
         ;
 static const Checkpoints::CCheckpointData dataRegtest = {
         &mapCheckpointsRegtest,
@@ -101,7 +100,6 @@ static const Checkpoints::CCheckpointData dataRegtest = {
 class CMainParams : public CChainParams {
 public:
     CMainParams() {
-        networkID = CBaseChainParams::MAIN;
         strNetworkID = "main";
         /** 
          * The message start string is designed to be unlikely to occur in normal data.
@@ -114,7 +112,7 @@ public:
         pchMessageStart[3] = 0xd9;
         vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
         nDefaultPort = 8333;
-        bnProofOfWorkLimit = ~uint256(0) >> 32;
+        bnProofOfWorkLimit = ~arith_uint256(0) >> 32;
         nSubsidyHalvingInterval = 210000;
         nEnforceBlockUpgradeMajority = 750;
         nRejectBlockOutdatedMajority = 950;
@@ -141,7 +139,7 @@ public:
         txNew.vout[0].nValue = 50 * COIN;
         txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
         genesis.vtx.push_back(txNew);
-        genesis.hashPrevBlock = 0;
+        genesis.hashPrevBlock.SetNull();
         genesis.hashMerkleRoot = genesis.BuildMerkleTree();
         genesis.nVersion = 1;
         genesis.nTime    = 1231006505;
@@ -149,21 +147,20 @@ public:
         genesis.nNonce   = 2083236893;
 
         hashGenesisBlock = genesis.GetHash();
-        assert(hashGenesisBlock == uint256("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
-        assert(genesis.hashMerkleRoot == uint256("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
+        assert(hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
+        assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
 
         vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be"));
         vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me"));
         vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org"));
         vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com"));
-        vSeeds.push_back(CDNSSeedData("bitnodes.io", "seed.bitnodes.io"));
         vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org"));
 
-        base58Prefixes[PUBKEY_ADDRESS] = list_of(0);
-        base58Prefixes[SCRIPT_ADDRESS] = list_of(5);
-        base58Prefixes[SECRET_KEY] =     list_of(128);
-        base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x88)(0xB2)(0x1E);
-        base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x88)(0xAD)(0xE4);
+        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
+        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
+        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,128);
+        base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
+        base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
 
         convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main));
 
@@ -190,7 +187,6 @@ static CMainParams mainParams;
 class CTestNetParams : public CMainParams {
 public:
     CTestNetParams() {
-        networkID = CBaseChainParams::TESTNET;
         strNetworkID = "test";
         pchMessageStart[0] = 0x0b;
         pchMessageStart[1] = 0x11;
@@ -209,7 +205,7 @@ public:
         genesis.nTime = 1296688602;
         genesis.nNonce = 414098458;
         hashGenesisBlock = genesis.GetHash();
-        assert(hashGenesisBlock == uint256("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
+        assert(hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
 
         vFixedSeeds.clear();
         vSeeds.clear();
@@ -218,11 +214,11 @@ public:
         vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
         vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
 
-        base58Prefixes[PUBKEY_ADDRESS] = list_of(111);
-        base58Prefixes[SCRIPT_ADDRESS] = list_of(196);
-        base58Prefixes[SECRET_KEY]     = list_of(239);
-        base58Prefixes[EXT_PUBLIC_KEY] = list_of(0x04)(0x35)(0x87)(0xCF);
-        base58Prefixes[EXT_SECRET_KEY] = list_of(0x04)(0x35)(0x83)(0x94);
+        base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
+        base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
+        base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,239);
+        base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
+        base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
 
         convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test));
 
@@ -247,7 +243,6 @@ static CTestNetParams testNetParams;
 class CRegTestParams : public CTestNetParams {
 public:
     CRegTestParams() {
-        networkID = CBaseChainParams::REGTEST;
         strNetworkID = "regtest";
         pchMessageStart[0] = 0xfa;
         pchMessageStart[1] = 0xbf;
@@ -260,13 +255,13 @@ public:
         nMinerThreads = 1;
         nTargetTimespan = 14 * 24 * 60 * 60; //! two weeks
         nTargetSpacing = 10 * 60;
-        bnProofOfWorkLimit = ~uint256(0) >> 1;
+        bnProofOfWorkLimit = ~arith_uint256(0) >> 1;
         genesis.nTime = 1296688602;
         genesis.nBits = 0x207fffff;
         genesis.nNonce = 2;
         hashGenesisBlock = genesis.GetHash();
         nDefaultPort = 18444;
-        assert(hashGenesisBlock == uint256("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
+        assert(hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
 
         vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
         vSeeds.clear();  //! Regtest mode doesn't have any DNS seeds.
@@ -292,7 +287,6 @@ static CRegTestParams regTestParams;
 class CUnitTestParams : public CMainParams, public CModifiableParams {
 public:
     CUnitTestParams() {
-        networkID = CBaseChainParams::UNITTEST;
         strNetworkID = "unittest";
         nDefaultPort = 18445;
         vFixedSeeds.clear(); //! Unit test mode doesn't have any fixed seeds.
diff --git a/src/chainparams.h b/src/chainparams.h
index 5d1ee1d3c6..f52bf4e55f 100644
--- a/src/chainparams.h
+++ b/src/chainparams.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -10,7 +10,7 @@
 #include "checkpoints.h"
 #include "primitives/block.h"
 #include "protocol.h"
-#include "uint256.h"
+#include "arith_uint256.h"
 
 #include <vector>
 
@@ -45,7 +45,7 @@ public:
     const MessageStartChars& MessageStart() const { return pchMessageStart; }
     const std::vector<unsigned char>& AlertKey() const { return vAlertPubKey; }
     int GetDefaultPort() const { return nDefaultPort; }
-    const uint256& ProofOfWorkLimit() const { return bnProofOfWorkLimit; }
+    const arith_uint256& ProofOfWorkLimit() const { return bnProofOfWorkLimit; }
     int SubsidyHalvingInterval() const { return nSubsidyHalvingInterval; }
     /** Used to check majorities for block version upgrade */
     int EnforceBlockUpgradeMajority() const { return nEnforceBlockUpgradeMajority; }
@@ -87,7 +87,7 @@ protected:
     //! Raw pub key bytes for the broadcast alert signing key.
     std::vector<unsigned char> vAlertPubKey;
     int nDefaultPort;
-    uint256 bnProofOfWorkLimit;
+    arith_uint256 bnProofOfWorkLimit;
     int nSubsidyHalvingInterval;
     int nEnforceBlockUpgradeMajority;
     int nRejectBlockOutdatedMajority;
@@ -97,7 +97,6 @@ protected:
     int nMinerThreads;
     std::vector<CDNSSeedData> vSeeds;
     std::vector<unsigned char> base58Prefixes[MAX_BASE58_TYPES];
-    CBaseChainParams::Network networkID;
     std::string strNetworkID;
     CBlock genesis;
     std::vector<CAddress> vFixedSeeds;
diff --git a/src/chainparamsbase.cpp b/src/chainparamsbase.cpp
index 8646a31603..c42fd106be 100644
--- a/src/chainparamsbase.cpp
+++ b/src/chainparamsbase.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -9,10 +9,6 @@
 
 #include <assert.h>
 
-#include <boost/assign/list_of.hpp>
-
-using namespace boost::assign;
-
 /**
  * Main network
  */
@@ -21,7 +17,6 @@ class CBaseMainParams : public CBaseChainParams
 public:
     CBaseMainParams()
     {
-        networkID = CBaseChainParams::MAIN;
         nRPCPort = 8332;
     }
 };
@@ -35,7 +30,6 @@ class CBaseTestNetParams : public CBaseMainParams
 public:
     CBaseTestNetParams()
     {
-        networkID = CBaseChainParams::TESTNET;
         nRPCPort = 18332;
         strDataDir = "testnet3";
     }
@@ -50,7 +44,6 @@ class CBaseRegTestParams : public CBaseTestNetParams
 public:
     CBaseRegTestParams()
     {
-        networkID = CBaseChainParams::REGTEST;
         strDataDir = "regtest";
     }
 };
@@ -64,7 +57,6 @@ class CBaseUnitTestParams : public CBaseMainParams
 public:
     CBaseUnitTestParams()
     {
-        networkID = CBaseChainParams::UNITTEST;
         strDataDir = "unittest";
     }
 };
diff --git a/src/chainparamsbase.h b/src/chainparamsbase.h
index eaf3fea1b6..cebe7aa01a 100644
--- a/src/chainparamsbase.h
+++ b/src/chainparamsbase.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -32,7 +32,6 @@ protected:
 
     int nRPCPort;
     std::string strDataDir;
-    Network networkID;
 };
 
 /**
diff --git a/src/chainparamsseeds.h b/src/chainparamsseeds.h
index 575e129334..6b6e5103f5 100644
--- a/src/chainparamsseeds.h
+++ b/src/chainparamsseeds.h
@@ -8,606 +8,518 @@
  * IPv4 as well as onion addresses are wrapped inside a IPv6 address accordingly.
  */
 static SeedSpec6 pnSeed6_main[] = {
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x69,0x6a,0x7e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xd1,0x04,0x7d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0x17,0x0c,0x6c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x0a,0x33,0xdb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0xc7,0x49,0xc6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0x48,0x95,0x78}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x09,0x71,0x04}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0xa5,0x0c,0xb9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0x80,0x30,0xd1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa6,0x4e,0x07,0xbd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xf1,0x8f,0x57}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x09,0x6e,0x28}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xaf,0xdc,0xd4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x6b,0x9b,0x52}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xc6,0x5c,0x63}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x89,0xde,0xed}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xd9,0x76,0xa9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0xa4,0x91,0xea}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x4e,0xfa,0x03}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8d,0x00,0xa9,0x6c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xc8,0x62,0xaf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0xba,0xf3,0x93}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xef,0xc9,0xc2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x17,0xd5,0x0e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x28,0x70,0x48}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xc2,0x97,0x72}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xc6,0xf0,0x8a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x01,0x21,0xc5,0x6e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x01,0x22,0xb4,0xf5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x01,0xca,0x80,0xda}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x02,0x23,0xc3,0x19}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x64,0x7b,0x13}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xaf,0x91,0xa9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xc7,0x85,0xc1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xc7,0x97,0x0a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xe4,0x01,0xe6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x0e,0xc8,0xc8,0x91}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x12,0xe4,0x00,0xbc}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x12,0xe4,0x00,0xc8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0x1e,0xf3,0x99}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0x58,0xe8,0x31}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0x63,0x69,0x09}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xe2,0x89,0xd0}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xe3,0xb1,0xa1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xe3,0xbf,0x32}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xe5,0x2d,0x20}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xec,0x90,0x45}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xfd,0x94,0x71}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xfd,0xf1,0x16}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xff,0xe3,0xe7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x14,0xcd,0xde}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x17,0x78,0xfc}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x5e,0x62,0x60}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x62,0x5f,0xc9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x6f,0x5a,0x37}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x77,0x77,0x69}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x8a,0x19,0x95}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0x03,0xd6,0x2d}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0xba,0x57,0x2e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x8a,0x09,0xd0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0x85,0xa8,0x46}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0xdc,0x92,0xcc}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0x19,0x6f,0xeb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x17,0xce,0x8c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x81,0x72,0x23}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x79,0x42,0x9d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x4f,0x4f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd0,0x51,0x01,0xc5}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x90,0xba,0xb1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x17,0xd7,0xae}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xe5,0x4d,0x20}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x32,0xb0,0x4b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x28,0x2b,0x93}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xe6,0xcc,0x2d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x8a,0x70,0xe2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xb8,0x08,0x1b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xdc,0xa3,0x12}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x88,0x8a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0xa8,0x86,0xa3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x17,0xe4,0x18}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x9a,0x70,0x2e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xe9,0x62,0xeb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x03,0x65,0x6f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x81,0xd0,0x05}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0xc5,0x9a,0x8a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xd6,0x6f,0x94}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0x49,0x57,0x3f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xc6,0x29,0x4a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x45,0xad}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x34,0x15}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x3b,0x3f,0x4c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x19,0xfe,0x01}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x59,0x20,0x56}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x79,0x3c,0x44}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc8,0x4a,0xf2,0x44}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x46,0x42,0x04}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x82,0x58,0x66,0xc8}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x3e,0x3f,0xed}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0xbf,0x85,0xf5}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xda,0x41,0xd1,0x5d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0xba,0x65,0x62}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0xba,0xfa,0xba}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0xcc,0x99,0x6b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x2c,0x10,0xe7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x2c,0x2c,0x0b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x78,0xa8,0xcc}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x8f,0x56,0x1a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x4b,0x18}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbc,0x44,0xa9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xc0,0x5f,0x96}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xc9,0xf6,0x74}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xcd,0x0a,0x8c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x0a,0xd2,0x11}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x13,0x8a,0x9a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x1c,0xcc,0x7b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x1c,0xcd,0x43}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x26,0xeb,0xe5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xa3,0x4c,0xe6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xa6,0xa2,0x5b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xad,0xbe,0x32}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xe3,0x42,0x84}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xe5,0xee,0xbb}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xec,0x74,0xd1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2f,0x37,0x0e,0x41}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x07,0xfc,0xe5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x2e,0x9f,0x5b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x4e,0x31,0xb5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x4e,0xe7,0x39}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x4f,0x99,0x41}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x74,0x22,0x2c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x7e,0x56,0xfd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x8e,0x29,0x17}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xc7,0x71,0xc1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xc8,0x4e,0x6b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xce,0x8a,0xb1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xfc,0x34,0x31}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xa5,0x19,0x4b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xa9,0x6b,0x28}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xb3,0xbe,0x38}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xbb,0x52,0x79}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xf6,0x55,0xf6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3a,0x4a,0x07,0xcd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3a,0x60,0xb7,0x79}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3d,0x3e,0x3a,0x26}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3d,0x3f,0x5b,0x48}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3d,0x3f,0x5b,0x70}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3d,0x48,0xd3,0xe4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0x2b,0x28,0x9a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0x2b,0x82,0xb2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0x50,0xb9,0xd5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0x6d,0x31,0x1a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0xad,0x8b,0x3a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0xb5,0xee,0xba}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0xd2,0x72,0x7f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3f,0x8d,0xe4,0x8a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3f,0x99,0xd5,0x4e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3f,0xdf,0x54,0x91}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3f,0xfb,0x58,0x70}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x40,0x1f,0x6e,0x32}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x40,0x22,0x79,0x2d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x40,0x72,0x06,0x2a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x40,0x8c,0x7d,0x62}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x40,0x9c,0xc1,0x64}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x41,0x1e,0x2f,0x74}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x41,0x23,0x84,0xb1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x41,0x60,0xc1,0xa5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x41,0x6f,0xbd,0x1a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0x44,0x0a,0x1e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0x72,0x21,0xfa}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0x82,0x2e,0x3f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xaf,0xd7,0x87}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xbe,0xfd,0xa5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xc2,0x26,0xfe}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xf4,0x62,0x6f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xa2,0xee,0x1e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xa9,0xff,0x11}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xb7,0xad,0x19}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xdb,0xe9,0x8c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xe3,0xf0,0x73}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xf7,0xde,0x47}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x44,0x2b,0x72,0x42}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x44,0x34,0x21,0x24}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x44,0xc6,0xf5,0xf1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x0c,0xe2,0xa5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x0d,0xc6,0xbc}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x0f,0xb3,0x3e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x27,0xef,0x2f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x2f,0x2d,0x57}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x3e,0xd9,0xce}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x40,0x2a,0x1f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x40,0x51,0x3d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x43,0xdb,0xc8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x5a,0x84,0x9d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x5e,0x1e,0xb1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x88,0xaf,0xf1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0x3d,0x61,0xe4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0x7b,0x76,0x84}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0x3b,0x98,0xb6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xc6,0xf8,0x97}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xc8,0xf2,0x59}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xe1,0xb3,0x9d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x0e,0xbb,0x33}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x26,0x22,0xb4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x34,0x48,0xbb}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x5b,0x90,0xb6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xa7,0x31,0xd9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xc9,0xf3,0x37}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xdf,0x3c,0xf9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xe4,0x99,0x66}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x49,0x1a,0x65,0xe4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x49,0x32,0x9e,0xc8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x49,0xb5,0xcc,0xaa}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4a,0x39,0xc7,0xb4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4a,0x3f,0xde,0xe2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4a,0x51,0xe7,0x15}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4a,0xc1,0x7e,0x52}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4a,0xcf,0xeb,0xa4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4b,0x53,0xc5,0x72}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4b,0x90,0x72,0x09}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4c,0x70,0x05,0xf7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4c,0xae,0x14,0xf7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0x25,0xf0,0x8e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0x39,0xca,0x6b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0xac,0x7b,0x35}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0xdd,0x5b,0xfd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0xeb,0x30,0x30}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0xf5,0x4e,0x02}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x08,0x3a,0xf9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xdd,0x64,0x12}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xc6,0x11,0x07}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbe,0x7b,0x2e,0xf1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x40,0xb7,0x02,0x5b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x6d,0x52,0x7d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0xb0,0x0c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x11,0xbe,0x2a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0x9f,0xa3,0x61}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x06,0x4a,0x04}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xce,0x7d,0xaf,0xf3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xc9,0x94,0xb9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0x50,0x1c,0x36}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x5d,0x73,0xca}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x43,0xa7,0xec}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x79,0xec}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x78,0xd3,0xc4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xa2,0xc4,0xa1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x1b,0xbf,0xb6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x81,0xec,0x8d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x83,0x58,0x2f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x9d,0xcd,0x06}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4f,0x84,0xe6,0x90}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4f,0x8f,0xbc,0x9b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4f,0xa0,0xdd,0x8c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4f,0xa1,0x6f,0x72}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0x64,0xbd,0x03}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0x93,0x8c,0x79}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0xcb,0x4b,0x85}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0xdc,0x63,0xe3}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0xde,0x14,0xa9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0xf1,0x01,0x07}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0x17,0xbf,0xf3}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0x26,0x0b,0xca}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0x50,0x09,0x47}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0x6e,0xd5,0xa5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0x85,0x9b,0xed}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0xab,0x22,0x25}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x51,0xb5,0x9b,0xb4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0x27,0x9c,0x89}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0x49,0xa1,0x5f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0x82,0x2d,0x28}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xa5,0x99,0x2f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xa8,0x80,0x85}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xb3,0xe1,0x76}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc2,0xf5,0x9e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc7,0x66,0x0a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xd3,0x1e,0xf3}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xd9,0x85,0x91}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xdd,0x80,0x23}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xdd,0x83,0xb1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xe9,0xe1,0xcd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x00,0xf9,0x92}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x59,0x1f,0xf9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x80,0x1d,0xe7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x80,0xfd,0x8e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x8f,0x82,0x38}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x96,0x02,0x63}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x96,0x09,0xc4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xa1,0x40,0x2d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xd4,0x67,0xd4}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xd4,0x6f,0x72}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xc6,0x5c,0x62}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x13,0x20,0x6c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x79,0x0c,0xaa,0xb7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3d,0x98,0xed,0xc6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xcb,0xe4,0x47}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x75,0xac,0xa4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0x93,0xe5,0xe2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd0,0x4a,0x78,0x4d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xec,0xa5,0x18}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xc8,0x1c,0x48}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x2f,0x6c,0x7c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x60,0x4d,0x5e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x6c,0x4b,0x5b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x9b,0xd9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xdc,0x87,0x39,0xe6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x17,0xb8}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xfe,0x1c,0x14}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0x50,0x00,0x5f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0x7f,0x98,0x0d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0x49,0x2a,0x24}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x9b,0x51,0x3e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4b,0x45,0xb2,0x02}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x3d,0xaf,0xdf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x28,0x81,0x88}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x65,0x11}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xca,0xfe,0xab}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x40,0x35,0xf6,0x2e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0xc7,0x73,0x57}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xdd,0x80,0x12}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0xac,0xbc,0x8e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x39,0xc4,0x81}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0xfa,0xfc,0x39}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x41,0x7d,0x17,0x62}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xed,0x75,0xc9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x76,0xf4,0xcf,0x05}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xa7,0xbd,0xda}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0xc2,0x1a,0xaa}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xa2,0x55,0xe2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0xc7,0xaa,0x88}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xc6,0x07,0xe7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x4b,0xe9,0xa9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4b,0x48,0x93,0x28}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x27,0x51,0x99}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xca,0x70,0x39,0xd6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x4f,0x99,0x45}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xa8,0x19,0xe5}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0x5f,0xe2,0x92}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0xa9,0x84,0x8b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x0a,0xaa,0x5e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xe5,0x4d,0xa7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xff,0x90,0xb0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x32,0xee,0x5e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x79,0xa6,0x31,0xc3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xb7,0xd9,0xc1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x82,0xb9,0x6a,0x0c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x62,0x73}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xdd,0xfe,0x4c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xa0,0x09,0x1e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x4c,0xc3,0xa4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xd9,0x77,0x37}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0xf2,0xdc,0x5e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xb5,0xe2,0x3c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0x03,0xac,0xd2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x92,0xb9,0x80,0x2f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x4c,0x3e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xe2,0x95,0x39}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x77,0x39,0xd0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0xf0,0x3c,0x95}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd0,0x4e,0x65,0x3c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x02,0x74}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0x11,0x4f,0xa1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x01,0xce,0x14}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6a,0xbb,0x5e,0xc1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc4,0x08,0x2c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0x06,0xfd,0xc7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xce,0xf8,0x04,0x76}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x83,0xb3,0xff}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xef,0xc2,0xa4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x40,0x61,0xe9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xf6,0x4b,0x08}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xfe,0x51,0x1f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xfe,0x96,0x36}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0x02,0x22,0x68}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0x0f,0x3d,0x3c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0x11,0x19,0x87}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0x2a,0x90,0x13}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0xd4,0xd2,0x87}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0xd7,0xa5,0xe7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0xee,0x8c,0xb0}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0xf0,0x1f,0xb8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0x19,0xd6,0x89}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0x8b,0xa3,0x84}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0xc7,0x04,0xe4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0xd6,0x3d,0xd1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0xd6,0x6c,0x4d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x56,0x7b,0x10,0x11}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x57,0x30,0x2a,0xc7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x57,0x68,0xa8,0x68}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x57,0xe5,0x49,0xab}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc0,0x48,0x16}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0x40,0x02,0x36}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xff,0x8c,0x0e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0x89,0x91,0x21}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0x50,0x1f,0xb6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0x6b,0x40,0x9b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x22,0x28,0xaf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x16,0x1d,0x7f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0x0d,0x56,0x1f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xbe,0x37,0xe2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0x19,0xeb,0xbd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0x17,0x07,0x6c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xce,0xf8,0xda}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x24,0x74,0x0f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0x52,0xe9,0xde}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x56,0x1a,0x3f,0xf2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x67,0xf8,0xbd,0x61}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0xc8,0x54,0xd2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x2e,0x42,0xc4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x63,0x05,0xae}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0xa9,0xb9,0xbd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x32,0xeb,0xa9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0x39,0x94,0xd9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xdd,0x6a,0x11}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0xa5,0x73}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x52,0x6b,0xb3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x17,0x34,0xd7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x76,0x7f,0x3d,0x33}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x1b,0x43,0x51}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcf,0xe5,0x4a,0x08}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x23,0x0a,0xa6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x69,0x67,0x5c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0xcf,0x77,0x01}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x3a,0x68,0xa6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xea,0xf4,0x7f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xfa,0x92,0x21}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0x0f,0x3a,0xa0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x39,0x3e,0xfe}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x5f,0xce,0x2c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xc1,0xa6,0xc8}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4c,0x7e,0xfb,0x96}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc7,0x66,0x0a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x27,0x4d,0x6b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0xc1,0xa0,0xeb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x79,0xa0,0x3b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0xd2,0xcc,0x1d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf3,0x12,0x69}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x41,0x3c,0xf2,0x22}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4a,0x6b,0x64,0x65}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x87,0x9f,0x8b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x95,0x9a,0x9b,0xeb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x6b,0xfe,0x79}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xf4,0x36,0x05}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x61,0x4d,0x22,0x23}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x2e,0x95,0x5d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xf7,0xb4,0x0c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xbe,0x14,0xdc}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x09,0x46,0xb2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0x9b,0xf7,0xd3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xc8,0x18,0x65}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xcf,0xa3,0x83}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x1f,0x64,0x9b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xf1,0xfe,0x17}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x82,0xcc,0x08,0xd5}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9b,0x36,0xa4,0x91}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4c,0x4a,0xcb,0x39}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x53,0xc9,0xbb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4a,0xc4,0x64,0xaf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0xca,0x5e,0x60}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x68,0x6a,0x0c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x9d,0x7e,0xd0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xd3,0xe6,0x78}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x57,0xec,0xc4,0x4d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0x61,0x38,0x62}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0x86,0xb2,0x59}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0x96,0xe9,0x13}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xa8,0x85,0x03}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xd0,0x12,0xf6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xd0,0x21,0xca}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0x12,0x1c,0x15}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0x55,0xdc,0x54}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0xa3,0xe3,0x1c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0xb8,0x53,0x3c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0xe7,0x60,0x53}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0xec,0x31,0x75}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x5a,0x42,0xd1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x6a,0xc2,0x61}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x86,0x4b,0x73}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x98,0xc1,0x24}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x98,0xdb,0x23}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xc5,0x0a,0xea}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xd1,0x4d,0x65}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xd2,0x6a,0x93}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xd6,0xc8,0xcd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xdf,0x73,0x26}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xea,0x30,0xe8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xfa,0x56,0x12}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5c,0x1b,0x07,0xd1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5c,0xff,0xcf,0x49}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0x4a,0xa3,0xea}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0x54,0x72,0x6a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0x98,0xa6,0x1d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0xab,0xd8,0xdd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5d,0xb9,0xb1,0x47}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x13,0x0c,0xf4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x2a,0x73,0x32}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x4f,0xb1,0xce}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x88,0x93,0x77}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x8f,0xf5,0x05}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xbc,0x32,0x27}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xbe,0xe3,0x70}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xc6,0x87,0x1d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xe2,0x6b,0x56}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xf2,0xdb,0x5a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xf2,0xe5,0xa8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xf4,0xa0,0x54}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0x1f,0x0a,0xd1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0x55,0x19,0x29}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0x69,0xa1,0x88}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0x9a,0xa5,0x2d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0x9a,0xc8,0xd8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0xa7,0x6d,0x7d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0xd3,0x7d,0xe7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0xd3,0xd8,0xeb}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0x21,0x19,0x11}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0x2b,0x82,0xb2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x61,0x76,0x08,0xec}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0x66,0x06,0x7d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xca,0x14,0x2d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xd9,0x7d,0xe1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xea,0xd2,0x6f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xed,0x14,0x7b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xff,0x90,0xb0}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x63,0x71,0x40,0x2b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x63,0xe5,0x16,0x08}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x67,0x01,0xd4,0x13}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x67,0x1e,0x2a,0xbd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x67,0xe0,0xa5,0x30}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x67,0xf3,0x5e,0x8c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x68,0x83,0x6b,0x6b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x68,0x83,0x74,0xb8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x68,0x8f,0x00,0x9c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x68,0xdb,0xb8,0x09}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6a,0xb9,0x26,0xae}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6b,0x06,0x04,0x91}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6b,0x96,0x08,0x1b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6b,0x96,0x21,0x14}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6b,0xaa,0xe4,0x81}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6b,0xaa,0xf0,0xad}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x33,0x14,0x56}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x3d,0x95,0xde}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x3d,0x97,0xac}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0xa1,0x81,0xf7}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0xaa,0x8c,0x15}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0x3c,0xd3,0xd8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0x49,0x2a,0x24}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0x49,0xac,0x8a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xa3,0xeb,0xef}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xbe,0xc4,0xdc}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xc9,0x87,0xd8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xe4,0x98,0x02}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xe4,0x9a,0x51}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xe6,0xdc,0x7d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xea,0x9c,0xda}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xeb,0x31,0x1b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xfe,0x01,0xaa}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xc2,0x03,0x46}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb6,0xa3,0xcb,0x1e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xe3,0xff,0x0e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xcb,0xfd,0xc3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6f,0x03,0x90,0xc2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x69,0x64,0x44}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x89,0x75,0xca,0x1a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xe5,0xa9,0x59}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x89,0x74,0xaa,0x19}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0xc8,0x22,0x26}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0xd3,0x98,0xa5}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0xc3,0x8e,0x43}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x19,0x96,0xc7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0x03,0x57,0xaf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x89,0xe2,0x98,0x50}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xd8,0xad,0x36}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xa2,0xc1,0x83}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x9d,0x96}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x15,0x3d,0xcf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x45,0xa4,0xc1,0x49}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0x75,0x0b,0xbd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0x19,0xff,0x8f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xfe,0x51,0x1e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xef,0xd6,0x28}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xcc,0x37,0x28}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0x2d,0xf4,0x02}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x3f,0x0e,0x07}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x87,0xb1,0xbc}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xe1,0xa4,0x14}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x44,0x68,0x09,0x82}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x1c,0xcb,0xcf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0x7f,0xe2,0x37}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x37,0x92,0x07}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xbc,0x14,0x0c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x10,0x26}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0xd9,0x7c,0xcb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xd2,0xc0,0x3b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4c,0x1b,0x13,0x97}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0x5c,0x1e,0x6f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0x9f,0x93,0xa7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xbf,0xa0,0xb7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0x3a,0xa8,0xaf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x3f,0xb8,0xcb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x1c,0x32,0x5f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xc3,0xd6,0x52}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0x5b,0xac,0xde}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcc,0x10,0xf3,0x2c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x2b,0x8a,0x10}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4f,0xa1,0x6f,0x72}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcc,0xd2,0xba,0x85}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x9e,0x45}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd8,0xb8,0x08,0x1a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x48,0x70,0xcd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x5b,0x6d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x7b,0xfe,0x6c,0xa6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x73,0xad}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0x5b,0xac,0xda}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9f,0xfd,0x17,0x84}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x74,0x37,0x41}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x86,0x13,0x1f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x12,0x5a,0x29}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x31,0xc0,0x7a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x95,0xd2,0x87,0x3a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xbc,0x19,0xe2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xeb,0x45,0x54}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x70,0x7c,0x47,0x00}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x71,0x92,0x44,0xfb}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x73,0x1d,0x11,0x52}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x73,0x46,0xb0,0x11}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x75,0x29,0xa2,0xb8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x76,0x1b,0x08,0xaa}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x77,0xe6,0x07,0xd3}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x77,0xf6,0x47,0x34}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x79,0xac,0x08,0x64}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x7a,0x80,0x6d,0x94}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x7b,0xe7,0xe0,0x3f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x80,0xaf,0xc3,0x1f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x80,0xc7,0xa4,0x60}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x80,0xc7,0xfe,0xf4}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x81,0x61,0x45,0x4c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x81,0x7b,0x07,0x07}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x81,0x7b,0x07,0x27}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x81,0xba,0x11,0x11}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x83,0xf7,0xa9,0xbe}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x85,0xf2,0xd1,0x3f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x86,0x66,0x5e,0x26}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x86,0x77,0x11,0x91}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x89,0x74,0xa0,0xb0}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x89,0xe2,0x22,0x2a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8a,0xd2,0xd9,0xaa}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8d,0xff,0xa6,0xc2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8f,0xd7,0x81,0x7e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0xf4,0x13}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x92,0x94,0x34,0xa2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x92,0x94,0x50,0x39}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x92,0xb9,0x13,0x1e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x92,0xb9,0x8e,0x56}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x92,0xb9,0xfd,0x33}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x94,0xfb,0x06,0xd6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x95,0x9a,0x9b,0xeb}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x95,0xd2,0x85,0xf4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x64,0x7b,0x13}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xd9,0xff,0xcf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x44,0x08,0xe2,0xaf}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5f,0x9a,0x67,0x32}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x44,0xc6,0x31,0xa4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8c,0xce,0x5f,0x0e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xf8,0x5e,0x30}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xca,0x26,0xad}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x54,0x1a,0xd2,0xd9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xd7,0xd0,0xdd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xc0,0x4e,0xc2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xcd,0xad,0x4a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0x98,0x10,0x49}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x3a,0x6b,0x9d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8b,0x1e,0xaa,0xf0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xa3,0xbf,0xf1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xc0,0x30,0x8a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x93,0x0f,0x26}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0xe7,0x39,0x23}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9f,0x95,0x69,0x88}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x21,0x07,0xc2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x34,0x45,0x29}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xec,0x51,0xb6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0x62,0x49,0x45}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcc,0x1b,0x3d,0xa2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xcf,0x9b,0xb3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x94,0xd2,0xa1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xc6,0x07,0x35}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xdd,0x88,0x4a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x63,0xf3,0xaf,0x27}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xea,0x98,0x74}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x85,0x67,0x4a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x47,0x6d,0x5e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0xa5,0xab,0x3b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x37,0x5a,0x04}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xc0,0x4d,0xa2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0xea,0x81,0xe9}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0xe2,0x6c,0xed}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x14,0x72,0x85}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x64,0x04,0x6c,0x6b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x45,0x49,0x5a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x42,0x47,0xf2,0x12}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0x42,0x5f,0xf3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x5a,0x0f,0xfd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x56,0x15,0x08,0xfb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x61,0x58,0x4b,0xb2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0x41,0x11,0x2e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x78,0xb7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x0e,0xbb,0x33}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x56,0x65,0xe2,0x39}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0x48,0x94,0xa7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4d,0x42,0x25,0x42}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x79,0x03,0x30}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x44,0xcf,0xc8,0x31}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x59,0xad,0x5b,0xd6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xc6,0x7b,0x12}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4c,0x4d,0xbc,0xf2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0xdc,0x73,0x02}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xd7,0x72,0x45}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x53,0xf6,0x4b,0x06}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x12,0xcd,0xcd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x81,0x82,0x60}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x87,0x00,0x13,0x4d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xf7,0x16,0x10}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x5f,0x18,0xba}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4f,0xa8,0xc1,0x16}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0x72,0x69,0xfb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0x23,0x94,0xa2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x3b,0x08,0x53}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xf1,0x83,0x05}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x43,0xaa,0x72,0xc1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xcf,0x11,0xcd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x62,0xed,0x14,0x7b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xf1,0x94,0x5c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0x13,0x23,0x7c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6f,0x5a,0x96,0x39}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0xe2,0x90,0x78}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xc4,0x8e,0xa3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xf1,0x87,0xc1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xb6,0x80,0xef}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x74,0x0a,0xf2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd2,0xd8,0xd1,0x7a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x2e,0x9e,0x86}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x61,0x21}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x89,0xf8,0x99,0x75}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x97,0xe0,0xf8,0xfc}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x99,0x79,0x4b,0xe5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x99,0x7f,0xfb,0x43}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9a,0x14,0x02,0x8b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9d,0x0d,0x3d,0x05}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9e,0x3a,0xad,0x30}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x9f,0xfd,0x17,0x84}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xd1,0x6e,0xda}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xd5,0xfe,0xcd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xef,0xfe,0x64}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf2,0x96,0x27}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf3,0x51,0x8a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf3,0xeb,0x38}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf4,0x4f,0x10}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf5,0xd9,0x77}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf8,0x66,0x75}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xfb,0x6c,0x35}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xfe,0x95,0x8b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xff,0x74,0x4e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa6,0x46,0x5e,0x6a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa7,0x58,0x2d,0x7c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa7,0x58,0x78,0xd2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0x1a,0x31,0x2b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0x1e,0x0e,0x06}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0x50,0x72,0xc5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xa7,0xd6,0xf3}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xd0,0xdb,0x6c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xdc,0x43,0x9c}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xec,0x65,0x22}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0x3d,0x61,0xe5}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0x4f,0x73,0x6a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x3b,0x5c,0x2a}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4b,0x4a,0x98,0x7b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbc,0x4e,0x96}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0xee,0x20,0x75}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x28,0x48,0x4f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x7d,0x40,0x5c,0x11}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x67,0x06,0xdd,0x32}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x35,0x3f,0x1d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x56,0x1f,0x7d,0x81}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xa5,0x99,0x2f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x56,0x59,0x2a,0x6b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x4f,0x4f,0x8d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0x1e,0x3c,0xd2}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xbd,0x35,0x7d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd2,0xc3,0xda,0x53}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xce,0xf8,0xb8,0x7f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0xc2,0x38,0x9a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0x42,0xaa,0xef}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3d,0x82,0x6b,0x87}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0x53,0x17,0x18}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x7d,0x59,0x46,0xdb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xda,0x68,0xc1,0xd2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xdc,0xe9,0x6f,0xcd}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x2e,0x27,0x45}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xca,0x4b,0x8d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0x3d,0x04,0xa4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x47,0xaa,0xb7,0xaa}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x81,0x28,0x20}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0xf1,0xae,0xa4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0xe6,0xd7,0xec}, 8333},
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+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0xff,0xed,0xf1}, 8333},
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+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x33,0x17,0xe0}, 8333},
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+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xae,0x39,0xd4,0x79}, 8333},
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+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xaf,0x7e,0x7c,0x5b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xaf,0x7e,0x7c,0x5c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x0a,0x74,0xf2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x24,0x23,0x7e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x24,0x63,0xde}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0x7c,0x6e,0x2f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0xc2,0x21,0x2c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0xdf,0xc9,0xc6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x3e,0x1a,0x53}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x3e,0x24,0x30}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x3e,0xd4,0x8d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x3e,0xfe,0x3b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x4e,0xfa,0x03}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x9b,0x56,0xe2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xaf,0x86,0x23}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xf8,0x6f,0x04}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xfe,0x01,0xaa}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0xfe,0x22,0xa1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb3,0x2b,0x72,0x0e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb6,0xd5,0xd0,0x1c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x44,0x02,0x2e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x48,0xee,0x2a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x5e,0xe2,0x22}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x5e,0xe3,0x3a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x6b,0x8b,0x3a}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb8,0x6b,0xce,0x2d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xd0,0x01,0xc2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0xa5,0xfc,0x17}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xca,0x3c,0x45,0xe8}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x36,0xf6,0x61,0xd3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xed,0xd9,0xa0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x2e,0x23,0x2f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6c,0x11,0x4e,0x13}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x58,0xc0,0xdd,0x61}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x83,0x72,0xba,0x05}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xed,0xf7,0xe1}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc4,0x0e,0x04}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x2e,0x67,0x4b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xa3,0xef,0xe4}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x2e,0xa5,0xdc,0x47}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x92,0xb9,0xac,0xa3}, 8333},
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-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x32,0x86,0xcc,0xa8}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xce,0xb1,0x26}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x53,0x4e,0x26}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x8c,0x71,0xd2,0xd3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xad,0x34,0x55,0x22}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xa2,0xf3,0x89,0xe2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x17,0x17,0x34,0x87}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4f,0xad,0x55,0x92}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x4b,0x18}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x7a,0x5c,0x88}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x9a,0x6e,0x3a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x18,0x24,0x19}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x90,0x4c,0x3d,0xb7}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x7a,0x80,0x6d,0x94}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3f,0x8e,0xd7,0xa0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0xbb,0x16,0x5a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0x79,0x09,0xcb}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x57,0xe6,0x0d,0x8d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x25,0x8b,0x0b,0x63}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcf,0xc6,0x72,0xe5}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0x11,0x3f,0x2b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0xa9,0x42,0x42}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x99,0x32}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x05,0x09,0x8b,0x05}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x60,0xfc,0x66,0xe2}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb0,0xc5,0x66,0xbe}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0xe4,0x98,0xcc}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x3e,0x94,0x8c,0x69}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x0c,0xbd,0x44}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x0a,0x30,0x75}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x15,0xd8,0x9c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x26,0x2f,0xe0}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x2d,0xc0,0x81}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x35,0x81,0xe6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x35,0x83,0x72}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x37,0x35,0x3d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x37,0x35,0x3f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x3d,0x77,0x02}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb9,0x3d,0x94,0xcb}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xba,0x02,0xa7,0x17}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x5c,0x4b,0xb2}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x7a,0x5c,0x86}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd3,0x64,0x17,0x77}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0xd6,0x75,0x46}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x26,0x48,0x4e,0x35}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x52,0xc1,0x7a,0xb6}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x85,0xf2,0xcc,0xae}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4e,0x5b,0x62,0xea}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0x03,0xd6,0xbc}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x18,0xeb,0x81,0x5e}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xce,0x47,0xb3,0x74}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x6a,0xa5,0x3c}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x46,0x45,0xee,0x54}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5e,0x17,0xa8,0x38}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x55,0x11,0xc2,0xa3}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x6d,0x57,0x01,0x2f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x50,0xde,0x7a,0x5d}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0xae,0x03,0xa0}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x1f,0xd3,0xc1,0x2b}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x4c,0x09,0xf5,0x13}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x48,0x26,0xb3,0x7a}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x9f,0x2e,0x54}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x6b,0x13,0x53}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x51,0xdf,0x7f}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xb2,0x97,0x21,0x80}, 8333},
-    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0x5b,0xcc,0xd2,0xa2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0x8a,0x09,0xd0}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0xa5,0xd1,0x94}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbc,0xe2,0xce,0xef}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbe,0x0a,0x08,0x7c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xbe,0x0a,0x0a,0x93}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x00,0x82,0x8e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x03,0x59,0x9f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x49,0xea,0x8a}, 8333},
     {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x4b,0x5f,0x6b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x5f,0x64,0x66}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0x9b,0x54,0xb5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xa9,0xe9,0xce}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xc6,0x5d,0x56}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc0,0xe3,0x87,0xd8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x00,0x6d,0x03}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x4d,0x32,0xd0}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x6d,0x44,0x3e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0x96,0x79,0x25}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc1,0xe0,0x45,0x62}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x4f,0x08,0x25}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc2,0x8d,0x56,0x0a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x0c,0xb4,0x5e}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x38,0x3f,0x0a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x74,0x5d,0x5d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x9a,0xae,0xe2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0x9f,0x6f,0x62}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0xa9,0x8a,0x02}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0xbd,0x7e,0x23}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc3,0xc5,0xaf,0xbe}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc5,0xf2,0x5d,0x52}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x0b,0xd6,0x93}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc6,0x31,0x29,0x15}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0x21,0x7c,0xba}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xcc,0xba,0x92}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xe9,0xee,0x73}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xc7,0xf1,0xbd,0x42}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xca,0x3c,0x44,0xf2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xca,0x3c,0x45,0xe8}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcb,0xb7,0x97,0x27}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcb,0xdb,0x0e,0xcc}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcc,0x2c,0x7b,0x6d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcc,0x2c,0x7b,0xa2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcc,0x2d,0x78,0xb2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xce,0xbe,0x86,0x2c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xce,0xf8,0xb8,0x7f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xcf,0xf4,0x49,0x08}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd0,0x42,0x1e,0x1b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd1,0x51,0x09,0xdf}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd1,0x69,0xf3,0xe5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd1,0x7e,0x46,0x9f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd1,0x8c,0x1e,0xa9}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd1,0xa5,0x80,0xeb}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd1,0xbe,0x02,0xf2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd2,0x42,0xfe,0xec}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd2,0x49,0x1b,0x21}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd3,0x48,0x42,0xe5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x19,0x25,0x7c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x47,0xeb,0x72}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x47,0xfc,0x6d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0x72,0x30,0x1f}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd4,0xae,0x97,0x76}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x42,0xcd,0xc2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x81,0xf8,0x8b}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0x88,0x57,0x22}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xa5,0x52,0x85}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xa7,0x11,0x06}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xb3,0x9e,0xfd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xbd,0x35,0x7d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd5,0xde,0xd0,0x5d}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd8,0x31,0x9e,0xa1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd8,0x37,0x8f,0x9a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd8,0x83,0x5b,0x64}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd8,0xf5,0xce,0xb5}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd8,0xfa,0x8a,0xe6}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0x0b,0xe1,0xbd}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0x17,0x06,0x85}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0x4b,0x58,0xb2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0xac,0x8f,0x8c}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0xc3,0xa9,0xd1}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xd9,0xc4,0xf8,0x6a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xdb,0x8a,0xa1,0xa2}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xde,0xa7,0xf8,0x5a}, 8333},
+    {{0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xdf,0x12,0xfe,0x37}, 8333},
     {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0x0a,0x26,0x27,0x21,0xae,0x94,0xd5,0xc2,0x72,0x24}, 8333},
     {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0xea,0xb9,0x5b,0x63,0x1d,0x94,0xe2,0xed,0xec,0xa1}, 8333},
     {{0xfd,0x87,0xd8,0x7e,0xeb,0x43,0xce,0x36,0xa1,0xc1,0xd6,0x64,0x43,0xfb,0xb3,0xe7}, 8333},
diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
index 0fb4411e63..71579bb309 100644
--- a/src/checkpoints.cpp
+++ b/src/checkpoints.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/checkpoints.h b/src/checkpoints.h
index 65c5165f0f..29dc5f83a9 100644
--- a/src/checkpoints.h
+++ b/src/checkpoints.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/checkqueue.h b/src/checkqueue.h
index 2ee46a1210..7ca825c16f 100644
--- a/src/checkqueue.h
+++ b/src/checkqueue.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -81,7 +81,7 @@ private:
                     fAllOk &= fOk;
                     nTodo -= nNow;
                     if (nTodo == 0 && !fMaster)
-                        // We processed the last element; inform the master he can exit and return the result
+                        // We processed the last element; inform the master he or she can exit and return the result
                         condMaster.notify_one();
                 } else {
                     // first iteration
diff --git a/src/clientversion.cpp b/src/clientversion.cpp
index b3414fdb4b..aae0569bba 100644
--- a/src/clientversion.cpp
+++ b/src/clientversion.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/clientversion.h b/src/clientversion.h
index 0a36eb8012..3c8c969f9d 100644
--- a/src/clientversion.h
+++ b/src/clientversion.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -15,7 +15,7 @@
 
 //! These need to be macros, as clientversion.cpp's and bitcoin*-res.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR 0
-#define CLIENT_VERSION_MINOR 9
+#define CLIENT_VERSION_MINOR 10
 #define CLIENT_VERSION_REVISION 99
 #define CLIENT_VERSION_BUILD 0
 
@@ -26,7 +26,7 @@
  * Copyright year (2009-this)
  * Todo: update this when changing our copyright comments in the source
  */
-#define COPYRIGHT_YEAR 2014
+#define COPYRIGHT_YEAR 2015
 
 #endif //HAVE_CONFIG_H
 
diff --git a/src/coincontrol.h b/src/coincontrol.h
index cf61998723..92fae9847c 100644
--- a/src/coincontrol.h
+++ b/src/coincontrol.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_COINCONTROL_H
diff --git a/src/coins.cpp b/src/coins.cpp
index c2e802c953..d79e29951b 100644
--- a/src/coins.cpp
+++ b/src/coins.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -31,32 +31,18 @@ void CCoins::CalcMaskSize(unsigned int &nBytes, unsigned int &nNonzeroBytes) con
     nBytes += nLastUsedByte;
 }
 
-bool CCoins::Spend(const COutPoint &out, CTxInUndo &undo) {
-    if (out.n >= vout.size())
-        return false;
-    if (vout[out.n].IsNull())
+bool CCoins::Spend(uint32_t nPos) 
+{
+    if (nPos >= vout.size() || vout[nPos].IsNull())
         return false;
-    undo = CTxInUndo(vout[out.n]);
-    vout[out.n].SetNull();
+    vout[nPos].SetNull();
     Cleanup();
-    if (vout.size() == 0) {
-        undo.nHeight = nHeight;
-        undo.fCoinBase = fCoinBase;
-        undo.nVersion = this->nVersion;
-    }
     return true;
 }
 
-bool CCoins::Spend(int nPos) {
-    CTxInUndo undo;
-    COutPoint out(0, nPos);
-    return Spend(out, undo);
-}
-
-
 bool CCoinsView::GetCoins(const uint256 &txid, CCoins &coins) const { return false; }
 bool CCoinsView::HaveCoins(const uint256 &txid) const { return false; }
-uint256 CCoinsView::GetBestBlock() const { return uint256(0); }
+uint256 CCoinsView::GetBestBlock() const { return uint256(); }
 bool CCoinsView::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) { return false; }
 bool CCoinsView::GetStats(CCoinsStats &stats) const { return false; }
 
@@ -71,7 +57,7 @@ bool CCoinsViewBacked::GetStats(CCoinsStats &stats) const { return base->GetStat
 
 CCoinsKeyHasher::CCoinsKeyHasher() : salt(GetRandHash()) {}
 
-CCoinsViewCache::CCoinsViewCache(CCoinsView *baseIn) : CCoinsViewBacked(baseIn), hasModifier(false), hashBlock(0) { }
+CCoinsViewCache::CCoinsViewCache(CCoinsView *baseIn) : CCoinsViewBacked(baseIn), hasModifier(false) { }
 
 CCoinsViewCache::~CCoinsViewCache()
 {
@@ -106,7 +92,6 @@ bool CCoinsViewCache::GetCoins(const uint256 &txid, CCoins &coins) const {
 
 CCoinsModifier CCoinsViewCache::ModifyCoins(const uint256 &txid) {
     assert(!hasModifier);
-    hasModifier = true;
     std::pair<CCoinsMap::iterator, bool> ret = cacheCoins.insert(std::make_pair(txid, CCoinsCacheEntry()));
     if (ret.second) {
         if (!base->GetCoins(txid, ret.first->second.coins)) {
@@ -142,7 +127,7 @@ bool CCoinsViewCache::HaveCoins(const uint256 &txid) const {
 }
 
 uint256 CCoinsViewCache::GetBestBlock() const {
-    if (hashBlock == uint256(0))
+    if (hashBlock.IsNull())
         hashBlock = base->GetBestBlock();
     return hashBlock;
 }
@@ -247,7 +232,10 @@ double CCoinsViewCache::GetPriority(const CTransaction &tx, int nHeight) const
     return tx.ComputePriority(dResult);
 }
 
-CCoinsModifier::CCoinsModifier(CCoinsViewCache& cache_, CCoinsMap::iterator it_) : cache(cache_), it(it_) {}
+CCoinsModifier::CCoinsModifier(CCoinsViewCache& cache_, CCoinsMap::iterator it_) : cache(cache_), it(it_) {
+    assert(!cache.hasModifier);
+    cache.hasModifier = true;
+}
 
 CCoinsModifier::~CCoinsModifier()
 {
diff --git a/src/coins.h b/src/coins.h
index dbe3f8bd31..fe2eaa08e5 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -9,7 +9,6 @@
 #include "compressor.h"
 #include "serialize.h"
 #include "uint256.h"
-#include "undo.h"
 
 #include <assert.h>
 #include <stdint.h>
@@ -237,11 +236,8 @@ public:
         Cleanup();
     }
 
-    //! mark an outpoint spent, and construct undo information
-    bool Spend(const COutPoint &out, CTxInUndo &undo);
-
     //! mark a vout spent
-    bool Spend(int nPos);
+    bool Spend(uint32_t nPos);
 
     //! check whether a particular output is still available
     bool IsAvailable(unsigned int nPos) const {
@@ -301,7 +297,7 @@ struct CCoinsStats
     uint256 hashSerialized;
     CAmount nTotalAmount;
 
-    CCoinsStats() : nHeight(0), hashBlock(0), nTransactions(0), nTransactionOutputs(0), nSerializedSize(0), hashSerialized(0), nTotalAmount(0) {}
+    CCoinsStats() : nHeight(0), nTransactions(0), nTransactionOutputs(0), nSerializedSize(0), nTotalAmount(0) {}
 };
 
 
@@ -441,6 +437,11 @@ public:
 private:
     CCoinsMap::iterator FetchCoins(const uint256 &txid);
     CCoinsMap::const_iterator FetchCoins(const uint256 &txid) const;
+
+    /**
+     * By making the copy constructor private, we prevent accidentally using it when one intends to create a cache on top of a base cache.
+     */
+    CCoinsViewCache(const CCoinsViewCache &);
 };
 
 #endif // BITCOIN_COINS_H
diff --git a/src/compat.h b/src/compat.h
index dffd4ecf52..7a5438a11e 100644
--- a/src/compat.h
+++ b/src/compat.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_COMPAT_H
diff --git a/src/compat/glibc_compat.cpp b/src/compat/glibc_compat.cpp
index f149a08cd5..3b9c70df7f 100644
--- a/src/compat/glibc_compat.cpp
+++ b/src/compat/glibc_compat.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/compat/glibc_sanity.cpp b/src/compat/glibc_sanity.cpp
index 607e23b568..d62d74d462 100644
--- a/src/compat/glibc_sanity.cpp
+++ b/src/compat/glibc_sanity.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/compat/glibcxx_compat.cpp b/src/compat/glibcxx_compat.cpp
index e0b4ac51f5..4f2771e57a 100644
--- a/src/compat/glibcxx_compat.cpp
+++ b/src/compat/glibcxx_compat.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/compat/glibcxx_sanity.cpp b/src/compat/glibcxx_sanity.cpp
index aafa4a6aef..cee8a98c7f 100644
--- a/src/compat/glibcxx_sanity.cpp
+++ b/src/compat/glibcxx_sanity.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/compat/sanity.h b/src/compat/sanity.h
index 7f5bc1a4fb..909c4f6da8 100644
--- a/src/compat/sanity.h
+++ b/src/compat/sanity.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/compat/strnlen.cpp b/src/compat/strnlen.cpp
index 7f3e159887..1ac266c2d1 100644
--- a/src/compat/strnlen.cpp
+++ b/src/compat/strnlen.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/compressor.cpp b/src/compressor.cpp
index c47a0f6f8c..20c154fc1e 100644
--- a/src/compressor.cpp
+++ b/src/compressor.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/compressor.h b/src/compressor.h
index efb8119d01..4a72090830 100644
--- a/src/compressor.h
+++ b/src/compressor.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/core_io.h b/src/core_io.h
index aba1928a36..0989cf7437 100644
--- a/src/core_io.h
+++ b/src/core_io.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_CORE_IO_H
@@ -19,6 +19,7 @@ extern CScript ParseScript(std::string s);
 extern bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx);
 extern bool DecodeHexBlk(CBlock&, const std::string& strHexBlk);
 extern uint256 ParseHashUV(const UniValue& v, const std::string& strName);
+extern uint256 ParseHashStr(const std::string&, const std::string& strName);
 extern std::vector<unsigned char> ParseHexUV(const UniValue& v, const std::string& strName);
 
 // core_write.cpp
diff --git a/src/core_read.cpp b/src/core_read.cpp
index 65c3a08c55..e064955ff0 100644
--- a/src/core_read.cpp
+++ b/src/core_read.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "core_io.h"
@@ -20,8 +20,6 @@
 #include <boost/algorithm/string/split.hpp>
 #include <boost/assign/list_of.hpp>
 
-using namespace boost;
-using namespace boost::algorithm;
 using namespace std;
 
 CScript ParseScript(std::string s)
@@ -44,13 +42,13 @@ CScript ParseScript(std::string s)
             string strName(name);
             mapOpNames[strName] = (opcodetype)op;
             // Convenience: OP_ADD and just ADD are both recognized:
-            replace_first(strName, "OP_", "");
+            boost::algorithm::replace_first(strName, "OP_", "");
             mapOpNames[strName] = (opcodetype)op;
         }
     }
 
     vector<string> words;
-    split(words, s, is_any_of(" \t\n"), token_compress_on);
+    boost::algorithm::split(words, s, boost::algorithm::is_any_of(" \t\n"), boost::algorithm::token_compress_on);
 
     for (std::vector<std::string>::const_iterator w = words.begin(); w != words.end(); ++w)
     {
@@ -58,20 +56,20 @@ CScript ParseScript(std::string s)
         {
             // Empty string, ignore. (boost::split given '' will return one word)
         }
-        else if (all(*w, is_digit()) ||
-            (starts_with(*w, "-") && all(string(w->begin()+1, w->end()), is_digit())))
+        else if (all(*w, boost::algorithm::is_digit()) ||
+            (boost::algorithm::starts_with(*w, "-") && all(string(w->begin()+1, w->end()), boost::algorithm::is_digit())))
         {
             // Number
             int64_t n = atoi64(*w);
             result << n;
         }
-        else if (starts_with(*w, "0x") && (w->begin()+2 != w->end()) && IsHex(string(w->begin()+2, w->end())))
+        else if (boost::algorithm::starts_with(*w, "0x") && (w->begin()+2 != w->end()) && IsHex(string(w->begin()+2, w->end())))
         {
             // Raw hex data, inserted NOT pushed onto stack:
             std::vector<unsigned char> raw = ParseHex(string(w->begin()+2, w->end()));
             result.insert(result.end(), raw.begin(), raw.end());
         }
-        else if (w->size() >= 2 && starts_with(*w, "'") && ends_with(*w, "'"))
+        else if (w->size() >= 2 && boost::algorithm::starts_with(*w, "'") && boost::algorithm::ends_with(*w, "'"))
         {
             // Single-quoted string, pushed as data. NOTE: this is poor-man's
             // parsing, spaces/tabs/newlines in single-quoted strings won't work.
@@ -102,7 +100,7 @@ bool DecodeHexTx(CTransaction& tx, const std::string& strHexTx)
     try {
         ssData >> tx;
     }
-    catch (const std::exception &) {
+    catch (const std::exception&) {
         return false;
     }
 
@@ -119,7 +117,7 @@ bool DecodeHexBlk(CBlock& block, const std::string& strHexBlk)
     try {
         ssBlock >> block;
     }
-    catch (const std::exception &) {
+    catch (const std::exception&) {
         return false;
     }
 
@@ -131,6 +129,11 @@ uint256 ParseHashUV(const UniValue& v, const string& strName)
     string strHex;
     if (v.isStr())
         strHex = v.getValStr();
+    return ParseHashStr(strHex, strName);  // Note: ParseHashStr("") throws a runtime_error
+}
+
+uint256 ParseHashStr(const std::string& strHex, const std::string& strName)
+{
     if (!IsHex(strHex)) // Note: IsHex("") is false
         throw runtime_error(strName+" must be hexadecimal string (not '"+strHex+"')");
 
diff --git a/src/core_write.cpp b/src/core_write.cpp
index b4e82b986e..c3babec2fc 100644
--- a/src/core_write.cpp
+++ b/src/core_write.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "core_io.h"
@@ -127,6 +127,8 @@ void TxToUniv(const CTransaction& tx, const uint256& hashBlock, UniValue& entry)
     }
     entry.pushKV("vout", vout);
 
-    if (hashBlock != 0)
+    if (!hashBlock.IsNull())
         entry.pushKV("blockhash", hashBlock.GetHex());
+
+    entry.pushKV("hex", EncodeHexTx(tx)); // the hex-encoded transaction. used the name "hex" to be consistent with the verbose output of "getrawtransaction".
 }
diff --git a/src/crypter.cpp b/src/crypter.cpp
index 88f39bc476..75d84dbf13 100644
--- a/src/crypter.cpp
+++ b/src/crypter.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "crypter.h"
diff --git a/src/crypter.h b/src/crypter.h
index 656658b0fe..cbaf1562f0 100644
--- a/src/crypter.h
+++ b/src/crypter.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/common.h b/src/crypto/common.h
index 67c30023c3..8b04b1f728 100644
--- a/src/crypto/common.h
+++ b/src/crypto/common.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/hmac_sha256.cpp b/src/crypto/hmac_sha256.cpp
index 435896538b..3c791625d0 100644
--- a/src/crypto/hmac_sha256.cpp
+++ b/src/crypto/hmac_sha256.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/hmac_sha256.h b/src/crypto/hmac_sha256.h
index 1fdee5a7cd..1519c1457e 100644
--- a/src/crypto/hmac_sha256.h
+++ b/src/crypto/hmac_sha256.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/hmac_sha512.cpp b/src/crypto/hmac_sha512.cpp
index 940a93277c..5939c6ec47 100644
--- a/src/crypto/hmac_sha512.cpp
+++ b/src/crypto/hmac_sha512.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/hmac_sha512.h b/src/crypto/hmac_sha512.h
index 17d75021aa..17dee61ea8 100644
--- a/src/crypto/hmac_sha512.h
+++ b/src/crypto/hmac_sha512.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/rfc6979_hmac_sha256.cpp b/src/crypto/rfc6979_hmac_sha256.cpp
deleted file mode 100644
index 3f935abfea..0000000000
--- a/src/crypto/rfc6979_hmac_sha256.cpp
+++ /dev/null
@@ -1,47 +0,0 @@
-// Copyright (c) 2014 The Bitcoin developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#include "crypto/rfc6979_hmac_sha256.h"
-
-#include <string.h>
-
-#include <algorithm>
-
-static const unsigned char zero[1] = {0x00};
-static const unsigned char one[1] = {0x01};
-
-RFC6979_HMAC_SHA256::RFC6979_HMAC_SHA256(const unsigned char* key, size_t keylen, const unsigned char* msg, size_t msglen) : retry(false)
-{
-    memset(V, 0x01, sizeof(V));
-    memset(K, 0x00, sizeof(K));
-
-    CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Write(zero, sizeof(zero)).Write(key, keylen).Write(msg, msglen).Finalize(K);
-    CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
-    CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Write(one, sizeof(one)).Write(key, keylen).Write(msg, msglen).Finalize(K);
-    CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
-}
-
-RFC6979_HMAC_SHA256::~RFC6979_HMAC_SHA256()
-{
-    memset(V, 0x01, sizeof(V));
-    memset(K, 0x00, sizeof(K));
-}
-
-void RFC6979_HMAC_SHA256::Generate(unsigned char* output, size_t outputlen)
-{
-    if (retry) {
-        CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Write(zero, sizeof(zero)).Finalize(K);
-        CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
-    }
-
-    while (outputlen > 0) {
-        CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
-        size_t len = std::min(outputlen, sizeof(V));
-        memcpy(output, V, len);
-        output += len;
-        outputlen -= len;
-    }
-
-    retry = true;
-}
diff --git a/src/crypto/rfc6979_hmac_sha256.h b/src/crypto/rfc6979_hmac_sha256.h
deleted file mode 100644
index e67ddcf8fe..0000000000
--- a/src/crypto/rfc6979_hmac_sha256.h
+++ /dev/null
@@ -1,36 +0,0 @@
-// Copyright (c) 2014 The Bitcoin developers
-// Distributed under the MIT software license, see the accompanying
-// file COPYING or http://www.opensource.org/licenses/mit-license.php.
-
-#ifndef BITCOIN_RFC6979_HMAC_SHA256_H
-#define BITCOIN_RFC6979_HMAC_SHA256_H
-
-#include "crypto/hmac_sha256.h"
-
-#include <stdint.h>
-#include <stdlib.h>
-
-/** The RFC 6979 PRNG using HMAC-SHA256. */
-class RFC6979_HMAC_SHA256
-{
-private:
-    unsigned char V[CHMAC_SHA256::OUTPUT_SIZE];
-    unsigned char K[CHMAC_SHA256::OUTPUT_SIZE];
-    bool retry;
-
-public:
-    /**
-     * Construct a new RFC6979 PRNG, using the given key and message.
-     * The message is assumed to be already hashed.
-     */
-    RFC6979_HMAC_SHA256(const unsigned char* key, size_t keylen, const unsigned char* msg, size_t msglen);
-
-    /**
-     * Generate a byte array.
-     */
-    void Generate(unsigned char* output, size_t outputlen);
-
-    ~RFC6979_HMAC_SHA256();
-};
-
-#endif // BITCOIN_RFC6979_HMAC_SHA256_H
diff --git a/src/crypto/ripemd160.cpp b/src/crypto/ripemd160.cpp
index cb4a94a44d..77c9acfc26 100644
--- a/src/crypto/ripemd160.cpp
+++ b/src/crypto/ripemd160.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/ripemd160.h b/src/crypto/ripemd160.h
index f468ec6722..687204fdae 100644
--- a/src/crypto/ripemd160.h
+++ b/src/crypto/ripemd160.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/sha1.cpp b/src/crypto/sha1.cpp
index 7f78fdfc6d..0b895b33a2 100644
--- a/src/crypto/sha1.cpp
+++ b/src/crypto/sha1.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/sha1.h b/src/crypto/sha1.h
index e28f98decd..7b2a21bc6c 100644
--- a/src/crypto/sha1.h
+++ b/src/crypto/sha1.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/sha256.cpp b/src/crypto/sha256.cpp
index 8410e59305..5b9f00a0a2 100644
--- a/src/crypto/sha256.cpp
+++ b/src/crypto/sha256.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/sha256.h b/src/crypto/sha256.h
index bde1a59bed..85cf33739a 100644
--- a/src/crypto/sha256.h
+++ b/src/crypto/sha256.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/sha512.cpp b/src/crypto/sha512.cpp
index 22c3103bed..564127cc31 100644
--- a/src/crypto/sha512.cpp
+++ b/src/crypto/sha512.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/crypto/sha512.h b/src/crypto/sha512.h
index 5566d5db3e..f1f17caf90 100644
--- a/src/crypto/sha512.h
+++ b/src/crypto/sha512.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/db.cpp b/src/db.cpp
index 12650e459f..a7f885135b 100644
--- a/src/db.cpp
+++ b/src/db.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "db.h"
@@ -24,7 +24,6 @@
 #include <openssl/rand.h>
 
 using namespace std;
-using namespace boost;
 
 
 unsigned int nWalletDBUpdated;
@@ -44,7 +43,7 @@ void CDBEnv::EnvShutdown()
     fDbEnvInit = false;
     int ret = dbenv.close(0);
     if (ret != 0)
-        LogPrintf("CDBEnv::EnvShutdown : Error %d shutting down database environment: %s\n", ret, DbEnv::strerror(ret));
+        LogPrintf("CDBEnv::EnvShutdown: Error %d shutting down database environment: %s\n", ret, DbEnv::strerror(ret));
     if (!fMockDb)
         DbEnv(0).remove(path.string().c_str(), 0);
 }
@@ -73,10 +72,10 @@ bool CDBEnv::Open(const boost::filesystem::path& pathIn)
     boost::this_thread::interruption_point();
 
     path = pathIn;
-    filesystem::path pathLogDir = path / "database";
+    boost::filesystem::path pathLogDir = path / "database";
     TryCreateDirectory(pathLogDir);
-    filesystem::path pathErrorFile = path / "db.log";
-    LogPrintf("CDBEnv::Open : LogDir=%s ErrorFile=%s\n", pathLogDir.string(), pathErrorFile.string());
+    boost::filesystem::path pathErrorFile = path / "db.log";
+    LogPrintf("CDBEnv::Open: LogDir=%s ErrorFile=%s\n", pathLogDir.string(), pathErrorFile.string());
 
     unsigned int nEnvFlags = 0;
     if (GetBoolArg("-privdb", true))
@@ -103,7 +102,7 @@ bool CDBEnv::Open(const boost::filesystem::path& pathIn)
                              nEnvFlags,
                          S_IRUSR | S_IWUSR);
     if (ret != 0)
-        return error("CDBEnv::Open : Error %d opening database environment: %s\n", ret, DbEnv::strerror(ret));
+        return error("CDBEnv::Open: Error %d opening database environment: %s\n", ret, DbEnv::strerror(ret));
 
     fDbEnvInit = true;
     fMockDb = false;
@@ -113,7 +112,7 @@ bool CDBEnv::Open(const boost::filesystem::path& pathIn)
 void CDBEnv::MakeMock()
 {
     if (fDbEnvInit)
-        throw runtime_error("CDBEnv::MakeMock : Already initialized");
+        throw runtime_error("CDBEnv::MakeMock: Already initialized");
 
     boost::this_thread::interruption_point();
 
@@ -136,7 +135,7 @@ void CDBEnv::MakeMock()
                              DB_PRIVATE,
                          S_IRUSR | S_IWUSR);
     if (ret > 0)
-        throw runtime_error(strprintf("CDBEnv::MakeMock : Error %d opening database environment.", ret));
+        throw runtime_error(strprintf("CDBEnv::MakeMock: Error %d opening database environment.", ret));
 
     fDbEnvInit = true;
     fMockDb = true;
@@ -173,14 +172,14 @@ bool CDBEnv::Salvage(std::string strFile, bool fAggressive, std::vector<CDBEnv::
     Db db(&dbenv, 0);
     int result = db.verify(strFile.c_str(), NULL, &strDump, flags);
     if (result == DB_VERIFY_BAD) {
-        LogPrintf("CDBEnv::Salvage : Database salvage found errors, all data may not be recoverable.\n");
+        LogPrintf("CDBEnv::Salvage: Database salvage found errors, all data may not be recoverable.\n");
         if (!fAggressive) {
-            LogPrintf("CDBEnv::Salvage : Rerun with aggressive mode to ignore errors and continue.\n");
+            LogPrintf("CDBEnv::Salvage: Rerun with aggressive mode to ignore errors and continue.\n");
             return false;
         }
     }
     if (result != 0 && result != DB_VERIFY_BAD) {
-        LogPrintf("CDBEnv::Salvage : Database salvage failed with result %d.\n", result);
+        LogPrintf("CDBEnv::Salvage: Database salvage failed with result %d.\n", result);
         return false;
     }
 
@@ -218,10 +217,11 @@ void CDBEnv::CheckpointLSN(const std::string& strFile)
 }
 
 
-CDB::CDB(const std::string& strFilename, const char* pszMode) : pdb(NULL), activeTxn(NULL)
+CDB::CDB(const std::string& strFilename, const char* pszMode, bool fFlushOnCloseIn) : pdb(NULL), activeTxn(NULL)
 {
     int ret;
     fReadOnly = (!strchr(pszMode, '+') && !strchr(pszMode, 'w'));
+    fFlushOnClose = fFlushOnCloseIn;
     if (strFilename.empty())
         return;
 
@@ -233,7 +233,7 @@ CDB::CDB(const std::string& strFilename, const char* pszMode) : pdb(NULL), activ
     {
         LOCK(bitdb.cs_db);
         if (!bitdb.Open(GetDataDir()))
-            throw runtime_error("CDB : Failed to open database environment.");
+            throw runtime_error("CDB: Failed to open database environment.");
 
         strFile = strFilename;
         ++bitdb.mapFileUseCount[strFile];
@@ -246,7 +246,7 @@ CDB::CDB(const std::string& strFilename, const char* pszMode) : pdb(NULL), activ
                 DbMpoolFile* mpf = pdb->get_mpf();
                 ret = mpf->set_flags(DB_MPOOL_NOFILE, 1);
                 if (ret != 0)
-                    throw runtime_error(strprintf("CDB : Failed to configure for no temp file backing for database %s", strFile));
+                    throw runtime_error(strprintf("CDB: Failed to configure for no temp file backing for database %s", strFile));
             }
 
             ret = pdb->open(NULL,                               // Txn pointer
@@ -261,7 +261,7 @@ CDB::CDB(const std::string& strFilename, const char* pszMode) : pdb(NULL), activ
                 pdb = NULL;
                 --bitdb.mapFileUseCount[strFile];
                 strFile = "";
-                throw runtime_error(strprintf("CDB : Error %d, can't open database %s", ret, strFile));
+                throw runtime_error(strprintf("CDB: Error %d, can't open database %s", ret, strFile));
             }
 
             if (fCreate && !Exists(string("version"))) {
@@ -298,7 +298,8 @@ void CDB::Close()
     activeTxn = NULL;
     pdb = NULL;
 
-    Flush();
+    if (fFlushOnClose)
+        Flush();
 
     {
         LOCK(bitdb.cs_db);
@@ -341,7 +342,7 @@ bool CDB::Rewrite(const string& strFile, const char* pszSkip)
                 bitdb.mapFileUseCount.erase(strFile);
 
                 bool fSuccess = true;
-                LogPrintf("CDB::Rewrite : Rewriting %s...\n", strFile);
+                LogPrintf("CDB::Rewrite: Rewriting %s...\n", strFile);
                 string strFileRes = strFile + ".rewrite";
                 { // surround usage of db with extra {}
                     CDB db(strFile.c_str(), "r");
@@ -354,7 +355,7 @@ bool CDB::Rewrite(const string& strFile, const char* pszSkip)
                                             DB_CREATE,          // Flags
                                             0);
                     if (ret > 0) {
-                        LogPrintf("CDB::Rewrite : Can't create database file %s\n", strFileRes);
+                        LogPrintf("CDB::Rewrite: Can't create database file %s\n", strFileRes);
                         fSuccess = false;
                     }
 
@@ -403,7 +404,7 @@ bool CDB::Rewrite(const string& strFile, const char* pszSkip)
                         fSuccess = false;
                 }
                 if (!fSuccess)
-                    LogPrintf("CDB::Rewrite : Failed to rewrite database file %s\n", strFileRes);
+                    LogPrintf("CDB::Rewrite: Failed to rewrite database file %s\n", strFileRes);
                 return fSuccess;
             }
         }
@@ -417,7 +418,7 @@ void CDBEnv::Flush(bool fShutdown)
 {
     int64_t nStart = GetTimeMillis();
     // Flush log data to the actual data file on all files that are not in use
-    LogPrint("db", "CDBEnv::Flush : Flush(%s)%s\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started");
+    LogPrint("db", "CDBEnv::Flush: Flush(%s)%s\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started");
     if (!fDbEnvInit)
         return;
     {
@@ -426,21 +427,21 @@ void CDBEnv::Flush(bool fShutdown)
         while (mi != mapFileUseCount.end()) {
             string strFile = (*mi).first;
             int nRefCount = (*mi).second;
-            LogPrint("db", "CDBEnv::Flush : Flushing %s (refcount = %d)...\n", strFile, nRefCount);
+            LogPrint("db", "CDBEnv::Flush: Flushing %s (refcount = %d)...\n", strFile, nRefCount);
             if (nRefCount == 0) {
                 // Move log data to the dat file
                 CloseDb(strFile);
-                LogPrint("db", "CDBEnv::Flush : %s checkpoint\n", strFile);
+                LogPrint("db", "CDBEnv::Flush: %s checkpoint\n", strFile);
                 dbenv.txn_checkpoint(0, 0, 0);
-                LogPrint("db", "CDBEnv::Flush : %s detach\n", strFile);
+                LogPrint("db", "CDBEnv::Flush: %s detach\n", strFile);
                 if (!fMockDb)
                     dbenv.lsn_reset(strFile.c_str(), 0);
-                LogPrint("db", "CDBEnv::Flush : %s closed\n", strFile);
+                LogPrint("db", "CDBEnv::Flush: %s closed\n", strFile);
                 mapFileUseCount.erase(mi++);
             } else
                 mi++;
         }
-        LogPrint("db", "CDBEnv::Flush : Flush(%s)%s took %15dms\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started", GetTimeMillis() - nStart);
+        LogPrint("db", "CDBEnv::Flush: Flush(%s)%s took %15dms\n", fShutdown ? "true" : "false", fDbEnvInit ? "" : " database not started", GetTimeMillis() - nStart);
         if (fShutdown) {
             char** listp;
             if (mapFileUseCount.empty()) {
diff --git a/src/db.h b/src/db.h
index 1c572d8970..d208907c89 100644
--- a/src/db.h
+++ b/src/db.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -23,8 +23,6 @@
 class CDiskBlockIndex;
 class COutPoint;
 
-struct CBlockLocator;
-
 extern unsigned int nWalletDBUpdated;
 
 void ThreadFlushWalletDB(const std::string& strWalletFile);
@@ -99,8 +97,9 @@ protected:
     std::string strFile;
     DbTxn* activeTxn;
     bool fReadOnly;
+    bool fFlushOnClose;
 
-    explicit CDB(const std::string& strFilename, const char* pszMode = "r+");
+    explicit CDB(const std::string& strFilename, const char* pszMode = "r+", bool fFlushOnCloseIn=true);
     ~CDB() { Close(); }
 
 public:
diff --git a/src/eccryptoverify.cpp b/src/eccryptoverify.cpp
index 435154d608..e894e1122c 100644
--- a/src/eccryptoverify.cpp
+++ b/src/eccryptoverify.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/eccryptoverify.h b/src/eccryptoverify.h
index da7e80c7c3..c67c1e44fc 100644
--- a/src/eccryptoverify.h
+++ b/src/eccryptoverify.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/ecwrapper.cpp b/src/ecwrapper.cpp
index 5ce7e61294..5e3aec25ba 100644
--- a/src/ecwrapper.cpp
+++ b/src/ecwrapper.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -117,10 +117,34 @@ bool CECKey::SetPubKey(const unsigned char* pubkey, size_t size) {
 }
 
 bool CECKey::Verify(const uint256 &hash, const std::vector<unsigned char>& vchSig) {
-    // -1 = error, 0 = bad sig, 1 = good
-    if (ECDSA_verify(0, (unsigned char*)&hash, sizeof(hash), &vchSig[0], vchSig.size(), pkey) != 1)
+    if (vchSig.empty())
         return false;
-    return true;
+
+    // New versions of OpenSSL will reject non-canonical DER signatures. de/re-serialize first.
+    unsigned char *norm_der = NULL;
+    ECDSA_SIG *norm_sig = ECDSA_SIG_new();
+    const unsigned char* sigptr = &vchSig[0];
+    assert(norm_sig);
+    if (d2i_ECDSA_SIG(&norm_sig, &sigptr, vchSig.size()) == NULL)
+    {
+        /* As of OpenSSL 1.0.0p d2i_ECDSA_SIG frees and nulls the pointer on
+         * error. But OpenSSL's own use of this function redundantly frees the
+         * result. As ECDSA_SIG_free(NULL) is a no-op, and in the absence of a
+         * clear contract for the function behaving the same way is more
+         * conservative.
+         */
+        ECDSA_SIG_free(norm_sig);
+        return false;
+    }
+    int derlen = i2d_ECDSA_SIG(norm_sig, &norm_der);
+    ECDSA_SIG_free(norm_sig);
+    if (derlen <= 0)
+        return false;
+
+    // -1 = error, 0 = bad sig, 1 = good
+    bool ret = ECDSA_verify(0, (unsigned char*)&hash, sizeof(hash), norm_der, derlen, pkey) == 1;
+    OPENSSL_free(norm_der);
+    return ret;
 }
 
 bool CECKey::Recover(const uint256 &hash, const unsigned char *p64, int rec)
diff --git a/src/ecwrapper.h b/src/ecwrapper.h
index 4efde51650..efb6cd18a7 100644
--- a/src/ecwrapper.h
+++ b/src/ecwrapper.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/hash.cpp b/src/hash.cpp
index aaca00ea2d..a7eb5a2a0b 100644
--- a/src/hash.cpp
+++ b/src/hash.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2013-2014 The Bitcoin developers
+// Copyright (c) 2013-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/hash.h b/src/hash.h
index 5a34cdc5c3..e56b784a61 100644
--- a/src/hash.h
+++ b/src/hash.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
+// Copyright (c) 2009-2013 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/init.cpp b/src/init.cpp
index 11329c16aa..c8f32d8bfd 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -43,7 +43,6 @@
 #include <boost/thread.hpp>
 #include <openssl/crypto.h>
 
-using namespace boost;
 using namespace std;
 
 #ifdef ENABLE_WALLET
@@ -112,7 +111,28 @@ bool ShutdownRequested()
     return fRequestShutdown;
 }
 
+class CCoinsViewErrorCatcher : public CCoinsViewBacked
+{
+public:
+    CCoinsViewErrorCatcher(CCoinsView* view) : CCoinsViewBacked(view) {}
+    bool GetCoins(const uint256 &txid, CCoins &coins) const {
+        try {
+            return CCoinsViewBacked::GetCoins(txid, coins);
+        } catch(const std::runtime_error& e) {
+            uiInterface.ThreadSafeMessageBox(_("Error reading from database, shutting down."), "", CClientUIInterface::MSG_ERROR);
+            LogPrintf("Error reading from database: %s\n", e.what());
+            // Starting the shutdown sequence and returning false to the caller would be
+            // interpreted as 'entry not found' (as opposed to unable to read data), and
+            // could lead to invalid interpration. Just exit immediately, as we can't
+            // continue anyway, and all writes should be atomic.
+            abort();
+        }
+    }
+    // Writes do not need similar protection, as failure to write is handled by the caller.
+};
+
 static CCoinsViewDB *pcoinsdbview = NULL;
+static CCoinsViewErrorCatcher *pcoinscatcher = NULL;
 
 void Shutdown()
 {
@@ -155,6 +175,8 @@ void Shutdown()
         }
         delete pcoinsTip;
         pcoinsTip = NULL;
+        delete pcoinscatcher;
+        pcoinscatcher = NULL;
         delete pcoinsdbview;
         pcoinsdbview = NULL;
         delete pblocktree;
@@ -212,6 +234,26 @@ bool static Bind(const CService &addr, unsigned int flags) {
     return true;
 }
 
+void OnRPCStopped()
+{
+    cvBlockChange.notify_all();
+    LogPrint("rpc", "RPC stopped.\n");
+}
+
+void OnRPCPreCommand(const CRPCCommand& cmd)
+{
+#ifdef ENABLE_WALLET
+    if (cmd.reqWallet && !pwalletMain)
+        throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found (disabled)");
+#endif
+
+    // Observe safe mode
+    string strWarning = GetWarnings("rpc");
+    if (strWarning != "" && !GetBoolArg("-disablesafemode", false) &&
+        !cmd.okSafeMode)
+        throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning);
+}
+
 std::string HelpMessage(HelpMessageMode mode)
 {
     // When adding new options to the categories, please keep and ensure alphabetical ordering.
@@ -231,7 +273,6 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += "  -datadir=<dir>         " + _("Specify data directory") + "\n";
     strUsage += "  -dbcache=<n>           " + strprintf(_("Set database cache size in megabytes (%d to %d, default: %d)"), nMinDbCache, nMaxDbCache, nDefaultDbCache) + "\n";
     strUsage += "  -loadblock=<file>      " + _("Imports blocks from external blk000??.dat file") + " " + _("on startup") + "\n";
-    strUsage += "  -maxorphanblocks=<n>   " + strprintf(_("Keep at most <n> unconnectable blocks in memory (default: %u)"), DEFAULT_MAX_ORPHAN_BLOCKS) + "\n";
     strUsage += "  -maxorphantx=<n>       " + strprintf(_("Keep at most <n> unconnectable transactions in memory (default: %u)"), DEFAULT_MAX_ORPHAN_TRANSACTIONS) + "\n";
     strUsage += "  -par=<n>               " + strprintf(_("Set the number of script verification threads (%u to %d, 0 = auto, <0 = leave that many cores free, default: %d)"), -(int)boost::thread::hardware_concurrency(), MAX_SCRIPTCHECK_THREADS, DEFAULT_SCRIPTCHECK_THREADS) + "\n";
 #ifndef WIN32
@@ -249,7 +290,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += "  -bantime=<n>           " + strprintf(_("Number of seconds to keep misbehaving peers from reconnecting (default: %u)"), 86400) + "\n";
     strUsage += "  -bind=<addr>           " + _("Bind to given address and always listen on it. Use [host]:port notation for IPv6") + "\n";
     strUsage += "  -connect=<ip>          " + _("Connect only to the specified node(s)") + "\n";
-    strUsage += "  -discover              " + _("Discover own IP address (default: 1 when listening and no -externalip)") + "\n";
+    strUsage += "  -discover              " + _("Discover own IP addresses (default: 1 when listening and no -externalip or -proxy)") + "\n";
     strUsage += "  -dns                   " + _("Allow DNS lookups for -addnode, -seednode and -connect") + " " + _("(default: 1)") + "\n";
     strUsage += "  -dnsseed               " + _("Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)") + "\n";
     strUsage += "  -externalip=<ip>       " + _("Specify your own public address") + "\n";
@@ -287,7 +328,8 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += "  -salvagewallet         " + _("Attempt to recover private keys from a corrupt wallet.dat") + " " + _("on startup") + "\n";
     strUsage += "  -sendfreetransactions  " + strprintf(_("Send transactions as zero-fee transactions if possible (default: %u)"), 0) + "\n";
     strUsage += "  -spendzeroconfchange   " + strprintf(_("Spend unconfirmed change when sending transactions (default: %u)"), 1) + "\n";
-    strUsage += "  -txconfirmtarget=<n>   " + strprintf(_("If paytxfee is not set, include enough fee so transactions are confirmed on average within n blocks (default: %u)"), 1) + "\n";
+    strUsage += "  -txconfirmtarget=<n>   " + strprintf(_("If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: %u)"), 1) + "\n";
+    strUsage += "  -maxtxfee=<amt>        " + strprintf(_("Maximum total fees to use in a single wallet transaction, setting too low may abort large transactions (default: %s)"), FormatMoney(maxTxFee)) + "\n";
     strUsage += "  -upgradewallet         " + _("Upgrade wallet to latest format") + " " + _("on startup") + "\n";
     strUsage += "  -wallet=<file>         " + _("Specify wallet file (within data directory)") + " " + strprintf(_("(default: %s)"), "wallet.dat") + "\n";
     strUsage += "  -walletnotify=<cmd>    " + _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)") + "\n";
@@ -324,6 +366,7 @@ std::string HelpMessage(HelpMessageMode mode)
     if (GetBoolArg("-help-debug", false))
     {
         strUsage += "  -limitfreerelay=<n>    " + strprintf(_("Continuously rate-limit free transactions to <n>*1000 bytes per minute (default:%u)"), 15) + "\n";
+        strUsage += "  -relaypriority         " + strprintf(_("Require high priority for relaying free or low-fee transactions (default:%u)"), 1) + "\n";
         strUsage += "  -maxsigcachesize=<n>   " + strprintf(_("Limit size of signature cache to <n> entries (default: %u)"), 50000) + "\n";
     }
     strUsage += "  -minrelaytxfee=<amt>   " + strprintf(_("Fees (in BTC/Kb) smaller than this are considered zero fee for relaying (default: %s)"), FormatMoney(::minRelayTxFee.GetFeePerK())) + "\n";
@@ -357,6 +400,7 @@ std::string HelpMessage(HelpMessageMode mode)
     strUsage += "  -rpcport=<port>        " + strprintf(_("Listen for JSON-RPC connections on <port> (default: %u or testnet: %u)"), 8332, 18332) + "\n";
     strUsage += "  -rpcallowip=<ip>       " + _("Allow JSON-RPC connections from specified source. Valid for <ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified multiple times") + "\n";
     strUsage += "  -rpcthreads=<n>        " + strprintf(_("Set the number of threads to service RPC calls (default: %d)"), 4) + "\n";
+    strUsage += "  -rpckeepalive          " + strprintf(_("RPC support for HTTP persistent connections (default: %d)"), 1) + "\n";
 
     strUsage += "\n" + _("RPC SSL options: (see the Bitcoin Wiki for SSL setup instructions)") + "\n";
     strUsage += "  -rpcssl                                  " + _("Use OpenSSL (https) for JSON-RPC connections") + "\n";
@@ -427,12 +471,12 @@ void ThreadImport(std::vector<boost::filesystem::path> vImportFiles)
     }
 
     // hardcoded $DATADIR/bootstrap.dat
-    filesystem::path pathBootstrap = GetDataDir() / "bootstrap.dat";
-    if (filesystem::exists(pathBootstrap)) {
+    boost::filesystem::path pathBootstrap = GetDataDir() / "bootstrap.dat";
+    if (boost::filesystem::exists(pathBootstrap)) {
         FILE *file = fopen(pathBootstrap.string().c_str(), "rb");
         if (file) {
             CImportingNow imp;
-            filesystem::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old";
+            boost::filesystem::path pathBootstrapOld = GetDataDir() / "bootstrap.dat.old";
             LogPrintf("Importing bootstrap.dat...\n");
             LoadExternalBlockFile(file);
             RenameOver(pathBootstrap, pathBootstrapOld);
@@ -545,59 +589,64 @@ bool AppInit2(boost::thread_group& threadGroup)
 #endif
 
     // ********************************************************* Step 2: parameter interactions
+
     // Set this early so that parameter interactions go to console
     fPrintToConsole = GetBoolArg("-printtoconsole", false);
     fLogTimestamps = GetBoolArg("-logtimestamps", true);
     fLogIPs = GetBoolArg("-logips", false);
 
-    if (mapArgs.count("-bind") || mapArgs.count("-whitebind")) {
-        // when specifying an explicit binding address, you want to listen on it
-        // even when -connect or -proxy is specified
+    // when specifying an explicit binding address, you want to listen on it
+    // even when -connect or -proxy is specified
+    if (mapArgs.count("-bind")) {
         if (SoftSetBoolArg("-listen", true))
-            LogPrintf("AppInit2 : parameter interaction: -bind or -whitebind set -> setting -listen=1\n");
+            LogPrintf("%s: parameter interaction: -bind set -> setting -listen=1\n", __func__);
+    }
+    if (mapArgs.count("-whitebind")) {
+        if (SoftSetBoolArg("-listen", true))
+            LogPrintf("%s: parameter interaction: -whitebind set -> setting -listen=1\n", __func__);
     }
 
     if (mapArgs.count("-connect") && mapMultiArgs["-connect"].size() > 0) {
         // when only connecting to trusted nodes, do not seed via DNS, or listen by default
         if (SoftSetBoolArg("-dnsseed", false))
-            LogPrintf("AppInit2 : parameter interaction: -connect set -> setting -dnsseed=0\n");
+            LogPrintf("%s: parameter interaction: -connect set -> setting -dnsseed=0\n", __func__);
         if (SoftSetBoolArg("-listen", false))
-            LogPrintf("AppInit2 : parameter interaction: -connect set -> setting -listen=0\n");
+            LogPrintf("%s: parameter interaction: -connect set -> setting -listen=0\n", __func__);
     }
 
     if (mapArgs.count("-proxy")) {
         // to protect privacy, do not listen by default if a default proxy server is specified
         if (SoftSetBoolArg("-listen", false))
-            LogPrintf("AppInit2 : parameter interaction: -proxy set -> setting -listen=0\n");
+            LogPrintf("%s: parameter interaction: -proxy set -> setting -listen=0\n", __func__);
         // to protect privacy, do not discover addresses by default
         if (SoftSetBoolArg("-discover", false))
-            LogPrintf("AppInit2 : parameter interaction: -proxy set -> setting -discover=0\n");
+            LogPrintf("%s: parameter interaction: -proxy set -> setting -discover=0\n", __func__);
     }
 
-    if (!GetBoolArg("-listen", true)) {
+    if (!GetBoolArg("-listen", DEFAULT_LISTEN)) {
         // do not map ports or try to retrieve public IP when not listening (pointless)
         if (SoftSetBoolArg("-upnp", false))
-            LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -upnp=0\n");
+            LogPrintf("%s: parameter interaction: -listen=0 -> setting -upnp=0\n", __func__);
         if (SoftSetBoolArg("-discover", false))
-            LogPrintf("AppInit2 : parameter interaction: -listen=0 -> setting -discover=0\n");
+            LogPrintf("%s: parameter interaction: -listen=0 -> setting -discover=0\n", __func__);
     }
 
     if (mapArgs.count("-externalip")) {
         // if an explicit public IP is specified, do not try to find others
         if (SoftSetBoolArg("-discover", false))
-            LogPrintf("AppInit2 : parameter interaction: -externalip set -> setting -discover=0\n");
+            LogPrintf("%s: parameter interaction: -externalip set -> setting -discover=0\n", __func__);
     }
 
     if (GetBoolArg("-salvagewallet", false)) {
         // Rewrite just private keys: rescan to find transactions
         if (SoftSetBoolArg("-rescan", true))
-            LogPrintf("AppInit2 : parameter interaction: -salvagewallet=1 -> setting -rescan=1\n");
+            LogPrintf("%s: parameter interaction: -salvagewallet=1 -> setting -rescan=1\n", __func__);
     }
 
     // -zapwallettx implies a rescan
     if (GetBoolArg("-zapwallettxes", false)) {
         if (SoftSetBoolArg("-rescan", true))
-            LogPrintf("AppInit2 : parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n");
+            LogPrintf("%s: parameter interaction: -zapwallettxes=<mode> -> setting -rescan=1\n", __func__);
     }
 
     // Make sure enough file descriptors are available
@@ -697,6 +746,20 @@ bool AppInit2(boost::thread_group& threadGroup)
                                        mapArgs["-paytxfee"], ::minRelayTxFee.ToString()));
         }
     }
+    if (mapArgs.count("-maxtxfee"))
+    {
+        CAmount nMaxFee = 0;
+        if (!ParseMoney(mapArgs["-maxtxfee"], nMaxFee))
+            return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s'"), mapArgs["-maptxfee"]));
+        if (nMaxFee > nHighTransactionMaxFeeWarning)
+            InitWarning(_("Warning: -maxtxfee is set very high! Fees this large could be paid on a single transaction."));
+        maxTxFee = nMaxFee;
+        if (CFeeRate(maxTxFee, 1000) < ::minRelayTxFee)
+        {
+            return InitError(strprintf(_("Invalid amount for -maxtxfee=<amount>: '%s' (must be at least the minrelay fee of %s to prevent stuck transactions)"),
+                                       mapArgs["-maxtxfee"], ::minRelayTxFee.ToString()));
+        }
+    }
     nTxConfirmTarget = GetArg("-txconfirmtarget", 1);
     bSpendZeroConfChange = GetArg("-spendzeroconfchange", true);
     fSendFreeTransactions = GetArg("-sendfreetransactions", false);
@@ -759,6 +822,8 @@ bool AppInit2(boost::thread_group& threadGroup)
     if (fServer)
     {
         uiInterface.InitMessage.connect(SetRPCWarmupStatus);
+        RPCServer::OnStopped(&OnRPCStopped);
+        RPCServer::OnPreCommand(&OnRPCPreCommand);
         StartRPCThreads();
     }
 
@@ -778,7 +843,7 @@ bool AppInit2(boost::thread_group& threadGroup)
             try {
                 boost::filesystem::rename(pathDatabase, pathDatabaseBak);
                 LogPrintf("Moved old %s to %s. Retrying.\n", pathDatabase.string(), pathDatabaseBak.string());
-            } catch(boost::filesystem::filesystem_error &error) {
+            } catch (const boost::filesystem::filesystem_error&) {
                  // failure is ok (well, not really, but it's not worse than what we started with)
             }
 
@@ -797,7 +862,7 @@ bool AppInit2(boost::thread_group& threadGroup)
                 return false;
         }
 
-        if (filesystem::exists(GetDataDir() / strWalletFile))
+        if (boost::filesystem::exists(GetDataDir() / strWalletFile))
         {
             CDBEnv::VerifyResult r = bitdb.Verify(strWalletFile, CWalletDB::Recover);
             if (r == CDBEnv::RECOVER_OK)
@@ -918,23 +983,23 @@ bool AppInit2(boost::thread_group& threadGroup)
     fReindex = GetBoolArg("-reindex", false);
 
     // Upgrading to 0.8; hard-link the old blknnnn.dat files into /blocks/
-    filesystem::path blocksDir = GetDataDir() / "blocks";
-    if (!filesystem::exists(blocksDir))
+    boost::filesystem::path blocksDir = GetDataDir() / "blocks";
+    if (!boost::filesystem::exists(blocksDir))
     {
-        filesystem::create_directories(blocksDir);
+        boost::filesystem::create_directories(blocksDir);
         bool linked = false;
         for (unsigned int i = 1; i < 10000; i++) {
-            filesystem::path source = GetDataDir() / strprintf("blk%04u.dat", i);
-            if (!filesystem::exists(source)) break;
-            filesystem::path dest = blocksDir / strprintf("blk%05u.dat", i-1);
+            boost::filesystem::path source = GetDataDir() / strprintf("blk%04u.dat", i);
+            if (!boost::filesystem::exists(source)) break;
+            boost::filesystem::path dest = blocksDir / strprintf("blk%05u.dat", i-1);
             try {
-                filesystem::create_hard_link(source, dest);
+                boost::filesystem::create_hard_link(source, dest);
                 LogPrintf("Hardlinked %s -> %s\n", source.string(), dest.string());
                 linked = true;
-            } catch (filesystem::filesystem_error & e) {
+            } catch (const boost::filesystem::filesystem_error& e) {
                 // Note: hardlink creation failing is not a disaster, it just means
                 // blocks will get re-downloaded from peers.
-                LogPrintf("Error hardlinking blk%04u.dat : %s\n", i, e.what());
+                LogPrintf("Error hardlinking blk%04u.dat: %s\n", i, e.what());
                 break;
             }
         }
@@ -971,11 +1036,13 @@ bool AppInit2(boost::thread_group& threadGroup)
                 UnloadBlockIndex();
                 delete pcoinsTip;
                 delete pcoinsdbview;
+                delete pcoinscatcher;
                 delete pblocktree;
 
                 pblocktree = new CBlockTreeDB(nBlockTreeDBCache, false, fReindex);
                 pcoinsdbview = new CCoinsViewDB(nCoinDBCache, false, fReindex);
-                pcoinsTip = new CCoinsViewCache(pcoinsdbview);
+                pcoinscatcher = new CCoinsViewErrorCatcher(pcoinsdbview);
+                pcoinsTip = new CCoinsViewCache(pcoinscatcher);
 
                 if (fReindex)
                     pblocktree->WriteReindexing(true);
@@ -1008,7 +1075,7 @@ bool AppInit2(boost::thread_group& threadGroup)
                     strLoadError = _("Corrupted block database detected");
                     break;
                 }
-            } catch(std::exception &e) {
+            } catch (const std::exception& e) {
                 if (fDebug) LogPrintf("%s\n", e.what());
                 strLoadError = _("Error opening block database");
                 break;
@@ -1166,6 +1233,8 @@ bool AppInit2(boost::thread_group& threadGroup)
             // Restore wallet transaction metadata after -zapwallettxes=1
             if (GetBoolArg("-zapwallettxes", false) && GetArg("-zapwallettxes", "1") != "2")
             {
+                CWalletDB walletdb(strWalletFile);
+
                 BOOST_FOREACH(const CWalletTx& wtxOld, vWtx)
                 {
                     uint256 hash = wtxOld.GetHash();
@@ -1181,7 +1250,7 @@ bool AppInit2(boost::thread_group& threadGroup)
                         copyTo->fFromMe = copyFrom->fFromMe;
                         copyTo->strFromAccount = copyFrom->strFromAccount;
                         copyTo->nOrderPos = copyFrom->nOrderPos;
-                        copyTo->WriteToDisk();
+                        copyTo->WriteToDisk(&walletdb);
                     }
                 }
             }
@@ -1207,6 +1276,11 @@ bool AppInit2(boost::thread_group& threadGroup)
             vImportFiles.push_back(strFile);
     }
     threadGroup.create_thread(boost::bind(&ThreadImport, vImportFiles));
+    if (chainActive.Tip() == NULL) {
+        LogPrintf("Waiting for genesis block to be imported...\n");
+        while (!fRequestShutdown && chainActive.Tip() == NULL)
+            MilliSleep(10);
+    }
 
     // ********************************************************* Step 10: start node
 
diff --git a/src/init.h b/src/init.h
index f2f7ac6747..d451f65be9 100644
--- a/src/init.h
+++ b/src/init.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/key.cpp b/src/key.cpp
index acf62360a4..d8319db1a3 100644
--- a/src/key.cpp
+++ b/src/key.cpp
@@ -1,11 +1,11 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "key.h"
 
+#include "arith_uint256.h"
 #include "crypto/hmac_sha512.h"
-#include "crypto/rfc6979_hmac_sha256.h"
 #include "eccryptoverify.h"
 #include "pubkey.h"
 #include "random.h"
@@ -34,6 +34,7 @@ bool CKey::Check(const unsigned char *vch) {
 }
 
 void CKey::MakeNewKey(bool fCompressedIn) {
+    RandAddSeedPerfmon();
     do {
         GetRandBytes(vch, sizeof(vch));
     } while (!Check(vch));
@@ -72,23 +73,28 @@ CPubKey CKey::GetPubKey() const {
     return result;
 }
 
+extern "C"
+{
+static int secp256k1_nonce_function_test_case(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, unsigned int attempt, const void *data)
+{
+    const uint32_t *test_case = static_cast<const uint32_t*>(data);
+    uint256 nonce;
+    secp256k1_nonce_function_rfc6979(nonce.begin(), msg32, key32, attempt, NULL);
+    nonce = ArithToUint256(UintToArith256(nonce) + *test_case);
+    memcpy(nonce32, nonce.begin(), 32);
+    return 1;
+}
+}
+
 bool CKey::Sign(const uint256 &hash, std::vector<unsigned char>& vchSig, uint32_t test_case) const {
     if (!fValid)
         return false;
     vchSig.resize(72);
-    RFC6979_HMAC_SHA256 prng(begin(), 32, (unsigned char*)&hash, 32);
-    do {
-        uint256 nonce;
-        prng.Generate((unsigned char*)&nonce, 32);
-        nonce += test_case;
-        int nSigLen = 72;
-        int ret = secp256k1_ecdsa_sign((const unsigned char*)&hash, 32, (unsigned char*)&vchSig[0], &nSigLen, begin(), (unsigned char*)&nonce);
-        nonce = 0;
-        if (ret) {
-            vchSig.resize(nSigLen);
-            return true;
-        }
-    } while(true);
+    int nSigLen = 72;
+    int ret = secp256k1_ecdsa_sign(hash.begin(), (unsigned char*)&vchSig[0], &nSigLen, begin(), test_case == 0 ? secp256k1_nonce_function_rfc6979 : secp256k1_nonce_function_test_case, test_case == 0 ? NULL : &test_case);
+    assert(ret);
+    vchSig.resize(nSigLen);
+    return true;
 }
 
 bool CKey::VerifyPubKey(const CPubKey& pubkey) const {
@@ -99,7 +105,7 @@ bool CKey::VerifyPubKey(const CPubKey& pubkey) const {
     std::string str = "Bitcoin key verification\n";
     GetRandBytes(rnd, sizeof(rnd));
     uint256 hash;
-    CHash256().Write((unsigned char*)str.data(), str.size()).Write(rnd, sizeof(rnd)).Finalize((unsigned char*)&hash);
+    CHash256().Write((unsigned char*)str.data(), str.size()).Write(rnd, sizeof(rnd)).Finalize(hash.begin());
     std::vector<unsigned char> vchSig;
     Sign(hash, vchSig);
     return pubkey.Verify(hash, vchSig);
@@ -110,15 +116,8 @@ bool CKey::SignCompact(const uint256 &hash, std::vector<unsigned char>& vchSig)
         return false;
     vchSig.resize(65);
     int rec = -1;
-    RFC6979_HMAC_SHA256 prng(begin(), 32, (unsigned char*)&hash, 32);
-    do {
-        uint256 nonce;
-        prng.Generate((unsigned char*)&nonce, 32);
-        int ret = secp256k1_ecdsa_sign_compact((const unsigned char*)&hash, 32, &vchSig[1], begin(), (unsigned char*)&nonce, &rec);
-        nonce = 0;
-        if (ret)
-            break;
-    } while(true);
+    int ret = secp256k1_ecdsa_sign_compact(hash.begin(), &vchSig[1], begin(), secp256k1_nonce_function_rfc6979, NULL, &rec);
+    assert(ret);
     assert(rec != -1);
     vchSig[0] = 27 + rec + (fCompressed ? 4 : 0);
     return true;
diff --git a/src/key.h b/src/key.h
index d85abe095c..85cc1e55db 100644
--- a/src/key.h
+++ b/src/key.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/keystore.cpp b/src/keystore.cpp
index 879f099720..7531737e04 100644
--- a/src/keystore.cpp
+++ b/src/keystore.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -7,8 +7,6 @@
 
 #include "crypter.h"
 #include "key.h"
-#include "script/script.h"
-#include "script/standard.h"
 #include "util.h"
 
 #include <boost/foreach.hpp>
@@ -36,7 +34,7 @@ bool CBasicKeyStore::AddKeyPubKey(const CKey& key, const CPubKey &pubkey)
 bool CBasicKeyStore::AddCScript(const CScript& redeemScript)
 {
     if (redeemScript.size() > MAX_SCRIPT_ELEMENT_SIZE)
-        return error("CBasicKeyStore::AddCScript() : redeemScripts > %i bytes are invalid", MAX_SCRIPT_ELEMENT_SIZE);
+        return error("CBasicKeyStore::AddCScript(): redeemScripts > %i bytes are invalid", MAX_SCRIPT_ELEMENT_SIZE);
 
     LOCK(cs_KeyStore);
     mapScripts[CScriptID(redeemScript)] = redeemScript;
diff --git a/src/keystore.h b/src/keystore.h
index 60502e9a29..4a4b6d20af 100644
--- a/src/keystore.h
+++ b/src/keystore.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -8,14 +8,13 @@
 
 #include "key.h"
 #include "pubkey.h"
+#include "script/script.h"
+#include "script/standard.h"
 #include "sync.h"
 
 #include <boost/signals2/signal.hpp>
 #include <boost/variant.hpp>
 
-class CScript;
-class CScriptID;
-
 /** A virtual base class for key stores */
 class CKeyStore
 {
diff --git a/src/leveldbwrapper.cpp b/src/leveldbwrapper.cpp
index 70980fede5..c353dfa6d9 100644
--- a/src/leveldbwrapper.cpp
+++ b/src/leveldbwrapper.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/leveldbwrapper.h b/src/leveldbwrapper.h
index 42479206c8..c65e842704 100644
--- a/src/leveldbwrapper.h
+++ b/src/leveldbwrapper.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/limitedmap.h b/src/limitedmap.h
index 03727d7c42..e8ea549653 100644
--- a/src/limitedmap.h
+++ b/src/limitedmap.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/main.cpp b/src/main.cpp
index 784e2569d9..27c427f7cd 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,21 +1,24 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "main.h"
 
+#include "arith_uint256.h"
 #include "addrman.h"
 #include "alert.h"
 #include "chainparams.h"
 #include "checkpoints.h"
 #include "checkqueue.h"
 #include "init.h"
+#include "merkleblock.h"
 #include "net.h"
 #include "pow.h"
 #include "txdb.h"
 #include "txmempool.h"
 #include "ui_interface.h"
+#include "undo.h"
 #include "util.h"
 #include "utilmoneystr.h"
 
@@ -26,7 +29,6 @@
 #include <boost/filesystem/fstream.hpp>
 #include <boost/thread.hpp>
 
-using namespace boost;
 using namespace std;
 
 #if defined(NDEBUG)
@@ -66,6 +68,13 @@ map<uint256, COrphanTx> mapOrphanTransactions;
 map<uint256, set<uint256> > mapOrphanTransactionsByPrev;
 void EraseOrphansFor(NodeId peer);
 
+/**
+ * Returns true if there are nRequired or more blocks of minVersion or above
+ * in the last Params().ToCheckBlockUpgradeMajority() blocks, starting at pstart 
+ * and going backwards.
+ */
+static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned int nRequired);
+
 /** Constant stuff for coinbase transactions we create: */
 CScript COINBASE_FLAGS;
 
@@ -130,9 +139,14 @@ namespace {
         uint256 hash;
         CBlockIndex *pindex;  //! Optional.
         int64_t nTime;  //! Time of "getdata" request in microseconds.
+        int nValidatedQueuedBefore;  //! Number of blocks queued with validated headers (globally) at the time this one is requested.
+        bool fValidatedHeaders;  //! Whether this block has validated headers at the time of request.
     };
     map<uint256, pair<NodeId, list<QueuedBlock>::iterator> > mapBlocksInFlight;
 
+    /** Number of blocks in flight with validated headers. */
+    int nQueuedValidatedHeaders = 0;
+
     /** Number of preferable block download peers. */
     int nPreferredDownload = 0;
 
@@ -252,7 +266,7 @@ struct CNodeState {
         nMisbehavior = 0;
         fShouldBan = false;
         pindexBestKnownBlock = NULL;
-        hashLastUnknownBlock = uint256(0);
+        hashLastUnknownBlock.SetNull();
         pindexLastCommonBlock = NULL;
         fSyncStarted = false;
         nStallingSince = 0;
@@ -314,6 +328,7 @@ void MarkBlockAsReceived(const uint256& hash) {
     map<uint256, pair<NodeId, list<QueuedBlock>::iterator> >::iterator itInFlight = mapBlocksInFlight.find(hash);
     if (itInFlight != mapBlocksInFlight.end()) {
         CNodeState *state = State(itInFlight->second.first);
+        nQueuedValidatedHeaders -= itInFlight->second.second->fValidatedHeaders;
         state->vBlocksInFlight.erase(itInFlight->second.second);
         state->nBlocksInFlight--;
         state->nStallingSince = 0;
@@ -329,7 +344,8 @@ void MarkBlockAsInFlight(NodeId nodeid, const uint256& hash, CBlockIndex *pindex
     // Make sure it's not listed somewhere already.
     MarkBlockAsReceived(hash);
 
-    QueuedBlock newentry = {hash, pindex, GetTimeMicros()};
+    QueuedBlock newentry = {hash, pindex, GetTimeMicros(), nQueuedValidatedHeaders, pindex != NULL};
+    nQueuedValidatedHeaders += newentry.fValidatedHeaders;
     list<QueuedBlock>::iterator it = state->vBlocksInFlight.insert(state->vBlocksInFlight.end(), newentry);
     state->nBlocksInFlight++;
     mapBlocksInFlight[hash] = std::make_pair(nodeid, it);
@@ -340,12 +356,12 @@ void ProcessBlockAvailability(NodeId nodeid) {
     CNodeState *state = State(nodeid);
     assert(state != NULL);
 
-    if (state->hashLastUnknownBlock != 0) {
+    if (!state->hashLastUnknownBlock.IsNull()) {
         BlockMap::iterator itOld = mapBlockIndex.find(state->hashLastUnknownBlock);
         if (itOld != mapBlockIndex.end() && itOld->second->nChainWork > 0) {
             if (state->pindexBestKnownBlock == NULL || itOld->second->nChainWork >= state->pindexBestKnownBlock->nChainWork)
                 state->pindexBestKnownBlock = itOld->second;
-            state->hashLastUnknownBlock = uint256(0);
+            state->hashLastUnknownBlock.SetNull();
         }
     }
 }
@@ -441,6 +457,10 @@ void FindNextBlocksToDownload(NodeId nodeid, unsigned int count, std::vector<CBl
         // are not yet downloaded and not in flight to vBlocks. In the mean time, update
         // pindexLastCommonBlock as long as all ancestors are already downloaded.
         BOOST_FOREACH(CBlockIndex* pindex, vToFetch) {
+            if (!pindex->IsValid(BLOCK_VALID_TREE)) {
+                // We consider the chain that this peer is on invalid.
+                return;
+            }
             if (pindex->nStatus & BLOCK_HAVE_DATA) {
                 if (pindex->nChainTx)
                     state->pindexLastCommonBlock = pindex;
@@ -612,34 +632,11 @@ unsigned int LimitOrphanTxSize(unsigned int nMaxOrphans)
 
 bool IsStandardTx(const CTransaction& tx, string& reason)
 {
-    AssertLockHeld(cs_main);
     if (tx.nVersion > CTransaction::CURRENT_VERSION || tx.nVersion < 1) {
         reason = "version";
         return false;
     }
 
-    // Treat non-final transactions as non-standard to prevent a specific type
-    // of double-spend attack, as well as DoS attacks. (if the transaction
-    // can't be mined, the attacker isn't expending resources broadcasting it)
-    // Basically we don't want to propagate transactions that can't be included in
-    // the next block.
-    //
-    // However, IsFinalTx() is confusing... Without arguments, it uses
-    // chainActive.Height() to evaluate nLockTime; when a block is accepted, chainActive.Height()
-    // is set to the value of nHeight in the block. However, when IsFinalTx()
-    // is called within CBlock::AcceptBlock(), the height of the block *being*
-    // evaluated is what is used. Thus if we want to know if a transaction can
-    // be part of the *next* block, we need to call IsFinalTx() with one more
-    // than chainActive.Height().
-    //
-    // Timestamps on the other hand don't get any special treatment, because we
-    // can't know what timestamp the next block will have, and there aren't
-    // timestamp applications where it matters.
-    if (!IsFinalTx(tx, chainActive.Height() + 1)) {
-        reason = "non-final";
-        return false;
-    }
-
     // Extremely large transactions with lots of inputs can cost the network
     // almost as much to process as they cost the sender in fees, because
     // computing signature hashes is O(ninputs*txsize). Limiting transactions
@@ -747,10 +744,10 @@ bool AreInputsStandard(const CTransaction& tx, const CCoinsViewCache& mapInputs)
         // non-standard. Note that this EvalScript() call will
         // be quick, because if there are any operations
         // beside "push data" in the scriptSig
-        // IsStandard() will have already returned false
+        // IsStandardTx() will have already returned false
         // and this method isn't called.
         vector<vector<unsigned char> > stack;
-        if (!EvalScript(stack, tx.vin[i].scriptSig, false, BaseSignatureChecker()))
+        if (!EvalScript(stack, tx.vin[i].scriptSig, SCRIPT_VERIFY_NONE, BaseSignatureChecker()))
             return false;
 
         if (whichType == TX_SCRIPTHASH)
@@ -823,14 +820,14 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state)
 {
     // Basic checks that don't depend on any context
     if (tx.vin.empty())
-        return state.DoS(10, error("CheckTransaction() : vin empty"),
+        return state.DoS(10, error("CheckTransaction(): vin empty"),
                          REJECT_INVALID, "bad-txns-vin-empty");
     if (tx.vout.empty())
-        return state.DoS(10, error("CheckTransaction() : vout empty"),
+        return state.DoS(10, error("CheckTransaction(): vout empty"),
                          REJECT_INVALID, "bad-txns-vout-empty");
     // Size limits
     if (::GetSerializeSize(tx, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE)
-        return state.DoS(100, error("CheckTransaction() : size limits failed"),
+        return state.DoS(100, error("CheckTransaction(): size limits failed"),
                          REJECT_INVALID, "bad-txns-oversize");
 
     // Check for negative or overflow output values
@@ -838,14 +835,14 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state)
     BOOST_FOREACH(const CTxOut& txout, tx.vout)
     {
         if (txout.nValue < 0)
-            return state.DoS(100, error("CheckTransaction() : txout.nValue negative"),
+            return state.DoS(100, error("CheckTransaction(): txout.nValue negative"),
                              REJECT_INVALID, "bad-txns-vout-negative");
         if (txout.nValue > MAX_MONEY)
-            return state.DoS(100, error("CheckTransaction() : txout.nValue too high"),
+            return state.DoS(100, error("CheckTransaction(): txout.nValue too high"),
                              REJECT_INVALID, "bad-txns-vout-toolarge");
         nValueOut += txout.nValue;
         if (!MoneyRange(nValueOut))
-            return state.DoS(100, error("CheckTransaction() : txout total out of range"),
+            return state.DoS(100, error("CheckTransaction(): txout total out of range"),
                              REJECT_INVALID, "bad-txns-txouttotal-toolarge");
     }
 
@@ -854,7 +851,7 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state)
     BOOST_FOREACH(const CTxIn& txin, tx.vin)
     {
         if (vInOutPoints.count(txin.prevout))
-            return state.DoS(100, error("CheckTransaction() : duplicate inputs"),
+            return state.DoS(100, error("CheckTransaction(): duplicate inputs"),
                              REJECT_INVALID, "bad-txns-inputs-duplicate");
         vInOutPoints.insert(txin.prevout);
     }
@@ -862,14 +859,14 @@ bool CheckTransaction(const CTransaction& tx, CValidationState &state)
     if (tx.IsCoinBase())
     {
         if (tx.vin[0].scriptSig.size() < 2 || tx.vin[0].scriptSig.size() > 100)
-            return state.DoS(100, error("CheckTransaction() : coinbase script size"),
+            return state.DoS(100, error("CheckTransaction(): coinbase script size"),
                              REJECT_INVALID, "bad-cb-length");
     }
     else
     {
         BOOST_FOREACH(const CTxIn& txin, tx.vin)
             if (txin.prevout.IsNull())
-                return state.DoS(10, error("CheckTransaction() : prevout is null"),
+                return state.DoS(10, error("CheckTransaction(): prevout is null"),
                                  REJECT_INVALID, "bad-txns-prevout-null");
     }
 
@@ -907,27 +904,47 @@ CAmount GetMinRelayFee(const CTransaction& tx, unsigned int nBytes, bool fAllowF
 
 
 bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransaction &tx, bool fLimitFree,
-                        bool* pfMissingInputs, bool fRejectInsaneFee)
+                        bool* pfMissingInputs, bool fRejectAbsurdFee)
 {
     AssertLockHeld(cs_main);
     if (pfMissingInputs)
         *pfMissingInputs = false;
 
     if (!CheckTransaction(tx, state))
-        return error("AcceptToMemoryPool: : CheckTransaction failed");
+        return error("AcceptToMemoryPool: CheckTransaction failed");
 
     // Coinbase is only valid in a block, not as a loose transaction
     if (tx.IsCoinBase())
-        return state.DoS(100, error("AcceptToMemoryPool: : coinbase as individual tx"),
+        return state.DoS(100, error("AcceptToMemoryPool: coinbase as individual tx"),
                          REJECT_INVALID, "coinbase");
 
     // Rather not work on nonstandard transactions (unless -testnet/-regtest)
     string reason;
     if (Params().RequireStandard() && !IsStandardTx(tx, reason))
         return state.DoS(0,
-                         error("AcceptToMemoryPool : nonstandard transaction: %s", reason),
+                         error("AcceptToMemoryPool: nonstandard transaction: %s", reason),
                          REJECT_NONSTANDARD, reason);
 
+    // Only accept nLockTime-using transactions that can be mined in the next
+    // block; we don't want our mempool filled up with transactions that can't
+    // be mined yet.
+    //
+    // However, IsFinalTx() is confusing... Without arguments, it uses
+    // chainActive.Height() to evaluate nLockTime; when a block is accepted,
+    // chainActive.Height() is set to the value of nHeight in the block.
+    // However, when IsFinalTx() is called within CBlock::AcceptBlock(), the
+    // height of the block *being* evaluated is what is used. Thus if we want
+    // to know if a transaction can be part of the *next* block, we need to
+    // call IsFinalTx() with one more than chainActive.Height().
+    //
+    // Timestamps on the other hand don't get any special treatment, because we
+    // can't know what timestamp the next block will have, and there aren't
+    // timestamp applications where it matters.
+    if (!IsFinalTx(tx, chainActive.Height() + 1))
+        return state.DoS(0,
+                         error("AcceptToMemoryPool: non-final"),
+                         REJECT_NONSTANDARD, "non-final");
+
     // is it already in the memory pool?
     uint256 hash = tx.GetHash();
     if (pool.exists(hash))
@@ -974,7 +991,7 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
 
         // are the actual inputs available?
         if (!view.HaveInputs(tx))
-            return state.Invalid(error("AcceptToMemoryPool : inputs already spent"),
+            return state.Invalid(error("AcceptToMemoryPool: inputs already spent"),
                                  REJECT_DUPLICATE, "bad-txns-inputs-spent");
 
         // Bring the best block into scope
@@ -988,19 +1005,19 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
 
         // Check for non-standard pay-to-script-hash in inputs
         if (Params().RequireStandard() && !AreInputsStandard(tx, view))
-            return error("AcceptToMemoryPool: : nonstandard transaction input");
+            return error("AcceptToMemoryPool: nonstandard transaction input");
 
         // Check that the transaction doesn't have an excessive number of
         // sigops, making it impossible to mine. Since the coinbase transaction
-        // itself can contain sigops MAX_TX_SIGOPS is less than
+        // itself can contain sigops MAX_STANDARD_TX_SIGOPS is less than
         // MAX_BLOCK_SIGOPS; we still consider this an invalid rather than
         // merely non-standard transaction.
         unsigned int nSigOps = GetLegacySigOpCount(tx);
         nSigOps += GetP2SHSigOpCount(tx, view);
-        if (nSigOps > MAX_TX_SIGOPS)
+        if (nSigOps > MAX_STANDARD_TX_SIGOPS)
             return state.DoS(0,
-                             error("AcceptToMemoryPool : too many sigops %s, %d > %d",
-                                   hash.ToString(), nSigOps, MAX_TX_SIGOPS),
+                             error("AcceptToMemoryPool: too many sigops %s, %d > %d",
+                                   hash.ToString(), nSigOps, MAX_STANDARD_TX_SIGOPS),
                              REJECT_NONSTANDARD, "bad-txns-too-many-sigops");
 
         CAmount nValueOut = tx.GetValueOut();
@@ -1013,11 +1030,16 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
         // Don't accept it if it can't get into a block
         CAmount txMinFee = GetMinRelayFee(tx, nSize, true);
         if (fLimitFree && nFees < txMinFee)
-            return state.DoS(0, error("AcceptToMemoryPool : not enough fees %s, %d < %d",
+            return state.DoS(0, error("AcceptToMemoryPool: not enough fees %s, %d < %d",
                                       hash.ToString(), nFees, txMinFee),
                              REJECT_INSUFFICIENTFEE, "insufficient fee");
 
-        // Continuously rate-limit free (really, very-low-fee)transactions
+        // Require that free transactions have sufficient priority to be mined in the next block.
+        if (GetBoolArg("-relaypriority", true) && nFees < ::minRelayTxFee.GetFee(nSize) && !AllowFree(view.GetPriority(tx, chainActive.Height() + 1))) {
+            return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "insufficient priority");
+        }
+
+        // Continuously rate-limit free (really, very-low-fee) transactions
         // This mitigates 'penny-flooding' -- sending thousands of free transactions just to
         // be annoying or make others' transactions take longer to confirm.
         if (fLimitFree && nFees < ::minRelayTxFee.GetFee(nSize))
@@ -1035,14 +1057,14 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
             // -limitfreerelay unit is thousand-bytes-per-minute
             // At default rate it would take over a month to fill 1GB
             if (dFreeCount >= GetArg("-limitfreerelay", 15)*10*1000)
-                return state.DoS(0, error("AcceptToMemoryPool : free transaction rejected by rate limiter"),
-                                 REJECT_INSUFFICIENTFEE, "insufficient priority");
+                return state.DoS(0, error("AcceptToMemoryPool: free transaction rejected by rate limiter"),
+                                 REJECT_INSUFFICIENTFEE, "rate limited free transaction");
             LogPrint("mempool", "Rate limit dFreeCount: %g => %g\n", dFreeCount, dFreeCount+nSize);
             dFreeCount += nSize;
         }
 
-        if (fRejectInsaneFee && nFees > ::minRelayTxFee.GetFee(nSize) * 10000)
-            return error("AcceptToMemoryPool: : insane fees %s, %d > %d",
+        if (fRejectAbsurdFee && nFees > ::minRelayTxFee.GetFee(nSize) * 10000)
+            return error("AcceptToMemoryPool: absurdly high fees %s, %d > %d",
                          hash.ToString(),
                          nFees, ::minRelayTxFee.GetFee(nSize) * 10000);
 
@@ -1050,8 +1072,23 @@ bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransa
         // This is done last to help prevent CPU exhaustion denial-of-service attacks.
         if (!CheckInputs(tx, state, view, true, STANDARD_SCRIPT_VERIFY_FLAGS, true))
         {
-            return error("AcceptToMemoryPool: : ConnectInputs failed %s", hash.ToString());
+            return error("AcceptToMemoryPool: ConnectInputs failed %s", hash.ToString());
         }
+
+        // Check again against just the consensus-critical mandatory script
+        // verification flags, in case of bugs in the standard flags that cause
+        // transactions to pass as valid when they're actually invalid. For
+        // instance the STRICTENC flag was incorrectly allowing certain
+        // CHECKSIG NOT scripts to pass, even though they were invalid.
+        //
+        // There is a similar check in CreateNewBlock() to prevent creating
+        // invalid blocks, however allowing such transactions into the mempool
+        // can be exploited as a DoS attack.
+        if (!CheckInputs(tx, state, view, true, MANDATORY_SCRIPT_VERIFY_FLAGS, true))
+        {
+            return error("AcceptToMemoryPool: BUG! PLEASE REPORT THIS! ConnectInputs failed against MANDATORY but not STANDARD flags %s", hash.ToString());
+        }
+
         // Store transaction in memory
         pool.addUnchecked(hash, entry);
     }
@@ -1078,17 +1115,19 @@ bool GetTransaction(const uint256 &hash, CTransaction &txOut, uint256 &hashBlock
             CDiskTxPos postx;
             if (pblocktree->ReadTxIndex(hash, postx)) {
                 CAutoFile file(OpenBlockFile(postx, true), SER_DISK, CLIENT_VERSION);
+                if (file.IsNull())
+                    return error("%s: OpenBlockFile failed", __func__);
                 CBlockHeader header;
                 try {
                     file >> header;
                     fseek(file.Get(), postx.nTxOffset, SEEK_CUR);
                     file >> txOut;
-                } catch (std::exception &e) {
-                    return error("%s : Deserialize or I/O error - %s", __func__, e.what());
+                } catch (const std::exception& e) {
+                    return error("%s: Deserialize or I/O error - %s", __func__, e.what());
                 }
                 hashBlock = header.GetHash();
                 if (txOut.GetHash() != hash)
-                    return error("%s : txid mismatch", __func__);
+                    return error("%s: txid mismatch", __func__);
                 return true;
             }
         }
@@ -1137,7 +1176,7 @@ bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos)
     // Open history file to append
     CAutoFile fileout(OpenBlockFile(pos), SER_DISK, CLIENT_VERSION);
     if (fileout.IsNull())
-        return error("WriteBlockToDisk : OpenBlockFile failed");
+        return error("WriteBlockToDisk: OpenBlockFile failed");
 
     // Write index header
     unsigned int nSize = fileout.GetSerializeSize(block);
@@ -1146,7 +1185,7 @@ bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos)
     // Write block
     long fileOutPos = ftell(fileout.Get());
     if (fileOutPos < 0)
-        return error("WriteBlockToDisk : ftell failed");
+        return error("WriteBlockToDisk: ftell failed");
     pos.nPos = (unsigned int)fileOutPos;
     fileout << block;
 
@@ -1160,19 +1199,19 @@ bool ReadBlockFromDisk(CBlock& block, const CDiskBlockPos& pos)
     // Open history file to read
     CAutoFile filein(OpenBlockFile(pos, true), SER_DISK, CLIENT_VERSION);
     if (filein.IsNull())
-        return error("ReadBlockFromDisk : OpenBlockFile failed");
+        return error("ReadBlockFromDisk: OpenBlockFile failed");
 
     // Read block
     try {
         filein >> block;
     }
-    catch (std::exception &e) {
-        return error("%s : Deserialize or I/O error - %s", __func__, e.what());
+    catch (const std::exception& e) {
+        return error("%s: Deserialize or I/O error - %s", __func__, e.what());
     }
 
     // Check the header
     if (!CheckProofOfWork(block.GetHash(), block.nBits))
-        return error("ReadBlockFromDisk : Errors in block header");
+        return error("ReadBlockFromDisk: Errors in block header");
 
     return true;
 }
@@ -1182,13 +1221,13 @@ bool ReadBlockFromDisk(CBlock& block, const CBlockIndex* pindex)
     if (!ReadBlockFromDisk(block, pindex->GetBlockPos()))
         return false;
     if (block.GetHash() != pindex->GetBlockHash())
-        return error("ReadBlockFromDisk(CBlock&, CBlockIndex*) : GetHash() doesn't match index");
+        return error("ReadBlockFromDisk(CBlock&, CBlockIndex*): GetHash() doesn't match index");
     return true;
 }
 
 CAmount GetBlockValue(int nHeight, const CAmount& nFees)
 {
-    int64_t nSubsidy = 50 * COIN;
+    CAmount nSubsidy = 50 * COIN;
     int halvings = nHeight / Params().SubsidyHalvingInterval();
 
     // Force block reward to zero when right shift is undefined.
@@ -1354,9 +1393,20 @@ void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCach
     if (!tx.IsCoinBase()) {
         txundo.vprevout.reserve(tx.vin.size());
         BOOST_FOREACH(const CTxIn &txin, tx.vin) {
-            txundo.vprevout.push_back(CTxInUndo());
-            bool ret = inputs.ModifyCoins(txin.prevout.hash)->Spend(txin.prevout, txundo.vprevout.back());
-            assert(ret);
+            CCoinsModifier coins = inputs.ModifyCoins(txin.prevout.hash);
+            unsigned nPos = txin.prevout.n;
+
+            if (nPos >= coins->vout.size() || coins->vout[nPos].IsNull())
+                assert(false);
+            // mark an outpoint spent, and construct undo information
+            txundo.vprevout.push_back(CTxInUndo(coins->vout[nPos]));
+            coins->Spend(nPos);
+            if (coins->vout.size() == 0) {
+                CTxInUndo& undo = txundo.vprevout.back();
+                undo.nHeight = coins->nHeight;
+                undo.fCoinBase = coins->fCoinBase;
+                undo.nVersion = coins->nVersion;
+            }
         }
     }
 
@@ -1364,10 +1414,16 @@ void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCach
     inputs.ModifyCoins(tx.GetHash())->FromTx(tx, nHeight);
 }
 
+void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, int nHeight)
+{
+    CTxUndo txundo;
+    UpdateCoins(tx, state, inputs, txundo, nHeight);
+}
+
 bool CScriptCheck::operator()() {
     const CScript &scriptSig = ptxTo->vin[nIn].scriptSig;
-    if (!VerifyScript(scriptSig, scriptPubKey, nFlags, CachingSignatureChecker(*ptxTo, nIn, cacheStore), &error)) {
-        return ::error("CScriptCheck() : %s:%d VerifySignature failed: %s", ptxTo->GetHash().ToString(), nIn, ScriptErrorString(error));
+    if (!VerifyScript(scriptSig, scriptPubKey, nFlags, CachingTransactionSignatureChecker(ptxTo, nIn, cacheStore), &error)) {
+        return ::error("CScriptCheck(): %s:%d VerifySignature failed: %s", ptxTo->GetHash().ToString(), nIn, ScriptErrorString(error));
     }
     return true;
 }
@@ -1382,7 +1438,7 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi
         // This doesn't trigger the DoS code on purpose; if it did, it would make it easier
         // for an attacker to attempt to split the network.
         if (!inputs.HaveInputs(tx))
-            return state.Invalid(error("CheckInputs() : %s inputs unavailable", tx.GetHash().ToString()));
+            return state.Invalid(error("CheckInputs(): %s inputs unavailable", tx.GetHash().ToString()));
 
         // While checking, GetBestBlock() refers to the parent block.
         // This is also true for mempool checks.
@@ -1400,31 +1456,31 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi
             if (coins->IsCoinBase()) {
                 if (nSpendHeight - coins->nHeight < COINBASE_MATURITY)
                     return state.Invalid(
-                        error("CheckInputs() : tried to spend coinbase at depth %d", nSpendHeight - coins->nHeight),
+                        error("CheckInputs(): tried to spend coinbase at depth %d", nSpendHeight - coins->nHeight),
                         REJECT_INVALID, "bad-txns-premature-spend-of-coinbase");
             }
 
             // Check for negative or overflow input values
             nValueIn += coins->vout[prevout.n].nValue;
             if (!MoneyRange(coins->vout[prevout.n].nValue) || !MoneyRange(nValueIn))
-                return state.DoS(100, error("CheckInputs() : txin values out of range"),
+                return state.DoS(100, error("CheckInputs(): txin values out of range"),
                                  REJECT_INVALID, "bad-txns-inputvalues-outofrange");
 
         }
 
         if (nValueIn < tx.GetValueOut())
-            return state.DoS(100, error("CheckInputs() : %s value in (%s) < value out (%s)",
+            return state.DoS(100, error("CheckInputs(): %s value in (%s) < value out (%s)",
                                         tx.GetHash().ToString(), FormatMoney(nValueIn), FormatMoney(tx.GetValueOut())),
                              REJECT_INVALID, "bad-txns-in-belowout");
 
         // Tally transaction fees
         CAmount nTxFee = nValueIn - tx.GetValueOut();
         if (nTxFee < 0)
-            return state.DoS(100, error("CheckInputs() : %s nTxFee < 0", tx.GetHash().ToString()),
+            return state.DoS(100, error("CheckInputs(): %s nTxFee < 0", tx.GetHash().ToString()),
                              REJECT_INVALID, "bad-txns-fee-negative");
         nFees += nTxFee;
         if (!MoneyRange(nFees))
-            return state.DoS(100, error("CheckInputs() : nFees out of range"),
+            return state.DoS(100, error("CheckInputs(): nFees out of range"),
                              REJECT_INVALID, "bad-txns-fee-outofrange");
 
         // The first loop above does all the inexpensive checks.
@@ -1474,7 +1530,63 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi
     return true;
 }
 
+namespace {
+
+bool UndoWriteToDisk(const CBlockUndo& blockundo, CDiskBlockPos& pos, const uint256& hashBlock)
+{
+    // Open history file to append
+    CAutoFile fileout(OpenUndoFile(pos), SER_DISK, CLIENT_VERSION);
+    if (fileout.IsNull())
+        return error("%s: OpenUndoFile failed", __func__);
+
+    // Write index header
+    unsigned int nSize = fileout.GetSerializeSize(blockundo);
+    fileout << FLATDATA(Params().MessageStart()) << nSize;
+
+    // Write undo data
+    long fileOutPos = ftell(fileout.Get());
+    if (fileOutPos < 0)
+        return error("%s: ftell failed", __func__);
+    pos.nPos = (unsigned int)fileOutPos;
+    fileout << blockundo;
+
+    // calculate & write checksum
+    CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION);
+    hasher << hashBlock;
+    hasher << blockundo;
+    fileout << hasher.GetHash();
+
+    return true;
+}
+
+bool UndoReadFromDisk(CBlockUndo& blockundo, const CDiskBlockPos& pos, const uint256& hashBlock)
+{
+    // Open history file to read
+    CAutoFile filein(OpenUndoFile(pos, true), SER_DISK, CLIENT_VERSION);
+    if (filein.IsNull())
+        return error("%s: OpenBlockFile failed", __func__);
 
+    // Read block
+    uint256 hashChecksum;
+    try {
+        filein >> blockundo;
+        filein >> hashChecksum;
+    }
+    catch (const std::exception& e) {
+        return error("%s: Deserialize or I/O error - %s", __func__, e.what());
+    }
+
+    // Verify checksum
+    CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION);
+    hasher << hashBlock;
+    hasher << blockundo;
+    if (hashChecksum != hasher.GetHash())
+        return error("%s: Checksum mismatch", __func__);
+
+    return true;
+}
+
+} // anon namespace
 
 bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex, CCoinsViewCache& view, bool* pfClean)
 {
@@ -1488,12 +1600,12 @@ bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex
     CBlockUndo blockUndo;
     CDiskBlockPos pos = pindex->GetUndoPos();
     if (pos.IsNull())
-        return error("DisconnectBlock() : no undo data available");
-    if (!blockUndo.ReadFromDisk(pos, pindex->pprev->GetBlockHash()))
-        return error("DisconnectBlock() : failure reading undo data");
+        return error("DisconnectBlock(): no undo data available");
+    if (!UndoReadFromDisk(blockUndo, pos, pindex->pprev->GetBlockHash()))
+        return error("DisconnectBlock(): failure reading undo data");
 
     if (blockUndo.vtxundo.size() + 1 != block.vtx.size())
-        return error("DisconnectBlock() : block and undo data inconsistent");
+        return error("DisconnectBlock(): block and undo data inconsistent");
 
     // undo transactions in reverse order
     for (int i = block.vtx.size() - 1; i >= 0; i--) {
@@ -1516,7 +1628,7 @@ bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex
         if (outsBlock.nVersion < 0)
             outs->nVersion = outsBlock.nVersion;
         if (*outs != outsBlock)
-            fClean = fClean && error("DisconnectBlock() : added transaction mismatch? database corrupted");
+            fClean = fClean && error("DisconnectBlock(): added transaction mismatch? database corrupted");
 
         // remove outputs
         outs->Clear();
@@ -1526,7 +1638,7 @@ bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex
         if (i > 0) { // not coinbases
             const CTxUndo &txundo = blockUndo.vtxundo[i-1];
             if (txundo.vprevout.size() != tx.vin.size())
-                return error("DisconnectBlock() : transaction and undo data inconsistent");
+                return error("DisconnectBlock(): transaction and undo data inconsistent");
             for (unsigned int j = tx.vin.size(); j-- > 0;) {
                 const COutPoint &out = tx.vin[j].prevout;
                 const CTxInUndo &undo = txundo.vprevout[j];
@@ -1534,17 +1646,17 @@ bool DisconnectBlock(CBlock& block, CValidationState& state, CBlockIndex* pindex
                 if (undo.nHeight != 0) {
                     // undo data contains height: this is the last output of the prevout tx being spent
                     if (!coins->IsPruned())
-                        fClean = fClean && error("DisconnectBlock() : undo data overwriting existing transaction");
+                        fClean = fClean && error("DisconnectBlock(): undo data overwriting existing transaction");
                     coins->Clear();
                     coins->fCoinBase = undo.fCoinBase;
                     coins->nHeight = undo.nHeight;
                     coins->nVersion = undo.nVersion;
                 } else {
                     if (coins->IsPruned())
-                        fClean = fClean && error("DisconnectBlock() : undo data adding output to missing transaction");
+                        fClean = fClean && error("DisconnectBlock(): undo data adding output to missing transaction");
                 }
                 if (coins->IsAvailable(out.n))
-                    fClean = fClean && error("DisconnectBlock() : undo data overwriting existing output");
+                    fClean = fClean && error("DisconnectBlock(): undo data overwriting existing output");
                 if (coins->vout.size() < out.n+1)
                     coins->vout.resize(out.n+1);
                 coins->vout[out.n] = undo.txout;
@@ -1609,13 +1721,14 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         return false;
 
     // verify that the view's current state corresponds to the previous block
-    uint256 hashPrevBlock = pindex->pprev == NULL ? uint256(0) : pindex->pprev->GetBlockHash();
+    uint256 hashPrevBlock = pindex->pprev == NULL ? uint256() : pindex->pprev->GetBlockHash();
     assert(hashPrevBlock == view.GetBestBlock());
 
     // Special case for the genesis block, skipping connection of its transactions
     // (its coinbase is unspendable)
     if (block.GetHash() == Params().HashGenesisBlock()) {
-        view.SetBestBlock(pindex->GetBlockHash());
+        if (!fJustCheck)
+            view.SetBestBlock(pindex->GetBlockHash());
         return true;
     }
 
@@ -1634,13 +1747,13 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
     // two in the chain that violate it. This prevents exploiting the issue against nodes in their
     // initial block download.
     bool fEnforceBIP30 = (!pindex->phashBlock) || // Enforce on CreateNewBlock invocations which don't have a hash.
-                          !((pindex->nHeight==91842 && pindex->GetBlockHash() == uint256("0x00000000000a4d0a398161ffc163c503763b1f4360639393e0e4c8e300e0caec")) ||
-                           (pindex->nHeight==91880 && pindex->GetBlockHash() == uint256("0x00000000000743f190a18c5577a3c2d2a1f610ae9601ac046a38084ccb7cd721")));
+                          !((pindex->nHeight==91842 && pindex->GetBlockHash() == uint256S("0x00000000000a4d0a398161ffc163c503763b1f4360639393e0e4c8e300e0caec")) ||
+                           (pindex->nHeight==91880 && pindex->GetBlockHash() == uint256S("0x00000000000743f190a18c5577a3c2d2a1f610ae9601ac046a38084ccb7cd721")));
     if (fEnforceBIP30) {
         BOOST_FOREACH(const CTransaction& tx, block.vtx) {
             const CCoins* coins = view.AccessCoins(tx.GetHash());
             if (coins && !coins->IsPruned())
-                return state.DoS(100, error("ConnectBlock() : tried to overwrite transaction"),
+                return state.DoS(100, error("ConnectBlock(): tried to overwrite transaction"),
                                  REJECT_INVALID, "bad-txns-BIP30");
         }
     }
@@ -1651,6 +1764,11 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
 
     unsigned int flags = fStrictPayToScriptHash ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE;
 
+    // Start enforcing the DERSIG (BIP66) rules, for block.nVersion=3 blocks, when 75% of the network has upgraded:
+    if (block.nVersion >= 3 && IsSuperMajority(3, pindex->pprev, Params().EnforceBlockUpgradeMajority())) {
+        flags |= SCRIPT_VERIFY_DERSIG;
+    }
+
     CBlockUndo blockundo;
 
     CCheckQueueControl<CScriptCheck> control(fScriptChecks && nScriptCheckThreads ? &scriptcheckqueue : NULL);
@@ -1670,13 +1788,13 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         nInputs += tx.vin.size();
         nSigOps += GetLegacySigOpCount(tx);
         if (nSigOps > MAX_BLOCK_SIGOPS)
-            return state.DoS(100, error("ConnectBlock() : too many sigops"),
+            return state.DoS(100, error("ConnectBlock(): too many sigops"),
                              REJECT_INVALID, "bad-blk-sigops");
 
         if (!tx.IsCoinBase())
         {
             if (!view.HaveInputs(tx))
-                return state.DoS(100, error("ConnectBlock() : inputs missing/spent"),
+                return state.DoS(100, error("ConnectBlock(): inputs missing/spent"),
                                  REJECT_INVALID, "bad-txns-inputs-missingorspent");
 
             if (fStrictPayToScriptHash)
@@ -1686,7 +1804,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
                 // an incredibly-expensive-to-validate block.
                 nSigOps += GetP2SHSigOpCount(tx, view);
                 if (nSigOps > MAX_BLOCK_SIGOPS)
-                    return state.DoS(100, error("ConnectBlock() : too many sigops"),
+                    return state.DoS(100, error("ConnectBlock(): too many sigops"),
                                      REJECT_INVALID, "bad-blk-sigops");
             }
 
@@ -1712,7 +1830,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
 
     if (block.vtx[0].GetValueOut() > GetBlockValue(pindex->nHeight, nFees))
         return state.DoS(100,
-                         error("ConnectBlock() : coinbase pays too much (actual=%d vs limit=%d)",
+                         error("ConnectBlock(): coinbase pays too much (actual=%d vs limit=%d)",
                                block.vtx[0].GetValueOut(), GetBlockValue(pindex->nHeight, nFees)),
                                REJECT_INVALID, "bad-cb-amount");
 
@@ -1730,8 +1848,8 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         if (pindex->GetUndoPos().IsNull()) {
             CDiskBlockPos pos;
             if (!FindUndoPos(state, pindex->nFile, pos, ::GetSerializeSize(blockundo, SER_DISK, CLIENT_VERSION) + 40))
-                return error("ConnectBlock() : FindUndoPos failed");
-            if (!blockundo.WriteToDisk(pos, pindex->pprev->GetBlockHash()))
+                return error("ConnectBlock(): FindUndoPos failed");
+            if (!UndoWriteToDisk(blockundo, pos, pindex->pprev->GetBlockHash()))
                 return state.Abort("Failed to write undo data");
 
             // update nUndoPos in block index
@@ -1778,6 +1896,7 @@ enum FlushStateMode {
 bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode) {
     LOCK(cs_main);
     static int64_t nLastWrite = 0;
+    try {
     if ((mode == FLUSH_STATE_ALWAYS) ||
         ((mode == FLUSH_STATE_PERIODIC || mode == FLUSH_STATE_IF_NEEDED) && pcoinsTip->GetCacheSize() > nCoinCacheSize) ||
         (mode == FLUSH_STATE_PERIODIC && GetTimeMicros() > nLastWrite + DATABASE_WRITE_INTERVAL * 1000000)) {
@@ -1791,24 +1910,23 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode) {
         // First make sure all block and undo data is flushed to disk.
         FlushBlockFile();
         // Then update all block file information (which may refer to block and undo files).
-        bool fileschanged = false;
-        for (set<int>::iterator it = setDirtyFileInfo.begin(); it != setDirtyFileInfo.end(); ) {
-            if (!pblocktree->WriteBlockFileInfo(*it, vinfoBlockFile[*it])) {
-                return state.Abort("Failed to write to block index");
+        {
+            std::vector<std::pair<int, const CBlockFileInfo*> > vFiles;
+            vFiles.reserve(setDirtyFileInfo.size());
+            for (set<int>::iterator it = setDirtyFileInfo.begin(); it != setDirtyFileInfo.end(); ) {
+                vFiles.push_back(make_pair(*it, &vinfoBlockFile[*it]));
+                setDirtyFileInfo.erase(it++);
+            }
+            std::vector<const CBlockIndex*> vBlocks;
+            vBlocks.reserve(setDirtyBlockIndex.size());
+            for (set<CBlockIndex*>::iterator it = setDirtyBlockIndex.begin(); it != setDirtyBlockIndex.end(); ) {
+                vBlocks.push_back(*it);
+                setDirtyBlockIndex.erase(it++);
+            }
+            if (!pblocktree->WriteBatchSync(vFiles, nLastBlockFile, vBlocks)) {
+                return state.Abort("Files to write to block index database");
             }
-            fileschanged = true;
-            setDirtyFileInfo.erase(it++);
-        }
-        if (fileschanged && !pblocktree->WriteLastBlockFile(nLastBlockFile)) {
-            return state.Abort("Failed to write to block index");
-        }
-        for (set<CBlockIndex*>::iterator it = setDirtyBlockIndex.begin(); it != setDirtyBlockIndex.end(); ) {
-             if (!pblocktree->WriteBlockIndex(CDiskBlockIndex(*it))) {
-                 return state.Abort("Failed to write to block index");
-             }
-             setDirtyBlockIndex.erase(it++);
         }
-        pblocktree->Sync();
         // Finally flush the chainstate (which may refer to block index entries).
         if (!pcoinsTip->Flush())
             return state.Abort("Failed to write to coin database");
@@ -1818,6 +1936,9 @@ bool static FlushStateToDisk(CValidationState &state, FlushStateMode mode) {
         }
         nLastWrite = GetTimeMicros();
     }
+    } catch (const std::runtime_error& e) {
+        return state.Abort(std::string("System error while flushing: ") + e.what());
+    }
     return true;
 }
 
@@ -1879,7 +2000,7 @@ bool static DisconnectTip(CValidationState &state) {
     {
         CCoinsViewCache view(pcoinsTip);
         if (!DisconnectBlock(block, state, pindexDelete, view))
-            return error("DisconnectTip() : DisconnectBlock %s failed", pindexDelete->GetBlockHash().ToString());
+            return error("DisconnectTip(): DisconnectBlock %s failed", pindexDelete->GetBlockHash().ToString());
         assert(view.Flush());
     }
     LogPrint("bench", "- Disconnect block: %.2fms\n", (GetTimeMicros() - nStart) * 0.001);
@@ -1891,10 +2012,10 @@ bool static DisconnectTip(CValidationState &state) {
         // ignore validation errors in resurrected transactions
         list<CTransaction> removed;
         CValidationState stateDummy;
-        if (!tx.IsCoinBase())
-            if (!AcceptToMemoryPool(mempool, stateDummy, tx, false, NULL))
-                mempool.remove(tx, removed, true);
+        if (tx.IsCoinBase() || !AcceptToMemoryPool(mempool, stateDummy, tx, false, NULL))
+            mempool.remove(tx, removed, true);
     }
+    mempool.removeCoinbaseSpends(pcoinsTip, pindexDelete->nHeight);
     mempool.check(pcoinsTip);
     // Update chainActive and related variables.
     UpdateTip(pindexDelete->pprev);
@@ -1939,7 +2060,7 @@ bool static ConnectTip(CValidationState &state, CBlockIndex *pindexNew, CBlock *
         if (!rv) {
             if (state.IsInvalid())
                 InvalidBlockFound(pindexNew, state);
-            return error("ConnectTip() : ConnectBlock %s failed", pindexNew->GetBlockHash().ToString());
+            return error("ConnectTip(): ConnectBlock %s failed", pindexNew->GetBlockHash().ToString());
         }
         mapBlockSource.erase(inv.hash);
         nTime3 = GetTimeMicros(); nTimeConnectTotal += nTime3 - nTime2;
@@ -2376,12 +2497,12 @@ bool CheckBlockHeader(const CBlockHeader& block, CValidationState& state, bool f
 {
     // Check proof of work matches claimed amount
     if (fCheckPOW && !CheckProofOfWork(block.GetHash(), block.nBits))
-        return state.DoS(50, error("CheckBlockHeader() : proof of work failed"),
+        return state.DoS(50, error("CheckBlockHeader(): proof of work failed"),
                          REJECT_INVALID, "high-hash");
 
     // Check timestamp
     if (block.GetBlockTime() > GetAdjustedTime() + 2 * 60 * 60)
-        return state.Invalid(error("CheckBlockHeader() : block timestamp too far in the future"),
+        return state.Invalid(error("CheckBlockHeader(): block timestamp too far in the future"),
                              REJECT_INVALID, "time-too-new");
 
     return true;
@@ -2401,14 +2522,14 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo
         bool mutated;
         uint256 hashMerkleRoot2 = block.BuildMerkleTree(&mutated);
         if (block.hashMerkleRoot != hashMerkleRoot2)
-            return state.DoS(100, error("CheckBlock() : hashMerkleRoot mismatch"),
+            return state.DoS(100, error("CheckBlock(): hashMerkleRoot mismatch"),
                              REJECT_INVALID, "bad-txnmrklroot", true);
 
         // Check for merkle tree malleability (CVE-2012-2459): repeating sequences
         // of transactions in a block without affecting the merkle root of a block,
         // while still invalidating it.
         if (mutated)
-            return state.DoS(100, error("CheckBlock() : duplicate transaction"),
+            return state.DoS(100, error("CheckBlock(): duplicate transaction"),
                              REJECT_INVALID, "bad-txns-duplicate", true);
     }
 
@@ -2418,22 +2539,22 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo
 
     // Size limits
     if (block.vtx.empty() || block.vtx.size() > MAX_BLOCK_SIZE || ::GetSerializeSize(block, SER_NETWORK, PROTOCOL_VERSION) > MAX_BLOCK_SIZE)
-        return state.DoS(100, error("CheckBlock() : size limits failed"),
+        return state.DoS(100, error("CheckBlock(): size limits failed"),
                          REJECT_INVALID, "bad-blk-length");
 
     // First transaction must be coinbase, the rest must not be
     if (block.vtx.empty() || !block.vtx[0].IsCoinBase())
-        return state.DoS(100, error("CheckBlock() : first tx is not coinbase"),
+        return state.DoS(100, error("CheckBlock(): first tx is not coinbase"),
                          REJECT_INVALID, "bad-cb-missing");
     for (unsigned int i = 1; i < block.vtx.size(); i++)
         if (block.vtx[i].IsCoinBase())
-            return state.DoS(100, error("CheckBlock() : more than one coinbase"),
+            return state.DoS(100, error("CheckBlock(): more than one coinbase"),
                              REJECT_INVALID, "bad-cb-multiple");
 
     // Check transactions
     BOOST_FOREACH(const CTransaction& tx, block.vtx)
         if (!CheckTransaction(tx, state))
-            return error("CheckBlock() : CheckTransaction failed");
+            return error("CheckBlock(): CheckTransaction failed");
 
     unsigned int nSigOps = 0;
     BOOST_FOREACH(const CTransaction& tx, block.vtx)
@@ -2441,7 +2562,7 @@ bool CheckBlock(const CBlock& block, CValidationState& state, bool fCheckPOW, bo
         nSigOps += GetLegacySigOpCount(tx);
     }
     if (nSigOps > MAX_BLOCK_SIGOPS)
-        return state.DoS(100, error("CheckBlock() : out-of-bounds SigOpCount"),
+        return state.DoS(100, error("CheckBlock(): out-of-bounds SigOpCount"),
                          REJECT_INVALID, "bad-blk-sigops", true);
 
     return true;
@@ -2460,29 +2581,35 @@ bool ContextualCheckBlockHeader(const CBlockHeader& block, CValidationState& sta
     // Check proof of work
     if ((!Params().SkipProofOfWorkCheck()) &&
        (block.nBits != GetNextWorkRequired(pindexPrev, &block)))
-        return state.DoS(100, error("%s : incorrect proof of work", __func__),
+        return state.DoS(100, error("%s: incorrect proof of work", __func__),
                          REJECT_INVALID, "bad-diffbits");
 
     // Check timestamp against prev
     if (block.GetBlockTime() <= pindexPrev->GetMedianTimePast())
-        return state.Invalid(error("%s : block's timestamp is too early", __func__),
+        return state.Invalid(error("%s: block's timestamp is too early", __func__),
                              REJECT_INVALID, "time-too-old");
 
     // Check that the block chain matches the known block chain up to a checkpoint
     if (!Checkpoints::CheckBlock(nHeight, hash))
-        return state.DoS(100, error("%s : rejected by checkpoint lock-in at %d", __func__, nHeight),
+        return state.DoS(100, error("%s: rejected by checkpoint lock-in at %d", __func__, nHeight),
                          REJECT_CHECKPOINT, "checkpoint mismatch");
 
     // Don't accept any forks from the main chain prior to last checkpoint
     CBlockIndex* pcheckpoint = Checkpoints::GetLastCheckpoint();
     if (pcheckpoint && nHeight < pcheckpoint->nHeight)
-        return state.DoS(100, error("%s : forked chain older than last checkpoint (height %d)", __func__, nHeight));
+        return state.DoS(100, error("%s: forked chain older than last checkpoint (height %d)", __func__, nHeight));
 
     // Reject block.nVersion=1 blocks when 95% (75% on testnet) of the network has upgraded:
-    if (block.nVersion < 2 && 
-        CBlockIndex::IsSuperMajority(2, pindexPrev, Params().RejectBlockOutdatedMajority()))
+    if (block.nVersion < 2 && IsSuperMajority(2, pindexPrev, Params().RejectBlockOutdatedMajority()))
     {
-        return state.Invalid(error("%s : rejected nVersion=1 block", __func__),
+        return state.Invalid(error("%s: rejected nVersion=1 block", __func__),
+                             REJECT_OBSOLETE, "bad-version");
+    }
+
+    // Reject block.nVersion=2 blocks when 95% (75% on testnet) of the network has upgraded:
+    if (block.nVersion < 3 && IsSuperMajority(3, pindexPrev, Params().RejectBlockOutdatedMajority()))
+    {
+        return state.Invalid(error("%s : rejected nVersion=2 block", __func__),
                              REJECT_OBSOLETE, "bad-version");
     }
 
@@ -2496,18 +2623,17 @@ bool ContextualCheckBlock(const CBlock& block, CValidationState& state, CBlockIn
     // Check that all transactions are finalized
     BOOST_FOREACH(const CTransaction& tx, block.vtx)
         if (!IsFinalTx(tx, nHeight, block.GetBlockTime())) {
-            return state.DoS(10, error("%s : contains a non-final transaction", __func__), REJECT_INVALID, "bad-txns-nonfinal");
+            return state.DoS(10, error("%s: contains a non-final transaction", __func__), REJECT_INVALID, "bad-txns-nonfinal");
         }
 
     // Enforce block.nVersion=2 rule that the coinbase starts with serialized block height
     // if 750 of the last 1,000 blocks are version 2 or greater (51/100 if testnet):
-    if (block.nVersion >= 2 && 
-        CBlockIndex::IsSuperMajority(2, pindexPrev, Params().EnforceBlockUpgradeMajority()))
+    if (block.nVersion >= 2 && IsSuperMajority(2, pindexPrev, Params().EnforceBlockUpgradeMajority()))
     {
         CScript expect = CScript() << nHeight;
         if (block.vtx[0].vin[0].scriptSig.size() < expect.size() ||
             !std::equal(expect.begin(), expect.end(), block.vtx[0].vin[0].scriptSig.begin())) {
-            return state.DoS(100, error("%s : block height mismatch in coinbase", __func__), REJECT_INVALID, "bad-cb-height");
+            return state.DoS(100, error("%s: block height mismatch in coinbase", __func__), REJECT_INVALID, "bad-cb-height");
         }
     }
 
@@ -2527,7 +2653,7 @@ bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBloc
         if (ppindex)
             *ppindex = pindex;
         if (pindex->nStatus & BLOCK_FAILED_MASK)
-            return state.Invalid(error("%s : block is marked invalid", __func__), 0, "duplicate");
+            return state.Invalid(error("%s: block is marked invalid", __func__), 0, "duplicate");
         return true;
     }
 
@@ -2539,8 +2665,10 @@ bool AcceptBlockHeader(const CBlockHeader& block, CValidationState& state, CBloc
     if (hash != Params().HashGenesisBlock()) {
         BlockMap::iterator mi = mapBlockIndex.find(block.hashPrevBlock);
         if (mi == mapBlockIndex.end())
-            return state.DoS(10, error("%s : prev block not found", __func__), 0, "bad-prevblk");
+            return state.DoS(10, error("%s: prev block not found", __func__), 0, "bad-prevblk");
         pindexPrev = (*mi).second;
+        if (pindexPrev->nStatus & BLOCK_FAILED_MASK)
+            return state.DoS(100, error("%s: prev block invalid", __func__), REJECT_INVALID, "bad-prevblk");
     }
 
     if (!ContextualCheckBlockHeader(block, state, pindexPrev))
@@ -2566,7 +2694,7 @@ bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex** ppindex,
 
     if (pindex->nStatus & BLOCK_HAVE_DATA) {
         // TODO: deal better with duplicate blocks.
-        // return state.DoS(20, error("AcceptBlock() : already have block %d %s", pindex->nHeight, pindex->GetBlockHash().ToString()), REJECT_DUPLICATE, "duplicate");
+        // return state.DoS(20, error("AcceptBlock(): already have block %d %s", pindex->nHeight, pindex->GetBlockHash().ToString()), REJECT_DUPLICATE, "duplicate");
         return true;
     }
 
@@ -2587,20 +2715,20 @@ bool AcceptBlock(CBlock& block, CValidationState& state, CBlockIndex** ppindex,
         if (dbp != NULL)
             blockPos = *dbp;
         if (!FindBlockPos(state, blockPos, nBlockSize+8, nHeight, block.GetBlockTime(), dbp != NULL))
-            return error("AcceptBlock() : FindBlockPos failed");
+            return error("AcceptBlock(): FindBlockPos failed");
         if (dbp == NULL)
             if (!WriteBlockToDisk(block, blockPos))
                 return state.Abort("Failed to write block");
         if (!ReceivedBlockTransactions(block, state, pindex, blockPos))
-            return error("AcceptBlock() : ReceivedBlockTransactions failed");
-    } catch(std::runtime_error &e) {
+            return error("AcceptBlock(): ReceivedBlockTransactions failed");
+    } catch (const std::runtime_error& e) {
         return state.Abort(std::string("System error: ") + e.what());
     }
 
     return true;
 }
 
-bool CBlockIndex::IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned int nRequired)
+static bool IsSuperMajority(int minVersion, const CBlockIndex* pstart, unsigned int nRequired)
 {
     unsigned int nToCheck = Params().ToCheckBlockUpgradeMajority();
     unsigned int nFound = 0;
@@ -2613,54 +2741,6 @@ bool CBlockIndex::IsSuperMajority(int minVersion, const CBlockIndex* pstart, uns
     return (nFound >= nRequired);
 }
 
-/** Turn the lowest '1' bit in the binary representation of a number into a '0'. */
-int static inline InvertLowestOne(int n) { return n & (n - 1); }
-
-/** Compute what height to jump back to with the CBlockIndex::pskip pointer. */
-int static inline GetSkipHeight(int height) {
-    if (height < 2)
-        return 0;
-
-    // Determine which height to jump back to. Any number strictly lower than height is acceptable,
-    // but the following expression seems to perform well in simulations (max 110 steps to go back
-    // up to 2**18 blocks).
-    return (height & 1) ? InvertLowestOne(InvertLowestOne(height - 1)) + 1 : InvertLowestOne(height);
-}
-
-CBlockIndex* CBlockIndex::GetAncestor(int height)
-{
-    if (height > nHeight || height < 0)
-        return NULL;
-
-    CBlockIndex* pindexWalk = this;
-    int heightWalk = nHeight;
-    while (heightWalk > height) {
-        int heightSkip = GetSkipHeight(heightWalk);
-        int heightSkipPrev = GetSkipHeight(heightWalk - 1);
-        if (heightSkip == height ||
-            (heightSkip > height && !(heightSkipPrev < heightSkip - 2 &&
-                                      heightSkipPrev >= height))) {
-            // Only follow pskip if pprev->pskip isn't better than pskip->pprev.
-            pindexWalk = pindexWalk->pskip;
-            heightWalk = heightSkip;
-        } else {
-            pindexWalk = pindexWalk->pprev;
-            heightWalk--;
-        }
-    }
-    return pindexWalk;
-}
-
-const CBlockIndex* CBlockIndex::GetAncestor(int height) const
-{
-    return const_cast<CBlockIndex*>(this)->GetAncestor(height);
-}
-
-void CBlockIndex::BuildSkip()
-{
-    if (pprev)
-        pskip = pprev->GetAncestor(GetSkipHeight(nHeight));
-}
 
 bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDiskBlockPos *dbp)
 {
@@ -2671,7 +2751,7 @@ bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDis
         LOCK(cs_main);
         MarkBlockAsReceived(pblock->GetHash());
         if (!checked) {
-            return error("%s : CheckBlock FAILED", __func__);
+            return error("%s: CheckBlock FAILED", __func__);
         }
 
         // Store to disk
@@ -2681,11 +2761,11 @@ bool ProcessNewBlock(CValidationState &state, CNode* pfrom, CBlock* pblock, CDis
             mapBlockSource[pindex->GetBlockHash()] = pfrom->GetId();
         }
         if (!ret)
-            return error("%s : AcceptBlock FAILED", __func__);
+            return error("%s: AcceptBlock FAILED", __func__);
     }
 
     if (!ActivateBestChain(state, pblock))
-        return error("%s : ActivateBestChain failed", __func__);
+        return error("%s: ActivateBestChain failed", __func__);
 
     return true;
 }
@@ -2721,159 +2801,6 @@ bool TestBlockValidity(CValidationState &state, const CBlock& block, CBlockIndex
 
 
 
-CMerkleBlock::CMerkleBlock(const CBlock& block, CBloomFilter& filter)
-{
-    header = block.GetBlockHeader();
-
-    vector<bool> vMatch;
-    vector<uint256> vHashes;
-
-    vMatch.reserve(block.vtx.size());
-    vHashes.reserve(block.vtx.size());
-
-    for (unsigned int i = 0; i < block.vtx.size(); i++)
-    {
-        const uint256& hash = block.vtx[i].GetHash();
-        if (filter.IsRelevantAndUpdate(block.vtx[i]))
-        {
-            vMatch.push_back(true);
-            vMatchedTxn.push_back(make_pair(i, hash));
-        }
-        else
-            vMatch.push_back(false);
-        vHashes.push_back(hash);
-    }
-
-    txn = CPartialMerkleTree(vHashes, vMatch);
-}
-
-
-
-
-
-
-
-
-uint256 CPartialMerkleTree::CalcHash(int height, unsigned int pos, const std::vector<uint256> &vTxid) {
-    if (height == 0) {
-        // hash at height 0 is the txids themself
-        return vTxid[pos];
-    } else {
-        // calculate left hash
-        uint256 left = CalcHash(height-1, pos*2, vTxid), right;
-        // calculate right hash if not beyond the end of the array - copy left hash otherwise1
-        if (pos*2+1 < CalcTreeWidth(height-1))
-            right = CalcHash(height-1, pos*2+1, vTxid);
-        else
-            right = left;
-        // combine subhashes
-        return Hash(BEGIN(left), END(left), BEGIN(right), END(right));
-    }
-}
-
-void CPartialMerkleTree::TraverseAndBuild(int height, unsigned int pos, const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch) {
-    // determine whether this node is the parent of at least one matched txid
-    bool fParentOfMatch = false;
-    for (unsigned int p = pos << height; p < (pos+1) << height && p < nTransactions; p++)
-        fParentOfMatch |= vMatch[p];
-    // store as flag bit
-    vBits.push_back(fParentOfMatch);
-    if (height==0 || !fParentOfMatch) {
-        // if at height 0, or nothing interesting below, store hash and stop
-        vHash.push_back(CalcHash(height, pos, vTxid));
-    } else {
-        // otherwise, don't store any hash, but descend into the subtrees
-        TraverseAndBuild(height-1, pos*2, vTxid, vMatch);
-        if (pos*2+1 < CalcTreeWidth(height-1))
-            TraverseAndBuild(height-1, pos*2+1, vTxid, vMatch);
-    }
-}
-
-uint256 CPartialMerkleTree::TraverseAndExtract(int height, unsigned int pos, unsigned int &nBitsUsed, unsigned int &nHashUsed, std::vector<uint256> &vMatch) {
-    if (nBitsUsed >= vBits.size()) {
-        // overflowed the bits array - failure
-        fBad = true;
-        return 0;
-    }
-    bool fParentOfMatch = vBits[nBitsUsed++];
-    if (height==0 || !fParentOfMatch) {
-        // if at height 0, or nothing interesting below, use stored hash and do not descend
-        if (nHashUsed >= vHash.size()) {
-            // overflowed the hash array - failure
-            fBad = true;
-            return 0;
-        }
-        const uint256 &hash = vHash[nHashUsed++];
-        if (height==0 && fParentOfMatch) // in case of height 0, we have a matched txid
-            vMatch.push_back(hash);
-        return hash;
-    } else {
-        // otherwise, descend into the subtrees to extract matched txids and hashes
-        uint256 left = TraverseAndExtract(height-1, pos*2, nBitsUsed, nHashUsed, vMatch), right;
-        if (pos*2+1 < CalcTreeWidth(height-1))
-            right = TraverseAndExtract(height-1, pos*2+1, nBitsUsed, nHashUsed, vMatch);
-        else
-            right = left;
-        // and combine them before returning
-        return Hash(BEGIN(left), END(left), BEGIN(right), END(right));
-    }
-}
-
-CPartialMerkleTree::CPartialMerkleTree(const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch) : nTransactions(vTxid.size()), fBad(false) {
-    // reset state
-    vBits.clear();
-    vHash.clear();
-
-    // calculate height of tree
-    int nHeight = 0;
-    while (CalcTreeWidth(nHeight) > 1)
-        nHeight++;
-
-    // traverse the partial tree
-    TraverseAndBuild(nHeight, 0, vTxid, vMatch);
-}
-
-CPartialMerkleTree::CPartialMerkleTree() : nTransactions(0), fBad(true) {}
-
-uint256 CPartialMerkleTree::ExtractMatches(std::vector<uint256> &vMatch) {
-    vMatch.clear();
-    // An empty set will not work
-    if (nTransactions == 0)
-        return 0;
-    // check for excessively high numbers of transactions
-    if (nTransactions > MAX_BLOCK_SIZE / 60) // 60 is the lower bound for the size of a serialized CTransaction
-        return 0;
-    // there can never be more hashes provided than one for every txid
-    if (vHash.size() > nTransactions)
-        return 0;
-    // there must be at least one bit per node in the partial tree, and at least one node per hash
-    if (vBits.size() < vHash.size())
-        return 0;
-    // calculate height of tree
-    int nHeight = 0;
-    while (CalcTreeWidth(nHeight) > 1)
-        nHeight++;
-    // traverse the partial tree
-    unsigned int nBitsUsed = 0, nHashUsed = 0;
-    uint256 hashMerkleRoot = TraverseAndExtract(nHeight, 0, nBitsUsed, nHashUsed, vMatch);
-    // verify that no problems occured during the tree traversal
-    if (fBad)
-        return 0;
-    // verify that all bits were consumed (except for the padding caused by serializing it as a byte sequence)
-    if ((nBitsUsed+7)/8 != (vBits.size()+7)/8)
-        return 0;
-    // verify that all hashes were consumed
-    if (nHashUsed != vHash.size())
-        return 0;
-    return hashMerkleRoot;
-}
-
-
-
-
-
-
-
 bool AbortNode(const std::string &strMessage, const std::string &userMessage) {
     strMiscWarning = strMessage;
     LogPrintf("*** %s\n", strMessage);
@@ -2886,7 +2813,7 @@ bool AbortNode(const std::string &strMessage, const std::string &userMessage) {
 
 bool CheckDiskSpace(uint64_t nAdditionalBytes)
 {
-    uint64_t nFreeBytesAvailable = filesystem::space(GetDataDir()).available;
+    uint64_t nFreeBytesAvailable = boost::filesystem::space(GetDataDir()).available;
 
     // Check for nMinDiskSpace bytes (currently 50MB)
     if (nFreeBytesAvailable < nMinDiskSpace + nAdditionalBytes)
@@ -2933,7 +2860,7 @@ boost::filesystem::path GetBlockPosFilename(const CDiskBlockPos &pos, const char
 
 CBlockIndex * InsertBlockIndex(uint256 hash)
 {
-    if (hash == 0)
+    if (hash.IsNull())
         return NULL;
 
     // Return existing
@@ -2944,7 +2871,7 @@ CBlockIndex * InsertBlockIndex(uint256 hash)
     // Create new
     CBlockIndex* pindexNew = new CBlockIndex();
     if (!pindexNew)
-        throw runtime_error("LoadBlockIndex() : new CBlockIndex failed");
+        throw runtime_error("LoadBlockIndex(): new CBlockIndex failed");
     mi = mapBlockIndex.insert(make_pair(hash, pindexNew)).first;
     pindexNew->phashBlock = &((*mi).first);
 
@@ -3090,24 +3017,24 @@ bool CVerifyDB::VerifyDB(CCoinsView *coinsview, int nCheckLevel, int nCheckDepth
         CBlock block;
         // check level 0: read from disk
         if (!ReadBlockFromDisk(block, pindex))
-            return error("VerifyDB() : *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
+            return error("VerifyDB(): *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
         // check level 1: verify block validity
         if (nCheckLevel >= 1 && !CheckBlock(block, state))
-            return error("VerifyDB() : *** found bad block at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
+            return error("VerifyDB(): *** found bad block at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
         // check level 2: verify undo validity
         if (nCheckLevel >= 2 && pindex) {
             CBlockUndo undo;
             CDiskBlockPos pos = pindex->GetUndoPos();
             if (!pos.IsNull()) {
-                if (!undo.ReadFromDisk(pos, pindex->pprev->GetBlockHash()))
-                    return error("VerifyDB() : *** found bad undo data at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
+                if (!UndoReadFromDisk(undo, pos, pindex->pprev->GetBlockHash()))
+                    return error("VerifyDB(): *** found bad undo data at %d, hash=%s\n", pindex->nHeight, pindex->GetBlockHash().ToString());
             }
         }
         // check level 3: check for inconsistencies during memory-only disconnect of tip blocks
         if (nCheckLevel >= 3 && pindex == pindexState && (coins.GetCacheSize() + pcoinsTip->GetCacheSize()) <= nCoinCacheSize) {
             bool fClean = true;
             if (!DisconnectBlock(block, state, pindex, coins, &fClean))
-                return error("VerifyDB() : *** irrecoverable inconsistency in block data at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
+                return error("VerifyDB(): *** irrecoverable inconsistency in block data at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
             pindexState = pindex->pprev;
             if (!fClean) {
                 nGoodTransactions = 0;
@@ -3115,9 +3042,11 @@ bool CVerifyDB::VerifyDB(CCoinsView *coinsview, int nCheckLevel, int nCheckDepth
             } else
                 nGoodTransactions += block.vtx.size();
         }
+        if (ShutdownRequested())
+            return true;
     }
     if (pindexFailure)
-        return error("VerifyDB() : *** coin database inconsistencies found (last %i blocks, %i good transactions before that)\n", chainActive.Height() - pindexFailure->nHeight + 1, nGoodTransactions);
+        return error("VerifyDB(): *** coin database inconsistencies found (last %i blocks, %i good transactions before that)\n", chainActive.Height() - pindexFailure->nHeight + 1, nGoodTransactions);
 
     // check level 4: try reconnecting blocks
     if (nCheckLevel >= 4) {
@@ -3128,9 +3057,9 @@ bool CVerifyDB::VerifyDB(CCoinsView *coinsview, int nCheckLevel, int nCheckDepth
             pindex = chainActive.Next(pindex);
             CBlock block;
             if (!ReadBlockFromDisk(block, pindex))
-                return error("VerifyDB() : *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
+                return error("VerifyDB(): *** ReadBlockFromDisk failed at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
             if (!ConnectBlock(block, state, pindex, coins))
-                return error("VerifyDB() : *** found unconnectable block at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
+                return error("VerifyDB(): *** found unconnectable block at %d, hash=%s", pindex->nHeight, pindex->GetBlockHash().ToString());
         }
     }
 
@@ -3176,18 +3105,18 @@ bool InitBlockIndex() {
             CDiskBlockPos blockPos;
             CValidationState state;
             if (!FindBlockPos(state, blockPos, nBlockSize+8, 0, block.GetBlockTime()))
-                return error("LoadBlockIndex() : FindBlockPos failed");
+                return error("LoadBlockIndex(): FindBlockPos failed");
             if (!WriteBlockToDisk(block, blockPos))
-                return error("LoadBlockIndex() : writing genesis block to disk failed");
+                return error("LoadBlockIndex(): writing genesis block to disk failed");
             CBlockIndex *pindex = AddToBlockIndex(block);
             if (!ReceivedBlockTransactions(block, state, pindex, blockPos))
-                return error("LoadBlockIndex() : genesis block not accepted");
+                return error("LoadBlockIndex(): genesis block not accepted");
             if (!ActivateBestChain(state, &block))
-                return error("LoadBlockIndex() : genesis block cannot be activated");
-            // Force a chainstate write so that when we VerifyDB in a moment, it doesnt check stale data
+                return error("LoadBlockIndex(): genesis block cannot be activated");
+            // Force a chainstate write so that when we VerifyDB in a moment, it doesn't check stale data
             return FlushStateToDisk(state, FLUSH_STATE_ALWAYS);
-        } catch(std::runtime_error &e) {
-            return error("LoadBlockIndex() : failed to initialize block database: %s", e.what());
+        } catch (const std::runtime_error& e) {
+            return error("LoadBlockIndex(): failed to initialize block database: %s", e.what());
         }
     }
 
@@ -3226,7 +3155,7 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp)
                 blkdat >> nSize;
                 if (nSize < 80 || nSize > MAX_BLOCK_SIZE)
                     continue;
-            } catch (const std::exception &) {
+            } catch (const std::exception&) {
                 // no valid block header found; don't complain
                 break;
             }
@@ -3286,11 +3215,11 @@ bool LoadExternalBlockFile(FILE* fileIn, CDiskBlockPos *dbp)
                         mapBlocksUnknownParent.erase(it);
                     }
                 }
-            } catch (std::exception &e) {
-                LogPrintf("%s : Deserialize or I/O error - %s", __func__, e.what());
+            } catch (const std::exception& e) {
+                LogPrintf("%s: Deserialize or I/O error - %s", __func__, e.what());
             }
         }
-    } catch(std::runtime_error &e) {
+    } catch (const std::runtime_error& e) {
         AbortNode(std::string("System error: ") + e.what());
     }
     if (nLoaded > 0)
@@ -3351,7 +3280,7 @@ string GetWarnings(string strFor)
         return strStatusBar;
     else if (strFor == "rpc")
         return strRPC;
-    assert(!"GetWarnings() : invalid parameter");
+    assert(!"GetWarnings(): invalid parameter");
     return "error";
 }
 
@@ -3465,7 +3394,7 @@ void static ProcessGetData(CNode* pfrom)
                         vector<CInv> vInv;
                         vInv.push_back(CInv(MSG_BLOCK, chainActive.Tip()->GetBlockHash()));
                         pfrom->PushMessage("inv", vInv);
-                        pfrom->hashContinue = 0;
+                        pfrom->hashContinue.SetNull();
                     }
                 }
             }
@@ -3646,7 +3575,9 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                   pfrom->nStartingHeight, addrMe.ToString(), pfrom->id,
                   remoteAddr);
 
-        AddTimeData(pfrom->addr, nTime);
+        int64_t nTimeOffset = nTime - GetTime();
+        pfrom->nTimeOffset = nTimeOffset;
+        AddTimeData(pfrom->addr, nTimeOffset);
     }
 
 
@@ -3698,10 +3629,10 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                     // Use deterministic randomness to send to the same nodes for 24 hours
                     // at a time so the setAddrKnowns of the chosen nodes prevent repeats
                     static uint256 hashSalt;
-                    if (hashSalt == 0)
+                    if (hashSalt.IsNull())
                         hashSalt = GetRandHash();
                     uint64_t hashAddr = addr.GetHash();
-                    uint256 hashRand = hashSalt ^ (hashAddr<<32) ^ ((GetTime()+hashAddr)/(24*60*60));
+                    uint256 hashRand = ArithToUint256(UintToArith256(hashSalt) ^ (hashAddr<<32) ^ ((GetTime()+hashAddr)/(24*60*60)));
                     hashRand = Hash(BEGIN(hashRand), END(hashRand));
                     multimap<uint256, CNode*> mapMix;
                     BOOST_FOREACH(CNode* pnode, vNodes)
@@ -3710,7 +3641,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                             continue;
                         unsigned int nPointer;
                         memcpy(&nPointer, &pnode, sizeof(nPointer));
-                        uint256 hashKey = hashRand ^ nPointer;
+                        uint256 hashKey = ArithToUint256(UintToArith256(hashRand) ^ nPointer);
                         hashKey = Hash(BEGIN(hashKey), END(hashKey));
                         mapMix.insert(make_pair(hashKey, pnode));
                     }
@@ -3770,7 +3701,9 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                     // doing this will result in the received block being rejected as an orphan in case it is
                     // not a direct successor.
                     pfrom->PushMessage("getheaders", chainActive.GetLocator(pindexBestHeader), inv.hash);
-                    if (chainActive.Tip()->GetBlockTime() > GetAdjustedTime() - Params().TargetSpacing() * 20) {
+                    CNodeState *nodestate = State(pfrom->GetId());
+                    if (chainActive.Tip()->GetBlockTime() > GetAdjustedTime() - Params().TargetSpacing() * 20 &&
+                        nodestate->nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) {
                         vToFetch.push_back(inv);
                         // Mark block as in flight already, even though the actual "getdata" message only goes out
                         // later (within the same cs_main lock, though).
@@ -3830,7 +3763,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
         if (pindex)
             pindex = chainActive.Next(pindex);
         int nLimit = 500;
-        LogPrint("net", "getblocks %d to %s limit %d from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop==uint256(0) ? "end" : hashStop.ToString(), nLimit, pfrom->id);
+        LogPrint("net", "getblocks %d to %s limit %d from peer=%d\n", (pindex ? pindex->nHeight : -1), hashStop.IsNull() ? "end" : hashStop.ToString(), nLimit, pfrom->id);
         for (; pindex; pindex = chainActive.Next(pindex))
         {
             if (pindex->GetBlockHash() == hashStop)
@@ -3914,7 +3847,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             vWorkQueue.push_back(inv.hash);
             vEraseQueue.push_back(inv.hash);
 
-            LogPrint("mempool", "AcceptToMemoryPool: peer=%d %s : accepted %s (poolsz %u)\n",
+            LogPrint("mempool", "AcceptToMemoryPool: peer=%d %s: accepted %s (poolsz %u)\n",
                 pfrom->id, pfrom->cleanSubVer,
                 tx.GetHash().ToString(),
                 mempool.mapTx.size());
@@ -4046,7 +3979,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
             // TODO: optimize: if pindexLast is an ancestor of chainActive.Tip or pindexBestHeader, continue
             // from there instead.
             LogPrint("net", "more getheaders (%d) to end to peer=%d (startheight:%d)\n", pindexLast->nHeight, pfrom->id, pfrom->nStartingHeight);
-            pfrom->PushMessage("getheaders", chainActive.GetLocator(pindexLast), uint256(0));
+            pfrom->PushMessage("getheaders", chainActive.GetLocator(pindexLast), uint256());
         }
     }
 
@@ -4284,7 +4217,7 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
                     ss << ": hash " << hash.ToString();
                 }
                 LogPrint("net", "Reject %s\n", SanitizeString(ss.str()));
-            } catch (std::ios_base::failure& e) {
+            } catch (const std::ios_base::failure&) {
                 // Avoid feedback loops by preventing reject messages from triggering a new reject message.
                 LogPrint("net", "Unparseable reject message received\n");
             }
@@ -4376,7 +4309,7 @@ bool ProcessMessages(CNode* pfrom)
         memcpy(&nChecksum, &hash, sizeof(nChecksum));
         if (nChecksum != hdr.nChecksum)
         {
-            LogPrintf("ProcessMessages(%s, %u bytes) : CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
+            LogPrintf("ProcessMessages(%s, %u bytes): CHECKSUM ERROR nChecksum=%08x hdr.nChecksum=%08x\n",
                strCommand, nMessageSize, nChecksum, hdr.nChecksum);
             continue;
         }
@@ -4388,28 +4321,28 @@ bool ProcessMessages(CNode* pfrom)
             fRet = ProcessMessage(pfrom, strCommand, vRecv, msg.nTime);
             boost::this_thread::interruption_point();
         }
-        catch (std::ios_base::failure& e)
+        catch (const std::ios_base::failure& e)
         {
             pfrom->PushMessage("reject", strCommand, REJECT_MALFORMED, string("error parsing message"));
             if (strstr(e.what(), "end of data"))
             {
                 // Allow exceptions from under-length message on vRecv
-                LogPrintf("ProcessMessages(%s, %u bytes) : Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand, nMessageSize, e.what());
+                LogPrintf("ProcessMessages(%s, %u bytes): Exception '%s' caught, normally caused by a message being shorter than its stated length\n", strCommand, nMessageSize, e.what());
             }
             else if (strstr(e.what(), "size too large"))
             {
                 // Allow exceptions from over-long size
-                LogPrintf("ProcessMessages(%s, %u bytes) : Exception '%s' caught\n", strCommand, nMessageSize, e.what());
+                LogPrintf("ProcessMessages(%s, %u bytes): Exception '%s' caught\n", strCommand, nMessageSize, e.what());
             }
             else
             {
                 PrintExceptionContinue(&e, "ProcessMessages()");
             }
         }
-        catch (boost::thread_interrupted) {
+        catch (const boost::thread_interrupted&) {
             throw;
         }
-        catch (std::exception& e) {
+        catch (const std::exception& e) {
             PrintExceptionContinue(&e, "ProcessMessages()");
         } catch (...) {
             PrintExceptionContinue(NULL, "ProcessMessages()");
@@ -4544,7 +4477,7 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
                 nSyncStarted++;
                 CBlockIndex *pindexStart = pindexBestHeader->pprev ? pindexBestHeader->pprev : pindexBestHeader;
                 LogPrint("net", "initial getheaders (%d) to peer=%d (startheight:%d)\n", pindexStart->nHeight, pto->id, pto->nStartingHeight);
-                pto->PushMessage("getheaders", chainActive.GetLocator(pindexStart), uint256(0));
+                pto->PushMessage("getheaders", chainActive.GetLocator(pindexStart), uint256());
             }
         }
 
@@ -4575,11 +4508,11 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
                 {
                     // 1/4 of tx invs blast to all immediately
                     static uint256 hashSalt;
-                    if (hashSalt == 0)
+                    if (hashSalt.IsNull())
                         hashSalt = GetRandHash();
-                    uint256 hashRand = inv.hash ^ hashSalt;
+                    uint256 hashRand = ArithToUint256(UintToArith256(inv.hash) ^ UintToArith256(hashSalt));
                     hashRand = Hash(BEGIN(hashRand), END(hashRand));
-                    bool fTrickleWait = ((hashRand & 3) != 0);
+                    bool fTrickleWait = ((UintToArith256(hashRand) & 3) != 0);
 
                     if (fTrickleWait)
                     {
@@ -4613,6 +4546,15 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
             LogPrintf("Peer=%d is stalling block download, disconnecting\n", pto->id);
             pto->fDisconnect = true;
         }
+        // In case there is a block that has been in flight from this peer for (2 + 0.5 * N) times the block interval
+        // (with N the number of validated blocks that were in flight at the time it was requested), disconnect due to
+        // timeout. We compensate for in-flight blocks to prevent killing off peers due to our own downstream link
+        // being saturated. We only count validated in-flight blocks so peers can't advertize nonexisting block hashes
+        // to unreasonably increase our timeout.
+        if (!pto->fDisconnect && state.vBlocksInFlight.size() > 0 && state.vBlocksInFlight.front().nTime < nNow - 500000 * Params().TargetSpacing() * (4 + state.vBlocksInFlight.front().nValidatedQueuedBefore)) {
+            LogPrintf("Timeout downloading block %s from peer=%d, disconnecting\n", state.vBlocksInFlight.front().hash.ToString(), pto->id);
+            pto->fDisconnect = true;
+        }
 
         //
         // Message: getdata (blocks)
@@ -4662,61 +4604,6 @@ bool SendMessages(CNode* pto, bool fSendTrickle)
     return true;
 }
 
-
-bool CBlockUndo::WriteToDisk(CDiskBlockPos &pos, const uint256 &hashBlock)
-{
-    // Open history file to append
-    CAutoFile fileout(OpenUndoFile(pos), SER_DISK, CLIENT_VERSION);
-    if (fileout.IsNull())
-        return error("CBlockUndo::WriteToDisk : OpenUndoFile failed");
-
-    // Write index header
-    unsigned int nSize = fileout.GetSerializeSize(*this);
-    fileout << FLATDATA(Params().MessageStart()) << nSize;
-
-    // Write undo data
-    long fileOutPos = ftell(fileout.Get());
-    if (fileOutPos < 0)
-        return error("CBlockUndo::WriteToDisk : ftell failed");
-    pos.nPos = (unsigned int)fileOutPos;
-    fileout << *this;
-
-    // calculate & write checksum
-    CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION);
-    hasher << hashBlock;
-    hasher << *this;
-    fileout << hasher.GetHash();
-
-    return true;
-}
-
-bool CBlockUndo::ReadFromDisk(const CDiskBlockPos &pos, const uint256 &hashBlock)
-{
-    // Open history file to read
-    CAutoFile filein(OpenUndoFile(pos, true), SER_DISK, CLIENT_VERSION);
-    if (filein.IsNull())
-        return error("CBlockUndo::ReadFromDisk : OpenBlockFile failed");
-
-    // Read block
-    uint256 hashChecksum;
-    try {
-        filein >> *this;
-        filein >> hashChecksum;
-    }
-    catch (std::exception &e) {
-        return error("%s : Deserialize or I/O error - %s", __func__, e.what());
-    }
-
-    // Verify checksum
-    CHashWriter hasher(SER_GETHASH, PROTOCOL_VERSION);
-    hasher << hashBlock;
-    hasher << *this;
-    if (hashChecksum != hasher.GetHash())
-        return error("CBlockUndo::ReadFromDisk : Checksum mismatch");
-
-    return true;
-}
-
  std::string CBlockFileInfo::ToString() const {
      return strprintf("CBlockFileInfo(blocks=%u, size=%u, heights=%u...%u, time=%s...%s)", nBlocks, nSize, nHeightFirst, nHeightLast, DateTimeStrFormat("%Y-%m-%d", nTimeFirst), DateTimeStrFormat("%Y-%m-%d", nTimeLast));
  }
diff --git a/src/main.h b/src/main.h
index f3d30fafb3..936cd43e99 100644
--- a/src/main.h
+++ b/src/main.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -25,7 +25,6 @@
 #include "tinyformat.h"
 #include "txmempool.h"
 #include "uint256.h"
-#include "undo.h"
 
 #include <algorithm>
 #include <exception>
@@ -46,11 +45,8 @@ class CScriptCheck;
 class CValidationInterface;
 class CValidationState;
 
-struct CBlockTemplate;
 struct CNodeStateStats;
 
-/** The maximum allowed size for a serialized block, in bytes (network rule) */
-static const unsigned int MAX_BLOCK_SIZE = 1000000;
 /** Default for -blockmaxsize and -blockminsize, which control the range of sizes the mining code will create **/
 static const unsigned int DEFAULT_BLOCK_MAX_SIZE = 750000;
 static const unsigned int DEFAULT_BLOCK_MIN_SIZE = 0;
@@ -63,11 +59,9 @@ static const unsigned int MAX_BLOCK_SIGOPS = MAX_BLOCK_SIZE/50;
 /** Maximum number of signature check operations in an IsStandard() P2SH script */
 static const unsigned int MAX_P2SH_SIGOPS = 15;
 /** The maximum number of sigops we're willing to relay/mine in a single tx */
-static const unsigned int MAX_TX_SIGOPS = MAX_BLOCK_SIGOPS/5;
+static const unsigned int MAX_STANDARD_TX_SIGOPS = MAX_BLOCK_SIGOPS/5;
 /** Default for -maxorphantx, maximum number of orphan transactions kept in memory */
 static const unsigned int DEFAULT_MAX_ORPHAN_TRANSACTIONS = 100;
-/** Default for -maxorphanblocks, maximum number of orphan blocks kept in memory */
-static const unsigned int DEFAULT_MAX_ORPHAN_BLOCKS = 750;
 /** The maximum size of a blk?????.dat file (since 0.8) */
 static const unsigned int MAX_BLOCKFILE_SIZE = 0x8000000; // 128 MiB
 /** The pre-allocation chunk size for blk?????.dat files (since 0.8) */
@@ -111,7 +105,7 @@ static const unsigned char REJECT_CHECKPOINT = 0x43;
 
 struct BlockHasher
 {
-    size_t operator()(const uint256& hash) const { return hash.GetLow64(); }
+    size_t operator()(const uint256& hash) const { return hash.GetCheapHash(); }
 };
 
 extern CScript COINBASE_FLAGS;
@@ -211,7 +205,7 @@ void FlushStateToDisk();
 
 /** (try to) add transaction to memory pool **/
 bool AcceptToMemoryPool(CTxMemPool& pool, CValidationState &state, const CTransaction &tx, bool fLimitFree,
-                        bool* pfMissingInputs, bool fRejectInsaneFee=false);
+                        bool* pfMissingInputs, bool fRejectAbsurdFee=false);
 
 
 struct CNodeStateStats {
@@ -294,7 +288,7 @@ bool CheckInputs(const CTransaction& tx, CValidationState &state, const CCoinsVi
                  unsigned int flags, bool cacheStore, std::vector<CScriptCheck> *pvChecks = NULL);
 
 /** Apply the effects of this transaction on the UTXO set represented by view */
-void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, CTxUndo &txundo, int nHeight);
+void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, int nHeight);
 
 /** Context-independent validity checks */
 bool CheckTransaction(const CTransaction& tx, CValidationState& state);
@@ -306,24 +300,6 @@ bool IsStandardTx(const CTransaction& tx, std::string& reason);
 
 bool IsFinalTx(const CTransaction &tx, int nBlockHeight = 0, int64_t nBlockTime = 0);
 
-/** Undo information for a CBlock */
-class CBlockUndo
-{
-public:
-    std::vector<CTxUndo> vtxundo; // for all but the coinbase
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        READWRITE(vtxundo);
-    }
-
-    bool WriteToDisk(CDiskBlockPos &pos, const uint256 &hashBlock);
-    bool ReadFromDisk(const CDiskBlockPos &pos, const uint256 &hashBlock);
-};
-
-
 /** 
  * Closure representing one script verification
  * Note that this stores references to the spending transaction 
@@ -358,110 +334,6 @@ public:
     ScriptError GetScriptError() const { return error; }
 };
 
-/** Data structure that represents a partial merkle tree.
- *
- * It represents a subset of the txid's of a known block, in a way that
- * allows recovery of the list of txid's and the merkle root, in an
- * authenticated way.
- *
- * The encoding works as follows: we traverse the tree in depth-first order,
- * storing a bit for each traversed node, signifying whether the node is the
- * parent of at least one matched leaf txid (or a matched txid itself). In
- * case we are at the leaf level, or this bit is 0, its merkle node hash is
- * stored, and its children are not explorer further. Otherwise, no hash is
- * stored, but we recurse into both (or the only) child branch. During
- * decoding, the same depth-first traversal is performed, consuming bits and
- * hashes as they written during encoding.
- *
- * The serialization is fixed and provides a hard guarantee about the
- * encoded size:
- *
- *   SIZE <= 10 + ceil(32.25*N)
- *
- * Where N represents the number of leaf nodes of the partial tree. N itself
- * is bounded by:
- *
- *   N <= total_transactions
- *   N <= 1 + matched_transactions*tree_height
- *
- * The serialization format:
- *  - uint32     total_transactions (4 bytes)
- *  - varint     number of hashes   (1-3 bytes)
- *  - uint256[]  hashes in depth-first order (<= 32*N bytes)
- *  - varint     number of bytes of flag bits (1-3 bytes)
- *  - byte[]     flag bits, packed per 8 in a byte, least significant bit first (<= 2*N-1 bits)
- * The size constraints follow from this.
- */
-class CPartialMerkleTree
-{
-protected:
-    /** the total number of transactions in the block */
-    unsigned int nTransactions;
-
-    /** node-is-parent-of-matched-txid bits */
-    std::vector<bool> vBits;
-
-    /** txids and internal hashes */
-    std::vector<uint256> vHash;
-
-    /** flag set when encountering invalid data */
-    bool fBad;
-
-    /** helper function to efficiently calculate the number of nodes at given height in the merkle tree */
-    unsigned int CalcTreeWidth(int height) {
-        return (nTransactions+(1 << height)-1) >> height;
-    }
-
-    /** calculate the hash of a node in the merkle tree (at leaf level: the txid's themselves) */
-    uint256 CalcHash(int height, unsigned int pos, const std::vector<uint256> &vTxid);
-
-    /** recursive function that traverses tree nodes, storing the data as bits and hashes */
-    void TraverseAndBuild(int height, unsigned int pos, const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch);
-
-    /**
-     * recursive function that traverses tree nodes, consuming the bits and hashes produced by TraverseAndBuild.
-     * it returns the hash of the respective node.
-     */
-    uint256 TraverseAndExtract(int height, unsigned int pos, unsigned int &nBitsUsed, unsigned int &nHashUsed, std::vector<uint256> &vMatch);
-
-public:
-
-    /** serialization implementation */
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        READWRITE(nTransactions);
-        READWRITE(vHash);
-        std::vector<unsigned char> vBytes;
-        if (ser_action.ForRead()) {
-            READWRITE(vBytes);
-            CPartialMerkleTree &us = *(const_cast<CPartialMerkleTree*>(this));
-            us.vBits.resize(vBytes.size() * 8);
-            for (unsigned int p = 0; p < us.vBits.size(); p++)
-                us.vBits[p] = (vBytes[p / 8] & (1 << (p % 8))) != 0;
-            us.fBad = false;
-        } else {
-            vBytes.resize((vBits.size()+7)/8);
-            for (unsigned int p = 0; p < vBits.size(); p++)
-                vBytes[p / 8] |= vBits[p] << (p % 8);
-            READWRITE(vBytes);
-        }
-    }
-
-    /** Construct a partial merkle tree from a list of transaction id's, and a mask that selects a subset of them */
-    CPartialMerkleTree(const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch);
-
-    CPartialMerkleTree();
-
-    /**
-     * extract the matching txid's represented by this partial merkle tree.
-     * returns the merkle root, or 0 in case of failure
-     */
-    uint256 ExtractMatches(std::vector<uint256> &vMatch);
-};
-
-
 
 /** Functions for disk access for blocks */
 bool WriteBlockToDisk(CBlock& block, CDiskBlockPos& pos);
@@ -640,49 +512,6 @@ extern CCoinsViewCache *pcoinsTip;
 /** Global variable that points to the active block tree (protected by cs_main) */
 extern CBlockTreeDB *pblocktree;
 
-struct CBlockTemplate
-{
-    CBlock block;
-    std::vector<CAmount> vTxFees;
-    std::vector<int64_t> vTxSigOps;
-};
-
-
-
-
-
-
-/** 
- * Used to relay blocks as header + vector<merkle branch>
- * to filtered nodes.
- */
-class CMerkleBlock
-{
-public:
-    /** Public only for unit testing */
-    CBlockHeader header;
-    CPartialMerkleTree txn;
-
-public:
-    /** Public only for unit testing and relay testing (not relayed) */
-    std::vector<std::pair<unsigned int, uint256> > vMatchedTxn;
-
-    /**
-     * Create from a CBlock, filtering transactions according to filter
-     * Note that this will call IsRelevantAndUpdate on the filter for each transaction,
-     * thus the filter will likely be modified.
-     */
-    CMerkleBlock(const CBlock& block, CBloomFilter& filter);
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        READWRITE(header);
-        READWRITE(txn);
-    }
-};
-
 
 class CValidationInterface {
 protected:
diff --git a/src/merkleblock.cpp b/src/merkleblock.cpp
new file mode 100644
index 0000000000..b51b002b95
--- /dev/null
+++ b/src/merkleblock.cpp
@@ -0,0 +1,158 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "merkleblock.h"
+
+#include "hash.h"
+#include "primitives/block.h" // for MAX_BLOCK_SIZE
+#include "utilstrencodings.h"
+
+using namespace std;
+
+CMerkleBlock::CMerkleBlock(const CBlock& block, CBloomFilter& filter)
+{
+    header = block.GetBlockHeader();
+
+    vector<bool> vMatch;
+    vector<uint256> vHashes;
+
+    vMatch.reserve(block.vtx.size());
+    vHashes.reserve(block.vtx.size());
+
+    for (unsigned int i = 0; i < block.vtx.size(); i++)
+    {
+        const uint256& hash = block.vtx[i].GetHash();
+        if (filter.IsRelevantAndUpdate(block.vtx[i]))
+        {
+            vMatch.push_back(true);
+            vMatchedTxn.push_back(make_pair(i, hash));
+        }
+        else
+            vMatch.push_back(false);
+        vHashes.push_back(hash);
+    }
+
+    txn = CPartialMerkleTree(vHashes, vMatch);
+}
+
+uint256 CPartialMerkleTree::CalcHash(int height, unsigned int pos, const std::vector<uint256> &vTxid) {
+    if (height == 0) {
+        // hash at height 0 is the txids themself
+        return vTxid[pos];
+    } else {
+        // calculate left hash
+        uint256 left = CalcHash(height-1, pos*2, vTxid), right;
+        // calculate right hash if not beyond the end of the array - copy left hash otherwise1
+        if (pos*2+1 < CalcTreeWidth(height-1))
+            right = CalcHash(height-1, pos*2+1, vTxid);
+        else
+            right = left;
+        // combine subhashes
+        return Hash(BEGIN(left), END(left), BEGIN(right), END(right));
+    }
+}
+
+void CPartialMerkleTree::TraverseAndBuild(int height, unsigned int pos, const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch) {
+    // determine whether this node is the parent of at least one matched txid
+    bool fParentOfMatch = false;
+    for (unsigned int p = pos << height; p < (pos+1) << height && p < nTransactions; p++)
+        fParentOfMatch |= vMatch[p];
+    // store as flag bit
+    vBits.push_back(fParentOfMatch);
+    if (height==0 || !fParentOfMatch) {
+        // if at height 0, or nothing interesting below, store hash and stop
+        vHash.push_back(CalcHash(height, pos, vTxid));
+    } else {
+        // otherwise, don't store any hash, but descend into the subtrees
+        TraverseAndBuild(height-1, pos*2, vTxid, vMatch);
+        if (pos*2+1 < CalcTreeWidth(height-1))
+            TraverseAndBuild(height-1, pos*2+1, vTxid, vMatch);
+    }
+}
+
+uint256 CPartialMerkleTree::TraverseAndExtract(int height, unsigned int pos, unsigned int &nBitsUsed, unsigned int &nHashUsed, std::vector<uint256> &vMatch) {
+    if (nBitsUsed >= vBits.size()) {
+        // overflowed the bits array - failure
+        fBad = true;
+        return uint256();
+    }
+    bool fParentOfMatch = vBits[nBitsUsed++];
+    if (height==0 || !fParentOfMatch) {
+        // if at height 0, or nothing interesting below, use stored hash and do not descend
+        if (nHashUsed >= vHash.size()) {
+            // overflowed the hash array - failure
+            fBad = true;
+            return uint256();
+        }
+        const uint256 &hash = vHash[nHashUsed++];
+        if (height==0 && fParentOfMatch) // in case of height 0, we have a matched txid
+            vMatch.push_back(hash);
+        return hash;
+    } else {
+        // otherwise, descend into the subtrees to extract matched txids and hashes
+        uint256 left = TraverseAndExtract(height-1, pos*2, nBitsUsed, nHashUsed, vMatch), right;
+        if (pos*2+1 < CalcTreeWidth(height-1)) {
+            right = TraverseAndExtract(height-1, pos*2+1, nBitsUsed, nHashUsed, vMatch);
+            if (right == left) {
+                // If the left and right branch should never be identical as the transaction
+                // hashes covered by them must be unique.
+                fBad = true;
+            }
+        } else {
+            right = left;
+        }
+        // and combine them before returning
+        return Hash(BEGIN(left), END(left), BEGIN(right), END(right));
+    }
+}
+
+CPartialMerkleTree::CPartialMerkleTree(const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch) : nTransactions(vTxid.size()), fBad(false) {
+    // reset state
+    vBits.clear();
+    vHash.clear();
+
+    // calculate height of tree
+    int nHeight = 0;
+    while (CalcTreeWidth(nHeight) > 1)
+        nHeight++;
+
+    // traverse the partial tree
+    TraverseAndBuild(nHeight, 0, vTxid, vMatch);
+}
+
+CPartialMerkleTree::CPartialMerkleTree() : nTransactions(0), fBad(true) {}
+
+uint256 CPartialMerkleTree::ExtractMatches(std::vector<uint256> &vMatch) {
+    vMatch.clear();
+    // An empty set will not work
+    if (nTransactions == 0)
+        return uint256();
+    // check for excessively high numbers of transactions
+    if (nTransactions > MAX_BLOCK_SIZE / 60) // 60 is the lower bound for the size of a serialized CTransaction
+        return uint256();
+    // there can never be more hashes provided than one for every txid
+    if (vHash.size() > nTransactions)
+        return uint256();
+    // there must be at least one bit per node in the partial tree, and at least one node per hash
+    if (vBits.size() < vHash.size())
+        return uint256();
+    // calculate height of tree
+    int nHeight = 0;
+    while (CalcTreeWidth(nHeight) > 1)
+        nHeight++;
+    // traverse the partial tree
+    unsigned int nBitsUsed = 0, nHashUsed = 0;
+    uint256 hashMerkleRoot = TraverseAndExtract(nHeight, 0, nBitsUsed, nHashUsed, vMatch);
+    // verify that no problems occured during the tree traversal
+    if (fBad)
+        return uint256();
+    // verify that all bits were consumed (except for the padding caused by serializing it as a byte sequence)
+    if ((nBitsUsed+7)/8 != (vBits.size()+7)/8)
+        return uint256();
+    // verify that all hashes were consumed
+    if (nHashUsed != vHash.size())
+        return uint256();
+    return hashMerkleRoot;
+}
diff --git a/src/merkleblock.h b/src/merkleblock.h
new file mode 100644
index 0000000000..52c914967f
--- /dev/null
+++ b/src/merkleblock.h
@@ -0,0 +1,151 @@
+// Copyright (c) 2009-2010 Satoshi Nakamoto
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_MERKLEBLOCK_H
+#define BITCOIN_MERKLEBLOCK_H
+
+#include "serialize.h"
+#include "uint256.h"
+#include "primitives/block.h"
+#include "bloom.h"
+
+#include <vector>
+
+/** Data structure that represents a partial merkle tree.
+ *
+ * It represents a subset of the txid's of a known block, in a way that
+ * allows recovery of the list of txid's and the merkle root, in an
+ * authenticated way.
+ *
+ * The encoding works as follows: we traverse the tree in depth-first order,
+ * storing a bit for each traversed node, signifying whether the node is the
+ * parent of at least one matched leaf txid (or a matched txid itself). In
+ * case we are at the leaf level, or this bit is 0, its merkle node hash is
+ * stored, and its children are not explorer further. Otherwise, no hash is
+ * stored, but we recurse into both (or the only) child branch. During
+ * decoding, the same depth-first traversal is performed, consuming bits and
+ * hashes as they written during encoding.
+ *
+ * The serialization is fixed and provides a hard guarantee about the
+ * encoded size:
+ *
+ *   SIZE <= 10 + ceil(32.25*N)
+ *
+ * Where N represents the number of leaf nodes of the partial tree. N itself
+ * is bounded by:
+ *
+ *   N <= total_transactions
+ *   N <= 1 + matched_transactions*tree_height
+ *
+ * The serialization format:
+ *  - uint32     total_transactions (4 bytes)
+ *  - varint     number of hashes   (1-3 bytes)
+ *  - uint256[]  hashes in depth-first order (<= 32*N bytes)
+ *  - varint     number of bytes of flag bits (1-3 bytes)
+ *  - byte[]     flag bits, packed per 8 in a byte, least significant bit first (<= 2*N-1 bits)
+ * The size constraints follow from this.
+ */
+class CPartialMerkleTree
+{
+protected:
+    /** the total number of transactions in the block */
+    unsigned int nTransactions;
+
+    /** node-is-parent-of-matched-txid bits */
+    std::vector<bool> vBits;
+
+    /** txids and internal hashes */
+    std::vector<uint256> vHash;
+
+    /** flag set when encountering invalid data */
+    bool fBad;
+
+    /** helper function to efficiently calculate the number of nodes at given height in the merkle tree */
+    unsigned int CalcTreeWidth(int height) {
+        return (nTransactions+(1 << height)-1) >> height;
+    }
+
+    /** calculate the hash of a node in the merkle tree (at leaf level: the txid's themselves) */
+    uint256 CalcHash(int height, unsigned int pos, const std::vector<uint256> &vTxid);
+
+    /** recursive function that traverses tree nodes, storing the data as bits and hashes */
+    void TraverseAndBuild(int height, unsigned int pos, const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch);
+
+    /**
+     * recursive function that traverses tree nodes, consuming the bits and hashes produced by TraverseAndBuild.
+     * it returns the hash of the respective node.
+     */
+    uint256 TraverseAndExtract(int height, unsigned int pos, unsigned int &nBitsUsed, unsigned int &nHashUsed, std::vector<uint256> &vMatch);
+
+public:
+
+    /** serialization implementation */
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
+        READWRITE(nTransactions);
+        READWRITE(vHash);
+        std::vector<unsigned char> vBytes;
+        if (ser_action.ForRead()) {
+            READWRITE(vBytes);
+            CPartialMerkleTree &us = *(const_cast<CPartialMerkleTree*>(this));
+            us.vBits.resize(vBytes.size() * 8);
+            for (unsigned int p = 0; p < us.vBits.size(); p++)
+                us.vBits[p] = (vBytes[p / 8] & (1 << (p % 8))) != 0;
+            us.fBad = false;
+        } else {
+            vBytes.resize((vBits.size()+7)/8);
+            for (unsigned int p = 0; p < vBits.size(); p++)
+                vBytes[p / 8] |= vBits[p] << (p % 8);
+            READWRITE(vBytes);
+        }
+    }
+
+    /** Construct a partial merkle tree from a list of transaction id's, and a mask that selects a subset of them */
+    CPartialMerkleTree(const std::vector<uint256> &vTxid, const std::vector<bool> &vMatch);
+
+    CPartialMerkleTree();
+
+    /**
+     * extract the matching txid's represented by this partial merkle tree.
+     * returns the merkle root, or 0 in case of failure
+     */
+    uint256 ExtractMatches(std::vector<uint256> &vMatch);
+};
+
+
+/**
+ * Used to relay blocks as header + vector<merkle branch>
+ * to filtered nodes.
+ */
+class CMerkleBlock
+{
+public:
+    /** Public only for unit testing */
+    CBlockHeader header;
+    CPartialMerkleTree txn;
+
+public:
+    /** Public only for unit testing and relay testing (not relayed) */
+    std::vector<std::pair<unsigned int, uint256> > vMatchedTxn;
+
+    /**
+     * Create from a CBlock, filtering transactions according to filter
+     * Note that this will call IsRelevantAndUpdate on the filter for each transaction,
+     * thus the filter will likely be modified.
+     */
+    CMerkleBlock(const CBlock& block, CBloomFilter& filter);
+
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
+        READWRITE(header);
+        READWRITE(txn);
+    }
+};
+
+#endif // BITCOIN_MERKLEBLOCK_H
diff --git a/src/miner.cpp b/src/miner.cpp
index ad29431421..e359654d7b 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -1,12 +1,11 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "miner.h"
 
 #include "amount.h"
-#include "primitives/block.h"
 #include "primitives/transaction.h"
 #include "hash.h"
 #include "main.h"
@@ -279,8 +278,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
             if (!CheckInputs(tx, state, view, true, MANDATORY_SCRIPT_VERIFY_FLAGS, true))
                 continue;
 
-            CTxUndo txundo;
-            UpdateCoins(tx, state, view, txundo, nHeight);
+            UpdateCoins(tx, state, view, nHeight);
 
             // Added
             pblock->vtx.push_back(tx);
@@ -334,7 +332,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
 
         CValidationState state;
         if (!TestBlockValidity(state, *pblock, pindexPrev, false, false))
-            throw std::runtime_error("CreateNewBlock() : TestBlockValidity failed");
+            throw std::runtime_error("CreateNewBlock(): TestBlockValidity failed");
     }
 
     return pblocktemplate.release();
@@ -364,8 +362,6 @@ void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int&
 //
 // Internal miner
 //
-double dHashesPerSec = 0.0;
-int64_t nHPSTimerStart = 0;
 
 //
 // ScanHash scans nonces looking for a hash with at least some zero bits.
@@ -395,10 +391,8 @@ bool static ScanHash(const CBlockHeader *pblock, uint32_t& nNonce, uint256 *phas
             return true;
 
         // If nothing found after trying for a while, return -1
-        if ((nNonce & 0xffff) == 0)
-            return false;
         if ((nNonce & 0xfff) == 0)
-            boost::this_thread::interruption_point();
+            return false;
     }
 }
 
@@ -412,7 +406,7 @@ CBlockTemplate* CreateNewBlockWithKey(CReserveKey& reservekey)
     return CreateNewBlock(scriptPubKey);
 }
 
-bool ProcessBlockFound(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey)
+static bool ProcessBlockFound(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey)
 {
     LogPrintf("%s\n", pblock->ToString());
     LogPrintf("generated %s\n", FormatMoney(pblock->vtx[0].vout[0].nValue));
@@ -421,7 +415,7 @@ bool ProcessBlockFound(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey)
     {
         LOCK(cs_main);
         if (pblock->hashPrevBlock != chainActive.Tip()->GetBlockHash())
-            return error("BitcoinMiner : generated block is stale");
+            return error("BitcoinMiner: generated block is stale");
     }
 
     // Remove key from key pool
@@ -436,7 +430,7 @@ bool ProcessBlockFound(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey)
     // Process this block the same as if we had received it from another node
     CValidationState state;
     if (!ProcessNewBlock(state, NULL, pblock))
-        return error("BitcoinMiner : ProcessNewBlock, block not accepted");
+        return error("BitcoinMiner: ProcessNewBlock, block not accepted");
 
     return true;
 }
@@ -482,19 +476,14 @@ void static BitcoinMiner(CWallet *pwallet)
             // Search
             //
             int64_t nStart = GetTime();
-            uint256 hashTarget = uint256().SetCompact(pblock->nBits);
+            arith_uint256 hashTarget = arith_uint256().SetCompact(pblock->nBits);
             uint256 hash;
             uint32_t nNonce = 0;
-            uint32_t nOldNonce = 0;
             while (true) {
-                bool fFound = ScanHash(pblock, nNonce, &hash);
-                uint32_t nHashesDone = nNonce - nOldNonce;
-                nOldNonce = nNonce;
-
                 // Check if something found
-                if (fFound)
+                if (ScanHash(pblock, nNonce, &hash))
                 {
-                    if (hash <= hashTarget)
+                    if (UintToArith256(hash) <= hashTarget)
                     {
                         // Found a solution
                         pblock->nNonce = nNonce;
@@ -514,35 +503,6 @@ void static BitcoinMiner(CWallet *pwallet)
                     }
                 }
 
-                // Meter hashes/sec
-                static int64_t nHashCounter;
-                if (nHPSTimerStart == 0)
-                {
-                    nHPSTimerStart = GetTimeMillis();
-                    nHashCounter = 0;
-                }
-                else
-                    nHashCounter += nHashesDone;
-                if (GetTimeMillis() - nHPSTimerStart > 4000)
-                {
-                    static CCriticalSection cs;
-                    {
-                        LOCK(cs);
-                        if (GetTimeMillis() - nHPSTimerStart > 4000)
-                        {
-                            dHashesPerSec = 1000.0 * nHashCounter / (GetTimeMillis() - nHPSTimerStart);
-                            nHPSTimerStart = GetTimeMillis();
-                            nHashCounter = 0;
-                            static int64_t nLogTime;
-                            if (GetTime() - nLogTime > 30 * 60)
-                            {
-                                nLogTime = GetTime();
-                                LogPrintf("hashmeter %6.0f khash/s\n", dHashesPerSec/1000.0);
-                            }
-                        }
-                    }
-                }
-
                 // Check for stop or if block needs to be rebuilt
                 boost::this_thread::interruption_point();
                 // Regtest mode doesn't require peers
@@ -565,7 +525,7 @@ void static BitcoinMiner(CWallet *pwallet)
             }
         }
     }
-    catch (boost::thread_interrupted)
+    catch (const boost::thread_interrupted&)
     {
         LogPrintf("BitcoinMiner terminated\n");
         throw;
diff --git a/src/miner.h b/src/miner.h
index aede0e6d4b..5d5c9c86c7 100644
--- a/src/miner.h
+++ b/src/miner.h
@@ -1,21 +1,26 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_MINER_H
 #define BITCOIN_MINER_H
 
+#include "primitives/block.h"
+
 #include <stdint.h>
 
-class CBlock;
-class CBlockHeader;
 class CBlockIndex;
 class CReserveKey;
 class CScript;
 class CWallet;
 
-struct CBlockTemplate;
+struct CBlockTemplate
+{
+    CBlock block;
+    std::vector<CAmount> vTxFees;
+    std::vector<int64_t> vTxSigOps;
+};
 
 /** Run the miner threads */
 void GenerateBitcoins(bool fGenerate, CWallet* pwallet, int nThreads);
@@ -24,11 +29,6 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn);
 CBlockTemplate* CreateNewBlockWithKey(CReserveKey& reservekey);
 /** Modify the extranonce in a block */
 void IncrementExtraNonce(CBlock* pblock, CBlockIndex* pindexPrev, unsigned int& nExtraNonce);
-/** Check mined block */
-bool CheckWork(CBlock* pblock, CWallet& wallet, CReserveKey& reservekey);
 void UpdateTime(CBlockHeader* block, const CBlockIndex* pindexPrev);
 
-extern double dHashesPerSec;
-extern int64_t nHPSTimerStart;
-
 #endif // BITCOIN_MINER_H
diff --git a/src/mruset.h b/src/mruset.h
index 1691875f57..1969f419cb 100644
--- a/src/mruset.h
+++ b/src/mruset.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2012 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2012 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_MRUSET_H
diff --git a/src/net.cpp b/src/net.cpp
index 8668d5017d..e4ab9d706d 100644
--- a/src/net.cpp
+++ b/src/net.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
@@ -49,7 +49,6 @@
 #endif
 #endif
 
-using namespace boost;
 using namespace std;
 
 namespace {
@@ -158,56 +157,6 @@ CAddress GetLocalAddress(const CNetAddr *paddrPeer)
     return ret;
 }
 
-bool RecvLine(SOCKET hSocket, string& strLine)
-{
-    strLine = "";
-    while (true)
-    {
-        char c;
-        int nBytes = recv(hSocket, &c, 1, 0);
-        if (nBytes > 0)
-        {
-            if (c == '\n')
-                continue;
-            if (c == '\r')
-                return true;
-            strLine += c;
-            if (strLine.size() >= 9000)
-                return true;
-        }
-        else if (nBytes <= 0)
-        {
-            boost::this_thread::interruption_point();
-            if (nBytes < 0)
-            {
-                int nErr = WSAGetLastError();
-                if (nErr == WSAEMSGSIZE)
-                    continue;
-                if (nErr == WSAEWOULDBLOCK || nErr == WSAEINTR || nErr == WSAEINPROGRESS)
-                {
-                    MilliSleep(10);
-                    continue;
-                }
-            }
-            if (!strLine.empty())
-                return true;
-            if (nBytes == 0)
-            {
-                // socket closed
-                LogPrint("net", "socket closed\n");
-                return false;
-            }
-            else
-            {
-                // socket error
-                int nErr = WSAGetLastError();
-                LogPrint("net", "recv failed: %s\n", NetworkErrorString(nErr));
-                return false;
-            }
-        }
-    }
-}
-
 int GetnScore(const CService& addr)
 {
     LOCK(cs_mapLocalHost);
@@ -399,7 +348,9 @@ CNode* ConnectNode(CAddress addrConnect, const char *pszDest)
 
     // Connect
     SOCKET hSocket;
-    if (pszDest ? ConnectSocketByName(addrConnect, hSocket, pszDest, Params().GetDefaultPort()) : ConnectSocket(addrConnect, hSocket))
+    bool proxyConnectionFailed = false;
+    if (pszDest ? ConnectSocketByName(addrConnect, hSocket, pszDest, Params().GetDefaultPort(), nConnectTimeout, &proxyConnectionFailed) :
+                  ConnectSocket(addrConnect, hSocket, nConnectTimeout, &proxyConnectionFailed))
     {
         addrman.Attempt(addrConnect);
 
@@ -415,6 +366,10 @@ CNode* ConnectNode(CAddress addrConnect, const char *pszDest)
         pnode->nTimeConnected = GetTime();
 
         return pnode;
+    } else if (!proxyConnectionFailed) {
+        // If connecting to the node failed, and failure is not caused by a problem connecting to
+        // the proxy, mark this as an attempt.
+        addrman.Attempt(addrConnect);
     }
 
     return NULL;
@@ -439,7 +394,6 @@ void CNode::PushVersion()
 {
     int nBestHeight = g_signals.GetHeight().get_value_or(0);
 
-    /// when NTP implemented, change to just nTime = GetAdjustedTime()
     int64_t nTime = (fInbound ? GetAdjustedTime() : GetTime());
     CAddress addrYou = (addr.IsRoutable() && !IsProxy(addr) ? addr : CAddress(CService("0.0.0.0",0)));
     CAddress addrMe = GetLocalAddress(&addr);
@@ -517,6 +471,7 @@ void CNode::copyStats(CNodeStats &stats)
     X(nLastSend);
     X(nLastRecv);
     X(nTimeConnected);
+    X(nTimeOffset);
     X(addrName);
     X(nVersion);
     X(cleanSubVer);
@@ -595,7 +550,7 @@ int CNetMessage::readHeader(const char *pch, unsigned int nBytes)
     try {
         hdrbuf >> hdr;
     }
-    catch (const std::exception &) {
+    catch (const std::exception&) {
         return -1;
     }
 
@@ -1062,10 +1017,10 @@ void ThreadMapPort()
                 MilliSleep(20*60*1000); // Refresh every 20 minutes
             }
         }
-        catch (boost::thread_interrupted)
+        catch (const boost::thread_interrupted&)
         {
             r = UPNP_DeletePortMapping(urls.controlURL, data.first.servicetype, port.c_str(), "TCP", 0);
-            LogPrintf("UPNP_DeletePortMapping() returned : %d\n", r);
+            LogPrintf("UPNP_DeletePortMapping() returned: %d\n", r);
             freeUPNPDevlist(devlist); devlist = 0;
             FreeUPNPUrls(&urls);
             throw;
@@ -1842,21 +1797,21 @@ bool CAddrDB::Write(const CAddrMan& addr)
     FILE *file = fopen(pathTmp.string().c_str(), "wb");
     CAutoFile fileout(file, SER_DISK, CLIENT_VERSION);
     if (fileout.IsNull())
-        return error("%s : Failed to open file %s", __func__, pathTmp.string());
+        return error("%s: Failed to open file %s", __func__, pathTmp.string());
 
     // Write and commit header, data
     try {
         fileout << ssPeers;
     }
-    catch (std::exception &e) {
-        return error("%s : Serialize or I/O error - %s", __func__, e.what());
+    catch (const std::exception& e) {
+        return error("%s: Serialize or I/O error - %s", __func__, e.what());
     }
     FileCommit(fileout.Get());
     fileout.fclose();
 
     // replace existing peers.dat, if any, with new peers.dat.XXXX
     if (!RenameOver(pathTmp, pathAddr))
-        return error("%s : Rename-into-place failed", __func__);
+        return error("%s: Rename-into-place failed", __func__);
 
     return true;
 }
@@ -1867,7 +1822,7 @@ bool CAddrDB::Read(CAddrMan& addr)
     FILE *file = fopen(pathAddr.string().c_str(), "rb");
     CAutoFile filein(file, SER_DISK, CLIENT_VERSION);
     if (filein.IsNull())
-        return error("%s : Failed to open file %s", __func__, pathAddr.string());
+        return error("%s: Failed to open file %s", __func__, pathAddr.string());
 
     // use file size to size memory buffer
     int fileSize = boost::filesystem::file_size(pathAddr);
@@ -1884,8 +1839,8 @@ bool CAddrDB::Read(CAddrMan& addr)
         filein.read((char *)&vchData[0], dataSize);
         filein >> hashIn;
     }
-    catch (std::exception &e) {
-        return error("%s : Deserialize or I/O error - %s", __func__, e.what());
+    catch (const std::exception& e) {
+        return error("%s: Deserialize or I/O error - %s", __func__, e.what());
     }
     filein.fclose();
 
@@ -1894,7 +1849,7 @@ bool CAddrDB::Read(CAddrMan& addr)
     // verify stored checksum matches input data
     uint256 hashTmp = Hash(ssPeers.begin(), ssPeers.end());
     if (hashIn != hashTmp)
-        return error("%s : Checksum mismatch, data corrupted", __func__);
+        return error("%s: Checksum mismatch, data corrupted", __func__);
 
     unsigned char pchMsgTmp[4];
     try {
@@ -1903,13 +1858,13 @@ bool CAddrDB::Read(CAddrMan& addr)
 
         // ... verify the network matches ours
         if (memcmp(pchMsgTmp, Params().MessageStart(), sizeof(pchMsgTmp)))
-            return error("%s : Invalid network magic number", __func__);
+            return error("%s: Invalid network magic number", __func__);
 
         // de-serialize address data into one CAddrMan object
         ssPeers >> addr;
     }
-    catch (std::exception &e) {
-        return error("%s : Deserialize or I/O error - %s", __func__, e.what());
+    catch (const std::exception& e) {
+        return error("%s: Deserialize or I/O error - %s", __func__, e.what());
     }
 
     return true;
@@ -1928,6 +1883,7 @@ CNode::CNode(SOCKET hSocketIn, CAddress addrIn, std::string addrNameIn, bool fIn
     nSendBytes = 0;
     nRecvBytes = 0;
     nTimeConnected = GetTime();
+    nTimeOffset = 0;
     addr = addrIn;
     addrName = addrNameIn == "" ? addr.ToStringIPPort() : addrNameIn;
     nVersion = 0;
@@ -1942,7 +1898,7 @@ CNode::CNode(SOCKET hSocketIn, CAddress addrIn, std::string addrNameIn, bool fIn
     nRefCount = 0;
     nSendSize = 0;
     nSendOffset = 0;
-    hashContinue = 0;
+    hashContinue = uint256();
     nStartingHeight = -1;
     fGetAddr = false;
     fRelayTxes = false;
diff --git a/src/net.h b/src/net.h
index e48acf5644..b78665b5c6 100644
--- a/src/net.h
+++ b/src/net.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_NET_H
@@ -44,6 +44,8 @@ static const int PING_INTERVAL = 2 * 60;
 static const int TIMEOUT_INTERVAL = 20 * 60;
 /** The maximum number of entries in an 'inv' protocol message */
 static const unsigned int MAX_INV_SZ = 50000;
+/** The maximum number of new addresses to accumulate before announcing. */
+static const unsigned int MAX_ADDR_TO_SEND = 1000;
 /** -listen default */
 static const bool DEFAULT_LISTEN = true;
 /** -upnp default */
@@ -59,7 +61,6 @@ unsigned int ReceiveFloodSize();
 unsigned int SendBufferSize();
 
 void AddOneShot(std::string strDest);
-bool RecvLine(SOCKET hSocket, std::string& strLine);
 void AddressCurrentlyConnected(const CService& addr);
 CNode* FindNode(const CNetAddr& ip);
 CNode* FindNode(const std::string& addrName);
@@ -152,6 +153,7 @@ public:
     int64_t nLastSend;
     int64_t nLastRecv;
     int64_t nTimeConnected;
+    int64_t nTimeOffset;
     std::string addrName;
     int nVersion;
     std::string cleanSubVer;
@@ -233,6 +235,7 @@ public:
     int64_t nLastSend;
     int64_t nLastRecv;
     int64_t nTimeConnected;
+    int64_t nTimeOffset;
     CAddress addr;
     std::string addrName;
     CService addrLocal;
@@ -368,8 +371,13 @@ public:
         // Known checking here is only to save space from duplicates.
         // SendMessages will filter it again for knowns that were added
         // after addresses were pushed.
-        if (addr.IsValid() && !setAddrKnown.count(addr))
-            vAddrToSend.push_back(addr);
+        if (addr.IsValid() && !setAddrKnown.count(addr)) {
+            if (vAddrToSend.size() >= MAX_ADDR_TO_SEND) {
+                vAddrToSend[insecure_rand() % vAddrToSend.size()] = addr;
+            } else {
+                vAddrToSend.push_back(addr);
+            }
+        }
     }
 
 
diff --git a/src/netbase.cpp b/src/netbase.cpp
index aca5a107fe..a2ac6575bc 100644
--- a/src/netbase.cpp
+++ b/src/netbase.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifdef HAVE_CONFIG_H
@@ -519,9 +519,11 @@ bool IsProxy(const CNetAddr &addr) {
     return false;
 }
 
-bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout)
+bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed)
 {
     proxyType proxy;
+    if (outProxyConnectionFailed)
+        *outProxyConnectionFailed = false;
     // no proxy needed (none set for target network)
     if (!GetProxy(addrDest.GetNetwork(), proxy))
         return ConnectSocketDirectly(addrDest, hSocketRet, nTimeout);
@@ -529,8 +531,11 @@ bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout)
     SOCKET hSocket = INVALID_SOCKET;
 
     // first connect to proxy server
-    if (!ConnectSocketDirectly(proxy, hSocket, nTimeout))
+    if (!ConnectSocketDirectly(proxy, hSocket, nTimeout)) {
+        if (outProxyConnectionFailed)
+            *outProxyConnectionFailed = true;
         return false;
+    }
     // do socks negotiation
     if (!Socks5(addrDest.ToStringIP(), addrDest.GetPort(), hSocket))
         return false;
@@ -539,10 +544,14 @@ bool ConnectSocket(const CService &addrDest, SOCKET& hSocketRet, int nTimeout)
     return true;
 }
 
-bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout)
+bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout, bool *outProxyConnectionFailed)
 {
     string strDest;
     int port = portDefault;
+
+    if (outProxyConnectionFailed)
+        *outProxyConnectionFailed = false;
+
     SplitHostPort(string(pszDest), port, strDest);
 
     SOCKET hSocket = INVALID_SOCKET;
@@ -561,8 +570,11 @@ bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest
     if (!HaveNameProxy())
         return false;
     // first connect to name proxy server
-    if (!ConnectSocketDirectly(nameProxy, hSocket, nTimeout))
+    if (!ConnectSocketDirectly(nameProxy, hSocket, nTimeout)) {
+        if (outProxyConnectionFailed)
+            *outProxyConnectionFailed = true;
         return false;
+    }
     // do socks negotiation
     if (!Socks5(strDest, (unsigned short)port, hSocket))
         return false;
diff --git a/src/netbase.h b/src/netbase.h
index 9d8697dcc6..5bf13a673f 100644
--- a/src/netbase.h
+++ b/src/netbase.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_NETBASE_H
@@ -182,8 +182,8 @@ bool LookupHost(const char *pszName, std::vector<CNetAddr>& vIP, unsigned int nM
 bool Lookup(const char *pszName, CService& addr, int portDefault = 0, bool fAllowLookup = true);
 bool Lookup(const char *pszName, std::vector<CService>& vAddr, int portDefault = 0, bool fAllowLookup = true, unsigned int nMaxSolutions = 0);
 bool LookupNumeric(const char *pszName, CService& addr, int portDefault = 0);
-bool ConnectSocket(const CService &addr, SOCKET& hSocketRet, int nTimeout = nConnectTimeout);
-bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault = 0, int nTimeout = nConnectTimeout);
+bool ConnectSocket(const CService &addr, SOCKET& hSocketRet, int nTimeout, bool *outProxyConnectionFailed = 0);
+bool ConnectSocketByName(CService &addr, SOCKET& hSocketRet, const char *pszDest, int portDefault, int nTimeout, bool *outProxyConnectionFailed = 0);
 /** Return readable error string for a network error code */
 std::string NetworkErrorString(int err);
 /** Close socket and set hSocket to INVALID_SOCKET */
diff --git a/src/noui.cpp b/src/noui.cpp
index 8f3b0275b0..3a77361919 100644
--- a/src/noui.cpp
+++ b/src/noui.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "noui.h"
diff --git a/src/noui.h b/src/noui.h
index dbd4320fa7..15cd30a639 100644
--- a/src/noui.h
+++ b/src/noui.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_NOUI_H
diff --git a/src/pow.cpp b/src/pow.cpp
index bdcfa852f4..e49f0d104c 100644
--- a/src/pow.cpp
+++ b/src/pow.cpp
@@ -1,10 +1,11 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "pow.h"
 
+#include "arith_uint256.h"
 #include "chain.h"
 #include "chainparams.h"
 #include "primitives/block.h"
@@ -56,8 +57,8 @@ unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHead
         nActualTimespan = Params().TargetTimespan()*4;
 
     // Retarget
-    uint256 bnNew;
-    uint256 bnOld;
+    arith_uint256 bnNew;
+    arith_uint256 bnOld;
     bnNew.SetCompact(pindexLast->nBits);
     bnOld = bnNew;
     bnNew *= nActualTimespan;
@@ -79,7 +80,7 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits)
 {
     bool fNegative;
     bool fOverflow;
-    uint256 bnTarget;
+    arith_uint256 bnTarget;
 
     if (Params().SkipProofOfWorkCheck())
        return true;
@@ -88,25 +89,25 @@ bool CheckProofOfWork(uint256 hash, unsigned int nBits)
 
     // Check range
     if (fNegative || bnTarget == 0 || fOverflow || bnTarget > Params().ProofOfWorkLimit())
-        return error("CheckProofOfWork() : nBits below minimum work");
+        return error("CheckProofOfWork(): nBits below minimum work");
 
     // Check proof of work matches claimed amount
-    if (hash > bnTarget)
-        return error("CheckProofOfWork() : hash doesn't match nBits");
+    if (UintToArith256(hash) > bnTarget)
+        return error("CheckProofOfWork(): hash doesn't match nBits");
 
     return true;
 }
 
-uint256 GetBlockProof(const CBlockIndex& block)
+arith_uint256 GetBlockProof(const CBlockIndex& block)
 {
-    uint256 bnTarget;
+    arith_uint256 bnTarget;
     bool fNegative;
     bool fOverflow;
     bnTarget.SetCompact(block.nBits, &fNegative, &fOverflow);
     if (fNegative || fOverflow || bnTarget == 0)
         return 0;
     // We need to compute 2**256 / (bnTarget+1), but we can't represent 2**256
-    // as it's too large for a uint256. However, as 2**256 is at least as large
+    // as it's too large for a arith_uint256. However, as 2**256 is at least as large
     // as bnTarget+1, it is equal to ((2**256 - bnTarget - 1) / (bnTarget+1)) + 1,
     // or ~bnTarget / (nTarget+1) + 1.
     return (~bnTarget / (bnTarget + 1)) + 1;
diff --git a/src/pow.h b/src/pow.h
index cf28656bd8..3337a30a5e 100644
--- a/src/pow.h
+++ b/src/pow.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_POW_H
@@ -11,11 +11,12 @@
 class CBlockHeader;
 class CBlockIndex;
 class uint256;
+class arith_uint256;
 
 unsigned int GetNextWorkRequired(const CBlockIndex* pindexLast, const CBlockHeader *pblock);
 
 /** Check whether a block hash satisfies the proof-of-work requirement specified by nBits */
 bool CheckProofOfWork(uint256 hash, unsigned int nBits);
-uint256 GetBlockProof(const CBlockIndex& block);
+arith_uint256 GetBlockProof(const CBlockIndex& block);
 
 #endif // BITCOIN_POW_H
diff --git a/src/primitives/block.cpp b/src/primitives/block.cpp
index 225bb80be8..3b4a360395 100644
--- a/src/primitives/block.cpp
+++ b/src/primitives/block.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "primitives/block.h"
@@ -74,7 +74,7 @@ uint256 CBlock::BuildMerkleTree(bool* fMutated) const
     if (fMutated) {
         *fMutated = mutated;
     }
-    return (vMerkleTree.empty() ? 0 : vMerkleTree.back());
+    return (vMerkleTree.empty() ? uint256() : vMerkleTree.back());
 }
 
 std::vector<uint256> CBlock::GetMerkleBranch(int nIndex) const
@@ -96,7 +96,7 @@ std::vector<uint256> CBlock::GetMerkleBranch(int nIndex) const
 uint256 CBlock::CheckMerkleBranch(uint256 hash, const std::vector<uint256>& vMerkleBranch, int nIndex)
 {
     if (nIndex == -1)
-        return 0;
+        return uint256();
     for (std::vector<uint256>::const_iterator it(vMerkleBranch.begin()); it != vMerkleBranch.end(); ++it)
     {
         if (nIndex & 1)
diff --git a/src/primitives/block.h b/src/primitives/block.h
index e663c91e84..c7ed6f723a 100644
--- a/src/primitives/block.h
+++ b/src/primitives/block.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_PRIMITIVES_BLOCK_H
@@ -10,6 +10,9 @@
 #include "serialize.h"
 #include "uint256.h"
 
+/** The maximum allowed size for a serialized block, in bytes (network rule) */
+static const unsigned int MAX_BLOCK_SIZE = 1000000;
+
 /** Nodes collect new transactions into a block, hash them into a hash tree,
  * and scan through nonce values to make the block's hash satisfy proof-of-work
  * requirements.  When they solve the proof-of-work, they broadcast the block
@@ -21,7 +24,7 @@ class CBlockHeader
 {
 public:
     // header
-    static const int32_t CURRENT_VERSION=2;
+    static const int32_t CURRENT_VERSION=3;
     int32_t nVersion;
     uint256 hashPrevBlock;
     uint256 hashMerkleRoot;
@@ -50,8 +53,8 @@ public:
     void SetNull()
     {
         nVersion = CBlockHeader::CURRENT_VERSION;
-        hashPrevBlock = 0;
-        hashMerkleRoot = 0;
+        hashPrevBlock.SetNull();
+        hashMerkleRoot.SetNull();
         nTime = 0;
         nBits = 0;
         nNonce = 0;
@@ -159,7 +162,7 @@ struct CBlockLocator
         vHave.clear();
     }
 
-    bool IsNull()
+    bool IsNull() const
     {
         return vHave.empty();
     }
diff --git a/src/primitives/transaction.cpp b/src/primitives/transaction.cpp
index 336151905c..606dbea798 100644
--- a/src/primitives/transaction.cpp
+++ b/src/primitives/transaction.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -72,7 +72,7 @@ void CTransaction::UpdateHash() const
     *const_cast<uint256*>(&hash) = SerializeHash(*this);
 }
 
-CTransaction::CTransaction() : hash(0), nVersion(CTransaction::CURRENT_VERSION), vin(), vout(), nLockTime(0) { }
+CTransaction::CTransaction() : nVersion(CTransaction::CURRENT_VERSION), vin(), vout(), nLockTime(0) { }
 
 CTransaction::CTransaction(const CMutableTransaction &tx) : nVersion(tx.nVersion), vin(tx.vin), vout(tx.vout), nLockTime(tx.nLockTime) {
     UpdateHash();
@@ -94,7 +94,7 @@ CAmount CTransaction::GetValueOut() const
     {
         nValueOut += it->nValue;
         if (!MoneyRange(it->nValue) || !MoneyRange(nValueOut))
-            throw std::runtime_error("CTransaction::GetValueOut() : value out of range");
+            throw std::runtime_error("CTransaction::GetValueOut(): value out of range");
     }
     return nValueOut;
 }
diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
index a7a1e013ed..1b5a47e0da 100644
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -28,8 +28,8 @@ public:
         READWRITE(FLATDATA(*this));
     }
 
-    void SetNull() { hash = 0; n = (uint32_t) -1; }
-    bool IsNull() const { return (hash == 0 && n == (uint32_t) -1); }
+    void SetNull() { hash.SetNull(); n = (uint32_t) -1; }
+    bool IsNull() const { return (hash.IsNull() && n == (uint32_t) -1); }
 
     friend bool operator<(const COutPoint& a, const COutPoint& b)
     {
diff --git a/src/protocol.cpp b/src/protocol.cpp
index 72fdd753a8..74ac706d60 100644
--- a/src/protocol.cpp
+++ b/src/protocol.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "protocol.h"
@@ -66,7 +66,7 @@ bool CMessageHeader::IsValid() const
     // Message size
     if (nMessageSize > MAX_SIZE)
     {
-        LogPrintf("CMessageHeader::IsValid() : (%s, %u bytes) nMessageSize > MAX_SIZE\n", GetCommand(), nMessageSize);
+        LogPrintf("CMessageHeader::IsValid(): (%s, %u bytes) nMessageSize > MAX_SIZE\n", GetCommand(), nMessageSize);
         return false;
     }
 
@@ -96,7 +96,7 @@ void CAddress::Init()
 CInv::CInv()
 {
     type = 0;
-    hash = 0;
+    hash.SetNull();
 }
 
 CInv::CInv(int typeIn, const uint256& hashIn)
@@ -117,7 +117,7 @@ CInv::CInv(const std::string& strType, const uint256& hashIn)
         }
     }
     if (i == ARRAYLEN(ppszTypeName))
-        throw std::out_of_range(strprintf("CInv::CInv(string, uint256) : unknown type '%s'", strType));
+        throw std::out_of_range(strprintf("CInv::CInv(string, uint256): unknown type '%s'", strType));
     hash = hashIn;
 }
 
@@ -134,7 +134,7 @@ bool CInv::IsKnownType() const
 const char* CInv::GetCommand() const
 {
     if (!IsKnownType())
-        throw std::out_of_range(strprintf("CInv::GetCommand() : type=%d unknown type", type));
+        throw std::out_of_range(strprintf("CInv::GetCommand(): type=%d unknown type", type));
     return ppszTypeName[type];
 }
 
diff --git a/src/protocol.h b/src/protocol.h
index 2ac8f3d8f7..f8394ce52f 100644
--- a/src/protocol.h
+++ b/src/protocol.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef __cplusplus
diff --git a/src/pubkey.cpp b/src/pubkey.cpp
index 91979ff4dc..3ae67ca5fe 100644
--- a/src/pubkey.cpp
+++ b/src/pubkey.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -16,7 +16,7 @@ bool CPubKey::Verify(const uint256 &hash, const std::vector<unsigned char>& vchS
     if (!IsValid())
         return false;
 #ifdef USE_SECP256K1
-    if (secp256k1_ecdsa_verify((const unsigned char*)&hash, 32, &vchSig[0], vchSig.size(), begin(), size()) != 1)
+    if (secp256k1_ecdsa_verify((const unsigned char*)&hash, &vchSig[0], vchSig.size(), begin(), size()) != 1)
         return false;
 #else
     CECKey key;
@@ -35,7 +35,7 @@ bool CPubKey::RecoverCompact(const uint256 &hash, const std::vector<unsigned cha
     bool fComp = ((vchSig[0] - 27) & 4) != 0;
 #ifdef USE_SECP256K1
     int pubkeylen = 65;
-    if (!secp256k1_ecdsa_recover_compact((const unsigned char*)&hash, 32, &vchSig[1], (unsigned char*)begin(), &pubkeylen, fComp, recid))
+    if (!secp256k1_ecdsa_recover_compact((const unsigned char*)&hash, &vchSig[1], (unsigned char*)begin(), &pubkeylen, fComp, recid))
         return false;
     assert((int)size() == pubkeylen);
 #else
diff --git a/src/pubkey.h b/src/pubkey.h
index 37351cff0e..b0768d4f47 100644
--- a/src/pubkey.h
+++ b/src/pubkey.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -27,7 +27,7 @@
 class CKeyID : public uint160
 {
 public:
-    CKeyID() : uint160(0) {}
+    CKeyID() : uint160() {}
     CKeyID(const uint160& in) : uint160(in) {}
 };
 
diff --git a/src/qt/addressbookpage.cpp b/src/qt/addressbookpage.cpp
index f336d47e83..5485d89f3e 100644
--- a/src/qt/addressbookpage.cpp
+++ b/src/qt/addressbookpage.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
@@ -14,6 +14,7 @@
 #include "csvmodelwriter.h"
 #include "editaddressdialog.h"
 #include "guiutil.h"
+#include "scicon.h"
 
 #include <QIcon>
 #include <QMenu>
@@ -34,6 +35,11 @@ AddressBookPage::AddressBookPage(Mode mode, Tabs tab, QWidget *parent) :
     ui->copyAddress->setIcon(QIcon());
     ui->deleteAddress->setIcon(QIcon());
     ui->exportButton->setIcon(QIcon());
+#else
+    ui->newAddress->setIcon(SingleColorIcon(":/icons/add"));
+    ui->copyAddress->setIcon(SingleColorIcon(":/icons/editcopy"));
+    ui->deleteAddress->setIcon(SingleColorIcon(":/icons/remove"));
+    ui->exportButton->setIcon(SingleColorIcon(":/icons/export"));
 #endif
 
     switch(mode)
diff --git a/src/qt/addressbookpage.h b/src/qt/addressbookpage.h
index 031c424785..5105f09ced 100644
--- a/src/qt/addressbookpage.h
+++ b/src/qt/addressbookpage.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_ADDRESSBOOKPAGE_H
diff --git a/src/qt/addresstablemodel.cpp b/src/qt/addresstablemodel.cpp
index 8d5284d5e9..162ecdba4e 100644
--- a/src/qt/addresstablemodel.cpp
+++ b/src/qt/addresstablemodel.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "addresstablemodel.h"
@@ -114,7 +114,7 @@ public:
         case CT_NEW:
             if(inModel)
             {
-                qWarning() << "AddressTablePriv::updateEntry : Warning: Got CT_NEW, but entry is already in model";
+                qWarning() << "AddressTablePriv::updateEntry: Warning: Got CT_NEW, but entry is already in model";
                 break;
             }
             parent->beginInsertRows(QModelIndex(), lowerIndex, lowerIndex);
@@ -124,7 +124,7 @@ public:
         case CT_UPDATED:
             if(!inModel)
             {
-                qWarning() << "AddressTablePriv::updateEntry : Warning: Got CT_UPDATED, but entry is not in model";
+                qWarning() << "AddressTablePriv::updateEntry: Warning: Got CT_UPDATED, but entry is not in model";
                 break;
             }
             lower->type = newEntryType;
@@ -134,7 +134,7 @@ public:
         case CT_DELETED:
             if(!inModel)
             {
-                qWarning() << "AddressTablePriv::updateEntry : Warning: Got CT_DELETED, but entry is not in model";
+                qWarning() << "AddressTablePriv::updateEntry: Warning: Got CT_DELETED, but entry is not in model";
                 break;
             }
             parent->beginRemoveRows(QModelIndex(), lowerIndex, upperIndex-1);
diff --git a/src/qt/addresstablemodel.h b/src/qt/addresstablemodel.h
index 310647d7c3..6b34b2eac2 100644
--- a/src/qt/addresstablemodel.h
+++ b/src/qt/addresstablemodel.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_ADDRESSTABLEMODEL_H
diff --git a/src/qt/askpassphrasedialog.cpp b/src/qt/askpassphrasedialog.cpp
index fa9ac6b135..9b7b59c0db 100644
--- a/src/qt/askpassphrasedialog.cpp
+++ b/src/qt/askpassphrasedialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "askpassphrasedialog.h"
@@ -119,7 +119,7 @@ void AskPassphraseDialog::accept()
                 {
                     QMessageBox::warning(this, tr("Wallet encrypted"),
                                          "<qt>" +
-                                         tr("Bitcoin will close now to finish the encryption process. "
+                                         tr("Bitcoin Core will close now to finish the encryption process. "
                                          "Remember that encrypting your wallet cannot fully protect "
                                          "your bitcoins from being stolen by malware infecting your computer.") +
                                          "<br><br><b>" +
diff --git a/src/qt/askpassphrasedialog.h b/src/qt/askpassphrasedialog.h
index 6605086060..74d54d18f7 100644
--- a/src/qt/askpassphrasedialog.h
+++ b/src/qt/askpassphrasedialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_ASKPASSPHRASEDIALOG_H
diff --git a/src/qt/bitcoin.cpp b/src/qt/bitcoin.cpp
index 9872ebc1f6..73c684e489 100644
--- a/src/qt/bitcoin.cpp
+++ b/src/qt/bitcoin.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
@@ -89,10 +89,24 @@ static std::string Translate(const char* psz)
     return QCoreApplication::translate("bitcoin-core", psz).toStdString();
 }
 
+static QString GetLangTerritory()
+{
+    QSettings settings;
+    // Get desired locale (e.g. "de_DE")
+    // 1) System default language
+    QString lang_territory = QLocale::system().name();
+    // 2) Language from QSettings
+    QString lang_territory_qsettings = settings.value("language", "").toString();
+    if(!lang_territory_qsettings.isEmpty())
+        lang_territory = lang_territory_qsettings;
+    // 3) -lang command line argument
+    lang_territory = QString::fromStdString(GetArg("-lang", lang_territory.toStdString()));
+    return lang_territory;
+}
+
 /** Set up translations */
 static void initTranslations(QTranslator &qtTranslatorBase, QTranslator &qtTranslator, QTranslator &translatorBase, QTranslator &translator)
 {
-    QSettings settings;
 
     // Remove old translators
     QApplication::removeTranslator(&qtTranslatorBase);
@@ -102,13 +116,7 @@ static void initTranslations(QTranslator &qtTranslatorBase, QTranslator &qtTrans
 
     // Get desired locale (e.g. "de_DE")
     // 1) System default language
-    QString lang_territory = QLocale::system().name();
-    // 2) Language from QSettings
-    QString lang_territory_qsettings = settings.value("language", "").toString();
-    if(!lang_territory_qsettings.isEmpty())
-        lang_territory = lang_territory_qsettings;
-    // 3) -lang command line argument
-    lang_territory = QString::fromStdString(GetArg("-lang", lang_territory.toStdString()));
+    QString lang_territory = GetLangTerritory();
 
     // Convert to "de" only by truncating "_DE"
     QString lang = lang_territory;
@@ -173,7 +181,7 @@ private:
     boost::thread_group threadGroup;
 
     /// Pass fatal exception message to UI thread
-    void handleRunawayException(std::exception *e);
+    void handleRunawayException(const std::exception *e);
 };
 
 /** Main Bitcoin application object */
@@ -240,7 +248,7 @@ BitcoinCore::BitcoinCore():
 {
 }
 
-void BitcoinCore::handleRunawayException(std::exception *e)
+void BitcoinCore::handleRunawayException(const std::exception *e)
 {
     PrintExceptionContinue(e, "Runaway exception");
     emit runawayException(QString::fromStdString(strMiscWarning));
@@ -260,7 +268,7 @@ void BitcoinCore::initialize()
             StartDummyRPCThread();
         }
         emit initializeResult(rv);
-    } catch (std::exception& e) {
+    } catch (const std::exception& e) {
         handleRunawayException(&e);
     } catch (...) {
         handleRunawayException(NULL);
@@ -277,7 +285,7 @@ void BitcoinCore::shutdown()
         Shutdown();
         qDebug() << __func__ << ": Shutdown finished";
         emit shutdownResult(1);
-    } catch (std::exception& e) {
+    } catch (const std::exception& e) {
         handleRunawayException(&e);
     } catch (...) {
         handleRunawayException(NULL);
@@ -498,8 +506,6 @@ int main(int argc, char *argv[])
     Q_INIT_RESOURCE(bitcoin);
     Q_INIT_RESOURCE(bitcoin_locale);
 
-    GUIUtil::SubstituteFonts();
-
     BitcoinApplication app(argc, argv);
 #if QT_VERSION > 0x050100
     // Generate high-dpi pixmaps
@@ -521,6 +527,7 @@ int main(int argc, char *argv[])
     QApplication::setOrganizationName(QAPP_ORG_NAME);
     QApplication::setOrganizationDomain(QAPP_ORG_DOMAIN);
     QApplication::setApplicationName(QAPP_APP_NAME_DEFAULT);
+    GUIUtil::SubstituteFonts(GetLangTerritory());
 
     /// 4. Initialization of translations, so that intro dialog is in user's language
     // Now that QSettings are accessible, initialize translations
@@ -551,7 +558,7 @@ int main(int argc, char *argv[])
     }
     try {
         ReadConfigFile(mapArgs, mapMultiArgs);
-    } catch(std::exception &e) {
+    } catch (const std::exception& e) {
         QMessageBox::critical(0, QObject::tr("Bitcoin Core"),
                               QObject::tr("Error: Cannot parse configuration file: %1. Only use key=value syntax.").arg(e.what()));
         return false;
@@ -570,9 +577,9 @@ int main(int argc, char *argv[])
     }
 #ifdef ENABLE_WALLET
     // Parse URIs on command line -- this can affect Params()
-    if (!PaymentServer::ipcParseCommandLine(argc, argv))
-        exit(0);
+    PaymentServer::ipcParseCommandLine(argc, argv);
 #endif
+
     QScopedPointer<const NetworkStyle> networkStyle(NetworkStyle::instantiate(QString::fromStdString(Params().NetworkIDString())));
     assert(!networkStyle.isNull());
     // Allow for separate UI settings for testnets
@@ -628,7 +635,7 @@ int main(int argc, char *argv[])
         app.exec();
         app.requestShutdown();
         app.exec();
-    } catch (std::exception& e) {
+    } catch (const std::exception& e) {
         PrintExceptionContinue(&e, "Runaway exception");
         app.handleRunawayException(QString::fromStdString(strMiscWarning));
     } catch (...) {
diff --git a/src/qt/bitcoin.qrc b/src/qt/bitcoin.qrc
index 42bb091e25..63af146fd0 100644
--- a/src/qt/bitcoin.qrc
+++ b/src/qt/bitcoin.qrc
@@ -4,11 +4,11 @@
         <file alias="address-book">res/icons/address-book.png</file>
         <file alias="quit">res/icons/quit.png</file>
         <file alias="send">res/icons/send.png</file>
-        <file alias="connect_0">res/icons/connect0_16.png</file>
-        <file alias="connect_1">res/icons/connect1_16.png</file>
-        <file alias="connect_2">res/icons/connect2_16.png</file>
-        <file alias="connect_3">res/icons/connect3_16.png</file>
-        <file alias="connect_4">res/icons/connect4_16.png</file>
+        <file alias="connect_0">res/icons/connect0.png</file>
+        <file alias="connect_1">res/icons/connect1.png</file>
+        <file alias="connect_2">res/icons/connect2.png</file>
+        <file alias="connect_3">res/icons/connect3.png</file>
+        <file alias="connect_4">res/icons/connect4.png</file>
         <file alias="transaction_0">res/icons/transaction0.png</file>
         <file alias="transaction_confirmed">res/icons/transaction2.png</file>
         <file alias="transaction_conflicted">res/icons/transaction_conflicted.png</file>
@@ -25,7 +25,6 @@
         <file alias="editpaste">res/icons/editpaste.png</file>
         <file alias="editcopy">res/icons/editcopy.png</file>
         <file alias="add">res/icons/add.png</file>
-        <file alias="bitcoin_testnet">res/icons/bitcoin_testnet.png</file>
         <file alias="edit">res/icons/edit.png</file>
         <file alias="history">res/icons/history.png</file>
         <file alias="overview">res/icons/overview.png</file>
@@ -36,20 +35,16 @@
         <file alias="tx_input">res/icons/tx_input.png</file>
         <file alias="tx_output">res/icons/tx_output.png</file>
         <file alias="tx_inout">res/icons/tx_inout.png</file>
-        <file alias="unit_btc">res/icons/unit_btc.png</file>
-        <file alias="unit_mbtc">res/icons/unit_mbtc.png</file>
-        <file alias="unit_ubtc">res/icons/unit_ubtc.png</file>
         <file alias="lock_closed">res/icons/lock_closed.png</file>
         <file alias="lock_open">res/icons/lock_open.png</file>
         <file alias="key">res/icons/key.png</file>
         <file alias="filesave">res/icons/filesave.png</file>
-        <file alias="qrcode">res/icons/qrcode.png</file>
         <file alias="debugwindow">res/icons/debugwindow.png</file>
-    </qresource>
-    <qresource prefix="/images">
-        <file alias="about">res/images/about.png</file>
-        <file alias="splash">res/images/splash.png</file>
-        <file alias="splash_testnet">res/images/splash_testnet.png</file>
+        <file alias="open">res/icons/open.png</file>
+        <file alias="info">res/icons/info.png</file>
+        <file alias="about">res/icons/about.png</file>
+        <file alias="about_qt">res/icons/about_qt.png</file>
+        <file alias="verify">res/icons/verify.png</file>
     </qresource>
     <qresource prefix="/movies">
         <file alias="spinner-000">res/movies/spinner-000.png</file>
@@ -87,5 +82,6 @@
         <file alias="spinner-032">res/movies/spinner-032.png</file>
         <file alias="spinner-033">res/movies/spinner-033.png</file>
         <file alias="spinner-034">res/movies/spinner-034.png</file>
+        <file alias="spinner-035">res/movies/spinner-035.png</file>
     </qresource>
 </RCC>
diff --git a/src/qt/bitcoinaddressvalidator.cpp b/src/qt/bitcoinaddressvalidator.cpp
index 293cc168b9..d712705c43 100644
--- a/src/qt/bitcoinaddressvalidator.cpp
+++ b/src/qt/bitcoinaddressvalidator.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "bitcoinaddressvalidator.h"
diff --git a/src/qt/bitcoinaddressvalidator.h b/src/qt/bitcoinaddressvalidator.h
index 15a6245da4..30d4a26d0e 100644
--- a/src/qt/bitcoinaddressvalidator.h
+++ b/src/qt/bitcoinaddressvalidator.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_BITCOINADDRESSVALIDATOR_H
diff --git a/src/qt/bitcoinamountfield.cpp b/src/qt/bitcoinamountfield.cpp
index 5b8ab23b26..d31a1e018b 100644
--- a/src/qt/bitcoinamountfield.cpp
+++ b/src/qt/bitcoinamountfield.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "bitcoinamountfield.h"
@@ -20,6 +20,7 @@
 class AmountSpinBox: public QAbstractSpinBox
 {
     Q_OBJECT
+
 public:
     explicit AmountSpinBox(QWidget *parent):
         QAbstractSpinBox(parent),
@@ -72,23 +73,6 @@ public:
         setValue(val);
     }
 
-    StepEnabled stepEnabled() const
-    {
-        StepEnabled rv = 0;
-        if(text().isEmpty()) // Allow step-up with empty field
-            return StepUpEnabled;
-        bool valid = false;
-        CAmount val = value(&valid);
-        if(valid)
-        {
-            if(val > 0)
-                rv |= StepDownEnabled;
-            if(val < BitcoinUnits::maxMoney())
-                rv |= StepUpEnabled;
-        }
-        return rv;
-    }
-
     void setDisplayUnit(int unit)
     {
         bool valid = false;
@@ -139,6 +123,7 @@ public:
         }
         return cachedMinimumSizeHint;
     }
+
 private:
     int currentUnit;
     CAmount singleStep;
@@ -179,6 +164,26 @@ protected:
         return QAbstractSpinBox::event(event);
     }
 
+    StepEnabled stepEnabled() const
+    {
+        if (isReadOnly()) // Disable steps when AmountSpinBox is read-only
+            return StepNone;
+        if (text().isEmpty()) // Allow step-up with empty field
+            return StepUpEnabled;
+
+        StepEnabled rv = 0;
+        bool valid = false;
+        CAmount val = value(&valid);
+        if(valid)
+        {
+            if(val > 0)
+                rv |= StepDownEnabled;
+            if(val < BitcoinUnits::maxMoney())
+                rv |= StepUpEnabled;
+        }
+        return rv;
+    }
+
 signals:
     void valueChanged();
 };
@@ -273,7 +278,6 @@ void BitcoinAmountField::setValue(const CAmount& value)
 void BitcoinAmountField::setReadOnly(bool fReadOnly)
 {
     amount->setReadOnly(fReadOnly);
-    unit->setEnabled(!fReadOnly);
 }
 
 void BitcoinAmountField::unitChanged(int idx)
diff --git a/src/qt/bitcoinamountfield.h b/src/qt/bitcoinamountfield.h
index 1bad8ce1b8..b047e6c51a 100644
--- a/src/qt/bitcoinamountfield.h
+++ b/src/qt/bitcoinamountfield.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_BITCOINAMOUNTFIELD_H
diff --git a/src/qt/bitcoingui.cpp b/src/qt/bitcoingui.cpp
index 6a457d361f..09f784387e 100644
--- a/src/qt/bitcoingui.cpp
+++ b/src/qt/bitcoingui.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "bitcoingui.h"
@@ -14,6 +14,7 @@
 #include "optionsdialog.h"
 #include "optionsmodel.h"
 #include "rpcconsole.h"
+#include "scicon.h"
 #include "utilitydialog.h"
 
 #ifdef ENABLE_WALLET
@@ -36,7 +37,6 @@
 #include <QDateTime>
 #include <QDesktopWidget>
 #include <QDragEnterEvent>
-#include <QIcon>
 #include <QListWidget>
 #include <QMenuBar>
 #include <QMessageBox>
@@ -76,12 +76,14 @@ BitcoinGUI::BitcoinGUI(const NetworkStyle *networkStyle, QWidget *parent) :
     historyAction(0),
     quitAction(0),
     sendCoinsAction(0),
+    sendCoinsMenuAction(0),
     usedSendingAddressesAction(0),
     usedReceivingAddressesAction(0),
     signMessageAction(0),
     verifyMessageAction(0),
     aboutAction(0),
     receiveCoinsAction(0),
+    receiveCoinsMenuAction(0),
     optionsAction(0),
     toggleHideAction(0),
     encryptWalletAction(0),
@@ -115,8 +117,8 @@ BitcoinGUI::BitcoinGUI(const NetworkStyle *networkStyle, QWidget *parent) :
     }
     windowTitle += " " + networkStyle->getTitleAddText();
 #ifndef Q_OS_MAC
-    QApplication::setWindowIcon(networkStyle->getAppIcon());
-    setWindowIcon(networkStyle->getAppIcon());
+    QApplication::setWindowIcon(networkStyle->getTrayAndWindowIcon());
+    setWindowIcon(networkStyle->getTrayAndWindowIcon());
 #else
     MacDockIconHandler::instance()->setIcon(networkStyle->getAppIcon());
 #endif
@@ -128,7 +130,7 @@ BitcoinGUI::BitcoinGUI(const NetworkStyle *networkStyle, QWidget *parent) :
     setUnifiedTitleAndToolBarOnMac(true);
 #endif
 
-    rpcConsole = new RPCConsole(enableWallet ? this : 0);
+    rpcConsole = new RPCConsole(0);
 #ifdef ENABLE_WALLET
     if(enableWallet)
     {
@@ -162,6 +164,9 @@ BitcoinGUI::BitcoinGUI(const NetworkStyle *networkStyle, QWidget *parent) :
 
     // Create status bar
     statusBar();
+    
+    // Disable size grip because it looks ugly and nobody needs it
+    statusBar()->setSizeGripEnabled(false);
 
     // Status bar notification icons
     QFrame *frameBlocks = new QFrame();
@@ -234,34 +239,44 @@ BitcoinGUI::~BitcoinGUI()
     delete appMenuBar;
     MacDockIconHandler::instance()->setMainWindow(NULL);
 #endif
+
+    delete rpcConsole;
 }
 
 void BitcoinGUI::createActions(const NetworkStyle *networkStyle)
 {
     QActionGroup *tabGroup = new QActionGroup(this);
 
-    overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
+    overviewAction = new QAction(SingleColorIcon(":/icons/overview"), tr("&Overview"), this);
     overviewAction->setStatusTip(tr("Show general overview of wallet"));
     overviewAction->setToolTip(overviewAction->statusTip());
     overviewAction->setCheckable(true);
     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
     tabGroup->addAction(overviewAction);
 
-    sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send"), this);
+    sendCoinsAction = new QAction(SingleColorIcon(":/icons/send"), tr("&Send"), this);
     sendCoinsAction->setStatusTip(tr("Send coins to a Bitcoin address"));
     sendCoinsAction->setToolTip(sendCoinsAction->statusTip());
     sendCoinsAction->setCheckable(true);
     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
     tabGroup->addAction(sendCoinsAction);
 
-    receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive"), this);
+    sendCoinsMenuAction = new QAction(TextColorIcon(":/icons/send"), sendCoinsAction->text(), this);
+    sendCoinsMenuAction->setStatusTip(sendCoinsAction->statusTip());
+    sendCoinsMenuAction->setToolTip(sendCoinsMenuAction->statusTip());
+
+    receiveCoinsAction = new QAction(SingleColorIcon(":/icons/receiving_addresses"), tr("&Receive"), this);
     receiveCoinsAction->setStatusTip(tr("Request payments (generates QR codes and bitcoin: URIs)"));
     receiveCoinsAction->setToolTip(receiveCoinsAction->statusTip());
     receiveCoinsAction->setCheckable(true);
     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
     tabGroup->addAction(receiveCoinsAction);
 
-    historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
+    receiveCoinsMenuAction = new QAction(TextColorIcon(":/icons/receiving_addresses"), receiveCoinsAction->text(), this);
+    receiveCoinsMenuAction->setStatusTip(receiveCoinsAction->statusTip());
+    receiveCoinsMenuAction->setToolTip(receiveCoinsMenuAction->statusTip());
+
+    historyAction = new QAction(SingleColorIcon(":/icons/history"), tr("&Transactions"), this);
     historyAction->setStatusTip(tr("Browse transaction history"));
     historyAction->setToolTip(historyAction->statusTip());
     historyAction->setCheckable(true);
@@ -275,56 +290,56 @@ void BitcoinGUI::createActions(const NetworkStyle *networkStyle)
     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
+    connect(sendCoinsMenuAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
+    connect(sendCoinsMenuAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
+    connect(receiveCoinsMenuAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
+    connect(receiveCoinsMenuAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 #endif // ENABLE_WALLET
 
-    quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
+    quitAction = new QAction(TextColorIcon(":/icons/quit"), tr("E&xit"), this);
     quitAction->setStatusTip(tr("Quit application"));
     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
     quitAction->setMenuRole(QAction::QuitRole);
-    aboutAction = new QAction(networkStyle->getAppIcon(), tr("&About Bitcoin Core"), this);
+    aboutAction = new QAction(TextColorIcon(":/icons/about"), tr("&About Bitcoin Core"), this);
     aboutAction->setStatusTip(tr("Show information about Bitcoin Core"));
     aboutAction->setMenuRole(QAction::AboutRole);
-#if QT_VERSION < 0x050000
-    aboutQtAction = new QAction(QIcon(":/trolltech/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
-#else
-    aboutQtAction = new QAction(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"), tr("About &Qt"), this);
-#endif
+    aboutQtAction = new QAction(TextColorIcon(":/icons/about_qt"), tr("About &Qt"), this);
     aboutQtAction->setStatusTip(tr("Show information about Qt"));
     aboutQtAction->setMenuRole(QAction::AboutQtRole);
-    optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
-    optionsAction->setStatusTip(tr("Modify configuration options for Bitcoin"));
+    optionsAction = new QAction(TextColorIcon(":/icons/options"), tr("&Options..."), this);
+    optionsAction->setStatusTip(tr("Modify configuration options for Bitcoin Core"));
     optionsAction->setMenuRole(QAction::PreferencesRole);
-    toggleHideAction = new QAction(networkStyle->getAppIcon(), tr("&Show / Hide"), this);
+    toggleHideAction = new QAction(TextColorIcon(":/icons/about"), tr("&Show / Hide"), this);
     toggleHideAction->setStatusTip(tr("Show or hide the main Window"));
 
-    encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
+    encryptWalletAction = new QAction(TextColorIcon(":/icons/lock_closed"), tr("&Encrypt Wallet..."), this);
     encryptWalletAction->setStatusTip(tr("Encrypt the private keys that belong to your wallet"));
     encryptWalletAction->setCheckable(true);
-    backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
+    backupWalletAction = new QAction(TextColorIcon(":/icons/filesave"), tr("&Backup Wallet..."), this);
     backupWalletAction->setStatusTip(tr("Backup wallet to another location"));
-    changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase..."), this);
+    changePassphraseAction = new QAction(TextColorIcon(":/icons/key"), tr("&Change Passphrase..."), this);
     changePassphraseAction->setStatusTip(tr("Change the passphrase used for wallet encryption"));
-    signMessageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message..."), this);
+    signMessageAction = new QAction(TextColorIcon(":/icons/edit"), tr("Sign &message..."), this);
     signMessageAction->setStatusTip(tr("Sign messages with your Bitcoin addresses to prove you own them"));
-    verifyMessageAction = new QAction(QIcon(":/icons/transaction_0"), tr("&Verify message..."), this);
+    verifyMessageAction = new QAction(TextColorIcon(":/icons/verify"), tr("&Verify message..."), this);
     verifyMessageAction->setStatusTip(tr("Verify messages to ensure they were signed with specified Bitcoin addresses"));
 
-    openRPCConsoleAction = new QAction(QIcon(":/icons/debugwindow"), tr("&Debug window"), this);
+    openRPCConsoleAction = new QAction(TextColorIcon(":/icons/debugwindow"), tr("&Debug window"), this);
     openRPCConsoleAction->setStatusTip(tr("Open debugging and diagnostic console"));
 
-    usedSendingAddressesAction = new QAction(QIcon(":/icons/address-book"), tr("&Sending addresses..."), this);
+    usedSendingAddressesAction = new QAction(TextColorIcon(":/icons/address-book"), tr("&Sending addresses..."), this);
     usedSendingAddressesAction->setStatusTip(tr("Show the list of used sending addresses and labels"));
-    usedReceivingAddressesAction = new QAction(QIcon(":/icons/address-book"), tr("&Receiving addresses..."), this);
+    usedReceivingAddressesAction = new QAction(TextColorIcon(":/icons/address-book"), tr("&Receiving addresses..."), this);
     usedReceivingAddressesAction->setStatusTip(tr("Show the list of used receiving addresses and labels"));
 
-    openAction = new QAction(QApplication::style()->standardIcon(QStyle::SP_FileIcon), tr("Open &URI..."), this);
+    openAction = new QAction(TextColorIcon(":/icons/open"), tr("Open &URI..."), this);
     openAction->setStatusTip(tr("Open a bitcoin: URI or payment request"));
 
-    showHelpMessageAction = new QAction(QApplication::style()->standardIcon(QStyle::SP_MessageBoxInformation), tr("&Command-line options"), this);
+    showHelpMessageAction = new QAction(TextColorIcon(":/icons/info"), tr("&Command-line options"), this);
     showHelpMessageAction->setStatusTip(tr("Show the Bitcoin Core help message to get a list with possible Bitcoin command-line options"));
 
     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
@@ -477,7 +492,9 @@ void BitcoinGUI::setWalletActionsEnabled(bool enabled)
 {
     overviewAction->setEnabled(enabled);
     sendCoinsAction->setEnabled(enabled);
+    sendCoinsMenuAction->setEnabled(enabled);
     receiveCoinsAction->setEnabled(enabled);
+    receiveCoinsMenuAction->setEnabled(enabled);
     historyAction->setEnabled(enabled);
     encryptWalletAction->setEnabled(enabled);
     backupWalletAction->setEnabled(enabled);
@@ -495,7 +512,7 @@ void BitcoinGUI::createTrayIcon(const NetworkStyle *networkStyle)
     trayIcon = new QSystemTrayIcon(this);
     QString toolTip = tr("Bitcoin Core client") + " " + networkStyle->getTitleAddText();
     trayIcon->setToolTip(toolTip);
-    trayIcon->setIcon(networkStyle->getAppIcon());
+    trayIcon->setIcon(networkStyle->getTrayAndWindowIcon());
     trayIcon->show();
 #endif
 
@@ -524,8 +541,8 @@ void BitcoinGUI::createTrayIconMenu()
     // Configuration of the tray icon (or dock icon) icon menu
     trayIconMenu->addAction(toggleHideAction);
     trayIconMenu->addSeparator();
-    trayIconMenu->addAction(sendCoinsAction);
-    trayIconMenu->addAction(receiveCoinsAction);
+    trayIconMenu->addAction(sendCoinsMenuAction);
+    trayIconMenu->addAction(receiveCoinsMenuAction);
     trayIconMenu->addSeparator();
     trayIconMenu->addAction(signMessageAction);
     trayIconMenu->addAction(verifyMessageAction);
@@ -631,7 +648,7 @@ void BitcoinGUI::setNumConnections(int count)
     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
     default: icon = ":/icons/connect_4"; break;
     }
-    labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
+    labelConnectionsIcon->setPixmap(SingleColorIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 }
 
@@ -673,7 +690,7 @@ void BitcoinGUI::setNumBlocks(int count)
     if(secs < 90*60)
     {
         tooltip = tr("Up to date") + QString(".<br>") + tooltip;
-        labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
+        labelBlocksIcon->setPixmap(SingleColorIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 
 #ifdef ENABLE_WALLET
         if(walletFrame)
@@ -719,7 +736,7 @@ void BitcoinGUI::setNumBlocks(int count)
         tooltip = tr("Catching up...") + QString("<br>") + tooltip;
         if(count != prevBlocks)
         {
-            labelBlocksIcon->setPixmap(QIcon(QString(
+            labelBlocksIcon->setPixmap(SingleColorIcon(QString(
                 ":/movies/spinner-%1").arg(spinnerFrame, 3, 10, QChar('0')))
                 .pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
             spinnerFrame = (spinnerFrame + 1) % SPINNER_FRAMES;
@@ -831,6 +848,9 @@ void BitcoinGUI::closeEvent(QCloseEvent *event)
         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
            !clientModel->getOptionsModel()->getMinimizeOnClose())
         {
+            // close rpcConsole in case it was open to make some space for the shutdown window
+            rpcConsole->close();
+
             QApplication::quit();
         }
     }
@@ -910,7 +930,7 @@ void BitcoinGUI::setEncryptionStatus(int status)
         break;
     case WalletModel::Unlocked:
         labelEncryptionIcon->show();
-        labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
+        labelEncryptionIcon->setPixmap(SingleColorIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
         encryptWalletAction->setChecked(true);
         changePassphraseAction->setEnabled(true);
@@ -918,7 +938,7 @@ void BitcoinGUI::setEncryptionStatus(int status)
         break;
     case WalletModel::Locked:
         labelEncryptionIcon->show();
-        labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
+        labelEncryptionIcon->setPixmap(SingleColorIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
         encryptWalletAction->setChecked(true);
         changePassphraseAction->setEnabled(true);
@@ -1026,6 +1046,16 @@ UnitDisplayStatusBarControl::UnitDisplayStatusBarControl() :
 {
     createContextMenu();
     setToolTip(tr("Unit to show amounts in. Click to select another unit."));
+    QList<BitcoinUnits::Unit> units = BitcoinUnits::availableUnits();
+    int max_width = 0;
+    const QFontMetrics fm(font());
+    foreach (const BitcoinUnits::Unit unit, units)
+    {
+        max_width = qMax(max_width, fm.width(BitcoinUnits::name(unit)));
+    }
+    setMinimumSize(max_width, 0);
+    setAlignment(Qt::AlignRight | Qt::AlignVCenter);
+    setStyleSheet(QString("QLabel { color : %1 }").arg(SingleColor().name()));
 }
 
 /** So that it responds to button clicks */
@@ -1065,7 +1095,7 @@ void UnitDisplayStatusBarControl::setOptionsModel(OptionsModel *optionsModel)
 /** When Display Units are changed on OptionsModel it will refresh the display text of the control on the status bar */
 void UnitDisplayStatusBarControl::updateDisplayUnit(int newUnits)
 {
-    setPixmap(QIcon(":/icons/unit_" + BitcoinUnits::id(newUnits)).pixmap(31,STATUSBAR_ICONSIZE));
+    setText(BitcoinUnits::name(newUnits));
 }
 
 /** Shows context menu with Display Unit options by the mouse coordinates */
diff --git a/src/qt/bitcoingui.h b/src/qt/bitcoingui.h
index 662ef9d9e8..3216a7398e 100644
--- a/src/qt/bitcoingui.h
+++ b/src/qt/bitcoingui.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_BITCOINGUI_H
@@ -90,12 +90,14 @@ private:
     QAction *historyAction;
     QAction *quitAction;
     QAction *sendCoinsAction;
+    QAction *sendCoinsMenuAction;
     QAction *usedSendingAddressesAction;
     QAction *usedReceivingAddressesAction;
     QAction *signMessageAction;
     QAction *verifyMessageAction;
     QAction *aboutAction;
     QAction *receiveCoinsAction;
+    QAction *receiveCoinsMenuAction;
     QAction *optionsAction;
     QAction *toggleHideAction;
     QAction *encryptWalletAction;
diff --git a/src/qt/bitcoinunits.cpp b/src/qt/bitcoinunits.cpp
index 5c542b59ae..425b45d918 100644
--- a/src/qt/bitcoinunits.cpp
+++ b/src/qt/bitcoinunits.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "bitcoinunits.h"
@@ -36,17 +36,6 @@ bool BitcoinUnits::valid(int unit)
     }
 }
 
-QString BitcoinUnits::id(int unit)
-{
-    switch(unit)
-    {
-    case BTC: return QString("btc");
-    case mBTC: return QString("mbtc");
-    case uBTC: return QString("ubtc");
-    default: return QString("???");
-    }
-}
-
 QString BitcoinUnits::name(int unit)
 {
     switch(unit)
diff --git a/src/qt/bitcoinunits.h b/src/qt/bitcoinunits.h
index 7a4f38274d..1871c33a78 100644
--- a/src/qt/bitcoinunits.h
+++ b/src/qt/bitcoinunits.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_BITCOINUNITS_H
@@ -76,8 +76,6 @@ public:
     static QList<Unit> availableUnits();
     //! Is unit ID valid?
     static bool valid(int unit);
-    //! Identifier, e.g. for image names
-    static QString id(int unit);
     //! Short name
     static QString name(int unit);
     //! Longer description
diff --git a/src/qt/clientmodel.cpp b/src/qt/clientmodel.cpp
index aedda49071..03d94f2e13 100644
--- a/src/qt/clientmodel.cpp
+++ b/src/qt/clientmodel.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "clientmodel.h"
@@ -212,14 +212,14 @@ static void ShowProgress(ClientModel *clientmodel, const std::string &title, int
 
 static void NotifyNumConnectionsChanged(ClientModel *clientmodel, int newNumConnections)
 {
-    // Too noisy: qDebug() << "NotifyNumConnectionsChanged : " + QString::number(newNumConnections);
+    // Too noisy: qDebug() << "NotifyNumConnectionsChanged: " + QString::number(newNumConnections);
     QMetaObject::invokeMethod(clientmodel, "updateNumConnections", Qt::QueuedConnection,
                               Q_ARG(int, newNumConnections));
 }
 
 static void NotifyAlertChanged(ClientModel *clientmodel, const uint256 &hash, ChangeType status)
 {
-    qDebug() << "NotifyAlertChanged : " + QString::fromStdString(hash.GetHex()) + " status=" + QString::number(status);
+    qDebug() << "NotifyAlertChanged: " + QString::fromStdString(hash.GetHex()) + " status=" + QString::number(status);
     QMetaObject::invokeMethod(clientmodel, "updateAlert", Qt::QueuedConnection,
                               Q_ARG(QString, QString::fromStdString(hash.GetHex())),
                               Q_ARG(int, status));
diff --git a/src/qt/clientmodel.h b/src/qt/clientmodel.h
index c7a05e287d..4856a72d7d 100644
--- a/src/qt/clientmodel.h
+++ b/src/qt/clientmodel.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_CLIENTMODEL_H
diff --git a/src/qt/coincontroldialog.cpp b/src/qt/coincontroldialog.cpp
index 85b43b7b1f..3f4f082b8c 100644
--- a/src/qt/coincontroldialog.cpp
+++ b/src/qt/coincontroldialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "coincontroldialog.h"
@@ -10,6 +10,7 @@
 #include "guiutil.h"
 #include "init.h"
 #include "optionsmodel.h"
+#include "scicon.h"
 #include "walletmodel.h"
 
 #include "coincontrol.h"
@@ -116,6 +117,10 @@ CoinControlDialog::CoinControlDialog(QWidget *parent) :
     // (un)select all
     connect(ui->pushButtonSelectAll, SIGNAL(clicked()), this, SLOT(buttonSelectAllClicked()));
 
+    // change coin control first column label due Qt4 bug. 
+    // see https://github.com/bitcoin/bitcoin/issues/5716
+    ui->treeWidget->headerItem()->setText(COLUMN_CHECKBOX, QString());
+
     ui->treeWidget->setColumnWidth(COLUMN_CHECKBOX, 84);
     ui->treeWidget->setColumnWidth(COLUMN_AMOUNT, 100);
     ui->treeWidget->setColumnWidth(COLUMN_LABEL, 170);
@@ -212,7 +217,7 @@ void CoinControlDialog::showMenu(const QPoint &point)
         if (item->text(COLUMN_TXHASH).length() == 64) // transaction hash is 64 characters (this means its a child node, so its not a parent node in tree mode)
         {
             copyTransactionHashAction->setEnabled(true);
-            if (model->isLockedCoin(uint256(item->text(COLUMN_TXHASH).toStdString()), item->text(COLUMN_VOUT_INDEX).toUInt()))
+            if (model->isLockedCoin(uint256S(item->text(COLUMN_TXHASH).toStdString()), item->text(COLUMN_VOUT_INDEX).toUInt()))
             {
                 lockAction->setEnabled(false);
                 unlockAction->setEnabled(true);
@@ -271,17 +276,17 @@ void CoinControlDialog::lockCoin()
     if (contextMenuItem->checkState(COLUMN_CHECKBOX) == Qt::Checked)
         contextMenuItem->setCheckState(COLUMN_CHECKBOX, Qt::Unchecked);
 
-    COutPoint outpt(uint256(contextMenuItem->text(COLUMN_TXHASH).toStdString()), contextMenuItem->text(COLUMN_VOUT_INDEX).toUInt());
+    COutPoint outpt(uint256S(contextMenuItem->text(COLUMN_TXHASH).toStdString()), contextMenuItem->text(COLUMN_VOUT_INDEX).toUInt());
     model->lockCoin(outpt);
     contextMenuItem->setDisabled(true);
-    contextMenuItem->setIcon(COLUMN_CHECKBOX, QIcon(":/icons/lock_closed"));
+    contextMenuItem->setIcon(COLUMN_CHECKBOX, SingleColorIcon(":/icons/lock_closed"));
     updateLabelLocked();
 }
 
 // context menu action: unlock coin
 void CoinControlDialog::unlockCoin()
 {
-    COutPoint outpt(uint256(contextMenuItem->text(COLUMN_TXHASH).toStdString()), contextMenuItem->text(COLUMN_VOUT_INDEX).toUInt());
+    COutPoint outpt(uint256S(contextMenuItem->text(COLUMN_TXHASH).toStdString()), contextMenuItem->text(COLUMN_VOUT_INDEX).toUInt());
     model->unlockCoin(outpt);
     contextMenuItem->setDisabled(false);
     contextMenuItem->setIcon(COLUMN_CHECKBOX, QIcon());
@@ -303,19 +308,19 @@ void CoinControlDialog::clipboardAmount()
 // copy label "Fee" to clipboard
 void CoinControlDialog::clipboardFee()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlFee->text().left(ui->labelCoinControlFee->text().indexOf(" ")).replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlFee->text().left(ui->labelCoinControlFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 }
 
 // copy label "After fee" to clipboard
 void CoinControlDialog::clipboardAfterFee()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlAfterFee->text().left(ui->labelCoinControlAfterFee->text().indexOf(" ")).replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlAfterFee->text().left(ui->labelCoinControlAfterFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 }
 
 // copy label "Bytes" to clipboard
 void CoinControlDialog::clipboardBytes()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlBytes->text().replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlBytes->text().replace(ASYMP_UTF8, ""));
 }
 
 // copy label "Priority" to clipboard
@@ -333,7 +338,7 @@ void CoinControlDialog::clipboardLowOutput()
 // copy label "Change" to clipboard
 void CoinControlDialog::clipboardChange()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlChange->text().left(ui->labelCoinControlChange->text().indexOf(" ")).replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlChange->text().left(ui->labelCoinControlChange->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 }
 
 // treeview: sort
@@ -387,7 +392,7 @@ void CoinControlDialog::viewItemChanged(QTreeWidgetItem* item, int column)
 {
     if (column == COLUMN_CHECKBOX && item->text(COLUMN_TXHASH).length() == 64) // transaction hash is 64 characters (this means its a child node, so its not a parent node in tree mode)
     {
-        COutPoint outpt(uint256(item->text(COLUMN_TXHASH).toStdString()), item->text(COLUMN_VOUT_INDEX).toUInt());
+        COutPoint outpt(uint256S(item->text(COLUMN_TXHASH).toStdString()), item->text(COLUMN_VOUT_INDEX).toUInt());
 
         if (item->checkState(COLUMN_CHECKBOX) == Qt::Unchecked)
             coinControl->UnSelect(outpt);
@@ -599,16 +604,16 @@ void CoinControlDialog::updateLabels(WalletModel *model, QDialog* dialog)
     l2->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAmount));        // Amount
     l3->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nPayFee));        // Fee
     l4->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nAfterFee));      // After Fee
-    l5->setText(((nBytes > 0) ? "~" : "") + QString::number(nBytes));        // Bytes
+    l5->setText(((nBytes > 0) ? ASYMP_UTF8 : "") + QString::number(nBytes));        // Bytes
     l6->setText(sPriorityLabel);                                             // Priority
     l7->setText(fDust ? tr("yes") : tr("no"));                               // Dust
     l8->setText(BitcoinUnits::formatWithUnit(nDisplayUnit, nChange));        // Change
     if (nPayFee > 0 && !(payTxFee.GetFeePerK() > 0 && fPayAtLeastCustomFee && nBytes < 1000))
     {
-        l3->setText("~" + l3->text());
-        l4->setText("~" + l4->text());
+        l3->setText(ASYMP_UTF8 + l3->text());
+        l4->setText(ASYMP_UTF8 + l4->text());
         if (nChange > 0)
-            l8->setText("~" + l8->text());
+            l8->setText(ASYMP_UTF8 + l8->text());
     }
 
     // turn labels "red"
@@ -776,7 +781,7 @@ void CoinControlDialog::updateView()
                 COutPoint outpt(txhash, out.i);
                 coinControl->UnSelect(outpt); // just to be sure
                 itemOutput->setDisabled(true);
-                itemOutput->setIcon(COLUMN_CHECKBOX, QIcon(":/icons/lock_closed"));
+                itemOutput->setIcon(COLUMN_CHECKBOX, SingleColorIcon(":/icons/lock_closed"));
             }
 
             // set checkbox
diff --git a/src/qt/coincontroldialog.h b/src/qt/coincontroldialog.h
index bd4f5d7f1e..5a91876f1f 100644
--- a/src/qt/coincontroldialog.h
+++ b/src/qt/coincontroldialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_COINCONTROLDIALOG_H
@@ -25,6 +25,8 @@ namespace Ui {
     class CoinControlDialog;
 }
 
+#define ASYMP_UTF8 "\xE2\x89\x88"
+
 class CoinControlDialog : public QDialog
 {
     Q_OBJECT
diff --git a/src/qt/coincontroltreewidget.cpp b/src/qt/coincontroltreewidget.cpp
index 907b5caa05..5dcbf0c3f1 100644
--- a/src/qt/coincontroltreewidget.cpp
+++ b/src/qt/coincontroltreewidget.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "coincontroltreewidget.h"
@@ -17,7 +17,8 @@ void CoinControlTreeWidget::keyPressEvent(QKeyEvent *event)
     {
         event->ignore();
         int COLUMN_CHECKBOX = 0;
-        this->currentItem()->setCheckState(COLUMN_CHECKBOX, ((this->currentItem()->checkState(COLUMN_CHECKBOX) == Qt::Checked) ? Qt::Unchecked : Qt::Checked));
+        if(this->currentItem())
+            this->currentItem()->setCheckState(COLUMN_CHECKBOX, ((this->currentItem()->checkState(COLUMN_CHECKBOX) == Qt::Checked) ? Qt::Unchecked : Qt::Checked));
     }
     else if (event->key() == Qt::Key_Escape) // press esc -> close dialog
     {
@@ -29,4 +30,4 @@ void CoinControlTreeWidget::keyPressEvent(QKeyEvent *event)
     {
         this->QTreeWidget::keyPressEvent(event);
     }
-}
-\ No newline at end of file
+}
diff --git a/src/qt/coincontroltreewidget.h b/src/qt/coincontroltreewidget.h
index 643eaf0c70..98a7d32f05 100644
--- a/src/qt/coincontroltreewidget.h
+++ b/src/qt/coincontroltreewidget.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_COINCONTROLTREEWIDGET_H
diff --git a/src/qt/csvmodelwriter.cpp b/src/qt/csvmodelwriter.cpp
index ac8c6b41d4..55c5957088 100644
--- a/src/qt/csvmodelwriter.cpp
+++ b/src/qt/csvmodelwriter.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "csvmodelwriter.h"
diff --git a/src/qt/csvmodelwriter.h b/src/qt/csvmodelwriter.h
index c613ce73eb..a2bf379f4e 100644
--- a/src/qt/csvmodelwriter.h
+++ b/src/qt/csvmodelwriter.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_CSVMODELWRITER_H
diff --git a/src/qt/editaddressdialog.cpp b/src/qt/editaddressdialog.cpp
index 46982cc339..1c22594cd7 100644
--- a/src/qt/editaddressdialog.cpp
+++ b/src/qt/editaddressdialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "editaddressdialog.h"
diff --git a/src/qt/editaddressdialog.h b/src/qt/editaddressdialog.h
index aa1103a2f5..13c6da8eda 100644
--- a/src/qt/editaddressdialog.h
+++ b/src/qt/editaddressdialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_EDITADDRESSDIALOG_H
diff --git a/src/qt/forms/addressbookpage.ui b/src/qt/forms/addressbookpage.ui
index 52fdc6ef06..264edeb720 100644
--- a/src/qt/forms/addressbookpage.ui
+++ b/src/qt/forms/addressbookpage.ui
@@ -27,7 +27,7 @@
       <enum>Qt::CustomContextMenu</enum>
      </property>
      <property name="toolTip">
-      <string>Double-click to edit address or label</string>
+      <string>Right-click to edit address or label</string>
      </property>
      <property name="tabKeyNavigation">
       <bool>false</bool>
diff --git a/src/qt/forms/helpmessagedialog.ui b/src/qt/forms/helpmessagedialog.ui
index 81dbd90b12..37008f047e 100644
--- a/src/qt/forms/helpmessagedialog.ui
+++ b/src/qt/forms/helpmessagedialog.ui
@@ -6,35 +6,24 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>800</width>
+    <width>780</width>
     <height>400</height>
    </rect>
   </property>
-  <property name="font">
-   <font>
-    <pointsize>10</pointsize>
-   </font>
-  </property>
   <property name="windowTitle">
    <string notr="true">Bitcoin Core - Command-line options</string>
   </property>
   <layout class="QHBoxLayout" name="horizontalLayout_2">
    <item>
-    <widget class="QLabel" name="graphic">
-     <property name="sizePolicy">
-      <sizepolicy hsizetype="Preferred" vsizetype="Ignored">
-       <horstretch>0</horstretch>
-       <verstretch>0</verstretch>
-      </sizepolicy>
-     </property>
-     <property name="pixmap">
-      <pixmap resource="../bitcoin.qrc">:/images/about</pixmap>
-     </property>
-    </widget>
-   </item>
-   <item>
     <layout class="QVBoxLayout" name="verticalLayout">
      <item>
+      <widget class="QTextEdit" name="helpMessage">
+       <property name="readOnly">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item>
       <widget class="QScrollArea" name="scrollArea">
        <property name="verticalScrollBarPolicy">
         <enum>Qt::ScrollBarAlwaysOn</enum>
@@ -43,23 +32,18 @@
         <bool>true</bool>
        </property>
        <widget class="QWidget" name="scrollAreaWidgetContents">
-        <property name="geometry">
-         <rect>
-          <x>0</x>
-          <y>0</y>
-          <width>659</width>
-          <height>348</height>
-         </rect>
-        </property>
         <layout class="QVBoxLayout" name="verticalLayout_2">
          <item>
-          <widget class="QLabel" name="helpMessageLabel">
+          <widget class="QLabel" name="aboutMessage">
            <property name="cursor">
             <cursorShape>IBeamCursor</cursorShape>
            </property>
            <property name="textFormat">
             <enum>Qt::PlainText</enum>
            </property>
+           <property name="alignment">
+            <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+           </property>
            <property name="openExternalLinks">
             <bool>true</bool>
            </property>
diff --git a/src/qt/forms/optionsdialog.ui b/src/qt/forms/optionsdialog.ui
index 51156ade4f..55c4f5ac58 100644
--- a/src/qt/forms/optionsdialog.ui
+++ b/src/qt/forms/optionsdialog.ui
@@ -30,10 +30,10 @@
        <item>
         <widget class="QCheckBox" name="bitcoinAtStartup">
          <property name="toolTip">
-          <string>Automatically start Bitcoin after logging in to the system.</string>
+          <string>Automatically start Bitcoin Core after logging in to the system.</string>
          </property>
          <property name="text">
-          <string>&amp;Start Bitcoin on system login</string>
+          <string>&amp;Start Bitcoin Core on system login</string>
          </property>
         </widget>
        </item>
@@ -330,7 +330,7 @@
        <item>
         <widget class="QCheckBox" name="minimizeOnClose">
          <property name="toolTip">
-          <string>Minimize instead of exit the application when the window is closed. When this option is enabled, the application will be closed only after selecting Quit in the menu.</string>
+          <string>Minimize instead of exit the application when the window is closed. When this option is enabled, the application will be closed only after selecting Exit in the menu.</string>
          </property>
          <property name="text">
           <string>M&amp;inimize on close</string>
@@ -375,7 +375,7 @@
          <item>
           <widget class="QValueComboBox" name="lang">
            <property name="toolTip">
-            <string>The user interface language can be set here. This setting will take effect after restarting Bitcoin.</string>
+            <string>The user interface language can be set here. This setting will take effect after restarting Bitcoin Core.</string>
            </property>
           </widget>
          </item>
diff --git a/src/qt/forms/rpcconsole.ui b/src/qt/forms/rpcconsole.ui
index c5ac371619..c1eb185501 100644
--- a/src/qt/forms/rpcconsole.ui
+++ b/src/qt/forms/rpcconsole.ui
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>RPCConsole</class>
- <widget class="QDialog" name="RPCConsole">
+ <widget class="QWidget" name="RPCConsole">
   <property name="geometry">
    <rect>
     <x>0</x>
@@ -331,7 +331,7 @@
        <item row="15" column="0">
         <widget class="QPushButton" name="openDebugLogfileButton">
          <property name="toolTip">
-          <string>Open the Bitcoin debug log file from the current data directory. This can take a few seconds for large log files.</string>
+          <string>Open the Bitcoin Core debug log file from the current data directory. This can take a few seconds for large log files.</string>
          </property>
          <property name="text">
           <string>&amp;Open</string>
@@ -1043,7 +1043,30 @@
             </property>
            </widget>
           </item>
-          <item row="14" column="1">
+          <item row="14" column="0">
+           <widget class="QLabel" name="label_timeoffset">
+            <property name="text">
+             <string>Time Offset</string>
+            </property>
+           </widget>
+          </item>
+          <item row="14" column="2">
+           <widget class="QLabel" name="timeoffset">
+            <property name="cursor">
+             <cursorShape>IBeamCursor</cursorShape>
+            </property>
+            <property name="text">
+             <string>N/A</string>
+            </property>
+            <property name="textFormat">
+             <enum>Qt::PlainText</enum>
+            </property>
+            <property name="textInteractionFlags">
+             <set>Qt::LinksAccessibleByMouse|Qt::TextSelectableByKeyboard|Qt::TextSelectableByMouse</set>
+            </property>
+           </widget>
+          </item>
+          <item row="15" column="1">
            <spacer name="verticalSpacer_3">
             <property name="orientation">
              <enum>Qt::Vertical</enum>
diff --git a/src/qt/forms/sendcoinsdialog.ui b/src/qt/forms/sendcoinsdialog.ui
index 0bf04c75eb..eebb459327 100644
--- a/src/qt/forms/sendcoinsdialog.ui
+++ b/src/qt/forms/sendcoinsdialog.ui
@@ -855,7 +855,7 @@
                  <item>
                   <widget class="QRadioButton" name="radioCustomPerKilobyte">
                    <property name="toolTip">
-                    <string>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then &quot;per kilobyte&quot; only pays 250 satoshis in fee, while &quot;at least&quot; pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</string>
+                    <string>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then &quot;per kilobyte&quot; only pays 250 satoshis in fee, while &quot;total at least&quot; pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</string>
                    </property>
                    <property name="text">
                     <string>per kilobyte</string>
diff --git a/src/qt/forms/sendcoinsentry.ui b/src/qt/forms/sendcoinsentry.ui
index 9d829970f0..9f8c0a4844 100644
--- a/src/qt/forms/sendcoinsentry.ui
+++ b/src/qt/forms/sendcoinsentry.ui
@@ -67,6 +67,12 @@
          <iconset resource="../bitcoin.qrc">
           <normaloff>:/icons/address-book</normaloff>:/icons/address-book</iconset>
         </property>
+        <property name="iconSize">
+         <size>
+          <width>22</width>
+          <height>22</height>
+         </size>
+        </property>
         <property name="shortcut">
          <string>Alt+A</string>
         </property>
@@ -84,6 +90,12 @@
          <iconset resource="../bitcoin.qrc">
           <normaloff>:/icons/editpaste</normaloff>:/icons/editpaste</iconset>
         </property>
+        <property name="iconSize">
+         <size>
+          <width>22</width>
+          <height>22</height>
+         </size>
+        </property>
         <property name="shortcut">
          <string>Alt+P</string>
         </property>
@@ -101,6 +113,12 @@
          <iconset resource="../bitcoin.qrc">
           <normaloff>:/icons/remove</normaloff>:/icons/remove</iconset>
         </property>
+        <property name="iconSize">
+         <size>
+          <width>22</width>
+          <height>22</height>
+         </size>
+        </property>
        </widget>
       </item>
      </layout>
diff --git a/src/qt/forms/signverifymessagedialog.ui b/src/qt/forms/signverifymessagedialog.ui
index 40b2da3228..92f6430c51 100644
--- a/src/qt/forms/signverifymessagedialog.ui
+++ b/src/qt/forms/signverifymessagedialog.ui
@@ -30,7 +30,7 @@
        <item>
         <widget class="QLabel" name="infoLabel_SM">
          <property name="text">
-          <string>You can sign messages with your addresses to prove you own them. Be careful not to sign anything vague, as phishing attacks may try to trick you into signing your identity over to them. Only sign fully-detailed statements you agree to.</string>
+          <string>You can sign messages/agreements with your addresses to prove you can receive bitcoins sent to them. Be careful not to sign anything vague or random, as phishing attacks may try to trick you into signing your identity over to them. Only sign fully-detailed statements you agree to.</string>
          </property>
          <property name="textFormat">
           <enum>Qt::PlainText</enum>
@@ -237,7 +237,7 @@
        <item>
         <widget class="QLabel" name="infoLabel_VM">
          <property name="text">
-          <string>Enter the signing address, message (ensure you copy line breaks, spaces, tabs, etc. exactly) and signature below to verify the message. Be careful not to read more into the signature than what is in the signed message itself, to avoid being tricked by a man-in-the-middle attack.</string>
+          <string>Enter the receiver's address, message (ensure you copy line breaks, spaces, tabs, etc. exactly) and signature below to verify the message. Be careful not to read more into the signature than what is in the signed message itself, to avoid being tricked by a man-in-the-middle attack. Note that this only proves the signing party receives with the address, it cannot prove sendership of any transaction!</string>
          </property>
          <property name="textFormat">
           <enum>Qt::PlainText</enum>
diff --git a/src/qt/guiconstants.h b/src/qt/guiconstants.h
index f23175049a..a0a2993ea3 100644
--- a/src/qt/guiconstants.h
+++ b/src/qt/guiconstants.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_GUICONSTANTS_H
@@ -38,9 +38,6 @@ static const int TOOLTIP_WRAP_THRESHOLD = 80;
 /* Maximum allowed URI length */
 static const int MAX_URI_LENGTH = 255;
 
-/* Maximum somewhat-sane size of a payment request file */
-static const int MAX_PAYMENT_REQUEST_SIZE = 50000; // bytes
-
 /* QRCodeDialog -- size of exported QR Code image */
 #define EXPORT_IMAGE_SIZE 256
 
diff --git a/src/qt/guiutil.cpp b/src/qt/guiutil.cpp
index a1ae756c43..2a13f43ea4 100644
--- a/src/qt/guiutil.cpp
+++ b/src/qt/guiutil.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "guiutil.h"
@@ -67,6 +67,9 @@ static boost::filesystem::detail::utf8_codecvt_facet utf8;
 
 #if defined(Q_OS_MAC)
 extern double NSAppKitVersionNumber;
+#if !defined(NSAppKitVersionNumber10_8)
+#define NSAppKitVersionNumber10_8 1187
+#endif
 #if !defined(NSAppKitVersionNumber10_9)
 #define NSAppKitVersionNumber10_9 1265
 #endif
@@ -383,7 +386,7 @@ void openDebugLogfile()
         QDesktopServices::openUrl(QUrl::fromLocalFile(boostPathToQString(pathDebug)));
 }
 
-void SubstituteFonts()
+void SubstituteFonts(const QString& language)
 {
 #if defined(Q_OS_MAC)
 // Background:
@@ -393,12 +396,28 @@ void SubstituteFonts()
 // If this fallback is not properly loaded, some characters may fail to
 // render correctly.
 //
+// The same thing happened with 10.10. .Helvetica Neue DeskInterface is now default.
+//
 // Solution: If building with the 10.7 SDK or lower and the user's platform
 // is 10.9 or higher at runtime, substitute the correct font. This needs to
 // happen before the QApplication is created.
 #if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_8
-    if (floor(NSAppKitVersionNumber) >= NSAppKitVersionNumber10_9)
-        QFont::insertSubstitution(".Lucida Grande UI", "Lucida Grande");
+    if (floor(NSAppKitVersionNumber) > NSAppKitVersionNumber10_8)
+    {
+        if (floor(NSAppKitVersionNumber) <= NSAppKitVersionNumber10_9)
+            /* On a 10.9 - 10.9.x system */
+            QFont::insertSubstitution(".Lucida Grande UI", "Lucida Grande");
+        else
+        {
+            /* 10.10 or later system */
+            if (language == "zh_CN" || language == "zh_TW" || language == "zh_HK") // traditional or simplified Chinese
+              QFont::insertSubstitution(".Helvetica Neue DeskInterface", "Heiti SC");
+            else if (language == "ja") // Japanesee
+              QFont::insertSubstitution(".Helvetica Neue DeskInterface", "Songti SC");
+            else
+              QFont::insertSubstitution(".Helvetica Neue DeskInterface", "Lucida Grande");
+        }
+    }
 #endif
 #endif
 }
@@ -696,7 +715,18 @@ LSSharedFileListItemRef findStartupItemInList(LSSharedFileListRef list, CFURLRef
         LSSharedFileListItemRef item = (LSSharedFileListItemRef)CFArrayGetValueAtIndex(listSnapshot, i);
         UInt32 resolutionFlags = kLSSharedFileListNoUserInteraction | kLSSharedFileListDoNotMountVolumes;
         CFURLRef currentItemURL = NULL;
-        LSSharedFileListItemResolve(item, resolutionFlags, &currentItemURL, NULL);
+
+#if defined(MAC_OS_X_VERSION_MAX_ALLOWED) && MAC_OS_X_VERSION_MAX_ALLOWED >= 10100
+	if(&LSSharedFileListItemCopyResolvedURL)
+	    currentItemURL = LSSharedFileListItemCopyResolvedURL(item, resolutionFlags, NULL);
+#if defined(MAC_OS_X_VERSION_MIN_REQUIRED) && MAC_OS_X_VERSION_MIN_REQUIRED < 10100
+	else
+	    LSSharedFileListItemResolve(item, resolutionFlags, &currentItemURL, NULL);
+#endif
+#else
+	LSSharedFileListItemResolve(item, resolutionFlags, &currentItemURL, NULL);
+#endif
+
         if(currentItemURL && CFEqual(currentItemURL, findUrl)) {
             // found
             CFRelease(currentItemURL);
@@ -843,4 +873,9 @@ QString formatPingTime(double dPingTime)
     return dPingTime == 0 ? QObject::tr("N/A") : QString(QObject::tr("%1 ms")).arg(QString::number((int)(dPingTime * 1000), 10));
 }
 
+QString formatTimeOffset(int64_t nTimeOffset)
+{
+  return QString(QObject::tr("%1 s")).arg(QString::number((int)nTimeOffset, 10));
+}
+
 } // namespace GUIUtil
diff --git a/src/qt/guiutil.h b/src/qt/guiutil.h
index 09c79db2d9..bcbb540c37 100644
--- a/src/qt/guiutil.h
+++ b/src/qt/guiutil.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_GUIUTIL_H
@@ -107,7 +107,7 @@ namespace GUIUtil
     void openDebugLogfile();
 
     // Replace invalid default fonts with known good ones
-    void SubstituteFonts();
+    void SubstituteFonts(const QString& language);
 
     /** Qt event filter that intercepts ToolTipChange events, and replaces the tooltip with a rich text
       representation if needed. This assures that Qt can word-wrap long tooltip messages.
@@ -188,7 +188,10 @@ namespace GUIUtil
 
     /* Format a CNodeCombinedStats.dPingTime into a user-readable string or display N/A, if 0*/
     QString formatPingTime(double dPingTime);
-    
+
+    /* Format a CNodeCombinedStats.nTimeOffset into a user-readable string. */
+    QString formatTimeOffset(int64_t nTimeOffset);
+
 #if defined(Q_OS_MAC) && QT_VERSION >= 0x050000
     // workaround for Qt OSX Bug:
     // https://bugreports.qt-project.org/browse/QTBUG-15631
diff --git a/src/qt/intro.cpp b/src/qt/intro.cpp
index 7618bff69d..9f72602b4d 100644
--- a/src/qt/intro.cpp
+++ b/src/qt/intro.cpp
@@ -1,11 +1,12 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "intro.h"
 #include "ui_intro.h"
 
 #include "guiutil.h"
+#include "scicon.h"
 
 #include "util.h"
 
@@ -95,7 +96,7 @@ void FreespaceChecker::check()
                 replyMessage = tr("Path already exists, and is not a directory.");
             }
         }
-    } catch(fs::filesystem_error &e)
+    } catch (const fs::filesystem_error&)
     {
         /* Parent directory does not exist or is not accessible */
         replyStatus = ST_ERROR;
@@ -167,7 +168,7 @@ void Intro::pickDataDirectory()
         /* If current default data directory does not exist, let the user choose one */
         Intro intro;
         intro.setDataDirectory(dataDir);
-        intro.setWindowIcon(QIcon(":icons/bitcoin"));
+        intro.setWindowIcon(SingleColorIcon(":icons/bitcoin"));
 
         while(true)
         {
@@ -180,7 +181,7 @@ void Intro::pickDataDirectory()
             try {
                 TryCreateDirectory(GUIUtil::qstringToBoostPath(dataDir));
                 break;
-            } catch(fs::filesystem_error &e) {
+            } catch (const fs::filesystem_error&) {
                 QMessageBox::critical(0, tr("Bitcoin Core"),
                     tr("Error: Specified data directory \"%1\" cannot be created.").arg(dataDir));
                 /* fall through, back to choosing screen */
diff --git a/src/qt/intro.h b/src/qt/intro.h
index c9c0d448fa..c9735615b6 100644
--- a/src/qt/intro.h
+++ b/src/qt/intro.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_INTRO_H
diff --git a/src/qt/locale/bitcoin_de.ts b/src/qt/locale/bitcoin_de.ts
index 9462f668d3..2804d2d665 100644
--- a/src/qt/locale/bitcoin_de.ts
+++ b/src/qt/locale/bitcoin_de.ts
@@ -1856,14 +1856,26 @@ Adresse: %4</translation>
         <translation>Minimieren</translation>
     </message>
     <message>
+        <source>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then "per kilobyte" only pays 250 satoshis in fee, while "at least" pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</source>
+        <translation>Wenn die benutzerdefinierte Gebühr 1000 Satoshis beträgt und die Transaktion nur 250 Byte groß ist, wird bei Auswahl von "pro Kilobyte" eine Gebühr in Höhe von 250 Satoshis, bei Auswahl von "Mindestbetrag" eine Gebühr in Höhe von 1000 Satoshis bezahlt. Bei Transaktionen die Größer als ein Kilobyte sind, werden bei beiden Optionen die Gebühren pro Kilobyte bezahlt.</translation>
+    </message>
+    <message>
         <source>per kilobyte</source>
         <translation>pro Kilobyte</translation>
     </message>
     <message>
+        <source>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then "per kilobyte" only pays 250 satoshis in fee, while "total at least" pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</source>
+        <translation>Wenn die benutzerdefinierte Gebühr 1000 Satoshis beträgt und die Transaktion nur 250 Byte groß ist, wird bei Auswahl von "pro Kilobyte" eine Gebühr in Höhe von 250 Satoshis, bei Auswahl von "Mindestbetrag" eine Gebühr in Höhe von 1000 Satoshis bezahlt. Bei Transaktionen die Größer als ein Kilobyte sind, werden bei beiden Optionen die Gebühren pro Kilobyte bezahlt.</translation>
+    </message>
+    <message>
         <source>total at least</source>
         <translation>Mindestbetrag</translation>
     </message>
     <message>
+        <source>Paying only the minimum fee is just fine as long as there is less transaction volume than space in the blocks. But be aware that this can end up in a never confirming transaction once there is more demand for bitcoin transactions than the network can process.</source>
+        <translation>Nur die minimale Gebühr zu bezahlen ist so lange in Ordnung, wie weniger Transaktionsvolumen als Platz in den Blöcken vorhanden ist. Aber Vorsicht, diese Option kann dazu führen, dass Transaktionen nicht bestätigt werden, wenn mehr Bedarf an Bitcoin-Transaktionen besteht als das Netzwerk verarbeiten kann.</translation>
+    </message>
+    <message>
         <source>(read the tooltip)</source>
         <translation>(den Hinweistext lesen)</translation>
     </message>
@@ -2822,6 +2834,10 @@ zum Beispiel: alertnotify=echo %%s | mail -s \"Bitcoin Alert\" admin@foo.com
         <translation>Alle Wallet-Transaktionen löschen und nur diese Teilbereiche der Blockkette durch -rescan beim Starten wiederherstellen</translation>
     </message>
     <message>
+        <source>Distributed under the MIT software license, see the accompanying file COPYING or &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</source>
+        <translation>Veröffentlicht unter der MIT-Softwarelizenz, siehe beiligende Datei COPYING oder &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</translation>
+    </message>
+    <message>
         <source>Enter regression test mode, which uses a special chain in which blocks can be solved instantly.</source>
         <translation>Regressionstest-Modus aktivieren, der eine spezielle Blockkette nutzt, in der Blöcke sofort gelöst werden können.</translation>
     </message>
diff --git a/src/qt/locale/bitcoin_el_GR.ts b/src/qt/locale/bitcoin_el_GR.ts
index 1a1c918c5b..cf29c222ed 100644
--- a/src/qt/locale/bitcoin_el_GR.ts
+++ b/src/qt/locale/bitcoin_el_GR.ts
@@ -7,7 +7,7 @@
     </message>
     <message>
         <source>Create a new address</source>
-        <translation>Δημιούργησε νέα διεύθυνση</translation>
+        <translation>Δημιουργία νέας διεύθυνσης</translation>
     </message>
     <message>
         <source>&amp;New</source>
@@ -54,6 +54,10 @@
         <translation>Επιλογή διεύθυνσης απ' όπου θα ληφθούν νομίσματα</translation>
     </message>
     <message>
+        <source>C&amp;hoose</source>
+        <translation>Ε&amp;πιλογή</translation>
+    </message>
+    <message>
         <source>Sending addresses</source>
         <translation>Διευθύνσεις αποστολής</translation>
     </message>
@@ -66,6 +70,10 @@
         <translation>Αυτές είναι οι Bitcoin διευθύνσεις σας για να λαμβάνετε πληρωμές. Δίνοντας μία ξεχωριστή διεύθυνση σε κάθε αποστολέα, θα μπορείτε να ελέγχετε ποιος σας πληρώνει.</translation>
     </message>
     <message>
+        <source>These are your Bitcoin addresses for receiving payments. It is recommended to use a new receiving address for each transaction.</source>
+        <translation>Αυτές είναι οι Bitcoin διευθύνσεις σας για να λαμβάνετε πληρωμές. Δίνοντας μία ξεχωριστή διεύθυνση σε κάθε αποστολέα, θα μπορείτε να ελέγχετε ποιος σας πληρώνει.</translation>
+    </message>
+    <message>
         <source>Copy &amp;Label</source>
         <translation>Αντιγραφή &amp;επιγραφής</translation>
     </message>
@@ -85,7 +93,11 @@
         <source>Exporting Failed</source>
         <translation>Η εξαγωγή απέτυχε</translation>
     </message>
-    </context>
+    <message>
+        <source>There was an error trying to save the address list to %1. Please try again.</source>
+        <translation>Παρουσιάστηκε σφάλμα κατά την αποθήκευση της λίστας πορτοφολιών στο %1. Παρακαλώ δοκιμάστε ξανά</translation>
+    </message>
+</context>
 <context>
     <name>AddressTableModel</name>
     <message>
@@ -113,7 +125,7 @@
     </message>
     <message>
         <source>New passphrase</source>
-        <translation>Νέος κωδικός πρόσβασης</translation>
+        <translation>&amp;Αλλαγή κωδικού</translation>
     </message>
     <message>
         <source>Repeat new passphrase</source>
@@ -121,7 +133,7 @@
     </message>
     <message>
         <source>Encrypt wallet</source>
-        <translation>Κρυπτογράφησε το πορτοφόλι</translation>
+        <translation>&amp;Κρυπτογράφηση πορτοφολιού</translation>
     </message>
     <message>
         <source>This operation needs your wallet passphrase to unlock the wallet.</source>
@@ -173,6 +185,10 @@
         <translation>Κρυπτογραφημενο πορτοφολι</translation>
     </message>
     <message>
+        <source>Enter the new passphrase to the wallet.&lt;br/&gt;Please use a passphrase of &lt;b&gt;ten or more random characters&lt;/b&gt;, or &lt;b&gt;eight or more words&lt;/b&gt;.</source>
+        <translation>Εισάγετε τον νέο κωδικό πρόσβασης στον πορτοφόλι &lt;br/&gt; Παρακαλώ χρησιμοποιείστε ένα κωδικό με &lt;b&gt; 10 ή περισσότερους τυχαίους χαρακτήρες&lt;/b&gt; ή &lt;b&gt; οχτώ ή παραπάνω λέξεις&lt;/b&gt;.</translation>
+    </message>
+    <message>
         <source>Bitcoin will close now to finish the encryption process. Remember that encrypting your wallet cannot fully protect your bitcoins from being stolen by malware infecting your computer.</source>
         <translation>Το Bitcoin θα κλεισει τώρα για να τελειώσει την διαδικασία κρυπτογραφησης. Θυμησου ότι κρυπτογραφώντας το πορτοφολι σου δεν μπορείς να προστατέψεις πλήρως τα bitcoins σου από κλοπή στην περίπτωση όπου μολυνθεί ο υπολογιστής σου με κακόβουλο λογισμικό.</translation>
     </message>
@@ -220,6 +236,10 @@
         <translation>&amp;Επισκόπηση</translation>
     </message>
     <message>
+        <source>Node</source>
+        <translation>Κόμβος</translation>
+    </message>
+    <message>
         <source>Show general overview of wallet</source>
         <translation>Εμφάνισε τη γενική εικόνα του πορτοφολιού</translation>
     </message>
@@ -264,6 +284,22 @@
         <translation>&amp;Άλλαξε κωδικο πρόσβασης</translation>
     </message>
     <message>
+        <source>&amp;Sending addresses...</source>
+        <translation>Διευθύνσεις αποστολής</translation>
+    </message>
+    <message>
+        <source>&amp;Receiving addresses...</source>
+        <translation>Διευθύνσεις λήψης</translation>
+    </message>
+    <message>
+        <source>Open &amp;URI...</source>
+        <translation>'Ανοιγμα &amp;URI</translation>
+    </message>
+    <message>
+        <source>Bitcoin Core client</source>
+        <translation>Εφαρμογή Bitcoin Core</translation>
+    </message>
+    <message>
         <source>Importing blocks from disk...</source>
         <translation>Εισαγωγή μπλοκ από τον σκληρο δίσκο ... </translation>
     </message>
@@ -316,6 +352,10 @@
         <translation>&amp;Παραλαβή </translation>
     </message>
     <message>
+        <source>Show information about Bitcoin Core</source>
+        <translation>Σχετικά με το Bitcoin Core</translation>
+    </message>
+    <message>
         <source>&amp;Show / Hide</source>
         <translation>&amp;Εμφάνισε/Κρύψε</translation>
     </message>
@@ -371,6 +411,18 @@
         <source>Show the list of used receiving addresses and labels</source>
         <translation>Προβολή της λίστας των χρησιμοποιημένων διευθύνσεων και ετικετών λήψεως</translation>
     </message>
+    <message>
+        <source>Open a bitcoin: URI or payment request</source>
+        <translation>Άνοιγμα bitcoin: URI αίτησης πληρωμής</translation>
+    </message>
+    <message>
+        <source>&amp;Command-line options</source>
+        <translation>&amp;Επιλογές γραμμής εντολών</translation>
+    </message>
+    <message>
+        <source>Show the Bitcoin Core help message to get a list with possible Bitcoin command-line options</source>
+        <translation>Εμφανιση του Bitcoin-Qt μήνυματος βοήθειας για να πάρετε μια λίστα με τις πιθανές επιλογές Bitcoin γραμμής εντολών.</translation>
+    </message>
     <message numerus="yes">
         <source>%n active connection(s) to Bitcoin network</source>
         <translation><numerusform>%n ενεργή σύνδεση στο δίκτυο Bitcoin</numerusform><numerusform>%n ενεργές συνδέσεις στο δίκτυο Βitcoin</numerusform></translation>
@@ -470,6 +522,10 @@ Address: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>Επιλογή κερμάτων</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>Ποσότητα:</translation>
     </message>
@@ -486,6 +542,18 @@ Address: %4
         <translation>Προτεραιότητα:</translation>
     </message>
     <message>
+        <source>Fee:</source>
+        <translation>Ταρίφα</translation>
+    </message>
+    <message>
+        <source>Dust:</source>
+        <translation>Σκόνη</translation>
+    </message>
+    <message>
+        <source>After Fee:</source>
+        <translation>Ταρίφα αλλαγής</translation>
+    </message>
+    <message>
         <source>Change:</source>
         <translation>Ρέστα:</translation>
     </message>
@@ -494,10 +562,26 @@ Address: %4
         <translation>(από)επιλογή όλων</translation>
     </message>
     <message>
+        <source>Tree mode</source>
+        <translation>Εμφάνιση τύπου δέντρο</translation>
+    </message>
+    <message>
+        <source>List mode</source>
+        <translation>Λίστα εντολών</translation>
+    </message>
+    <message>
         <source>Amount</source>
         <translation>Ποσό</translation>
     </message>
     <message>
+        <source>Received with label</source>
+        <translation>Παραλήφθηκε με επιγραφή</translation>
+    </message>
+    <message>
+        <source>Received with address</source>
+        <translation>Παραλείφθηκε με την εξής διεύθυνση</translation>
+    </message>
+    <message>
         <source>Date</source>
         <translation>Ημερομηνία</translation>
     </message>
@@ -530,10 +614,26 @@ Address: %4
         <translation>Αντιγραφη του ID Συναλλαγής</translation>
     </message>
     <message>
+        <source>Lock unspent</source>
+        <translation>Κλείδωμα αξόδευτων</translation>
+    </message>
+    <message>
+        <source>Unlock unspent</source>
+        <translation>Ξεκλείδωμα αξόδευτων</translation>
+    </message>
+    <message>
         <source>Copy quantity</source>
         <translation>Αντιγραφή ποσότητας</translation>
     </message>
     <message>
+        <source>Copy fee</source>
+        <translation>Αντιγραφή ταρίφας</translation>
+    </message>
+    <message>
+        <source>Copy after fee</source>
+        <translation>Αντιγραφή ταρίφας</translation>
+    </message>
+    <message>
         <source>Copy bytes</source>
         <translation>Αντιγραφή των byte</translation>
     </message>
@@ -542,6 +642,10 @@ Address: %4
         <translation>Αντιγραφή προτεραιότητας</translation>
     </message>
     <message>
+        <source>Copy dust</source>
+        <translation>Αντιγραφή 'σκόνης'</translation>
+    </message>
+    <message>
         <source>Copy change</source>
         <translation>Αντιγραφή των ρέστων</translation>
     </message>
@@ -602,6 +706,22 @@ Address: %4
         <translation>Η ετικετα γινετε κοκκινη , αν το μεγεθος της συναλαγης ειναι μεγαλητερο απο 1000 bytes.</translation>
     </message>
     <message>
+        <source>This means a fee of at least %1 per kB is required.</source>
+        <translation>Ελάχιστο χρεώσιμο ποσό τουλάχιστο %1 ανα kB</translation>
+    </message>
+    <message>
+        <source>Transactions with higher priority are more likely to get included into a block.</source>
+        <translation>Συναλλαγές με υψηλότερη προτεραιότητα είναι πιο πιθανό να περιλαμβάνονται σε ένα μπλοκ.</translation>
+    </message>
+    <message>
+        <source>This label turns red, if the priority is smaller than "medium".</source>
+        <translation>Η ετικέτα γίνεται κόκκινη , αν το μέγεθος της συναλαγής είναι μεγαλύτερο απο το ",μεσαίο",</translation>
+    </message>
+    <message>
+        <source>This label turns red, if any recipient receives an amount smaller than %1.</source>
+        <translation>Η ετικέτα γίνεται κόκκινη , αν ο παραλήπτης παραλάβει ένα ποσό μικρότερο απο %1.</translation>
+    </message>
+    <message>
         <source>(no label)</source>
         <translation>(χωρίς ετικέτα)</translation>
     </message>
@@ -630,6 +750,10 @@ Address: %4
         <translation>Η ετικέτα που συνδέεται με αυτήν την καταχώρηση στο βιβλίο διευθύνσεων</translation>
     </message>
     <message>
+        <source>The address associated with this address list entry. This can only be modified for sending addresses.</source>
+        <translation>Η διεύθυνση σχετίζεται με αυτή την καταχώρηση του βιβλίου διευθύνσεων. Μπορεί να τροποποιηθεί μόνο για τις διευθύνσεις αποστολής.</translation>
+    </message>
+    <message>
         <source>&amp;Address</source>
         <translation>&amp;Διεύθυνση</translation>
     </message>
@@ -677,6 +801,14 @@ Address: %4
         <translation>όνομα</translation>
     </message>
     <message>
+        <source>Directory already exists. Add %1 if you intend to create a new directory here.</source>
+        <translation>Κατάλογος ήδη υπάρχει. Προσθήκη %1, αν σκοπεύετε να δημιουργήσετε έναν νέο κατάλογο εδώ.</translation>
+    </message>
+    <message>
+        <source>Path already exists, and is not a directory.</source>
+        <translation>Η διαδρομή υπάρχει ήδη αλλά δεν είναι φάκελος</translation>
+    </message>
+    <message>
         <source>Cannot create data directory here.</source>
         <translation>Δεν μπορεί να δημιουργηθεί φάκελος δεδομένων εδώ.</translation>
     </message>
@@ -724,10 +856,18 @@ Address: %4
         <translation>Έναρξη ελαχιστοποιημένο</translation>
     </message>
     <message>
+        <source>Set SSL root certificates for payment request (default: -system-)</source>
+        <translation>Ορίστε SSL root certificates για αίτηση πληρωμής (default: -system-)</translation>
+    </message>
+    <message>
         <source>Show splash screen on startup (default: 1)</source>
         <translation>Εμφάνισε την οθόνη εκκίνησης κατά την εκκίνηση(προεπιλογή:1)</translation>
     </message>
-    </context>
+    <message>
+        <source>Choose data directory on startup (default: 0)</source>
+        <translation>Επιλογή καταλόγου</translation>
+    </message>
+</context>
 <context>
     <name>Intro</name>
     <message>
@@ -743,6 +883,10 @@ Address: %4
         <translation>Καθώς αυτή είναι η πρώτη φορά που εκκινείται το πρόγραμμα, μπορείτε να διαλέξετε πού θα αποθηκεύει το Bitcoin Core τα δεδομένα του.</translation>
     </message>
     <message>
+        <source>Bitcoin Core will download and store a copy of the Bitcoin block chain. At least %1GB of data will be stored in this directory, and it will grow over time. The wallet will also be stored in this directory.</source>
+        <translation>O πυρήνας Bitcoin θα κατεβάσει και να αποθηκεύσει ένα αντίγραφο της αλυσίδας μπλοκ Bitcoin. Τουλάχιστον %1GB δεδομένων θα αποθηκευτούν σε αυτόν τον κατάλογο, και θα αυξηθεί με την πάροδο του χρόνου. Το πορτοφόλι θα αποθηκευτεί σε αυτόν τον κατάλογο.</translation>
+    </message>
+    <message>
         <source>Use the default data directory</source>
         <translation>Χρήση του προεπιλεγμένου φακέλου δεδομένων</translation>
     </message>
@@ -755,13 +899,37 @@ Address: %4
         <translation>Bitcoin Core</translation>
     </message>
     <message>
+        <source>Error: Specified data directory "%1" cannot be created.</source>
+        <translation>Σφάλμα: Ο καθορισμένος φάκελος δεδομένων "%1" δεν μπορεί να δημιουργηθεί.</translation>
+    </message>
+    <message>
         <source>Error</source>
         <translation>Σφάλμα</translation>
     </message>
     </context>
 <context>
     <name>OpenURIDialog</name>
-    </context>
+    <message>
+        <source>Open URI</source>
+        <translation>'Ανοιγμα &amp;URI</translation>
+    </message>
+    <message>
+        <source>Open payment request from URI or file</source>
+        <translation>Ανοιχτό αίτημα πληρωμής από URI ή απο αρχείο</translation>
+    </message>
+    <message>
+        <source>URI:</source>
+        <translation>URI:</translation>
+    </message>
+    <message>
+        <source>Select payment request file</source>
+        <translation>Επιλέξτε πληρωμή αρχείου αίτησης</translation>
+    </message>
+    <message>
+        <source>Select payment request file to open</source>
+        <translation>Επιλέξτε αρχείο πληρωμής για άνοιγμα.</translation>
+    </message>
+</context>
 <context>
     <name>OptionsDialog</name>
     <message>
@@ -781,10 +949,34 @@ Address: %4
         <translation>&amp;Έναρξη του Βιtcoin κατά την εκκίνηση του συστήματος</translation>
     </message>
     <message>
+        <source>Size of &amp;database cache</source>
+        <translation>Μέγεθος κρυφής μνήμης βάσης δεδομένων.</translation>
+    </message>
+    <message>
         <source>MB</source>
         <translation>MB</translation>
     </message>
     <message>
+        <source>Number of script &amp;verification threads</source>
+        <translation>Αριθμός script και γραμμές επαλήθευσης </translation>
+    </message>
+    <message>
+        <source>Accept connections from outside</source>
+        <translation>Αποδοχή συνδέσεων απο έξω</translation>
+    </message>
+    <message>
+        <source>Allow incoming connections</source>
+        <translation>Αποδοχή εισερχόμενων συναλλαγών</translation>
+    </message>
+    <message>
+        <source>IP address of the proxy (e.g. IPv4: 127.0.0.1 / IPv6: ::1)</source>
+        <translation>Διεύθυνση IP του διαμεσολαβητή (π.χ. 127.0.0.1  / IPv6: ::1)</translation>
+    </message>
+    <message>
+        <source>Third party transaction URLs</source>
+        <translation>Διευθύνσεις τρίτων συναλλαγών.</translation>
+    </message>
+    <message>
         <source>Reset all client options to default.</source>
         <translation>Επαναφορα όλων των επιλογων του πελάτη σε default.</translation>
     </message>
@@ -797,10 +989,18 @@ Address: %4
         <translation>&amp;Δίκτυο</translation>
     </message>
     <message>
+        <source>W&amp;allet</source>
+        <translation>Π&amp;ορτοφόλι</translation>
+    </message>
+    <message>
         <source>Expert</source>
         <translation>Έμπειρος</translation>
     </message>
     <message>
+        <source>Enable coin &amp;control features</source>
+        <translation>Επιλογή κατα πόσο να αναδείχνονται οι δυνατότητες ελέγχου κερμάτων.</translation>
+    </message>
+    <message>
         <source>Automatically open the Bitcoin client port on the router. This only works when your router supports UPnP and it is enabled.</source>
         <translation>Αυτόματο άνοιγμα των θυρών Bitcoin στον δρομολογητή. Λειτουργεί μόνο αν ο δρομολογητής σας υποστηρίζει τη λειτουργία UPnP.</translation>
     </message>
@@ -809,6 +1009,14 @@ Address: %4
         <translation>Απόδοση θυρών με χρήστη &amp;UPnP</translation>
     </message>
     <message>
+        <source>Connect to the Bitcoin network through a SOCKS5 proxy.</source>
+        <translation>Σύνδεση στο Bitcoin δίκτυο μέσω διαμεσολαβητή SOCKS5 (π.χ. για σύνδεση μέσω Tor)</translation>
+    </message>
+    <message>
+        <source>&amp;Connect through SOCKS5 proxy (default proxy):</source>
+        <translation>&amp;Σύνδεση μέσω διαμεσολαβητή SOCKS5 (προεπιλεγμένος)</translation>
+    </message>
+    <message>
         <source>Proxy &amp;IP:</source>
         <translation>&amp;IP διαμεσολαβητή:</translation>
     </message>
@@ -861,6 +1069,10 @@ Address: %4
         <translation>Διαλέξτε την προεπιλεγμένη υποδιαίρεση που θα εμφανίζεται όταν στέλνετε νομίσματα.</translation>
     </message>
     <message>
+        <source>Whether to show coin control features or not.</source>
+        <translation>Επιλογή κατα πόσο να αναδείχνονται οι δυνατότητες ελέγχου κερμάτων.</translation>
+    </message>
+    <message>
         <source>&amp;OK</source>
         <translation>&amp;ΟΚ</translation>
     </message>
@@ -885,6 +1097,14 @@ Address: %4
         <translation>Χρειάζεται επανεκκίνηση του προγράμματος για να ενεργοποιηθούν οι αλλαγές.</translation>
     </message>
     <message>
+        <source>Client will be shutdown, do you want to proceed?</source>
+        <translation>Η εφαρμογή θα τερματιστεί. Θέλετε να προχωρήσετε;</translation>
+    </message>
+    <message>
+        <source>This change would require a client restart.</source>
+        <translation>Η αλλαγή αυτή θα χρειαστεί επανεκκίνηση του προγράμματος</translation>
+    </message>
+    <message>
         <source>The supplied proxy address is invalid.</source>
         <translation>Δεν είναι έγκυρη η διεύθυνση διαμεσολαβητή</translation>
     </message>
@@ -900,6 +1120,10 @@ Address: %4
         <translation>Οι πληροφορίες που εμφανίζονται μπορεί να είναι ξεπερασμένες. Το πορτοφόλι σας συγχρονίζεται αυτόματα με το δίκτυο Bitcoin μετά από μια σύνδεση, αλλά αυτή η διαδικασία δεν έχει ακόμη ολοκληρωθεί. </translation>
     </message>
     <message>
+        <source>Watch-only:</source>
+        <translation>Επίβλεψη μόνο:</translation>
+    </message>
+    <message>
         <source>Available:</source>
         <translation>Διαθέσιμο:</translation>
     </message>
@@ -908,6 +1132,10 @@ Address: %4
         <translation>Το τρέχον διαθέσιμο υπόλοιπο</translation>
     </message>
     <message>
+        <source>Pending:</source>
+        <translation>Εκκρεμούν:</translation>
+    </message>
+    <message>
         <source>Total of transactions that have yet to be confirmed, and do not yet count toward the spendable balance</source>
         <translation>Το άθροισμα των συναλλαγών που δεν έχουν ακόμα επιβεβαιωθεί και δεν προσμετρώνται στο τρέχον διαθέσιμο υπόλοιπό σας</translation>
     </message>
@@ -920,6 +1148,10 @@ Address: %4
         <translation>Εξορυγμενο υπόλοιπο που δεν έχει ακόμα ωριμάσει </translation>
     </message>
     <message>
+        <source>Balances</source>
+        <translation>Υπόλοιπο:</translation>
+    </message>
+    <message>
         <source>Total:</source>
         <translation>Σύνολο:</translation>
     </message>
@@ -928,6 +1160,14 @@ Address: %4
         <translation>Το τρέχον συνολικό υπόλοιπο</translation>
     </message>
     <message>
+        <source>Spendable:</source>
+        <translation>Ξοδεμένα:</translation>
+    </message>
+    <message>
+        <source>Recent transactions</source>
+        <translation>Πρόσφατες συναλλαγές</translation>
+    </message>
+    <message>
         <source>out of sync</source>
         <translation>εκτός συγχρονισμού</translation>
     </message>
@@ -943,6 +1183,18 @@ Address: %4
         <translation>Μη έγκυρη διεύθυνση πληρωμής %1</translation>
     </message>
     <message>
+        <source>Payment request rejected</source>
+        <translation>Η αίτηση πληρωμής έχει αρνηθεί.</translation>
+    </message>
+    <message>
+        <source>Payment request has expired.</source>
+        <translation>Η αίτηση πληρωμής έχει λήξει.</translation>
+    </message>
+    <message>
+        <source>Payment request is not initialized.</source>
+        <translation>Η αίτηση πληρωμής δεν έχει αρχίζει ακόμα.</translation>
+    </message>
+    <message>
         <source>Payment request error</source>
         <translation>Σφάλμα αιτήματος πληρωμής</translation>
     </message>
@@ -951,6 +1203,18 @@ Address: %4
         <translation>Δεν είναι δυνατή η εκκίνηση του Bitcoin: click-to-pay handler</translation>
     </message>
     <message>
+        <source>Payment request fetch URL is invalid: %1</source>
+        <translation>Η διεύθυνση πληρωμής (URL) δεν είναι έγκυρη: %1</translation>
+    </message>
+    <message>
+        <source>Payment request file handling</source>
+        <translation>Επιλέξτε αρχείο πληρωμής για άνοιγμα.</translation>
+    </message>
+    <message>
+        <source>Refund from %1</source>
+        <translation>Επιστροφή ποσού από %1</translation>
+    </message>
+    <message>
         <source>Payment acknowledged</source>
         <translation>Πληρωμή αναγνωρίστηκε</translation>
     </message>
@@ -961,7 +1225,15 @@ Address: %4
 </context>
 <context>
     <name>PeerTableModel</name>
-    </context>
+    <message>
+        <source>Address/Hostname</source>
+        <translation>Διεύθυθνση/Όνομα υπολογιστή</translation>
+    </message>
+    <message>
+        <source>Ping Time</source>
+        <translation>Χρόνος καθυστέρησης</translation>
+    </message>
+</context>
 <context>
     <name>QObject</name>
     <message>
@@ -969,6 +1241,14 @@ Address: %4
         <translation>Ποσό</translation>
     </message>
     <message>
+        <source>Enter a Bitcoin address (e.g. %1)</source>
+        <translation>Εισάγετε μια διεύθυνση Bitcoin (π.χ. %1)</translation>
+    </message>
+    <message>
+        <source>%1 d</source>
+        <translation>%1 d</translation>
+    </message>
+    <message>
         <source>%1 h</source>
         <translation>%1 ώ</translation>
     </message>
@@ -977,10 +1257,30 @@ Address: %4
         <translation>%1 λ</translation>
     </message>
     <message>
+        <source>%1 s</source>
+        <translation>%1 s</translation>
+    </message>
+    <message>
+        <source>NETWORK</source>
+        <translation>Δίκτυο</translation>
+    </message>
+    <message>
+        <source>UNKNOWN</source>
+        <translation>Άγνωστο(α)</translation>
+    </message>
+    <message>
+        <source>None</source>
+        <translation>Κανένα</translation>
+    </message>
+    <message>
         <source>N/A</source>
         <translation>Μη διαθέσιμο</translation>
     </message>
-    </context>
+    <message>
+        <source>%1 ms</source>
+        <translation>%1 ms</translation>
+    </message>
+</context>
 <context>
     <name>QRImageWidget</name>
     <message>
@@ -1055,6 +1355,22 @@ Address: %4
         <translation>Τρέχον αριθμός μπλοκ</translation>
     </message>
     <message>
+        <source>Received</source>
+        <translation>Παραλήφθησαν</translation>
+    </message>
+    <message>
+        <source>Version</source>
+        <translation>Έκδοση</translation>
+    </message>
+    <message>
+        <source>Services</source>
+        <translation>Υπηρεσίες</translation>
+    </message>
+    <message>
+        <source>Ping Time</source>
+        <translation>Χρόνος καθυστέρησης</translation>
+    </message>
+    <message>
         <source>Last block time</source>
         <translation>Χρόνος τελευταίου μπλοκ</translation>
     </message>
@@ -1130,6 +1446,26 @@ Address: %4
         <source>%1 GB</source>
         <translation>%1 GB</translation>
     </message>
+    <message>
+        <source>via %1</source>
+        <translation>μέσω %1</translation>
+    </message>
+    <message>
+        <source>never</source>
+        <translation>ποτέ</translation>
+    </message>
+    <message>
+        <source>Inbound</source>
+        <translation>Εισερχόμενα</translation>
+    </message>
+    <message>
+        <source>Outbound</source>
+        <translation>Εξερχόμενα</translation>
+    </message>
+    <message>
+        <source>Unknown</source>
+        <translation>Άγνωστο(α)</translation>
+    </message>
     </context>
 <context>
     <name>ReceiveCoinsDialog</name>
@@ -1185,6 +1521,10 @@ Address: %4
         <translation>Κώδικας QR</translation>
     </message>
     <message>
+        <source>Copy &amp;URI</source>
+        <translation>Αντιγραφη της επιλεγμενης διεύθυνσης στο πρόχειρο του συστηματος</translation>
+    </message>
+    <message>
         <source>&amp;Save Image...</source>
         <translation>&amp;Αποθήκευση εικόνας...</translation>
     </message>
@@ -1193,6 +1533,10 @@ Address: %4
         <translation>Πληροφορίες πληρωμής</translation>
     </message>
     <message>
+        <source>URI</source>
+        <translation>URI:</translation>
+    </message>
+    <message>
         <source>Address</source>
         <translation>Διεύθυνση</translation>
     </message>
@@ -1255,6 +1599,10 @@ Address: %4
         <translation>Αποστολή νομισμάτων</translation>
     </message>
     <message>
+        <source>Coin Control Features</source>
+        <translation>Χαρακτηρηστικά επιλογής κερμάτων</translation>
+    </message>
+    <message>
         <source>automatically selected</source>
         <translation>επιλεγμένο αυτόματα</translation>
     </message>
@@ -1279,10 +1627,34 @@ Address: %4
         <translation>Προτεραιότητα:</translation>
     </message>
     <message>
+        <source>Fee:</source>
+        <translation>Ταρίφα</translation>
+    </message>
+    <message>
+        <source>After Fee:</source>
+        <translation>Ταρίφα αλλαγής</translation>
+    </message>
+    <message>
         <source>Change:</source>
         <translation>Ρέστα:</translation>
     </message>
     <message>
+        <source>Transaction Fee:</source>
+        <translation>Τέλος συναλλαγής:</translation>
+    </message>
+    <message>
+        <source>Choose...</source>
+        <translation>Επιλογή...</translation>
+    </message>
+    <message>
+        <source>Minimize</source>
+        <translation>Ελαχιστοποίηση</translation>
+    </message>
+    <message>
+        <source>fast</source>
+        <translation>Γρήγορο</translation>
+    </message>
+    <message>
         <source>Send to multiple recipients at once</source>
         <translation>Αποστολή σε πολλούς αποδέκτες ταυτόχρονα</translation>
     </message>
@@ -1295,6 +1667,10 @@ Address: %4
         <translation>Καθαρισμός όλων των πεδίων της φόρμας.</translation>
     </message>
     <message>
+        <source>Dust:</source>
+        <translation>Σκόνη</translation>
+    </message>
+    <message>
         <source>Clear &amp;All</source>
         <translation>Καθαρισμός &amp;Όλων</translation>
     </message>
@@ -1327,6 +1703,14 @@ Address: %4
         <translation>Αντιγραφή ποσού</translation>
     </message>
     <message>
+        <source>Copy fee</source>
+        <translation>Αντιγραφή ταρίφας</translation>
+    </message>
+    <message>
+        <source>Copy after fee</source>
+        <translation>Αντιγραφή μετα-ταρίφας</translation>
+    </message>
+    <message>
         <source>Copy bytes</source>
         <translation>Αντιγραφή των byte</translation>
     </message>
@@ -1379,6 +1763,10 @@ Address: %4
         <translation>(χωρίς ετικέτα)</translation>
     </message>
     <message>
+        <source>Copy dust</source>
+        <translation>Αντιγραφή 'σκόνης'</translation>
+    </message>
+    <message>
         <source>Are you sure you want to send?</source>
         <translation>Είστε βέβαιοι για την αποστολή;</translation>
     </message>
@@ -1464,6 +1852,10 @@ Address: %4
         <translation>Μπορείτε να υπογράφετε μηνύματα με τις διευθύνσεις σας, ώστε ν' αποδεικνύετε πως αυτές σας ανήκουν. Αποφεύγετε να υπογράφετε κάτι αόριστο καθώς ενδέχεται να εξαπατηθείτε. Υπογράφετε μόνο πλήρης δηλώσεις με τις οποίες συμφωνείτε.</translation>
     </message>
     <message>
+        <source>The Bitcoin address to sign the message with</source>
+        <translation>Διεύθυνση Bitcoin που θα σταλεί το μήνυμα</translation>
+    </message>
+    <message>
         <source>Choose previously used address</source>
         <translation>Επιλογή διεύθυνσης που έχει ήδη χρησιμοποιηθεί</translation>
     </message>
@@ -1516,6 +1908,10 @@ Address: %4
         <translation>Πληκτρολογήστε την υπογραφή διεύθυνσης, μήνυμα (βεβαιωθείτε ότι έχετε αντιγράψει τις αλλαγές γραμμής, κενά, tabs, κ.λπ. ακριβώς) και την υπογραφή παρακάτω, για να ελέγξει το μήνυμα. Να είστε προσεκτικοί για να μην διαβάσετε περισσότερα στην υπογραφή ό, τι είναι στην υπογραφή ίδιο το μήνυμα , για να μην εξαπατηθούν από έναν άνθρωπο -in - the-middle επίθεση.</translation>
     </message>
     <message>
+        <source>The Bitcoin address the message was signed with</source>
+        <translation>Διεύθυνση Bitcoin η οποία το μήνυμα έχει υπογραφεί</translation>
+    </message>
+    <message>
         <source>Verify the message to ensure it was signed with the specified Bitcoin address</source>
         <translation>Υπογράψτε ένα μήνυμα για ν' αποδείξετε πως υπογραφθηκε απο μια συγκεκριμένη διεύθυνση Bitcoin</translation>
     </message>
@@ -1609,6 +2005,10 @@ Address: %4
         <translation>Ανοιχτό μέχρι %1</translation>
     </message>
     <message>
+        <source>conflicted</source>
+        <translation>σύγκρουση</translation>
+    </message>
+    <message>
         <source>%1/offline</source>
         <translation>%1/χωρίς σύνδεση;</translation>
     </message>
@@ -1653,6 +2053,10 @@ Address: %4
         <translation> δική σας διεύθυνση </translation>
     </message>
     <message>
+        <source>watch-only</source>
+        <translation>Επίβλεψη μόνο:</translation>
+    </message>
+    <message>
         <source>label</source>
         <translation>eπιγραφή</translation>
     </message>
@@ -1673,6 +2077,14 @@ Address: %4
         <translation>Debit</translation>
     </message>
     <message>
+        <source>Total debit</source>
+        <translation>Σύνολο χρέωσης</translation>
+    </message>
+    <message>
+        <source>Total credit</source>
+        <translation>Συνολική πίστωση</translation>
+    </message>
+    <message>
         <source>Transaction fee</source>
         <translation>Τέλος συναλλαγής </translation>
     </message>
@@ -1697,6 +2109,10 @@ Address: %4
         <translation>Έμπορος</translation>
     </message>
     <message>
+        <source>Generated coins must mature %1 blocks before they can be spent. When you generated this block, it was broadcast to the network to be added to the block chain. If it fails to get into the chain, its state will change to "not accepted" and it won't be spendable. This may occasionally happen if another node generates a block within a few seconds of yours.</source>
+        <translation>Πρέπει να περιμένετε %1 μπλοκ πριν μπορέσετε να χρησιμοποιήσετε τα νομίσματα που έχετε δημιουργήσει. Το μπλοκ που δημιουργήσατε μεταδόθηκε στο δίκτυο για να συμπεριληφθεί στην αλυσίδα των μπλοκ. Αν δεν μπει σε αυτή θα μετατραπεί σε "μη αποδεκτό" και δε θα μπορεί να καταναλωθεί. Αυτό συμβαίνει σπάνια όταν κάποιος άλλος κόμβος δημιουργήσει ένα μπλοκ λίγα δευτερόλεπτα πριν από εσάς.</translation>
+    </message>
+    <message>
         <source>Debug information</source>
         <translation>Πληροφορίες αποσφαλμάτωσης</translation>
     </message>
@@ -1787,6 +2203,10 @@ Address: %4
         <translation>Ανεπιβεβαίωτες</translation>
     </message>
     <message>
+        <source>Conflicted</source>
+        <translation>Σύγκρουση</translation>
+    </message>
+    <message>
         <source>Received with</source>
         <translation>Παραλαβή με</translation>
     </message>
@@ -1807,6 +2227,10 @@ Address: %4
         <translation>Εξόρυξη</translation>
     </message>
     <message>
+        <source>watch-only</source>
+        <translation>Επίβλεψη μόνο:</translation>
+    </message>
+    <message>
         <source>(n/a)</source>
         <translation>(δ/α)</translation>
     </message>
@@ -1918,6 +2342,10 @@ Address: %4
         <translation>Εξαγωγή Ιστορικού Συναλλαγών</translation>
     </message>
     <message>
+        <source>Watch-only</source>
+        <translation>Επίβλεψη μόνο:</translation>
+    </message>
+    <message>
         <source>Exporting Failed</source>
         <translation>Η Εξαγωγή Απέτυχε</translation>
     </message>
@@ -2154,6 +2582,10 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Σφάλμα φορτωσης της βασης δεδομενων των μπλοκ</translation>
     </message>
     <message>
+        <source>Error: A fatal internal error occured, see debug.log for details</source>
+        <translation>Σφάλμα: Παρουσιάστηκε ανεπανόρθωτο εσωτερικό σφάλμα, δείτε debug.log για λεπτομέρειες</translation>
+    </message>
+    <message>
         <source>Error: Disk space is low!</source>
         <translation>Προειδοποίηση: Χαμηλός χώρος στο δίσκο  </translation>
     </message>
@@ -2166,6 +2598,10 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>ταλαιπωρηθειτε για να ακούσετε σε οποιαδήποτε θύρα. Χρήση - ακούστε = 0 , αν θέλετε αυτό.</translation>
     </message>
     <message>
+        <source>Importing...</source>
+        <translation>ΕΙσαγωγή...</translation>
+    </message>
+    <message>
         <source>Invalid -onion address: '%s'</source>
         <translation>Άκυρη διεύθυνση -onion : '%s'</translation>
     </message>
@@ -2178,6 +2614,10 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Εισαγωγή μπλοκ από εξωτερικό αρχείο blk000?.dat</translation>
     </message>
     <message>
+        <source>Specify wallet file (within data directory)</source>
+        <translation>Επιλέξτε αρχείο πορτοφολιού (μέσα απο κατάλογο δεδομένων)</translation>
+    </message>
+    <message>
         <source>Verifying blocks...</source>
         <translation>Επαλήθευση των μπλοκ... </translation>
     </message>
@@ -2194,6 +2634,26 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Εισαγωγή μπλοκ από εξωτερικό αρχείο blk000?.dat</translation>
     </message>
     <message>
+        <source>Cannot obtain a lock on data directory %s. Bitcoin Core is probably already running.</source>
+        <translation>Αδυναμία κλειδώματος του φακέλου δεδομένων %s. Πιθανώς το Bitcoin να είναι ήδη ενεργό.</translation>
+    </message>
+    <message>
+        <source>Connect through SOCKS5 proxy</source>
+        <translation>Σύνδεση μέσω διαμεσολαβητή SOCKS5</translation>
+    </message>
+    <message>
+        <source>Could not parse -rpcbind value %s as network address</source>
+        <translation>Δεν μπόρεσε να αναλυθεί η παράμετρος -rpcbind value %s ως διεύθυνση δικτύου</translation>
+    </message>
+    <message>
+        <source>Error loading wallet.dat: Wallet requires newer version of Bitcoin Core</source>
+        <translation>Σφάλμα φόρτωσης wallet.dat: Το Πορτοφόλι απαιτεί μια νεότερη έκδοση του Bitcoin</translation>
+    </message>
+    <message>
+        <source>Error: Unsupported argument -tor found, use -onion.</source>
+        <translation>Σφάλμα: Μη συμβατή παράμετρος -tor. Χρησιμοποιήσε την παράμετρο -onion</translation>
+    </message>
+    <message>
         <source>Information</source>
         <translation>Πληροφορία</translation>
     </message>
@@ -2206,6 +2666,10 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Μη έγκυρο ποσό για την παράμετρο -paytxfee=&lt;amount&gt;: '%s'</translation>
     </message>
     <message>
+        <source>RPC SSL options: (see the Bitcoin Wiki for SSL setup instructions)</source>
+        <translation>Ρυθμίσεις SSL: (ανατρέξτε στο Bitcoin Wiki για οδηγίες ρυθμίσεων SSL)</translation>
+    </message>
+    <message>
         <source>Send trace/debug info to console instead of debug.log file</source>
         <translation>Αποστολή πληροφοριών εντοπισμού σφαλμάτων στην κονσόλα αντί του αρχείου debug.log</translation>
     </message>
@@ -2218,6 +2682,10 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Η υπογραφή συναλλαγής απέτυχε </translation>
     </message>
     <message>
+        <source>This is experimental software.</source>
+        <translation>Η εφαρμογή είναι σε πειραματικό στάδιο.</translation>
+    </message>
+    <message>
         <source>Transaction amount too small</source>
         <translation>Το ποσό της συναλλαγής είναι πολύ μικρο </translation>
     </message>
@@ -2246,6 +2714,10 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Προειδοποίηση: Αυτή η έκδοση είναι ξεπερασμένη, απαιτείται αναβάθμιση </translation>
     </message>
     <message>
+        <source>Zapping all transactions from wallet...</source>
+        <translation>Μεταφορά όλων των συναλλαγών απο το πορτοφόλι</translation>
+    </message>
+    <message>
         <source>on startup</source>
         <translation>κατά την εκκίνηση</translation>
     </message>
@@ -2290,14 +2762,62 @@ for example: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Σφάλμα φόρτωσης wallet.dat: Κατεστραμμένο Πορτοφόλι</translation>
     </message>
     <message>
+        <source>How thorough the block verification of -checkblocks is (0-4, default: %u)</source>
+        <translation>Πόσο εξονυχιστική να είναι η επιβεβαίωση του μπλοκ (0-4, προεπιλογή: %u)</translation>
+    </message>
+    <message>
+        <source>Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)</source>
+        <translation>Διατηρήση ένος πλήρες ευρετήριου συναλλαγών (προεπιλογή: %u) </translation>
+    </message>
+    <message>
+        <source>Number of seconds to keep misbehaving peers from reconnecting (default: %u)</source>
+        <translation>Δευτερόλεπτα πριν επιτραπεί ξανά η σύνδεση των προβληματικών peers (προεπιλογή: %u)</translation>
+    </message>
+    <message>
         <source>Error loading wallet.dat</source>
         <translation>Σφάλμα φόρτωσης αρχείου wallet.dat</translation>
     </message>
     <message>
+        <source>Force safe mode (default: %u)</source>
+        <translation>Επιβολή ασφαλής λειτουργίας (προεπιλογή: %u)</translation>
+    </message>
+    <message>
+        <source>Generate coins (default: %u)</source>
+        <translation>Δημιουργία νομισμάτων (προκαθορισμος: %u)</translation>
+    </message>
+    <message>
+        <source>How many blocks to check at startup (default: %u, 0 = all)</source>
+        <translation>Πόσα μπλοκ να ελέγχθουν κατά την εκκίνηση (προεπιλογή: %u, 0 = όλα)</translation>
+    </message>
+    <message>
+        <source>Include IP addresses in debug output (default: %u)</source>
+        <translation>Να συμπεριληφθεί η διεύθυνση IP στην αναφορά? (προεπιλογή: %u)</translation>
+    </message>
+    <message>
         <source>Invalid -proxy address: '%s'</source>
         <translation>Δεν είναι έγκυρη η διεύθυνση διαμεσολαβητή: '%s'</translation>
     </message>
     <message>
+        <source>Print block tree on startup (default: %u)</source>
+        <translation>Εκτύπωση μπλοκ δέντρου κατά την εκκίνηση (προεπιλογή: %u)</translation>
+    </message>
+    <message>
+        <source>Server certificate file (default: %s)</source>
+        <translation>Αρχείο πιστοποιητικού του διακομιστή  (προεπιλογή: %s)</translation>
+    </message>
+    <message>
+        <source>Specify connection timeout in milliseconds (minimum: 1, default: %d)</source>
+        <translation>Ορισμός λήξης χρονικού ορίου σε χιλιοστά του δευτερολέπτου(προεπιλογή: %d)</translation>
+    </message>
+    <message>
+        <source>Specify pid file (default: %s)</source>
+        <translation>Ορίστε αρχείο pid (προεπιλογή: %s)</translation>
+    </message>
+    <message>
+        <source>Threshold for disconnecting misbehaving peers (default: %u)</source>
+        <translation>Όριο αποσύνδεσης προβληματικών peers (προεπιλογή: %u)</translation>
+    </message>
+    <message>
         <source>Unknown network specified in -onlynet: '%s'</source>
         <translation>Άγνωστo δίκτυο ορίζεται σε onlynet: '%s'</translation>
     </message>
diff --git a/src/qt/locale/bitcoin_es.ts b/src/qt/locale/bitcoin_es.ts
index 71f7e9f4c9..b701366706 100644
--- a/src/qt/locale/bitcoin_es.ts
+++ b/src/qt/locale/bitcoin_es.ts
@@ -525,6 +525,10 @@ Dirección: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>Selección de la moneda</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>Cantidad:</translation>
     </message>
@@ -573,6 +577,14 @@ Dirección: %4
         <translation>Cantidad</translation>
     </message>
     <message>
+        <source>Received with label</source>
+        <translation>Recibido con etiqueta</translation>
+    </message>
+    <message>
+        <source>Received with address</source>
+        <translation>Recibido con dirección</translation>
+    </message>
+    <message>
         <source>Date</source>
         <translation>Fecha</translation>
     </message>
@@ -1035,6 +1047,14 @@ Dirección: %4
         <translation>Mapear el puerto mediante &amp;UPnP</translation>
     </message>
     <message>
+        <source>Connect to the Bitcoin network through a SOCKS5 proxy.</source>
+        <translation>Conectarse a la red Bitcoin a través de un proxy SOCKS5.</translation>
+    </message>
+    <message>
+        <source>&amp;Connect through SOCKS5 proxy (default proxy):</source>
+        <translation>&amp;Conectarse a través de proxy SOCKS5 (proxy predeterminado):</translation>
+    </message>
+    <message>
         <source>Proxy &amp;IP:</source>
         <translation>Dirección &amp;IP del proxy:</translation>
     </message>
@@ -1825,6 +1845,50 @@ Dirección: %4
         <translation>Dirección propia</translation>
     </message>
     <message>
+        <source>Transaction Fee:</source>
+        <translation>Comisión de Transacción:</translation>
+    </message>
+    <message>
+        <source>Minimize</source>
+        <translation>Minimizar</translation>
+    </message>
+    <message>
+        <source>per kilobyte</source>
+        <translation>por kilobyte</translation>
+    </message>
+    <message>
+        <source>total at least</source>
+        <translation>total por lo menos</translation>
+    </message>
+    <message>
+        <source>Recommended:</source>
+        <translation>Recomendado:</translation>
+    </message>
+    <message>
+        <source>Custom:</source>
+        <translation>Personalizado:</translation>
+    </message>
+    <message>
+        <source>(Smart fee not initialized yet. This usually takes a few blocks...)</source>
+        <translation>(Tarifa inteligente no inicializado aún. Esto generalmente lleva a pocos bloques...)</translation>
+    </message>
+    <message>
+        <source>Confirmation time:</source>
+        <translation>Tiempo de confirmación:</translation>
+    </message>
+    <message>
+        <source>normal</source>
+        <translation>normal</translation>
+    </message>
+    <message>
+        <source>fast</source>
+        <translation>rápido</translation>
+    </message>
+    <message>
+        <source>(confirmation may take longer)</source>
+        <translation>(confirmación puede tardar más tiempo)</translation>
+    </message>
+    <message>
         <source>Send to multiple recipients at once</source>
         <translation>Enviar a múltiples destinatarios de una vez</translation>
     </message>
@@ -1929,6 +1993,14 @@ Dirección: %4
         <translation>¡La transacción fue rechazada! Esto puede haber ocurrido si alguno de los bitcoins de su monedero ya estaba gastado o si ha usado una copia de wallet.dat y los bitcoins estaban gastados en la copia pero no se habían marcado como gastados aqui.</translation>
     </message>
     <message>
+        <source>Pay only the minimum fee of %1</source>
+        <translation>Paga sólo la cuota mínima de %1</translation>
+    </message>
+    <message>
+        <source>Estimated to begin confirmation within %1 block(s).</source>
+        <translation>Estimado para comenzar confirmación dentro de %1 bloque(s)</translation>
+    </message>
+    <message>
         <source>Warning: Invalid Bitcoin address</source>
         <translation>Alerta: Dirección de Bitcoin inválida</translation>
     </message>
@@ -2739,6 +2811,10 @@ Por ejemplo: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com
         <translation>Borrar todas las transacciones del monedero y sólo recuperar aquellas partes de la cadena de bloques por medio de -rescan on startup.</translation>
     </message>
     <message>
+        <source>Distributed under the MIT software license, see the accompanying file COPYING or &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</source>
+        <translation>Distribuido bajo la licencia de software MIT, vea la copia del archivo adjunto o &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</translation>
+    </message>
+    <message>
         <source>Enter regression test mode, which uses a special chain in which blocks can be solved instantly.</source>
         <translation>Ingresar en el modo de prueba de regresión, que utiliza una cadena especial en la que los bloques se pueden resolver instantáneamente.</translation>
     </message>
diff --git a/src/qt/locale/bitcoin_it.ts b/src/qt/locale/bitcoin_it.ts
index 5dbe98b0f8..06cf0e0162 100644
--- a/src/qt/locale/bitcoin_it.ts
+++ b/src/qt/locale/bitcoin_it.ts
@@ -478,6 +478,10 @@
         <source>Up to date</source>
         <translation>Aggiornato</translation>
     </message>
+    <message numerus="yes">
+        <source>Processed %n blocks of transaction history.</source>
+        <translation><numerusform>Processati %n blocchi dello storico transazioni.</numerusform><numerusform>Processati %n blocchi dello storico delle transazioni.</numerusform></translation>
+    </message>
     <message>
         <source>Catching up...</source>
         <translation>In aggiornamento...</translation>
@@ -522,6 +526,11 @@ Indirizzo: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>Seleziona Moneta
+</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>Quantità:</translation>
     </message>
@@ -570,6 +579,14 @@ Indirizzo: %4
         <translation>Importo</translation>
     </message>
     <message>
+        <source>Received with label</source>
+        <translation>Ricevuto con etichetta</translation>
+    </message>
+    <message>
+        <source>Received with address</source>
+        <translation>Ricevuto con l'indirizzo</translation>
+    </message>
+    <message>
         <source>Date</source>
         <translation>Data</translation>
     </message>
@@ -1025,6 +1042,14 @@ Più URL vengono separati da una barra verticale |.</translation>
         <translation>Mappa le porte tramite &amp;UPnP</translation>
     </message>
     <message>
+        <source>Connect to the Bitcoin network through a SOCKS5 proxy.</source>
+        <translation>Connessione alla rete Bitcoin attraverso un proxy SOCKS5.</translation>
+    </message>
+    <message>
+        <source>&amp;Connect through SOCKS5 proxy (default proxy):</source>
+        <translation>&amp;Connessione attraverso proxy SOCKS5 (proxy predefinito):</translation>
+    </message>
+    <message>
         <source>Proxy &amp;IP:</source>
         <translation>&amp;IP del proxy:</translation>
     </message>
@@ -1188,6 +1213,10 @@ Più URL vengono separati da una barra verticale |.</translation>
         <translation>l'equilibrio estratto solo nello sguardo degli indirizzi non è ancora maturo </translation>
     </message>
     <message>
+        <source>Current total balance in watch-only addresses</source>
+        <translation>Saldo corrente totale negli indirizzi watch-only</translation>
+    </message>
+    <message>
         <source>out of sync</source>
         <translation>non sincronizzato</translation>
     </message>
@@ -1811,6 +1840,50 @@ Più URL vengono separati da una barra verticale |.</translation>
         <translation>Personalizza indirizzo di resto</translation>
     </message>
     <message>
+        <source>Transaction Fee:</source>
+        <translation>Tasse di Transazione</translation>
+    </message>
+    <message>
+        <source>Choose...</source>
+        <translation>Scegli...</translation>
+    </message>
+    <message>
+        <source>Minimize</source>
+        <translation>Minimizza</translation>
+    </message>
+    <message>
+        <source>per kilobyte</source>
+        <translation>per kilobyte</translation>
+    </message>
+    <message>
+        <source>Paying only the minimum fee is just fine as long as there is less transaction volume than space in the blocks. But be aware that this can end up in a never confirming transaction once there is more demand for bitcoin transactions than the network can process.</source>
+        <translation>Pagando solo la tariffa minima è bene finché c'è meno volume di transazioni di spazio nei blocchi. Ma essere consapevoli che questo può finire in una transazione non confermando ancora una volta non vi è più richiesta per le transazioni Bitcoin di rete in grado di elaborare.</translation>
+    </message>
+    <message>
+        <source>Recommended:</source>
+        <translation>Raccomandati:</translation>
+    </message>
+    <message>
+        <source>Custom:</source>
+        <translation>Personalizza:</translation>
+    </message>
+    <message>
+        <source>Confirmation time:</source>
+        <translation>Tempo di conferma:</translation>
+    </message>
+    <message>
+        <source>normal</source>
+        <translation>normale</translation>
+    </message>
+    <message>
+        <source>fast</source>
+        <translation>veloce</translation>
+    </message>
+    <message>
+        <source>Send as zero-fee transaction if possible</source>
+        <translation>Invia una transazione a zero commissioni se possibile</translation>
+    </message>
+    <message>
         <source>Send to multiple recipients at once</source>
         <translation>Invia a diversi beneficiari in una volta sola</translation>
     </message>
@@ -2941,6 +3014,22 @@ ad esempio: alertnotify=echo %%s | mail -s "Allarme Bitcoin" admin@foo.com
         <translation>Imposta la dimensione massima in byte delle transazioni ad alta-priorità/basse-commissioni (predefinita: %d)</translation>
     </message>
     <message>
+        <source>Cannot resolve -whitebind address: '%s'</source>
+        <translation>Impossibile risolvere -whitebind address: '%s'</translation>
+    </message>
+    <message>
+        <source>Connect through SOCKS5 proxy</source>
+        <translation>Connetti attraverso SOCKS5 proxy</translation>
+    </message>
+    <message>
+        <source>Error loading wallet.dat: Wallet requires newer version of Bitcoin Core</source>
+        <translation>Errore caricamento wallet.dat: il wallet richiede una versione nuova di Bitcoin Core</translation>
+    </message>
+    <message>
+        <source>Fee (in BTC/kB) to add to transactions you send (default: %s)</source>
+        <translation>Commissione (in BTC/kB) da aggiungere alla transazione che invii (default: %s)</translation>
+    </message>
+    <message>
         <source>Information</source>
         <translation>Informazioni</translation>
     </message>
@@ -2981,6 +3070,10 @@ ad esempio: alertnotify=echo %%s | mail -s "Allarme Bitcoin" admin@foo.com
         <translation>Invia le informazioni di trace/debug alla console invece che al file debug.log</translation>
     </message>
     <message>
+        <source>Send transactions as zero-fee transactions if possible (default: %u)</source>
+        <translation>Invia transazioni a zero commissioni se possibile (default: %u)</translation>
+    </message>
+    <message>
         <source>Show all debugging options (usage: --help -help-debug)</source>
         <translation>Mostra tutte le opzioni di debug (utilizzo: --help -help-debug)</translation>
     </message>
@@ -3086,10 +3179,62 @@ ad esempio: alertnotify=echo %%s | mail -s "Allarme Bitcoin" admin@foo.com
         <translation>Errore caricamento wallet.dat</translation>
     </message>
     <message>
+        <source>Force safe mode (default: %u)</source>
+        <translation>Forza modalità provvisoria (dafault: %u)</translation>
+    </message>
+    <message>
+        <source>Generate coins (default: %u)</source>
+        <translation>Genera coins (default: %u)</translation>
+    </message>
+    <message>
+        <source>How many blocks to check at startup (default: %u, 0 = all)</source>
+        <translation>Quanti blocchi da controllare all'avvio (dafault: %u, 0 = tutti)</translation>
+    </message>
+    <message>
         <source>Invalid -proxy address: '%s'</source>
         <translation>Indirizzo -proxy non valido: '%s'</translation>
     </message>
     <message>
+        <source>Maintain at most &lt;n&gt; connections to peers (default: %u)</source>
+        <translation>Mantieni al massimo &lt;n&gt; connessioni ai peers (default: %u)</translation>
+    </message>
+    <message>
+        <source>Prepend debug output with timestamp (default: %u)</source>
+        <translation>Pretendi output di debug con timestamp (default: %u)</translation>
+    </message>
+    <message>
+        <source>Print block tree on startup (default: %u)</source>
+        <translation>Stampa l'albero dei blocchi all'avvio (default: %u)</translation>
+    </message>
+    <message>
+        <source>Server certificate file (default: %s)</source>
+        <translation>File certificato del server (default: %s)</translation>
+    </message>
+    <message>
+        <source>Server private key (default: %s)</source>
+        <translation>Chiave privata del server (default: %s)</translation>
+    </message>
+    <message>
+        <source>Specify configuration file (default: %s)</source>
+        <translation>Specifica il file di configurazione (default: %s)</translation>
+    </message>
+    <message>
+        <source>Specify connection timeout in milliseconds (minimum: 1, default: %d)</source>
+        <translation>Specifica il timeout di connessione in millisecondi (minimo:1, default: %d)</translation>
+    </message>
+    <message>
+        <source>Specify pid file (default: %s)</source>
+        <translation>Specifica il file pid (default: %s)</translation>
+    </message>
+    <message>
+        <source>Spend unconfirmed change when sending transactions (default: %u)</source>
+        <translation>Spendi il resto non confermato quando si inviano transazioni (default: %u)</translation>
+    </message>
+    <message>
+        <source>Stop running after importing blocks from disk (default: %u)</source>
+        <translation>Interrompi dopo aver importato i blocchi dal disco (default: %u)</translation>
+    </message>
+    <message>
         <source>Unknown network specified in -onlynet: '%s'</source>
         <translation>Rete sconosciuta specificata in -onlynet: '%s'</translation>
     </message>
diff --git a/src/qt/locale/bitcoin_ja.ts b/src/qt/locale/bitcoin_ja.ts
index dd2d8c8c72..0c9805de8f 100644
--- a/src/qt/locale/bitcoin_ja.ts
+++ b/src/qt/locale/bitcoin_ja.ts
@@ -70,6 +70,10 @@
         <translation>これらは支払いを送信するためのあなたの Bitcoin アドレスです。コインを送信する前に、常に額と受信アドレスを確認してください。</translation>
     </message>
     <message>
+        <source>These are your Bitcoin addresses for receiving payments. It is recommended to use a new receiving address for each transaction.</source>
+        <translation>これらは支払いを受け取るためのビットコインアドレスです。トランザクションごとに新しい受け取り用アドレスを作成することが推奨されます。</translation>
+    </message>
+    <message>
         <source>Copy &amp;Label</source>
         <translation>ラベルをコピー (&amp;L)</translation>
     </message>
@@ -89,7 +93,11 @@
         <source>Exporting Failed</source>
         <translation>エクスポート失敗</translation>
     </message>
-    </context>
+    <message>
+        <source>There was an error trying to save the address list to %1. Please try again.</source>
+        <translation>トランザクション履歴を %1 へ保存する際にエラーが発生しました。再試行してください。</translation>
+    </message>
+</context>
 <context>
     <name>AddressTableModel</name>
     <message>
@@ -176,6 +184,10 @@
         <translation>ウォレットは暗号化されました</translation>
     </message>
     <message>
+        <source>Enter the new passphrase to the wallet.&lt;br/&gt;Please use a passphrase of &lt;b&gt;ten or more random characters&lt;/b&gt;, or &lt;b&gt;eight or more words&lt;/b&gt;.</source>
+        <translation>ウォレットの新しいパスフレーズを入力してください。&lt;br/&gt;&lt;b&gt;10文字以上のランダムな文字&lt;/b&gt;で構成されたものか、&lt;b&gt;8単語以上の単語&lt;/b&gt;で構成されたパスフレーズを使用してください。</translation>
+    </message>
+    <message>
         <source>Bitcoin will close now to finish the encryption process. Remember that encrypting your wallet cannot fully protect your bitcoins from being stolen by malware infecting your computer.</source>
         <translation>Bitcoin は暗号化プロセスを終了するために今すぐ終了します。あなたのコンピュータがマルウェアに感染してコインを盗まれることもあるので、暗号化してもあなたのウォレットを完全に保護できないことを覚えていてください。</translation>
     </message>
@@ -283,6 +295,10 @@
         <translation>URI を開く (&amp;U)...</translation>
     </message>
     <message>
+        <source>Bitcoin Core client</source>
+        <translation>Bitcoinコア クライアント</translation>
+    </message>
+    <message>
         <source>Importing blocks from disk...</source>
         <translation>ディスクからブロックをインポートしています...</translation>
     </message>
@@ -335,6 +351,10 @@
         <translation>受信 (&amp;R)</translation>
     </message>
     <message>
+        <source>Show information about Bitcoin Core</source>
+        <translation>Bitcoinコアに関する情報を表示</translation>
+    </message>
+    <message>
         <source>&amp;Show / Hide</source>
         <translation>見る/隠す (&amp;S)</translation>
     </message>
@@ -375,10 +395,18 @@
         <translation>Bitcoin のコア</translation>
     </message>
     <message>
+        <source>Request payments (generates QR codes and bitcoin: URIs)</source>
+        <translation>支払いを要求する (QRコードとbitcoin:ではじまるURIを生成する)</translation>
+    </message>
+    <message>
         <source>&amp;About Bitcoin Core</source>
         <translation>ビットコインコアについて (&amp;A)</translation>
     </message>
     <message>
+        <source>Show the list of used sending addresses and labels</source>
+        <translation>使用済みの送金用アドレスとラベルの一覧を表示する</translation>
+    </message>
+    <message>
         <source>Show the list of used receiving addresses and labels</source>
         <translation>支払いを受け取るアドレスとラベルのリストを表示する</translation>
     </message>
@@ -484,6 +512,10 @@ Address: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>コイン選択</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>数量:</translation>
     </message>
@@ -556,6 +588,14 @@ Address: %4
         <translation>取引 ID をコピー</translation>
     </message>
     <message>
+        <source>Lock unspent</source>
+        <translation>未使用トランザクションをロックする</translation>
+    </message>
+    <message>
+        <source>Unlock unspent</source>
+        <translation>未使用トランザクションをアンロックする</translation>
+    </message>
+    <message>
         <source>Copy quantity</source>
         <translation>数量をコピーする</translation>
     </message>
@@ -677,6 +717,10 @@ Address: %4
         <translation>バージョン</translation>
     </message>
     <message>
+        <source>About Bitcoin Core</source>
+        <translation>Bitcoinコアについて</translation>
+    </message>
+    <message>
         <source>Command-line options</source>
         <translation>コマンドライン オプション</translation>
     </message>
@@ -735,7 +779,15 @@ Address: %4
         <source>Error</source>
         <translation>エラー</translation>
     </message>
-    </context>
+    <message numerus="yes">
+        <source>%n GB of free space available</source>
+        <translation><numerusform>%n GBの空き容量が利用可能</numerusform></translation>
+    </message>
+    <message numerus="yes">
+        <source>(of %n GB needed)</source>
+        <translation><numerusform>(%n GB必要)</numerusform></translation>
+    </message>
+</context>
 <context>
     <name>OpenURIDialog</name>
     <message>
@@ -786,6 +838,14 @@ Address: %4
         <translation>MB</translation>
     </message>
     <message>
+        <source>Number of script &amp;verification threads</source>
+        <translation>スクリプト検証用スレッド数 (&amp;V)</translation>
+    </message>
+    <message>
+        <source>Accept connections from outside</source>
+        <translation>外部からの接続を許可する</translation>
+    </message>
+    <message>
         <source>IP address of the proxy (e.g. IPv4: 127.0.0.1 / IPv6: ::1)</source>
         <translation>プロキシのIPアドレス (例えば IPv4: 127.0.0.1 / IPv6: ::1)</translation>
     </message>
@@ -933,6 +993,14 @@ Address: %4
         <translation>あなたの現在の残高</translation>
     </message>
     <message>
+        <source>Recent transactions</source>
+        <translation>最近のトランザクション</translation>
+    </message>
+    <message>
+        <source>Mined balance in watch-only addresses that has not yet matured</source>
+        <translation>ウォッチオンリーアドレスの採掘された残高のうち、成熟していないもの</translation>
+    </message>
+    <message>
         <source>out of sync</source>
         <translation>同期していない</translation>
     </message>
@@ -948,6 +1016,14 @@ Address: %4
         <translation>支払いのアドレス「%1」は無効です</translation>
     </message>
     <message>
+        <source>Payment request rejected</source>
+        <translation>支払い要求は拒否されました</translation>
+    </message>
+    <message>
+        <source>Payment request has expired.</source>
+        <translation>支払いのリクエストは期限切れです</translation>
+    </message>
+    <message>
         <source>Payment request error</source>
         <translation>支払いのリクエストのエラーです</translation>
     </message>
@@ -974,6 +1050,10 @@ Address: %4
 </context>
 <context>
     <name>PeerTableModel</name>
+    <message>
+        <source>User Agent</source>
+        <translation>ユーザエージェント</translation>
+    </message>
     </context>
 <context>
     <name>QObject</name>
@@ -1064,6 +1144,10 @@ Address: %4
         <translation>現在のブロック数</translation>
     </message>
     <message>
+        <source>User Agent</source>
+        <translation>ユーザエージェント</translation>
+    </message>
+    <message>
         <source>Last block time</source>
         <translation>最終ブロックの日時</translation>
     </message>
@@ -1155,6 +1239,10 @@ Address: %4
         <translation>メッセージ (&amp;M):</translation>
     </message>
     <message>
+        <source>Clear all fields of the form.</source>
+        <translation>全ての入力項目をクリア</translation>
+    </message>
+    <message>
         <source>Clear</source>
         <translation>クリア</translation>
     </message>
@@ -1163,6 +1251,10 @@ Address: %4
         <translation>表示</translation>
     </message>
     <message>
+        <source>Remove the selected entries from the list</source>
+        <translation>リストから選択項目を削除</translation>
+    </message>
+    <message>
         <source>Copy label</source>
         <translation>ラベルをコピーする</translation>
     </message>
@@ -1308,6 +1400,10 @@ Address: %4
         <translation>受取人を追加 (&amp;R)</translation>
     </message>
     <message>
+        <source>Clear all fields of the form.</source>
+        <translation>全ての入力項目をクリア</translation>
+    </message>
+    <message>
         <source>Clear &amp;All</source>
         <translation>すべてクリア (&amp;A)</translation>
     </message>
@@ -1433,7 +1529,15 @@ Address: %4
 </context>
 <context>
     <name>ShutdownWindow</name>
-    </context>
+    <message>
+        <source>Bitcoin Core is shutting down...</source>
+        <translation>Bitcoin Coreをシャットダウンしています。</translation>
+    </message>
+    <message>
+        <source>Do not shut down the computer until this window disappears.</source>
+        <translation>このウィンドウが消えるまでコンピュータをシャットダウンしないで下さい。</translation>
+    </message>
+</context>
 <context>
     <name>SignVerifyMessageDialog</name>
     <message>
@@ -1956,7 +2060,11 @@ Address: %4
     </context>
 <context>
     <name>WalletFrame</name>
-    </context>
+    <message>
+        <source>No wallet has been loaded.</source>
+        <translation>ウォレットがロードされていません</translation>
+    </message>
+</context>
 <context>
     <name>WalletModel</name>
     <message>
diff --git a/src/qt/locale/bitcoin_kk_KZ.ts b/src/qt/locale/bitcoin_kk_KZ.ts
index 3d38b00217..5a39417a7a 100644
--- a/src/qt/locale/bitcoin_kk_KZ.ts
+++ b/src/qt/locale/bitcoin_kk_KZ.ts
@@ -10,10 +10,22 @@
         <translation>Жаңа адрес енгізу</translation>
     </message>
     <message>
+        <source>&amp;New</source>
+        <translation>Жаңа</translation>
+    </message>
+    <message>
         <source>Copy the currently selected address to the system clipboard</source>
         <translation>Таңдаған адресті тізімнен жою</translation>
     </message>
     <message>
+        <source>C&amp;lose</source>
+        <translation>Жабу</translation>
+    </message>
+    <message>
+        <source>&amp;Export</source>
+        <translation>Экспорт</translation>
+    </message>
+    <message>
         <source>&amp;Delete</source>
         <translation>Жою</translation>
     </message>
@@ -78,6 +90,90 @@
     </context>
 <context>
     <name>BitcoinGUI</name>
+    <message>
+        <source>&amp;Transactions</source>
+        <translation>&amp;Транзакциялар</translation>
+    </message>
+    <message>
+        <source>E&amp;xit</source>
+        <translation>Шығу</translation>
+    </message>
+    <message>
+        <source>&amp;Options...</source>
+        <translation>Параметрлері</translation>
+    </message>
+    <message>
+        <source>&amp;Backup Wallet...</source>
+        <translation>Әмиянды жасыру</translation>
+    </message>
+    <message>
+        <source>&amp;Change Passphrase...</source>
+        <translation>Құпия сөзді өзгерту</translation>
+    </message>
+    <message>
+        <source>Bitcoin</source>
+        <translation>Биткоин</translation>
+    </message>
+    <message>
+        <source>Wallet</source>
+        <translation>Әмиян</translation>
+    </message>
+    <message>
+        <source>&amp;Send</source>
+        <translation>Жіберу</translation>
+    </message>
+    <message>
+        <source>&amp;Receive</source>
+        <translation>Алу</translation>
+    </message>
+    <message>
+        <source>&amp;File</source>
+        <translation>Файл</translation>
+    </message>
+    <message>
+        <source>&amp;Help</source>
+        <translation>Көмек</translation>
+    </message>
+    <message numerus="yes">
+        <source>%n hour(s)</source>
+        <translation><numerusform>%n сағат</numerusform></translation>
+    </message>
+    <message numerus="yes">
+        <source>%n day(s)</source>
+        <translation><numerusform>%n күн</numerusform></translation>
+    </message>
+    <message numerus="yes">
+        <source>%n week(s)</source>
+        <translation><numerusform>%n апта</numerusform></translation>
+    </message>
+    <message>
+        <source>%1 and %2</source>
+        <translation>%1 немесе %2</translation>
+    </message>
+    <message numerus="yes">
+        <source>%n year(s)</source>
+        <translation><numerusform>%n жыл</numerusform></translation>
+    </message>
+    <message>
+        <source>%1 behind</source>
+        <translation>%1 қалмады</translation>
+    </message>
+    <message>
+        <source>Error</source>
+        <translation>қате</translation>
+    </message>
+    <message>
+        <source>Warning</source>
+        <translation>Ескерту</translation>
+    </message>
+    <message>
+        <source>Information</source>
+        <translation>Информация</translation>
+    </message>
+    <message>
+        <source>Up to date</source>
+        <translation>Жаңартылған</translation>
+    </message>
     </context>
 <context>
     <name>ClientModel</name>
@@ -85,12 +181,60 @@
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Amount:</source>
+        <translation>Саны</translation>
+    </message>
+    <message>
+        <source>Priority:</source>
+        <translation>Басымдық</translation>
+    </message>
+    <message>
+        <source>Fee:</source>
+        <translation>Комиссия</translation>
+    </message>
+    <message>
+        <source>Dust:</source>
+        <translation>Шаң</translation>
+    </message>
+    <message>
+        <source>After Fee:</source>
+        <translation>Комиссия алу кейін</translation>
+    </message>
+    <message>
+        <source>Amount</source>
+        <translation>Саны</translation>
+    </message>
+    <message>
+        <source>Date</source>
+        <translation>Күні</translation>
+    </message>
+    <message>
+        <source>Confirmations</source>
+        <translation>Растау саны</translation>
+    </message>
+    <message>
+        <source>Confirmed</source>
+        <translation>Растық</translation>
+    </message>
+    <message>
+        <source>Priority</source>
+        <translation>Басымдық</translation>
+    </message>
+    <message>
+        <source>no</source>
+        <translation>жоқ</translation>
+    </message>
+    <message>
         <source>(no label)</source>
         <translation>(таңбасыз)</translation>
     </message>
     </context>
 <context>
     <name>EditAddressDialog</name>
+    <message>
+        <source>&amp;Address</source>
+        <translation>Адрес</translation>
+    </message>
     </context>
 <context>
     <name>FreespaceChecker</name>
@@ -100,6 +244,10 @@
     </context>
 <context>
     <name>Intro</name>
+    <message>
+        <source>Error</source>
+        <translation>қате</translation>
+    </message>
     </context>
 <context>
     <name>OpenURIDialog</name>
@@ -118,6 +266,10 @@
     </context>
 <context>
     <name>QObject</name>
+    <message>
+        <source>Amount</source>
+        <translation>Саны</translation>
+    </message>
     </context>
 <context>
     <name>QRImageWidget</name>
@@ -135,6 +287,10 @@
         <translation>Адрес</translation>
     </message>
     <message>
+        <source>Amount</source>
+        <translation>Саны</translation>
+    </message>
+    <message>
         <source>Label</source>
         <translation>таңба</translation>
     </message>
@@ -142,10 +298,18 @@
 <context>
     <name>RecentRequestsTableModel</name>
     <message>
+        <source>Date</source>
+        <translation>Күні</translation>
+    </message>
+    <message>
         <source>Label</source>
         <translation>таңба</translation>
     </message>
     <message>
+        <source>Amount</source>
+        <translation>Саны</translation>
+    </message>
+    <message>
         <source>(no label)</source>
         <translation>(таңбасыз)</translation>
     </message>
@@ -153,6 +317,26 @@
 <context>
     <name>SendCoinsDialog</name>
     <message>
+        <source>Amount:</source>
+        <translation>Саны</translation>
+    </message>
+    <message>
+        <source>Priority:</source>
+        <translation>Басымдық</translation>
+    </message>
+    <message>
+        <source>Fee:</source>
+        <translation>Комиссия:</translation>
+    </message>
+    <message>
+        <source>After Fee:</source>
+        <translation>Комиссия алу кейін:</translation>
+    </message>
+    <message>
+        <source>Dust:</source>
+        <translation>Шаң</translation>
+    </message>
+    <message>
         <source>(no label)</source>
         <translation>(таңбасыз)</translation>
     </message>
@@ -174,6 +358,14 @@
     </context>
 <context>
     <name>TransactionDesc</name>
+    <message>
+        <source>Date</source>
+        <translation>Күні</translation>
+    </message>
+    <message>
+        <source>Amount</source>
+        <translation>Саны</translation>
+    </message>
     </context>
 <context>
     <name>TransactionDescDialog</name>
@@ -181,6 +373,10 @@
 <context>
     <name>TransactionTableModel</name>
     <message>
+        <source>Date</source>
+        <translation>Күні</translation>
+    </message>
+    <message>
         <source>Address</source>
         <translation>Адрес</translation>
     </message>
@@ -192,6 +388,14 @@
         <translation>Үтірмен бөлінген файл (*.csv)</translation>
     </message>
     <message>
+        <source>Confirmed</source>
+        <translation>Растық</translation>
+    </message>
+    <message>
+        <source>Date</source>
+        <translation>Күні</translation>
+    </message>
+    <message>
         <source>Label</source>
         <translation>таңба</translation>
     </message>
@@ -211,10 +415,18 @@
     </context>
 <context>
     <name>WalletView</name>
+    <message>
+        <source>&amp;Export</source>
+        <translation>Экспорт</translation>
+    </message>
     </context>
 <context>
     <name>bitcoin-core</name>
     <message>
+        <source>Information</source>
+        <translation>Информация</translation>
+    </message>
+    <message>
         <source>Transaction amount too small</source>
         <translation>Транзакция өте кішкентай</translation>
     </message>
@@ -222,5 +434,13 @@
         <source>Transaction too large</source>
         <translation>Транзакция өте үлкен</translation>
     </message>
-    </context>
+    <message>
+        <source>Warning</source>
+        <translation>Ескерту</translation>
+    </message>
+    <message>
+        <source>Error</source>
+        <translation>қате</translation>
+    </message>
+</context>
 </TS>
 \ No newline at end of file
diff --git a/src/qt/locale/bitcoin_nl.ts b/src/qt/locale/bitcoin_nl.ts
index e57362d7fd..258c7f109f 100644
--- a/src/qt/locale/bitcoin_nl.ts
+++ b/src/qt/locale/bitcoin_nl.ts
@@ -67,7 +67,7 @@
     </message>
     <message>
         <source>These are your Bitcoin addresses for sending payments. Always check the amount and the receiving address before sending coins.</source>
-        <translation>Dit zijn uw Bitcoinadressen om betalingen mee te verzenden. Check altijd het bedrag en het ontvangende adres voordat u uw bitcoins verzendt.</translation>
+        <translation>Dit zijn uw Bitcoinadressen om betalingen mee te verzenden. Controleer altijd het bedrag en het ontvangende adres voordat u uw bitcoins verzendt.</translation>
     </message>
     <message>
         <source>These are your Bitcoin addresses for receiving payments. It is recommended to use a new receiving address for each transaction.</source>
@@ -478,6 +478,10 @@
         <source>Up to date</source>
         <translation>Bijgewerkt</translation>
     </message>
+    <message numerus="yes">
+        <source>Processed %n blocks of transaction history.</source>
+        <translation><numerusform>%n Blok verwerkt van transactie geschiedenis.</numerusform><numerusform>%n Blokken verwerkt van transactie geschiedenis.</numerusform></translation>
+    </message>
     <message>
         <source>Catching up...</source>
         <translation>Aan het bijwerken...</translation>
@@ -521,6 +525,10 @@ Adres: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>Munt Selectie</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>Kwantiteit</translation>
     </message>
@@ -569,6 +577,14 @@ Adres: %4
         <translation>Bedrag</translation>
     </message>
     <message>
+        <source>Received with label</source>
+        <translation>Ontvangen met label</translation>
+    </message>
+    <message>
+        <source>Received with address</source>
+        <translation>Ontvangen met adres</translation>
+    </message>
+    <message>
         <source>Date</source>
         <translation>Datum</translation>
     </message>
@@ -904,7 +920,11 @@ Adres: %4
         <source>%n GB of free space available</source>
         <translation><numerusform>%n GB aan vrije oplsagruimte beschikbaar</numerusform><numerusform>%n GB aan vrije oplsagruimte beschikbaar</numerusform></translation>
     </message>
-    </context>
+    <message numerus="yes">
+        <source>(of %n GB needed)</source>
+        <translation><numerusform>(van %n GB nodig)</numerusform><numerusform>(van %n GB nodig)</numerusform></translation>
+    </message>
+</context>
 <context>
     <name>OpenURIDialog</name>
     <message>
@@ -1027,6 +1047,14 @@ Adres: %4
         <translation>Portmapping via &amp;UPnP</translation>
     </message>
     <message>
+        <source>Connect to the Bitcoin network through a SOCKS5 proxy.</source>
+        <translation>Verbind met het Bitcoin netwerk via een SOCKS5 proxy.</translation>
+    </message>
+    <message>
+        <source>&amp;Connect through SOCKS5 proxy (default proxy):</source>
+        <translation>&amp;Verbind via een SOCKS5-proxy (standaardproxy):</translation>
+    </message>
+    <message>
         <source>Proxy &amp;IP:</source>
         <translation>Proxy &amp;IP:</translation>
     </message>
@@ -1158,6 +1186,10 @@ Adres: %4
         <translation>Gedolven saldo dat nog niet tot wasdom is gekomen</translation>
     </message>
     <message>
+        <source>Balances</source>
+        <translation>Saldi</translation>
+    </message>
+    <message>
         <source>Total:</source>
         <translation>Totaal:</translation>
     </message>
@@ -1166,10 +1198,30 @@ Adres: %4
         <translation>Uw totale saldo</translation>
     </message>
     <message>
+        <source>Your current balance in watch-only addresses</source>
+        <translation>Uw huidige balans in alleen-bekijkbare adressen</translation>
+    </message>
+    <message>
+        <source>Spendable:</source>
+        <translation>Besteedbaar:</translation>
+    </message>
+    <message>
         <source>Recent transactions</source>
         <translation>Recente transacties</translation>
     </message>
     <message>
+        <source>Unconfirmed transactions to watch-only addresses</source>
+        <translation>Onbevestigde transacties naar alleen-bekijkbare adressen</translation>
+    </message>
+    <message>
+        <source>Mined balance in watch-only addresses that has not yet matured</source>
+        <translation>Ontgonnen saldo dat nog niet tot wasdom is gekomen</translation>
+    </message>
+    <message>
+        <source>Current total balance in watch-only addresses</source>
+        <translation>Huidige balans in alleen-bekijkbare adressen.</translation>
+    </message>
+    <message>
         <source>out of sync</source>
         <translation>niet gesynchroniseerd</translation>
     </message>
@@ -1189,10 +1241,18 @@ Adres: %4
         <translation>Betalingsverzoek geweigerd</translation>
     </message>
     <message>
+        <source>Payment request network doesn't match client network.</source>
+        <translation>Betalingsaanvraagnetwerk komt niet overeen met klantennetwerk.</translation>
+    </message>
+    <message>
         <source>Payment request has expired.</source>
         <translation>Betalingsverzoek is verlopen.</translation>
     </message>
     <message>
+        <source>Payment request is not initialized.</source>
+        <translation>Betalingsaanvraag is niet geïnitialiseerd.</translation>
+    </message>
+    <message>
         <source>Requested payment amount of %1 is too small (considered dust).</source>
         <translation>Het gevraagde betalingsbedrag van %1 is te weinig (beschouwd als stof).</translation>
     </message>
@@ -1209,10 +1269,18 @@ Adres: %4
         <translation>URL om betalingsverzoek te verkrijgen is ongeldig: %1</translation>
     </message>
     <message>
+        <source>URI cannot be parsed! This can be caused by an invalid Bitcoin address or malformed URI parameters.</source>
+        <translation>URI kan niet verwerkt worden! Dit kan het gevolg zijn van een ongeldig Bitcoin adres of misvormde URI parameters.</translation>
+    </message>
+    <message>
         <source>Payment request file handling</source>
         <translation>Betalingsverzoek bestandsafhandeling</translation>
     </message>
     <message>
+        <source>Payment request file cannot be read! This can be caused by an invalid payment request file.</source>
+        <translation>Betalingsverzoek-bestand kan niet gelezen of verwerkt worden! Dit kan veroorzaakt worden door een ongeldig betalingsverzoek-bestand.</translation>
+    </message>
+    <message>
         <source>Unverified payment requests to custom payment scripts are unsupported.</source>
         <translation>Niet-geverifieerde betalingsverzoeken naar aangepaste betaling scripts worden niet ondersteund.</translation>
     </message>
@@ -1225,6 +1293,10 @@ Adres: %4
         <translation>Fout bij communiceren met %1: %2</translation>
     </message>
     <message>
+        <source>Payment request cannot be parsed!</source>
+        <translation>Betalingsverzoek kan niet juist worden ontleed of verwerkt!</translation>
+    </message>
+    <message>
         <source>Bad response from server %1</source>
         <translation>Ongeldige respons van server %1</translation>
     </message>
@@ -1243,7 +1315,15 @@ Adres: %4
         <source>User Agent</source>
         <translation>User Agent</translation>
     </message>
-    </context>
+    <message>
+        <source>Address/Hostname</source>
+        <translation>Adres/Hostnaam</translation>
+    </message>
+    <message>
+        <source>Ping Time</source>
+        <translation>Ping tijd</translation>
+    </message>
+</context>
 <context>
     <name>QObject</name>
     <message>
@@ -1341,6 +1421,10 @@ Adres: %4
         <translation>Gebruikt OpenSSL versie</translation>
     </message>
     <message>
+        <source>Using BerkeleyDB version</source>
+        <translation>Gebruikt BerkeleyDB versie</translation>
+    </message>
+    <message>
         <source>Startup time</source>
         <translation>Opstarttijd</translation>
     </message>
@@ -1373,6 +1457,14 @@ Adres: %4
         <translation>Verstuurd</translation>
     </message>
     <message>
+        <source>&amp;Peers</source>
+        <translation>&amp;Peers</translation>
+    </message>
+    <message>
+        <source>Select a peer to view detailed information.</source>
+        <translation>Selecteer een peer om gedetailleerde informatie te bekijken.</translation>
+    </message>
+    <message>
         <source>Direction</source>
         <translation>Directie</translation>
     </message>
@@ -1389,6 +1481,18 @@ Adres: %4
         <translation>Services</translation>
     </message>
     <message>
+        <source>Starting Height</source>
+        <translation>Aanvangshoogte</translation>
+    </message>
+    <message>
+        <source>Sync Height</source>
+        <translation>Synchronisatiehoogte</translation>
+    </message>
+    <message>
+        <source>Ban Score</source>
+        <translation>Ban score</translation>
+    </message>
+    <message>
         <source>Connection Time</source>
         <translation>Connectie tijd</translation>
     </message>
@@ -1409,6 +1513,10 @@ Adres: %4
         <translation>Bytes Ontvangen</translation>
     </message>
     <message>
+        <source>Ping Time</source>
+        <translation>Ping Tijd</translation>
+    </message>
+    <message>
         <source>Last block time</source>
         <translation>Tijd laatste blok</translation>
     </message>
@@ -1493,10 +1601,22 @@ Adres: %4
         <translation>nooit</translation>
     </message>
     <message>
+        <source>Inbound</source>
+        <translation>Inkomend</translation>
+    </message>
+    <message>
+        <source>Outbound</source>
+        <translation>Uitgaand</translation>
+    </message>
+    <message>
         <source>Unknown</source>
         <translation>Onbekend</translation>
     </message>
-    </context>
+    <message>
+        <source>Fetching...</source>
+        <translation>Ophalen...</translation>
+    </message>
+</context>
 <context>
     <name>ReceiveCoinsDialog</name>
     <message>
@@ -1725,6 +1845,50 @@ Adres: %4
         <translation>Aangepast wisselgeldadres</translation>
     </message>
     <message>
+        <source>Transaction Fee:</source>
+        <translation>Transactiekosten:</translation>
+    </message>
+    <message>
+        <source>Choose...</source>
+        <translation>Kies...</translation>
+    </message>
+    <message>
+        <source>Minimize</source>
+        <translation>Minimaliseer</translation>
+    </message>
+    <message>
+        <source>per kilobyte</source>
+        <translation>per kilobyte</translation>
+    </message>
+    <message>
+        <source>total at least</source>
+        <translation>totaal ten minste</translation>
+    </message>
+    <message>
+        <source>Recommended:</source>
+        <translation>Aanbevolen:</translation>
+    </message>
+    <message>
+        <source>Custom:</source>
+        <translation>Handmatig:</translation>
+    </message>
+    <message>
+        <source>Confirmation time:</source>
+        <translation>Bevestigings tijd:</translation>
+    </message>
+    <message>
+        <source>normal</source>
+        <translation>normaal</translation>
+    </message>
+    <message>
+        <source>fast</source>
+        <translation>snel</translation>
+    </message>
+    <message>
+        <source>(confirmation may take longer)</source>
+        <translation>(bevestiging kan langer duren)</translation>
+    </message>
+    <message>
         <source>Send to multiple recipients at once</source>
         <translation>Verstuur aan verschillende ontvangers ineens</translation>
     </message>
@@ -1829,6 +1993,18 @@ Adres: %4
         <translation>De transactie was afgewezen. Dit kan gebeuren als u eerder uitgegeven munten opnieuw wilt versturen, zoals wanneer u een kopie van uw wallet.dat heeft gebruikt en in de kopie deze munten zijn gemarkeerd als uitgegeven, maar in de huidige nog niet.</translation>
     </message>
     <message>
+        <source>A fee higher than %1 is considered an insanely high fee.</source>
+        <translation>Transactiekosten hoger dan %1 worden gezien als waanzinnig hoog.</translation>
+    </message>
+    <message>
+        <source>Pay only the minimum fee of %1</source>
+        <translation>Betaal alleen de minimale transactiekosten van %1</translation>
+    </message>
+    <message>
+        <source>Estimated to begin confirmation within %1 block(s).</source>
+        <translation>Beginnen van bevesting geschat binnen %1 blok(ken).</translation>
+    </message>
+    <message>
         <source>Warning: Invalid Bitcoin address</source>
         <translation>Waarschuwing: Ongeldig Bitcoin adres</translation>
     </message>
@@ -1880,6 +2056,10 @@ Adres: %4
         <translation>Dit is een normale betaling.</translation>
     </message>
     <message>
+        <source>The Bitcoin address to send the payment to</source>
+        <translation>Het Bitcoin adres om betaling aan te voldoen</translation>
+    </message>
+    <message>
         <source>Alt+A</source>
         <translation>Alt+A</translation>
     </message>
@@ -1950,6 +2130,10 @@ Adres: %4
         <translation>U kunt berichten ondertekenen met een van uw adressen om te bewijzen dat u dit adres bezit. Pas op dat u geen onduidelijke dingen ondertekent, want phishingaanvallen zouden u kunnen misleiden om zo uw identiteit te stelen. Onderteken alleen berichten waarmee u het volledig eens bent.</translation>
     </message>
     <message>
+        <source>The Bitcoin address to sign the message with</source>
+        <translation>Het Bitcoin adres om bericht mee te ondertekenen</translation>
+    </message>
+    <message>
         <source>Choose previously used address</source>
         <translation>Kies een eerder gebruikt adres</translation>
     </message>
@@ -2002,6 +2186,10 @@ Adres: %4
         <translation>Voer het ondertekenende adres, bericht en handtekening hieronder in (let erop dat u nieuwe regels, spaties en tabs juist overneemt) om de handtekening te verifiëren. Let erop dat u niet meer uit het bericht interpreteert dan er daadwerkelijk staat,  om te voorkomen dat u wordt misleid in een man-in-the-middle-aanval.</translation>
     </message>
     <message>
+        <source>The Bitcoin address the message was signed with</source>
+        <translation>Het Bitcoin adres waarmee het bericht ondertekend is</translation>
+    </message>
+    <message>
         <source>Verify the message to ensure it was signed with the specified Bitcoin address</source>
         <translation>Controleer een bericht om te verifiëren dat het gespecificeerde Bitcoinadres het bericht heeft ondertekend.</translation>
     </message>
@@ -2143,6 +2331,10 @@ Adres: %4
         <translation>eigen adres</translation>
     </message>
     <message>
+        <source>watch-only</source>
+        <translation>alleen-bekijkbaar</translation>
+    </message>
+    <message>
         <source>label</source>
         <translation>label</translation>
     </message>
@@ -2163,6 +2355,14 @@ Adres: %4
         <translation>Debet</translation>
     </message>
     <message>
+        <source>Total debit</source>
+        <translation>Totaal debit</translation>
+    </message>
+    <message>
+        <source>Total credit</source>
+        <translation>Totaal credit</translation>
+    </message>
+    <message>
         <source>Transaction fee</source>
         <translation>Transactiekosten</translation>
     </message>
@@ -2313,6 +2513,10 @@ Adres: %4
         <translation>Gedolven</translation>
     </message>
     <message>
+        <source>watch-only</source>
+        <translation>alleen-bekijkbaar</translation>
+    </message>
+    <message>
         <source>(n/a)</source>
         <translation>(nvt)</translation>
     </message>
@@ -2424,6 +2628,10 @@ Adres: %4
         <translation>Exporteer Transactieverleden</translation>
     </message>
     <message>
+        <source>Watch-only</source>
+        <translation>Alleen-bekijkbaar</translation>
+    </message>
+    <message>
         <source>Exporting Failed</source>
         <translation>Export Mislukt</translation>
     </message>
@@ -2478,7 +2686,11 @@ Adres: %4
 </context>
 <context>
     <name>UnitDisplayStatusBarControl</name>
-    </context>
+    <message>
+        <source>Unit to show amounts in. Click to select another unit.</source>
+        <translation>Eenheid om bedragen uit te drukken. Klik om een andere eenheid te selecteren.</translation>
+    </message>
+</context>
 <context>
     <name>WalletFrame</name>
     <message>
@@ -2753,6 +2965,10 @@ bijvoorbeeld: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</tran
         <translation>Dit is bedoeld voor regressie test toepassingen en applicatie onwikkeling.</translation>
     </message>
     <message>
+        <source>Use UPnP to map the listening port (default: %u)</source>
+        <translation>Gebruik UPnP om de luisterende poort te mappen (standaard: %u)</translation>
+    </message>
+    <message>
         <source>Verifying blocks...</source>
         <translation>Blokken aan het controleren...</translation>
     </message>
@@ -2789,6 +3005,10 @@ bijvoorbeeld: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</tran
         <translation>Stel maximumgrootte in bytes in voor hoge-prioriteits-/lage-transactiekosten-transacties (standaard: %d)</translation>
     </message>
     <message>
+        <source>Error loading wallet.dat: Wallet requires newer version of Bitcoin Core</source>
+        <translation>Fout bij laden wallet.dat: Portemonnee vereist een nieuwere versie van Bitcoin Core</translation>
+    </message>
+    <message>
         <source>Information</source>
         <translation>Informatie</translation>
     </message>
@@ -2801,6 +3021,18 @@ bijvoorbeeld: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</tran
         <translation>Ongeldig bedrag voor -mintxfee=&lt;bedrag&gt;: '%s'</translation>
     </message>
     <message>
+        <source>Invalid amount for -paytxfee=&lt;amount&gt;: '%s' (must be at least %s)</source>
+        <translation>Ongeldig bedrag voor -paytxfee=&lt;bedrag&gt;: '%s' (Minimum %s)</translation>
+    </message>
+    <message>
+        <source>Keep at most &lt;n&gt; unconnectable blocks in memory (default: %u)</source>
+        <translation>Houd maximaal &lt;n&gt; onverbonden blokken in geheugen (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Keep at most &lt;n&gt; unconnectable transactions in memory (default: %u)</source>
+        <translation>Houd maximaal &lt;n&gt; onverbonden transacties in geheugen (standaard: %u)</translation>
+    </message>
+    <message>
         <source>Print block on startup, if found in block index</source>
         <translation>Toon block bij opstarten, wanneer gevonden in block index</translation>
     </message>
@@ -2917,14 +3149,134 @@ bijvoorbeeld: alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</tran
         <translation>Fout bij laden wallet.dat: Portemonnee corrupt</translation>
     </message>
     <message>
+        <source>Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)</source>
+        <translation>Onderhoud een volledige transactieindex, gebruikt door de getrawtransaction rpc call (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Number of seconds to keep misbehaving peers from reconnecting (default: %u)</source>
+        <translation>Aantal seconden dat zich misdragende peers niet opnieuw kunnen verbinden (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Output debugging information (default: %u, supplying &lt;category&gt; is optional)</source>
+        <translation>Output extra debugginginformatie (standaard: %u, het leveren van &lt;category&gt; is optioneel)</translation>
+    </message>
+    <message>
+        <source>Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)</source>
+        <translation>Gebruik een aparte SOCKS5 proxy om 'Tor hidden services' te bereiken (standaard: %s)</translation>
+    </message>
+    <message>
+        <source>Always query for peer addresses via DNS lookup (default: %u)</source>
+        <translation>Vind anderen door middel van een DNS-naslag (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Disable safemode, override a real safe mode event (default: %u)</source>
+        <translation>Veilige modus uitschakelen, hef een echte veilige modus gebeurtenis uit (default: %u)</translation>
+    </message>
+    <message>
         <source>Error loading wallet.dat</source>
         <translation>Fout bij laden wallet.dat</translation>
     </message>
     <message>
+        <source>Force safe mode (default: %u)</source>
+        <translation>Forceer veilige modus (default: %u)</translation>
+    </message>
+    <message>
+        <source>Generate coins (default: %u)</source>
+        <translation>Genereer munten (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>How many blocks to check at startup (default: %u, 0 = all)</source>
+        <translation>Aantal te checken blokken bij het opstarten (standaard: %u, 0 = allemaal)</translation>
+    </message>
+    <message>
         <source>Invalid -proxy address: '%s'</source>
         <translation>Ongeldig -proxy adres: '%s'</translation>
     </message>
     <message>
+        <source>Limit size of signature cache to &lt;n&gt; entries (default: %u)</source>
+        <translation>Limiteer grootte van de handtekening cache tot &lt;n&gt; entries (default: %u)</translation>
+    </message>
+    <message>
+        <source>Listen for JSON-RPC connections on &lt;port&gt; (default: %u or testnet: %u)</source>
+        <translation>Luister naar JSON-RPC-verbindingen op poort &lt;port&gt; (standaard: %u of testnet: %u)</translation>
+    </message>
+    <message>
+        <source>Listen for connections on &lt;port&gt; (default: %u or testnet: %u)</source>
+        <translation>Luister naar verbindingen op &lt;poort&gt; (standaard: %u of testnet: %u)</translation>
+    </message>
+    <message>
+        <source>Maintain at most &lt;n&gt; connections to peers (default: %u)</source>
+        <translation>Onderhoud maximaal &lt;n&gt; verbindingen naar peers (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Maximum per-connection receive buffer, &lt;n&gt;*1000 bytes (default: %u)</source>
+        <translation>Maximum per-connectie ontvangstbuffer, &lt;n&gt;*1000 bytes (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Maximum per-connection send buffer, &lt;n&gt;*1000 bytes (default: %u)</source>
+        <translation>Maximum per-connectie zendbuffer, &lt;n&gt;*1000 bytes (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Only accept block chain matching built-in checkpoints (default: %u)</source>
+        <translation>Accepteer alleen blokkenketen die overeenkomt met de ingebouwde checkpoints (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Prepend debug output with timestamp (default: %u)</source>
+        <translation>Prepend debug output met tijdstempel (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Print block tree on startup (default: %u)</source>
+        <translation>Toon block structuur bij opstarten (default: %u)</translation>
+    </message>
+    <message>
+        <source>Run a thread to flush wallet periodically (default: %u)</source>
+        <translation>Draai een proces om de wallet periodiek te flushen (default: %u)</translation>
+    </message>
+    <message>
+        <source>Server certificate file (default: %s)</source>
+        <translation>Certificaat-bestand voor server (standaard: %s)</translation>
+    </message>
+    <message>
+        <source>Server private key (default: %s)</source>
+        <translation>Geheime sleutel voor server (standaard: %s)</translation>
+    </message>
+    <message>
+        <source>Set key pool size to &lt;n&gt; (default: %u)</source>
+        <translation>Stel sleutelpoelgrootte in op &lt;&amp;&gt; (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Set minimum block size in bytes (default: %u)</source>
+        <translation>Stel minimum blokgrootte in in bytes (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Set the number of threads to service RPC calls (default: %d)</source>
+        <translation>Stel het aantal threads in om RPC-aanvragen mee te bedienen (standaard: %d)</translation>
+    </message>
+    <message>
+        <source>Sets the DB_PRIVATE flag in the wallet db environment (default: %u)</source>
+        <translation>Plaatst de DB_PRIVATE vlag in de wallet db omgeving (default: %u)</translation>
+    </message>
+    <message>
+        <source>Specify configuration file (default: %s)</source>
+        <translation>Specificeer configuratie bestand (standaard: %s)</translation>
+    </message>
+    <message>
+        <source>Specify connection timeout in milliseconds (minimum: 1, default: %d)</source>
+        <translation>Specificeer de time-out tijd in milliseconden (minimum: 1, standaard: %d)</translation>
+    </message>
+    <message>
+        <source>Specify pid file (default: %s)</source>
+        <translation>Specificeer pid-bestand (standaard: %s)</translation>
+    </message>
+    <message>
+        <source>Spend unconfirmed change when sending transactions (default: %u)</source>
+        <translation>Besteed onbevestigd wisselgeld bij het versturen van transacties (standaard: %u)</translation>
+    </message>
+    <message>
+        <source>Threshold for disconnecting misbehaving peers (default: %u)</source>
+        <translation>Drempel om verbinding te verbreken naar zich misdragende peers (standaard: %u)</translation>
+    </message>
+    <message>
         <source>Unknown network specified in -onlynet: '%s'</source>
         <translation>Onbekend netwerk gespecificeerd in -onlynet: '%s'</translation>
     </message>
diff --git a/src/qt/locale/bitcoin_ro_RO.ts b/src/qt/locale/bitcoin_ro_RO.ts
index ccae9482da..81342c5dbc 100644
--- a/src/qt/locale/bitcoin_ro_RO.ts
+++ b/src/qt/locale/bitcoin_ro_RO.ts
@@ -774,6 +774,10 @@ Adresa: %4
         <translation>versiunea</translation>
     </message>
     <message>
+        <source>(%1-bit)</source>
+        <translation>(%1-bit)</translation>
+    </message>
+    <message>
         <source>About Bitcoin Core</source>
         <translation>Despre Nucleul Bitcoin</translation>
     </message>
diff --git a/src/qt/locale/bitcoin_ru.ts b/src/qt/locale/bitcoin_ru.ts
index fa66297779..55986d4092 100644
--- a/src/qt/locale/bitcoin_ru.ts
+++ b/src/qt/locale/bitcoin_ru.ts
@@ -521,6 +521,10 @@ Address: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>Выбор монет</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>Количество:</translation>
     </message>
@@ -1845,16 +1849,36 @@ Address: %4
         <translation>Выберите...</translation>
     </message>
     <message>
+        <source>collapse fee-settings</source>
+        <translation>Свернуть настройки комиссии</translation>
+    </message>
+    <message>
         <source>Minimize</source>
         <translation>Сворачивать</translation>
     </message>
     <message>
+        <source>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then "per kilobyte" only pays 250 satoshis in fee, while "at least" pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</source>
+        <translation>Если комиссия установлена в 1000 сатоши, а транзакция составляет лишь 250 байт, тогда комиссия "на килобайт" составит 250 сатоши, а "как минимум" — 1000 сатоши. Для транзакций крупнее килобайта в обоих случаях будет использоваться платёж "на килобайт".</translation>
+    </message>
+    <message>
         <source>per kilobyte</source>
         <translation>за килобайт</translation>
     </message>
     <message>
+        <source>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then "per kilobyte" only pays 250 satoshis in fee, while "total at least" pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</source>
+        <translation>Если комиссия установлена в 1000 сатоши, а транзакция составляет лишь 250 байт, тогда комиссия "на килобайт" составит 250 сатоши, а "всего как минимум" — 1000 сатоши. Для транзакций крупнее килобайта в обоих случаях будет использоваться платёж "на килобайт".</translation>
+    </message>
+    <message>
         <source>total at least</source>
-        <translation>Итого</translation>
+        <translation>Итого как минимум</translation>
+    </message>
+    <message>
+        <source>Paying only the minimum fee is just fine as long as there is less transaction volume than space in the blocks. But be aware that this can end up in a never confirming transaction once there is more demand for bitcoin transactions than the network can process.</source>
+        <translation>Уплата минимальной комиссии — не проблема, пока объём транзакций меньше, чем свободное место в блоках. Учтите, однако, что такая транзакция может никогда не подтвердиться, если спрос на транзакции превышает возможности сети по их обработке.</translation>
+    </message>
+    <message>
+        <source>(read the tooltip)</source>
+        <translation>(прочтите подсказку)</translation>
     </message>
     <message>
         <source>Recommended:</source>
@@ -1865,6 +1889,10 @@ Address: %4
         <translation>Выборочно:</translation>
     </message>
     <message>
+        <source>(Smart fee not initialized yet. This usually takes a few blocks...)</source>
+        <translation>(Умная комиссия пока не инициализирована. Обычно для этого требуется несколько блоков...)</translation>
+    </message>
+    <message>
         <source>Confirmation time:</source>
         <translation>Время подтверждения:</translation>
     </message>
@@ -1994,7 +2022,7 @@ Address: %4
     </message>
     <message>
         <source>Estimated to begin confirmation within %1 block(s).</source>
-        <translation>Ожидается начать подтверждение через %1 блок(ов).</translation>
+        <translation>Начало подтверждения ожидается через %1 блок(ов).</translation>
     </message>
     <message>
         <source>Warning: Invalid Bitcoin address</source>
@@ -2799,6 +2827,10 @@ rpcpassword=%s
         <translation>Удалить все транзакции бумажника с возможностью восстановить эти части цепи блоков с помощью -rescan при запуске</translation>
     </message>
     <message>
+        <source>Distributed under the MIT software license, see the accompanying file COPYING or &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</source>
+        <translation>Распространяется под лицензией MIT, см. приложенный файл COPYING или &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</translation>
+    </message>
+    <message>
         <source>Enter regression test mode, which uses a special chain in which blocks can be solved instantly.</source>
         <translation>Войти в режим тестирования на регрессии, в котором используется специальная цепь, где блоки находятся мгновенно.</translation>
     </message>
@@ -3064,7 +3096,7 @@ rpcpassword=%s
     </message>
     <message>
         <source>Set the number of threads for coin generation if enabled (-1 = all cores, default: %d)</source>
-        <translation>Задать число потоков генерации монет, если включена (-1 = число ядер процессора, по умолчанию: %d)</translation>
+        <translation>Задать число потоков генерации монет, если она включена (-1 = все ядра процессора, по умолчанию: %d)</translation>
     </message>
     <message>
         <source>This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit &lt;https://www.openssl.org/&gt; and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard.</source>
@@ -3332,7 +3364,7 @@ rpcpassword=%s
     </message>
     <message>
         <source>Disable safemode, override a real safe mode event (default: %u)</source>
-        <translation>Отключить безопасный режим, отклонить реальное событие безопасного режима (по умолчанию: %u)</translation>
+        <translation>Отключить безопасный режим, перекрыть реальное событие безопасного режима (по умолчанию: %u)</translation>
     </message>
     <message>
         <source>Error loading wallet.dat</source>
diff --git a/src/qt/locale/bitcoin_sr.ts b/src/qt/locale/bitcoin_sr.ts
index 64c68a2226..b005ce23ad 100644
--- a/src/qt/locale/bitcoin_sr.ts
+++ b/src/qt/locale/bitcoin_sr.ts
@@ -3,15 +3,31 @@
     <name>AddressBookPage</name>
     <message>
         <source>Double-click to edit address or label</source>
-        <translation>Кликните два пута да промените адресу и/или етикету</translation>
+        <translation>Kliknite dva puta da izmenite adresu ili etiketu</translation>
     </message>
     <message>
         <source>Create a new address</source>
-        <translation>Прави нову адресу</translation>
+        <translation>Napravite novu adresu</translation>
+    </message>
+    <message>
+        <source>&amp;New</source>
+        <translation>Novo</translation>
     </message>
     <message>
         <source>Copy the currently selected address to the system clipboard</source>
-        <translation>Копира изабрану адресу на системски клипборд</translation>
+        <translation>Kopirajte trenutno izabranu adresu</translation>
+    </message>
+    <message>
+        <source>&amp;Copy</source>
+        <translation>Kopirajte</translation>
+    </message>
+    <message>
+        <source>&amp;Copy Address</source>
+        <translation>Kopirajte adresu</translation>
+    </message>
+    <message>
+        <source>Delete the currently selected address from the list</source>
+        <translation>Izbrisite trenutno izabranu adresu sa liste</translation>
     </message>
     <message>
         <source>&amp;Delete</source>
diff --git a/src/qt/locale/bitcoin_uk.ts b/src/qt/locale/bitcoin_uk.ts
index b6ba507e9b..9b5f4c9f4e 100644
--- a/src/qt/locale/bitcoin_uk.ts
+++ b/src/qt/locale/bitcoin_uk.ts
@@ -525,6 +525,10 @@ Address: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>Вибір Монет</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>Кількість:</translation>
     </message>
@@ -573,6 +577,14 @@ Address: %4
         <translation>Кількість</translation>
     </message>
     <message>
+        <source>Received with label</source>
+        <translation>Отримано з позначкою</translation>
+    </message>
+    <message>
+        <source>Received with address</source>
+        <translation>Отримано з адресою</translation>
+    </message>
+    <message>
         <source>Date</source>
         <translation>Дата</translation>
     </message>
@@ -1035,6 +1047,14 @@ Address: %4
         <translation>Відображення порту через &amp;UPnP</translation>
     </message>
     <message>
+        <source>Connect to the Bitcoin network through a SOCKS5 proxy.</source>
+        <translation>Підключення до мережі Bitcoin через SOCKS5 проксі.</translation>
+    </message>
+    <message>
+        <source>&amp;Connect through SOCKS5 proxy (default proxy):</source>
+        <translation>&amp;Підключення через SOCKS5 проксі (проксі за замовчуванням):</translation>
+    </message>
+    <message>
         <source>Proxy &amp;IP:</source>
         <translation>&amp;IP проксі:</translation>
     </message>
@@ -1825,6 +1845,78 @@ Address: %4
         <translation>Вказати адресу для решти</translation>
     </message>
     <message>
+        <source>Transaction Fee:</source>
+        <translation>Комісія за передачу:</translation>
+    </message>
+    <message>
+        <source>Choose...</source>
+        <translation>Виберіть...</translation>
+    </message>
+    <message>
+        <source>collapse fee-settings</source>
+        <translation>згорнути налаштування оплат</translation>
+    </message>
+    <message>
+        <source>Minimize</source>
+        <translation>Мінімізувати</translation>
+    </message>
+    <message>
+        <source>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then "per kilobyte" only pays 250 satoshis in fee, while "at least" pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</source>
+        <translation>Якщо оплата користувача встановлюється в 1000 Satoshi і розмір передачі всього 250 байт, то "за кілобайт" платить тільки 250 Satoshi, в той час як "щонайменше" платить 1000 satoshis. Для передач більших, ніж кілобайт обоє платять за кілобайт.</translation>
+    </message>
+    <message>
+        <source>per kilobyte</source>
+        <translation>за кілобайт</translation>
+    </message>
+    <message>
+        <source>If the custom fee is set to 1000 satoshis and the transaction is only 250 bytes, then "per kilobyte" only pays 250 satoshis in fee, while "total at least" pays 1000 satoshis. For transactions bigger than a kilobyte both pay by kilobyte.</source>
+        <translation>Якщо оплата користувача встановлюється в 1000 Satoshi і розмір передачі всього 250 байт, то "за кілобайт" платить тільки 250 Satoshi, в той час як "всього щонайменше" платить 1000 satoshis. Для передач більших, ніж кілобайт обоє платять за кілобайт.</translation>
+    </message>
+    <message>
+        <source>total at least</source>
+        <translation>всього щонайменше</translation>
+    </message>
+    <message>
+        <source>Paying only the minimum fee is just fine as long as there is less transaction volume than space in the blocks. But be aware that this can end up in a never confirming transaction once there is more demand for bitcoin transactions than the network can process.</source>
+        <translation>Оплата тільки мінімальних зборів є прийнятною до тих пір, як обсяг транзакцій там є меншим аніж простору в блоках. Але майте на увазі, що це може анулювати транзакцію, якщо попит на Bitcoin транзакції стане значно більшим, ніж мережа зможе обробити.</translation>
+    </message>
+    <message>
+        <source>(read the tooltip)</source>
+        <translation>(читати підказки)</translation>
+    </message>
+    <message>
+        <source>Recommended:</source>
+        <translation>Рекомендовано:</translation>
+    </message>
+    <message>
+        <source>Custom:</source>
+        <translation>Змінено:</translation>
+    </message>
+    <message>
+        <source>(Smart fee not initialized yet. This usually takes a few blocks...)</source>
+        <translation>(Розумна оплата ще не ініціалізована. Це звичайно займає кілька блоків...)</translation>
+    </message>
+    <message>
+        <source>Confirmation time:</source>
+        <translation>Час підтвердження:</translation>
+    </message>
+    <message>
+        <source>normal</source>
+        <translation>звичайний</translation>
+    </message>
+    <message>
+        <source>fast</source>
+        <translation>швидкий</translation>
+    </message>
+    <message>
+        <source>Send as zero-fee transaction if possible</source>
+        <translation>Надіслати як нульовий плата за передачу, якщо це можливо</translation>
+    </message>
+    <message>
+        <source>(confirmation may take longer)</source>
+        <translation>(підтвердження може зайняти більше часу)</translation>
+    </message>
+    <message>
         <source>Send to multiple recipients at once</source>
         <translation>Відправити на декілька адрес</translation>
     </message>
@@ -1929,6 +2021,18 @@ Address: %4
         <translation>Транзакцію відхилено! Це може статись, якщо декілька монет з вашого гаманця вже використані, наприклад, якщо ви використовуєте одну копію гаманця (wallet.dat), а монети були використані з іншої копії, але не позначені як використані в цій.</translation>
     </message>
     <message>
+        <source>A fee higher than %1 is considered an insanely high fee.</source>
+        <translation>Плата вища, ніж %1 вважається шалено високою.</translation>
+    </message>
+    <message>
+        <source>Pay only the minimum fee of %1</source>
+        <translation>Платити тільки мінімальний збір у розмірі %1</translation>
+    </message>
+    <message>
+        <source>Estimated to begin confirmation within %1 block(s).</source>
+        <translation>Розрахунковий початок підтвердження протягом %1 блоку(ів).</translation>
+    </message>
+    <message>
         <source>Warning: Invalid Bitcoin address</source>
         <translation>Увага: Неправильна Bitcoin-адреса</translation>
     </message>
@@ -2735,6 +2839,10 @@ rpcpassword=%s
         <translation>Видалити всі транзакції гаманця та відновити ті, що будуть знайдені під час запуску за допомогою -rescan</translation>
     </message>
     <message>
+        <source>Distributed under the MIT software license, see the accompanying file COPYING or &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</source>
+        <translation>Поширюється за ліцензією MIT, додаткова інформація міститься у файлі COPYING та за адресою &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</translation>
+    </message>
+    <message>
         <source>Enter regression test mode, which uses a special chain in which blocks can be solved instantly.</source>
         <translation>Ввійти в режим регресивного тестування, що використовує спеціальний ланцюг з миттєвим знаходженням блоків.</translation>
     </message>
@@ -2987,6 +3095,10 @@ rpcpassword=%s
         <translation>Комісії (в BTC/КБ), що менші за вказану, вважатимуться нульовими (для створення транзакції) (типово: %s)</translation>
     </message>
     <message>
+        <source>Maximum size of data in data carrier transactions we relay and mine (default: %u)</source>
+        <translation>Максимальний розмір даних в транзакціях носіїв даних, що ми передаємо і добуваємо (за замовчуванням: %u)</translation>
+    </message>
+    <message>
         <source>Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)</source>
         <translation>Дізнаватися адреси учасників через DNS при замалій кількості відомих адрес (типово: 1 за відсутності -connect)</translation>
     </message>
@@ -2995,6 +3107,10 @@ rpcpassword=%s
         <translation>Встановити максимальний розмір транзакцій з високим пріоритетом та низькою комісією (в байтах) (типово: %d)</translation>
     </message>
     <message>
+        <source>Set the number of threads for coin generation if enabled (-1 = all cores, default: %d)</source>
+        <translation>Встановити кількість потоків для генерації монет (-1 = кількості ядер, типово: %d)</translation>
+    </message>
+    <message>
         <source>This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit &lt;https://www.openssl.org/&gt; and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard.</source>
         <translation>Цей продукт включає в себе програмне забезпечення, розроблене в рамках проекту OpenSSL &lt;https://www.openssl.org/&gt;, криптографічне програмне забезпечення, написане Еріком Янгом, та функції для роботи з UPnP, написані Томасом Бернардом.</translation>
     </message>
@@ -3099,6 +3215,10 @@ rpcpassword=%s
         <translation>Відсилати налагоджувальну інформацію на консоль, а не у файл debug.log</translation>
     </message>
     <message>
+        <source>Send transactions as zero-fee transactions if possible (default: %u)</source>
+        <translation>Встановити операцію надсилання, як неоплатну операцію, якщо це можливо (за замовчуванням: %u)</translation>
+    </message>
+    <message>
         <source>Show all debugging options (usage: --help -help-debug)</source>
         <translation>Показати всі налагоджувальні параметри (використання: --help -help-debug)</translation>
     </message>
diff --git a/src/qt/locale/bitcoin_zh_TW.ts b/src/qt/locale/bitcoin_zh_TW.ts
index b70596d83a..56d598fc64 100644
--- a/src/qt/locale/bitcoin_zh_TW.ts
+++ b/src/qt/locale/bitcoin_zh_TW.ts
@@ -478,6 +478,10 @@
         <source>Up to date</source>
         <translation>最新狀態</translation>
     </message>
+    <message numerus="yes">
+        <source>Processed %n blocks of transaction history.</source>
+        <translation><numerusform>已經處理了 %n 個區塊的交易紀錄。</numerusform></translation>
+    </message>
     <message>
         <source>Catching up...</source>
         <translation>正在趕進度...</translation>
@@ -521,6 +525,10 @@ Address: %4
 <context>
     <name>CoinControlDialog</name>
     <message>
+        <source>Coin Selection</source>
+        <translation>選擇錢幣</translation>
+    </message>
+    <message>
         <source>Quantity:</source>
         <translation>數目:</translation>
     </message>
@@ -1031,6 +1039,14 @@ Address: %4
         <translation>用 &amp;UPnP 設定通訊埠對應</translation>
     </message>
     <message>
+        <source>Connect to the Bitcoin network through a SOCKS5 proxy.</source>
+        <translation>透過 SOCKS5 代理伺服器來連線到位元幣網路。</translation>
+    </message>
+    <message>
+        <source>&amp;Connect through SOCKS5 proxy (default proxy):</source>
+        <translation>透過 SOCKS5 代理伺服器連線(預設代理伺服器):</translation>
+    </message>
+    <message>
         <source>Proxy &amp;IP:</source>
         <translation>代理位址:</translation>
     </message>
@@ -1821,6 +1837,38 @@ Address: %4
         <translation>自定找零位址</translation>
     </message>
     <message>
+        <source>Transaction Fee:</source>
+        <translation>交易手續費:</translation>
+    </message>
+    <message>
+        <source>Choose...</source>
+        <translation>選擇...</translation>
+    </message>
+    <message>
+        <source>collapse fee-settings</source>
+        <translation>展開手續費設定</translation>
+    </message>
+    <message>
+        <source>Minimize</source>
+        <translation>最小化</translation>
+    </message>
+    <message>
+        <source>per kilobyte</source>
+        <translation>每千位元組</translation>
+    </message>
+    <message>
+        <source>(read the tooltip)</source>
+        <translation>(請看提示)</translation>
+    </message>
+    <message>
+        <source>Confirmation time:</source>
+        <translation>確認時間:</translation>
+    </message>
+    <message>
+        <source>Send as zero-fee transaction if possible</source>
+        <translation>盡可能送不用付手續費的交易</translation>
+    </message>
+    <message>
         <source>Send to multiple recipients at once</source>
         <translation>一次付給多個收款人</translation>
     </message>
@@ -2732,6 +2780,10 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
         <translation>清掉錢包裡的所有交易，並且在下次啟動時，使用 -rescan 來從區塊鏈中復原回來。</translation>
     </message>
     <message>
+        <source>Distributed under the MIT software license, see the accompanying file COPYING or &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</source>
+        <translation>這套軟體是依據 MIT 軟體授權條款散布，詳情請見附帶的 COPYING 檔案，或是以下網站:  &lt;http://www.opensource.org/licenses/mit-license.php&gt;.</translation>
+    </message>
+    <message>
         <source>Enter regression test mode, which uses a special chain in which blocks can be solved instantly.</source>
         <translation>進入回歸測試模式，使用可以立即解出區塊的特殊區塊鏈。</translation>
     </message>
@@ -2784,6 +2836,10 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
         <translation>警告: 錢包檔 wallet.dat 壞掉，但資料被拯救回來了！原來的 wallet.dat 會改儲存在 %s, 檔名是 wallet.{timestamp}.bak. 如果餘額或交易資料有誤，你應該要用備份資料復原回來。</translation>
     </message>
     <message>
+        <source>Whitelist peers connecting from the given netmask or IP address. Can be specified multiple times.</source>
+        <translation>把來自指定網域或位址的節點放進白名單。這個選項可以設定多次。</translation>
+    </message>
+    <message>
         <source>(default: 1)</source>
         <translation>(預設值: 1)</translation>
     </message>
@@ -2821,7 +2877,7 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
     </message>
     <message>
         <source>Do not load the wallet and disable wallet RPC calls</source>
-        <translation>不要載入錢包，並且拿掉錢包相關的 RPC 功能呼叫。</translation>
+        <translation>不要載入錢包，並且拿掉錢包相關的 RPC 功能請求。</translation>
     </message>
     <message>
         <source>Do you want to rebuild the block database now?</source>
@@ -2948,6 +3004,10 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
         <translation>沒辦法鎖定資料目錄 %s。位元幣核心可能已經在執行了。</translation>
     </message>
     <message>
+        <source>Continuously rate-limit free transactions to &lt;n&gt;*1000 bytes per minute (default:%u)</source>
+        <translation>對沒付手續費的交易持續限制每分鐘內最多只能有 &lt;n&gt;*1000 個位元組(預設值: %u)</translation>
+    </message>
+    <message>
         <source>Create new files with system default permissions, instead of umask 077 (only effective with disabled wallet functionality)</source>
         <translation>用系統預設權限來造出新的檔案，而不是用使用者權限罩遮(umask)值 077 (只有在關掉錢包功能時才有作用)。</translation>
     </message>
@@ -2972,6 +3032,10 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
         <translation>當製造交易時，如果每千位元組(Kb)的手續費比這個值低，就視為沒付手續費 (預設值: %s)</translation>
     </message>
     <message>
+        <source>Maximum size of data in data carrier transactions we relay and mine (default: %u)</source>
+        <translation>轉發和開採時，對只帶資料的交易的大小上限(預設值: %u)</translation>
+    </message>
+    <message>
         <source>Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless -connect)</source>
         <translation>是否允許在節點位址數目不足時，使用域名查詢來搜尋節點 (預設值: 當沒用 -connect 時為 1)</translation>
     </message>
@@ -2980,6 +3044,10 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
         <translation>設定高優先度或低手續費的交易資料大小上限成多少位元組(預設值: %d)</translation>
     </message>
     <message>
+        <source>Set the number of threads for coin generation if enabled (-1 = all cores, default: %d)</source>
+        <translation>設定產生錢幣的執行緒數目(-1 表示處理器核心數，預設值: %d)</translation>
+    </message>
+    <message>
         <source>This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit &lt;https://www.openssl.org/&gt; and cryptographic software written by Eric Young and UPnP software written by Thomas Bernard.</source>
         <translation>此產品也包含了由 OpenSSL Project 所開發的 OpenSSL Toolkit 軟體 &lt;https://www.openssl.org/&gt;, 和由 Eric Young 撰寫的加解密軟體，以及由 Thomas Bernard 所撰寫的 UPnP 軟體。</translation>
     </message>
@@ -3084,6 +3152,10 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
         <translation>在終端機顯示追蹤或除錯資訊，而不是寫到檔案 debug.log 中</translation>
     </message>
     <message>
+        <source>Send transactions as zero-fee transactions if possible (default: %u)</source>
+        <translation>盡可能送出不用付手續費的交易(預設值: %u)</translation>
+    </message>
+    <message>
         <source>Show all debugging options (usage: --help -help-debug)</source>
         <translation>顯示所有的除錯選項 (用法: --help --help-debug)</translation>
     </message>
@@ -3192,14 +3264,178 @@ alertnotify=echo %%s | mail -s "Bitcoin Alert" admin@foo.com</translation>
         <translation>載入檔案 wallet.dat 時發生錯誤: 錢包損毀了</translation>
     </message>
     <message>
+        <source>(1 = keep tx meta data e.g. account owner and payment request information, 2 = drop tx meta data)</source>
+        <translation>(1 表示保留交易描述資料，像是帳戶使用者和付款請求資訊；2 表示丟掉交易描述資料)</translation>
+    </message>
+    <message>
+        <source>Flush database activity from memory pool to disk log every &lt;n&gt; megabytes (default: %u)</source>
+        <translation>每當累積到 &lt;n&gt; 百萬位元組(MB)時，才將資料庫的變動從記憶體暫存池中寫進磁碟紀錄檔(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>How thorough the block verification of -checkblocks is (0-4, default: %u)</source>
+        <translation>使用 -checkblocks 檢查區塊的仔細程度(0 到 4，預設值: %u)</translation>
+    </message>
+    <message>
+        <source>If paytxfee is not set, include enough fee so transactions are confirmed on average within n blocks (default: %u)</source>
+        <translation>當沒有設定 paytxfee 時，自動包含可以讓交易能在平均 n 個區塊內確認的手續費(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Log transaction priority and fee per kB when mining blocks (default: %u)</source>
+        <translation>開採區塊的時候，紀錄交易的優先度以及每千位元組(kB)的手續費(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Maintain a full transaction index, used by the getrawtransaction rpc call (default: %u)</source>
+        <translation>維護全部交易的索引，用在 getrawtransaction 這個 RPC 請求(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Number of seconds to keep misbehaving peers from reconnecting (default: %u)</source>
+        <translation>避免與亂搞的節點連線的秒數(預設: %u)</translation>
+    </message>
+    <message>
+        <source>Output debugging information (default: %u, supplying &lt;category&gt; is optional)</source>
+        <translation>輸出除錯資訊(預設值: %u, 不一定要指定 &lt;category&gt;)</translation>
+    </message>
+    <message>
+        <source>Use separate SOCKS5 proxy to reach peers via Tor hidden services (default: %s)</source>
+        <translation>使用另外的 SOCK5 代理伺服器，來透過 Tor 隱藏服務跟節點聯繫(預設值: %s)</translation>
+    </message>
+    <message>
+        <source>(default: %s)</source>
+        <translation>(預設值: %s)</translation>
+    </message>
+    <message>
+        <source>Acceptable ciphers (default: %s)</source>
+        <translation>可以接受的加密演算法(預設值: %s)</translation>
+    </message>
+    <message>
+        <source>Always query for peer addresses via DNS lookup (default: %u)</source>
+        <translation>是否一定要用域名查詢來搜尋節點(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Disable safemode, override a real safe mode event (default: %u)</source>
+        <translation>不進入安全模式，用在真的發生需要進入安全模式的事件時，強制不進入(預設值: %u)</translation>
+    </message>
+    <message>
         <source>Error loading wallet.dat</source>
         <translation>載入錢包檔 wallet.dat 時發生錯誤</translation>
     </message>
     <message>
+        <source>Force safe mode (default: %u)</source>
+        <translation>強制進入安全模式(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Generate coins (default: %u)</source>
+        <translation>生產位元幣(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>How many blocks to check at startup (default: %u, 0 = all)</source>
+        <translation>啓動時檢查的區塊數(預設值: %u, 指定 0 表示全部)</translation>
+    </message>
+    <message>
+        <source>Include IP addresses in debug output (default: %u)</source>
+        <translation>在除錯輸出內容中包含網際網路位址(預設值: %u)</translation>
+    </message>
+    <message>
         <source>Invalid -proxy address: '%s'</source>
         <translation>無效的 -proxy 位址: '%s'</translation>
     </message>
     <message>
+        <source>Limit size of signature cache to &lt;n&gt; entries (default: %u)</source>
+        <translation>限制簽章快取大小為 &lt;n&gt; 筆(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Listen for JSON-RPC connections on &lt;port&gt; (default: %u or testnet: %u)</source>
+        <translation>在通訊埠 &lt;port&gt; 聽候 JSON-RPC 連線(預設值: %u, 或若為測試網路: %u)</translation>
+    </message>
+    <message>
+        <source>Listen for connections on &lt;port&gt; (default: %u or testnet: %u)</source>
+        <translation>在通訊埠 &lt;port&gt; 聽候連線(預設值: %u, 或若為測試網路: %u)</translation>
+    </message>
+    <message>
+        <source>Maintain at most &lt;n&gt; connections to peers (default: %u)</source>
+        <translation>維持與節點連線數的上限為 &lt;n&gt; 個(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Maximum per-connection receive buffer, &lt;n&gt;*1000 bytes (default: %u)</source>
+        <translation>每個連線的接收緩衝區大小上限為 &lt;n&gt;*1000 個位元組(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Maximum per-connection send buffer, &lt;n&gt;*1000 bytes (default: %u)</source>
+        <translation>每個連線的傳送緩衝區大小上限為 &lt;n&gt;*1000 個位元組(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Only accept block chain matching built-in checkpoints (default: %u)</source>
+        <translation>只接受與內建的檢查段點吻合的區塊鎖鏈(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Prepend debug output with timestamp (default: %u)</source>
+        <translation>在除錯輸出內容前附加時間(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Print block tree on startup (default: %u)</source>
+        <translation>啟動時輸出區塊樹(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Relay and mine data carrier transactions (default: %u)</source>
+        <translation>允許轉發和開採只帶資料的交易(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Relay non-P2SH multisig (default: %u)</source>
+        <translation>允許轉發非 P2SH 的多簽章交易(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Run a thread to flush wallet periodically (default: %u)</source>
+        <translation>啟用定期將變動寫入錢包檔的執行緒(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Server certificate file (default: %s)</source>
+        <translation>伺服器憑證檔(預設值: %s)</translation>
+    </message>
+    <message>
+        <source>Server private key (default: %s)</source>
+        <translation>伺服器密鑰檔(預設值: %s)</translation>
+    </message>
+    <message>
+        <source>Set key pool size to &lt;n&gt; (default: %u)</source>
+        <translation>設定密鑰池大小為 &lt;n&gt; (預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Set minimum block size in bytes (default: %u)</source>
+        <translation>設定區塊大小下限為多少位元組(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Set the number of threads to service RPC calls (default: %d)</source>
+        <translation>設定處理 RPC 服務請求的執行緒數目(預設值: %d)</translation>
+    </message>
+    <message>
+        <source>Sets the DB_PRIVATE flag in the wallet db environment (default: %u)</source>
+        <translation>在錢包資料庫環境變數設定 DB_PRIVATE 旗標(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Specify configuration file (default: %s)</source>
+        <translation>指定設定檔(預設值: %s)</translation>
+    </message>
+    <message>
+        <source>Specify connection timeout in milliseconds (minimum: 1, default: %d)</source>
+        <translation>指定連線在幾毫秒後逾時 (最少值: 1, 預設值: %d)</translation>
+    </message>
+    <message>
+        <source>Specify pid file (default: %s)</source>
+        <translation>指定行程識別碼檔案(預設值: %s)</translation>
+    </message>
+    <message>
+        <source>Spend unconfirmed change when sending transactions (default: %u)</source>
+        <translation>傳送交易時可以花還沒確認的零錢(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Stop running after importing blocks from disk (default: %u)</source>
+        <translation>從磁碟匯入區塊資料後停止執行(預設值: %u)</translation>
+    </message>
+    <message>
+        <source>Threshold for disconnecting misbehaving peers (default: %u)</source>
+        <translation>與亂搞的節點斷線的臨界值 (預設: %u)</translation>
+    </message>
+    <message>
         <source>Unknown network specified in -onlynet: '%s'</source>
         <translation>在 -onlynet 指定了不明的網路別: '%s'</translation>
     </message>
diff --git a/src/qt/macdockiconhandler.h b/src/qt/macdockiconhandler.h
index 1ffab75c9a..1217bd8e88 100644
--- a/src/qt/macdockiconhandler.h
+++ b/src/qt/macdockiconhandler.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_MACDOCKICONHANDLER_H
diff --git a/src/qt/macdockiconhandler.mm b/src/qt/macdockiconhandler.mm
index a2ff148d9d..e7b58b9cc0 100644
--- a/src/qt/macdockiconhandler.mm
+++ b/src/qt/macdockiconhandler.mm
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "macdockiconhandler.h"
diff --git a/src/qt/macnotificationhandler.h b/src/qt/macnotificationhandler.h
index f7a4cb7f5b..bd66b96b21 100644
--- a/src/qt/macnotificationhandler.h
+++ b/src/qt/macnotificationhandler.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_MACNOTIFICATIONHANDLER_H
diff --git a/src/qt/macnotificationhandler.mm b/src/qt/macnotificationhandler.mm
index aa50a0d9fb..dd3f622818 100644
--- a/src/qt/macnotificationhandler.mm
+++ b/src/qt/macnotificationhandler.mm
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "macnotificationhandler.h"
diff --git a/src/qt/networkstyle.cpp b/src/qt/networkstyle.cpp
index 62c44703f4..e28f903b2e 100644
--- a/src/qt/networkstyle.cpp
+++ b/src/qt/networkstyle.cpp
@@ -1,33 +1,83 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "networkstyle.h"
 
 #include "guiconstants.h"
+#include "scicon.h"
 
 #include <QApplication>
 
 static const struct {
     const char *networkId;
     const char *appName;
-    const char *appIcon;
+    const int iconColorHueShift;
+    const int iconColorSaturationReduction;
     const char *titleAddText;
-    const char *splashImage;
 } network_styles[] = {
-    {"main", QAPP_APP_NAME_DEFAULT, ":/icons/bitcoin", "", ":/images/splash"},
-    {"test", QAPP_APP_NAME_TESTNET, ":/icons/bitcoin_testnet", QT_TRANSLATE_NOOP("SplashScreen", "[testnet]"), ":/images/splash_testnet"},
-    {"regtest", QAPP_APP_NAME_TESTNET, ":/icons/bitcoin_testnet", "[regtest]", ":/images/splash_testnet"}
+    {"main", QAPP_APP_NAME_DEFAULT, 0, 0, ""},
+    {"test", QAPP_APP_NAME_TESTNET, 70, 30, QT_TRANSLATE_NOOP("SplashScreen", "[testnet]")},
+    {"regtest", QAPP_APP_NAME_TESTNET, 160, 30, "[regtest]"}
 };
 static const unsigned network_styles_count = sizeof(network_styles)/sizeof(*network_styles);
 
 // titleAddText needs to be const char* for tr()
-NetworkStyle::NetworkStyle(const QString &appName, const QString &appIcon, const char *titleAddText, const QString &splashImage):
+NetworkStyle::NetworkStyle(const QString &appName, const int iconColorHueShift, const int iconColorSaturationReduction, const char *titleAddText):
     appName(appName),
-    appIcon(appIcon),
-    titleAddText(qApp->translate("SplashScreen", titleAddText)),
-    splashImage(splashImage)
+    titleAddText(qApp->translate("SplashScreen", titleAddText))
 {
+    // load pixmap
+    QPixmap pixmap(":/icons/bitcoin");
+
+    if(iconColorHueShift != 0 && iconColorSaturationReduction != 0)
+    {
+        // generate QImage from QPixmap
+        QImage img = pixmap.toImage();
+
+        int h,s,l,a;
+
+        // traverse though lines
+        for(int y=0;y<img.height();y++)
+        {
+            QRgb *scL = reinterpret_cast< QRgb *>( img.scanLine( y ) );
+
+            // loop through pixels
+            for(int x=0;x<img.width();x++)
+            {
+                // preserve alpha because QColor::getHsl doesen't return the alpha value
+                a = qAlpha(scL[x]);
+                QColor col(scL[x]);
+
+                // get hue value
+                col.getHsl(&h,&s,&l);
+
+                // rotate color on RGB color circle
+                // 70° should end up with the typical "testnet" green
+                h+=iconColorHueShift;
+
+                // change saturation value
+                if(s>iconColorSaturationReduction)
+                {
+                    s -= iconColorSaturationReduction;
+                }
+                col.setHsl(h,s,l,a);
+
+                // set the pixel
+                scL[x] = col.rgba();
+            }
+        }
+
+        //convert back to QPixmap
+#if QT_VERSION >= 0x040700
+        pixmap.convertFromImage(img);
+#else
+        pixmap = QPixmap::fromImage(img);
+#endif
+    }
+
+    appIcon             = QIcon(pixmap);
+    trayAndWindowIcon   = QIcon(pixmap.scaled(QSize(256,256)));
 }
 
 const NetworkStyle *NetworkStyle::instantiate(const QString &networkId)
@@ -38,9 +88,9 @@ const NetworkStyle *NetworkStyle::instantiate(const QString &networkId)
         {
             return new NetworkStyle(
                     network_styles[x].appName,
-                    network_styles[x].appIcon,
-                    network_styles[x].titleAddText,
-                    network_styles[x].splashImage);
+                    network_styles[x].iconColorHueShift,
+                    network_styles[x].iconColorSaturationReduction,
+                    network_styles[x].titleAddText);
         }
     }
     return 0;
diff --git a/src/qt/networkstyle.h b/src/qt/networkstyle.h
index e49b86c950..b78a9f5948 100644
--- a/src/qt/networkstyle.h
+++ b/src/qt/networkstyle.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -18,16 +18,16 @@ public:
 
     const QString &getAppName() const { return appName; }
     const QIcon &getAppIcon() const { return appIcon; }
+    const QIcon &getTrayAndWindowIcon() const { return trayAndWindowIcon; }
     const QString &getTitleAddText() const { return titleAddText; }
-    const QPixmap &getSplashImage() const { return splashImage; }
 
 private:
-    NetworkStyle(const QString &appName, const QString &appIcon, const char *titleAddText, const QString &splashImage);
+    NetworkStyle(const QString &appName, const int iconColorHueShift, const int iconColorSaturationReduction, const char *titleAddText);
 
     QString appName;
     QIcon appIcon;
+    QIcon trayAndWindowIcon;
     QString titleAddText;
-    QPixmap splashImage;
 };
 
 #endif // BITCOIN_QT_NETWORKSTYLE_H
diff --git a/src/qt/notificator.cpp b/src/qt/notificator.cpp
index 3d588cd317..5a564248ec 100644
--- a/src/qt/notificator.cpp
+++ b/src/qt/notificator.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "notificator.h"
diff --git a/src/qt/notificator.h b/src/qt/notificator.h
index 61c27e7ff8..182e948c7d 100644
--- a/src/qt/notificator.h
+++ b/src/qt/notificator.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_NOTIFICATOR_H
diff --git a/src/qt/openuridialog.cpp b/src/qt/openuridialog.cpp
index 06189aeaf3..1c843aecb1 100644
--- a/src/qt/openuridialog.cpp
+++ b/src/qt/openuridialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "openuridialog.h"
diff --git a/src/qt/openuridialog.h b/src/qt/openuridialog.h
index f04ec71b32..d5c434ba9c 100644
--- a/src/qt/openuridialog.h
+++ b/src/qt/openuridialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_OPENURIDIALOG_H
diff --git a/src/qt/optionsdialog.cpp b/src/qt/optionsdialog.cpp
index 069080219e..a0f3993e69 100644
--- a/src/qt/optionsdialog.cpp
+++ b/src/qt/optionsdialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
diff --git a/src/qt/optionsdialog.h b/src/qt/optionsdialog.h
index 511719f53c..f4e5157595 100644
--- a/src/qt/optionsdialog.h
+++ b/src/qt/optionsdialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_OPTIONSDIALOG_H
diff --git a/src/qt/optionsmodel.cpp b/src/qt/optionsmodel.cpp
index 7054509fe6..7d2dbd96de 100644
--- a/src/qt/optionsmodel.cpp
+++ b/src/qt/optionsmodel.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
diff --git a/src/qt/optionsmodel.h b/src/qt/optionsmodel.h
index 84fd49a7b8..bf892768ed 100644
--- a/src/qt/optionsmodel.h
+++ b/src/qt/optionsmodel.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_OPTIONSMODEL_H
diff --git a/src/qt/overviewpage.cpp b/src/qt/overviewpage.cpp
index 669d5474fd..4fa15db9c6 100644
--- a/src/qt/overviewpage.cpp
+++ b/src/qt/overviewpage.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "overviewpage.h"
@@ -10,6 +10,7 @@
 #include "guiconstants.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
+#include "scicon.h"
 #include "transactionfilterproxy.h"
 #include "transactiontablemodel.h"
 #include "walletmodel.h"
@@ -34,7 +35,7 @@ public:
     {
         painter->save();
 
-        QIcon icon = qvariant_cast<QIcon>(index.data(Qt::DecorationRole));
+        QIcon icon = qvariant_cast<QIcon>(index.data(TransactionTableModel::RawDecorationRole));
         QRect mainRect = option.rect;
         QRect decorationRect(mainRect.topLeft(), QSize(DECORATION_SIZE, DECORATION_SIZE));
         int xspace = DECORATION_SIZE + 8;
@@ -42,6 +43,7 @@ public:
         int halfheight = (mainRect.height() - 2*ypad)/2;
         QRect amountRect(mainRect.left() + xspace, mainRect.top()+ypad, mainRect.width() - xspace, halfheight);
         QRect addressRect(mainRect.left() + xspace, mainRect.top()+ypad+halfheight, mainRect.width() - xspace, halfheight);
+        icon = SingleColorIcon(icon, SingleColor());
         icon.paint(painter, decorationRect);
 
         QDateTime date = index.data(TransactionTableModel::DateRole).toDateTime();
diff --git a/src/qt/overviewpage.h b/src/qt/overviewpage.h
index e889eae8be..64cb1dc4e0 100644
--- a/src/qt/overviewpage.h
+++ b/src/qt/overviewpage.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_OVERVIEWPAGE_H
diff --git a/src/qt/paymentrequestplus.cpp b/src/qt/paymentrequestplus.cpp
index 7aefffe24a..4c1e898020 100644
--- a/src/qt/paymentrequestplus.cpp
+++ b/src/qt/paymentrequestplus.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 //
@@ -9,6 +9,8 @@
 
 #include "paymentrequestplus.h"
 
+#include "util.h"
+
 #include <stdexcept>
 
 #include <openssl/x509.h>
@@ -30,18 +32,18 @@ bool PaymentRequestPlus::parse(const QByteArray& data)
 {
     bool parseOK = paymentRequest.ParseFromArray(data.data(), data.size());
     if (!parseOK) {
-        qWarning() << "PaymentRequestPlus::parse : Error parsing payment request";
+        qWarning() << "PaymentRequestPlus::parse: Error parsing payment request";
         return false;
     }
     if (paymentRequest.payment_details_version() > 1) {
-        qWarning() << "PaymentRequestPlus::parse : Received up-version payment details, version=" << paymentRequest.payment_details_version();
+        qWarning() << "PaymentRequestPlus::parse: Received up-version payment details, version=" << paymentRequest.payment_details_version();
         return false;
     }
 
     parseOK = details.ParseFromString(paymentRequest.serialized_payment_details());
     if (!parseOK)
     {
-        qWarning() << "PaymentRequestPlus::parse : Error parsing payment details";
+        qWarning() << "PaymentRequestPlus::parse: Error parsing payment details";
         paymentRequest.Clear();
         return false;
     }
@@ -81,17 +83,17 @@ bool PaymentRequestPlus::getMerchant(X509_STORE* certStore, QString& merchant) c
         digestAlgorithm = EVP_sha1();
     }
     else if (paymentRequest.pki_type() == "none") {
-        qWarning() << "PaymentRequestPlus::getMerchant : Payment request: pki_type == none";
+        qWarning() << "PaymentRequestPlus::getMerchant: Payment request: pki_type == none";
         return false;
     }
     else {
-        qWarning() << "PaymentRequestPlus::getMerchant : Payment request: unknown pki_type " << QString::fromStdString(paymentRequest.pki_type());
+        qWarning() << "PaymentRequestPlus::getMerchant: Payment request: unknown pki_type " << QString::fromStdString(paymentRequest.pki_type());
         return false;
     }
 
     payments::X509Certificates certChain;
     if (!certChain.ParseFromString(paymentRequest.pki_data())) {
-        qWarning() << "PaymentRequestPlus::getMerchant : Payment request: error parsing pki_data";
+        qWarning() << "PaymentRequestPlus::getMerchant: Payment request: error parsing pki_data";
         return false;
     }
 
@@ -101,12 +103,12 @@ bool PaymentRequestPlus::getMerchant(X509_STORE* certStore, QString& merchant) c
         QByteArray certData(certChain.certificate(i).data(), certChain.certificate(i).size());
         QSslCertificate qCert(certData, QSsl::Der);
         if (currentTime < qCert.effectiveDate() || currentTime > qCert.expiryDate()) {
-            qWarning() << "PaymentRequestPlus::getMerchant : Payment request: certificate expired or not yet active: " << qCert;
+            qWarning() << "PaymentRequestPlus::getMerchant: Payment request: certificate expired or not yet active: " << qCert;
             return false;
         }
 #if QT_VERSION >= 0x050000
         if (qCert.isBlacklisted()) {
-            qWarning() << "PaymentRequestPlus::getMerchant : Payment request: certificate blacklisted: " << qCert;
+            qWarning() << "PaymentRequestPlus::getMerchant: Payment request: certificate blacklisted: " << qCert;
             return false;
         }
 #endif
@@ -116,7 +118,7 @@ bool PaymentRequestPlus::getMerchant(X509_STORE* certStore, QString& merchant) c
             certs.push_back(cert);
     }
     if (certs.empty()) {
-        qWarning() << "PaymentRequestPlus::getMerchant : Payment request: empty certificate chain";
+        qWarning() << "PaymentRequestPlus::getMerchant: Payment request: empty certificate chain";
         return false;
     }
 
@@ -132,7 +134,7 @@ bool PaymentRequestPlus::getMerchant(X509_STORE* certStore, QString& merchant) c
     // load the signing cert into it and verify.
     X509_STORE_CTX *store_ctx = X509_STORE_CTX_new();
     if (!store_ctx) {
-        qWarning() << "PaymentRequestPlus::getMerchant : Payment request: error creating X509_STORE_CTX";
+        qWarning() << "PaymentRequestPlus::getMerchant: Payment request: error creating X509_STORE_CTX";
         return false;
     }
 
@@ -150,7 +152,13 @@ bool PaymentRequestPlus::getMerchant(X509_STORE* certStore, QString& merchant) c
         int result = X509_verify_cert(store_ctx);
         if (result != 1) {
             int error = X509_STORE_CTX_get_error(store_ctx);
-            throw SSLVerifyError(X509_verify_cert_error_string(error));
+            // For testing payment requests, we allow self signed root certs!
+            // This option is just shown in the UI options, if -help-debug is enabled.
+            if (!(error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT && GetBoolArg("-allowselfsignedrootcertificates", false))) {
+                throw SSLVerifyError(X509_verify_cert_error_string(error));
+            } else {
+               qDebug() << "PaymentRequestPlus::getMerchant: Allowing self signed root certificate, because -allowselfsignedrootcertificates is true.";
+            }
         }
         X509_NAME *certname = X509_get_subject_name(signing_cert);
 
@@ -181,10 +189,9 @@ bool PaymentRequestPlus::getMerchant(X509_STORE* certStore, QString& merchant) c
         }
         // TODO: detect EV certificates and set merchant = business name instead of unfriendly NID_commonName ?
     }
-    catch (SSLVerifyError& err)
-    {
+    catch (const SSLVerifyError& err) {
         fResult = false;
-        qWarning() << "PaymentRequestPlus::getMerchant : SSL error: " << err.what();
+        qWarning() << "PaymentRequestPlus::getMerchant: SSL error: " << err.what();
     }
 
     if (website)
diff --git a/src/qt/paymentrequestplus.h b/src/qt/paymentrequestplus.h
index 91c704c520..fbc3a09265 100644
--- a/src/qt/paymentrequestplus.h
+++ b/src/qt/paymentrequestplus.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_PAYMENTREQUESTPLUS_H
diff --git a/src/qt/paymentserver.cpp b/src/qt/paymentserver.cpp
index 707de55290..a00916bf7f 100644
--- a/src/qt/paymentserver.cpp
+++ b/src/qt/paymentserver.cpp
@@ -1,11 +1,10 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "paymentserver.h"
 
 #include "bitcoinunits.h"
-#include "guiconstants.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
 
@@ -19,6 +18,7 @@
 
 #include <openssl/x509.h>
 #include <openssl/x509_vfy.h>
+
 #include <QApplication>
 #include <QByteArray>
 #include <QDataStream>
@@ -47,13 +47,18 @@
 #endif
 
 using namespace std;
-using namespace boost;
 
 const int BITCOIN_IPC_CONNECT_TIMEOUT = 1000; // milliseconds
 const QString BITCOIN_IPC_PREFIX("bitcoin:");
-const char* BITCOIN_REQUEST_MIMETYPE = "application/bitcoin-paymentrequest";
-const char* BITCOIN_PAYMENTACK_MIMETYPE = "application/bitcoin-paymentack";
-const char* BITCOIN_PAYMENTACK_CONTENTTYPE = "application/bitcoin-payment";
+// BIP70 payment protocol messages
+const char* BIP70_MESSAGE_PAYMENTACK = "PaymentACK";
+const char* BIP70_MESSAGE_PAYMENTREQUEST = "PaymentRequest";
+// BIP71 payment protocol media types
+const char* BIP71_MIMETYPE_PAYMENT = "application/bitcoin-payment";
+const char* BIP71_MIMETYPE_PAYMENTACK = "application/bitcoin-paymentack";
+const char* BIP71_MIMETYPE_PAYMENTREQUEST = "application/bitcoin-paymentrequest";
+// BIP70 max payment request size in bytes (DoS protection)
+const qint64 BIP70_MAX_PAYMENTREQUEST_SIZE = 50000;
 
 X509_STORE* PaymentServer::certStore = NULL;
 void PaymentServer::freeCertStore()
@@ -92,7 +97,7 @@ static QList<QString> savedPaymentRequests;
 
 static void ReportInvalidCertificate(const QSslCertificate& cert)
 {
-    qDebug() << "ReportInvalidCertificate : Payment server found an invalid certificate: " << cert.subjectInfo(QSslCertificate::CommonName);
+    qDebug() << "ReportInvalidCertificate: Payment server found an invalid certificate: " << cert.subjectInfo(QSslCertificate::CommonName);
 }
 
 //
@@ -119,19 +124,22 @@ void PaymentServer::LoadRootCAs(X509_STORE* _store)
     // and get 'I don't like X.509 certificates, don't trust anybody' behavior:
     QString certFile = QString::fromStdString(GetArg("-rootcertificates", "-system-"));
 
-    if (certFile.isEmpty())
-        return; // Empty store
+    // Empty store
+    if (certFile.isEmpty()) {
+        qDebug() << QString("PaymentServer::%1: Payment request authentication via X.509 certificates disabled.").arg(__func__);
+        return;
+    }
 
     QList<QSslCertificate> certList;
 
-    if (certFile != "-system-")
-    {
+    if (certFile != "-system-") {
+            qDebug() << QString("PaymentServer::%1: Using \"%2\" as trusted root certificate.").arg(__func__).arg(certFile);
+
         certList = QSslCertificate::fromPath(certFile);
         // Use those certificates when fetching payment requests, too:
         QSslSocket::setDefaultCaCertificates(certList);
-    }
-    else
-        certList = QSslSocket::systemCaCertificates ();
+    } else
+        certList = QSslSocket::systemCaCertificates();
 
     int nRootCerts = 0;
     const QDateTime currentTime = QDateTime::currentDateTime();
@@ -163,7 +171,7 @@ void PaymentServer::LoadRootCAs(X509_STORE* _store)
             continue;
         }
     }
-    qWarning() << "PaymentServer::LoadRootCAs : Loaded " << nRootCerts << " root certificates";
+    qWarning() << "PaymentServer::LoadRootCAs: Loaded " << nRootCerts << " root certificates";
 
     // Project for another day:
     // Fetch certificate revocation lists, and add them to certStore.
@@ -184,7 +192,7 @@ void PaymentServer::LoadRootCAs(X509_STORE* _store)
 // Warning: ipcSendCommandLine() is called early in init,
 // so don't use "emit message()", but "QMessageBox::"!
 //
-bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
+void PaymentServer::ipcParseCommandLine(int argc, char* argv[])
 {
     for (int i = 1; i < argc; i++)
     {
@@ -192,6 +200,10 @@ bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
         if (arg.startsWith("-"))
             continue;
 
+        // If the bitcoin: URI contains a payment request, we are not able to detect the
+        // network as that would require fetching and parsing the payment request.
+        // That means clicking such an URI which contains a testnet payment request
+        // will start a mainnet instance and throw a "wrong network" error.
         if (arg.startsWith(BITCOIN_IPC_PREFIX, Qt::CaseInsensitive)) // bitcoin: URI
         {
             savedPaymentRequests.append(arg);
@@ -216,7 +228,7 @@ bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
             savedPaymentRequests.append(arg);
 
             PaymentRequestPlus request;
-            if (readPaymentRequest(arg, request))
+            if (readPaymentRequestFromFile(arg, request))
             {
                 if (request.getDetails().network() == "main")
                 {
@@ -232,10 +244,9 @@ bool PaymentServer::ipcParseCommandLine(int argc, char* argv[])
         {
             // Printing to debug.log is about the best we can do here, the
             // GUI hasn't started yet so we can't pop up a message box.
-            qWarning() << "PaymentServer::ipcSendCommandLine : Payment request file does not exist: " << arg;
+            qWarning() << "PaymentServer::ipcSendCommandLine: Payment request file does not exist: " << arg;
         }
     }
-    return true;
 }
 
 //
@@ -254,6 +265,7 @@ bool PaymentServer::ipcSendCommandLine()
         if (!socket->waitForConnected(BITCOIN_IPC_CONNECT_TIMEOUT))
         {
             delete socket;
+            socket = NULL;
             return false;
         }
 
@@ -262,12 +274,14 @@ bool PaymentServer::ipcSendCommandLine()
         out.setVersion(QDataStream::Qt_4_0);
         out << r;
         out.device()->seek(0);
+
         socket->write(block);
         socket->flush();
-
         socket->waitForBytesWritten(BITCOIN_IPC_CONNECT_TIMEOUT);
         socket->disconnectFromServer();
+
         delete socket;
+        socket = NULL;
         fResult = true;
     }
 
@@ -354,10 +368,10 @@ void PaymentServer::initNetManager()
     if (optionsModel->getProxySettings(proxy)) {
         netManager->setProxy(proxy);
 
-        qDebug() << "PaymentServer::initNetManager : Using SOCKS5 proxy" << proxy.hostName() << ":" << proxy.port();
+        qDebug() << "PaymentServer::initNetManager: Using SOCKS5 proxy" << proxy.hostName() << ":" << proxy.port();
     }
     else
-        qDebug() << "PaymentServer::initNetManager : No active proxy server found.";
+        qDebug() << "PaymentServer::initNetManager: No active proxy server found.";
 
     connect(netManager, SIGNAL(finished(QNetworkReply*)),
             this, SLOT(netRequestFinished(QNetworkReply*)));
@@ -401,12 +415,12 @@ void PaymentServer::handleURIOrFile(const QString& s)
 
             if (fetchUrl.isValid())
             {
-                qDebug() << "PaymentServer::handleURIOrFile : fetchRequest(" << fetchUrl << ")";
+                qDebug() << "PaymentServer::handleURIOrFile: fetchRequest(" << fetchUrl << ")";
                 fetchRequest(fetchUrl);
             }
             else
             {
-                qWarning() << "PaymentServer::handleURIOrFile : Invalid URL: " << fetchUrl;
+                qWarning() << "PaymentServer::handleURIOrFile: Invalid URL: " << fetchUrl;
                 emit message(tr("URI handling"),
                     tr("Payment request fetch URL is invalid: %1").arg(fetchUrl.toString()),
                     CClientUIInterface::ICON_WARNING);
@@ -440,7 +454,7 @@ void PaymentServer::handleURIOrFile(const QString& s)
     {
         PaymentRequestPlus request;
         SendCoinsRecipient recipient;
-        if (!readPaymentRequest(s, request))
+        if (!readPaymentRequestFromFile(s, request))
         {
             emit message(tr("Payment request file handling"),
                 tr("Payment request file cannot be read! This can be caused by an invalid payment request file."),
@@ -474,18 +488,25 @@ void PaymentServer::handleURIConnection()
     handleURIOrFile(msg);
 }
 
-bool PaymentServer::readPaymentRequest(const QString& filename, PaymentRequestPlus& request)
+//
+// Warning: readPaymentRequestFromFile() is used in ipcSendCommandLine()
+// so don't use "emit message()", but "QMessageBox::"!
+//
+bool PaymentServer::readPaymentRequestFromFile(const QString& filename, PaymentRequestPlus& request)
 {
     QFile f(filename);
-    if (!f.open(QIODevice::ReadOnly))
-    {
-        qWarning() << "PaymentServer::readPaymentRequest : Failed to open " << filename;
+    if (!f.open(QIODevice::ReadOnly)) {
+        qWarning() << QString("PaymentServer::%1: Failed to open %2").arg(__func__).arg(filename);
         return false;
     }
 
-    if (f.size() > MAX_PAYMENT_REQUEST_SIZE)
-    {
-        qWarning() << "PaymentServer::readPaymentRequest : " << filename << " too large";
+    // BIP70 DoS protection
+    if (f.size() > BIP70_MAX_PAYMENTREQUEST_SIZE) {
+        qWarning() << QString("PaymentServer::%1: Payment request %2 is too large (%3 bytes, allowed %4 bytes).")
+            .arg(__func__)
+            .arg(filename)
+            .arg(f.size())
+            .arg(BIP70_MAX_PAYMENTREQUEST_SIZE);
         return false;
     }
 
@@ -500,27 +521,23 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
         return false;
 
     if (request.IsInitialized()) {
-        const payments::PaymentDetails& details = request.getDetails();
-
         // Payment request network matches client network?
-        if (details.network() != Params().NetworkIDString())
-        {
+        if (!verifyNetwork(request.getDetails())) {
             emit message(tr("Payment request rejected"), tr("Payment request network doesn't match client network."),
                 CClientUIInterface::MSG_ERROR);
 
             return false;
         }
 
-        // Expired payment request?
-        if (details.has_expires() && (int64_t)details.expires() < GetTime())
-        {
-            emit message(tr("Payment request rejected"), tr("Payment request has expired."),
+        // Make sure any payment requests involved are still valid.
+        // This is re-checked just before sending coins in WalletModel::sendCoins().
+        if (verifyExpired(request.getDetails())) {
+            emit message(tr("Payment request rejected"), tr("Payment request expired."),
                 CClientUIInterface::MSG_ERROR);
 
             return false;
         }
-    }
-    else {
+    } else {
         emit message(tr("Payment request error"), tr("Payment request is not initialized."),
             CClientUIInterface::MSG_ERROR);
 
@@ -568,10 +585,10 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
     recipient.address = addresses.join("<br />");
 
     if (!recipient.authenticatedMerchant.isEmpty()) {
-        qDebug() << "PaymentServer::processPaymentRequest : Secure payment request from " << recipient.authenticatedMerchant;
+        qDebug() << "PaymentServer::processPaymentRequest: Secure payment request from " << recipient.authenticatedMerchant;
     }
     else {
-        qDebug() << "PaymentServer::processPaymentRequest : Insecure payment request to " << addresses.join(", ");
+        qDebug() << "PaymentServer::processPaymentRequest: Insecure payment request to " << addresses.join(", ");
     }
 
     return true;
@@ -580,10 +597,10 @@ bool PaymentServer::processPaymentRequest(PaymentRequestPlus& request, SendCoins
 void PaymentServer::fetchRequest(const QUrl& url)
 {
     QNetworkRequest netRequest;
-    netRequest.setAttribute(QNetworkRequest::User, "PaymentRequest");
+    netRequest.setAttribute(QNetworkRequest::User, BIP70_MESSAGE_PAYMENTREQUEST);
     netRequest.setUrl(url);
     netRequest.setRawHeader("User-Agent", CLIENT_NAME.c_str());
-    netRequest.setRawHeader("Accept", BITCOIN_REQUEST_MIMETYPE);
+    netRequest.setRawHeader("Accept", BIP71_MIMETYPE_PAYMENTREQUEST);
     netManager->get(netRequest);
 }
 
@@ -594,11 +611,11 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
         return;
 
     QNetworkRequest netRequest;
-    netRequest.setAttribute(QNetworkRequest::User, "PaymentACK");
+    netRequest.setAttribute(QNetworkRequest::User, BIP70_MESSAGE_PAYMENTACK);
     netRequest.setUrl(QString::fromStdString(details.payment_url()));
-    netRequest.setHeader(QNetworkRequest::ContentTypeHeader, BITCOIN_PAYMENTACK_CONTENTTYPE);
+    netRequest.setHeader(QNetworkRequest::ContentTypeHeader, BIP71_MIMETYPE_PAYMENT);
     netRequest.setRawHeader("User-Agent", CLIENT_NAME.c_str());
-    netRequest.setRawHeader("Accept", BITCOIN_PAYMENTACK_MIMETYPE);
+    netRequest.setRawHeader("Accept", BIP71_MIMETYPE_PAYMENTACK);
 
     payments::Payment payment;
     payment.set_merchant_data(details.merchant_data());
@@ -616,7 +633,6 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
     else {
         CPubKey newKey;
         if (wallet->GetKeyFromPool(newKey)) {
-            LOCK(wallet->cs_wallet); // SetAddressBook
             CKeyID keyID = newKey.GetID();
             wallet->SetAddressBook(keyID, strAccount, "refund");
 
@@ -627,7 +643,7 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
         else {
             // This should never happen, because sending coins should have
             // just unlocked the wallet and refilled the keypool.
-            qWarning() << "PaymentServer::fetchPaymentACK : Error getting refund key, refund_to not set";
+            qWarning() << "PaymentServer::fetchPaymentACK: Error getting refund key, refund_to not set";
         }
     }
 
@@ -639,20 +655,32 @@ void PaymentServer::fetchPaymentACK(CWallet* wallet, SendCoinsRecipient recipien
     }
     else {
         // This should never happen, either.
-        qWarning() << "PaymentServer::fetchPaymentACK : Error serializing payment message";
+        qWarning() << "PaymentServer::fetchPaymentACK: Error serializing payment message";
     }
 }
 
 void PaymentServer::netRequestFinished(QNetworkReply* reply)
 {
     reply->deleteLater();
-    if (reply->error() != QNetworkReply::NoError)
-    {
+
+    // BIP70 DoS protection
+    if (reply->size() > BIP70_MAX_PAYMENTREQUEST_SIZE) {
+        QString msg = tr("Payment request %1 is too large (%2 bytes, allowed %3 bytes).")
+            .arg(reply->request().url().toString())
+            .arg(reply->size())
+            .arg(BIP70_MAX_PAYMENTREQUEST_SIZE);
+
+        qWarning() << QString("PaymentServer::%1:").arg(__func__) << msg;
+        emit message(tr("Payment request DoS protection"), msg, CClientUIInterface::MSG_ERROR);
+        return;
+    }
+
+    if (reply->error() != QNetworkReply::NoError) {
         QString msg = tr("Error communicating with %1: %2")
             .arg(reply->request().url().toString())
             .arg(reply->errorString());
 
-        qWarning() << "PaymentServer::netRequestFinished : " << msg;
+        qWarning() << "PaymentServer::netRequestFinished: " << msg;
         emit message(tr("Payment request error"), msg, CClientUIInterface::MSG_ERROR);
         return;
     }
@@ -660,13 +688,13 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply)
     QByteArray data = reply->readAll();
 
     QString requestType = reply->request().attribute(QNetworkRequest::User).toString();
-    if (requestType == "PaymentRequest")
+    if (requestType == BIP70_MESSAGE_PAYMENTREQUEST)
     {
         PaymentRequestPlus request;
         SendCoinsRecipient recipient;
         if (!request.parse(data))
         {
-            qWarning() << "PaymentServer::netRequestFinished : Error parsing payment request";
+            qWarning() << "PaymentServer::netRequestFinished: Error parsing payment request";
             emit message(tr("Payment request error"),
                 tr("Payment request cannot be parsed!"),
                 CClientUIInterface::MSG_ERROR);
@@ -676,7 +704,7 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply)
 
         return;
     }
-    else if (requestType == "PaymentACK")
+    else if (requestType == BIP70_MESSAGE_PAYMENTACK)
     {
         payments::PaymentACK paymentACK;
         if (!paymentACK.ParseFromArray(data.data(), data.size()))
@@ -684,7 +712,7 @@ void PaymentServer::netRequestFinished(QNetworkReply* reply)
             QString msg = tr("Bad response from server %1")
                 .arg(reply->request().url().toString());
 
-            qWarning() << "PaymentServer::netRequestFinished : " << msg;
+            qWarning() << "PaymentServer::netRequestFinished: " << msg;
             emit message(tr("Payment request error"), msg, CClientUIInterface::MSG_ERROR);
         }
         else
@@ -700,7 +728,7 @@ void PaymentServer::reportSslErrors(QNetworkReply* reply, const QList<QSslError>
 
     QString errString;
     foreach (const QSslError& err, errs) {
-        qWarning() << "PaymentServer::reportSslErrors : " << err;
+        qWarning() << "PaymentServer::reportSslErrors: " << err;
         errString += err.errorString() + "\n";
     }
     emit message(tr("Network request error"), errString, CClientUIInterface::MSG_ERROR);
@@ -716,3 +744,27 @@ void PaymentServer::handlePaymentACK(const QString& paymentACKMsg)
     // currently we don't futher process or store the paymentACK message
     emit message(tr("Payment acknowledged"), paymentACKMsg, CClientUIInterface::ICON_INFORMATION | CClientUIInterface::MODAL);
 }
+
+bool PaymentServer::verifyNetwork(const payments::PaymentDetails& requestDetails)
+{
+    bool fVerified = requestDetails.network() == Params().NetworkIDString();
+    if (!fVerified) {
+        qWarning() << QString("PaymentServer::%1: Payment request network \"%2\" doesn't match client network \"%3\".")
+            .arg(__func__)
+            .arg(QString::fromStdString(requestDetails.network()))
+            .arg(QString::fromStdString(Params().NetworkIDString()));
+    }
+    return fVerified;
+}
+
+bool PaymentServer::verifyExpired(const payments::PaymentDetails& requestDetails)
+{
+    bool fVerified = (requestDetails.has_expires() && (int64_t)requestDetails.expires() < GetTime());
+    if (fVerified) {
+        const QString requestExpires = QString::fromStdString(DateTimeStrFormat("%Y-%m-%d %H:%M:%S", (int64_t)requestDetails.expires()));
+        qWarning() << QString("PaymentServer::%1: Payment request expired \"%2\".")
+            .arg(__func__)
+            .arg(requestExpires);
+    }
+    return fVerified;
+}
diff --git a/src/qt/paymentserver.h b/src/qt/paymentserver.h
index 25b08cde49..db5f44ff1d 100644
--- a/src/qt/paymentserver.h
+++ b/src/qt/paymentserver.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_PAYMENTSERVER_H
@@ -40,6 +40,8 @@
 
 class OptionsModel;
 
+class CWallet;
+
 QT_BEGIN_NAMESPACE
 class QApplication;
 class QByteArray;
@@ -50,7 +52,8 @@ class QSslError;
 class QUrl;
 QT_END_NAMESPACE
 
-class CWallet;
+// BIP70 max payment request size in bytes (DoS protection)
+extern const qint64 BIP70_MAX_PAYMENTREQUEST_SIZE;
 
 class PaymentServer : public QObject
 {
@@ -59,7 +62,7 @@ class PaymentServer : public QObject
 public:
     // Parse URIs on command line
     // Returns false on error
-    static bool ipcParseCommandLine(int argc, char *argv[]);
+    static void ipcParseCommandLine(int argc, char *argv[]);
 
     // Returns true if there were URIs on the command line
     // which were successfully sent to an already-running
@@ -85,6 +88,14 @@ public:
     // OptionsModel is used for getting proxy settings and display unit
     void setOptionsModel(OptionsModel *optionsModel);
 
+    // This is now public, because we use it in paymentservertests.cpp
+    static bool readPaymentRequestFromFile(const QString& filename, PaymentRequestPlus& request);
+
+    // Verify that the payment request network matches the client network
+    static bool verifyNetwork(const payments::PaymentDetails& requestDetails);
+    // Verify if the payment request is expired
+    static bool verifyExpired(const payments::PaymentDetails& requestDetails);
+
 signals:
     // Fired when a valid payment request is received
     void receivedPaymentRequest(SendCoinsRecipient);
@@ -118,7 +129,6 @@ protected:
     bool eventFilter(QObject *object, QEvent *event);
 
 private:
-    static bool readPaymentRequest(const QString& filename, PaymentRequestPlus& request);
     bool processPaymentRequest(PaymentRequestPlus& request, SendCoinsRecipient& recipient);
     void fetchRequest(const QUrl& url);
 
diff --git a/src/qt/peertablemodel.cpp b/src/qt/peertablemodel.cpp
index cfa05300cf..dfb7a623af 100644
--- a/src/qt/peertablemodel.cpp
+++ b/src/qt/peertablemodel.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "peertablemodel.h"
diff --git a/src/qt/peertablemodel.h b/src/qt/peertablemodel.h
index 23e71fc685..bff7bb824e 100644
--- a/src/qt/peertablemodel.h
+++ b/src/qt/peertablemodel.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_PEERTABLEMODEL_H
diff --git a/src/qt/qvalidatedlineedit.cpp b/src/qt/qvalidatedlineedit.cpp
index c2567835c9..346369392c 100644
--- a/src/qt/qvalidatedlineedit.cpp
+++ b/src/qt/qvalidatedlineedit.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "qvalidatedlineedit.h"
diff --git a/src/qt/qvalidatedlineedit.h b/src/qt/qvalidatedlineedit.h
index 0996164b0f..f63568d27f 100644
--- a/src/qt/qvalidatedlineedit.h
+++ b/src/qt/qvalidatedlineedit.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_QVALIDATEDLINEEDIT_H
diff --git a/src/qt/qvaluecombobox.cpp b/src/qt/qvaluecombobox.cpp
index ad083f6357..f73268c958 100644
--- a/src/qt/qvaluecombobox.cpp
+++ b/src/qt/qvaluecombobox.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "qvaluecombobox.h"
diff --git a/src/qt/qvaluecombobox.h b/src/qt/qvaluecombobox.h
index 821f41716b..dc85d64cb5 100644
--- a/src/qt/qvaluecombobox.h
+++ b/src/qt/qvaluecombobox.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_QVALUECOMBOBOX_H
diff --git a/src/qt/receivecoinsdialog.cpp b/src/qt/receivecoinsdialog.cpp
index f2c76c8355..28cbd3abed 100644
--- a/src/qt/receivecoinsdialog.cpp
+++ b/src/qt/receivecoinsdialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "receivecoinsdialog.h"
@@ -12,6 +12,7 @@
 #include "optionsmodel.h"
 #include "receiverequestdialog.h"
 #include "recentrequeststablemodel.h"
+#include "scicon.h"
 #include "walletmodel.h"
 
 #include <QAction>
@@ -33,6 +34,11 @@ ReceiveCoinsDialog::ReceiveCoinsDialog(QWidget *parent) :
     ui->receiveButton->setIcon(QIcon());
     ui->showRequestButton->setIcon(QIcon());
     ui->removeRequestButton->setIcon(QIcon());
+#else
+    ui->clearButton->setIcon(SingleColorIcon(":/icons/remove"));
+    ui->receiveButton->setIcon(SingleColorIcon(":/icons/receiving_addresses"));
+    ui->showRequestButton->setIcon(SingleColorIcon(":/icons/edit"));
+    ui->removeRequestButton->setIcon(SingleColorIcon(":/icons/remove"));
 #endif
 
     // context menu actions
diff --git a/src/qt/receivecoinsdialog.h b/src/qt/receivecoinsdialog.h
index 220fb5c7a8..70a1842fa2 100644
--- a/src/qt/receivecoinsdialog.h
+++ b/src/qt/receivecoinsdialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_RECEIVECOINSDIALOG_H
diff --git a/src/qt/receiverequestdialog.cpp b/src/qt/receiverequestdialog.cpp
index cc2f00916f..0c4a20cf92 100644
--- a/src/qt/receiverequestdialog.cpp
+++ b/src/qt/receiverequestdialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "receiverequestdialog.h"
diff --git a/src/qt/receiverequestdialog.h b/src/qt/receiverequestdialog.h
index 6f3b9838e2..3e5f897be6 100644
--- a/src/qt/receiverequestdialog.h
+++ b/src/qt/receiverequestdialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_RECEIVEREQUESTDIALOG_H
diff --git a/src/qt/recentrequeststablemodel.cpp b/src/qt/recentrequeststablemodel.cpp
index 5533adab8b..5221ec3e24 100644
--- a/src/qt/recentrequeststablemodel.cpp
+++ b/src/qt/recentrequeststablemodel.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "recentrequeststablemodel.h"
diff --git a/src/qt/recentrequeststablemodel.h b/src/qt/recentrequeststablemodel.h
index ec6a49070d..85bad126db 100644
--- a/src/qt/recentrequeststablemodel.h
+++ b/src/qt/recentrequeststablemodel.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_RECENTREQUESTSTABLEMODEL_H
diff --git a/src/qt/res/bitcoin-qt-res.rc b/src/qt/res/bitcoin-qt-res.rc
index 809235be5f..c0f3e2fb39 100644
--- a/src/qt/res/bitcoin-qt-res.rc
+++ b/src/qt/res/bitcoin-qt-res.rc
@@ -1,5 +1,4 @@
 IDI_ICON1 ICON DISCARDABLE "icons/bitcoin.ico"
-IDI_ICON2 ICON DISCARDABLE "icons/bitcoin_testnet.ico"
 
 #include <windows.h>             // needed for VERSIONINFO
 #include "../../clientversion.h" // holds the needed client version information
@@ -24,7 +23,7 @@ BEGIN
             VALUE "FileVersion",        VER_FILEVERSION_STR
             VALUE "InternalName",       "bitcoin-qt"
             VALUE "LegalCopyright",     COPYRIGHT_STR
-            VALUE "LegalTrademarks1",   "Distributed under the MIT/X11 software license, see the accompanying file COPYING or http://www.opensource.org/licenses/mit-license.php."
+            VALUE "LegalTrademarks1",   "Distributed under the MIT software license, see the accompanying file COPYING or http://www.opensource.org/licenses/mit-license.php."
             VALUE "OriginalFilename",   "bitcoin-qt.exe"
             VALUE "ProductName",        "Bitcoin Core"
             VALUE "ProductVersion",     VER_PRODUCTVERSION_STR
diff --git a/src/qt/res/icons/about.png b/src/qt/res/icons/about.png
new file mode 100644
index 0000000000..83eb3c07ee
--- /dev/null
+++ b/src/qt/res/icons/about.png
diff --git a/src/qt/res/icons/about_qt.png b/src/qt/res/icons/about_qt.png
new file mode 100644
index 0000000000..dd27a99d0a
--- /dev/null
+++ b/src/qt/res/icons/about_qt.png
diff --git a/src/qt/res/icons/add.png b/src/qt/res/icons/add.png
index ea53fc3493..1442b4e85e 100644
--- a/src/qt/res/icons/add.png
+++ b/src/qt/res/icons/add.png
diff --git a/src/qt/res/icons/address-book.png b/src/qt/res/icons/address-book.png
index 33a2d91754..b11c7d5356 100644
--- a/src/qt/res/icons/address-book.png
+++ b/src/qt/res/icons/address-book.png
diff --git a/src/qt/res/icons/bitcoin.png b/src/qt/res/icons/bitcoin.png
index ce5fbb0c2c..435621af23 100644
--- a/src/qt/res/icons/bitcoin.png
+++ b/src/qt/res/icons/bitcoin.png
diff --git a/src/qt/res/icons/bitcoin_testnet.ico b/src/qt/res/icons/bitcoin_testnet.ico
deleted file mode 100755
index d67d9d5ce5..0000000000
--- a/src/qt/res/icons/bitcoin_testnet.ico
+++ /dev/null
diff --git a/src/qt/res/icons/bitcoin_testnet.png b/src/qt/res/icons/bitcoin_testnet.png
deleted file mode 100644
index 1202021f53..0000000000
--- a/src/qt/res/icons/bitcoin_testnet.png
+++ /dev/null
diff --git a/src/qt/res/icons/clock1.png b/src/qt/res/icons/clock1.png
index 9f0aa5db29..ceae5ed0d9 100644
--- a/src/qt/res/icons/clock1.png
+++ b/src/qt/res/icons/clock1.png
diff --git a/src/qt/res/icons/clock2.png b/src/qt/res/icons/clock2.png
index bad00ccc63..159f69a8fc 100644
--- a/src/qt/res/icons/clock2.png
+++ b/src/qt/res/icons/clock2.png
diff --git a/src/qt/res/icons/clock3.png b/src/qt/res/icons/clock3.png
index 7314d5302b..d668e35ffc 100644
--- a/src/qt/res/icons/clock3.png
+++ b/src/qt/res/icons/clock3.png
diff --git a/src/qt/res/icons/clock4.png b/src/qt/res/icons/clock4.png
index 07f5bfab5f..5ebf8ed7ac 100644
--- a/src/qt/res/icons/clock4.png
+++ b/src/qt/res/icons/clock4.png
diff --git a/src/qt/res/icons/clock5.png b/src/qt/res/icons/clock5.png
index 27e9630eb5..96f15ef7d9 100644
--- a/src/qt/res/icons/clock5.png
+++ b/src/qt/res/icons/clock5.png
diff --git a/src/qt/res/icons/configure.png b/src/qt/res/icons/configure.png
index a1bd70aa4e..5333c83d5e 100644
--- a/src/qt/res/icons/configure.png
+++ b/src/qt/res/icons/configure.png
diff --git a/src/qt/res/icons/connect0.png b/src/qt/res/icons/connect0.png
new file mode 100644
index 0000000000..58e2c3e965
--- /dev/null
+++ b/src/qt/res/icons/connect0.png
diff --git a/src/qt/res/icons/connect0_16.png b/src/qt/res/icons/connect0_16.png
deleted file mode 100644
index a397e7e6a7..0000000000
--- a/src/qt/res/icons/connect0_16.png
+++ /dev/null
diff --git a/src/qt/res/icons/connect1.png b/src/qt/res/icons/connect1.png
new file mode 100644
index 0000000000..949e7a922d
--- /dev/null
+++ b/src/qt/res/icons/connect1.png
diff --git a/src/qt/res/icons/connect1_16.png b/src/qt/res/icons/connect1_16.png
deleted file mode 100644
index 199fb44c53..0000000000
--- a/src/qt/res/icons/connect1_16.png
+++ /dev/null
diff --git a/src/qt/res/icons/connect2.png b/src/qt/res/icons/connect2.png
new file mode 100644
index 0000000000..143b2054fb
--- /dev/null
+++ b/src/qt/res/icons/connect2.png
diff --git a/src/qt/res/icons/connect2_16.png b/src/qt/res/icons/connect2_16.png
deleted file mode 100644
index 2a85ba50d7..0000000000
--- a/src/qt/res/icons/connect2_16.png
+++ /dev/null
diff --git a/src/qt/res/icons/connect3.png b/src/qt/res/icons/connect3.png
new file mode 100644
index 0000000000..143b2054fb
--- /dev/null
+++ b/src/qt/res/icons/connect3.png
diff --git a/src/qt/res/icons/connect3_16.png b/src/qt/res/icons/connect3_16.png
deleted file mode 100644
index d4b35ecc5f..0000000000
--- a/src/qt/res/icons/connect3_16.png
+++ /dev/null
diff --git a/src/qt/res/icons/connect4.png b/src/qt/res/icons/connect4.png
new file mode 100644
index 0000000000..f96e3455ce
--- /dev/null
+++ b/src/qt/res/icons/connect4.png
diff --git a/src/qt/res/icons/connect4_16.png b/src/qt/res/icons/connect4_16.png
deleted file mode 100644
index 0376443b1c..0000000000
--- a/src/qt/res/icons/connect4_16.png
+++ /dev/null
diff --git a/src/qt/res/icons/debugwindow.png b/src/qt/res/icons/debugwindow.png
index 767d0bb9f0..290fe60864 100644
--- a/src/qt/res/icons/debugwindow.png
+++ b/src/qt/res/icons/debugwindow.png
diff --git a/src/qt/res/icons/edit.png b/src/qt/res/icons/edit.png
index 49e2ee3fc1..46582716ef 100644
--- a/src/qt/res/icons/edit.png
+++ b/src/qt/res/icons/edit.png
diff --git a/src/qt/res/icons/editcopy.png b/src/qt/res/icons/editcopy.png
index 7807c59a88..74ac8b2774 100644
--- a/src/qt/res/icons/editcopy.png
+++ b/src/qt/res/icons/editcopy.png
diff --git a/src/qt/res/icons/editpaste.png b/src/qt/res/icons/editpaste.png
index e217e308ea..7b47f4d52b 100644
--- a/src/qt/res/icons/editpaste.png
+++ b/src/qt/res/icons/editpaste.png
diff --git a/src/qt/res/icons/export.png b/src/qt/res/icons/export.png
index 5c1f519054..ac76cc1eff 100644
--- a/src/qt/res/icons/export.png
+++ b/src/qt/res/icons/export.png
diff --git a/src/qt/res/icons/eye.png b/src/qt/res/icons/eye.png
index c4d182adbf..f2f139dbb2 100644
--- a/src/qt/res/icons/eye.png
+++ b/src/qt/res/icons/eye.png
diff --git a/src/qt/res/icons/eye_minus.png b/src/qt/res/icons/eye_minus.png
index 08b048eae3..795bf6436a 100644
--- a/src/qt/res/icons/eye_minus.png
+++ b/src/qt/res/icons/eye_minus.png
diff --git a/src/qt/res/icons/eye_plus.png b/src/qt/res/icons/eye_plus.png
index 4ad653156f..eaab69297a 100644
--- a/src/qt/res/icons/eye_plus.png
+++ b/src/qt/res/icons/eye_plus.png
diff --git a/src/qt/res/icons/filesave.png b/src/qt/res/icons/filesave.png
index 02e78b931a..779cca1d52 100644
--- a/src/qt/res/icons/filesave.png
+++ b/src/qt/res/icons/filesave.png
diff --git a/src/qt/res/icons/history.png b/src/qt/res/icons/history.png
index ac955c7291..68d841fa85 100644
--- a/src/qt/res/icons/history.png
+++ b/src/qt/res/icons/history.png
diff --git a/src/qt/res/icons/info.png b/src/qt/res/icons/info.png
new file mode 100644
index 0000000000..692b50c2a9
--- /dev/null
+++ b/src/qt/res/icons/info.png
diff --git a/src/qt/res/icons/key.png b/src/qt/res/icons/key.png
index 2638b4f231..f301c4f38c 100644
--- a/src/qt/res/icons/key.png
+++ b/src/qt/res/icons/key.png
diff --git a/src/qt/res/icons/lock_closed.png b/src/qt/res/icons/lock_closed.png
index 6de207db7d..1bd98b21a6 100644
--- a/src/qt/res/icons/lock_closed.png
+++ b/src/qt/res/icons/lock_closed.png
diff --git a/src/qt/res/icons/lock_open.png b/src/qt/res/icons/lock_open.png
index 23ce3243aa..a7045133b1 100644
--- a/src/qt/res/icons/lock_open.png
+++ b/src/qt/res/icons/lock_open.png
diff --git a/src/qt/res/icons/open.png b/src/qt/res/icons/open.png
new file mode 100644
index 0000000000..4d958f0e18
--- /dev/null
+++ b/src/qt/res/icons/open.png
diff --git a/src/qt/res/icons/overview.png b/src/qt/res/icons/overview.png
index a274f0c488..411595413d 100644
--- a/src/qt/res/icons/overview.png
+++ b/src/qt/res/icons/overview.png
diff --git a/src/qt/res/icons/qrcode.png b/src/qt/res/icons/qrcode.png
deleted file mode 100644
index ee61aff2f0..0000000000
--- a/src/qt/res/icons/qrcode.png
+++ /dev/null
diff --git a/src/qt/res/icons/quit.png b/src/qt/res/icons/quit.png
index bd73baee20..55e34de4b8 100644
--- a/src/qt/res/icons/quit.png
+++ b/src/qt/res/icons/quit.png
diff --git a/src/qt/res/icons/receive.png b/src/qt/res/icons/receive.png
index 8ed337ca1a..f4e6f58d05 100644
--- a/src/qt/res/icons/receive.png
+++ b/src/qt/res/icons/receive.png
diff --git a/src/qt/res/icons/remove.png b/src/qt/res/icons/remove.png
index 224d2c20c3..8e738d6301 100644
--- a/src/qt/res/icons/remove.png
+++ b/src/qt/res/icons/remove.png
diff --git a/src/qt/res/icons/send.png b/src/qt/res/icons/send.png
index 43c3d7922c..ac76cc1eff 100644
--- a/src/qt/res/icons/send.png
+++ b/src/qt/res/icons/send.png
diff --git a/src/qt/res/icons/synced.png b/src/qt/res/icons/synced.png
index 9fad384768..5ac28d36a3 100644
--- a/src/qt/res/icons/synced.png
+++ b/src/qt/res/icons/synced.png
diff --git a/src/qt/res/icons/transaction0.png b/src/qt/res/icons/transaction0.png
index cfe1a1c8b8..1091b86e68 100644
--- a/src/qt/res/icons/transaction0.png
+++ b/src/qt/res/icons/transaction0.png
diff --git a/src/qt/res/icons/transaction2.png b/src/qt/res/icons/transaction2.png
index 8a804b05ac..5ac28d36a3 100644
--- a/src/qt/res/icons/transaction2.png
+++ b/src/qt/res/icons/transaction2.png
diff --git a/src/qt/res/icons/transaction_conflicted.png b/src/qt/res/icons/transaction_conflicted.png
index 51fff649ab..55e34de4b8 100644
--- a/src/qt/res/icons/transaction_conflicted.png
+++ b/src/qt/res/icons/transaction_conflicted.png
diff --git a/src/qt/res/icons/tx_inout.png b/src/qt/res/icons/tx_inout.png
index f1a7f7bbc3..0a6e72a898 100644
--- a/src/qt/res/icons/tx_inout.png
+++ b/src/qt/res/icons/tx_inout.png
diff --git a/src/qt/res/icons/tx_input.png b/src/qt/res/icons/tx_input.png
index a2d324ee34..9e9ee92932 100644
--- a/src/qt/res/icons/tx_input.png
+++ b/src/qt/res/icons/tx_input.png
diff --git a/src/qt/res/icons/tx_mined.png b/src/qt/res/icons/tx_mined.png
index a7acc6cf7b..5a6ef521c0 100644
--- a/src/qt/res/icons/tx_mined.png
+++ b/src/qt/res/icons/tx_mined.png
diff --git a/src/qt/res/icons/tx_output.png b/src/qt/res/icons/tx_output.png
index a7c5ebf56b..6f66ab6547 100644
--- a/src/qt/res/icons/tx_output.png
+++ b/src/qt/res/icons/tx_output.png
diff --git a/src/qt/res/icons/unit_btc.png b/src/qt/res/icons/unit_btc.png
deleted file mode 100644
index ec3497435c..0000000000
--- a/src/qt/res/icons/unit_btc.png
+++ /dev/null
diff --git a/src/qt/res/icons/unit_mbtc.png b/src/qt/res/icons/unit_mbtc.png
deleted file mode 100644
index 32bf2f2ca0..0000000000
--- a/src/qt/res/icons/unit_mbtc.png
+++ /dev/null
diff --git a/src/qt/res/icons/unit_ubtc.png b/src/qt/res/icons/unit_ubtc.png
deleted file mode 100644
index d5a154882b..0000000000
--- a/src/qt/res/icons/unit_ubtc.png
+++ /dev/null
diff --git a/src/qt/res/icons/verify.png b/src/qt/res/icons/verify.png
new file mode 100644
index 0000000000..8e2cb2cc14
--- /dev/null
+++ b/src/qt/res/icons/verify.png
diff --git a/src/qt/res/images/about.png b/src/qt/res/images/about.png
deleted file mode 100644
index fdede66172..0000000000
--- a/src/qt/res/images/about.png
+++ /dev/null
diff --git a/src/qt/res/images/splash.png b/src/qt/res/images/splash.png
deleted file mode 100644
index 3f2b2fb2bf..0000000000
--- a/src/qt/res/images/splash.png
+++ /dev/null
diff --git a/src/qt/res/images/splash_testnet.png b/src/qt/res/images/splash_testnet.png
deleted file mode 100644
index 786dc9c3bb..0000000000
--- a/src/qt/res/images/splash_testnet.png
+++ /dev/null
diff --git a/src/qt/res/movies/makespinner.sh b/src/qt/res/movies/makespinner.sh
new file mode 100755
index 0000000000..625fb17173
--- /dev/null
+++ b/src/qt/res/movies/makespinner.sh
@@ -0,0 +1,6 @@
+for i in {1..35}
+do
+    value=$(printf "%03d" $i)
+    angle=$(($i * 10))
+    convert spinner-000.png -background "rgba(0,0,0,0.0)" -distort SRT $angle spinner-$value.png
+done
diff --git a/src/qt/res/movies/spinner-000.png b/src/qt/res/movies/spinner-000.png
index 1f4fb732ef..1e92d859da 100644
--- a/src/qt/res/movies/spinner-000.png
+++ b/src/qt/res/movies/spinner-000.png
diff --git a/src/qt/res/movies/spinner-001.png b/src/qt/res/movies/spinner-001.png
index e6ca67a1b0..d167f20541 100644
--- a/src/qt/res/movies/spinner-001.png
+++ b/src/qt/res/movies/spinner-001.png
diff --git a/src/qt/res/movies/spinner-002.png b/src/qt/res/movies/spinner-002.png
index 2360467aff..4a1f1f8e56 100644
--- a/src/qt/res/movies/spinner-002.png
+++ b/src/qt/res/movies/spinner-002.png
diff --git a/src/qt/res/movies/spinner-003.png b/src/qt/res/movies/spinner-003.png
index 52bed62566..fb1c2cd4ad 100644
--- a/src/qt/res/movies/spinner-003.png
+++ b/src/qt/res/movies/spinner-003.png
diff --git a/src/qt/res/movies/spinner-004.png b/src/qt/res/movies/spinner-004.png
index de5c88a56f..4df2132344 100644
--- a/src/qt/res/movies/spinner-004.png
+++ b/src/qt/res/movies/spinner-004.png
diff --git a/src/qt/res/movies/spinner-005.png b/src/qt/res/movies/spinner-005.png
index 27b30336a1..5d6f41e0dc 100644
--- a/src/qt/res/movies/spinner-005.png
+++ b/src/qt/res/movies/spinner-005.png
diff --git a/src/qt/res/movies/spinner-006.png b/src/qt/res/movies/spinner-006.png
index 1fa6b0e242..c1f7d18899 100644
--- a/src/qt/res/movies/spinner-006.png
+++ b/src/qt/res/movies/spinner-006.png
diff --git a/src/qt/res/movies/spinner-007.png b/src/qt/res/movies/spinner-007.png
index f54fa8775e..1e794b2626 100644
--- a/src/qt/res/movies/spinner-007.png
+++ b/src/qt/res/movies/spinner-007.png
diff --git a/src/qt/res/movies/spinner-008.png b/src/qt/res/movies/spinner-008.png
index d25aa5300f..df12ea8719 100644
--- a/src/qt/res/movies/spinner-008.png
+++ b/src/qt/res/movies/spinner-008.png
diff --git a/src/qt/res/movies/spinner-009.png b/src/qt/res/movies/spinner-009.png
index 1349b87586..18fc3a7d16 100644
--- a/src/qt/res/movies/spinner-009.png
+++ b/src/qt/res/movies/spinner-009.png
diff --git a/src/qt/res/movies/spinner-010.png b/src/qt/res/movies/spinner-010.png
index 6020e275f1..a79c845fe8 100644
--- a/src/qt/res/movies/spinner-010.png
+++ b/src/qt/res/movies/spinner-010.png
diff --git a/src/qt/res/movies/spinner-011.png b/src/qt/res/movies/spinner-011.png
index 0d0e811ea7..57baf66895 100644
--- a/src/qt/res/movies/spinner-011.png
+++ b/src/qt/res/movies/spinner-011.png
diff --git a/src/qt/res/movies/spinner-012.png b/src/qt/res/movies/spinner-012.png
index 937afb6be2..9deae7853a 100644
--- a/src/qt/res/movies/spinner-012.png
+++ b/src/qt/res/movies/spinner-012.png
diff --git a/src/qt/res/movies/spinner-013.png b/src/qt/res/movies/spinner-013.png
index 4ae5a671a3..0659d48dec 100644
--- a/src/qt/res/movies/spinner-013.png
+++ b/src/qt/res/movies/spinner-013.png
diff --git a/src/qt/res/movies/spinner-014.png b/src/qt/res/movies/spinner-014.png
index c3a81add0e..bc1ef51bde 100644
--- a/src/qt/res/movies/spinner-014.png
+++ b/src/qt/res/movies/spinner-014.png
diff --git a/src/qt/res/movies/spinner-015.png b/src/qt/res/movies/spinner-015.png
index 184a9fe424..24b57b62c2 100644
--- a/src/qt/res/movies/spinner-015.png
+++ b/src/qt/res/movies/spinner-015.png
diff --git a/src/qt/res/movies/spinner-016.png b/src/qt/res/movies/spinner-016.png
index 2da9b9dc72..d622872651 100644
--- a/src/qt/res/movies/spinner-016.png
+++ b/src/qt/res/movies/spinner-016.png
diff --git a/src/qt/res/movies/spinner-017.png b/src/qt/res/movies/spinner-017.png
index ada83fbe84..f48f688db2 100644
--- a/src/qt/res/movies/spinner-017.png
+++ b/src/qt/res/movies/spinner-017.png
diff --git a/src/qt/res/movies/spinner-018.png b/src/qt/res/movies/spinner-018.png
index cc436ba8cb..a2c8f38b1d 100644
--- a/src/qt/res/movies/spinner-018.png
+++ b/src/qt/res/movies/spinner-018.png
diff --git a/src/qt/res/movies/spinner-019.png b/src/qt/res/movies/spinner-019.png
index 03da25bc2a..9d7cc35d82 100644
--- a/src/qt/res/movies/spinner-019.png
+++ b/src/qt/res/movies/spinner-019.png
diff --git a/src/qt/res/movies/spinner-020.png b/src/qt/res/movies/spinner-020.png
index e7f2ac78e8..1a07acc454 100644
--- a/src/qt/res/movies/spinner-020.png
+++ b/src/qt/res/movies/spinner-020.png
diff --git a/src/qt/res/movies/spinner-021.png b/src/qt/res/movies/spinner-021.png
index dc9e580bf3..9cea8f2543 100644
--- a/src/qt/res/movies/spinner-021.png
+++ b/src/qt/res/movies/spinner-021.png
diff --git a/src/qt/res/movies/spinner-022.png b/src/qt/res/movies/spinner-022.png
index 6e236c805e..60250f6dea 100644
--- a/src/qt/res/movies/spinner-022.png
+++ b/src/qt/res/movies/spinner-022.png
diff --git a/src/qt/res/movies/spinner-023.png b/src/qt/res/movies/spinner-023.png
index f1c3228485..fc290a0cf2 100644
--- a/src/qt/res/movies/spinner-023.png
+++ b/src/qt/res/movies/spinner-023.png
diff --git a/src/qt/res/movies/spinner-024.png b/src/qt/res/movies/spinner-024.png
index d8cf21f178..c5dcf1eae9 100644
--- a/src/qt/res/movies/spinner-024.png
+++ b/src/qt/res/movies/spinner-024.png
diff --git a/src/qt/res/movies/spinner-025.png b/src/qt/res/movies/spinner-025.png
index 2b5ede3293..7f3577a4de 100644
--- a/src/qt/res/movies/spinner-025.png
+++ b/src/qt/res/movies/spinner-025.png
diff --git a/src/qt/res/movies/spinner-026.png b/src/qt/res/movies/spinner-026.png
index 5ee3d2fa8e..1663ddf44c 100644
--- a/src/qt/res/movies/spinner-026.png
+++ b/src/qt/res/movies/spinner-026.png
diff --git a/src/qt/res/movies/spinner-027.png b/src/qt/res/movies/spinner-027.png
index c2ee8082bd..d0e6da4503 100644
--- a/src/qt/res/movies/spinner-027.png
+++ b/src/qt/res/movies/spinner-027.png
diff --git a/src/qt/res/movies/spinner-028.png b/src/qt/res/movies/spinner-028.png
index f70d3531ad..2a7aba50e2 100644
--- a/src/qt/res/movies/spinner-028.png
+++ b/src/qt/res/movies/spinner-028.png
diff --git a/src/qt/res/movies/spinner-029.png b/src/qt/res/movies/spinner-029.png
index 02b97207a9..c8ca15c1e1 100644
--- a/src/qt/res/movies/spinner-029.png
+++ b/src/qt/res/movies/spinner-029.png
diff --git a/src/qt/res/movies/spinner-030.png b/src/qt/res/movies/spinner-030.png
index 0c74e82c6f..c847c99a93 100644
--- a/src/qt/res/movies/spinner-030.png
+++ b/src/qt/res/movies/spinner-030.png
diff --git a/src/qt/res/movies/spinner-031.png b/src/qt/res/movies/spinner-031.png
index c5e29bcec7..403443144e 100644
--- a/src/qt/res/movies/spinner-031.png
+++ b/src/qt/res/movies/spinner-031.png
diff --git a/src/qt/res/movies/spinner-032.png b/src/qt/res/movies/spinner-032.png
index d72c9bf0dd..f9db080567 100644
--- a/src/qt/res/movies/spinner-032.png
+++ b/src/qt/res/movies/spinner-032.png
diff --git a/src/qt/res/movies/spinner-033.png b/src/qt/res/movies/spinner-033.png
index a8b822bfaf..43f57719e7 100644
--- a/src/qt/res/movies/spinner-033.png
+++ b/src/qt/res/movies/spinner-033.png
diff --git a/src/qt/res/movies/spinner-034.png b/src/qt/res/movies/spinner-034.png
index 684aa385e0..c26656ff17 100644
--- a/src/qt/res/movies/spinner-034.png
+++ b/src/qt/res/movies/spinner-034.png
diff --git a/src/qt/res/movies/spinner-035.png b/src/qt/res/movies/spinner-035.png
new file mode 100644
index 0000000000..e471f950a3
--- /dev/null
+++ b/src/qt/res/movies/spinner-035.png
diff --git a/src/qt/res/spinner.png b/src/qt/res/spinner.png
new file mode 100644
index 0000000000..b296a58481
--- /dev/null
+++ b/src/qt/res/spinner.png
diff --git a/src/qt/res/src/clock1.svg b/src/qt/res/src/clock1.svg
deleted file mode 100644
index 793dc7f91c..0000000000
--- a/src/qt/res/src/clock1.svg
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+	c0.6,0,1,0.4,1,1s-0.4,1-1,1H4.3L6,4.5l4.1,4.1c0.4,0.4,0.4,1,0,1.4c-0.2,0.2-0.4,0.3-0.7,0.3S8.9,10.2,8.7,10L4.6,5.9L2.9,4.2v3.2
+	c0,0.6-0.4,1-1,1s-1-0.4-1-1V0.8L7.5,0.8"/>
+</svg>
diff --git a/src/qt/res/src/verify.svg b/src/qt/res/src/verify.svg
new file mode 100644
index 0000000000..1ff11b7f5e
--- /dev/null
+++ b/src/qt/res/src/verify.svg
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 17.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" id="Ebene_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 viewBox="0 0 841.9 595.3" enable-background="new 0 0 841.9 595.3" xml:space="preserve">
+<path d="M654.1,317.5c-14.9-9.9-37.2-2.5-44.6,12.4l-62,111.6l-34.7-34.7c-12.4-12.4-34.7-12.4-47.1,0c-12.4,12.4-12.4,34.7,0,47.1
+	l67,67c7.4,7.4,14.9,9.9,22.3,9.9h5c9.9-2.5,19.8-7.4,24.8-17.4l81.9-148.8C676.4,347.2,671.5,327.4,654.1,317.5z"/>
+<path d="M326.7,471.3H177.9V362.1l94.3-94.3c-5-14.9-7.4-29.8-7.4-44.6c0-81.9,67-148.8,148.8-148.8s148.8,67,148.8,148.8
+	s-67,148.8-148.8,148.8h-37.2v49.6h-49.6L326.7,471.3L326.7,471.3z M227.5,421.7h49.6v-49.6h49.6v-49.6h86.8
+	c54.6,0,99.2-44.6,99.2-99.2S468.1,124,413.5,124s-99.2,44.6-99.2,99.2c0,14.9,2.5,27.3,9.9,39.7l7.4,14.9L230,379.5v42.2H227.5z
+	 M413.5,198.4c14.9,0,24.8,9.9,24.8,24.8c0,14.9-9.9,24.8-24.8,24.8c-14.9,0-24.8-9.9-24.8-24.8
+	C388.7,208.3,401.1,198.4,413.5,198.4 M413.5,173.6c-27.3,0-49.6,22.3-49.6,49.6c0,27.3,22.3,49.6,49.6,49.6
+	c27.3,0,49.6-22.3,49.6-49.6C463.1,195.9,443.3,173.6,413.5,173.6z"/>
+</svg>
diff --git a/src/qt/rpcconsole.cpp b/src/qt/rpcconsole.cpp
index 2d2d448b49..9f3991c4c5 100644
--- a/src/qt/rpcconsole.cpp
+++ b/src/qt/rpcconsole.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "rpcconsole.h"
@@ -8,6 +8,7 @@
 #include "clientmodel.h"
 #include "guiutil.h"
 #include "peertablemodel.h"
+#include "scicon.h"
 
 #include "main.h"
 #include "chainparams.h"
@@ -180,7 +181,7 @@ void RPCExecutor::request(const QString &command)
 
         emit reply(RPCConsole::CMD_REPLY, QString::fromStdString(strPrint));
     }
-    catch (json_spirit::Object& objError)
+    catch (const json_spirit::Object& objError)
     {
         try // Nice formatting for standard-format error
         {
@@ -188,19 +189,19 @@ void RPCExecutor::request(const QString &command)
             std::string message = find_value(objError, "message").get_str();
             emit reply(RPCConsole::CMD_ERROR, QString::fromStdString(message) + " (code " + QString::number(code) + ")");
         }
-        catch(std::runtime_error &) // raised when converting to invalid type, i.e. missing code or message
+        catch (const std::runtime_error&) // raised when converting to invalid type, i.e. missing code or message
         {   // Show raw JSON object
             emit reply(RPCConsole::CMD_ERROR, QString::fromStdString(write_string(json_spirit::Value(objError), false)));
         }
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         emit reply(RPCConsole::CMD_ERROR, QString("Error: ") + QString::fromStdString(e.what()));
     }
 }
 
 RPCConsole::RPCConsole(QWidget *parent) :
-    QDialog(parent),
+    QWidget(parent),
     ui(new Ui::RPCConsole),
     clientModel(0),
     historyPtr(0),
@@ -210,8 +211,9 @@ RPCConsole::RPCConsole(QWidget *parent) :
     GUIUtil::restoreWindowGeometry("nRPCConsoleWindow", this->size(), this);
 
 #ifndef Q_OS_MAC
-    ui->openDebugLogfileButton->setIcon(QIcon(":/icons/export"));
+    ui->openDebugLogfileButton->setIcon(SingleColorIcon(":/icons/export"));
 #endif
+    ui->clearButton->setIcon(SingleColorIcon(":/icons/remove"));
 
     // Install event filter for up and down arrow
     ui->lineEdit->installEventFilter(this);
@@ -278,7 +280,7 @@ bool RPCConsole::eventFilter(QObject* obj, QEvent *event)
             }
         }
     }
-    return QDialog::eventFilter(obj, event);
+    return QWidget::eventFilter(obj, event);
 }
 
 void RPCConsole::setClientModel(ClientModel *model)
@@ -348,7 +350,7 @@ void RPCConsole::clear()
         ui->messagesWidget->document()->addResource(
                     QTextDocument::ImageResource,
                     QUrl(ICON_MAPPING[i].url),
-                    QImage(ICON_MAPPING[i].source).scaled(ICON_SIZE, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
+                    SingleColorImage(ICON_MAPPING[i].source, SingleColor()).scaled(ICON_SIZE, Qt::IgnoreAspectRatio, Qt::SmoothTransformation));
     }
 
     // Set default style sheet
@@ -361,16 +363,17 @@ void RPCConsole::clear()
                 "b { color: #006060; } "
                 );
 
-    message(CMD_REPLY, (tr("Welcome to the Bitcoin RPC console.") + "<br>" +
+    message(CMD_REPLY, (tr("Welcome to the Bitcoin Core RPC console.") + "<br>" +
                         tr("Use up and down arrows to navigate history, and <b>Ctrl-L</b> to clear screen.") + "<br>" +
                         tr("Type <b>help</b> for an overview of available commands.")), true);
 }
 
-void RPCConsole::reject()
+void RPCConsole::keyPressEvent(QKeyEvent *event)
 {
-    // Ignore escape keypress if this is not a seperate window
-    if(windowType() != Qt::Widget)
-        QDialog::reject();
+    if(windowType() != Qt::Widget && event->key() == Qt::Key_Escape)
+    {
+        close();
+    }
 }
 
 void RPCConsole::message(int category, const QString &message, bool html)
@@ -607,6 +610,7 @@ void RPCConsole::updateNodeDetail(const CNodeCombinedStats *stats)
     ui->peerBytesRecv->setText(FormatBytes(stats->nodeStats.nRecvBytes));
     ui->peerConnTime->setText(GUIUtil::formatDurationStr(GetTime() - stats->nodeStats.nTimeConnected));
     ui->peerPingTime->setText(GUIUtil::formatPingTime(stats->nodeStats.dPingTime));
+    ui->timeoffset->setText(GUIUtil::formatTimeOffset(stats->nodeStats.nTimeOffset));
     ui->peerVersion->setText(QString("%1").arg(stats->nodeStats.nVersion));
     ui->peerSubversion->setText(QString::fromStdString(stats->nodeStats.cleanSubVer));
     ui->peerDirection->setText(stats->nodeStats.fInbound ? tr("Inbound") : tr("Outbound"));
diff --git a/src/qt/rpcconsole.h b/src/qt/rpcconsole.h
index 4bb9b62e93..fff5cfbf59 100644
--- a/src/qt/rpcconsole.h
+++ b/src/qt/rpcconsole.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_RPCCONSOLE_H
@@ -10,7 +10,7 @@
 
 #include "net.h"
 
-#include <QDialog>
+#include <QWidget>
 
 class ClientModel;
 
@@ -23,7 +23,7 @@ class QItemSelection;
 QT_END_NAMESPACE
 
 /** Local Bitcoin RPC console. */
-class RPCConsole: public QDialog
+class RPCConsole: public QWidget
 {
     Q_OBJECT
 
@@ -43,6 +43,7 @@ public:
 
 protected:
     virtual bool eventFilter(QObject* obj, QEvent *event);
+    void keyPressEvent(QKeyEvent *);
 
 private slots:
     void on_lineEdit_returnPressed();
@@ -59,7 +60,6 @@ private slots:
 
 public slots:
     void clear();
-    void reject();
     void message(int category, const QString &message, bool html = false);
     /** Set number of connections shown in the UI */
     void setNumConnections(int count);
diff --git a/src/qt/scicon.cpp b/src/qt/scicon.cpp
new file mode 100644
index 0000000000..a0ffcd82a9
--- /dev/null
+++ b/src/qt/scicon.cpp
@@ -0,0 +1,84 @@
+// Copyright (c) 2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "scicon.h"
+
+#include <QApplication>
+#include <QColor>
+#include <QIcon>
+#include <QImage>
+#include <QPalette>
+#include <QPixmap>
+
+static void MakeSingleColorImage(QImage& img, const QColor& colorbase)
+{
+    img = img.convertToFormat(QImage::Format_ARGB32);
+    for (int x = img.width(); x--; )
+    {
+        for (int y = img.height(); y--; )
+        {
+            const QRgb rgb = img.pixel(x, y);
+            img.setPixel(x, y, qRgba(colorbase.red(), colorbase.green(), colorbase.blue(), qAlpha(rgb)));
+        }
+    }
+}
+
+QImage SingleColorImage(const QString& filename, const QColor& colorbase)
+{
+    QImage img(filename);
+    MakeSingleColorImage(img, colorbase);
+    return img;
+}
+
+QIcon SingleColorIcon(const QIcon& ico, const QColor& colorbase)
+{
+    QIcon new_ico;
+    QSize sz;
+    Q_FOREACH(sz, ico.availableSizes())
+    {
+        QImage img(ico.pixmap(sz).toImage());
+        MakeSingleColorImage(img, colorbase);
+        new_ico.addPixmap(QPixmap::fromImage(img));
+    }
+    return new_ico;
+}
+
+QIcon SingleColorIcon(const QString& filename, const QColor& colorbase)
+{
+    return QIcon(QPixmap::fromImage(SingleColorImage(filename, colorbase)));
+}
+
+QColor SingleColor()
+{
+    const QColor colorHighlightBg(QApplication::palette().color(QPalette::Highlight));
+    const QColor colorHighlightFg(QApplication::palette().color(QPalette::HighlightedText));
+    const QColor colorText(QApplication::palette().color(QPalette::WindowText));
+    const int colorTextLightness = colorText.lightness();
+    QColor colorbase;
+    if (abs(colorHighlightBg.lightness() - colorTextLightness) < abs(colorHighlightFg.lightness() - colorTextLightness))
+        colorbase = colorHighlightBg;
+    else
+        colorbase = colorHighlightFg;
+    return colorbase;
+}
+
+QIcon SingleColorIcon(const QString& filename)
+{
+    return SingleColorIcon(filename, SingleColor());
+}
+
+static QColor TextColor()
+{
+    return QColor(QApplication::palette().color(QPalette::WindowText));
+}
+
+QIcon TextColorIcon(const QString& filename)
+{
+    return SingleColorIcon(filename, TextColor());
+}
+
+QIcon TextColorIcon(const QIcon& ico)
+{
+    return SingleColorIcon(ico, TextColor());
+}
diff --git a/src/qt/scicon.h b/src/qt/scicon.h
new file mode 100644
index 0000000000..1388069ddb
--- /dev/null
+++ b/src/qt/scicon.h
@@ -0,0 +1,24 @@
+// Copyright (c) 2014 The Bitcoin developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_QT_SCICON_H
+#define BITCOIN_QT_SCICON_H
+
+#include <QtCore>
+
+QT_BEGIN_NAMESPACE
+class QColor;
+class QIcon;
+class QString;
+QT_END_NAMESPACE
+
+QImage SingleColorImage(const QString& filename, const QColor&);
+QIcon SingleColorIcon(const QIcon&, const QColor&);
+QIcon SingleColorIcon(const QString& filename, const QColor&);
+QColor SingleColor();
+QIcon SingleColorIcon(const QString& filename);
+QIcon TextColorIcon(const QIcon&);
+QIcon TextColorIcon(const QString& filename);
+
+#endif // BITCOIN_QT_SCICON_H
diff --git a/src/qt/sendcoinsdialog.cpp b/src/qt/sendcoinsdialog.cpp
index 46eb58ca43..5aef2d7539 100644
--- a/src/qt/sendcoinsdialog.cpp
+++ b/src/qt/sendcoinsdialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "sendcoinsdialog.h"
@@ -11,6 +11,7 @@
 #include "coincontroldialog.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
+#include "scicon.h"
 #include "sendcoinsentry.h"
 #include "walletmodel.h"
 
@@ -38,6 +39,10 @@ SendCoinsDialog::SendCoinsDialog(QWidget *parent) :
     ui->addButton->setIcon(QIcon());
     ui->clearButton->setIcon(QIcon());
     ui->sendButton->setIcon(QIcon());
+#else
+    ui->addButton->setIcon(SingleColorIcon(":/icons/add"));
+    ui->clearButton->setIcon(SingleColorIcon(":/icons/remove"));
+    ui->sendButton->setIcon(SingleColorIcon(":/icons/send"));
 #endif
 
     GUIUtil::setupAddressWidget(ui->lineEditCoinControlChange, this);
@@ -521,8 +526,12 @@ void SendCoinsDialog::processSendCoinsReturn(const WalletModel::SendCoinsReturn
         msgParams.first = tr("The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
         msgParams.second = CClientUIInterface::MSG_ERROR;
         break;
-    case WalletModel::InsaneFee:
-        msgParams.first = tr("A fee higher than %1 is considered an insanely high fee.").arg(BitcoinUnits::formatWithUnit(model->getOptionsModel()->getDisplayUnit(), 10000000));
+    case WalletModel::AbsurdFee:
+        msgParams.first = tr("A fee higher than %1 is considered an absurdly high fee.").arg(BitcoinUnits::formatWithUnit(model->getOptionsModel()->getDisplayUnit(), 10000000));
+        break;
+    case WalletModel::PaymentRequestExpired:
+        msgParams.first = tr("Payment request expired!");
+        msgParams.second = CClientUIInterface::MSG_ERROR;
         break;
     // included to prevent a compiler warning.
     case WalletModel::OK:
@@ -631,7 +640,7 @@ void SendCoinsDialog::updateSmartFeeLabel()
     {
         ui->labelSmartFee->setText(BitcoinUnits::formatWithUnit(model->getOptionsModel()->getDisplayUnit(), feeRate.GetFeePerK()) + "/kB");
         ui->labelSmartFee2->hide();
-        ui->labelFeeEstimation->setText(tr("Estimated to begin confirmation within %1 block(s).").arg(nBlocksToConfirm));
+        ui->labelFeeEstimation->setText(tr("Estimated to begin confirmation within %n block(s).", "", nBlocksToConfirm));
     }
 
     updateFeeMinimizedLabel();
@@ -652,19 +661,19 @@ void SendCoinsDialog::coinControlClipboardAmount()
 // Coin Control: copy label "Fee" to clipboard
 void SendCoinsDialog::coinControlClipboardFee()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlFee->text().left(ui->labelCoinControlFee->text().indexOf(" ")).replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlFee->text().left(ui->labelCoinControlFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 }
 
 // Coin Control: copy label "After fee" to clipboard
 void SendCoinsDialog::coinControlClipboardAfterFee()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlAfterFee->text().left(ui->labelCoinControlAfterFee->text().indexOf(" ")).replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlAfterFee->text().left(ui->labelCoinControlAfterFee->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 }
 
 // Coin Control: copy label "Bytes" to clipboard
 void SendCoinsDialog::coinControlClipboardBytes()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlBytes->text().replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlBytes->text().replace(ASYMP_UTF8, ""));
 }
 
 // Coin Control: copy label "Priority" to clipboard
@@ -682,7 +691,7 @@ void SendCoinsDialog::coinControlClipboardLowOutput()
 // Coin Control: copy label "Change" to clipboard
 void SendCoinsDialog::coinControlClipboardChange()
 {
-    GUIUtil::setClipboard(ui->labelCoinControlChange->text().left(ui->labelCoinControlChange->text().indexOf(" ")).replace("~", ""));
+    GUIUtil::setClipboard(ui->labelCoinControlChange->text().left(ui->labelCoinControlChange->text().indexOf(" ")).replace(ASYMP_UTF8, ""));
 }
 
 // Coin Control: settings menu - coin control enabled/disabled by user
diff --git a/src/qt/sendcoinsdialog.h b/src/qt/sendcoinsdialog.h
index 15d39782a1..14adb02573 100644
--- a/src/qt/sendcoinsdialog.h
+++ b/src/qt/sendcoinsdialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_SENDCOINSDIALOG_H
diff --git a/src/qt/sendcoinsentry.cpp b/src/qt/sendcoinsentry.cpp
index 52545c3857..6db6eee75b 100644
--- a/src/qt/sendcoinsentry.cpp
+++ b/src/qt/sendcoinsentry.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "sendcoinsentry.h"
@@ -9,6 +9,7 @@
 #include "addresstablemodel.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
+#include "scicon.h"
 #include "walletmodel.h"
 
 #include <QApplication>
@@ -21,6 +22,12 @@ SendCoinsEntry::SendCoinsEntry(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    ui->addressBookButton->setIcon(SingleColorIcon(":/icons/address-book"));
+    ui->pasteButton->setIcon(SingleColorIcon(":/icons/editpaste"));
+    ui->deleteButton->setIcon(SingleColorIcon(":/icons/remove"));
+    ui->deleteButton_is->setIcon(SingleColorIcon(":/icons/remove"));
+    ui->deleteButton_s->setIcon(SingleColorIcon(":/icons/remove"));
+
     setCurrentWidget(ui->SendCoins);
 
 #ifdef Q_OS_MAC
diff --git a/src/qt/sendcoinsentry.h b/src/qt/sendcoinsentry.h
index 69ad1032df..4cb00cd36a 100644
--- a/src/qt/sendcoinsentry.h
+++ b/src/qt/sendcoinsentry.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_SENDCOINSENTRY_H
diff --git a/src/qt/signverifymessagedialog.cpp b/src/qt/signverifymessagedialog.cpp
index d4d021e21c..970f6a520d 100644
--- a/src/qt/signverifymessagedialog.cpp
+++ b/src/qt/signverifymessagedialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "signverifymessagedialog.h"
@@ -7,6 +7,7 @@
 
 #include "addressbookpage.h"
 #include "guiutil.h"
+#include "scicon.h"
 #include "walletmodel.h"
 
 #include "base58.h"
@@ -25,6 +26,15 @@ SignVerifyMessageDialog::SignVerifyMessageDialog(QWidget *parent) :
 {
     ui->setupUi(this);
 
+    ui->addressBookButton_SM->setIcon(SingleColorIcon(":/icons/address-book"));
+    ui->pasteButton_SM->setIcon(SingleColorIcon(":/icons/editpaste"));
+    ui->copySignatureButton_SM->setIcon(SingleColorIcon(":/icons/editcopy"));
+    ui->signMessageButton_SM->setIcon(SingleColorIcon(":/icons/edit"));
+    ui->clearButton_SM->setIcon(SingleColorIcon(":/icons/remove"));
+    ui->addressBookButton_VM->setIcon(SingleColorIcon(":/icons/address-book"));
+    ui->verifyMessageButton_VM->setIcon(SingleColorIcon(":/icons/transaction_0"));
+    ui->clearButton_VM->setIcon(SingleColorIcon(":/icons/remove"));
+
 #if QT_VERSION >= 0x040700
     ui->signatureOut_SM->setPlaceholderText(tr("Click \"Sign Message\" to generate signature"));
 #endif
diff --git a/src/qt/signverifymessagedialog.h b/src/qt/signverifymessagedialog.h
index 36550edc8d..27807adc84 100644
--- a/src/qt/signverifymessagedialog.h
+++ b/src/qt/signverifymessagedialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_SIGNVERIFYMESSAGEDIALOG_H
diff --git a/src/qt/splashscreen.cpp b/src/qt/splashscreen.cpp
index b4b81440ca..e6a7fcaec5 100644
--- a/src/qt/splashscreen.cpp
+++ b/src/qt/splashscreen.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "splashscreen.h"
@@ -19,6 +19,7 @@
 #include <QCloseEvent>
 #include <QDesktopWidget>
 #include <QPainter>
+#include <QRadialGradient>
 
 SplashScreen::SplashScreen(Qt::WindowFlags f, const NetworkStyle *networkStyle) :
     QWidget(0, f), curAlignment(0)
@@ -30,6 +31,10 @@ SplashScreen::SplashScreen(Qt::WindowFlags f, const NetworkStyle *networkStyle)
     int titleCopyrightVSpace    = 40;
 
     float fontFactor            = 1.0;
+    float devicePixelRatio      = 1.0;
+#if QT_VERSION > 0x050100
+    devicePixelRatio = ((QGuiApplication*)QCoreApplication::instance())->devicePixelRatio();
+#endif
 
     // define text to place
     QString titleText       = tr("Bitcoin Core");
@@ -37,14 +42,35 @@ SplashScreen::SplashScreen(Qt::WindowFlags f, const NetworkStyle *networkStyle)
     QString copyrightText   = QChar(0xA9)+QString(" 2009-%1 ").arg(COPYRIGHT_YEAR) + QString(tr("The Bitcoin Core developers"));
     QString titleAddText    = networkStyle->getTitleAddText();
 
-    QString font            = "Arial";
+    QString font            = QApplication::font().toString();
+
+    // create a bitmap according to device pixelratio
+    QSize splashSize(480*devicePixelRatio,320*devicePixelRatio);
+    pixmap = QPixmap(splashSize);
 
-    // load the bitmap for writing some text over it
-    pixmap     = networkStyle->getSplashImage();
+#if QT_VERSION > 0x050100
+    // change to HiDPI if it makes sense
+    pixmap.setDevicePixelRatio(devicePixelRatio);
+#endif
 
     QPainter pixPaint(&pixmap);
     pixPaint.setPen(QColor(100,100,100));
 
+    // draw a slighly radial gradient
+    QRadialGradient gradient(QPoint(0,0), splashSize.width()/devicePixelRatio);
+    gradient.setColorAt(0, Qt::white);
+    gradient.setColorAt(1, QColor(247,247,247));
+    QRect rGradient(QPoint(0,0), splashSize);
+    pixPaint.fillRect(rGradient, gradient);
+
+    // draw the bitcoin icon, expected size of PNG: 1024x1024
+    QRect rectIcon(QPoint(-150,-122), QSize(430,430));
+
+    const QSize requiredSize(1024,1024);
+    QPixmap icon(networkStyle->getAppIcon().pixmap(requiredSize));
+
+    pixPaint.drawPixmap(rectIcon, icon);
+
     // check font size and drawing with
     pixPaint.setFont(QFont(font, 33*fontFactor));
     QFontMetrics fm = pixPaint.fontMetrics();
@@ -57,7 +83,7 @@ SplashScreen::SplashScreen(Qt::WindowFlags f, const NetworkStyle *networkStyle)
     pixPaint.setFont(QFont(font, 33*fontFactor));
     fm = pixPaint.fontMetrics();
     titleTextWidth  = fm.width(titleText);
-    pixPaint.drawText(pixmap.width()-titleTextWidth-paddingRight,paddingTop,titleText);
+    pixPaint.drawText(pixmap.width()/devicePixelRatio-titleTextWidth-paddingRight,paddingTop,titleText);
 
     pixPaint.setFont(QFont(font, 15*fontFactor));
 
@@ -68,11 +94,11 @@ SplashScreen::SplashScreen(Qt::WindowFlags f, const NetworkStyle *networkStyle)
         pixPaint.setFont(QFont(font, 10*fontFactor));
         titleVersionVSpace -= 5;
     }
-    pixPaint.drawText(pixmap.width()-titleTextWidth-paddingRight+2,paddingTop+titleVersionVSpace,versionText);
+    pixPaint.drawText(pixmap.width()/devicePixelRatio-titleTextWidth-paddingRight+2,paddingTop+titleVersionVSpace,versionText);
 
     // draw copyright stuff
     pixPaint.setFont(QFont(font, 10*fontFactor));
-    pixPaint.drawText(pixmap.width()-titleTextWidth-paddingRight,paddingTop+titleCopyrightVSpace,copyrightText);
+    pixPaint.drawText(pixmap.width()/devicePixelRatio-titleTextWidth-paddingRight,paddingTop+titleCopyrightVSpace,copyrightText);
 
     // draw additional text if special network
     if(!titleAddText.isEmpty()) {
@@ -81,7 +107,7 @@ SplashScreen::SplashScreen(Qt::WindowFlags f, const NetworkStyle *networkStyle)
         pixPaint.setFont(boldFont);
         fm = pixPaint.fontMetrics();
         int titleAddTextWidth  = fm.width(titleAddText);
-        pixPaint.drawText(pixmap.width()-titleAddTextWidth-10,15,titleAddText);
+        pixPaint.drawText(pixmap.width()/devicePixelRatio-titleAddTextWidth-10,15,titleAddText);
     }
 
     pixPaint.end();
@@ -90,7 +116,7 @@ SplashScreen::SplashScreen(Qt::WindowFlags f, const NetworkStyle *networkStyle)
     setWindowTitle(titleText + " " + titleAddText);
 
     // Resize window and move to center of desktop, disallow resizing
-    QRect r(QPoint(), pixmap.size());
+    QRect r(QPoint(), QSize(pixmap.size().width()/devicePixelRatio,pixmap.size().height()/devicePixelRatio));
     resize(r.size());
     setFixedSize(r.size());
     move(QApplication::desktop()->screenGeometry().center() - r.center());
diff --git a/src/qt/splashscreen.h b/src/qt/splashscreen.h
index 4d9651f022..84e4556dd8 100644
--- a/src/qt/splashscreen.h
+++ b/src/qt/splashscreen.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_SPLASHSCREEN_H
diff --git a/src/qt/test/paymentrequestdata.h b/src/qt/test/paymentrequestdata.h
index aeaa7d89a0..50636d7c67 100644
--- a/src/qt/test/paymentrequestdata.h
+++ b/src/qt/test/paymentrequestdata.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -6,16 +6,16 @@
 // Data for paymentservertests.cpp
 //
 
-// Base64/DER-encoded fake certificate authority certificate.
+// Base64/DER-encoded fake certificate authority certificates.
 // Convert pem to base64/der with:
-// cat file.pem | openssl x509 -inform PEM -outform DER | openssl enc -base64
-//
+// openssl x509 -in cert.pem -inform PEM -outform DER | openssl enc -base64
+
 // Serial Number: 10302349811211485352 (0x8ef94c91b112c0a8)
 // Issuer: CN=PaymentRequest Test CA
 // Subject: CN=PaymentRequest Test CA
 // Not Valid After : Dec  8 16:37:24 2022 GMT
 //
-const char* caCert_BASE64 =
+const char* caCert1_BASE64 =
 "\
 MIIB0DCCATmgAwIBAgIJAI75TJGxEsCoMA0GCSqGSIb3DQEBCwUAMCExHzAdBgNV\
 BAMTFlBheW1lbnRSZXF1ZXN0IFRlc3QgQ0EwHhcNMTIxMjEwMTYzNzI0WhcNMjIx\
@@ -29,11 +29,36 @@ RtQcf0AJ9olzUMY4syehxbzUJP6aeXhZEYiMvdvcv9D55clq6+WLLlNT3jBgAaVn\
 p3waRjPD4bUX3nv+ojz5s4puw7Qq5QUZlhGsMzPvwDGCmZkL\
 ";
 
+// Serial Number: f0:da:97:e4:38:d7:64:16
+// Issuer: CN=PaymentRequest Test CA
+// Subject: CN=PaymentRequest Test CA
+// Not Valid After : Jan  8 18:21:06 2025 GMT
+//
+const char* caCert2_BASE64 =
+"\
+MIIC1TCCAb2gAwIBAgIJAPDal+Q412QWMA0GCSqGSIb3DQEBCwUAMCExHzAdBgNV\
+BAMMFlBheW1lbnRSZXF1ZXN0IFRlc3QgQ0EwHhcNMTUwMTExMTgyMTA2WhcNMjUw\
+MTA4MTgyMTA2WjAhMR8wHQYDVQQDDBZQYXltZW50UmVxdWVzdCBUZXN0IENBMIIB\
+IjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1S9wVLfTplJuT/1OaaBgl/Mb\
+I392v8S9kHbzYz7B4OTMslaO7piz0v3SO3TKMh0dswjiRdHrIgpO7XdIUQiU/ugg\
+xDw0kuNehfz1ycaGedlFFtFHTNXqLyIUF3dlwHhQwaomM6RXoJmxLny5BhYHEcmk\
+yWwr3Cdjd9gAZpblugVJB9C1e40uyL8ao4PHdLzOqO27iSe6riP8SwwisJZEbMaz\
+AZpgNEEMbIXPJEFvm5HTRXSMtQCOTSZYMFF0M2yrtmlECnz7hWP19b9bcoDzZQB4\
+ylIsFG/7q2jV7MC/e2STZv+niJiHL08RUdoFpAgzaxMgqj63C7B55HgNDNHJYQID\
+AQABoxAwDjAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQBGejPxLxj9\
++crv6gUeEBMZPiUx7pUgcI22Wm5yymP96B4fwI3Y0DBehq20d76vbWGPN17Z6pH3\
+ge7PVY1SYqXtS6hXTo4olCm/BZADli+2Bs2xCiaa+Ltve4ufVej+bKJXN/YnrhvO\
+Kq+klQkuuHywU+GJV/NQeBqToIrSOBgi477NgLFCCCmmx2QWsxHoCFGfuRCBVseT\
+z2k/tMuALCDXGeZBRPTsGHu1y4cj84swAeoDK5QSQcI+Ub7GKc+zkoj02sdDLiMo\
+3wokYPcIy47oclhmb4xubHc+y7nF610yZBoC/zgbhbawnZ65hDDWkdQ/SVAnWZD7\
+9PFfmNnYPTQH\
+";
+
 //
 // This payment request validates directly against the
-// above certificate authority.
+// caCert1 certificate authority.
 //
-const char* paymentrequest1_BASE64 =
+const char* paymentrequest1_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhrxAwruAzCCAeowggFToAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwITEfMB0GA1UEAxMWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xMjEyMTAx\
@@ -55,7 +80,7 @@ SiWVbw0tX/68iSQEGGfh9n6ee/8Myb3ICdw=\
 //
 // Signed, but expired, merchant cert in the request
 //
-const char* paymentrequest2_BASE64 =
+const char* paymentrequest2_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhrsAwrpAzCCAeUwggFOoAMCAQICAQMwDQYJKoZIhvcNAQEL\
 BQAwITEfMB0GA1UEAxMWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xMzAyMjMy\
@@ -75,9 +100,9 @@ tejrSPOBNSJ3Mi/q5u2Yl4gJZY2b\
 ";
 
 //
-// 10-long chain, all intermediates valid
+// 10-long certificate chain, all intermediates valid
 //
-const char* paymentrequest3_BASE64 =
+const char* paymentrequest3_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1Nhq8JAr/AzCCAfswggFkoAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwPzEUMBIGA1UEAwwLdGVzdGNhOC5vcmcxJzAlBgNVBAoMHlBheW1lbnQgUmVx\
@@ -184,9 +209,9 @@ chhR/aHOuEMTxmc12K4rNlgYtHCsxLP9zd+6u0cva3TucZ6EzS8PKEib/+r12/52\
 ";
 
 //
-// Long chain, with an invalid (expired) cert in the middle
+// Long certificate chain, with an expired certificate in the middle
 //
-const char* paymentrequest4_BASE64 =
+const char* paymentrequest4_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhqeJAr/AzCCAfswggFkoAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwPzEUMBIGA1UEAwwLdGVzdGNhOC5vcmcxJzAlBgNVBAoMHlBheW1lbnQgUmVx\
@@ -291,7 +316,10 @@ HXQjsfdR58qZQS9CS5DAtRUf0R8+43/wijO/hb49VNaNXmY+/cPHMkahP2aV3tZi\
 FAyZblLik9A7ZvF+UsjeFQiHB5wzWQvbqk5wQ4yabHIXoYv/E0q+eQ==\
 ";
 
-const char* paymentrequest5_BASE64 =
+//
+// Validly signed, but by a CA not in our root CA list
+//
+const char* paymentrequest5_cert1_BASE64 =
 "\
 Egt4NTA5K3NoYTI1NhrxAwruAzCCAeowggFToAMCAQICAQEwDQYJKoZIhvcNAQEL\
 BQAwITEfMB0GA1UEAxMWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xMzA0MTkx\
@@ -309,3 +337,99 @@ ssymvca1S/1KeM3n8Ydi2fi1JUzAAr59xPvNJRUeqCLP9upHn5z7br3P12Oz9A20\
 5/4wL4ClPRPVnOHgij0bEg+y0tGESqmF1rfOfXDszlo2U92wCxS07kq79YAZJ1Zo\
 XYh860/Q4wvc7lfiTe+dXBzPKAKhMy91yETY\
 ";
+
+//
+// Contains a testnet paytoaddress, so payment request network doesn't match client network
+//
+const char* paymentrequest1_cert2_BASE64 =
+"\
+Egt4NTA5K3NoYTI1NhrQBArNBDCCAkkwggExoAMCAQICAQEwDQYJKoZIhvcNAQEL\
+BQAwITEfMB0GA1UEAwwWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xNTAxMTEx\
+ODIxMDhaFw0yNTAxMDgxODIxMDhaMCExHzAdBgNVBAMMFlBheW1lbnRSZXF1ZXN0\
+IFRlc3QgQ0EwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMsZqzkzeBGo+i2N\
+mUak3Ciodr1V7S062VOy7N0OQYNDQHYkgDFAUET7cEb5VJaHPv5m3ppTBpU9xBcf\
+wbHHUt4VjA+mhRmYrl1khjvZM+X8kEqvWn20BtcM9R6r0yIYec8UERDDHBleL/P8\
+RkxEnVLjYTV9zigCXfMsgYb3EQShAgMBAAGjEDAOMAwGA1UdEwQFMAMBAf8wDQYJ\
+KoZIhvcNAQELBQADggEBABUJpl3QCqsoDSxAsQdV6zKT4VGV76AzoGj7etQsQY+r\
++S26VfWh/fMobEzuxFChr0USgLJ6FoK78hAtoZvt1lrye9yqFv/ig3WLWsJKWHHb\
+3RT6oR03CIwZXFSUasi08QDVLxafwsU5OMcPLucF3a1lRL1ccYrNgVCCx1+X7Bos\
+tIgDGRQQ4AyoHTcfVd2hEGeUv7k14mOxFsAp6851yosHq9Q2kwmdH+rHEJbjof87\
+yyKLagc4owyXBZYkQmkeHWCNqnuRmO5vUsfVb0UUrkD64o7Th/NjwooA7SCiUXl6\
+dfygT1b7ggpx7GC+sP2DsIM47IAZ55drjqX5u2f+Ba0iPQoEdGVzdBIhCIDWwowE\
+Ehl2qRQErGqUUwSsaMpDvWIaGnJGNQqi8oisGNeMy6UFKgxKdXN0IFRlc3Rpbmcq\
+gAFwThsozZxkZxzCn4R8WxNiLFV6m0ye9fEtSbolfaW+EjBMpO03lr/dwNnrclhg\
+ew+A05xfZztrAt16XKEY7qKJ/eY2nLd0fVAIu/nIt+7/VYVXT83zLrWc150aRS7W\
+AdJbL3JOJLs6Eyp5zrPbfI8faRttFAdONKDrJgIpuW1E3g==\
+";
+
+//
+// Expired payment request (expires is set to 1 = 1970-01-01 00:00:01)
+//
+const char* paymentrequest2_cert2_BASE64 =
+"\
+Egt4NTA5K3NoYTI1NhrQBArNBDCCAkkwggExoAMCAQICAQEwDQYJKoZIhvcNAQEL\
+BQAwITEfMB0GA1UEAwwWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xNTAxMTEx\
+ODIxMDhaFw0yNTAxMDgxODIxMDhaMCExHzAdBgNVBAMMFlBheW1lbnRSZXF1ZXN0\
+IFRlc3QgQ0EwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMsZqzkzeBGo+i2N\
+mUak3Ciodr1V7S062VOy7N0OQYNDQHYkgDFAUET7cEb5VJaHPv5m3ppTBpU9xBcf\
+wbHHUt4VjA+mhRmYrl1khjvZM+X8kEqvWn20BtcM9R6r0yIYec8UERDDHBleL/P8\
+RkxEnVLjYTV9zigCXfMsgYb3EQShAgMBAAGjEDAOMAwGA1UdEwQFMAMBAf8wDQYJ\
+KoZIhvcNAQELBQADggEBABUJpl3QCqsoDSxAsQdV6zKT4VGV76AzoGj7etQsQY+r\
++S26VfWh/fMobEzuxFChr0USgLJ6FoK78hAtoZvt1lrye9yqFv/ig3WLWsJKWHHb\
+3RT6oR03CIwZXFSUasi08QDVLxafwsU5OMcPLucF3a1lRL1ccYrNgVCCx1+X7Bos\
+tIgDGRQQ4AyoHTcfVd2hEGeUv7k14mOxFsAp6851yosHq9Q2kwmdH+rHEJbjof87\
+yyKLagc4owyXBZYkQmkeHWCNqnuRmO5vUsfVb0UUrkD64o7Th/NjwooA7SCiUXl6\
+dfygT1b7ggpx7GC+sP2DsIM47IAZ55drjqX5u2f+Ba0iQgoEdGVzdBIgCICt4gQS\
+GXapFASsapRTBKxoykO9YhoackY1CqLyiKwYiNLUpQUgASoQVGVzdGluZyB0ZXN0\
+bmV0ISqAATXq9A5nmJgtmee/bQTeHeif4w1YYFPBlKghwx6qbVgXTWnwBJtOQhhV\
+sZdzbTl95ENR7/Y7VJupW9kDWobCK7zUUhLAzUlwmLlcx6itHw8LTUF5HK+AwsZm\
+Zs85lISGvOS0NZW/ENa6l+oQRnL87oqVZr/EDGiuqjz6T0ThQi0l\
+";
+
+//
+// Unexpired payment request (expires is set to 0x7FFFFFFFFFFFFFFF = max. int64_t)
+//
+const char* paymentrequest3_cert2_BASE64 =
+"\
+Egt4NTA5K3NoYTI1NhrQBArNBDCCAkkwggExoAMCAQICAQEwDQYJKoZIhvcNAQEL\
+BQAwITEfMB0GA1UEAwwWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xNTAxMTEx\
+ODIxMDhaFw0yNTAxMDgxODIxMDhaMCExHzAdBgNVBAMMFlBheW1lbnRSZXF1ZXN0\
+IFRlc3QgQ0EwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMsZqzkzeBGo+i2N\
+mUak3Ciodr1V7S062VOy7N0OQYNDQHYkgDFAUET7cEb5VJaHPv5m3ppTBpU9xBcf\
+wbHHUt4VjA+mhRmYrl1khjvZM+X8kEqvWn20BtcM9R6r0yIYec8UERDDHBleL/P8\
+RkxEnVLjYTV9zigCXfMsgYb3EQShAgMBAAGjEDAOMAwGA1UdEwQFMAMBAf8wDQYJ\
+KoZIhvcNAQELBQADggEBABUJpl3QCqsoDSxAsQdV6zKT4VGV76AzoGj7etQsQY+r\
++S26VfWh/fMobEzuxFChr0USgLJ6FoK78hAtoZvt1lrye9yqFv/ig3WLWsJKWHHb\
+3RT6oR03CIwZXFSUasi08QDVLxafwsU5OMcPLucF3a1lRL1ccYrNgVCCx1+X7Bos\
+tIgDGRQQ4AyoHTcfVd2hEGeUv7k14mOxFsAp6851yosHq9Q2kwmdH+rHEJbjof87\
+yyKLagc4owyXBZYkQmkeHWCNqnuRmO5vUsfVb0UUrkD64o7Th/NjwooA7SCiUXl6\
+dfygT1b7ggpx7GC+sP2DsIM47IAZ55drjqX5u2f+Ba0iSgoEdGVzdBIgCICt4gQS\
+GXapFASsapRTBKxoykO9YhoackY1CqLyiKwYyNfZpQUg//////////9/KhBUZXN0\
+aW5nIHRlc3RuZXQhKoABNwi8WnMW4aMvbmvorTiiWJLFhofLFnsoWCJnj3rWLnLh\
+n3w6q/fZ26p50ERL/noxdTUfeFsKnlECkUu/fOcOrqyYDiwvxI0SZ034DleVyFU1\
+Z3T+X0zcL8oe7bX01Yf+s2V+5JXQXarKnKBrZCGgv2ARjFNSZe7E7vGg5K4Q6Q8=\
+";
+
+//
+// Unexpired payment request (expires is set to 0x8000000000000000 > max. int64_t, allowed uint64)
+//
+const char* paymentrequest4_cert2_BASE64 =
+"\
+Egt4NTA5K3NoYTI1NhrQBArNBDCCAkkwggExoAMCAQICAQEwDQYJKoZIhvcNAQEL\
+BQAwITEfMB0GA1UEAwwWUGF5bWVudFJlcXVlc3QgVGVzdCBDQTAeFw0xNTAxMTEx\
+ODIxMDhaFw0yNTAxMDgxODIxMDhaMCExHzAdBgNVBAMMFlBheW1lbnRSZXF1ZXN0\
+IFRlc3QgQ0EwgZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAMsZqzkzeBGo+i2N\
+mUak3Ciodr1V7S062VOy7N0OQYNDQHYkgDFAUET7cEb5VJaHPv5m3ppTBpU9xBcf\
+wbHHUt4VjA+mhRmYrl1khjvZM+X8kEqvWn20BtcM9R6r0yIYec8UERDDHBleL/P8\
+RkxEnVLjYTV9zigCXfMsgYb3EQShAgMBAAGjEDAOMAwGA1UdEwQFMAMBAf8wDQYJ\
+KoZIhvcNAQELBQADggEBABUJpl3QCqsoDSxAsQdV6zKT4VGV76AzoGj7etQsQY+r\
++S26VfWh/fMobEzuxFChr0USgLJ6FoK78hAtoZvt1lrye9yqFv/ig3WLWsJKWHHb\
+3RT6oR03CIwZXFSUasi08QDVLxafwsU5OMcPLucF3a1lRL1ccYrNgVCCx1+X7Bos\
+tIgDGRQQ4AyoHTcfVd2hEGeUv7k14mOxFsAp6851yosHq9Q2kwmdH+rHEJbjof87\
+yyKLagc4owyXBZYkQmkeHWCNqnuRmO5vUsfVb0UUrkD64o7Th/NjwooA7SCiUXl6\
+dfygT1b7ggpx7GC+sP2DsIM47IAZ55drjqX5u2f+Ba0iSwoEdGVzdBIgCICt4gQS\
+GXapFASsapRTBKxoykO9YhoackY1CqLyiKwYt+HZpQUggICAgICAgICAASoQVGVz\
+dGluZyB0ZXN0bmV0ISqAAXSQG8+GFA18VaKarlYrOz293rNMIub0swKGcQm8jAGX\
+HSLaRgHfUDeEPr4hydy4dtfu59KNwe2xsHOHu/SpO4L8SrA4Dm9A7SlNBVWdcLbw\
+d2hj739GDLz0b5KuJ2SG6VknMRQM976w/m2qlq0ccVGaaZ2zMIGfpzL3p6adwx/5\
+";
diff --git a/src/qt/test/paymentservertests.cpp b/src/qt/test/paymentservertests.cpp
index 84cab01c50..04935192c8 100644
--- a/src/qt/test/paymentservertests.cpp
+++ b/src/qt/test/paymentservertests.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -7,6 +7,7 @@
 #include "optionsmodel.h"
 #include "paymentrequestdata.h"
 
+#include "random.h"
 #include "util.h"
 #include "utilstrencodings.h"
 
@@ -64,38 +65,44 @@ void PaymentServerTests::paymentServerTests()
     OptionsModel optionsModel;
     PaymentServer* server = new PaymentServer(NULL, false);
     X509_STORE* caStore = X509_STORE_new();
-    X509_STORE_add_cert(caStore, parse_b64der_cert(caCert_BASE64));
+    X509_STORE_add_cert(caStore, parse_b64der_cert(caCert1_BASE64));
     PaymentServer::LoadRootCAs(caStore);
     server->setOptionsModel(&optionsModel);
     server->uiReady();
 
-    // Now feed PaymentRequests to server, and observe signals it produces:
-    std::vector<unsigned char> data = DecodeBase64(paymentrequest1_BASE64);
-    SendCoinsRecipient r = handleRequest(server, data);
+    std::vector<unsigned char> data;
+    SendCoinsRecipient r;
     QString merchant;
+
+    // Now feed PaymentRequests to server, and observe signals it produces
+
+    // This payment request validates directly against the
+    // caCert1 certificate authority:
+    data = DecodeBase64(paymentrequest1_cert1_BASE64);
+    r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString("testmerchant.org"));
 
-    // Version of the above, with an expired certificate:
-    data = DecodeBase64(paymentrequest2_BASE64);
+    // Signed, but expired, merchant cert in the request:
+    data = DecodeBase64(paymentrequest2_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
 
-    // Long certificate chain:
-    data = DecodeBase64(paymentrequest3_BASE64);
+    // 10-long certificate chain, all intermediates valid:
+    data = DecodeBase64(paymentrequest3_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString("testmerchant8.org"));
 
     // Long certificate chain, with an expired certificate in the middle:
-    data = DecodeBase64(paymentrequest4_BASE64);
+    data = DecodeBase64(paymentrequest4_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
 
     // Validly signed, but by a CA not in our root CA list:
-    data = DecodeBase64(paymentrequest5_BASE64);
+    data = DecodeBase64(paymentrequest5_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
@@ -103,11 +110,80 @@ void PaymentServerTests::paymentServerTests()
     // Try again with no root CA's, verifiedMerchant should be empty:
     caStore = X509_STORE_new();
     PaymentServer::LoadRootCAs(caStore);
-    data = DecodeBase64(paymentrequest1_BASE64);
+    data = DecodeBase64(paymentrequest1_cert1_BASE64);
     r = handleRequest(server, data);
     r.paymentRequest.getMerchant(caStore, merchant);
     QCOMPARE(merchant, QString(""));
 
+    // Load second root certificate
+    caStore = X509_STORE_new();
+    X509_STORE_add_cert(caStore, parse_b64der_cert(caCert2_BASE64));
+    PaymentServer::LoadRootCAs(caStore);
+
+    QByteArray byteArray;
+
+    // For the tests below we just need the payment request data from
+    // paymentrequestdata.h parsed + stored in r.paymentRequest.
+    //
+    // These tests require us to bypass the following normal client execution flow
+    // shown below to be able to explicitly just trigger a certain condition!
+    //
+    // handleRequest()
+    // -> PaymentServer::eventFilter()
+    //   -> PaymentServer::handleURIOrFile()
+    //     -> PaymentServer::readPaymentRequestFromFile()
+    //       -> PaymentServer::processPaymentRequest()
+
+    // Contains a testnet paytoaddress, so payment request network doesn't match client network:
+    data = DecodeBase64(paymentrequest1_cert2_BASE64);
+    byteArray = QByteArray((const char*)&data[0], data.size());
+    r.paymentRequest.parse(byteArray);
+    // Ensure the request is initialized, because network "main" is default, even for
+    // uninizialized payment requests and that will fail our test here.
+    QVERIFY(r.paymentRequest.IsInitialized());
+    QCOMPARE(PaymentServer::verifyNetwork(r.paymentRequest.getDetails()), false);
+
+    // Expired payment request (expires is set to 1 = 1970-01-01 00:00:01):
+    data = DecodeBase64(paymentrequest2_cert2_BASE64);
+    byteArray = QByteArray((const char*)&data[0], data.size());
+    r.paymentRequest.parse(byteArray);
+    // Ensure the request is initialized
+    QVERIFY(r.paymentRequest.IsInitialized());
+    // compares 1 < GetTime() == false (treated as expired payment request)
+    QCOMPARE(PaymentServer::verifyExpired(r.paymentRequest.getDetails()), true);
+
+    // Unexpired payment request (expires is set to 0x7FFFFFFFFFFFFFFF = max. int64_t):
+    // 9223372036854775807 (uint64), 9223372036854775807 (int64_t) and -1 (int32_t)
+    // -1 is 1969-12-31 23:59:59 (for a 32 bit time values)
+    data = DecodeBase64(paymentrequest3_cert2_BASE64);
+    byteArray = QByteArray((const char*)&data[0], data.size());
+    r.paymentRequest.parse(byteArray);
+    // Ensure the request is initialized
+    QVERIFY(r.paymentRequest.IsInitialized());
+    // compares 9223372036854775807 < GetTime() == false (treated as unexpired payment request)
+    QCOMPARE(PaymentServer::verifyExpired(r.paymentRequest.getDetails()), false);
+
+    // Unexpired payment request (expires is set to 0x8000000000000000 > max. int64_t, allowed uint64):
+    // 9223372036854775808 (uint64), -9223372036854775808 (int64_t) and 0 (int32_t)
+    // 0 is 1970-01-01 00:00:00 (for a 32 bit time values)
+    data = DecodeBase64(paymentrequest4_cert2_BASE64);
+    byteArray = QByteArray((const char*)&data[0], data.size());
+    r.paymentRequest.parse(byteArray);
+    // Ensure the request is initialized
+    QVERIFY(r.paymentRequest.IsInitialized());
+    // compares -9223372036854775808 < GetTime() == true (treated as expired payment request)
+    QCOMPARE(PaymentServer::verifyExpired(r.paymentRequest.getDetails()), true);
+
+    // Test BIP70 DoS protection:
+    unsigned char randData[BIP70_MAX_PAYMENTREQUEST_SIZE + 1];
+    GetRandBytes(randData, sizeof(randData));
+    // Write data to a temp file:
+    QTemporaryFile tempFile;
+    tempFile.open();
+    tempFile.write((const char*)randData, sizeof(randData));
+    tempFile.close();
+    QCOMPARE(PaymentServer::readPaymentRequestFromFile(tempFile.fileName(), r.paymentRequest), false);
+
     delete server;
 }
 
diff --git a/src/qt/test/paymentservertests.h b/src/qt/test/paymentservertests.h
index 0717111f66..c98bbf0833 100644
--- a/src/qt/test/paymentservertests.h
+++ b/src/qt/test/paymentservertests.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/qt/test/test_main.cpp b/src/qt/test/test_main.cpp
index f2161c2f79..da5f074390 100644
--- a/src/qt/test/test_main.cpp
+++ b/src/qt/test/test_main.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/qt/test/uritests.cpp b/src/qt/test/uritests.cpp
index 78a7b1b9b4..8b53c0d5c7 100644
--- a/src/qt/test/uritests.cpp
+++ b/src/qt/test/uritests.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/qt/test/uritests.h b/src/qt/test/uritests.h
index ed30a9f4a7..a0b7dc6c72 100644
--- a/src/qt/test/uritests.h
+++ b/src/qt/test/uritests.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/qt/trafficgraphwidget.cpp b/src/qt/trafficgraphwidget.cpp
index 5f14b80797..0b2eb9eaf2 100644
--- a/src/qt/trafficgraphwidget.cpp
+++ b/src/qt/trafficgraphwidget.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "trafficgraphwidget.h"
diff --git a/src/qt/trafficgraphwidget.h b/src/qt/trafficgraphwidget.h
index 50571e0b2d..4c6b17fe7e 100644
--- a/src/qt/trafficgraphwidget.h
+++ b/src/qt/trafficgraphwidget.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_TRAFFICGRAPHWIDGET_H
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
index 1efad8259b..68c275d494 100644
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "transactiondesc.h"
diff --git a/src/qt/transactiondesc.h b/src/qt/transactiondesc.h
index fc958a097c..5467348ee9 100644
--- a/src/qt/transactiondesc.h
+++ b/src/qt/transactiondesc.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_TRANSACTIONDESC_H
diff --git a/src/qt/transactiondescdialog.cpp b/src/qt/transactiondescdialog.cpp
index 5ca575fdd4..fadaa98f4a 100644
--- a/src/qt/transactiondescdialog.cpp
+++ b/src/qt/transactiondescdialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "transactiondescdialog.h"
diff --git a/src/qt/transactiondescdialog.h b/src/qt/transactiondescdialog.h
index c12c18e824..54374e359d 100644
--- a/src/qt/transactiondescdialog.h
+++ b/src/qt/transactiondescdialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_TRANSACTIONDESCDIALOG_H
diff --git a/src/qt/transactionfilterproxy.cpp b/src/qt/transactionfilterproxy.cpp
index 2a0f621d1e..7981eb7c91 100644
--- a/src/qt/transactionfilterproxy.cpp
+++ b/src/qt/transactionfilterproxy.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "transactionfilterproxy.h"
diff --git a/src/qt/transactionfilterproxy.h b/src/qt/transactionfilterproxy.h
index 5836b114ab..acea9a1e3b 100644
--- a/src/qt/transactionfilterproxy.h
+++ b/src/qt/transactionfilterproxy.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_TRANSACTIONFILTERPROXY_H
diff --git a/src/qt/transactionrecord.cpp b/src/qt/transactionrecord.cpp
index 5278c8673a..fea436806a 100644
--- a/src/qt/transactionrecord.cpp
+++ b/src/qt/transactionrecord.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "transactionrecord.h"
diff --git a/src/qt/transactionrecord.h b/src/qt/transactionrecord.h
index e26453cda4..a5bc375717 100644
--- a/src/qt/transactionrecord.h
+++ b/src/qt/transactionrecord.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_TRANSACTIONRECORD_H
diff --git a/src/qt/transactiontablemodel.cpp b/src/qt/transactiontablemodel.cpp
index 79cb4a6296..df1afbfaaa 100644
--- a/src/qt/transactiontablemodel.cpp
+++ b/src/qt/transactiontablemodel.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "transactiontablemodel.h"
@@ -8,6 +8,7 @@
 #include "guiconstants.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
+#include "scicon.h"
 #include "transactiondesc.h"
 #include "transactionrecord.h"
 #include "walletmodel.h"
@@ -93,7 +94,7 @@ public:
      */
     void updateWallet(const uint256 &hash, int status, bool showTransaction)
     {
-        qDebug() << "TransactionTablePriv::updateWallet : " + QString::fromStdString(hash.ToString()) + " " + QString::number(status);
+        qDebug() << "TransactionTablePriv::updateWallet: " + QString::fromStdString(hash.ToString()) + " " + QString::number(status);
 
         // Find bounds of this transaction in model
         QList<TransactionRecord>::iterator lower = qLowerBound(
@@ -121,7 +122,7 @@ public:
         case CT_NEW:
             if(inModel)
             {
-                qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is already in model";
+                qWarning() << "TransactionTablePriv::updateWallet: Warning: Got CT_NEW, but transaction is already in model";
                 break;
             }
             if(showTransaction)
@@ -131,7 +132,7 @@ public:
                 std::map<uint256, CWalletTx>::iterator mi = wallet->mapWallet.find(hash);
                 if(mi == wallet->mapWallet.end())
                 {
-                    qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_NEW, but transaction is not in wallet";
+                    qWarning() << "TransactionTablePriv::updateWallet: Warning: Got CT_NEW, but transaction is not in wallet";
                     break;
                 }
                 // Added -- insert at the right position
@@ -153,7 +154,7 @@ public:
         case CT_DELETED:
             if(!inModel)
             {
-                qWarning() << "TransactionTablePriv::updateWallet : Warning: Got CT_DELETED, but transaction is not in model";
+                qWarning() << "TransactionTablePriv::updateWallet: Warning: Got CT_DELETED, but transaction is not in model";
                 break;
             }
             // Removed -- remove entire transaction from table
@@ -504,7 +505,7 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
 
     switch(role)
     {
-    case Qt::DecorationRole:
+    case RawDecorationRole:
         switch(index.column())
         {
         case Status:
@@ -515,6 +516,11 @@ QVariant TransactionTableModel::data(const QModelIndex &index, int role) const
             return txAddressDecoration(rec);
         }
         break;
+    case Qt::DecorationRole:
+    {
+        QIcon icon = qvariant_cast<QIcon>(index.data(RawDecorationRole));
+        return TextColorIcon(icon);
+    }
     case Qt::DisplayRole:
         switch(index.column())
         {
@@ -658,7 +664,7 @@ public:
     void invoke(QObject *ttm)
     {
         QString strHash = QString::fromStdString(hash.GetHex());
-        qDebug() << "NotifyTransactionChanged : " + strHash + " status= " + QString::number(status);
+        qDebug() << "NotifyTransactionChanged: " + strHash + " status= " + QString::number(status);
         QMetaObject::invokeMethod(ttm, "updateTransaction", Qt::QueuedConnection,
                                   Q_ARG(QString, strHash),
                                   Q_ARG(int, status),
diff --git a/src/qt/transactiontablemodel.h b/src/qt/transactiontablemodel.h
index cfefe4cf19..30a15df9e6 100644
--- a/src/qt/transactiontablemodel.h
+++ b/src/qt/transactiontablemodel.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_TRANSACTIONTABLEMODEL_H
@@ -64,7 +64,9 @@ public:
         /** Formatted amount, without brackets when unconfirmed */
         FormattedAmountRole,
         /** Transaction status (TransactionRecord::Status) */
-        StatusRole
+        StatusRole,
+        /** Unprocessed icon */
+        RawDecorationRole,
     };
 
     int rowCount(const QModelIndex &parent) const;
diff --git a/src/qt/transactionview.cpp b/src/qt/transactionview.cpp
index d153973872..526940632e 100644
--- a/src/qt/transactionview.cpp
+++ b/src/qt/transactionview.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "transactionview.h"
@@ -10,6 +10,7 @@
 #include "editaddressdialog.h"
 #include "guiutil.h"
 #include "optionsmodel.h"
+#include "scicon.h"
 #include "transactiondescdialog.h"
 #include "transactionfilterproxy.h"
 #include "transactionrecord.h"
@@ -54,8 +55,8 @@ TransactionView::TransactionView(QWidget *parent) :
     watchOnlyWidget = new QComboBox(this);
     watchOnlyWidget->setFixedWidth(24);
     watchOnlyWidget->addItem("", TransactionFilterProxy::WatchOnlyFilter_All);
-    watchOnlyWidget->addItem(QIcon(":/icons/eye_plus"), "", TransactionFilterProxy::WatchOnlyFilter_Yes);
-    watchOnlyWidget->addItem(QIcon(":/icons/eye_minus"), "", TransactionFilterProxy::WatchOnlyFilter_No);
+    watchOnlyWidget->addItem(SingleColorIcon(":/icons/eye_plus"), "", TransactionFilterProxy::WatchOnlyFilter_Yes);
+    watchOnlyWidget->addItem(SingleColorIcon(":/icons/eye_minus"), "", TransactionFilterProxy::WatchOnlyFilter_No);
     hlayout->addWidget(watchOnlyWidget);
 
     dateWidget = new QComboBox(this);
diff --git a/src/qt/transactionview.h b/src/qt/transactionview.h
index be6989adee..092d919042 100644
--- a/src/qt/transactionview.h
+++ b/src/qt/transactionview.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_TRANSACTIONVIEW_H
@@ -49,10 +49,10 @@ public:
     };
 
     enum ColumnWidths {
-        STATUS_COLUMN_WIDTH = 23,
+        STATUS_COLUMN_WIDTH = 30,
         WATCHONLY_COLUMN_WIDTH = 23,
         DATE_COLUMN_WIDTH = 120,
-        TYPE_COLUMN_WIDTH = 120,
+        TYPE_COLUMN_WIDTH = 113,
         AMOUNT_MINIMUM_COLUMN_WIDTH = 120,
         MINIMUM_COLUMN_WIDTH = 23
     };
diff --git a/src/qt/utilitydialog.cpp b/src/qt/utilitydialog.cpp
index 58bf040624..4ef42b927e 100644
--- a/src/qt/utilitydialog.cpp
+++ b/src/qt/utilitydialog.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "utilitydialog.h"
@@ -12,12 +12,15 @@
 
 #include "clientversion.h"
 #include "init.h"
+#include "util.h"
 
 #include <stdio.h>
 
 #include <QCloseEvent>
 #include <QLabel>
 #include <QRegExp>
+#include <QTextTable>
+#include <QTextCursor>
 #include <QVBoxLayout>
 
 /** "Help message" or "About" dialog box */
@@ -52,28 +55,88 @@ HelpMessageDialog::HelpMessageDialog(QWidget *parent, bool about) :
         // Replace newlines with HTML breaks
         licenseInfoHTML.replace("\n\n", "<br><br>");
 
-        ui->helpMessageLabel->setTextFormat(Qt::RichText);
+        ui->aboutMessage->setTextFormat(Qt::RichText);
         ui->scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
         text = version + "\n" + licenseInfo;
-        ui->helpMessageLabel->setText(version + "<br><br>" + licenseInfoHTML);
-        ui->helpMessageLabel->setWordWrap(true);
+        ui->aboutMessage->setText(version + "<br><br>" + licenseInfoHTML);
+        ui->aboutMessage->setWordWrap(true);
+        ui->helpMessage->setVisible(false);
     } else {
         setWindowTitle(tr("Command-line options"));
-        QString header = tr("Usage:") + "\n" +
-            "  bitcoin-qt [" + tr("command-line options") + "]                     " + "\n";
+        QTextCursor cursor(ui->helpMessage->document());
+        cursor.insertText(version);
+        cursor.insertBlock();
+        cursor.insertText(tr("Usage:") + '\n' +
+            "  bitcoin-qt [" + tr("command-line options") + "]\n");
+
+        cursor.insertBlock();
+        QTextTableFormat tf;
+        tf.setBorderStyle(QTextFrameFormat::BorderStyle_None);
+        tf.setCellPadding(2);
+        QVector<QTextLength> widths;
+        widths << QTextLength(QTextLength::PercentageLength, 35);
+        widths << QTextLength(QTextLength::PercentageLength, 65);
+        tf.setColumnWidthConstraints(widths);
+        QTextTable *table = cursor.insertTable(2, 2, tf);
 
         QString coreOptions = QString::fromStdString(HelpMessage(HMM_BITCOIN_QT));
-
-        QString uiOptions = tr("UI options") + ":\n" +
-            "  -choosedatadir            " + tr("Choose data directory on startup (default: 0)") + "\n" +
-            "  -lang=<lang>              " + tr("Set language, for example \"de_DE\" (default: system locale)") + "\n" +
-            "  -min                      " + tr("Start minimized") + "\n" +
-            "  -rootcertificates=<file>  " + tr("Set SSL root certificates for payment request (default: -system-)") + "\n" +
-            "  -splash                   " + tr("Show splash screen on startup (default: 1)");
-
-        ui->helpMessageLabel->setFont(GUIUtil::bitcoinAddressFont());
-        text = version + "\n" + header + "\n" + coreOptions + "\n" + uiOptions;
-        ui->helpMessageLabel->setText(text);
+        bool first = true;
+        QTextCharFormat bold;
+        bold.setFontWeight(QFont::Bold);
+        // note that coreOptions is not translated.
+        foreach (const QString &line, coreOptions.split('\n')) {
+            if (!first) {
+                table->appendRows(1);
+                cursor.movePosition(QTextCursor::NextRow);
+            }
+            first = false;
+
+            if (line.startsWith("  ")) {
+                int index = line.indexOf(' ', 3);
+                if (index > 0) {
+                    cursor.insertText(line.left(index).trimmed());
+                    cursor.movePosition(QTextCursor::NextCell);
+                    cursor.insertText(line.mid(index).trimmed());
+                    continue;
+                }
+            }
+            cursor.movePosition(QTextCursor::NextCell, QTextCursor::KeepAnchor);
+            table->mergeCells(cursor);
+            cursor.insertText(line.trimmed(), bold);
+        }
+
+        table->appendRows(6);
+        cursor.movePosition(QTextCursor::NextRow);
+        cursor.insertText(tr("UI options") + ":", bold);
+        cursor.movePosition(QTextCursor::NextRow);
+        if (GetBoolArg("-help-debug", false)) {
+            cursor.insertText("-allowselfsignedrootcertificates");
+            cursor.movePosition(QTextCursor::NextCell);
+            cursor.insertText(tr("Allow self signed root certificates (default: 0)"));
+            cursor.movePosition(QTextCursor::NextCell);
+        }
+        cursor.insertText("-choosedatadir");
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText(tr("Choose data directory on startup (default: 0)"));
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText("-lang=<lang>");
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText(tr("Set language, for example \"de_DE\" (default: system locale)"));
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText("-min");
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText(tr("Start minimized"));
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText("-rootcertificates=<file>");
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText(tr("Set SSL root certificates for payment request (default: -system-)"));
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText("-splash");
+        cursor.movePosition(QTextCursor::NextCell);
+        cursor.insertText(tr("Show splash screen on startup (default: 1)"));
+
+        ui->helpMessage->moveCursor(QTextCursor::Start);
+        ui->scrollArea->setVisible(false);
     }
 }
 
diff --git a/src/qt/utilitydialog.h b/src/qt/utilitydialog.h
index e10b4dc8af..288b985f13 100644
--- a/src/qt/utilitydialog.h
+++ b/src/qt/utilitydialog.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_UTILITYDIALOG_H
diff --git a/src/qt/walletframe.cpp b/src/qt/walletframe.cpp
index fead022928..892947bf3a 100644
--- a/src/qt/walletframe.cpp
+++ b/src/qt/walletframe.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletframe.h"
diff --git a/src/qt/walletframe.h b/src/qt/walletframe.h
index ae8592840d..eea97defc9 100644
--- a/src/qt/walletframe.h
+++ b/src/qt/walletframe.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_WALLETFRAME_H
diff --git a/src/qt/walletmodel.cpp b/src/qt/walletmodel.cpp
index b20465794d..79f5191fc0 100644
--- a/src/qt/walletmodel.cpp
+++ b/src/qt/walletmodel.cpp
@@ -1,11 +1,12 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletmodel.h"
 
 #include "addresstablemodel.h"
 #include "guiconstants.h"
+#include "paymentserver.h"
 #include "recentrequeststablemodel.h"
 #include "transactiontablemodel.h"
 
@@ -278,9 +279,9 @@ WalletModel::SendCoinsReturn WalletModel::prepareTransaction(WalletModelTransact
             return TransactionCreationFailed;
         }
 
-        // reject insane fee > 0.1 bitcoin
+        // reject absurdly high fee > 0.1 bitcoin
         if (nFeeRequired > 10000000)
-            return InsaneFee;
+            return AbsurdFee;
     }
 
     return SendCoinsReturn(OK);
@@ -294,11 +295,16 @@ WalletModel::SendCoinsReturn WalletModel::sendCoins(WalletModelTransaction &tran
         LOCK2(cs_main, wallet->cs_wallet);
         CWalletTx *newTx = transaction.getTransaction();
 
-        // Store PaymentRequests in wtx.vOrderForm in wallet.
         foreach(const SendCoinsRecipient &rcp, transaction.getRecipients())
         {
             if (rcp.paymentRequest.IsInitialized())
             {
+                // Make sure any payment requests involved are still valid.
+                if (PaymentServer::verifyExpired(rcp.paymentRequest.getDetails())) {
+                    return PaymentRequestExpired;
+                }
+
+                // Store PaymentRequests in wtx.vOrderForm in wallet.
                 std::string key("PaymentRequest");
                 std::string value;
                 rcp.paymentRequest.SerializeToString(&value);
@@ -446,7 +452,7 @@ static void NotifyAddressBookChanged(WalletModel *walletmodel, CWallet *wallet,
     QString strLabel = QString::fromStdString(label);
     QString strPurpose = QString::fromStdString(purpose);
 
-    qDebug() << "NotifyAddressBookChanged : " + strAddress + " " + strLabel + " isMine=" + QString::number(isMine) + " purpose=" + strPurpose + " status=" + QString::number(status);
+    qDebug() << "NotifyAddressBookChanged: " + strAddress + " " + strLabel + " isMine=" + QString::number(isMine) + " purpose=" + strPurpose + " status=" + QString::number(status);
     QMetaObject::invokeMethod(walletmodel, "updateAddressBook", Qt::QueuedConnection,
                               Q_ARG(QString, strAddress),
                               Q_ARG(QString, strLabel),
diff --git a/src/qt/walletmodel.h b/src/qt/walletmodel.h
index d7e391f8d1..4a9a12beaa 100644
--- a/src/qt/walletmodel.h
+++ b/src/qt/walletmodel.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_WALLETMODEL_H
@@ -40,7 +40,7 @@ public:
     explicit SendCoinsRecipient(const QString &addr, const QString &label, const CAmount& amount, const QString &message):
         address(addr), label(label), amount(amount), message(message), nVersion(SendCoinsRecipient::CURRENT_VERSION) {}
 
-    // If from an insecure payment request, this is used for storing
+    // If from an unauthenticated payment request, this is used for storing
     // the addresses, e.g. address-A<br />address-B<br />address-C.
     // Info: As we don't need to process addresses in here when using
     // payment requests, we can abuse it for displaying an address list.
@@ -111,7 +111,8 @@ public:
         DuplicateAddress,
         TransactionCreationFailed, // Error returned when wallet is still locked
         TransactionCommitFailed,
-        InsaneFee
+        AbsurdFee,
+        PaymentRequestExpired
     };
 
     enum EncryptionStatus
diff --git a/src/qt/walletmodeltransaction.cpp b/src/qt/walletmodeltransaction.cpp
index e9e20c7d51..8f32e46148 100644
--- a/src/qt/walletmodeltransaction.cpp
+++ b/src/qt/walletmodeltransaction.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletmodeltransaction.h"
diff --git a/src/qt/walletmodeltransaction.h b/src/qt/walletmodeltransaction.h
index 4272529abe..b6bb6d67f6 100644
--- a/src/qt/walletmodeltransaction.h
+++ b/src/qt/walletmodeltransaction.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_WALLETMODELTRANSACTION_H
diff --git a/src/qt/walletview.cpp b/src/qt/walletview.cpp
index 9bab180108..9d6a060194 100644
--- a/src/qt/walletview.cpp
+++ b/src/qt/walletview.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletview.h"
@@ -12,6 +12,7 @@
 #include "optionsmodel.h"
 #include "overviewpage.h"
 #include "receivecoinsdialog.h"
+#include "scicon.h"
 #include "sendcoinsdialog.h"
 #include "signverifymessagedialog.h"
 #include "transactiontablemodel.h"
@@ -44,7 +45,7 @@ WalletView::WalletView(QWidget *parent):
     QPushButton *exportButton = new QPushButton(tr("&Export"), this);
     exportButton->setToolTip(tr("Export the data in the current tab to a file"));
 #ifndef Q_OS_MAC // Icons on push buttons are very uncommon on Mac
-    exportButton->setIcon(QIcon(":/icons/export"));
+    exportButton->setIcon(SingleColorIcon(":/icons/export"));
 #endif
     hbox_buttons->addStretch();
     hbox_buttons->addWidget(exportButton);
diff --git a/src/qt/walletview.h b/src/qt/walletview.h
index 95890ccd67..f3d14c065c 100644
--- a/src/qt/walletview.h
+++ b/src/qt/walletview.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_WALLETVIEW_H
diff --git a/src/qt/winshutdownmonitor.cpp b/src/qt/winshutdownmonitor.cpp
index a06f42f66e..1bc4f77959 100644
--- a/src/qt/winshutdownmonitor.cpp
+++ b/src/qt/winshutdownmonitor.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "winshutdownmonitor.h"
diff --git a/src/qt/winshutdownmonitor.h b/src/qt/winshutdownmonitor.h
index 26f5d80361..0bed55a2c6 100644
--- a/src/qt/winshutdownmonitor.h
+++ b/src/qt/winshutdownmonitor.h
@@ -1,5 +1,5 @@
-// Copyright (c) 2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_QT_WINSHUTDOWNMONITOR_H
diff --git a/src/random.cpp b/src/random.cpp
index fc9505ae73..663456e962 100644
--- a/src/random.cpp
+++ b/src/random.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "random.h"
diff --git a/src/random.h b/src/random.h
index aa55ca2b6f..1a2d3e8ee2 100644
--- a/src/random.h
+++ b/src/random.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_RANDOM_H
diff --git a/src/rest.cpp b/src/rest.cpp
index 6285784af5..1ee1d52912 100644
--- a/src/rest.cpp
+++ b/src/rest.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -42,7 +42,7 @@ public:
 };
 
 extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry);
-extern Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex);
+extern Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false);
 
 static RestErr RESTERR(enum HTTPStatusCode status, string message)
 {
@@ -89,10 +89,74 @@ static bool ParseHashStr(const string& strReq, uint256& v)
     return true;
 }
 
+static bool rest_headers(AcceptedConnection* conn,
+                         const std::string& strReq,
+                         const std::map<std::string, std::string>& mapHeaders,
+                         bool fRun)
+{
+    vector<string> params;
+    enum RetFormat rf = ParseDataFormat(params, strReq);
+    vector<string> path;
+    boost::split(path, params[0], boost::is_any_of("/"));
+
+    if (path.size() != 2)
+        throw RESTERR(HTTP_BAD_REQUEST, "No header count specified. Use /rest/headers/<count>/<hash>.<ext>.");
+
+    long count = strtol(path[0].c_str(), NULL, 10);
+    if (count < 1 || count > 2000)
+        throw RESTERR(HTTP_BAD_REQUEST, "Header count out of range: " + path[0]);
+
+    string hashStr = path[1];
+    uint256 hash;
+    if (!ParseHashStr(hashStr, hash))
+        throw RESTERR(HTTP_BAD_REQUEST, "Invalid hash: " + hashStr);
+
+    std::vector<CBlockHeader> headers;
+    headers.reserve(count);
+    {
+        LOCK(cs_main);
+        BlockMap::const_iterator it = mapBlockIndex.find(hash);
+        const CBlockIndex *pindex = (it != mapBlockIndex.end()) ? it->second : NULL;
+        while (pindex != NULL && chainActive.Contains(pindex)) {
+            headers.push_back(pindex->GetBlockHeader());
+            if (headers.size() == (unsigned long)count)
+                break;
+            pindex = chainActive.Next(pindex);
+        }
+    }
+
+    CDataStream ssHeader(SER_NETWORK, PROTOCOL_VERSION);
+    BOOST_FOREACH(const CBlockHeader &header, headers) {
+        ssHeader << header;
+    }
+
+    switch (rf) {
+    case RF_BINARY: {
+        string binaryHeader = ssHeader.str();
+        conn->stream() << HTTPReplyHeader(HTTP_OK, fRun, binaryHeader.size(), "application/octet-stream") << binaryHeader << std::flush;
+        return true;
+    }
+
+    case RF_HEX: {
+        string strHex = HexStr(ssHeader.begin(), ssHeader.end()) + "\n";
+        conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush;
+        return true;
+    }
+
+    default: {
+        throw RESTERR(HTTP_NOT_FOUND, "output format not found (available: .bin, .hex)");
+    }
+    }
+
+    // not reached
+    return true; // continue to process further HTTP reqs on this cxn
+}
+
 static bool rest_block(AcceptedConnection* conn,
-                       string& strReq,
-                       map<string, string>& mapHeaders,
-                       bool fRun)
+                       const std::string& strReq,
+                       const std::map<std::string, std::string>& mapHeaders,
+                       bool fRun,
+                       bool showTxDetails)
 {
     vector<string> params;
     enum RetFormat rf = ParseDataFormat(params, strReq);
@@ -131,7 +195,7 @@ static bool rest_block(AcceptedConnection* conn,
     }
 
     case RF_JSON: {
-        Object objBlock = blockToJSON(block, pblockindex);
+        Object objBlock = blockToJSON(block, pblockindex, showTxDetails);
         string strJSON = write_string(Value(objBlock), false) + "\n";
         conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
         return true;
@@ -146,9 +210,25 @@ static bool rest_block(AcceptedConnection* conn,
     return true; // continue to process further HTTP reqs on this cxn
 }
 
+static bool rest_block_extended(AcceptedConnection* conn,
+                       const std::string& strReq,
+                       const std::map<std::string, std::string>& mapHeaders,
+                       bool fRun)
+{
+    return rest_block(conn, strReq, mapHeaders, fRun, true);
+}
+
+static bool rest_block_notxdetails(AcceptedConnection* conn,
+                       const std::string& strReq,
+                       const std::map<std::string, std::string>& mapHeaders,
+                       bool fRun)
+{
+    return rest_block(conn, strReq, mapHeaders, fRun, false);
+}
+
 static bool rest_tx(AcceptedConnection* conn,
-                    string& strReq,
-                    map<string, string>& mapHeaders,
+                    const std::string& strReq,
+                    const std::map<std::string, std::string>& mapHeaders,
                     bool fRun)
 {
     vector<string> params;
@@ -160,7 +240,7 @@ static bool rest_tx(AcceptedConnection* conn,
         throw RESTERR(HTTP_BAD_REQUEST, "Invalid hash: " + hashStr);
 
     CTransaction tx;
-    uint256 hashBlock = 0;
+    uint256 hashBlock = uint256();
     if (!GetTransaction(hash, tx, hashBlock, true))
         throw RESTERR(HTTP_NOT_FOUND, hashStr + " not found");
 
@@ -200,17 +280,19 @@ static bool rest_tx(AcceptedConnection* conn,
 static const struct {
     const char* prefix;
     bool (*handler)(AcceptedConnection* conn,
-                    string& strURI,
-                    map<string, string>& mapHeaders,
+                    const std::string& strURI,
+                    const std::map<std::string, std::string>& mapHeaders,
                     bool fRun);
 } uri_prefixes[] = {
       {"/rest/tx/", rest_tx},
-      {"/rest/block/", rest_block},
+      {"/rest/block/notxdetails/", rest_block_notxdetails},
+      {"/rest/block/", rest_block_extended},
+      {"/rest/headers/", rest_headers},
 };
 
 bool HTTPReq_REST(AcceptedConnection* conn,
-                  string& strURI,
-                  map<string, string>& mapHeaders,
+                  const std::string& strURI,
+                  const std::map<std::string, std::string>& mapHeaders,
                   bool fRun)
 {
     try {
@@ -225,7 +307,7 @@ bool HTTPReq_REST(AcceptedConnection* conn,
                 return uri_prefixes[i].handler(conn, strReq, mapHeaders, fRun);
             }
         }
-    } catch (RestErr& re) {
+    } catch (const RestErr& re) {
         conn->stream() << HTTPReply(re.status, re.message + "\r\n", false, false, "text/plain") << std::flush;
         return false;
     }
diff --git a/src/rpcblockchain.cpp b/src/rpcblockchain.cpp
index 924f416904..293d6d5619 100644
--- a/src/rpcblockchain.cpp
+++ b/src/rpcblockchain.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -16,6 +16,7 @@
 using namespace json_spirit;
 using namespace std;
 
+extern void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry);
 void ScriptPubKeyToJSON(const CScript& scriptPubKey, Object& out, bool fIncludeHex);
 
 double GetDifficulty(const CBlockIndex* blockindex)
@@ -50,7 +51,7 @@ double GetDifficulty(const CBlockIndex* blockindex)
 }
 
 
-Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex)
+Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex, bool txDetails = false)
 {
     Object result;
     result.push_back(Pair("hash", block.GetHash().GetHex()));
@@ -65,7 +66,16 @@ Object blockToJSON(const CBlock& block, const CBlockIndex* blockindex)
     result.push_back(Pair("merkleroot", block.hashMerkleRoot.GetHex()));
     Array txs;
     BOOST_FOREACH(const CTransaction&tx, block.vtx)
-        txs.push_back(tx.GetHash().GetHex());
+    {
+        if(txDetails)
+        {
+            Object objTx;
+            TxToJSON(tx, uint256(), objTx);
+            txs.push_back(objTx);
+        }
+        else
+            txs.push_back(tx.GetHash().GetHex());
+    }
     result.push_back(Pair("tx", txs));
     result.push_back(Pair("time", block.GetBlockTime()));
     result.push_back(Pair("nonce", (uint64_t)block.nNonce));
@@ -95,6 +105,7 @@ Value getblockcount(const Array& params, bool fHelp)
             + HelpExampleRpc("getblockcount", "")
         );
 
+    LOCK(cs_main);
     return chainActive.Height();
 }
 
@@ -111,6 +122,7 @@ Value getbestblockhash(const Array& params, bool fHelp)
             + HelpExampleRpc("getbestblockhash", "")
         );
 
+    LOCK(cs_main);
     return chainActive.Tip()->GetBlockHash().GetHex();
 }
 
@@ -127,6 +139,7 @@ Value getdifficulty(const Array& params, bool fHelp)
             + HelpExampleRpc("getdifficulty", "")
         );
 
+    LOCK(cs_main);
     return GetDifficulty();
 }
 
@@ -163,6 +176,8 @@ Value getrawmempool(const Array& params, bool fHelp)
             + HelpExampleRpc("getrawmempool", "true")
         );
 
+    LOCK(cs_main);
+
     bool fVerbose = false;
     if (params.size() > 0)
         fVerbose = params[0].get_bool();
@@ -223,6 +238,8 @@ Value getblockhash(const Array& params, bool fHelp)
             + HelpExampleRpc("getblockhash", "1000")
         );
 
+    LOCK(cs_main);
+
     int nHeight = params[0].get_int();
     if (nHeight < 0 || nHeight > chainActive.Height())
         throw JSONRPCError(RPC_INVALID_PARAMETER, "Block height out of range");
@@ -267,8 +284,10 @@ Value getblock(const Array& params, bool fHelp)
             + HelpExampleRpc("getblock", "\"00000000c937983704a73af28acdec37b049d214adbda81d7e2a3dd146f6ed09\"")
         );
 
+    LOCK(cs_main);
+
     std::string strHash = params[0].get_str();
-    uint256 hash(strHash);
+    uint256 hash(uint256S(strHash));
 
     bool fVerbose = true;
     if (params.size() > 1)
@@ -316,6 +335,8 @@ Value gettxoutsetinfo(const Array& params, bool fHelp)
             + HelpExampleRpc("gettxoutsetinfo", "")
         );
 
+    LOCK(cs_main);
+
     Object ret;
 
     CCoinsStats stats;
@@ -370,10 +391,12 @@ Value gettxout(const Array& params, bool fHelp)
             + HelpExampleRpc("gettxout", "\"txid\", 1")
         );
 
+    LOCK(cs_main);
+
     Object ret;
 
     std::string strHash = params[0].get_str();
-    uint256 hash(strHash);
+    uint256 hash(uint256S(strHash));
     int n = params[1].get_int();
     bool fMempool = true;
     if (params.size() > 2)
@@ -426,6 +449,8 @@ Value verifychain(const Array& params, bool fHelp)
             + HelpExampleRpc("verifychain", "")
         );
 
+    LOCK(cs_main);
+
     int nCheckLevel = GetArg("-checklevel", 3);
     int nCheckDepth = GetArg("-checkblocks", 288);
     if (params.size() > 0)
@@ -457,6 +482,8 @@ Value getblockchaininfo(const Array& params, bool fHelp)
             + HelpExampleRpc("getblockchaininfo", "")
         );
 
+    LOCK(cs_main);
+
     Object obj;
     obj.push_back(Pair("chain",                 Params().NetworkIDString()));
     obj.push_back(Pair("blocks",                (int)chainActive.Height()));
@@ -516,6 +543,8 @@ Value getchaintips(const Array& params, bool fHelp)
             + HelpExampleRpc("getchaintips", "")
         );
 
+    LOCK(cs_main);
+
     /* Build up a list of chain tips.  We start with the list of all
        known blocks, and successively remove blocks that appear as pprev
        of another block.  */
@@ -609,7 +638,7 @@ Value invalidateblock(const Array& params, bool fHelp)
         );
 
     std::string strHash = params[0].get_str();
-    uint256 hash(strHash);
+    uint256 hash(uint256S(strHash));
     CValidationState state;
 
     {
@@ -648,7 +677,7 @@ Value reconsiderblock(const Array& params, bool fHelp)
         );
 
     std::string strHash = params[0].get_str();
-    uint256 hash(strHash);
+    uint256 hash(uint256S(strHash));
     CValidationState state;
 
     {
diff --git a/src/rpcclient.cpp b/src/rpcclient.cpp
index 03ce9acbbf..4e45bc32ab 100644
--- a/src/rpcclient.cpp
+++ b/src/rpcclient.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/rpcclient.h b/src/rpcclient.h
index a91c2eb033..42fa2d06fe 100644
--- a/src/rpcclient.h
+++ b/src/rpcclient.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/rpcdump.cpp b/src/rpcdump.cpp
index 8b95373cff..b9c92a06c5 100644
--- a/src/rpcdump.cpp
+++ b/src/rpcdump.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -91,6 +91,8 @@ Value importprivkey(const Array& params, bool fHelp)
             + HelpExampleRpc("importprivkey", "\"mykey\", \"testing\", false")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     EnsureWalletIsUnlocked();
 
     string strSecret = params[0].get_str();
@@ -158,6 +160,8 @@ Value importaddress(const Array& params, bool fHelp)
             + HelpExampleRpc("importaddress", "\"myaddress\", \"testing\", false")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     CScript script;
 
     CBitcoinAddress address(params[0].get_str());
@@ -223,6 +227,8 @@ Value importwallet(const Array& params, bool fHelp)
             + HelpExampleRpc("importwallet", "\"test\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     EnsureWalletIsUnlocked();
 
     ifstream file;
@@ -322,6 +328,8 @@ Value dumpprivkey(const Array& params, bool fHelp)
             + HelpExampleRpc("dumpprivkey", "\"myaddress\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     EnsureWalletIsUnlocked();
 
     string strAddress = params[0].get_str();
@@ -351,6 +359,8 @@ Value dumpwallet(const Array& params, bool fHelp)
             + HelpExampleRpc("dumpwallet", "\"test\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     EnsureWalletIsUnlocked();
 
     ofstream file;
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index 837a7593b6..369b3fb4d7 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -64,7 +64,7 @@ Value GetNetworkHashPS(int lookup, int height) {
     if (minTime == maxTime)
         return 0;
 
-    uint256 workDiff = pb->nChainWork - pb0->nChainWork;
+    arith_uint256 workDiff = pb->nChainWork - pb0->nChainWork;
     int64_t timeDiff = maxTime - minTime;
 
     return (int64_t)(workDiff.getdouble() / timeDiff);
@@ -88,6 +88,7 @@ Value getnetworkhashps(const Array& params, bool fHelp)
             + HelpExampleRpc("getnetworkhashps", "")
        );
 
+    LOCK(cs_main);
     return GetNetworkHashPS(params.size() > 0 ? params[0].get_int() : 120, params.size() > 1 ? params[1].get_int() : -1);
 }
 
@@ -107,6 +108,7 @@ Value getgenerate(const Array& params, bool fHelp)
             + HelpExampleRpc("getgenerate", "")
         );
 
+    LOCK(cs_main);
     return GetBoolArg("-gen", false);
 }
 
@@ -200,25 +202,6 @@ Value setgenerate(const Array& params, bool fHelp)
 
     return Value::null;
 }
-
-Value gethashespersec(const Array& params, bool fHelp)
-{
-    if (fHelp || params.size() != 0)
-        throw runtime_error(
-            "gethashespersec\n"
-            "\nReturns a recent hashes per second performance measurement while generating.\n"
-            "See the getgenerate and setgenerate calls to turn generation on and off.\n"
-            "\nResult:\n"
-            "n            (numeric) The recent hashes per second when generation is on (will return 0 if generation is off)\n"
-            "\nExamples:\n"
-            + HelpExampleCli("gethashespersec", "")
-            + HelpExampleRpc("gethashespersec", "")
-        );
-
-    if (GetTimeMillis() - nHPSTimerStart > 8000)
-        return (int64_t)0;
-    return (int64_t)dHashesPerSec;
-}
 #endif
 
 
@@ -237,7 +220,6 @@ Value getmininginfo(const Array& params, bool fHelp)
             "  \"errors\": \"...\"          (string) Current errors\n"
             "  \"generate\": true|false     (boolean) If the generation is on or off (see getgenerate or setgenerate calls)\n"
             "  \"genproclimit\": n          (numeric) The processor limit for generation. -1 if no generation. (see getgenerate or setgenerate calls)\n"
-            "  \"hashespersec\": n          (numeric) The hashes per second of the generation, or 0 if no generation.\n"
             "  \"pooledtx\": n              (numeric) The size of the mem pool\n"
             "  \"testnet\": true|false      (boolean) If using testnet or not\n"
             "  \"chain\": \"xxxx\",         (string) current network name as defined in BIP70 (main, test, regtest)\n"
@@ -247,6 +229,9 @@ Value getmininginfo(const Array& params, bool fHelp)
             + HelpExampleRpc("getmininginfo", "")
         );
 
+
+    LOCK(cs_main);
+
     Object obj;
     obj.push_back(Pair("blocks",           (int)chainActive.Height()));
     obj.push_back(Pair("currentblocksize", (uint64_t)nLastBlockSize));
@@ -260,12 +245,12 @@ Value getmininginfo(const Array& params, bool fHelp)
     obj.push_back(Pair("chain",            Params().NetworkIDString()));
 #ifdef ENABLE_WALLET
     obj.push_back(Pair("generate",         getgenerate(params, false)));
-    obj.push_back(Pair("hashespersec",     gethashespersec(params, false)));
 #endif
     return obj;
 }
 
 
+// NOTE: Unlike wallet RPC (which use BTC values), mining RPCs follow GBT (BIP 22) in using satoshi amounts
 Value prioritisetransaction(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() != 3)
@@ -277,22 +262,20 @@ Value prioritisetransaction(const Array& params, bool fHelp)
             "2. priority delta (numeric, required) The priority to add or subtract.\n"
             "                  The transaction selection algorithm considers the tx as it would have a higher priority.\n"
             "                  (priority of a transaction is calculated: coinage * value_in_satoshis / txsize) \n"
-            "3. fee delta      (numeric, required) The absolute fee value to add or subtract in bitcoin.\n"
+            "3. fee delta      (numeric, required) The fee value (in satoshis) to add (or subtract, if negative).\n"
             "                  The fee is not actually paid, only the algorithm for selecting transactions into a block\n"
             "                  considers the transaction as it would have paid a higher (or lower) fee.\n"
             "\nResult\n"
             "true              (boolean) Returns true\n"
             "\nExamples:\n"
-            + HelpExampleCli("prioritisetransaction", "\"txid\" 0.0 0.00010000")
-            + HelpExampleRpc("prioritisetransaction", "\"txid\", 0.0, 0.00010000")
+            + HelpExampleCli("prioritisetransaction", "\"txid\" 0.0 10000")
+            + HelpExampleRpc("prioritisetransaction", "\"txid\", 0.0, 10000")
         );
 
-    uint256 hash;
-    hash.SetHex(params[0].get_str());
+    LOCK(cs_main);
 
-    CAmount nAmount = 0;
-    if (params[2].get_real() != 0.0)
-        nAmount = AmountFromValue(params[2]);
+    uint256 hash = ParseHashStr(params[0].get_str(), "txid");
+    CAmount nAmount = params[2].get_int64();
 
     mempool.PrioritiseTransaction(hash, params[0].get_str(), params[1].get_real(), nAmount);
     return true;
@@ -380,6 +363,8 @@ Value getblocktemplate(const Array& params, bool fHelp)
             + HelpExampleRpc("getblocktemplate", "")
          );
 
+    LOCK(cs_main);
+
     std::string strMode = "template";
     Value lpval = Value::null;
     if (params.size() > 0)
@@ -564,7 +549,7 @@ Value getblocktemplate(const Array& params, bool fHelp)
     Object aux;
     aux.push_back(Pair("flags", HexStr(COINBASE_FLAGS.begin(), COINBASE_FLAGS.end())));
 
-    uint256 hashTarget = uint256().SetCompact(pblock->nBits);
+    arith_uint256 hashTarget = arith_uint256().SetCompact(pblock->nBits);
 
     static Array aMutable;
     if (aMutable.empty())
@@ -675,7 +660,7 @@ Value estimatefee(const Array& params, bool fHelp)
         throw runtime_error(
             "estimatefee nblocks\n"
             "\nEstimates the approximate fee per kilobyte\n"
-            "needed for a transaction to get confirmed\n"
+            "needed for a transaction to begin confirmation\n"
             "within nblocks blocks.\n"
             "\nArguments:\n"
             "1. nblocks     (numeric)\n"
@@ -707,7 +692,7 @@ Value estimatepriority(const Array& params, bool fHelp)
         throw runtime_error(
             "estimatepriority nblocks\n"
             "\nEstimates the approximate priority\n"
-            "a zero-fee transaction needs to get confirmed\n"
+            "a zero-fee transaction needs to begin confirmation\n"
             "within nblocks blocks.\n"
             "\nArguments:\n"
             "1. nblocks     (numeric)\n"
diff --git a/src/rpcmisc.cpp b/src/rpcmisc.cpp
index 90b9c99caa..8d260b1cc9 100644
--- a/src/rpcmisc.cpp
+++ b/src/rpcmisc.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -23,8 +23,6 @@
 #include "json/json_spirit_utils.h"
 #include "json/json_spirit_value.h"
 
-using namespace boost;
-using namespace boost::assign;
 using namespace json_spirit;
 using namespace std;
 
@@ -71,6 +69,12 @@ Value getinfo(const Array& params, bool fHelp)
             + HelpExampleRpc("getinfo", "")
         );
 
+#ifdef ENABLE_WALLET
+    LOCK2(cs_main, pwalletMain ? &pwalletMain->cs_wallet : NULL);
+#else
+    LOCK(cs_main);
+#endif
+
     proxyType proxy;
     GetProxy(NET_IPV4, proxy);
 
@@ -162,17 +166,24 @@ Value validateaddress(const Array& params, bool fHelp)
             "{\n"
             "  \"isvalid\" : true|false,         (boolean) If the address is valid or not. If not, this is the only property returned.\n"
             "  \"address\" : \"bitcoinaddress\", (string) The bitcoin address validated\n"
+            "  \"scriptPubKey\" : \"hex\",       (string) The hex encoded scriptPubKey generated by the address\n"
             "  \"ismine\" : true|false,          (boolean) If the address is yours or not\n"
             "  \"isscript\" : true|false,        (boolean) If the key is a script\n"
             "  \"pubkey\" : \"publickeyhex\",    (string) The hex value of the raw public key\n"
             "  \"iscompressed\" : true|false,    (boolean) If the address is compressed\n"
-            "  \"account\" : \"account\"         (string) The account associated with the address, \"\" is the default account\n"
+            "  \"account\" : \"account\"         (string) DEPRECATED. The account associated with the address, \"\" is the default account\n"
             "}\n"
             "\nExamples:\n"
             + HelpExampleCli("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
             + HelpExampleRpc("validateaddress", "\"1PSSGeFHDnKNxiEyFrD1wcEaHr9hrQDDWc\"")
         );
 
+#ifdef ENABLE_WALLET
+    LOCK2(cs_main, pwalletMain ? &pwalletMain->cs_wallet : NULL);
+#else
+    LOCK(cs_main);
+#endif
+
     CBitcoinAddress address(params[0].get_str());
     bool isValid = address.IsValid();
 
@@ -183,6 +194,10 @@ Value validateaddress(const Array& params, bool fHelp)
         CTxDestination dest = address.Get();
         string currentAddress = address.ToString();
         ret.push_back(Pair("address", currentAddress));
+
+        CScript scriptPubKey = GetScriptForDestination(dest);
+        ret.push_back(Pair("scriptPubKey", HexStr(scriptPubKey.begin(), scriptPubKey.end())));
+
 #ifdef ENABLE_WALLET
         isminetype mine = pwalletMain ? IsMine(*pwalletMain, dest) : ISMINE_NO;
         ret.push_back(Pair("ismine", (mine & ISMINE_SPENDABLE) ? true : false));
@@ -326,6 +341,8 @@ Value verifymessage(const Array& params, bool fHelp)
             + HelpExampleRpc("verifymessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\", \"signature\", \"my message\"")
         );
 
+    LOCK(cs_main);
+
     string strAddress  = params[0].get_str();
     string strSign     = params[1].get_str();
     string strMessage  = params[2].get_str();
@@ -369,6 +386,8 @@ Value setmocktime(const Array& params, bool fHelp)
     if (!Params().MineBlocksOnDemand())
         throw runtime_error("setmocktime for regression testing (-regtest mode) only");
 
+    LOCK(cs_main);
+
     RPCTypeCheck(params, boost::assign::list_of(int_type));
     SetMockTime(params[0].get_int64());
 
diff --git a/src/rpcnet.cpp b/src/rpcnet.cpp
index 6ddbd62fca..6306fd4406 100644
--- a/src/rpcnet.cpp
+++ b/src/rpcnet.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -34,7 +34,8 @@ Value getconnectioncount(const Array& params, bool fHelp)
             + HelpExampleRpc("getconnectioncount", "")
         );
 
-    LOCK(cs_vNodes);
+    LOCK2(cs_main, cs_vNodes);
+
     return (int)vNodes.size();
 }
 
@@ -52,7 +53,8 @@ Value ping(const Array& params, bool fHelp)
         );
 
     // Request that each node send a ping during next message processing pass
-    LOCK(cs_vNodes);
+    LOCK2(cs_main, cs_vNodes);
+
     BOOST_FOREACH(CNode* pNode, vNodes) {
         pNode->fPingQueued = true;
     }
@@ -91,6 +93,7 @@ Value getpeerinfo(const Array& params, bool fHelp)
             "    \"bytessent\": n,            (numeric) The total bytes sent\n"
             "    \"bytesrecv\": n,            (numeric) The total bytes received\n"
             "    \"conntime\": ttt,           (numeric) The connection time in seconds since epoch (Jan 1 1970 GMT)\n"
+            "    \"timeoffset\": ttt,         (numeric) The time offset in seconds\n"
             "    \"pingtime\": n,             (numeric) ping time\n"
             "    \"pingwait\": n,             (numeric) ping wait\n"
             "    \"version\": v,              (numeric) The peer version, such as 7001\n"
@@ -112,6 +115,8 @@ Value getpeerinfo(const Array& params, bool fHelp)
             + HelpExampleRpc("getpeerinfo", "")
         );
 
+    LOCK(cs_main);
+
     vector<CNodeStats> vstats;
     CopyNodeStats(vstats);
 
@@ -131,6 +136,7 @@ Value getpeerinfo(const Array& params, bool fHelp)
         obj.push_back(Pair("bytessent", stats.nSendBytes));
         obj.push_back(Pair("bytesrecv", stats.nRecvBytes));
         obj.push_back(Pair("conntime", stats.nTimeConnected));
+        obj.push_back(Pair("timeoffset", stats.nTimeOffset));
         obj.push_back(Pair("pingtime", stats.dPingTime));
         if (stats.dPingWait > 0.0)
             obj.push_back(Pair("pingwait", stats.dPingWait));
@@ -409,6 +415,8 @@ Value getnetworkinfo(const Array& params, bool fHelp)
             + HelpExampleRpc("getnetworkinfo", "")
         );
 
+    LOCK(cs_main);
+
     Object obj;
     obj.push_back(Pair("version",       CLIENT_VERSION));
     obj.push_back(Pair("subversion",
diff --git a/src/rpcprotocol.cpp b/src/rpcprotocol.cpp
index 2f7c491f3d..95d6b9e531 100644
--- a/src/rpcprotocol.cpp
+++ b/src/rpcprotocol.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -26,8 +26,6 @@
 #include "json/json_spirit_writer_template.h"
 
 using namespace std;
-using namespace boost;
-using namespace boost::asio;
 using namespace json_spirit;
 
 //! Number of bytes to allocate and read at most at once in post data
diff --git a/src/rpcprotocol.h b/src/rpcprotocol.h
index f7cd50f9f6..4f3f70fb37 100644
--- a/src/rpcprotocol.h
+++ b/src/rpcprotocol.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -122,8 +122,7 @@ public:
             tcp::resolver::query query(server.c_str(), port.c_str());
             endpoint_iterator = resolver.resolve(query);
 #if BOOST_VERSION >= 104300
-        } catch(boost::system::system_error &e)
-        {
+        } catch (const boost::system::system_error&) {
             // If we at first don't succeed, try blanket lookup (IPv4+IPv6 independent of configured interfaces)
             tcp::resolver::query query(server.c_str(), port.c_str(), resolver_query_base::flags());
             endpoint_iterator = resolver.resolve(query);
diff --git a/src/rpcrawtransaction.cpp b/src/rpcrawtransaction.cpp
index 8de15ff9e2..4a079f5c81 100644
--- a/src/rpcrawtransaction.cpp
+++ b/src/rpcrawtransaction.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -25,8 +25,6 @@
 #include "json/json_spirit_utils.h"
 #include "json/json_spirit_value.h"
 
-using namespace boost;
-using namespace boost::assign;
 using namespace json_spirit;
 using namespace std;
 
@@ -89,7 +87,7 @@ void TxToJSON(const CTransaction& tx, const uint256 hashBlock, Object& entry)
     }
     entry.push_back(Pair("vout", vout));
 
-    if (hashBlock != 0) {
+    if (!hashBlock.IsNull()) {
         entry.push_back(Pair("blockhash", hashBlock.GetHex()));
         BlockMap::iterator mi = mapBlockIndex.find(hashBlock);
         if (mi != mapBlockIndex.end() && (*mi).second) {
@@ -171,6 +169,8 @@ Value getrawtransaction(const Array& params, bool fHelp)
             + HelpExampleRpc("getrawtransaction", "\"mytxid\", 1")
         );
 
+    LOCK(cs_main);
+
     uint256 hash = ParseHashV(params[0], "parameter 1");
 
     bool fVerbose = false;
@@ -178,7 +178,7 @@ Value getrawtransaction(const Array& params, bool fHelp)
         fVerbose = (params[1].get_int() != 0);
 
     CTransaction tx;
-    uint256 hashBlock = 0;
+    uint256 hashBlock;
     if (!GetTransaction(hash, tx, hashBlock, true))
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "No information available about transaction");
 
@@ -218,7 +218,7 @@ Value listunspent(const Array& params, bool fHelp)
             "    \"txid\" : \"txid\",        (string) the transaction id \n"
             "    \"vout\" : n,               (numeric) the vout value\n"
             "    \"address\" : \"address\",  (string) the bitcoin address\n"
-            "    \"account\" : \"account\",  (string) The associated account, or \"\" for the default account\n"
+            "    \"account\" : \"account\",  (string) DEPRECATED. The associated account, or \"\" for the default account\n"
             "    \"scriptPubKey\" : \"key\", (string) the script key\n"
             "    \"amount\" : x.xxx,         (numeric) the transaction amount in btc\n"
             "    \"confirmations\" : n       (numeric) The number of confirmations\n"
@@ -232,7 +232,7 @@ Value listunspent(const Array& params, bool fHelp)
             + HelpExampleRpc("listunspent", "6, 9999999 \"[\\\"1PGFqEzfmQch1gKD3ra4k18PNj3tTUUSqg\\\",\\\"1LtvqCaApEdUGFkpKMM4MstjcaL4dKg8SP\\\"]\"")
         );
 
-    RPCTypeCheck(params, list_of(int_type)(int_type)(array_type));
+    RPCTypeCheck(params, boost::assign::list_of(int_type)(int_type)(array_type));
 
     int nMinDepth = 1;
     if (params.size() > 0)
@@ -258,6 +258,7 @@ Value listunspent(const Array& params, bool fHelp)
     Array results;
     vector<COutput> vecOutputs;
     assert(pwalletMain != NULL);
+    LOCK2(cs_main, pwalletMain->cs_wallet);
     pwalletMain->AvailableCoins(vecOutputs, false);
     BOOST_FOREACH(const COutput& out, vecOutputs) {
         if (out.nDepth < nMinDepth || out.nDepth > nMaxDepth)
@@ -336,7 +337,8 @@ Value createrawtransaction(const Array& params, bool fHelp)
             + HelpExampleRpc("createrawtransaction", "\"[{\\\"txid\\\":\\\"myid\\\",\\\"vout\\\":0}]\", \"{\\\"address\\\":0.01}\"")
         );
 
-    RPCTypeCheck(params, list_of(array_type)(obj_type));
+    LOCK(cs_main);
+    RPCTypeCheck(params, boost::assign::list_of(array_type)(obj_type));
 
     Array inputs = params[0].get_array();
     Object sendTo = params[1].get_obj();
@@ -430,7 +432,8 @@ Value decoderawtransaction(const Array& params, bool fHelp)
             + HelpExampleRpc("decoderawtransaction", "\"hexstring\"")
         );
 
-    RPCTypeCheck(params, list_of(str_type));
+    LOCK(cs_main);
+    RPCTypeCheck(params, boost::assign::list_of(str_type));
 
     CTransaction tx;
 
@@ -438,7 +441,7 @@ Value decoderawtransaction(const Array& params, bool fHelp)
         throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
 
     Object result;
-    TxToJSON(tx, 0, result);
+    TxToJSON(tx, uint256(), result);
 
     return result;
 }
@@ -468,7 +471,8 @@ Value decodescript(const Array& params, bool fHelp)
             + HelpExampleRpc("decodescript", "\"hexstring\"")
         );
 
-    RPCTypeCheck(params, list_of(str_type));
+    LOCK(cs_main);
+    RPCTypeCheck(params, boost::assign::list_of(str_type));
 
     Object r;
     CScript script;
@@ -534,7 +538,12 @@ Value signrawtransaction(const Array& params, bool fHelp)
             + HelpExampleRpc("signrawtransaction", "\"myhex\"")
         );
 
-    RPCTypeCheck(params, list_of(str_type)(array_type)(array_type)(str_type), true);
+#ifdef ENABLE_WALLET
+    LOCK2(cs_main, pwalletMain ? &pwalletMain->cs_wallet : NULL);
+#else
+    LOCK(cs_main);
+#endif
+    RPCTypeCheck(params, boost::assign::list_of(str_type)(array_type)(array_type)(str_type), true);
 
     vector<unsigned char> txData(ParseHexV(params[0], "argument 1"));
     CDataStream ssData(txData, SER_NETWORK, PROTOCOL_VERSION);
@@ -545,7 +554,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
             ssData >> tx;
             txVariants.push_back(tx);
         }
-        catch (const std::exception &) {
+        catch (const std::exception&) {
             throw JSONRPCError(RPC_DESERIALIZATION_ERROR, "TX decode failed");
         }
     }
@@ -587,11 +596,13 @@ Value signrawtransaction(const Array& params, bool fHelp)
             if (!fGood)
                 throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid private key");
             CKey key = vchSecret.GetKey();
+            if (!key.IsValid())
+                throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Private key outside allowed range");
             tempKeystore.AddKey(key);
         }
     }
 #ifdef ENABLE_WALLET
-    else
+    else if (pwalletMain)
         EnsureWalletIsUnlocked();
 #endif
 
@@ -604,7 +615,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
 
             Object prevOut = p.get_obj();
 
-            RPCTypeCheck(prevOut, map_list_of("txid", str_type)("vout", int_type)("scriptPubKey", str_type));
+            RPCTypeCheck(prevOut, boost::assign::map_list_of("txid", str_type)("vout", int_type)("scriptPubKey", str_type));
 
             uint256 txid = ParseHashO(prevOut, "txid");
 
@@ -632,7 +643,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
             // if redeemScript given and not using the local wallet (private keys
             // given), add redeemScript to the tempKeystore so it can be signed:
             if (fGivenKeys && scriptPubKey.IsPayToScriptHash()) {
-                RPCTypeCheck(prevOut, map_list_of("txid", str_type)("vout", int_type)("scriptPubKey", str_type)("redeemScript",str_type));
+                RPCTypeCheck(prevOut, boost::assign::map_list_of("txid", str_type)("vout", int_type)("scriptPubKey", str_type)("redeemScript",str_type));
                 Value v = find_value(prevOut, "redeemScript");
                 if (!(v == Value::null)) {
                     vector<unsigned char> rsData(ParseHexV(v, "redeemScript"));
@@ -688,7 +699,7 @@ Value signrawtransaction(const Array& params, bool fHelp)
         BOOST_FOREACH(const CMutableTransaction& txv, txVariants) {
             txin.scriptSig = CombineSignatures(prevPubKey, mergedTx, i, txin.scriptSig, txv.vin[i].scriptSig);
         }
-        if (!VerifyScript(txin.scriptSig, prevPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, SignatureChecker(mergedTx, i)))
+        if (!VerifyScript(txin.scriptSig, prevPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&mergedTx, i)))
             fComplete = false;
     }
 
@@ -722,7 +733,8 @@ Value sendrawtransaction(const Array& params, bool fHelp)
             + HelpExampleRpc("sendrawtransaction", "\"signedhex\"")
         );
 
-    RPCTypeCheck(params, list_of(str_type)(bool_type));
+    LOCK(cs_main);
+    RPCTypeCheck(params, boost::assign::list_of(str_type)(bool_type));
 
     // parse hex string from parameter
     CTransaction tx;
diff --git a/src/rpcserver.cpp b/src/rpcserver.cpp
index 90695611f2..823b1fcf24 100644
--- a/src/rpcserver.cpp
+++ b/src/rpcserver.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -7,9 +7,11 @@
 
 #include "base58.h"
 #include "init.h"
-#include "main.h"
+#include "random.h"
+#include "sync.h"
 #include "ui_interface.h"
 #include "util.h"
+#include "utilstrencodings.h"
 #ifdef ENABLE_WALLET
 #include "wallet.h"
 #endif
@@ -23,12 +25,13 @@
 #include <boost/iostreams/concepts.hpp>
 #include <boost/iostreams/stream.hpp>
 #include <boost/shared_ptr.hpp>
+#include <boost/signals2/signal.hpp>
 #include <boost/thread.hpp>
 #include "json/json_spirit_writer_template.h"
 
-using namespace boost;
 using namespace boost::asio;
 using namespace json_spirit;
+using namespace RPCServer;
 using namespace std;
 
 static std::string strRPCUserColonPass;
@@ -39,7 +42,7 @@ static std::string rpcWarmupStatus("RPC server started");
 static CCriticalSection cs_rpcWarmup;
 
 //! These are created by StartRPCThreads, destroyed in StopRPCThreads
-static asio::io_service* rpc_io_service = NULL;
+static boost::asio::io_service* rpc_io_service = NULL;
 static map<string, boost::shared_ptr<deadline_timer> > deadlineTimers;
 static ssl::context* rpc_ssl_context = NULL;
 static boost::thread_group* rpc_worker_group = NULL;
@@ -47,6 +50,34 @@ static boost::asio::io_service::work *rpc_dummy_work = NULL;
 static std::vector<CSubNet> rpc_allow_subnets; //!< List of subnets to allow RPC connections from
 static std::vector< boost::shared_ptr<ip::tcp::acceptor> > rpc_acceptors;
 
+static struct CRPCSignals
+{
+    boost::signals2::signal<void ()> Started;
+    boost::signals2::signal<void ()> Stopped;
+    boost::signals2::signal<void (const CRPCCommand&)> PreCommand;
+    boost::signals2::signal<void (const CRPCCommand&)> PostCommand;
+} g_rpcSignals;
+
+void RPCServer::OnStarted(boost::function<void ()> slot)
+{
+    g_rpcSignals.Started.connect(slot);
+}
+
+void RPCServer::OnStopped(boost::function<void ()> slot)
+{
+    g_rpcSignals.Stopped.connect(slot);
+}
+
+void RPCServer::OnPreCommand(boost::function<void (const CRPCCommand&)> slot)
+{
+    g_rpcSignals.PreCommand.connect(boost::bind(slot, _1));
+}
+
+void RPCServer::OnPostCommand(boost::function<void (const CRPCCommand&)> slot)
+{
+    g_rpcSignals.PostCommand.connect(boost::bind(slot, _1));
+}
+
 void RPCTypeCheck(const Array& params,
                   const list<Value_type>& typesExpected,
                   bool fAllowNull)
@@ -174,7 +205,7 @@ string CRPCTable::help(string strCommand) const
             if (setDone.insert(pfn).second)
                 (*pfn)(params, true);
         }
-        catch (std::exception& e)
+        catch (const std::exception& e)
         {
             // Help text is returned in an exception
             string strHelp = string(e.what());
@@ -240,113 +271,110 @@ Value stop(const Array& params, bool fHelp)
  * Call Table
  */
 static const CRPCCommand vRPCCommands[] =
-{ //  category              name                      actor (function)         okSafeMode threadSafe reqWallet
-  //  --------------------- ------------------------  -----------------------  ---------- ---------- ---------
+{ //  category              name                      actor (function)         okSafeMode reqWallet
+  //  --------------------- ------------------------  -----------------------  ---------- ---------
     /* Overall control/query calls */
-    { "control",            "getinfo",                &getinfo,                true,      false,      false }, /* uses wallet if enabled */
-    { "control",            "help",                   &help,                   true,      true,       false },
-    { "control",            "stop",                   &stop,                   true,      true,       false },
+    { "control",            "getinfo",                &getinfo,                true,      false }, /* uses wallet if enabled */
+    { "control",            "help",                   &help,                   true,      false },
+    { "control",            "stop",                   &stop,                   true,      false },
 
     /* P2P networking */
-    { "network",            "getnetworkinfo",         &getnetworkinfo,         true,      false,      false },
-    { "network",            "addnode",                &addnode,                true,      true,       false },
-    { "network",            "getaddednodeinfo",       &getaddednodeinfo,       true,      true,       false },
-    { "network",            "getconnectioncount",     &getconnectioncount,     true,      false,      false },
-    { "network",            "getnettotals",           &getnettotals,           true,      true,       false },
-    { "network",            "getpeerinfo",            &getpeerinfo,            true,      false,      false },
-    { "network",            "ping",                   &ping,                   true,      false,      false },
+    { "network",            "getnetworkinfo",         &getnetworkinfo,         true,      false },
+    { "network",            "addnode",                &addnode,                true,      false },
+    { "network",            "getaddednodeinfo",       &getaddednodeinfo,       true,      false },
+    { "network",            "getconnectioncount",     &getconnectioncount,     true,      false },
+    { "network",            "getnettotals",           &getnettotals,           true,      false },
+    { "network",            "getpeerinfo",            &getpeerinfo,            true,      false },
+    { "network",            "ping",                   &ping,                   true,      false },
 
     /* Block chain and UTXO */
-    { "blockchain",         "getblockchaininfo",      &getblockchaininfo,      true,      false,      false },
-    { "blockchain",         "getbestblockhash",       &getbestblockhash,       true,      false,      false },
-    { "blockchain",         "getblockcount",          &getblockcount,          true,      false,      false },
-    { "blockchain",         "getblock",               &getblock,               true,      false,      false },
-    { "blockchain",         "getblockhash",           &getblockhash,           true,      false,      false },
-    { "blockchain",         "getchaintips",           &getchaintips,           true,      false,      false },
-    { "blockchain",         "getdifficulty",          &getdifficulty,          true,      false,      false },
-    { "blockchain",         "getmempoolinfo",         &getmempoolinfo,         true,      true,       false },
-    { "blockchain",         "getrawmempool",          &getrawmempool,          true,      false,      false },
-    { "blockchain",         "gettxout",               &gettxout,               true,      false,      false },
-    { "blockchain",         "gettxoutsetinfo",        &gettxoutsetinfo,        true,      false,      false },
-    { "blockchain",         "verifychain",            &verifychain,            true,      false,      false },
-    { "blockchain",         "invalidateblock",        &invalidateblock,        true,      true,       false },
-    { "blockchain",         "reconsiderblock",        &reconsiderblock,        true,      true,       false },
+    { "blockchain",         "getblockchaininfo",      &getblockchaininfo,      true,      false },
+    { "blockchain",         "getbestblockhash",       &getbestblockhash,       true,      false },
+    { "blockchain",         "getblockcount",          &getblockcount,          true,      false },
+    { "blockchain",         "getblock",               &getblock,               true,      false },
+    { "blockchain",         "getblockhash",           &getblockhash,           true,      false },
+    { "blockchain",         "getchaintips",           &getchaintips,           true,      false },
+    { "blockchain",         "getdifficulty",          &getdifficulty,          true,      false },
+    { "blockchain",         "getmempoolinfo",         &getmempoolinfo,         true,      false },
+    { "blockchain",         "getrawmempool",          &getrawmempool,          true,      false },
+    { "blockchain",         "gettxout",               &gettxout,               true,      false },
+    { "blockchain",         "gettxoutsetinfo",        &gettxoutsetinfo,        true,      false },
+    { "blockchain",         "verifychain",            &verifychain,            true,      false },
 
     /* Mining */
-    { "mining",             "getblocktemplate",       &getblocktemplate,       true,      false,      false },
-    { "mining",             "getmininginfo",          &getmininginfo,          true,      false,      false },
-    { "mining",             "getnetworkhashps",       &getnetworkhashps,       true,      false,      false },
-    { "mining",             "prioritisetransaction",  &prioritisetransaction,  true,      false,      false },
-    { "mining",             "submitblock",            &submitblock,            true,      true,       false },
+    { "mining",             "getblocktemplate",       &getblocktemplate,       true,      false },
+    { "mining",             "getmininginfo",          &getmininginfo,          true,      false },
+    { "mining",             "getnetworkhashps",       &getnetworkhashps,       true,      false },
+    { "mining",             "prioritisetransaction",  &prioritisetransaction,  true,      false },
+    { "mining",             "submitblock",            &submitblock,            true,      false },
 
 #ifdef ENABLE_WALLET
     /* Coin generation */
-    { "generating",         "getgenerate",            &getgenerate,            true,      false,      false },
-    { "generating",         "gethashespersec",        &gethashespersec,        true,      false,      false },
-    { "generating",         "setgenerate",            &setgenerate,            true,      true,       false },
+    { "generating",         "getgenerate",            &getgenerate,            true,      false },
+    { "generating",         "setgenerate",            &setgenerate,            true,      false },
 #endif
 
     /* Raw transactions */
-    { "rawtransactions",    "createrawtransaction",   &createrawtransaction,   true,      false,      false },
-    { "rawtransactions",    "decoderawtransaction",   &decoderawtransaction,   true,      false,      false },
-    { "rawtransactions",    "decodescript",           &decodescript,           true,      false,      false },
-    { "rawtransactions",    "getrawtransaction",      &getrawtransaction,      true,      false,      false },
-    { "rawtransactions",    "sendrawtransaction",     &sendrawtransaction,     false,     false,      false },
-    { "rawtransactions",    "signrawtransaction",     &signrawtransaction,     false,     false,      false }, /* uses wallet if enabled */
+    { "rawtransactions",    "createrawtransaction",   &createrawtransaction,   true,      false },
+    { "rawtransactions",    "decoderawtransaction",   &decoderawtransaction,   true,      false },
+    { "rawtransactions",    "decodescript",           &decodescript,           true,      false },
+    { "rawtransactions",    "getrawtransaction",      &getrawtransaction,      true,      false },
+    { "rawtransactions",    "sendrawtransaction",     &sendrawtransaction,     false,     false },
+    { "rawtransactions",    "signrawtransaction",     &signrawtransaction,     false,     false }, /* uses wallet if enabled */
 
     /* Utility functions */
-    { "util",               "createmultisig",         &createmultisig,         true,      true ,      false },
-    { "util",               "validateaddress",        &validateaddress,        true,      false,      false }, /* uses wallet if enabled */
-    { "util",               "verifymessage",          &verifymessage,          true,      false,      false },
-    { "util",               "estimatefee",            &estimatefee,            true,      true,       false },
-    { "util",               "estimatepriority",       &estimatepriority,       true,      true,       false },
+    { "util",               "createmultisig",         &createmultisig,         true,      false },
+    { "util",               "validateaddress",        &validateaddress,        true,      false }, /* uses wallet if enabled */
+    { "util",               "verifymessage",          &verifymessage,          true,      false },
+    { "util",               "estimatefee",            &estimatefee,            true,      false },
+    { "util",               "estimatepriority",       &estimatepriority,       true,      false },
 
     /* Not shown in help */
-    { "hidden",             "invalidateblock",        &invalidateblock,        true,      true,       false },
-    { "hidden",             "reconsiderblock",        &reconsiderblock,        true,      true,       false },
-    { "hidden",             "setmocktime",            &setmocktime,            true,      false,      false },
+    { "hidden",             "invalidateblock",        &invalidateblock,        true,      false },
+    { "hidden",             "reconsiderblock",        &reconsiderblock,        true,      false },
+    { "hidden",             "setmocktime",            &setmocktime,            true,      false },
 
 #ifdef ENABLE_WALLET
     /* Wallet */
-    { "wallet",             "addmultisigaddress",     &addmultisigaddress,     true,      false,      true },
-    { "wallet",             "backupwallet",           &backupwallet,           true,      false,      true },
-    { "wallet",             "dumpprivkey",            &dumpprivkey,            true,      false,      true },
-    { "wallet",             "dumpwallet",             &dumpwallet,             true,      false,      true },
-    { "wallet",             "encryptwallet",          &encryptwallet,          true,      false,      true },
-    { "wallet",             "getaccountaddress",      &getaccountaddress,      true,      false,      true },
-    { "wallet",             "getaccount",             &getaccount,             true,      false,      true },
-    { "wallet",             "getaddressesbyaccount",  &getaddressesbyaccount,  true,      false,      true },
-    { "wallet",             "getbalance",             &getbalance,             false,     false,      true },
-    { "wallet",             "getnewaddress",          &getnewaddress,          true,      false,      true },
-    { "wallet",             "getrawchangeaddress",    &getrawchangeaddress,    true,      false,      true },
-    { "wallet",             "getreceivedbyaccount",   &getreceivedbyaccount,   false,     false,      true },
-    { "wallet",             "getreceivedbyaddress",   &getreceivedbyaddress,   false,     false,      true },
-    { "wallet",             "gettransaction",         &gettransaction,         false,     false,      true },
-    { "wallet",             "getunconfirmedbalance",  &getunconfirmedbalance,  false,     false,      true },
-    { "wallet",             "getwalletinfo",          &getwalletinfo,          false,     false,      true },
-    { "wallet",             "importprivkey",          &importprivkey,          true,      false,      true },
-    { "wallet",             "importwallet",           &importwallet,           true,      false,      true },
-    { "wallet",             "importaddress",          &importaddress,          true,      false,      true },
-    { "wallet",             "keypoolrefill",          &keypoolrefill,          true,      false,      true },
-    { "wallet",             "listaccounts",           &listaccounts,           false,     false,      true },
-    { "wallet",             "listaddressgroupings",   &listaddressgroupings,   false,     false,      true },
-    { "wallet",             "listlockunspent",        &listlockunspent,        false,     false,      true },
-    { "wallet",             "listreceivedbyaccount",  &listreceivedbyaccount,  false,     false,      true },
-    { "wallet",             "listreceivedbyaddress",  &listreceivedbyaddress,  false,     false,      true },
-    { "wallet",             "listsinceblock",         &listsinceblock,         false,     false,      true },
-    { "wallet",             "listtransactions",       &listtransactions,       false,     false,      true },
-    { "wallet",             "listunspent",            &listunspent,            false,     false,      true },
-    { "wallet",             "lockunspent",            &lockunspent,            true,      false,      true },
-    { "wallet",             "move",                   &movecmd,                false,     false,      true },
-    { "wallet",             "sendfrom",               &sendfrom,               false,     false,      true },
-    { "wallet",             "sendmany",               &sendmany,               false,     false,      true },
-    { "wallet",             "sendtoaddress",          &sendtoaddress,          false,     false,      true },
-    { "wallet",             "setaccount",             &setaccount,             true,      false,      true },
-    { "wallet",             "settxfee",               &settxfee,               true,      false,      true },
-    { "wallet",             "signmessage",            &signmessage,            true,      false,      true },
-    { "wallet",             "walletlock",             &walletlock,             true,      false,      true },
-    { "wallet",             "walletpassphrasechange", &walletpassphrasechange, true,      false,      true },
-    { "wallet",             "walletpassphrase",       &walletpassphrase,       true,      false,      true },
+    { "wallet",             "addmultisigaddress",     &addmultisigaddress,     true,      true },
+    { "wallet",             "backupwallet",           &backupwallet,           true,      true },
+    { "wallet",             "dumpprivkey",            &dumpprivkey,            true,      true },
+    { "wallet",             "dumpwallet",             &dumpwallet,             true,      true },
+    { "wallet",             "encryptwallet",          &encryptwallet,          true,      true },
+    { "wallet",             "getaccountaddress",      &getaccountaddress,      true,      true },
+    { "wallet",             "getaccount",             &getaccount,             true,      true },
+    { "wallet",             "getaddressesbyaccount",  &getaddressesbyaccount,  true,      true },
+    { "wallet",             "getbalance",             &getbalance,             false,     true },
+    { "wallet",             "getnewaddress",          &getnewaddress,          true,      true },
+    { "wallet",             "getrawchangeaddress",    &getrawchangeaddress,    true,      true },
+    { "wallet",             "getreceivedbyaccount",   &getreceivedbyaccount,   false,     true },
+    { "wallet",             "getreceivedbyaddress",   &getreceivedbyaddress,   false,     true },
+    { "wallet",             "gettransaction",         &gettransaction,         false,     true },
+    { "wallet",             "getunconfirmedbalance",  &getunconfirmedbalance,  false,     true },
+    { "wallet",             "getwalletinfo",          &getwalletinfo,          false,     true },
+    { "wallet",             "importprivkey",          &importprivkey,          true,      true },
+    { "wallet",             "importwallet",           &importwallet,           true,      true },
+    { "wallet",             "importaddress",          &importaddress,          true,      true },
+    { "wallet",             "keypoolrefill",          &keypoolrefill,          true,      true },
+    { "wallet",             "listaccounts",           &listaccounts,           false,     true },
+    { "wallet",             "listaddressgroupings",   &listaddressgroupings,   false,     true },
+    { "wallet",             "listlockunspent",        &listlockunspent,        false,     true },
+    { "wallet",             "listreceivedbyaccount",  &listreceivedbyaccount,  false,     true },
+    { "wallet",             "listreceivedbyaddress",  &listreceivedbyaddress,  false,     true },
+    { "wallet",             "listsinceblock",         &listsinceblock,         false,     true },
+    { "wallet",             "listtransactions",       &listtransactions,       false,     true },
+    { "wallet",             "listunspent",            &listunspent,            false,     true },
+    { "wallet",             "lockunspent",            &lockunspent,            true,      true },
+    { "wallet",             "move",                   &movecmd,                false,     true },
+    { "wallet",             "sendfrom",               &sendfrom,               false,     true },
+    { "wallet",             "sendmany",               &sendmany,               false,     true },
+    { "wallet",             "sendtoaddress",          &sendtoaddress,          false,     true },
+    { "wallet",             "setaccount",             &setaccount,             true,      true },
+    { "wallet",             "settxfee",               &settxfee,               true,      true },
+    { "wallet",             "signmessage",            &signmessage,            true,      true },
+    { "wallet",             "walletlock",             &walletlock,             true,      true },
+    { "wallet",             "walletpassphrasechange", &walletpassphrasechange, true,      true },
+    { "wallet",             "walletpassphrase",       &walletpassphrase,       true,      true },
 #endif // ENABLE_WALLET
 };
 
@@ -428,7 +456,7 @@ class AcceptedConnectionImpl : public AcceptedConnection
 {
 public:
     AcceptedConnectionImpl(
-            asio::io_service& io_service,
+            boost::asio::io_service& io_service,
             ssl::context &context,
             bool fUseSSL) :
         sslStream(io_service, context),
@@ -453,11 +481,11 @@ public:
     }
 
     typename Protocol::endpoint peer;
-    asio::ssl::stream<typename Protocol::socket> sslStream;
+    boost::asio::ssl::stream<typename Protocol::socket> sslStream;
 
 private:
     SSLIOStreamDevice<Protocol> _d;
-    iostreams::stream< SSLIOStreamDevice<Protocol> > _stream;
+    boost::iostreams::stream< SSLIOStreamDevice<Protocol> > _stream;
 };
 
 void ServiceConnection(AcceptedConnection *conn);
@@ -504,7 +532,7 @@ static void RPCAcceptHandler(boost::shared_ptr< basic_socket_acceptor<Protocol,
                              const boost::system::error_code& error)
 {
     // Immediately start accepting new connections, except when we're cancelled or our socket is closed.
-    if (error != asio::error::operation_aborted && acceptor->is_open())
+    if (error != boost::asio::error::operation_aborted && acceptor->is_open())
         RPCListen(acceptor, context, fUseSSL);
 
     AcceptedConnectionImpl<ip::tcp>* tcp_conn = dynamic_cast< AcceptedConnectionImpl<ip::tcp>* >(conn.get());
@@ -535,7 +563,7 @@ static ip::tcp::endpoint ParseEndpoint(const std::string &strEndpoint, int defau
     std::string addr;
     int port = defaultPort;
     SplitHostPort(strEndpoint, port, addr);
-    return ip::tcp::endpoint(asio::ip::address::from_string(addr), port);
+    return ip::tcp::endpoint(boost::asio::ip::address::from_string(addr), port);
 }
 
 void StartRPCThreads()
@@ -590,23 +618,23 @@ void StartRPCThreads()
     }
 
     assert(rpc_io_service == NULL);
-    rpc_io_service = new asio::io_service();
+    rpc_io_service = new boost::asio::io_service();
     rpc_ssl_context = new ssl::context(*rpc_io_service, ssl::context::sslv23);
 
     const bool fUseSSL = GetBoolArg("-rpcssl", false);
 
     if (fUseSSL)
     {
-        rpc_ssl_context->set_options(ssl::context::no_sslv2);
+        rpc_ssl_context->set_options(ssl::context::no_sslv2 | ssl::context::no_sslv3);
 
-        filesystem::path pathCertFile(GetArg("-rpcsslcertificatechainfile", "server.cert"));
-        if (!pathCertFile.is_complete()) pathCertFile = filesystem::path(GetDataDir()) / pathCertFile;
-        if (filesystem::exists(pathCertFile)) rpc_ssl_context->use_certificate_chain_file(pathCertFile.string());
+        boost::filesystem::path pathCertFile(GetArg("-rpcsslcertificatechainfile", "server.cert"));
+        if (!pathCertFile.is_complete()) pathCertFile = boost::filesystem::path(GetDataDir()) / pathCertFile;
+        if (boost::filesystem::exists(pathCertFile)) rpc_ssl_context->use_certificate_chain_file(pathCertFile.string());
         else LogPrintf("ThreadRPCServer ERROR: missing server certificate file %s\n", pathCertFile.string());
 
-        filesystem::path pathPKFile(GetArg("-rpcsslprivatekeyfile", "server.pem"));
-        if (!pathPKFile.is_complete()) pathPKFile = filesystem::path(GetDataDir()) / pathPKFile;
-        if (filesystem::exists(pathPKFile)) rpc_ssl_context->use_private_key_file(pathPKFile.string(), ssl::context::pem);
+        boost::filesystem::path pathPKFile(GetArg("-rpcsslprivatekeyfile", "server.pem"));
+        if (!pathPKFile.is_complete()) pathPKFile = boost::filesystem::path(GetDataDir()) / pathPKFile;
+        if (boost::filesystem::exists(pathPKFile)) rpc_ssl_context->use_private_key_file(pathPKFile.string(), ssl::context::pem);
         else LogPrintf("ThreadRPCServer ERROR: missing server private key file %s\n", pathPKFile.string());
 
         string strCiphers = GetArg("-rpcsslciphers", "TLSv1.2+HIGH:TLSv1+HIGH:!SSLv2:!aNULL:!eNULL:!3DES:@STRENGTH");
@@ -618,8 +646,8 @@ void StartRPCThreads()
     int defaultPort = GetArg("-rpcport", BaseParams().RPCPort());
     if (!mapArgs.count("-rpcallowip")) // Default to loopback if not allowing external IPs
     {
-        vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v6::loopback(), defaultPort));
-        vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v4::loopback(), defaultPort));
+        vEndpoints.push_back(ip::tcp::endpoint(boost::asio::ip::address_v6::loopback(), defaultPort));
+        vEndpoints.push_back(ip::tcp::endpoint(boost::asio::ip::address_v4::loopback(), defaultPort));
         if (mapArgs.count("-rpcbind"))
         {
             LogPrintf("WARNING: option -rpcbind was ignored because -rpcallowip was not specified, refusing to allow everyone to connect\n");
@@ -631,7 +659,7 @@ void StartRPCThreads()
             try {
                 vEndpoints.push_back(ParseEndpoint(addr, defaultPort));
             }
-            catch(const boost::system::system_error &)
+            catch (const boost::system::system_error&)
             {
                 uiInterface.ThreadSafeMessageBox(
                     strprintf(_("Could not parse -rpcbind value %s as network address"), addr),
@@ -641,8 +669,8 @@ void StartRPCThreads()
             }
         }
     } else { // No specific bind address specified, bind to any
-        vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v6::any(), defaultPort));
-        vEndpoints.push_back(ip::tcp::endpoint(asio::ip::address_v4::any(), defaultPort));
+        vEndpoints.push_back(ip::tcp::endpoint(boost::asio::ip::address_v6::any(), defaultPort));
+        vEndpoints.push_back(ip::tcp::endpoint(boost::asio::ip::address_v4::any(), defaultPort));
         // Prefer making the socket dual IPv6/IPv4 instead of binding
         // to both addresses seperately.
         bBindAny = true;
@@ -650,20 +678,22 @@ void StartRPCThreads()
 
     bool fListening = false;
     std::string strerr;
+    std::string straddress;
     BOOST_FOREACH(const ip::tcp::endpoint &endpoint, vEndpoints)
     {
-        asio::ip::address bindAddress = endpoint.address();
-        LogPrintf("Binding RPC on address %s port %i (IPv4+IPv6 bind any: %i)\n", bindAddress.to_string(), endpoint.port(), bBindAny);
-        boost::system::error_code v6_only_error;
-        boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(*rpc_io_service));
-
         try {
+            boost::asio::ip::address bindAddress = endpoint.address();
+            straddress = bindAddress.to_string();
+            LogPrintf("Binding RPC on address %s port %i (IPv4+IPv6 bind any: %i)\n", straddress, endpoint.port(), bBindAny);
+            boost::system::error_code v6_only_error;
+            boost::shared_ptr<ip::tcp::acceptor> acceptor(new ip::tcp::acceptor(*rpc_io_service));
+
             acceptor->open(endpoint.protocol());
             acceptor->set_option(boost::asio::ip::tcp::acceptor::reuse_address(true));
 
             // Try making the socket dual IPv6/IPv4 when listening on the IPv6 "any" address
             acceptor->set_option(boost::asio::ip::v6_only(
-                !bBindAny || bindAddress != asio::ip::address_v6::any()), v6_only_error);
+                !bBindAny || bindAddress != boost::asio::ip::address_v6::any()), v6_only_error);
 
             acceptor->bind(endpoint);
             acceptor->listen(socket_base::max_connections);
@@ -673,13 +703,13 @@ void StartRPCThreads()
             fListening = true;
             rpc_acceptors.push_back(acceptor);
             // If dual IPv6/IPv4 bind successful, skip binding to IPv4 separately
-            if(bBindAny && bindAddress == asio::ip::address_v6::any() && !v6_only_error)
+            if(bBindAny && bindAddress == boost::asio::ip::address_v6::any() && !v6_only_error)
                 break;
         }
-        catch(boost::system::system_error &e)
+        catch (const boost::system::system_error& e)
         {
-            LogPrintf("ERROR: Binding RPC on address %s port %i failed: %s\n", bindAddress.to_string(), endpoint.port(), e.what());
-            strerr = strprintf(_("An error occurred while setting up the RPC address %s port %u for listening: %s"), bindAddress.to_string(), endpoint.port(), e.what());
+            LogPrintf("ERROR: Binding RPC on address %s port %i failed: %s\n", straddress, endpoint.port(), e.what());
+            strerr = strprintf(_("An error occurred while setting up the RPC address %s port %u for listening: %s"), straddress, endpoint.port(), e.what());
         }
     }
 
@@ -691,20 +721,21 @@ void StartRPCThreads()
 
     rpc_worker_group = new boost::thread_group();
     for (int i = 0; i < GetArg("-rpcthreads", 4); i++)
-        rpc_worker_group->create_thread(boost::bind(&asio::io_service::run, rpc_io_service));
+        rpc_worker_group->create_thread(boost::bind(&boost::asio::io_service::run, rpc_io_service));
     fRPCRunning = true;
+    g_rpcSignals.Started();
 }
 
 void StartDummyRPCThread()
 {
     if(rpc_io_service == NULL)
     {
-        rpc_io_service = new asio::io_service();
+        rpc_io_service = new boost::asio::io_service();
         /* Create dummy "work" to keep the thread from exiting when no timeouts active,
          * see http://www.boost.org/doc/libs/1_51_0/doc/html/boost_asio/reference/io_service.html#boost_asio.reference.io_service.stopping_the_io_service_from_running_out_of_work */
-        rpc_dummy_work = new asio::io_service::work(*rpc_io_service);
+        rpc_dummy_work = new boost::asio::io_service::work(*rpc_io_service);
         rpc_worker_group = new boost::thread_group();
-        rpc_worker_group->create_thread(boost::bind(&asio::io_service::run, rpc_io_service));
+        rpc_worker_group->create_thread(boost::bind(&boost::asio::io_service::run, rpc_io_service));
         fRPCRunning = true;
     }
 }
@@ -717,7 +748,7 @@ void StopRPCThreads()
 
     // First, cancel all timers and acceptors
     // This is not done automatically by ->stop(), and in some cases the destructor of
-    // asio::io_service can hang if this is skipped.
+    // boost::asio::io_service can hang if this is skipped.
     boost::system::error_code ec;
     BOOST_FOREACH(const boost::shared_ptr<ip::tcp::acceptor> &acceptor, rpc_acceptors)
     {
@@ -735,7 +766,7 @@ void StopRPCThreads()
     deadlineTimers.clear();
 
     rpc_io_service->stop();
-    cvBlockChange.notify_all();
+    g_rpcSignals.Stopped();
     if (rpc_worker_group != NULL)
         rpc_worker_group->join_all();
     delete rpc_dummy_work; rpc_dummy_work = NULL;
@@ -785,7 +816,7 @@ void RPCRunLater(const std::string& name, boost::function<void(void)> func, int6
         deadlineTimers.insert(make_pair(name,
                                         boost::shared_ptr<deadline_timer>(new deadline_timer(*rpc_io_service))));
     }
-    deadlineTimers[name]->expires_from_now(posix_time::seconds(nSeconds));
+    deadlineTimers[name]->expires_from_now(boost::posix_time::seconds(nSeconds));
     deadlineTimers[name]->async_wait(boost::bind(RPCRunHandler, _1, func));
 }
 
@@ -842,11 +873,11 @@ static Object JSONRPCExecOne(const Value& req)
         Value result = tableRPC.execute(jreq.strMethod, jreq.params);
         rpc_result = JSONRPCReplyObj(result, Value::null, jreq.id);
     }
-    catch (Object& objError)
+    catch (const Object& objError)
     {
         rpc_result = JSONRPCReplyObj(Value::null, objError, jreq.id);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         rpc_result = JSONRPCReplyObj(Value::null,
                                      JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
@@ -922,12 +953,12 @@ static bool HTTPReq_JSONRPC(AcceptedConnection *conn,
 
         conn->stream() << HTTPReplyHeader(HTTP_OK, fRun, strReply.size()) << strReply << std::flush;
     }
-    catch (Object& objError)
+    catch (const Object& objError)
     {
         ErrorReply(conn->stream(), objError, jreq.id);
         return false;
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         ErrorReply(conn->stream(), JSONRPCError(RPC_PARSE_ERROR, e.what()), jreq.id);
         return false;
@@ -952,7 +983,7 @@ void ServiceConnection(AcceptedConnection *conn)
         ReadHTTPMessage(conn->stream(), mapHeaders, strRequest, nProto, MAX_SIZE);
 
         // HTTP Keep-Alive is false; close connection immediately
-        if (mapHeaders["connection"] == "close")
+        if ((mapHeaders["connection"] == "close") || (!GetBoolArg("-rpckeepalive", true)))
             fRun = false;
 
         // Process via JSON-RPC API
@@ -978,45 +1009,20 @@ json_spirit::Value CRPCTable::execute(const std::string &strMethod, const json_s
     const CRPCCommand *pcmd = tableRPC[strMethod];
     if (!pcmd)
         throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found");
-#ifdef ENABLE_WALLET
-    if (pcmd->reqWallet && !pwalletMain)
-        throw JSONRPCError(RPC_METHOD_NOT_FOUND, "Method not found (disabled)");
-#endif
 
-    // Observe safe mode
-    string strWarning = GetWarnings("rpc");
-    if (strWarning != "" && !GetBoolArg("-disablesafemode", false) &&
-        !pcmd->okSafeMode)
-        throw JSONRPCError(RPC_FORBIDDEN_BY_SAFE_MODE, string("Safe mode: ") + strWarning);
+    g_rpcSignals.PreCommand(*pcmd);
 
     try
     {
         // Execute
-        Value result;
-        {
-            if (pcmd->threadSafe)
-                result = pcmd->actor(params, false);
-#ifdef ENABLE_WALLET
-            else if (!pwalletMain) {
-                LOCK(cs_main);
-                result = pcmd->actor(params, false);
-            } else {
-                LOCK2(cs_main, pwalletMain->cs_wallet);
-                result = pcmd->actor(params, false);
-            }
-#else // ENABLE_WALLET
-            else {
-                LOCK(cs_main);
-                result = pcmd->actor(params, false);
-            }
-#endif // !ENABLE_WALLET
-        }
-        return result;
+        return pcmd->actor(params, false);
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         throw JSONRPCError(RPC_MISC_ERROR, e.what());
     }
+
+    g_rpcSignals.PostCommand(*pcmd);
 }
 
 std::string HelpExampleCli(string methodname, string args){
diff --git a/src/rpcserver.h b/src/rpcserver.h
index 2b2428445d..f63438ecb8 100644
--- a/src/rpcserver.h
+++ b/src/rpcserver.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -19,6 +19,16 @@
 #include "json/json_spirit_utils.h"
 #include "json/json_spirit_writer_template.h"
 
+class CRPCCommand;
+
+namespace RPCServer
+{
+    void OnStarted(boost::function<void ()> slot);
+    void OnStopped(boost::function<void ()> slot);
+    void OnPreCommand(boost::function<void (const CRPCCommand&)> slot);
+    void OnPostCommand(boost::function<void (const CRPCCommand&)> slot);
+}
+
 class CBlockIndex;
 class CNetAddr;
 
@@ -88,7 +98,6 @@ public:
     std::string name;
     rpcfn_type actor;
     bool okSafeMode;
-    bool threadSafe;
     bool reqWallet;
 };
 
@@ -154,7 +163,6 @@ extern json_spirit::Value importwallet(const json_spirit::Array& params, bool fH
 extern json_spirit::Value getgenerate(const json_spirit::Array& params, bool fHelp); // in rpcmining.cpp
 extern json_spirit::Value setgenerate(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getnetworkhashps(const json_spirit::Array& params, bool fHelp);
-extern json_spirit::Value gethashespersec(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getmininginfo(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value prioritisetransaction(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getblocktemplate(const json_spirit::Array& params, bool fHelp);
@@ -227,8 +235,8 @@ extern json_spirit::Value reconsiderblock(const json_spirit::Array& params, bool
 
 // in rest.cpp
 extern bool HTTPReq_REST(AcceptedConnection *conn,
-                  std::string& strURI,
-                  std::map<std::string, std::string>& mapHeaders,
+                  const std::string& strURI,
+                  const std::map<std::string, std::string>& mapHeaders,
                   bool fRun);
 
 #endif // BITCOIN_RPCSERVER_H
diff --git a/src/rpcwallet.cpp b/src/rpcwallet.cpp
index d2d14ad9f4..1afc3c910e 100644
--- a/src/rpcwallet.cpp
+++ b/src/rpcwallet.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -12,6 +12,7 @@
 #include "netbase.h"
 #include "timedata.h"
 #include "util.h"
+#include "utilmoneystr.h"
 #include "wallet.h"
 #include "walletdb.h"
 
@@ -22,8 +23,6 @@
 #include "json/json_spirit_value.h"
 
 using namespace std;
-using namespace boost;
-using namespace boost::assign;
 using namespace json_spirit;
 
 int64_t nWalletUnlockTime;
@@ -80,19 +79,19 @@ Value getnewaddress(const Array& params, bool fHelp)
         throw runtime_error(
             "getnewaddress ( \"account\" )\n"
             "\nReturns a new Bitcoin address for receiving payments.\n"
-            "If 'account' is specified (recommended), it is added to the address book \n"
+            "If 'account' is specified (DEPRECATED), it is added to the address book \n"
             "so payments received with the address will be credited to 'account'.\n"
             "\nArguments:\n"
-            "1. \"account\"        (string, optional) The account name for the address to be linked to. if not provided, the default account \"\" is used. It can also be set to the empty string \"\" to represent the default account. The account does not need to exist, it will be created if there is no account by the given name.\n"
+            "1. \"account\"        (string, optional) DEPRECATED. The account name for the address to be linked to. If not provided, the default account \"\" is used. It can also be set to the empty string \"\" to represent the default account. The account does not need to exist, it will be created if there is no account by the given name.\n"
             "\nResult:\n"
             "\"bitcoinaddress\"    (string) The new bitcoin address\n"
             "\nExamples:\n"
             + HelpExampleCli("getnewaddress", "")
-            + HelpExampleCli("getnewaddress", "\"\"")
-            + HelpExampleCli("getnewaddress", "\"myaccount\"")
-            + HelpExampleRpc("getnewaddress", "\"myaccount\"")
+            + HelpExampleRpc("getnewaddress", "")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     // Parse the account first so we don't generate a key if there's an error
     string strAccount;
     if (params.size() > 0)
@@ -155,7 +154,7 @@ Value getaccountaddress(const Array& params, bool fHelp)
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaccountaddress \"account\"\n"
-            "\nReturns the current Bitcoin address for receiving payments to this account.\n"
+            "\nDEPRECATED. Returns the current Bitcoin address for receiving payments to this account.\n"
             "\nArguments:\n"
             "1. \"account\"       (string, required) The account name for the address. It can also be set to the empty string \"\" to represent the default account. The account does not need to exist, it will be created and a new address created  if there is no account by the given name.\n"
             "\nResult:\n"
@@ -167,13 +166,14 @@ Value getaccountaddress(const Array& params, bool fHelp)
             + HelpExampleRpc("getaccountaddress", "\"myaccount\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     // Parse the account first so we don't generate a key if there's an error
     string strAccount = AccountFromValue(params[0]);
 
     Value ret;
 
     ret = GetAccountAddress(strAccount).ToString();
-
     return ret;
 }
 
@@ -192,6 +192,8 @@ Value getrawchangeaddress(const Array& params, bool fHelp)
             + HelpExampleRpc("getrawchangeaddress", "")
        );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     if (!pwalletMain->IsLocked())
         pwalletMain->TopUpKeyPool();
 
@@ -213,7 +215,7 @@ Value setaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "setaccount \"bitcoinaddress\" \"account\"\n"
-            "\nSets the account associated with the given address.\n"
+            "\nDEPRECATED. Sets the account associated with the given address.\n"
             "\nArguments:\n"
             "1. \"bitcoinaddress\"  (string, required) The bitcoin address to be associated with an account.\n"
             "2. \"account\"         (string, required) The account to assign the address to.\n"
@@ -222,11 +224,12 @@ Value setaccount(const Array& params, bool fHelp)
             + HelpExampleRpc("setaccount", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\", \"tabby\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     CBitcoinAddress address(params[0].get_str());
     if (!address.IsValid())
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
 
-
     string strAccount;
     if (params.size() > 1)
         strAccount = AccountFromValue(params[1]);
@@ -255,7 +258,7 @@ Value getaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaccount \"bitcoinaddress\"\n"
-            "\nReturns the account associated with the given address.\n"
+            "\nDEPRECATED. Returns the account associated with the given address.\n"
             "\nArguments:\n"
             "1. \"bitcoinaddress\"  (string, required) The bitcoin address for account lookup.\n"
             "\nResult:\n"
@@ -265,6 +268,8 @@ Value getaccount(const Array& params, bool fHelp)
             + HelpExampleRpc("getaccount", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     CBitcoinAddress address(params[0].get_str());
     if (!address.IsValid())
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
@@ -282,7 +287,7 @@ Value getaddressesbyaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() != 1)
         throw runtime_error(
             "getaddressesbyaccount \"account\"\n"
-            "\nReturns the list of addresses for the given account.\n"
+            "\nDEPRECATED. Returns the list of addresses for the given account.\n"
             "\nArguments:\n"
             "1. \"account\"  (string, required) The account name.\n"
             "\nResult:\n"
@@ -295,6 +300,8 @@ Value getaddressesbyaccount(const Array& params, bool fHelp)
             + HelpExampleRpc("getaddressesbyaccount", "\"tabby\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     string strAccount = AccountFromValue(params[0]);
 
     // Find all addresses that have the given account
@@ -309,6 +316,40 @@ Value getaddressesbyaccount(const Array& params, bool fHelp)
     return ret;
 }
 
+void SendMoney(const CTxDestination &address, CAmount nValue, CWalletTx& wtxNew)
+{
+    // Check amount
+    if (nValue <= 0)
+        throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid amount");
+
+    if (nValue > pwalletMain->GetBalance())
+        throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Insufficient funds");
+
+    string strError;
+    if (pwalletMain->IsLocked())
+    {
+        strError = "Error: Wallet locked, unable to create transaction!";
+        LogPrintf("SendMoney(): %s", strError);
+        throw JSONRPCError(RPC_WALLET_ERROR, strError);
+    }
+
+    // Parse Bitcoin address
+    CScript scriptPubKey = GetScriptForDestination(address);
+
+    // Create and send the transaction
+    CReserveKey reservekey(pwalletMain);
+    CAmount nFeeRequired;
+    if (!pwalletMain->CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired, strError))
+    {
+        if (nValue + nFeeRequired > pwalletMain->GetBalance())
+            strError = strprintf("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds!", FormatMoney(nFeeRequired));
+        LogPrintf("SendMoney(): %s\n", strError);
+        throw JSONRPCError(RPC_WALLET_ERROR, strError);
+    }
+    if (!pwalletMain->CommitTransaction(wtxNew, reservekey))
+        throw JSONRPCError(RPC_WALLET_ERROR, "Error: The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
+}
+
 Value sendtoaddress(const Array& params, bool fHelp)
 {
     if (fHelp || params.size() < 2 || params.size() > 4)
@@ -332,6 +373,8 @@ Value sendtoaddress(const Array& params, bool fHelp)
             + HelpExampleRpc("sendtoaddress", "\"1M72Sfpbz1BPpXFHz9m3CdqATR44Jvaydd\", 0.1, \"donation\", \"seans outpost\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     CBitcoinAddress address(params[0].get_str());
     if (!address.IsValid())
         throw JSONRPCError(RPC_INVALID_ADDRESS_OR_KEY, "Invalid Bitcoin address");
@@ -348,9 +391,7 @@ Value sendtoaddress(const Array& params, bool fHelp)
 
     EnsureWalletIsUnlocked();
 
-    string strError = pwalletMain->SendMoney(address.Get(), nAmount, wtx);
-    if (strError != "")
-        throw JSONRPCError(RPC_WALLET_ERROR, strError);
+    SendMoney(address.Get(), nAmount, wtx);
 
     return wtx.GetHash().GetHex();
 }
@@ -369,7 +410,7 @@ Value listaddressgroupings(const Array& params, bool fHelp)
             "    [\n"
             "      \"bitcoinaddress\",     (string) The bitcoin address\n"
             "      amount,                 (numeric) The amount in btc\n"
-            "      \"account\"             (string, optional) The account\n"
+            "      \"account\"             (string, optional) The account (DEPRECATED)\n"
             "    ]\n"
             "    ,...\n"
             "  ]\n"
@@ -380,6 +421,8 @@ Value listaddressgroupings(const Array& params, bool fHelp)
             + HelpExampleRpc("listaddressgroupings", "")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     Array jsonGroupings;
     map<CTxDestination, CAmount> balances = pwalletMain->GetAddressBalances();
     BOOST_FOREACH(set<CTxDestination> grouping, pwalletMain->GetAddressGroupings())
@@ -425,6 +468,8 @@ Value signmessage(const Array& params, bool fHelp)
             + HelpExampleRpc("signmessage", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\", \"my message\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     EnsureWalletIsUnlocked();
 
     string strAddress = params[0].get_str();
@@ -475,6 +520,8 @@ Value getreceivedbyaddress(const Array& params, bool fHelp)
             + HelpExampleRpc("getreceivedbyaddress", "\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\", 6")
        );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     // Bitcoin address
     CBitcoinAddress address = CBitcoinAddress(params[0].get_str());
     if (!address.IsValid())
@@ -511,7 +558,7 @@ Value getreceivedbyaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() < 1 || params.size() > 2)
         throw runtime_error(
             "getreceivedbyaccount \"account\" ( minconf )\n"
-            "\nReturns the total amount received by addresses with <account> in transactions with at least [minconf] confirmations.\n"
+            "\nDEPRECATED. Returns the total amount received by addresses with <account> in transactions with at least [minconf] confirmations.\n"
             "\nArguments:\n"
             "1. \"account\"      (string, required) The selected account, may be the default account using \"\".\n"
             "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
@@ -528,6 +575,8 @@ Value getreceivedbyaccount(const Array& params, bool fHelp)
             + HelpExampleRpc("getreceivedbyaccount", "\"tabby\", 6")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     // Minimum confirmations
     int nMinDepth = 1;
     if (params.size() > 1)
@@ -596,28 +645,26 @@ Value getbalance(const Array& params, bool fHelp)
         throw runtime_error(
             "getbalance ( \"account\" minconf includeWatchonly )\n"
             "\nIf account is not specified, returns the server's total available balance.\n"
-            "If account is specified, returns the balance in the account.\n"
+            "If account is specified (DEPRECATED), returns the balance in the account.\n"
             "Note that the account \"\" is not the same as leaving the parameter out.\n"
             "The server total may be different to the balance in the default \"\" account.\n"
             "\nArguments:\n"
-            "1. \"account\"      (string, optional) The selected account, or \"*\" for entire wallet. It may be the default account using \"\".\n"
+            "1. \"account\"      (string, optional) DEPRECATED. The selected account, or \"*\" for entire wallet. It may be the default account using \"\".\n"
             "2. minconf          (numeric, optional, default=1) Only include transactions confirmed at least this many times.\n"
             "3. includeWatchonly (bool, optional, default=false) Also include balance in watchonly addresses (see 'importaddress')\n"
             "\nResult:\n"
             "amount              (numeric) The total amount in btc received for this account.\n"
             "\nExamples:\n"
-            "\nThe total amount in the server across all accounts\n"
+            "\nThe total amount in the wallet\n"
             + HelpExampleCli("getbalance", "") +
-            "\nThe total amount in the server across all accounts, with at least 5 confirmations\n"
+            "\nThe total amount in the wallet at least 5 blocks confirmed\n"
             + HelpExampleCli("getbalance", "\"*\" 6") +
-            "\nThe total amount in the default account with at least 1 confirmation\n"
-            + HelpExampleCli("getbalance", "\"\"") +
-            "\nThe total amount in the account named tabby with at least 6 confirmations\n"
-            + HelpExampleCli("getbalance", "\"tabby\" 6") +
             "\nAs a json rpc call\n"
-            + HelpExampleRpc("getbalance", "\"tabby\", 6")
+            + HelpExampleRpc("getbalance", "\"*\", 6")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     if (params.size() == 0)
         return  ValueFromAmount(pwalletMain->GetBalance());
 
@@ -670,6 +717,9 @@ Value getunconfirmedbalance(const Array &params, bool fHelp)
         throw runtime_error(
                 "getunconfirmedbalance\n"
                 "Returns the server's total unconfirmed balance\n");
+
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     return ValueFromAmount(pwalletMain->GetUnconfirmedBalance());
 }
 
@@ -679,7 +729,7 @@ Value movecmd(const Array& params, bool fHelp)
     if (fHelp || params.size() < 3 || params.size() > 5)
         throw runtime_error(
             "move \"fromaccount\" \"toaccount\" amount ( minconf \"comment\" )\n"
-            "\nMove a specified amount from one account in your wallet to another.\n"
+            "\nDEPRECATED. Move a specified amount from one account in your wallet to another.\n"
             "\nArguments:\n"
             "1. \"fromaccount\"   (string, required) The name of the account to move funds from. May be the default account using \"\".\n"
             "2. \"toaccount\"     (string, required) The name of the account to move funds to. May be the default account using \"\".\n"
@@ -696,6 +746,8 @@ Value movecmd(const Array& params, bool fHelp)
             + HelpExampleRpc("move", "\"timotei\", \"akiko\", 0.01, 6, \"happy birthday!\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     string strFrom = AccountFromValue(params[0]);
     string strTo = AccountFromValue(params[1]);
     CAmount nAmount = AmountFromValue(params[2]);
@@ -744,7 +796,7 @@ Value sendfrom(const Array& params, bool fHelp)
     if (fHelp || params.size() < 3 || params.size() > 6)
         throw runtime_error(
             "sendfrom \"fromaccount\" \"tobitcoinaddress\" amount ( minconf \"comment\" \"comment-to\" )\n"
-            "\nSent an amount from an account to a bitcoin address.\n"
+            "\nDEPRECATED (use sendtoaddress). Sent an amount from an account to a bitcoin address.\n"
             "The amount is a real and is rounded to the nearest 0.00000001."
             + HelpRequiringPassphrase() + "\n"
             "\nArguments:\n"
@@ -768,6 +820,8 @@ Value sendfrom(const Array& params, bool fHelp)
             + HelpExampleRpc("sendfrom", "\"tabby\", \"1M72Sfpbz1BPpXFHz9m3CdqATR44Jvaydd\", 0.01, 6, \"donation\", \"seans outpost\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     string strAccount = AccountFromValue(params[0]);
     CBitcoinAddress address(params[1].get_str());
     if (!address.IsValid())
@@ -791,10 +845,7 @@ Value sendfrom(const Array& params, bool fHelp)
     if (nAmount > nBalance)
         throw JSONRPCError(RPC_WALLET_INSUFFICIENT_FUNDS, "Account has insufficient funds");
 
-    // Send
-    string strError = pwalletMain->SendMoney(address.Get(), nAmount, wtx);
-    if (strError != "")
-        throw JSONRPCError(RPC_WALLET_ERROR, strError);
+    SendMoney(address.Get(), nAmount, wtx);
 
     return wtx.GetHash().GetHex();
 }
@@ -808,7 +859,7 @@ Value sendmany(const Array& params, bool fHelp)
             "\nSend multiple times. Amounts are double-precision floating point numbers."
             + HelpRequiringPassphrase() + "\n"
             "\nArguments:\n"
-            "1. \"fromaccount\"         (string, required) The account to send the funds from, can be \"\" for the default account\n"
+            "1. \"fromaccount\"         (string, required) DEPRECATED. The account to send the funds from. Should be \"\" for the default account\n"
             "2. \"amounts\"             (string, required) A json object with addresses and amounts\n"
             "    {\n"
             "      \"address\":amount   (numeric) The bitcoin address is the key, the numeric amount in btc is the value\n"
@@ -821,13 +872,15 @@ Value sendmany(const Array& params, bool fHelp)
             "                                    the number of addresses.\n"
             "\nExamples:\n"
             "\nSend two amounts to two different addresses:\n"
-            + HelpExampleCli("sendmany", "\"tabby\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\"") +
+            + HelpExampleCli("sendmany", "\"\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\"") +
             "\nSend two amounts to two different addresses setting the confirmation and comment:\n"
-            + HelpExampleCli("sendmany", "\"tabby\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\" 6 \"testing\"") +
+            + HelpExampleCli("sendmany", "\"\" \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\" 6 \"testing\"") +
             "\nAs a json rpc call\n"
-            + HelpExampleRpc("sendmany", "\"tabby\", \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\", 6, \"testing\"")
+            + HelpExampleRpc("sendmany", "\"\", \"{\\\"1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4XZ\\\":0.01,\\\"1353tsE8YMTA4EuV7dgUXGjNFf9KpVvKHz\\\":0.02}\", 6, \"testing\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     string strAccount = AccountFromValue(params[0]);
     Object sendTo = params[1].get_obj();
     int nMinDepth = 1;
@@ -890,7 +943,7 @@ Value addmultisigaddress(const Array& params, bool fHelp)
         string msg = "addmultisigaddress nrequired [\"key\",...] ( \"account\" )\n"
             "\nAdd a nrequired-to-sign multisignature address to the wallet.\n"
             "Each key is a Bitcoin address or hex-encoded public key.\n"
-            "If 'account' is specified, assign address to that account.\n"
+            "If 'account' is specified (DEPRECATED), assign address to that account.\n"
 
             "\nArguments:\n"
             "1. nrequired        (numeric, required) The number of required signatures out of the n keys or addresses.\n"
@@ -899,7 +952,7 @@ Value addmultisigaddress(const Array& params, bool fHelp)
             "       \"address\"  (string) bitcoin address or hex-encoded public key\n"
             "       ...,\n"
             "     ]\n"
-            "3. \"account\"      (string, optional) An account to assign the addresses to.\n"
+            "3. \"account\"      (string, optional) DEPRECATED. An account to assign the addresses to.\n"
 
             "\nResult:\n"
             "\"bitcoinaddress\"  (string) A bitcoin address associated with the keys.\n"
@@ -913,6 +966,8 @@ Value addmultisigaddress(const Array& params, bool fHelp)
         throw runtime_error(msg);
     }
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     string strAccount;
     if (params.size() > 2)
         strAccount = AccountFromValue(params[2]);
@@ -1073,9 +1128,9 @@ Value listreceivedbyaddress(const Array& params, bool fHelp)
             "\nResult:\n"
             "[\n"
             "  {\n"
-            "    \"involvesWatchonly\" : \"true\",    (bool) Only returned if imported addresses were involved in transaction\n"
+            "    \"involvesWatchonly\" : true,        (bool) Only returned if imported addresses were involved in transaction\n"
             "    \"address\" : \"receivingaddress\",  (string) The receiving address\n"
-            "    \"account\" : \"accountname\",       (string) The account of the receiving address. The default account is \"\".\n"
+            "    \"account\" : \"accountname\",       (string) DEPRECATED. The account of the receiving address. The default account is \"\".\n"
             "    \"amount\" : x.xxx,                  (numeric) The total amount in btc received by the address\n"
             "    \"confirmations\" : n                (numeric) The number of confirmations of the most recent transaction included\n"
             "  }\n"
@@ -1088,6 +1143,8 @@ Value listreceivedbyaddress(const Array& params, bool fHelp)
             + HelpExampleRpc("listreceivedbyaddress", "6, true, true")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     return ListReceived(params, false);
 }
 
@@ -1096,7 +1153,7 @@ Value listreceivedbyaccount(const Array& params, bool fHelp)
     if (fHelp || params.size() > 3)
         throw runtime_error(
             "listreceivedbyaccount ( minconf includeempty includeWatchonly)\n"
-            "\nList balances by account.\n"
+            "\nDEPRECATED. List balances by account.\n"
             "\nArguments:\n"
             "1. minconf      (numeric, optional, default=1) The minimum number of confirmations before payments are included.\n"
             "2. includeempty (boolean, optional, default=false) Whether to include accounts that haven't received any payments.\n"
@@ -1105,7 +1162,7 @@ Value listreceivedbyaccount(const Array& params, bool fHelp)
             "\nResult:\n"
             "[\n"
             "  {\n"
-            "    \"involvesWatchonly\" : \"true\",    (bool) Only returned if imported addresses were involved in transaction\n"
+            "    \"involvesWatchonly\" : true,   (bool) Only returned if imported addresses were involved in transaction\n"
             "    \"account\" : \"accountname\",  (string) The account name of the receiving account\n"
             "    \"amount\" : x.xxx,             (numeric) The total amount received by addresses with this account\n"
             "    \"confirmations\" : n           (numeric) The number of confirmations of the most recent transaction included\n"
@@ -1119,6 +1176,8 @@ Value listreceivedbyaccount(const Array& params, bool fHelp)
             + HelpExampleRpc("listreceivedbyaccount", "6, true, true")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     return ListReceived(params, true);
 }
 
@@ -1223,15 +1282,14 @@ Value listtransactions(const Array& params, bool fHelp)
             "listtransactions ( \"account\" count from includeWatchonly)\n"
             "\nReturns up to 'count' most recent transactions skipping the first 'from' transactions for account 'account'.\n"
             "\nArguments:\n"
-            "1. \"account\"    (string, optional) The account name. If not included, it will list all transactions for all accounts.\n"
-            "                                     If \"\" is set, it will list transactions for the default account.\n"
+            "1. \"account\"    (string, optional) DEPRECATED. The account name. Should be \"*\".\n"
             "2. count          (numeric, optional, default=10) The number of transactions to return\n"
             "3. from           (numeric, optional, default=0) The number of transactions to skip\n"
             "4. includeWatchonly (bool, optional, default=false) Include transactions to watchonly addresses (see 'importaddress')\n"
             "\nResult:\n"
             "[\n"
             "  {\n"
-            "    \"account\":\"accountname\",       (string) The account name associated with the transaction. \n"
+            "    \"account\":\"accountname\",       (string) DEPRECATED. The account name associated with the transaction. \n"
             "                                                It will be \"\" for the default account.\n"
             "    \"address\":\"bitcoinaddress\",    (string) The bitcoin address of the transaction. Not present for \n"
             "                                                move transactions (category = move).\n"
@@ -1265,14 +1323,14 @@ Value listtransactions(const Array& params, bool fHelp)
             "\nExamples:\n"
             "\nList the most recent 10 transactions in the systems\n"
             + HelpExampleCli("listtransactions", "") +
-            "\nList the most recent 10 transactions for the tabby account\n"
-            + HelpExampleCli("listtransactions", "\"tabby\"") +
-            "\nList transactions 100 to 120 from the tabby account\n"
-            + HelpExampleCli("listtransactions", "\"tabby\" 20 100") +
+            "\nList transactions 100 to 120\n"
+            + HelpExampleCli("listtransactions", "\"*\" 20 100") +
             "\nAs a json rpc call\n"
-            + HelpExampleRpc("listtransactions", "\"tabby\", 20, 100")
+            + HelpExampleRpc("listtransactions", "\"*\", 20, 100")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     string strAccount = "*";
     if (params.size() > 0)
         strAccount = params[0].get_str();
@@ -1333,7 +1391,7 @@ Value listaccounts(const Array& params, bool fHelp)
     if (fHelp || params.size() > 2)
         throw runtime_error(
             "listaccounts ( minconf includeWatchonly)\n"
-            "\nReturns Object that has account names as keys, account balances as values.\n"
+            "\nDEPRECATED. Returns Object that has account names as keys, account balances as values.\n"
             "\nArguments:\n"
             "1. minconf          (numeric, optional, default=1) Only include transactions with at least this many confirmations\n"
             "2. includeWatchonly (bool, optional, default=false) Include balances in watchonly addresses (see 'importaddress')\n"
@@ -1353,6 +1411,8 @@ Value listaccounts(const Array& params, bool fHelp)
             + HelpExampleRpc("listaccounts", "6")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     int nMinDepth = 1;
     if (params.size() > 0)
         nMinDepth = params[0].get_int();
@@ -1416,7 +1476,7 @@ Value listsinceblock(const Array& params, bool fHelp)
             "\nResult:\n"
             "{\n"
             "  \"transactions\": [\n"
-            "    \"account\":\"accountname\",       (string) The account name associated with the transaction. Will be \"\" for the default account.\n"
+            "    \"account\":\"accountname\",       (string) DEPRECATED. The account name associated with the transaction. Will be \"\" for the default account.\n"
             "    \"address\":\"bitcoinaddress\",    (string) The bitcoin address of the transaction. Not present for move transactions (category = move).\n"
             "    \"category\":\"send|receive\",     (string) The transaction category. 'send' has negative amounts, 'receive' has positive amounts.\n"
             "    \"amount\": x.xxx,          (numeric) The amount in btc. This is negative for the 'send' category, and for the 'move' category for moves \n"
@@ -1441,13 +1501,15 @@ Value listsinceblock(const Array& params, bool fHelp)
             + HelpExampleRpc("listsinceblock", "\"000000000000000bacf66f7497b7dc45ef753ee9a7d38571037cdb1a57f663ad\", 6")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     CBlockIndex *pindex = NULL;
     int target_confirms = 1;
     isminefilter filter = ISMINE_SPENDABLE;
 
     if (params.size() > 0)
     {
-        uint256 blockId = 0;
+        uint256 blockId;
 
         blockId.SetHex(params[0].get_str());
         BlockMap::iterator it = mapBlockIndex.find(blockId);
@@ -1480,7 +1542,7 @@ Value listsinceblock(const Array& params, bool fHelp)
     }
 
     CBlockIndex *pblockLast = chainActive[chainActive.Height() + 1 - target_confirms];
-    uint256 lastblock = pblockLast ? pblockLast->GetBlockHash() : 0;
+    uint256 lastblock = pblockLast ? pblockLast->GetBlockHash() : uint256();
 
     Object ret;
     ret.push_back(Pair("transactions", transactions));
@@ -1510,7 +1572,7 @@ Value gettransaction(const Array& params, bool fHelp)
             "  \"timereceived\" : ttt,    (numeric) The time received in seconds since epoch (1 Jan 1970 GMT)\n"
             "  \"details\" : [\n"
             "    {\n"
-            "      \"account\" : \"accountname\",  (string) The account name involved in the transaction, can be \"\" for the default account.\n"
+            "      \"account\" : \"accountname\",  (string) DEPRECATED. The account name involved in the transaction, can be \"\" for the default account.\n"
             "      \"address\" : \"bitcoinaddress\",   (string) The bitcoin address involved in the transaction\n"
             "      \"category\" : \"send|receive\",    (string) The category, either 'send' or 'receive'\n"
             "      \"amount\" : x.xxx                  (numeric) The amount in btc\n"
@@ -1527,6 +1589,8 @@ Value gettransaction(const Array& params, bool fHelp)
             + HelpExampleRpc("gettransaction", "\"1075db55d416d3ca199f55b6084e2115b9345e16c5cf302fc80e9d5fbf5d48d\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     uint256 hash;
     hash.SetHex(params[0].get_str());
 
@@ -1575,6 +1639,8 @@ Value backupwallet(const Array& params, bool fHelp)
             + HelpExampleRpc("backupwallet", "\"backup.dat\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     string strDest = params[0].get_str();
     if (!BackupWallet(*pwalletMain, strDest))
         throw JSONRPCError(RPC_WALLET_ERROR, "Error: Wallet backup failed!");
@@ -1597,6 +1663,8 @@ Value keypoolrefill(const Array& params, bool fHelp)
             + HelpExampleRpc("keypoolrefill", "")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     // 0 is interpreted by TopUpKeyPool() as the default keypool size given by -keypool
     unsigned int kpSize = 0;
     if (params.size() > 0) {
@@ -1644,6 +1712,8 @@ Value walletpassphrase(const Array& params, bool fHelp)
             + HelpExampleRpc("walletpassphrase", "\"my pass phrase\", 60")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     if (fHelp)
         return true;
     if (!pwalletMain->IsCrypted())
@@ -1691,6 +1761,8 @@ Value walletpassphrasechange(const Array& params, bool fHelp)
             + HelpExampleRpc("walletpassphrasechange", "\"old one\", \"new one\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     if (fHelp)
         return true;
     if (!pwalletMain->IsCrypted())
@@ -1737,6 +1809,8 @@ Value walletlock(const Array& params, bool fHelp)
             + HelpExampleRpc("walletlock", "")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     if (fHelp)
         return true;
     if (!pwalletMain->IsCrypted())
@@ -1778,6 +1852,8 @@ Value encryptwallet(const Array& params, bool fHelp)
             + HelpExampleRpc("encryptwallet", "\"my pass phrase\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     if (fHelp)
         return true;
     if (pwalletMain->IsCrypted())
@@ -1842,10 +1918,12 @@ Value lockunspent(const Array& params, bool fHelp)
             + HelpExampleRpc("lockunspent", "false, \"[{\\\"txid\\\":\\\"a08e6907dbbd3d809776dbfc5d82e371b764ed838b5655e72f463568df1aadf0\\\",\\\"vout\\\":1}]\"")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     if (params.size() == 1)
-        RPCTypeCheck(params, list_of(bool_type));
+        RPCTypeCheck(params, boost::assign::list_of(bool_type));
     else
-        RPCTypeCheck(params, list_of(bool_type)(array_type));
+        RPCTypeCheck(params, boost::assign::list_of(bool_type)(array_type));
 
     bool fUnlock = params[0].get_bool();
 
@@ -1862,7 +1940,7 @@ Value lockunspent(const Array& params, bool fHelp)
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, expected object");
         const Object& o = output.get_obj();
 
-        RPCTypeCheck(o, map_list_of("txid", str_type)("vout", int_type));
+        RPCTypeCheck(o, boost::assign::map_list_of("txid", str_type)("vout", int_type));
 
         string txid = find_value(o, "txid").get_str();
         if (!IsHex(txid))
@@ -1872,7 +1950,7 @@ Value lockunspent(const Array& params, bool fHelp)
         if (nOutput < 0)
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Invalid parameter, vout must be positive");
 
-        COutPoint outpt(uint256(txid), nOutput);
+        COutPoint outpt(uint256S(txid), nOutput);
 
         if (fUnlock)
             pwalletMain->UnlockCoin(outpt);
@@ -1911,6 +1989,8 @@ Value listlockunspent(const Array& params, bool fHelp)
             + HelpExampleRpc("listlockunspent", "")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     vector<COutPoint> vOutpts;
     pwalletMain->ListLockedCoins(vOutpts);
 
@@ -1942,6 +2022,8 @@ Value settxfee(const Array& params, bool fHelp)
             + HelpExampleRpc("settxfee", "0.00001")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     // Amount
     CAmount nAmount = 0;
     if (params[0].get_real() != 0.0)
@@ -1960,7 +2042,9 @@ Value getwalletinfo(const Array& params, bool fHelp)
             "\nResult:\n"
             "{\n"
             "  \"walletversion\": xxxxx,     (numeric) the wallet version\n"
-            "  \"balance\": xxxxxxx,         (numeric) the total bitcoin balance of the wallet\n"
+            "  \"balance\": xxxxxxx,         (numeric) the total confirmed bitcoin balance of the wallet\n"
+            "  \"unconfirmed_balance\": xxx, (numeric) the total unconfirmed bitcoin balance of the wallet\n"
+            "  \"immature_balance\": xxxxxx, (numeric) the total immature balance of the wallet\n"
             "  \"txcount\": xxxxxxx,         (numeric) the total number of transactions in the wallet\n"
             "  \"keypoololdest\": xxxxxx,    (numeric) the timestamp (seconds since GMT epoch) of the oldest pre-generated key in the key pool\n"
             "  \"keypoolsize\": xxxx,        (numeric) how many new keys are pre-generated\n"
@@ -1971,9 +2055,13 @@ Value getwalletinfo(const Array& params, bool fHelp)
             + HelpExampleRpc("getwalletinfo", "")
         );
 
+    LOCK2(cs_main, pwalletMain->cs_wallet);
+
     Object obj;
     obj.push_back(Pair("walletversion", pwalletMain->GetVersion()));
     obj.push_back(Pair("balance",       ValueFromAmount(pwalletMain->GetBalance())));
+    obj.push_back(Pair("unconfirmed_balance", ValueFromAmount(pwalletMain->GetUnconfirmedBalance())));
+    obj.push_back(Pair("immature_balance",    ValueFromAmount(pwalletMain->GetImmatureBalance())));
     obj.push_back(Pair("txcount",       (int)pwalletMain->mapWallet.size()));
     obj.push_back(Pair("keypoololdest", pwalletMain->GetOldestKeyPoolTime()));
     obj.push_back(Pair("keypoolsize",   (int)pwalletMain->GetKeyPoolSize()));
diff --git a/src/script/bitcoinconsensus.cpp b/src/script/bitcoinconsensus.cpp
index d4fd2ad7d9..b0d5faaf77 100644
--- a/src/script/bitcoinconsensus.cpp
+++ b/src/script/bitcoinconsensus.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -78,8 +78,8 @@ int bitcoinconsensus_verify_script(const unsigned char *scriptPubKey, unsigned i
          // Regardless of the verification result, the tx did not error.
          set_error(err, bitcoinconsensus_ERR_OK);
 
-        return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), flags, SignatureChecker(tx, nIn), NULL);
-    } catch (std::exception &e) {
+        return VerifyScript(tx.vin[nIn].scriptSig, CScript(scriptPubKey, scriptPubKey + scriptPubKeyLen), flags, TransactionSignatureChecker(&tx, nIn), NULL);
+    } catch (const std::exception&) {
         return set_error(err, bitcoinconsensus_ERR_TX_DESERIALIZE); // Error deserializing
     }
 }
diff --git a/src/script/bitcoinconsensus.h b/src/script/bitcoinconsensus.h
index 15e3337a8d..0320577797 100644
--- a/src/script/bitcoinconsensus.h
+++ b/src/script/bitcoinconsensus.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -46,6 +46,7 @@ enum
 {
     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_NONE      = 0,
     bitcoinconsensus_SCRIPT_FLAGS_VERIFY_P2SH      = (1U << 0), // evaluate P2SH (BIP16) subscripts
+    bitcoinconsensus_SCRIPT_FLAGS_VERIFY_DERSIG    = (1U << 2), // enforce strict DER (BIP66) compliance
 };
 
 /// Returns 1 if the input nIn of the serialized transaction pointed to by
diff --git a/src/script/interpreter.cpp b/src/script/interpreter.cpp
index 3231f2e74e..84a7432fdb 100644
--- a/src/script/interpreter.cpp
+++ b/src/script/interpreter.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -60,7 +60,7 @@ bool CastToBool(const valtype& vch)
 static inline void popstack(vector<valtype>& stack)
 {
     if (stack.empty())
-        throw runtime_error("popstack() : stack empty");
+        throw runtime_error("popstack(): stack empty");
     stack.pop_back();
 }
 
@@ -93,76 +93,76 @@ bool static IsCompressedOrUncompressedPubKey(const valtype &vchPubKey) {
  * in which case a single 0 byte is necessary and even required).
  * 
  * See https://bitcointalk.org/index.php?topic=8392.msg127623#msg127623
+ *
+ * This function is consensus-critical since BIP66.
  */
-bool static IsDERSignature(const valtype &vchSig) {
+bool static IsValidSignatureEncoding(const std::vector<unsigned char> &sig) {
+    // Format: 0x30 [total-length] 0x02 [R-length] [R] 0x02 [S-length] [S] [sighash]
+    // * total-length: 1-byte length descriptor of everything that follows,
+    //   excluding the sighash byte.
+    // * R-length: 1-byte length descriptor of the R value that follows.
+    // * R: arbitrary-length big-endian encoded R value. It must use the shortest
+    //   possible encoding for a positive integers (which means no null bytes at
+    //   the start, except a single one when the next byte has its highest bit set).
+    // * S-length: 1-byte length descriptor of the S value that follows.
+    // * S: arbitrary-length big-endian encoded S value. The same rules apply.
+    // * sighash: 1-byte value indicating what data is hashed (not part of the DER
+    //   signature)
 
-    if (vchSig.size() < 9) {
-        //  Non-canonical signature: too short
-        return false;
-    }
-    if (vchSig.size() > 73) {
-        // Non-canonical signature: too long
-        return false;
-    }
-    if (vchSig[0] != 0x30) {
-        //  Non-canonical signature: wrong type
-        return false;
-    }
-    if (vchSig[1] != vchSig.size()-3) {
-        //  Non-canonical signature: wrong length marker
-        return false;
-    }
-    unsigned int nLenR = vchSig[3];
-    if (5 + nLenR >= vchSig.size()) {
-        //  Non-canonical signature: S length misplaced
-        return false;
-    }
-    unsigned int nLenS = vchSig[5+nLenR];
-    if ((unsigned long)(nLenR+nLenS+7) != vchSig.size()) {
-        //  Non-canonical signature: R+S length mismatch
-        return false;
-    }
+    // Minimum and maximum size constraints.
+    if (sig.size() < 9) return false;
+    if (sig.size() > 73) return false;
 
-    const unsigned char *R = &vchSig[4];
-    if (R[-2] != 0x02) {
-        //  Non-canonical signature: R value type mismatch
-        return false;
-    }
-    if (nLenR == 0) {
-        //  Non-canonical signature: R length is zero
-        return false;
-    }
-    if (R[0] & 0x80) {
-        //  Non-canonical signature: R value negative
-        return false;
-    }
-    if (nLenR > 1 && (R[0] == 0x00) && !(R[1] & 0x80)) {
-        //  Non-canonical signature: R value excessively padded
-        return false;
-    }
+    // A signature is of type 0x30 (compound).
+    if (sig[0] != 0x30) return false;
+
+    // Make sure the length covers the entire signature.
+    if (sig[1] != sig.size() - 3) return false;
+
+    // Extract the length of the R element.
+    unsigned int lenR = sig[3];
+
+    // Make sure the length of the S element is still inside the signature.
+    if (5 + lenR >= sig.size()) return false;
+
+    // Extract the length of the S element.
+    unsigned int lenS = sig[5 + lenR];
+
+    // Verify that the length of the signature matches the sum of the length
+    // of the elements.
+    if ((size_t)(lenR + lenS + 7) != sig.size()) return false;
+ 
+    // Check whether the R element is an integer.
+    if (sig[2] != 0x02) return false;
+
+    // Zero-length integers are not allowed for R.
+    if (lenR == 0) return false;
+
+    // Negative numbers are not allowed for R.
+    if (sig[4] & 0x80) return false;
+
+    // Null bytes at the start of R are not allowed, unless R would
+    // otherwise be interpreted as a negative number.
+    if (lenR > 1 && (sig[4] == 0x00) && !(sig[5] & 0x80)) return false;
+
+    // Check whether the S element is an integer.
+    if (sig[lenR + 4] != 0x02) return false;
+
+    // Zero-length integers are not allowed for S.
+    if (lenS == 0) return false;
+
+    // Negative numbers are not allowed for S.
+    if (sig[lenR + 6] & 0x80) return false;
+
+    // Null bytes at the start of S are not allowed, unless S would otherwise be
+    // interpreted as a negative number.
+    if (lenS > 1 && (sig[lenR + 6] == 0x00) && !(sig[lenR + 7] & 0x80)) return false;
 
-    const unsigned char *S = &vchSig[6+nLenR];
-    if (S[-2] != 0x02) {
-        //  Non-canonical signature: S value type mismatch
-        return false;
-    }
-    if (nLenS == 0) {
-        //  Non-canonical signature: S length is zero
-        return false;
-    }
-    if (S[0] & 0x80) {
-        //  Non-canonical signature: S value negative
-        return false;
-    }
-    if (nLenS > 1 && (S[0] == 0x00) && !(S[1] & 0x80)) {
-        //  Non-canonical signature: S value excessively padded
-        return false;
-    }
     return true;
 }
 
 bool static IsLowDERSignature(const valtype &vchSig, ScriptError* serror) {
-    if (!IsDERSignature(vchSig)) {
+    if (!IsValidSignatureEncoding(vchSig)) {
         return set_error(serror, SCRIPT_ERR_SIG_DER);
     }
     unsigned int nLenR = vchSig[3];
@@ -189,7 +189,12 @@ bool static IsDefinedHashtypeSignature(const valtype &vchSig) {
 }
 
 bool static CheckSignatureEncoding(const valtype &vchSig, unsigned int flags, ScriptError* serror) {
-    if ((flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | SCRIPT_VERIFY_STRICTENC)) != 0 && !IsDERSignature(vchSig)) {
+    // Empty signature. Not strictly DER encoded, but allowed to provide a
+    // compact way to provide an invalid signature for use with CHECK(MULTI)SIG
+    if (vchSig.size() == 0) {
+        return true;
+    }
+    if ((flags & (SCRIPT_VERIFY_DERSIG | SCRIPT_VERIFY_LOW_S | SCRIPT_VERIFY_STRICTENC)) != 0 && !IsValidSignatureEncoding(vchSig)) {
         return set_error(serror, SCRIPT_ERR_SIG_DER);
     } else if ((flags & SCRIPT_VERIFY_LOW_S) != 0 && !IsLowDERSignature(vchSig, serror)) {
         // serror is set
@@ -1030,16 +1035,17 @@ public:
 
 uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType)
 {
+    static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
     if (nIn >= txTo.vin.size()) {
         //  nIn out of range
-        return 1;
+        return one;
     }
 
     // Check for invalid use of SIGHASH_SINGLE
     if ((nHashType & 0x1f) == SIGHASH_SINGLE) {
         if (nIn >= txTo.vout.size()) {
             //  nOut out of range
-            return 1;
+            return one;
         }
     }
 
@@ -1052,12 +1058,12 @@ uint256 SignatureHash(const CScript& scriptCode, const CTransaction& txTo, unsig
     return ss.GetHash();
 }
 
-bool SignatureChecker::VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& pubkey, const uint256& sighash) const
+bool TransactionSignatureChecker::VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& pubkey, const uint256& sighash) const
 {
     return pubkey.Verify(sighash, vchSig);
 }
 
-bool SignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn, const vector<unsigned char>& vchPubKey, const CScript& scriptCode) const
+bool TransactionSignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn, const vector<unsigned char>& vchPubKey, const CScript& scriptCode) const
 {
     CPubKey pubkey(vchPubKey);
     if (!pubkey.IsValid())
@@ -1070,7 +1076,7 @@ bool SignatureChecker::CheckSig(const vector<unsigned char>& vchSigIn, const vec
     int nHashType = vchSig.back();
     vchSig.pop_back();
 
-    uint256 sighash = SignatureHash(scriptCode, txTo, nIn, nHashType);
+    uint256 sighash = SignatureHash(scriptCode, *txTo, nIn, nHashType);
 
     if (!VerifySignature(vchSig, pubkey, sighash))
         return false;
@@ -1097,7 +1103,6 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigne
         return false;
     if (stack.empty())
         return set_error(serror, SCRIPT_ERR_EVAL_FALSE);
-
     if (CastToBool(stack.back()) == false)
         return set_error(serror, SCRIPT_ERR_EVAL_FALSE);
 
@@ -1108,24 +1113,37 @@ bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigne
         if (!scriptSig.IsPushOnly())
             return set_error(serror, SCRIPT_ERR_SIG_PUSHONLY);
 
-        // stackCopy cannot be empty here, because if it was the
+        // Restore stack.
+        swap(stack, stackCopy);
+
+        // stack cannot be empty here, because if it was the
         // P2SH  HASH <> EQUAL  scriptPubKey would be evaluated with
         // an empty stack and the EvalScript above would return false.
-        assert(!stackCopy.empty());
+        assert(!stack.empty());
 
-        const valtype& pubKeySerialized = stackCopy.back();
+        const valtype& pubKeySerialized = stack.back();
         CScript pubKey2(pubKeySerialized.begin(), pubKeySerialized.end());
-        popstack(stackCopy);
+        popstack(stack);
 
-        if (!EvalScript(stackCopy, pubKey2, flags, checker, serror))
+        if (!EvalScript(stack, pubKey2, flags, checker, serror))
             // serror is set
             return false;
-        if (stackCopy.empty())
+        if (stack.empty())
             return set_error(serror, SCRIPT_ERR_EVAL_FALSE);
-        if (!CastToBool(stackCopy.back()))
+        if (!CastToBool(stack.back()))
             return set_error(serror, SCRIPT_ERR_EVAL_FALSE);
-        else
-            return set_success(serror);
+    }
+
+    // The CLEANSTACK check is only performed after potential P2SH evaluation,
+    // as the non-P2SH evaluation of a P2SH script will obviously not result in
+    // a clean stack (the P2SH inputs remain).
+    if ((flags & SCRIPT_VERIFY_CLEANSTACK) != 0) {
+        // Disallow CLEANSTACK without P2SH, as otherwise a switch CLEANSTACK->P2SH+CLEANSTACK
+        // would be possible, which is not a softfork (and P2SH should be one).
+        assert((flags & SCRIPT_VERIFY_P2SH) != 0);
+        if (stack.size() != 1) {
+            return set_error(serror, SCRIPT_ERR_CLEANSTACK);
+        }
     }
 
     return set_success(serror);
diff --git a/src/script/interpreter.h b/src/script/interpreter.h
index 35b2f6c65a..fc64438f68 100644
--- a/src/script/interpreter.h
+++ b/src/script/interpreter.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -7,6 +7,7 @@
 #define BITCOIN_SCRIPT_INTERPRETER_H
 
 #include "script_error.h"
+#include "primitives/transaction.h"
 
 #include <vector>
 #include <stdint.h>
@@ -67,8 +68,14 @@ enum
     // discouraged NOPs fails the script. This verification flag will never be
     // a mandatory flag applied to scripts in a block. NOPs that are not
     // executed, e.g.  within an unexecuted IF ENDIF block, are *not* rejected.
-    SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS  = (1U << 7)
-
+    SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS  = (1U << 7),
+
+    // Require that only a single stack element remains after evaluation. This changes the success criterion from
+    // "At least one stack element must remain, and when interpreted as a boolean, it must be true" to
+    // "Exactly one stack element must remain, and when interpreted as a boolean, it must be true".
+    // (softfork safe, BIP62 rule 6)
+    // Note: CLEANSTACK should never be used without P2SH.
+    SCRIPT_VERIFY_CLEANSTACK = (1U << 8),
 };
 
 uint256 SignatureHash(const CScript &scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType);
@@ -84,20 +91,29 @@ public:
     virtual ~BaseSignatureChecker() {}
 };
 
-class SignatureChecker : public BaseSignatureChecker
+class TransactionSignatureChecker : public BaseSignatureChecker
 {
 private:
-    const CTransaction& txTo;
+    const CTransaction* txTo;
     unsigned int nIn;
 
 protected:
     virtual bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
 
 public:
-    SignatureChecker(const CTransaction& txToIn, unsigned int nInIn) : txTo(txToIn), nIn(nInIn) {}
+    TransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn) : txTo(txToIn), nIn(nInIn) {}
     bool CheckSig(const std::vector<unsigned char>& scriptSig, const std::vector<unsigned char>& vchPubKey, const CScript& scriptCode) const;
 };
 
+class MutableTransactionSignatureChecker : public TransactionSignatureChecker
+{
+private:
+    const CTransaction txTo;
+
+public:
+    MutableTransactionSignatureChecker(const CMutableTransaction* txToIn, unsigned int nInIn) : TransactionSignatureChecker(&txTo, nInIn), txTo(*txToIn) {}
+};
+
 bool EvalScript(std::vector<std::vector<unsigned char> >& stack, const CScript& script, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* error = NULL);
 bool VerifyScript(const CScript& scriptSig, const CScript& scriptPubKey, unsigned int flags, const BaseSignatureChecker& checker, ScriptError* error = NULL);
 
diff --git a/src/script/script.cpp b/src/script/script.cpp
index b879d72d6b..fd33924732 100644
--- a/src/script/script.cpp
+++ b/src/script/script.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/script/script.h b/src/script/script.h
index 9c22cb908c..8b36aa2f50 100644
--- a/src/script/script.h
+++ b/src/script/script.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -391,7 +391,7 @@ public:
     CScript& operator<<(opcodetype opcode)
     {
         if (opcode < 0 || opcode > 0xff)
-            throw std::runtime_error("CScript::operator<<() : invalid opcode");
+            throw std::runtime_error("CScript::operator<<(): invalid opcode");
         insert(end(), (unsigned char)opcode);
         return *this;
     }
diff --git a/src/script/script_error.cpp b/src/script/script_error.cpp
index 5d24ed98ba..d8ecfde1d7 100644
--- a/src/script/script_error.cpp
+++ b/src/script/script_error.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/script/script_error.h b/src/script/script_error.h
index ac1f2deae5..6365680b29 100644
--- a/src/script/script_error.h
+++ b/src/script/script_error.h
@@ -1,10 +1,10 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#ifndef BITCOIN_SCRIPT_ERROR_H
-#define BITCOIN_SCRIPT_ERROR_H
+#ifndef BITCOIN_SCRIPT_SCRIPT_ERROR_H
+#define BITCOIN_SCRIPT_SCRIPT_ERROR_H
 
 typedef enum ScriptError_t
 {
@@ -43,6 +43,7 @@ typedef enum ScriptError_t
     SCRIPT_ERR_SIG_HIGH_S,
     SCRIPT_ERR_SIG_NULLDUMMY,
     SCRIPT_ERR_PUBKEYTYPE,
+    SCRIPT_ERR_CLEANSTACK,
 
     /* softfork safeness */
     SCRIPT_ERR_DISCOURAGE_UPGRADABLE_NOPS,
@@ -54,4 +55,4 @@ typedef enum ScriptError_t
 
 const char* ScriptErrorString(const ScriptError error);
 
-#endif // BITCOIN_SCRIPT_ERROR_H
+#endif // BITCOIN_SCRIPT_SCRIPT_ERROR_H
diff --git a/src/script/sigcache.cpp b/src/script/sigcache.cpp
index 5580a5933e..099b4ad0e3 100644
--- a/src/script/sigcache.cpp
+++ b/src/script/sigcache.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -74,14 +74,14 @@ public:
 
 }
 
-bool CachingSignatureChecker::VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& pubkey, const uint256& sighash) const
+bool CachingTransactionSignatureChecker::VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& pubkey, const uint256& sighash) const
 {
     static CSignatureCache signatureCache;
 
     if (signatureCache.Get(sighash, vchSig, pubkey))
         return true;
 
-    if (!SignatureChecker::VerifySignature(vchSig, pubkey, sighash))
+    if (!TransactionSignatureChecker::VerifySignature(vchSig, pubkey, sighash))
         return false;
 
     if (store)
diff --git a/src/script/sigcache.h b/src/script/sigcache.h
index df2a2ea13c..b299038daa 100644
--- a/src/script/sigcache.h
+++ b/src/script/sigcache.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -12,13 +12,13 @@
 
 class CPubKey;
 
-class CachingSignatureChecker : public SignatureChecker
+class CachingTransactionSignatureChecker : public TransactionSignatureChecker
 {
 private:
     bool store;
 
 public:
-    CachingSignatureChecker(const CTransaction& txToIn, unsigned int nInIn, bool storeIn=true) : SignatureChecker(txToIn, nInIn), store(storeIn) {}
+    CachingTransactionSignatureChecker(const CTransaction* txToIn, unsigned int nInIn, bool storeIn=true) : TransactionSignatureChecker(txToIn, nInIn), store(storeIn) {}
 
     bool VerifySignature(const std::vector<unsigned char>& vchSig, const CPubKey& vchPubKey, const uint256& sighash) const;
 };
diff --git a/src/script/sign.cpp b/src/script/sign.cpp
index 03c33ad9b5..14119f7e2c 100644
--- a/src/script/sign.cpp
+++ b/src/script/sign.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -123,7 +123,7 @@ bool SignSignature(const CKeyStore &keystore, const CScript& fromPubKey, CMutabl
     }
 
     // Test solution
-    return VerifyScript(txin.scriptSig, fromPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, SignatureChecker(txTo, nIn));
+    return VerifyScript(txin.scriptSig, fromPubKey, STANDARD_SCRIPT_VERIFY_FLAGS, MutableTransactionSignatureChecker(&txTo, nIn));
 }
 
 bool SignSignature(const CKeyStore &keystore, const CTransaction& txFrom, CMutableTransaction& txTo, unsigned int nIn, int nHashType)
@@ -174,7 +174,7 @@ static CScript CombineMultisig(const CScript& scriptPubKey, const CTransaction&
             if (sigs.count(pubkey))
                 continue; // Already got a sig for this pubkey
 
-            if (SignatureChecker(txTo, nIn).CheckSig(sig, pubkey, scriptPubKey))
+            if (TransactionSignatureChecker(&txTo, nIn).CheckSig(sig, pubkey, scriptPubKey))
             {
                 sigs[pubkey] = sig;
                 break;
diff --git a/src/script/sign.h b/src/script/sign.h
index 45a5e0dea3..e197d5fab3 100644
--- a/src/script/sign.h
+++ b/src/script/sign.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/script/standard.cpp b/src/script/standard.cpp
index ab6e6cde0d..ce50e3aad8 100644
--- a/src/script/standard.cpp
+++ b/src/script/standard.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -18,7 +18,7 @@ typedef vector<unsigned char> valtype;
 
 unsigned nMaxDatacarrierBytes = MAX_OP_RETURN_RELAY;
 
-CScriptID::CScriptID(const CScript& in) : uint160(in.size() ? Hash160(in.begin(), in.end()) : 0) {}
+CScriptID::CScriptID(const CScript& in) : uint160(Hash160(in.begin(), in.end())) {}
 
 const char* GetTxnOutputType(txnouttype t)
 {
diff --git a/src/script/standard.h b/src/script/standard.h
index c4b82b4c45..a8b0acc981 100644
--- a/src/script/standard.h
+++ b/src/script/standard.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -20,12 +20,12 @@ class CScript;
 class CScriptID : public uint160
 {
 public:
-    CScriptID() : uint160(0) {}
+    CScriptID() : uint160() {}
     CScriptID(const CScript& in);
     CScriptID(const uint160& in) : uint160(in) {}
 };
 
-static const unsigned int MAX_OP_RETURN_RELAY = 40;      //! bytes
+static const unsigned int MAX_OP_RETURN_RELAY = 80;      //! bytes
 extern unsigned nMaxDatacarrierBytes;
 
 /**
@@ -45,10 +45,12 @@ static const unsigned int MANDATORY_SCRIPT_VERIFY_FLAGS = SCRIPT_VERIFY_P2SH;
  * blocks and we must accept those blocks.
  */
 static const unsigned int STANDARD_SCRIPT_VERIFY_FLAGS = MANDATORY_SCRIPT_VERIFY_FLAGS |
+                                                         SCRIPT_VERIFY_DERSIG |
                                                          SCRIPT_VERIFY_STRICTENC |
                                                          SCRIPT_VERIFY_MINIMALDATA |
                                                          SCRIPT_VERIFY_NULLDUMMY |
-                                                         SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS;
+                                                         SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS |
+                                                         SCRIPT_VERIFY_CLEANSTACK;
 
 /** For convenience, standard but not mandatory verify flags. */
 static const unsigned int STANDARD_NOT_MANDATORY_VERIFY_FLAGS = STANDARD_SCRIPT_VERIFY_FLAGS & ~MANDATORY_SCRIPT_VERIFY_FLAGS;
diff --git a/src/secp256k1/.gitignore b/src/secp256k1/.gitignore
index f0a54077a5..b9f7d243ec 100644
--- a/src/secp256k1/.gitignore
+++ b/src/secp256k1/.gitignore
@@ -1,6 +1,7 @@
 bench_inv
 bench_sign
 bench_verify
+bench_recover
 tests
 *.exe
 *.so
diff --git a/src/secp256k1/.travis.yml b/src/secp256k1/.travis.yml
index 24a86b561b..40f8dae23f 100644
--- a/src/secp256k1/.travis.yml
+++ b/src/secp256k1/.travis.yml
@@ -1,25 +1,32 @@
-language: cpp
-compiler: gcc
+language: c
+compiler:
+  - clang
+  - gcc
 install:
   - sudo apt-get install -qq libssl-dev
-  - if [ "$BIGNUM" = "gmp" -o "$BIGNUM" = "auto" -o "$FIELD" = "gmp" ]; then sudo apt-get install -qq libgmp-dev; fi
-  - if [ "$FIELD" = "64bit_asm" ]; then sudo apt-get install -qq yasm; fi
+  - if [ "$BIGNUM" = "gmp" -o "$BIGNUM" = "auto" ]; then sudo apt-get install --no-install-recommends --no-upgrade -qq libgmp-dev; fi
+  - if [ -n "$EXTRAPACKAGES" ]; then sudo apt-get update && sudo apt-get install --no-install-recommends --no-upgrade $EXTRAPACKAGES; fi
 env:
   global:
-    - FIELD=auto  BIGNUM=auto  SCALAR=auto  ENDOMORPHISM=no  BUILD=check  EXTRAFLAGS=
+    - FIELD=auto  BIGNUM=auto  SCALAR=auto  ENDOMORPHISM=no  ASM=no  BUILD=check  EXTRAFLAGS= HOST= EXTRAPACKAGES=
   matrix:
     - SCALAR=32bit
     - SCALAR=64bit
-    - FIELD=gmp
-    - FIELD=gmp       ENDOMORPHISM=yes
-    - FIELD=64bit_asm
-    - FIELD=64bit_asm ENDOMORPHISM=yes
     - FIELD=64bit
     - FIELD=64bit     ENDOMORPHISM=yes
+    - FIELD=64bit                       ASM=x86_64
+    - FIELD=64bit     ENDOMORPHISM=yes  ASM=x86_64
     - FIELD=32bit
     - FIELD=32bit     ENDOMORPHISM=yes
+    - BIGNUM=no
+    - BIGNUM=no       ENDOMORPHISM=yes
     - BUILD=distcheck
     - EXTRAFLAGS=CFLAGS=-DDETERMINISTIC
+    - HOST=i686-linux-gnu EXTRAPACKAGES="gcc-multilib"
+    - HOST=i686-linux-gnu EXTRAPACKAGES="gcc-multilib" ENDOMORPHISM=yes
 before_script: ./autogen.sh
-script: ./configure --enable-endomorphism=$ENDOMORPHISM --with-field=$FIELD --with-bignum=$BIGNUM --with-scalar=$SCALAR $EXTRAFLAGS && make -j2 $BUILD
+script:
+ - if [ -n "$HOST" ]; then export USE_HOST="--host=$HOST"; fi
+ - if [ "x$HOST" = "xi686-linux-gnu" ]; then export CC="$CC -m32"; fi
+ - ./configure --enable-endomorphism=$ENDOMORPHISM --with-field=$FIELD --with-bignum=$BIGNUM --with-scalar=$SCALAR $EXTRAFLAGS $USE_HOST && make -j2 $BUILD
 os: linux
diff --git a/src/secp256k1/Makefile.am b/src/secp256k1/Makefile.am
index d527da6b77..985c172eba 100644
--- a/src/secp256k1/Makefile.am
+++ b/src/secp256k1/Makefile.am
@@ -1,12 +1,6 @@
 ACLOCAL_AMFLAGS = -I build-aux/m4
 
 lib_LTLIBRARIES = libsecp256k1.la
-if USE_ASM
-COMMON_LIB = libsecp256k1_common.la
-else
-COMMON_LIB =
-endif
-noinst_LTLIBRARIES = $(COMMON_LIB)
 include_HEADERS = include/secp256k1.h
 noinst_HEADERS =
 noinst_HEADERS += src/scalar.h
@@ -39,50 +33,45 @@ noinst_HEADERS += src/java/org_bitcoin_NativeSecp256k1.h
 noinst_HEADERS += src/util.h
 noinst_HEADERS += src/testrand.h
 noinst_HEADERS += src/testrand_impl.h
-noinst_HEADERS += src/field_gmp.h
-noinst_HEADERS += src/field_gmp_impl.h
+noinst_HEADERS += src/hash.h
+noinst_HEADERS += src/hash_impl.h
 noinst_HEADERS += src/field.h
 noinst_HEADERS += src/field_impl.h
+noinst_HEADERS += src/bench.h
 
 pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = libsecp256k1.pc
 
-if USE_ASM
-libsecp256k1_common_la_SOURCES = src/field_5x52_asm.asm
-endif
-
 libsecp256k1_la_SOURCES = src/secp256k1.c
 libsecp256k1_la_CPPFLAGS = -I$(top_srcdir)/include $(SECP_INCLUDES)
-libsecp256k1_la_LIBADD = $(COMMON_LIB) $(SECP_LIBS)
+libsecp256k1_la_LIBADD = $(SECP_LIBS)
 
 
 noinst_PROGRAMS =
 if USE_BENCHMARK
-noinst_PROGRAMS += bench_verify bench_sign bench_inv
+noinst_PROGRAMS += bench_verify bench_recover bench_sign bench_inv
 bench_verify_SOURCES = src/bench_verify.c
 bench_verify_LDADD = libsecp256k1.la $(SECP_LIBS)
 bench_verify_LDFLAGS = -static
+bench_recover_SOURCES = src/bench_recover.c
+bench_recover_LDADD = libsecp256k1.la $(SECP_LIBS)
+bench_recover_LDFLAGS = -static
 bench_sign_SOURCES = src/bench_sign.c
 bench_sign_LDADD = libsecp256k1.la $(SECP_LIBS)
 bench_sign_LDFLAGS = -static
 bench_inv_SOURCES = src/bench_inv.c
-bench_inv_LDADD = $(COMMON_LIB) $(SECP_LIBS)
+bench_inv_LDADD = $(SECP_LIBS)
 bench_inv_LDFLAGS = -static
+bench_inv_CPPFLAGS = $(SECP_INCLUDES)
 endif
 
 if USE_TESTS
 noinst_PROGRAMS += tests
 tests_SOURCES = src/tests.c
-tests_CPPFLAGS = -DVERIFY $(SECP_TEST_INCLUDES)
-tests_LDADD = $(COMMON_LIB) $(SECP_LIBS) $(SECP_TEST_LIBS)
+tests_CPPFLAGS = -DVERIFY $(SECP_INCLUDES) $(SECP_TEST_INCLUDES)
+tests_LDADD = $(SECP_LIBS) $(SECP_TEST_LIBS)
 tests_LDFLAGS = -static
 TESTS = tests
 endif
 
-EXTRA_DIST = autogen.sh nasm_lt.sh
-
-#x86_64 only
-if USE_ASM
-.asm.lo:
-	$(LIBTOOL) --mode=compile --tag YASM $(srcdir)/nasm_lt.sh $(YASM) -f $(YASM_BINFMT) $(YAFLAGS) -I$(srcdir) -I. $< -o $@
-endif
+EXTRA_DIST = autogen.sh
diff --git a/src/secp256k1/build-aux/m4/bitcoin_secp.m4 b/src/secp256k1/build-aux/m4/bitcoin_secp.m4
index e6f3470ed7..4a398d6c93 100644
--- a/src/secp256k1/build-aux/m4/bitcoin_secp.m4
+++ b/src/secp256k1/build-aux/m4/bitcoin_secp.m4
@@ -1,50 +1,17 @@
 dnl libsecp25k1 helper checks
 AC_DEFUN([SECP_INT128_CHECK],[
 has_int128=$ac_cv_type___int128
-if test x"$has_int128" != x"yes" && test x"$set_field" = x"64bit"; then
-  AC_MSG_ERROR([$set_field field support explicitly requested but is not compatible with this host])
-fi
-if test x"$has_int128" != x"yes" && test x"$set_scalar" = x"64bit"; then
-  AC_MSG_ERROR([$set_scalar scalar support explicitly requested but is not compatible with this host])
-fi
 ])
 
 dnl 
 AC_DEFUN([SECP_64BIT_ASM_CHECK],[
-if test x"$host_cpu" == x"x86_64"; then
-  AC_CHECK_PROG(YASM, yasm, yasm)
-else
-  if test x"$set_field" = x"64bit_asm"; then
-    AC_MSG_ERROR([$set_field field support explicitly requested but is not compatible with this host])
-  fi
-fi
-if test x$YASM = x; then
-  if test x"$set_field" = x"64bit_asm"; then
-    AC_MSG_ERROR([$set_field field support explicitly requested but yasm was not found])
-  fi
-  has_64bit_asm=no
-else
-  case x"$host_os" in
-  xdarwin*)
-    YASM_BINFMT=macho64
-    ;;
-  x*-gnux32)
-    YASM_BINFMT=elfx32
-    ;;
-  *)
-    YASM_BINFMT=elf64
-    ;;
-  esac
-  if $YASM -f help | grep -q $YASM_BINFMT; then
-    has_64bit_asm=yes
-  else
-    if test x"$set_field" = x"64bit_asm"; then
-      AC_MSG_ERROR([$set_field field support explicitly requested but yasm doesn't support $YASM_BINFMT format])
-    fi
-    AC_MSG_WARN([yasm too old for $YASM_BINFMT format])
-    has_64bit_asm=no
-  fi
-fi
+AC_MSG_CHECKING(for x86_64 assembly availability)
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+  #include <stdint.h>]],[[
+  uint64_t a = 11, tmp;
+  __asm__ __volatile__("movq $0x100000000,%1; mulq %%rsi" : "+a"(a) : "S"(tmp) : "cc", "%rdx");
+  ]])],[has_64bit_asm=yes],[has_64bit_asm=no])
+AC_MSG_RESULT([$has_64bit_asm])
 ])
 
 dnl
@@ -52,15 +19,20 @@ AC_DEFUN([SECP_OPENSSL_CHECK],[
 if test x"$use_pkgconfig" = x"yes"; then
     : #NOP
   m4_ifdef([PKG_CHECK_MODULES],[
-    PKG_CHECK_MODULES([CRYPTO], [libcrypto], [has_libcrypto=yes; AC_DEFINE(HAVE_LIBCRYPTO,1,[Define this symbol if libcrypto is installed])],[has_libcrypto=no])
-    : #NOP
+    PKG_CHECK_MODULES([CRYPTO], [libcrypto], [has_libcrypto=yes],[has_libcrypto=no])
+    if test x"$has_libcrypto" = x"yes"; then
+      TEMP_LIBS="$LIBS"
+      LIBS="$LIBS $CRYPTO_LIBS"
+      AC_CHECK_LIB(crypto, main,[AC_DEFINE(HAVE_LIBCRYPTO,1,[Define this symbol if libcrypto is installed])],[has_libcrypto=no])
+      LIBS="$TEMP_LIBS"
+    fi
   ])
 else
   AC_CHECK_HEADER(openssl/crypto.h,[AC_CHECK_LIB(crypto, main,[has_libcrypto=yes; CRYPTO_LIBS=-lcrypto; AC_DEFINE(HAVE_LIBCRYPTO,1,[Define this symbol if libcrypto is installed])]
 )])
   LIBS=
 fi
-if test x"$has_libcrypto" == x"yes" && test x"$has_openssl_ec" = x; then
+if test x"$has_libcrypto" = x"yes" && test x"$has_openssl_ec" = x; then
   AC_MSG_CHECKING(for EC functions in libcrypto)
   AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
     #include <openssl/ec.h>
@@ -78,13 +50,12 @@ fi
 dnl
 AC_DEFUN([SECP_GMP_CHECK],[
 if test x"$has_gmp" != x"yes"; then
-  AC_CHECK_HEADER(gmp.h,[AC_CHECK_LIB(gmp, __gmpz_init,[has_gmp=yes; GMP_LIBS=-lgmp; AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])])])
-fi
-if test x"$set_field" = x"gmp" && test x"$has_gmp" != x"yes"; then
-    AC_MSG_ERROR([$set_field field support explicitly requested but libgmp was not found])
-fi
-if test x"$set_bignum" = x"gmp" && test x"$has_gmp" != x"yes"; then
-    AC_MSG_ERROR([$set_bignum field support explicitly requested but libgmp was not found])
+  CPPFLAGS_TEMP="$CPPFLAGS"
+  CPPFLAGS="$GMP_CPPFLAGS $CPPFLAGS"
+  LIBS_TEMP="$LIBS"
+  LIBS="$GMP_LIBS $LIBS"
+  AC_CHECK_HEADER(gmp.h,[AC_CHECK_LIB(gmp, __gmpz_init,[has_gmp=yes; GMP_LIBS="$GMP_LIBS -lgmp"; AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])])])
+  CPPFLAGS="$CPPFLAGS_TEMP"
+  LIBS="$LIBS_TEMP"
 fi
 ])
-
diff --git a/src/secp256k1/configure.ac b/src/secp256k1/configure.ac
index 2da5709834..f691156ff7 100644
--- a/src/secp256k1/configure.ac
+++ b/src/secp256k1/configure.ac
@@ -6,7 +6,7 @@ AC_CANONICAL_HOST
 AH_TOP([#ifndef LIBSECP256K1_CONFIG_H])
 AH_TOP([#define LIBSECP256K1_CONFIG_H])
 AH_BOTTOM([#endif //LIBSECP256K1_CONFIG_H])
-AM_INIT_AUTOMAKE([foreign])
+AM_INIT_AUTOMAKE([foreign subdir-objects])
 LT_INIT
 
 dnl make the compilation flags quiet unless V=1 is used
@@ -18,8 +18,12 @@ AC_PATH_TOOL(AR, ar)
 AC_PATH_TOOL(RANLIB, ranlib)
 AC_PATH_TOOL(STRIP, strip)
 
+if test "x$CFLAGS" = "x"; then
+  CFLAGS="-O3 -g"
+fi
+
 AC_PROG_CC_C99
-if test x"$ac_cv_prog_cc_c99" == x"no"; then
+if test x"$ac_cv_prog_cc_c99" = x"no"; then
   AC_MSG_ERROR([c99 compiler support required])
 fi
 
@@ -33,10 +37,35 @@ case $host in
 esac
 
 case $host_os in
-  darwin*)
-     CPPFLAGS="$CPPFLAGS -I/opt/local/include"
-     LDFLAGS="$LDFLAGS -L/opt/local/lib"
-     ;;
+  *darwin*)
+     if  test x$cross_compiling != xyes; then
+       AC_PATH_PROG([BREW],brew,)
+       if test x$BREW != x; then
+         dnl These Homebrew packages may be keg-only, meaning that they won't be found
+         dnl in expected paths because they may conflict with system files. Ask
+         dnl Homebrew where each one is located, then adjust paths accordingly.
+
+         openssl_prefix=`$BREW --prefix openssl 2>/dev/null`
+         gmp_prefix=`$BREW --prefix gmp 2>/dev/null`
+         if test x$openssl_prefix != x; then
+           PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
+           export PKG_CONFIG_PATH
+         fi
+         if test x$gmp_prefix != x; then
+           GMP_CPPFLAGS="-I$gmp_prefix/include"
+           GMP_LIBS="-L$gmp_prefix/lib"
+         fi
+       else
+         AC_PATH_PROG([PORT],port,)
+         dnl if homebrew isn't installed and macports is, add the macports default paths
+         dnl as a last resort.
+         if test x$PORT != x; then
+           CPPFLAGS="$CPPFLAGS -isystem /opt/local/include"
+           LDFLAGS="$LDFLAGS -L/opt/local/lib"
+         fi
+       fi
+     fi
+   ;;
 esac
 
 CFLAGS="$CFLAGS -W"
@@ -53,9 +82,9 @@ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[char foo;]])],
 
 
 AC_ARG_ENABLE(benchmark,
-    AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is yes)]),
+    AS_HELP_STRING([--enable-benchmark],[compile benchmark (default is no)]),
     [use_benchmark=$enableval],
-    [use_benchmark=yes])
+    [use_benchmark=no])
 
 AC_ARG_ENABLE(tests,
     AS_HELP_STRING([--enable-tests],[compile tests (default is yes)]),
@@ -67,53 +96,74 @@ AC_ARG_ENABLE(endomorphism,
     [use_endomorphism=$enableval],
     [use_endomorphism=no])
 
-AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=gmp|64bit|64bit_asm|32bit|auto],
+AC_ARG_WITH([field], [AS_HELP_STRING([--with-field=64bit|32bit|auto],
 [Specify Field Implementation. Default is auto])],[req_field=$withval], [req_field=auto])
 
-AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|auto],
+AC_ARG_WITH([bignum], [AS_HELP_STRING([--with-bignum=gmp|no|auto],
 [Specify Bignum Implementation. Default is auto])],[req_bignum=$withval], [req_bignum=auto])
 
 AC_ARG_WITH([scalar], [AS_HELP_STRING([--with-scalar=64bit|32bit|auto],
 [Specify scalar implementation. Default is auto])],[req_scalar=$withval], [req_scalar=auto])
 
+AC_ARG_WITH([asm], [AS_HELP_STRING([--with-asm=x86_64|no|auto]
+[Specify assembly optimizations to use. Default is auto])],[req_asm=$withval], [req_asm=auto])
+
 AC_CHECK_TYPES([__int128])
 
-AC_CHECK_DECL(__builtin_expect,AC_DEFINE(HAVE_BUILTIN_EXPECT,1,[Define this symbol if __builtin_expect is available]),,)
+AC_MSG_CHECKING([for __builtin_expect])
+AC_COMPILE_IFELSE([AC_LANG_SOURCE([[void myfunc() {__builtin_expect(0,0);}]])],
+    [ AC_MSG_RESULT([yes]);AC_DEFINE(HAVE_BUILTIN_EXPECT,1,[Define this symbol if __builtin_expect is available]) ],
+    [ AC_MSG_RESULT([no])
+    ])
 
-if test x"$req_field" = x"auto"; then
+if test x"$req_asm" = x"auto"; then
   SECP_64BIT_ASM_CHECK
   if test x"$has_64bit_asm" = x"yes"; then
-    set_field=64bit_asm
+    set_asm=x86_64
   fi
+  if test x"$set_asm" = x; then
+    set_asm=no
+  fi
+else
+  set_asm=$req_asm
+  case $set_asm in
+  x86_64)
+    SECP_64BIT_ASM_CHECK
+    if test x"$has_64bit_asm" != x"yes"; then
+      AC_MSG_ERROR([x86_64 assembly optimization requested but not available])
+    fi
+    ;;
+  no)
+    ;;
+  *)
+    AC_MSG_ERROR([invalid assembly optimization selection])
+    ;;
+  esac
+fi
 
+if test x"$req_field" = x"auto"; then
+  if test x"set_asm" = x"x86_64"; then
+    set_field=64bit
+  fi
   if test x"$set_field" = x; then
     SECP_INT128_CHECK
     if test x"$has_int128" = x"yes"; then
       set_field=64bit
     fi
   fi
-
-  if test x"$set_field" = x; then
-    SECP_GMP_CHECK
-    if test x"$has_gmp" = x"yes"; then
-      set_field=gmp
-    fi
-  fi
-
   if test x"$set_field" = x; then
     set_field=32bit
   fi
 else
   set_field=$req_field
   case $set_field in
-  64bit_asm)
-    SECP_64BIT_ASM_CHECK
-    ;;
   64bit)
-    SECP_INT128_CHECK
-    ;;
-  gmp)
-    SECP_GMP_CHECK
+    if test x"$set_asm" != x"x86_64"; then
+      SECP_INT128_CHECK
+      if test x"$has_int128" != x"yes"; then
+        AC_MSG_ERROR([64bit field explicitly requested but neither __int128 support or x86_64 assembly available])
+      fi
+    fi
     ;;
   32bit)
     ;;
@@ -124,11 +174,9 @@ else
 fi
 
 if test x"$req_scalar" = x"auto"; then
-  if test x"$set_scalar" = x; then
-    SECP_INT128_CHECK
-    if test x"$has_int128" = x"yes"; then
-      set_scalar=64bit
-    fi
+  SECP_INT128_CHECK
+  if test x"$has_int128" = x"yes"; then
+    set_scalar=64bit
   fi
   if test x"$set_scalar" = x; then
     set_scalar=32bit
@@ -138,6 +186,9 @@ else
   case $set_scalar in
   64bit)
     SECP_INT128_CHECK
+    if test x"$has_int128" != x"yes"; then
+      AC_MSG_ERROR([64bit scalar explicitly requested but __int128 support not available])
+    fi
     ;;
   32bit)
     ;;
@@ -154,16 +205,18 @@ if test x"$req_bignum" = x"auto"; then
   fi
 
   if test x"$set_bignum" = x; then
-    AC_MSG_ERROR([no working bignum implementation found])
+    set_bignum=no
   fi
 else
   set_bignum=$req_bignum
   case $set_bignum in
   gmp)
     SECP_GMP_CHECK
+    if test x"$has_gmp" != x"yes"; then
+      AC_MSG_ERROR([gmp bignum explicitly requested but libgmp not available])
+    fi
     ;;
-  openssl)
-    SECP_OPENSSL_CHECK
+  no)
     ;;
   *)
     AC_MSG_ERROR([invalid bignum implementation selection])
@@ -171,20 +224,23 @@ else
   esac
 fi
 
+# select assembly optimization
+case $set_asm in
+x86_64)
+  AC_DEFINE(USE_ASM_X86_64, 1, [Define this symbol to enable x86_64 assembly optimizations])
+  ;;
+no)
+  ;;
+*)
+  AC_MSG_ERROR([invalid assembly optimizations])
+  ;;
+esac
+
 # select field implementation
 case $set_field in
-64bit_asm)
-  AC_DEFINE(USE_FIELD_5X52_ASM, 1, [Define this symbol to use the assembly version for the 5x52 field implementation])
-  AC_DEFINE(USE_FIELD_5X52, 1, [Define this symbol to use the FIELD_5X52 implementation])
-  ;;
 64bit)
-  AC_DEFINE(USE_FIELD_5X52_INT128, 1, [Define this symbol to use the __int128 version for the 5x52 field implementation])
   AC_DEFINE(USE_FIELD_5X52, 1, [Define this symbol to use the FIELD_5X52 implementation])
   ;;
-gmp)
-  AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])
-  AC_DEFINE(USE_FIELD_GMP, 1, [Define this symbol to use the FIELD_GMP implementation])
-  ;;
 32bit)
   AC_DEFINE(USE_FIELD_10X26, 1, [Define this symbol to use the FIELD_10X26 implementation])
   ;;
@@ -196,9 +252,15 @@ esac
 # select bignum implementation
 case $set_bignum in
 gmp)
-  AC_DEFINE(HAVE_LIBGMP,1,[Define this symbol if libgmp is installed])
-  AC_DEFINE(USE_NUM_GMP, 1, [Define this symbol to use the gmp implementation])
-  AC_DEFINE(USE_FIELD_INV_NUM, 1, [Define this symbol to use the USE_FIELD_INV_NUM implementation])
+  AC_DEFINE(HAVE_LIBGMP, 1, [Define this symbol if libgmp is installed])
+  AC_DEFINE(USE_NUM_GMP, 1, [Define this symbol to use the gmp implementation for num])
+  AC_DEFINE(USE_FIELD_INV_NUM, 1, [Define this symbol to use the num-based field inverse implementation])
+  AC_DEFINE(USE_SCALAR_INV_NUM, 1, [Define this symbol to use the num-based scalar inverse implementation])
+  ;;
+no)
+  AC_DEFINE(USE_NUM_NONE, 1, [Define this symbol to use no num implementation])
+  AC_DEFINE(USE_FIELD_INV_BUILTIN, 1, [Define this symbol to use the native field inverse implementation])
+  AC_DEFINE(USE_SCALAR_INV_BUILTIN, 1, [Define this symbol to use the native scalar inverse implementation])
   ;;
 *)
   AC_MSG_ERROR([invalid bignum implementation])
@@ -220,7 +282,7 @@ esac
 
 if test x"$use_tests" = x"yes"; then
   SECP_OPENSSL_CHECK
-  if test x"$has_openssl_ec" == x"yes"; then
+  if test x"$has_openssl_ec" = x"yes"; then
     AC_DEFINE(ENABLE_OPENSSL_TESTS, 1, [Define this symbol if OpenSSL EC functions are available])
     SECP_TEST_INCLUDES="$SSL_CFLAGS $CRYPTO_CFLAGS"
     SECP_TEST_LIBS="$CRYPTO_LIBS"
@@ -234,17 +296,20 @@ if test x"$use_tests" = x"yes"; then
   fi
 fi
 
-if test x"$set_field" = x"gmp" || test x"$set_bignum" = x"gmp"; then
+if test x"$set_bignum" = x"gmp"; then
   SECP_LIBS="$SECP_LIBS $GMP_LIBS"
+  SECP_INCLUDES="$SECP_INCLUDES $GMP_CPPFLAGS"
 fi
 
 if test x"$use_endomorphism" = x"yes"; then
-  AC_DEFINE(USE_ENDOMORPHISM, 1, [Define this symbol to use endomorphism])
+  AC_DEFINE(USE_ENDOMORPHISM, 1, [Define this symbol to use endomorphism optimization])
 fi
 
+AC_MSG_NOTICE([Using assembly optimizations: $set_asm])
 AC_MSG_NOTICE([Using field implementation: $set_field])
 AC_MSG_NOTICE([Using bignum implementation: $set_bignum])
 AC_MSG_NOTICE([Using scalar implementation: $set_scalar])
+AC_MSG_NOTICE([Using endomorphism optimizations: $use_endomorphism])
 
 AC_CONFIG_HEADERS([src/libsecp256k1-config.h])
 AC_CONFIG_FILES([Makefile libsecp256k1.pc])
@@ -252,8 +317,12 @@ AC_SUBST(SECP_INCLUDES)
 AC_SUBST(SECP_LIBS)
 AC_SUBST(SECP_TEST_LIBS)
 AC_SUBST(SECP_TEST_INCLUDES)
-AC_SUBST(YASM_BINFMT)
-AM_CONDITIONAL([USE_ASM], [test x"$set_field" == x"64bit_asm"])
 AM_CONDITIONAL([USE_TESTS], [test x"$use_tests" != x"no"])
-AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" != x"no"])
+AM_CONDITIONAL([USE_BENCHMARK], [test x"$use_benchmark" = x"yes"])
+
+dnl make sure nothing new is exported so that we don't break the cache
+PKGCONFIG_PATH_TEMP="$PKG_CONFIG_PATH"
+unset PKG_CONFIG_PATH
+PKG_CONFIG_PATH="$PKGCONFIG_PATH_TEMP"
+
 AC_OUTPUT
diff --git a/src/secp256k1/include/secp256k1.h b/src/secp256k1/include/secp256k1.h
index 932bf0279f..cfdae31eaf 100644
--- a/src/secp256k1/include/secp256k1.h
+++ b/src/secp256k1/include/secp256k1.h
@@ -15,18 +15,6 @@ extern "C" {
 # endif
 
 # if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
-#  if SECP256K1_GNUC_PREREQ(3,0)
-#   define SECP256K1_RESTRICT __restrict__
-#  elif (defined(_MSC_VER) && _MSC_VER >= 1400)
-#   define SECP256K1_RESTRICT __restrict
-#  else
-#   define SECP256K1_RESTRICT
-#  endif
-# else
-#  define SECP256K1_RESTRICT restrict
-# endif
-
-# if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
 #  if SECP256K1_GNUC_PREREQ(2,7)
 #   define SECP256K1_INLINE __inline__
 #  elif (defined(_MSC_VER))
@@ -74,8 +62,7 @@ void secp256k1_stop(void);
  *           0: incorrect signature
  *          -1: invalid public key
  *          -2: invalid signature
- * In:       msg:       the message being verified (cannot be NULL)
- *           msglen:    the length of the message (at most 32)
+ * In:       msg32:     the 32-byte message hash being verified (cannot be NULL)
  *           sig:       the signature being verified (cannot be NULL)
  *           siglen:    the length of the signature
  *           pubkey:    the public key to verify with (cannot be NULL)
@@ -83,60 +70,85 @@ void secp256k1_stop(void);
  * Requires starting using SECP256K1_START_VERIFY.
  */
 SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_verify(
-  const unsigned char *msg,
-  int msglen,
+  const unsigned char *msg32,
   const unsigned char *sig,
   int siglen,
   const unsigned char *pubkey,
   int pubkeylen
-) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(5);
+) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(4);
+
+/** A pointer to a function to deterministically generate a nonce.
+ * Returns: 1 if a nonce was succesfully generated. 0 will cause signing to fail.
+ * In:      msg32:     the 32-byte message hash being verified (will not be NULL)
+ *          key32:     pointer to a 32-byte secret key (will not be NULL)
+ *          attempt:   how many iterations we have tried to find a nonce.
+ *                     This will almost always be 0, but different attempt values
+ *                     are required to result in a different nonce.
+ *          data:      Arbitrary data pointer that is passed through.
+ * Out:     nonce32:   pointer to a 32-byte array to be filled by the function.
+ * Except for test cases, this function should compute some cryptographic hash of
+ * the message, the key and the attempt.
+ */
+typedef int (*secp256k1_nonce_function_t)(
+  unsigned char *nonce32,
+  const unsigned char *msg32,
+  const unsigned char *key32,
+  unsigned int attempt,
+  const void *data
+);
+
+/** An implementation of RFC6979 (using HMAC-SHA256) as nonce generation function. */
+extern const secp256k1_nonce_function_t secp256k1_nonce_function_rfc6979;
+
+/** A default safe nonce generation function (currently equal to secp256k1_nonce_function_rfc6979). */
+extern const secp256k1_nonce_function_t secp256k1_nonce_function_default;
+
 
 /** Create an ECDSA signature.
  *  Returns: 1: signature created
- *           0: nonce invalid, try another one
- *  In:      msg:    the message being signed (cannot be NULL)
- *           msglen: the length of the message being signed (at most 32)
+ *           0: the nonce generation function failed
+ *  In:      msg32:  the 32-byte message hash being signed (cannot be NULL)
  *           seckey: pointer to a 32-byte secret key (cannot be NULL, assumed to be valid)
- *           nonce:  pointer to a 32-byte nonce (cannot be NULL, generated with a cryptographic PRNG)
+ *           noncefp:pointer to a nonce generation function. If NULL, secp256k1_nonce_function_default is used
+ *           ndata:  pointer to arbitrary data used by the nonce generation function (can be NULL)
  *  Out:     sig:    pointer to an array where the signature will be placed (cannot be NULL)
  *  In/Out:  siglen: pointer to an int with the length of sig, which will be updated
  *                   to contain the actual signature length (<=72).
  * Requires starting using SECP256K1_START_SIGN.
  */
-SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_sign(
-  const unsigned char *msg,
-  int msglen,
+int secp256k1_ecdsa_sign(
+  const unsigned char *msg32,
   unsigned char *sig,
   int *siglen,
   const unsigned char *seckey,
-  const unsigned char *nonce
-) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5) SECP256K1_ARG_NONNULL(6);
+  secp256k1_nonce_function_t noncefp,
+  const void *ndata
+) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4);
 
 /** Create a compact ECDSA signature (64 byte + recovery id).
  *  Returns: 1: signature created
- *           0: nonce invalid, try another one
- *  In:      msg:    the message being signed (cannot be NULL)
- *           msglen: the length of the message being signed (at most 32)
+ *           0: the nonce generation function failed
+ *  In:      msg32:  the 32-byte message hash being signed (cannot be NULL)
  *           seckey: pointer to a 32-byte secret key (cannot be NULL, assumed to be valid)
- *           nonce:  pointer to a 32-byte nonce (cannot be NULL, generated with a cryptographic PRNG)
+ *           noncefp:pointer to a nonce generation function. If NULL, secp256k1_nonce_function_default is used
+ *           ndata:  pointer to arbitrary data used by the nonce generation function (can be NULL)
  *  Out:     sig:    pointer to a 64-byte array where the signature will be placed (cannot be NULL)
  *           recid:  pointer to an int, which will be updated to contain the recovery id (can be NULL)
  * Requires starting using SECP256K1_START_SIGN.
  */
-SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_sign_compact(
-  const unsigned char *msg,
-  int msglen,
+int secp256k1_ecdsa_sign_compact(
+  const unsigned char *msg32,
   unsigned char *sig64,
   const unsigned char *seckey,
-  const unsigned char *nonce,
+  secp256k1_nonce_function_t noncefp,
+  const void *ndata,
   int *recid
-) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5);
+) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3);
 
 /** Recover an ECDSA public key from a compact signature.
  *  Returns: 1: public key successfully recovered (which guarantees a correct signature).
  *           0: otherwise.
- *  In:      msg:        the message assumed to be signed (cannot be NULL)
- *           msglen:     the length of the message (at most 32)
+ *  In:      msg32:      the 32-byte message hash assumed to be signed (cannot be NULL)
  *           sig64:      signature as 64 byte array (cannot be NULL)
  *           compressed: whether to recover a compressed or uncompressed pubkey
  *           recid:      the recovery id (0-3, as returned by ecdsa_sign_compact)
@@ -145,14 +157,13 @@ SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_sign_compact(
  * Requires starting using SECP256K1_START_VERIFY.
  */
 SECP256K1_WARN_UNUSED_RESULT int secp256k1_ecdsa_recover_compact(
-  const unsigned char *msg,
-  int msglen,
+  const unsigned char *msg32,
   const unsigned char *sig64,
   unsigned char *pubkey,
   int *pubkeylen,
   int compressed,
   int recid
-) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4) SECP256K1_ARG_NONNULL(5);
+) SECP256K1_ARG_NONNULL(1) SECP256K1_ARG_NONNULL(2) SECP256K1_ARG_NONNULL(3) SECP256K1_ARG_NONNULL(4);
 
 /** Verify an ECDSA secret key.
  *  Returns: 1: secret key is valid
diff --git a/src/secp256k1/nasm_lt.sh b/src/secp256k1/nasm_lt.sh
deleted file mode 100755
index 6cd73294c0..0000000000
--- a/src/secp256k1/nasm_lt.sh
+++ /dev/null
@@ -1,57 +0,0 @@
-#! /bin/sh
-command=""
-infile=""
-o_opt=no
-pic=no
-while [ $# -gt 0 ]; do
-    case "$1" in
-        -DPIC|-fPIC|-fpic|-Kpic|-KPIC)
-            if [ "$pic" != "yes" ] ; then
-                command="$command -DPIC"
-                pic=yes
-            fi
-            ;;
-        -f|-fbin|-faout|-faoutb|-fcoff|-felf|-felf64|-fas86| \
-        -fobj|-fwin32|-fwin64|-frdf|-fieee|-fmacho|-fmacho64)
-            # it's a file format specifier for nasm.
-            command="$command $1"
-            ;;
-        -f*)
-            # maybe a code-generation flag for gcc.
-            ;;
-        -[Ii]*)
-            incdir=`echo "$1" | sed 's/^-[Ii]//'`
-            if [ "x$incdir" = x -a "x$2" != x ] ; then
-                case "$2" in
-                    -*) ;;
-                    *) incdir="$2"; shift;;
-                esac
-            fi
-            if [ "x$incdir" != x ] ; then
-                # In the case of NASM, the trailing slash is necessary.
-                incdir=`echo "$incdir" | sed 's%/*$%/%'`
-                command="$command -I$incdir"
-            fi
-            ;;
-        -o*)
-            o_opt=yes
-            command="$command $1"
-            ;;
-        *.asm)
-            infile=$1
-            command="$command $1"
-            ;;
-        *)
-            command="$command $1"
-            ;;
-    esac
-    shift
-done
-if [ "$o_opt" != yes ] ; then
-    # By default, NASM creates an output file
-    # in the same directory as the input file.
-    outfile="-o `echo $infile | sed -e 's%^.*/%%' -e 's%\.[^.]*$%%'`.o"
-    command="$command $outfile"
-fi
-echo $command
-exec $command
diff --git a/src/secp256k1/src/bench.h b/src/secp256k1/src/bench.h
new file mode 100644
index 0000000000..668ec39f71
--- /dev/null
+++ b/src/secp256k1/src/bench.h
@@ -0,0 +1,37 @@
+/**********************************************************************
+ * Copyright (c) 2014 Pieter Wuille                                   *
+ * Distributed under the MIT software license, see the accompanying   *
+ * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
+ **********************************************************************/
+
+#ifndef _SECP256K1_BENCH_H_
+#define _SECP256K1_BENCH_H_
+
+#include <stdio.h>
+#include <math.h>
+#include "sys/time.h"
+
+static double gettimedouble(void) {
+    struct timeval tv;
+    gettimeofday(&tv, NULL);
+    return tv.tv_usec * 0.000001 + tv.tv_sec;
+}
+
+void run_benchmark(void (*benchmark)(void*), void (*setup)(void*), void (*teardown)(void*), void* data, int count, int iter) {
+    double min = HUGE_VAL;
+    double sum = 0.0;
+    double max = 0.0;
+    for (int i = 0; i < count; i++) {
+        if (setup) setup(data);
+        double begin = gettimedouble();
+        benchmark(data);
+        double total = gettimedouble() - begin;
+        if (teardown) teardown(data);
+        if (total < min) min = total;
+        if (total > max) max = total;
+        sum += total;
+    }
+    printf("min %.3fus / avg %.3fus / max %.3fus\n", min * 1000000.0 / iter, (sum / count) * 1000000.0 / iter, max * 1000000.0 / iter);
+}
+
+#endif
diff --git a/src/secp256k1/src/bench_inv.c b/src/secp256k1/src/bench_inv.c
index d6f664333f..3bdedea30e 100644
--- a/src/secp256k1/src/bench_inv.c
+++ b/src/secp256k1/src/bench_inv.c
@@ -12,30 +12,41 @@
 #include "field_impl.h"
 #include "group_impl.h"
 #include "scalar_impl.h"
+#include "bench.h"
+
+typedef struct {
+    secp256k1_scalar_t base, x;
+} bench_inv_t;
+
+void bench_inv_setup(void* arg) {
+    bench_inv_t *data = (bench_inv_t*)arg;
 
-int main(void) {
     static const unsigned char init[32] = {
         0x02, 0x03, 0x05, 0x07, 0x0b, 0x0d, 0x11, 0x13,
         0x17, 0x1d, 0x1f, 0x25, 0x29, 0x2b, 0x2f, 0x35,
         0x3b, 0x3d, 0x43, 0x47, 0x49, 0x4f, 0x53, 0x59,
         0x61, 0x65, 0x67, 0x6b, 0x6d, 0x71, 0x7f, 0x83
     };
-    static const unsigned char fini[32] = {
-        0xba, 0x28, 0x58, 0xd8, 0xaa, 0x11, 0xd6, 0xf2,
-        0xfa, 0xce, 0x50, 0xb1, 0x67, 0x19, 0xb1, 0xa6,
-        0xe0, 0xaa, 0x84, 0x53, 0xf6, 0x80, 0xfc, 0x23,
-        0x88, 0x3c, 0xd6, 0x74, 0x9f, 0x27, 0x09, 0x03
-    };
-    secp256k1_ge_start();
-    secp256k1_scalar_t base, x;
-    secp256k1_scalar_set_b32(&base, init, NULL);
-    secp256k1_scalar_set_b32(&x, init, NULL);
-    for (int i=0; i<1000000; i++) {
-        secp256k1_scalar_inverse(&x, &x);
-        secp256k1_scalar_add(&x, &x, &base);
+
+    secp256k1_scalar_set_b32(&data->base, init, NULL);
+    secp256k1_scalar_set_b32(&data->x, init, NULL);
+}
+
+void bench_inv(void* arg) {
+    bench_inv_t *data = (bench_inv_t*)arg;
+
+    for (int i=0; i<20000; i++) {
+        secp256k1_scalar_inverse(&data->x, &data->x);
+        secp256k1_scalar_add(&data->x, &data->x, &data->base);
     }
-    unsigned char res[32];
-    secp256k1_scalar_get_b32(res, &x);
-    CHECK(memcmp(res, fini, 32) == 0);
+}
+
+int main(void) {
+    secp256k1_ge_start();
+
+    bench_inv_t data;
+    run_benchmark(bench_inv, bench_inv_setup, NULL, &data, 10, 20000);
+
+    secp256k1_ge_stop();
     return 0;
 }
diff --git a/src/secp256k1/src/bench_recover.c b/src/secp256k1/src/bench_recover.c
new file mode 100644
index 0000000000..b1e0f33efa
--- /dev/null
+++ b/src/secp256k1/src/bench_recover.c
@@ -0,0 +1,46 @@
+/**********************************************************************
+ * Copyright (c) 2014 Pieter Wuille                                   *
+ * Distributed under the MIT software license, see the accompanying   *
+ * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
+ **********************************************************************/
+
+#include "include/secp256k1.h"
+#include "util.h"
+#include "bench.h"
+
+typedef struct {
+    unsigned char msg[32];
+    unsigned char sig[64];
+} bench_recover_t;
+
+void bench_recover(void* arg) {
+    bench_recover_t *data = (bench_recover_t*)arg;
+
+    unsigned char pubkey[33];
+    for (int i=0; i<20000; i++) {
+        int pubkeylen = 33;
+        CHECK(secp256k1_ecdsa_recover_compact(data->msg, data->sig, pubkey, &pubkeylen, 1, i % 2));
+        for (int j = 0; j < 32; j++) {
+            data->sig[j + 32] = data->msg[j];    /* Move former message to S. */
+            data->msg[j] = data->sig[j];         /* Move former R to message. */
+            data->sig[j] = pubkey[j + 1];        /* Move recovered pubkey X coordinate to R (which must be a valid X coordinate). */
+        }
+    }
+}
+
+void bench_recover_setup(void* arg) {
+    bench_recover_t *data = (bench_recover_t*)arg;
+
+    for (int i = 0; i < 32; i++) data->msg[i] = 1 + i;
+    for (int i = 0; i < 64; i++) data->sig[i] = 65 + i;
+}
+
+int main(void) {
+    secp256k1_start(SECP256K1_START_VERIFY);
+
+    bench_recover_t data;
+    run_benchmark(bench_recover, bench_recover_setup, NULL, &data, 10, 20000);
+
+    secp256k1_stop();
+    return 0;
+}
diff --git a/src/secp256k1/src/bench_sign.c b/src/secp256k1/src/bench_sign.c
index f01f11d689..2276f00b9a 100644
--- a/src/secp256k1/src/bench_sign.c
+++ b/src/secp256k1/src/bench_sign.c
@@ -3,46 +3,42 @@
  * Distributed under the MIT software license, see the accompanying   *
  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
  **********************************************************************/
-#include <stdio.h>
-#include <string.h>
 
 #include "include/secp256k1.h"
 #include "util.h"
+#include "bench.h"
 
-int main(void) {
-    secp256k1_start(SECP256K1_START_SIGN);
-
+typedef struct {
     unsigned char msg[32];
-    unsigned char nonce[32];
     unsigned char key[32];
+} bench_sign_t;
 
-    for (int i = 0; i < 32; i++) msg[i] = i + 1;
-    for (int i = 0; i < 32; i++) nonce[i] = i + 33;
-    for (int i = 0; i < 32; i++) key[i] = i + 65;
+static void bench_sign_setup(void* arg) {
+    bench_sign_t *data = (bench_sign_t*)arg;
 
-    unsigned char sig[64];
+    for (int i = 0; i < 32; i++) data->msg[i] = i + 1;
+    for (int i = 0; i < 32; i++) data->key[i] = i + 65;
+}
+
+static void bench_sign(void* arg) {
+    bench_sign_t *data = (bench_sign_t*)arg;
 
-    for (int i=0; i<1000000; i++) {
+    unsigned char sig[64];
+    for (int i=0; i<20000; i++) {
         int recid = 0;
-        CHECK(secp256k1_ecdsa_sign_compact(msg, 32, sig, key, nonce, &recid));
+        CHECK(secp256k1_ecdsa_sign_compact(data->msg, sig, data->key, NULL, NULL, &recid));
         for (int j = 0; j < 32; j++) {
-            nonce[j] = key[j];     /* Move former key to nonce  */
-            msg[j] = sig[j];       /* Move former R to message. */
-            key[j] = sig[j + 32];  /* Move former S to key.     */
+            data->msg[j] = sig[j];             /* Move former R to message. */
+            data->key[j] = sig[j + 32];        /* Move former S to key.     */
         }
     }
+}
+
+int main(void) {
+    secp256k1_start(SECP256K1_START_SIGN);
 
-    static const unsigned char fini[64] = {
-        0x92, 0x03, 0xef, 0xf1, 0x58, 0x0b, 0x49, 0x8d,
-        0x22, 0x3d, 0x49, 0x0e, 0xbf, 0x26, 0x50, 0x0e,
-        0x2d, 0x62, 0x90, 0xd7, 0x82, 0xbd, 0x3d, 0x5c,
-        0xa9, 0x10, 0xa5, 0x49, 0xb1, 0xd8, 0x8c, 0xc0,
-        0x5b, 0x5e, 0x9e, 0x68, 0x51, 0x3d, 0xe8, 0xec,
-        0x82, 0x30, 0x82, 0x88, 0x8c, 0xfd, 0xe7, 0x71,
-        0x15, 0x92, 0xfc, 0x14, 0x59, 0x78, 0x31, 0xb3,
-        0xf6, 0x07, 0x91, 0x18, 0x00, 0x8d, 0x4c, 0xb2
-    };
-    CHECK(memcmp(sig, fini, 64) == 0);
+    bench_sign_t data;
+    run_benchmark(bench_sign, bench_sign_setup, NULL, &data, 10, 20000);
 
     secp256k1_stop();
     return 0;
diff --git a/src/secp256k1/src/bench_verify.c b/src/secp256k1/src/bench_verify.c
index 690595516d..a58ca84347 100644
--- a/src/secp256k1/src/bench_verify.c
+++ b/src/secp256k1/src/bench_verify.c
@@ -9,35 +9,44 @@
 
 #include "include/secp256k1.h"
 #include "util.h"
+#include "bench.h"
 
-int main(void) {
-    secp256k1_start(SECP256K1_START_VERIFY);
-
+typedef struct {
     unsigned char msg[32];
-    unsigned char sig[64];
-
-    for (int i = 0; i < 32; i++) msg[i] = 1 + i;
-    for (int i = 0; i < 64; i++) sig[i] = 65 + i;
-
+    unsigned char key[32];
+    unsigned char sig[72];
+    int siglen;
     unsigned char pubkey[33];
-    for (int i=0; i<1000000; i++) {
-        int pubkeylen = 33;
-        CHECK(secp256k1_ecdsa_recover_compact(msg, 32, sig, pubkey, &pubkeylen, 1, i % 2));
-        for (int j = 0; j < 32; j++) {
-            sig[j + 32] = msg[j];    /* Move former message to S. */
-            msg[j] = sig[j];         /* Move former R to message. */
-            sig[j] = pubkey[j + 1];  /* Move recovered pubkey X coordinate to R (which must be a valid X coordinate). */
-        }
+    int pubkeylen;
+} benchmark_verify_t;
+
+static void benchmark_verify(void* arg) {
+    benchmark_verify_t* data = (benchmark_verify_t*)arg;
+
+    for (int i=0; i<20000; i++) {
+        data->sig[data->siglen - 1] ^= (i & 0xFF);
+        data->sig[data->siglen - 2] ^= ((i >> 8) & 0xFF);
+        data->sig[data->siglen - 3] ^= ((i >> 16) & 0xFF);
+        CHECK(secp256k1_ecdsa_verify(data->msg, data->sig, data->siglen, data->pubkey, data->pubkeylen) == (i == 0));
+        data->sig[data->siglen - 1] ^= (i & 0xFF);
+        data->sig[data->siglen - 2] ^= ((i >> 8) & 0xFF);
+        data->sig[data->siglen - 3] ^= ((i >> 16) & 0xFF);
     }
+}
+
+int main(void) {
+    secp256k1_start(SECP256K1_START_VERIFY | SECP256K1_START_SIGN);
+
+    benchmark_verify_t data;
+
+    for (int i = 0; i < 32; i++) data.msg[i] = 1 + i;
+    for (int i = 0; i < 32; i++) data.key[i] = 33 + i;
+    data.siglen = 72;
+    secp256k1_ecdsa_sign(data.msg, data.sig, &data.siglen, data.key, NULL, NULL);
+    data.pubkeylen = 33;
+    CHECK(secp256k1_ec_pubkey_create(data.pubkey, &data.pubkeylen, data.key, 1));
 
-    static const unsigned char fini[33] = {
-        0x02,
-        0x52, 0x63, 0xae, 0x9a, 0x9d, 0x47, 0x1f, 0x1a,
-        0xb2, 0x36, 0x65, 0x89, 0x11, 0xe7, 0xcc, 0x86,
-        0xa3, 0xab, 0x97, 0xb6, 0xf1, 0xaf, 0xfd, 0x8f,
-        0x9b, 0x38, 0xb6, 0x18, 0x55, 0xe5, 0xc2, 0x43
-    };
-    CHECK(memcmp(fini, pubkey, 33) == 0);
+    run_benchmark(benchmark_verify, NULL, NULL, &data, 10, 20000);
 
     secp256k1_stop();
     return 0;
diff --git a/src/secp256k1/src/ecdsa.h b/src/secp256k1/src/ecdsa.h
index 3b1e0484ea..5fc5230c36 100644
--- a/src/secp256k1/src/ecdsa.h
+++ b/src/secp256k1/src/ecdsa.h
@@ -7,17 +7,21 @@
 #ifndef _SECP256K1_ECDSA_
 #define _SECP256K1_ECDSA_
 
-#include "num.h"
+#include "scalar.h"
+#include "group.h"
+
+static void secp256k1_ecsda_start(void);
+static void secp256k1_ecdsa_stop(void);
 
 typedef struct {
-    secp256k1_num_t r, s;
+    secp256k1_scalar_t r, s;
 } secp256k1_ecdsa_sig_t;
 
 static int secp256k1_ecdsa_sig_parse(secp256k1_ecdsa_sig_t *r, const unsigned char *sig, int size);
 static int secp256k1_ecdsa_sig_serialize(unsigned char *sig, int *size, const secp256k1_ecdsa_sig_t *a);
-static int secp256k1_ecdsa_sig_verify(const secp256k1_ecdsa_sig_t *sig, const secp256k1_ge_t *pubkey, const secp256k1_num_t *message);
+static int secp256k1_ecdsa_sig_verify(const secp256k1_ecdsa_sig_t *sig, const secp256k1_ge_t *pubkey, const secp256k1_scalar_t *message);
 static int secp256k1_ecdsa_sig_sign(secp256k1_ecdsa_sig_t *sig, const secp256k1_scalar_t *seckey, const secp256k1_scalar_t *message, const secp256k1_scalar_t *nonce, int *recid);
-static int secp256k1_ecdsa_sig_recover(const secp256k1_ecdsa_sig_t *sig, secp256k1_ge_t *pubkey, const secp256k1_num_t *message, int recid);
-static void secp256k1_ecdsa_sig_set_rs(secp256k1_ecdsa_sig_t *sig, const secp256k1_num_t *r, const secp256k1_num_t *s);
+static int secp256k1_ecdsa_sig_recover(const secp256k1_ecdsa_sig_t *sig, secp256k1_ge_t *pubkey, const secp256k1_scalar_t *message, int recid);
+static void secp256k1_ecdsa_sig_set_rs(secp256k1_ecdsa_sig_t *sig, const secp256k1_scalar_t *r, const secp256k1_scalar_t *s);
 
 #endif
diff --git a/src/secp256k1/src/ecdsa_impl.h b/src/secp256k1/src/ecdsa_impl.h
index 4c05ec39f8..674650c1e9 100644
--- a/src/secp256k1/src/ecdsa_impl.h
+++ b/src/secp256k1/src/ecdsa_impl.h
@@ -8,13 +8,51 @@
 #ifndef _SECP256K1_ECDSA_IMPL_H_
 #define _SECP256K1_ECDSA_IMPL_H_
 
-#include "num.h"
+#include "scalar.h"
 #include "field.h"
 #include "group.h"
 #include "ecmult.h"
 #include "ecmult_gen.h"
 #include "ecdsa.h"
 
+typedef struct {
+    secp256k1_fe_t order_as_fe;
+    secp256k1_fe_t p_minus_order;
+} secp256k1_ecdsa_consts_t;
+
+static const secp256k1_ecdsa_consts_t *secp256k1_ecdsa_consts = NULL;
+
+static void secp256k1_ecdsa_start(void) {
+    if (secp256k1_ecdsa_consts != NULL)
+        return;
+
+    /* Allocate. */
+    secp256k1_ecdsa_consts_t *ret = (secp256k1_ecdsa_consts_t*)checked_malloc(sizeof(secp256k1_ecdsa_consts_t));
+
+    static const unsigned char order[] = {
+        0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+        0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,
+        0xBA,0xAE,0xDC,0xE6,0xAF,0x48,0xA0,0x3B,
+        0xBF,0xD2,0x5E,0x8C,0xD0,0x36,0x41,0x41
+    };
+
+    secp256k1_fe_set_b32(&ret->order_as_fe, order);
+    secp256k1_fe_negate(&ret->p_minus_order, &ret->order_as_fe, 1);
+    secp256k1_fe_normalize_var(&ret->p_minus_order);
+
+    /* Set the global pointer. */
+    secp256k1_ecdsa_consts = ret;
+}
+
+static void secp256k1_ecdsa_stop(void) {
+    if (secp256k1_ecdsa_consts == NULL)
+        return;
+
+    secp256k1_ecdsa_consts_t *c = (secp256k1_ecdsa_consts_t*)secp256k1_ecdsa_consts;
+    secp256k1_ecdsa_consts = NULL;
+    free(c);
+}
+
 static int secp256k1_ecdsa_sig_parse(secp256k1_ecdsa_sig_t *r, const unsigned char *sig, int size) {
     if (sig[0] != 0x30) return 0;
     int lenr = sig[3];
@@ -26,18 +64,37 @@ static int secp256k1_ecdsa_sig_parse(secp256k1_ecdsa_sig_t *r, const unsigned ch
     if (lenr == 0) return 0;
     if (sig[lenr+4] != 0x02) return 0;
     if (lens == 0) return 0;
-    secp256k1_num_set_bin(&r->r, sig+4, lenr);
-    secp256k1_num_set_bin(&r->s, sig+6+lenr, lens);
+    const unsigned char *sp = sig + 6 + lenr;
+    while (lens > 0 && sp[0] == 0) {
+        lens--;
+        sp++;
+    }
+    if (lens > 32) return 0;
+    const unsigned char *rp = sig + 4;
+    while (lenr > 0 && rp[0] == 0) {
+        lenr--;
+        rp++;
+    }
+    if (lenr > 32) return 0;
+    unsigned char ra[32] = {0}, sa[32] = {0};
+    memcpy(ra + 32 - lenr, rp, lenr);
+    memcpy(sa + 32 - lens, sp, lens);
+    int overflow = 0;
+    secp256k1_scalar_set_b32(&r->r, ra, &overflow);
+    if (overflow) return 0;
+    secp256k1_scalar_set_b32(&r->s, sa, &overflow);
+    if (overflow) return 0;
     return 1;
 }
 
 static int secp256k1_ecdsa_sig_serialize(unsigned char *sig, int *size, const secp256k1_ecdsa_sig_t *a) {
-    int lenR = (secp256k1_num_bits(&a->r) + 7)/8;
-    if (lenR == 0 || secp256k1_num_get_bit(&a->r, lenR*8-1))
-        lenR++;
-    int lenS = (secp256k1_num_bits(&a->s) + 7)/8;
-    if (lenS == 0 || secp256k1_num_get_bit(&a->s, lenS*8-1))
-        lenS++;
+    unsigned char r[33] = {0}, s[33] = {0};
+    secp256k1_scalar_get_b32(&r[1], &a->r);
+    secp256k1_scalar_get_b32(&s[1], &a->s);
+    unsigned char *rp = r, *sp = s;
+    int lenR = 33, lenS = 33;
+    while (lenR > 1 && rp[0] == 0 && rp[1] < 0x80) { lenR--; rp++; }
+    while (lenS > 1 && sp[0] == 0 && sp[1] < 0x80) { lenS--; sp++; }
     if (*size < 6+lenS+lenR)
         return 0;
     *size = 6 + lenS + lenR;
@@ -45,101 +102,91 @@ static int secp256k1_ecdsa_sig_serialize(unsigned char *sig, int *size, const se
     sig[1] = 4 + lenS + lenR;
     sig[2] = 0x02;
     sig[3] = lenR;
-    secp256k1_num_get_bin(sig+4, lenR, &a->r);
+    memcpy(sig+4, rp, lenR);
     sig[4+lenR] = 0x02;
     sig[5+lenR] = lenS;
-    secp256k1_num_get_bin(sig+lenR+6, lenS, &a->s);
+    memcpy(sig+lenR+6, sp, lenS);
     return 1;
 }
 
-static int secp256k1_ecdsa_sig_recompute(secp256k1_num_t *r2, const secp256k1_ecdsa_sig_t *sig, const secp256k1_ge_t *pubkey, const secp256k1_num_t *message) {
-    const secp256k1_ge_consts_t *c = secp256k1_ge_consts;
-
-    if (secp256k1_num_is_neg(&sig->r) || secp256k1_num_is_neg(&sig->s))
-        return 0;
-    if (secp256k1_num_is_zero(&sig->r) || secp256k1_num_is_zero(&sig->s))
-        return 0;
-    if (secp256k1_num_cmp(&sig->r, &c->order) >= 0 || secp256k1_num_cmp(&sig->s, &c->order) >= 0)
+static int secp256k1_ecdsa_sig_verify(const secp256k1_ecdsa_sig_t *sig, const secp256k1_ge_t *pubkey, const secp256k1_scalar_t *message) {
+    if (secp256k1_scalar_is_zero(&sig->r) || secp256k1_scalar_is_zero(&sig->s))
         return 0;
 
-    int ret = 0;
-    secp256k1_num_t sn, u1, u2;
-    secp256k1_num_init(&sn);
-    secp256k1_num_init(&u1);
-    secp256k1_num_init(&u2);
-    secp256k1_num_mod_inverse(&sn, &sig->s, &c->order);
-    secp256k1_num_mod_mul(&u1, &sn, message, &c->order);
-    secp256k1_num_mod_mul(&u2, &sn, &sig->r, &c->order);
+    secp256k1_scalar_t sn, u1, u2;
+    secp256k1_scalar_inverse_var(&sn, &sig->s);
+    secp256k1_scalar_mul(&u1, &sn, message);
+    secp256k1_scalar_mul(&u2, &sn, &sig->r);
     secp256k1_gej_t pubkeyj; secp256k1_gej_set_ge(&pubkeyj, pubkey);
     secp256k1_gej_t pr; secp256k1_ecmult(&pr, &pubkeyj, &u2, &u1);
-    if (!secp256k1_gej_is_infinity(&pr)) {
-        secp256k1_fe_t xr; secp256k1_gej_get_x_var(&xr, &pr);
-        secp256k1_fe_normalize(&xr);
-        unsigned char xrb[32]; secp256k1_fe_get_b32(xrb, &xr);
-        secp256k1_num_set_bin(r2, xrb, 32);
-        secp256k1_num_mod(r2, &c->order);
-        ret = 1;
+    if (secp256k1_gej_is_infinity(&pr)) {
+        return 0;
     }
-    secp256k1_num_free(&sn);
-    secp256k1_num_free(&u1);
-    secp256k1_num_free(&u2);
-    return ret;
-}
-
-static int secp256k1_ecdsa_sig_recover(const secp256k1_ecdsa_sig_t *sig, secp256k1_ge_t *pubkey, const secp256k1_num_t *message, int recid) {
-    const secp256k1_ge_consts_t *c = secp256k1_ge_consts;
+    unsigned char c[32];
+    secp256k1_scalar_get_b32(c, &sig->r);
+    secp256k1_fe_t xr;
+    secp256k1_fe_set_b32(&xr, c);
 
-    if (secp256k1_num_is_neg(&sig->r) || secp256k1_num_is_neg(&sig->s))
-        return 0;
-    if (secp256k1_num_is_zero(&sig->r) || secp256k1_num_is_zero(&sig->s))
+    // We now have the recomputed R point in pr, and its claimed x coordinate (modulo n)
+    // in xr. Naively, we would extract the x coordinate from pr (requiring a inversion modulo p),
+    // compute the remainder modulo n, and compare it to xr. However:
+    //
+    //       xr == X(pr) mod n
+    //   <=> exists h. (xr + h * n < p && xr + h * n == X(pr))
+    //   [Since 2 * n > p, h can only be 0 or 1]
+    //   <=> (xr == X(pr)) || (xr + n < p && xr + n == X(pr))
+    //   [In Jacobian coordinates, X(pr) is pr.x / pr.z^2 mod p]
+    //   <=> (xr == pr.x / pr.z^2 mod p) || (xr + n < p && xr + n == pr.x / pr.z^2 mod p)
+    //   [Multiplying both sides of the equations by pr.z^2 mod p]
+    //   <=> (xr * pr.z^2 mod p == pr.x) || (xr + n < p && (xr + n) * pr.z^2 mod p == pr.x)
+    //
+    // Thus, we can avoid the inversion, but we have to check both cases separately.
+    // secp256k1_gej_eq_x implements the (xr * pr.z^2 mod p == pr.x) test.
+    if (secp256k1_gej_eq_x_var(&xr, &pr)) {
+        // xr.x == xr * xr.z^2 mod p, so the signature is valid.
+        return 1;
+    }
+    if (secp256k1_fe_cmp_var(&xr, &secp256k1_ecdsa_consts->p_minus_order) >= 0) {
+        // xr + p >= n, so we can skip testing the second case.
         return 0;
-    if (secp256k1_num_cmp(&sig->r, &c->order) >= 0 || secp256k1_num_cmp(&sig->s, &c->order) >= 0)
+    }
+    secp256k1_fe_add(&xr, &secp256k1_ecdsa_consts->order_as_fe);
+    if (secp256k1_gej_eq_x_var(&xr, &pr)) {
+        // (xr + n) * pr.z^2 mod p == pr.x, so the signature is valid.
+        return 1;
+    }
+    return 0;
+}
+
+static int secp256k1_ecdsa_sig_recover(const secp256k1_ecdsa_sig_t *sig, secp256k1_ge_t *pubkey, const secp256k1_scalar_t *message, int recid) {
+    if (secp256k1_scalar_is_zero(&sig->r) || secp256k1_scalar_is_zero(&sig->s))
         return 0;
 
-    secp256k1_num_t rx;
-    secp256k1_num_init(&rx);
-    secp256k1_num_copy(&rx, &sig->r);
+    unsigned char brx[32];
+    secp256k1_scalar_get_b32(brx, &sig->r);
+    secp256k1_fe_t fx;
+    VERIFY_CHECK(secp256k1_fe_set_b32(&fx, brx)); /* brx comes from a scalar, so is less than the order; certainly less than p */
     if (recid & 2) {
-        secp256k1_num_add(&rx, &rx, &c->order);
-        if (secp256k1_num_cmp(&rx, &secp256k1_fe_consts->p) >= 0)
+        if (secp256k1_fe_cmp_var(&fx, &secp256k1_ecdsa_consts->p_minus_order) >= 0)
             return 0;
+        secp256k1_fe_add(&fx, &secp256k1_ecdsa_consts->order_as_fe);
     }
-    unsigned char brx[32];
-    secp256k1_num_get_bin(brx, 32, &rx);
-    secp256k1_num_free(&rx);
-    secp256k1_fe_t fx;
-    secp256k1_fe_set_b32(&fx, brx);
     secp256k1_ge_t x;
-    if (!secp256k1_ge_set_xo(&x, &fx, recid & 1))
+    if (!secp256k1_ge_set_xo_var(&x, &fx, recid & 1))
         return 0;
     secp256k1_gej_t xj;
     secp256k1_gej_set_ge(&xj, &x);
-    secp256k1_num_t rn, u1, u2;
-    secp256k1_num_init(&rn);
-    secp256k1_num_init(&u1);
-    secp256k1_num_init(&u2);
-    secp256k1_num_mod_inverse(&rn, &sig->r, &c->order);
-    secp256k1_num_mod_mul(&u1, &rn, message, &c->order);
-    secp256k1_num_sub(&u1, &c->order, &u1);
-    secp256k1_num_mod_mul(&u2, &rn, &sig->s, &c->order);
+    secp256k1_scalar_t rn, u1, u2;
+    secp256k1_scalar_inverse_var(&rn, &sig->r);
+    secp256k1_scalar_mul(&u1, &rn, message);
+    secp256k1_scalar_negate(&u1, &u1);
+    secp256k1_scalar_mul(&u2, &rn, &sig->s);
     secp256k1_gej_t qj;
     secp256k1_ecmult(&qj, &xj, &u2, &u1);
     secp256k1_ge_set_gej_var(pubkey, &qj);
-    secp256k1_num_free(&rn);
-    secp256k1_num_free(&u1);
-    secp256k1_num_free(&u2);
     return !secp256k1_gej_is_infinity(&qj);
 }
 
-static int secp256k1_ecdsa_sig_verify(const secp256k1_ecdsa_sig_t *sig, const secp256k1_ge_t *pubkey, const secp256k1_num_t *message) {
-    secp256k1_num_t r2;
-    secp256k1_num_init(&r2);
-    int ret = 0;
-    ret = secp256k1_ecdsa_sig_recompute(&r2, sig, pubkey, message) && secp256k1_num_cmp(&sig->r, &r2) == 0;
-    secp256k1_num_free(&r2);
-    return ret;
-}
-
 static int secp256k1_ecdsa_sig_sign(secp256k1_ecdsa_sig_t *sig, const secp256k1_scalar_t *seckey, const secp256k1_scalar_t *message, const secp256k1_scalar_t *nonce, int *recid) {
     secp256k1_gej_t rp;
     secp256k1_ecmult_gen(&rp, nonce);
@@ -150,34 +197,36 @@ static int secp256k1_ecdsa_sig_sign(secp256k1_ecdsa_sig_t *sig, const secp256k1_
     secp256k1_fe_normalize(&r.y);
     secp256k1_fe_get_b32(b, &r.x);
     int overflow = 0;
-    secp256k1_scalar_t sigr;
-    secp256k1_scalar_set_b32(&sigr, b, &overflow);
+    secp256k1_scalar_set_b32(&sig->r, b, &overflow);
+    if (secp256k1_scalar_is_zero(&sig->r)) {
+        /* P.x = order is on the curve, so technically sig->r could end up zero, which would be an invalid signature. */
+        secp256k1_gej_clear(&rp);
+        secp256k1_ge_clear(&r);
+        return 0;
+    }
     if (recid)
         *recid = (overflow ? 2 : 0) | (secp256k1_fe_is_odd(&r.y) ? 1 : 0);
     secp256k1_scalar_t n;
-    secp256k1_scalar_mul(&n, &sigr, seckey);
+    secp256k1_scalar_mul(&n, &sig->r, seckey);
     secp256k1_scalar_add(&n, &n, message);
-    secp256k1_scalar_t sigs;
-    secp256k1_scalar_inverse(&sigs, nonce);
-    secp256k1_scalar_mul(&sigs, &sigs, &n);
+    secp256k1_scalar_inverse(&sig->s, nonce);
+    secp256k1_scalar_mul(&sig->s, &sig->s, &n);
     secp256k1_scalar_clear(&n);
     secp256k1_gej_clear(&rp);
     secp256k1_ge_clear(&r);
-    if (secp256k1_scalar_is_zero(&sigs))
+    if (secp256k1_scalar_is_zero(&sig->s))
         return 0;
-    if (secp256k1_scalar_is_high(&sigs)) {
-        secp256k1_scalar_negate(&sigs, &sigs);
+    if (secp256k1_scalar_is_high(&sig->s)) {
+        secp256k1_scalar_negate(&sig->s, &sig->s);
         if (recid)
             *recid ^= 1;
     }
-    secp256k1_scalar_get_num(&sig->s, &sigs);
-    secp256k1_scalar_get_num(&sig->r, &sigr);
     return 1;
 }
 
-static void secp256k1_ecdsa_sig_set_rs(secp256k1_ecdsa_sig_t *sig, const secp256k1_num_t *r, const secp256k1_num_t *s) {
-    secp256k1_num_copy(&sig->r, r);
-    secp256k1_num_copy(&sig->s, s);
+static void secp256k1_ecdsa_sig_set_rs(secp256k1_ecdsa_sig_t *sig, const secp256k1_scalar_t *r, const secp256k1_scalar_t *s) {
+    sig->r = *r;
+    sig->s = *s;
 }
 
 #endif
diff --git a/src/secp256k1/src/eckey.h b/src/secp256k1/src/eckey.h
index 024c8b821b..6de5dc0a59 100644
--- a/src/secp256k1/src/eckey.h
+++ b/src/secp256k1/src/eckey.h
@@ -9,7 +9,6 @@
 
 #include "group.h"
 #include "scalar.h"
-#include "num.h"
 
 static int secp256k1_eckey_pubkey_parse(secp256k1_ge_t *elem, const unsigned char *pub, int size);
 static int secp256k1_eckey_pubkey_serialize(secp256k1_ge_t *elem, unsigned char *pub, int *size, int compressed);
@@ -18,8 +17,8 @@ static int secp256k1_eckey_privkey_parse(secp256k1_scalar_t *key, const unsigned
 static int secp256k1_eckey_privkey_serialize(unsigned char *privkey, int *privkeylen, const secp256k1_scalar_t *key, int compressed);
 
 static int secp256k1_eckey_privkey_tweak_add(secp256k1_scalar_t *key, const secp256k1_scalar_t *tweak);
-static int secp256k1_eckey_pubkey_tweak_add(secp256k1_ge_t *key, const secp256k1_num_t *tweak);
+static int secp256k1_eckey_pubkey_tweak_add(secp256k1_ge_t *key, const secp256k1_scalar_t *tweak);
 static int secp256k1_eckey_privkey_tweak_mul(secp256k1_scalar_t *key, const secp256k1_scalar_t *tweak);
-static int secp256k1_eckey_pubkey_tweak_mul(secp256k1_ge_t *key, const secp256k1_num_t *tweak);
+static int secp256k1_eckey_pubkey_tweak_mul(secp256k1_ge_t *key, const secp256k1_scalar_t *tweak);
 
 #endif
diff --git a/src/secp256k1/src/eckey_impl.h b/src/secp256k1/src/eckey_impl.h
index 290b1f0900..b3fa7d9bd2 100644
--- a/src/secp256k1/src/eckey_impl.h
+++ b/src/secp256k1/src/eckey_impl.h
@@ -9,7 +9,7 @@
 
 #include "eckey.h"
 
-#include "num.h"
+#include "scalar.h"
 #include "field.h"
 #include "group.h"
 #include "ecmult_gen.h"
@@ -17,16 +17,16 @@
 static int secp256k1_eckey_pubkey_parse(secp256k1_ge_t *elem, const unsigned char *pub, int size) {
     if (size == 33 && (pub[0] == 0x02 || pub[0] == 0x03)) {
         secp256k1_fe_t x;
-        secp256k1_fe_set_b32(&x, pub+1);
-        return secp256k1_ge_set_xo(elem, &x, pub[0] == 0x03);
+        return secp256k1_fe_set_b32(&x, pub+1) && secp256k1_ge_set_xo_var(elem, &x, pub[0] == 0x03);
     } else if (size == 65 && (pub[0] == 0x04 || pub[0] == 0x06 || pub[0] == 0x07)) {
         secp256k1_fe_t x, y;
-        secp256k1_fe_set_b32(&x, pub+1);
-        secp256k1_fe_set_b32(&y, pub+33);
+        if (!secp256k1_fe_set_b32(&x, pub+1) || !secp256k1_fe_set_b32(&y, pub+33)) {
+            return 0;
+        }
         secp256k1_ge_set_xy(elem, &x, &y);
         if ((pub[0] == 0x06 || pub[0] == 0x07) && secp256k1_fe_is_odd(&y) != (pub[0] == 0x07))
             return 0;
-        return secp256k1_ge_is_valid(elem);
+        return secp256k1_ge_is_valid_var(elem);
     } else {
         return 0;
     }
@@ -36,8 +36,8 @@ static int secp256k1_eckey_pubkey_serialize(secp256k1_ge_t *elem, unsigned char
     if (secp256k1_ge_is_infinity(elem)) {
         return 0;
     }
-    secp256k1_fe_normalize(&elem->x);
-    secp256k1_fe_normalize(&elem->y);
+    secp256k1_fe_normalize_var(&elem->x);
+    secp256k1_fe_normalize_var(&elem->y);
     secp256k1_fe_get_b32(&pub[1], &elem->x);
     if (compressed) {
         *size = 33;
@@ -154,17 +154,12 @@ static int secp256k1_eckey_privkey_tweak_add(secp256k1_scalar_t *key, const secp
     return 1;
 }
 
-static int secp256k1_eckey_pubkey_tweak_add(secp256k1_ge_t *key, const secp256k1_num_t *tweak) {
-    if (secp256k1_num_cmp(tweak, &secp256k1_ge_consts->order) >= 0)
-        return 0;
-
+static int secp256k1_eckey_pubkey_tweak_add(secp256k1_ge_t *key, const secp256k1_scalar_t *tweak) {
     secp256k1_gej_t pt;
     secp256k1_gej_set_ge(&pt, key);
-    secp256k1_num_t one;
-    secp256k1_num_init(&one);
-    secp256k1_num_set_int(&one, 1);
+    secp256k1_scalar_t one;
+    secp256k1_scalar_set_int(&one, 1);
     secp256k1_ecmult(&pt, &pt, &one, tweak);
-    secp256k1_num_free(&one);
 
     if (secp256k1_gej_is_infinity(&pt))
         return 0;
@@ -180,19 +175,15 @@ static int secp256k1_eckey_privkey_tweak_mul(secp256k1_scalar_t *key, const secp
     return 1;
 }
 
-static int secp256k1_eckey_pubkey_tweak_mul(secp256k1_ge_t *key, const secp256k1_num_t *tweak) {
-    if (secp256k1_num_is_zero(tweak))
-        return 0;
-    if (secp256k1_num_cmp(tweak, &secp256k1_ge_consts->order) >= 0)
+static int secp256k1_eckey_pubkey_tweak_mul(secp256k1_ge_t *key, const secp256k1_scalar_t *tweak) {
+    if (secp256k1_scalar_is_zero(tweak))
         return 0;
 
-    secp256k1_num_t zero;
-    secp256k1_num_init(&zero);
-    secp256k1_num_set_int(&zero, 0);
+    secp256k1_scalar_t zero;
+    secp256k1_scalar_set_int(&zero, 0);
     secp256k1_gej_t pt;
     secp256k1_gej_set_ge(&pt, key);
     secp256k1_ecmult(&pt, &pt, tweak, &zero);
-    secp256k1_num_free(&zero);
     secp256k1_ge_set_gej(key, &pt);
     return 1;
 }
diff --git a/src/secp256k1/src/ecmult.h b/src/secp256k1/src/ecmult.h
index e3cf18b680..15a7100a4a 100644
--- a/src/secp256k1/src/ecmult.h
+++ b/src/secp256k1/src/ecmult.h
@@ -14,6 +14,6 @@ static void secp256k1_ecmult_start(void);
 static void secp256k1_ecmult_stop(void);
 
 /** Double multiply: R = na*A + ng*G */
-static void secp256k1_ecmult(secp256k1_gej_t *r, const secp256k1_gej_t *a, const secp256k1_num_t *na, const secp256k1_num_t *ng);
+static void secp256k1_ecmult(secp256k1_gej_t *r, const secp256k1_gej_t *a, const secp256k1_scalar_t *na, const secp256k1_scalar_t *ng);
 
 #endif
diff --git a/src/secp256k1/src/ecmult_gen_impl.h b/src/secp256k1/src/ecmult_gen_impl.h
index 07859ab04b..48436316e1 100644
--- a/src/secp256k1/src/ecmult_gen_impl.h
+++ b/src/secp256k1/src/ecmult_gen_impl.h
@@ -23,8 +23,8 @@ typedef struct {
      * precomputed (call it prec(i, n_i)). The formula now becomes sum(prec(i, n_i), i=0..63).
      * None of the resulting prec group elements have a known scalar, and neither do any of
      * the intermediate sums while computing a*G.
-     * To make memory access uniform, the bytes of prec(i, n_i) are sliced per value of n_i. */
-    unsigned char prec[64][sizeof(secp256k1_ge_t)][16]; /* prec[j][k][i] = k'th byte of (16^j * i * G + U_i) */
+     */
+    secp256k1_fe_t prec[64][16][2]; /* prec[j][i] = (16^j * i * G + U_i).{x,y} */
 } secp256k1_ecmult_gen_consts_t;
 
 static const secp256k1_ecmult_gen_consts_t *secp256k1_ecmult_gen_consts = NULL;
@@ -34,7 +34,7 @@ static void secp256k1_ecmult_gen_start(void) {
         return;
 
     /* Allocate the precomputation table. */
-    secp256k1_ecmult_gen_consts_t *ret = (secp256k1_ecmult_gen_consts_t*)malloc(sizeof(secp256k1_ecmult_gen_consts_t));
+    secp256k1_ecmult_gen_consts_t *ret = (secp256k1_ecmult_gen_consts_t*)checked_malloc(sizeof(secp256k1_ecmult_gen_consts_t));
 
     /* get the generator */
     const secp256k1_ge_t *g = &secp256k1_ge_consts->g;
@@ -45,9 +45,9 @@ static void secp256k1_ecmult_gen_start(void) {
     {
         static const unsigned char nums_b32[32] = "The scalar for this x is unknown";
         secp256k1_fe_t nums_x;
-        secp256k1_fe_set_b32(&nums_x, nums_b32);
+        VERIFY_CHECK(secp256k1_fe_set_b32(&nums_x, nums_b32));
         secp256k1_ge_t nums_ge;
-        VERIFY_CHECK(secp256k1_ge_set_xo(&nums_ge, &nums_x, 0));
+        VERIFY_CHECK(secp256k1_ge_set_xo_var(&nums_ge, &nums_x, 0));
         secp256k1_gej_set_ge(&nums_gej, &nums_ge);
         /* Add G to make the bits in x uniformly distributed. */
         secp256k1_gej_add_ge_var(&nums_gej, &nums_gej, g);
@@ -81,9 +81,9 @@ static void secp256k1_ecmult_gen_start(void) {
     }
     for (int j=0; j<64; j++) {
         for (int i=0; i<16; i++) {
-            const unsigned char* raw = (const unsigned char*)(&prec[j*16 + i]);
-            for (size_t k=0; k<sizeof(secp256k1_ge_t); k++)
-                ret->prec[j][k][i] = raw[k];
+            VERIFY_CHECK(!secp256k1_ge_is_infinity(&prec[j*16 + i]));
+            ret->prec[j][i][0] = prec[j*16 + i].x;
+            ret->prec[j][i][1] = prec[j*16 + i].y;
         }
     }
 
@@ -104,11 +104,14 @@ static void secp256k1_ecmult_gen(secp256k1_gej_t *r, const secp256k1_scalar_t *g
     const secp256k1_ecmult_gen_consts_t *c = secp256k1_ecmult_gen_consts;
     secp256k1_gej_set_infinity(r);
     secp256k1_ge_t add;
+    add.infinity = 0;
     int bits;
     for (int j=0; j<64; j++) {
         bits = secp256k1_scalar_get_bits(gn, j * 4, 4);
-        for (size_t k=0; k<sizeof(secp256k1_ge_t); k++)
-            ((unsigned char*)(&add))[k] = c->prec[j][k][bits];
+        for (int i=0; i<16; i++) {
+            secp256k1_fe_cmov(&add.x, &c->prec[j][i][0], i == bits);
+            secp256k1_fe_cmov(&add.y, &c->prec[j][i][1], i == bits);
+        }
         secp256k1_gej_add_ge(r, r, &add);
     }
     bits = 0;
diff --git a/src/secp256k1/src/ecmult_impl.h b/src/secp256k1/src/ecmult_impl.h
index 508902564e..345cfae733 100644
--- a/src/secp256k1/src/ecmult_impl.h
+++ b/src/secp256k1/src/ecmult_impl.h
@@ -7,16 +7,22 @@
 #ifndef _SECP256K1_ECMULT_IMPL_H_
 #define _SECP256K1_ECMULT_IMPL_H_
 
-#include "num.h"
 #include "group.h"
+#include "scalar.h"
 #include "ecmult.h"
 
 /* optimal for 128-bit and 256-bit exponents. */
 #define WINDOW_A 5
 
 /** larger numbers may result in slightly better performance, at the cost of
-    exponentially larger precomputed tables. WINDOW_G == 14 results in 640 KiB. */
-#define WINDOW_G 14
+    exponentially larger precomputed tables. */
+#ifdef USE_ENDOMORPHISM
+/** Two tables for window size 15: 1.375 MiB. */
+#define WINDOW_G 15
+#else
+/** One table for window size 16: 1.375 MiB. */
+#define WINDOW_G 16
+#endif
 
 /** Fill a table 'pre' with precomputed odd multiples of a. W determines the size of the table.
  *  pre will contains the values [1*a,3*a,5*a,...,(2^(w-1)-1)*a], so it needs place for
@@ -39,13 +45,14 @@ static void secp256k1_ecmult_table_precomp_gej_var(secp256k1_gej_t *pre, const s
 
 static void secp256k1_ecmult_table_precomp_ge_var(secp256k1_ge_t *pre, const secp256k1_gej_t *a, int w) {
     const int table_size = 1 << (w-2);
-    secp256k1_gej_t prej[table_size];
+    secp256k1_gej_t *prej = checked_malloc(sizeof(secp256k1_gej_t) * table_size);
     prej[0] = *a;
     secp256k1_gej_t d; secp256k1_gej_double_var(&d, a);
     for (int i=1; i<table_size; i++) {
         secp256k1_gej_add_var(&prej[i], &d, &prej[i-1]);
     }
     secp256k1_ge_set_all_gej_var(table_size, pre, prej);
+    free(prej);
 }
 
 /** The number of entries a table with precomputed multiples needs to have. */
@@ -69,7 +76,9 @@ static void secp256k1_ecmult_table_precomp_ge_var(secp256k1_ge_t *pre, const sec
 typedef struct {
     /* For accelerating the computation of a*P + b*G: */
     secp256k1_ge_t pre_g[ECMULT_TABLE_SIZE(WINDOW_G)];    /* odd multiples of the generator */
+#ifdef USE_ENDOMORPHISM
     secp256k1_ge_t pre_g_128[ECMULT_TABLE_SIZE(WINDOW_G)]; /* odd multiples of 2^128*generator */
+#endif
 } secp256k1_ecmult_consts_t;
 
 static const secp256k1_ecmult_consts_t *secp256k1_ecmult_consts = NULL;
@@ -79,20 +88,24 @@ static void secp256k1_ecmult_start(void) {
         return;
 
     /* Allocate the precomputation table. */
-    secp256k1_ecmult_consts_t *ret = (secp256k1_ecmult_consts_t*)malloc(sizeof(secp256k1_ecmult_consts_t));
+    secp256k1_ecmult_consts_t *ret = (secp256k1_ecmult_consts_t*)checked_malloc(sizeof(secp256k1_ecmult_consts_t));
 
     /* get the generator */
     const secp256k1_ge_t *g = &secp256k1_ge_consts->g;
     secp256k1_gej_t gj; secp256k1_gej_set_ge(&gj, g);
 
+#ifdef USE_ENDOMORPHISM
     /* calculate 2^128*generator */
     secp256k1_gej_t g_128j = gj;
     for (int i=0; i<128; i++)
         secp256k1_gej_double_var(&g_128j, &g_128j);
+#endif
 
     /* precompute the tables with odd multiples */
     secp256k1_ecmult_table_precomp_ge_var(ret->pre_g, &gj, WINDOW_G);
+#ifdef USE_ENDOMORPHISM
     secp256k1_ecmult_table_precomp_ge_var(ret->pre_g_128, &g_128j, WINDOW_G);
+#endif
 
     /* Set the global pointer to the precomputation table. */
     secp256k1_ecmult_consts = ret;
@@ -111,56 +124,62 @@ static void secp256k1_ecmult_stop(void) {
  *  with the following guarantees:
  *  - each wnaf[i] is either 0, or an odd integer between -(1<<(w-1) - 1) and (1<<(w-1) - 1)
  *  - two non-zero entries in wnaf are separated by at least w-1 zeroes.
- *  - the index of the highest non-zero entry in wnaf (=return value-1) is at most bits, where
- *    bits is the number of bits necessary to represent the absolute value of the input.
+ *  - the number of set values in wnaf is returned. This number is at most 256, and at most one more
+ *  - than the number of bits in the (absolute value) of the input.
  */
-static int secp256k1_ecmult_wnaf(int *wnaf, const secp256k1_num_t *a, int w) {
-    int ret = 0;
-    int zeroes = 0;
-    secp256k1_num_t x;
-    secp256k1_num_copy(&x, a);
+static int secp256k1_ecmult_wnaf(int *wnaf, const secp256k1_scalar_t *a, int w) {
+    secp256k1_scalar_t s = *a;
+
     int sign = 1;
-    if (secp256k1_num_is_neg(&x)) {
+    if (secp256k1_scalar_get_bits(&s, 255, 1)) {
+        secp256k1_scalar_negate(&s, &s);
         sign = -1;
-        secp256k1_num_negate(&x);
     }
-    while (!secp256k1_num_is_zero(&x)) {
-        while (!secp256k1_num_is_odd(&x)) {
-            zeroes++;
-            secp256k1_num_shift(&x, 1);
+
+    int set_bits = 0;
+    int bit = 0;
+    while (bit < 256) {
+        if (secp256k1_scalar_get_bits(&s, bit, 1) == 0) {
+            bit++;
+            continue;
+        }
+        while (set_bits < bit) {
+            wnaf[set_bits++] = 0;
         }
-        int word = secp256k1_num_shift(&x, w);
-        while (zeroes) {
-            wnaf[ret++] = 0;
-            zeroes--;
+        int now = w;
+        if (bit + now > 256) {
+            now = 256 - bit;
         }
+        int word = secp256k1_scalar_get_bits_var(&s, bit, now);
         if (word & (1 << (w-1))) {
-            secp256k1_num_inc(&x);
-            wnaf[ret++] = sign * (word - (1 << w));
+            secp256k1_scalar_add_bit(&s, bit + w);
+            wnaf[set_bits++] = sign * (word - (1 << w));
         } else {
-            wnaf[ret++] = sign * word;
+            wnaf[set_bits++] = sign * word;
         }
-        zeroes = w-1;
+        bit += now;
     }
-    return ret;
+    return set_bits;
 }
 
-static void secp256k1_ecmult(secp256k1_gej_t *r, const secp256k1_gej_t *a, const secp256k1_num_t *na, const secp256k1_num_t *ng) {
+static void secp256k1_ecmult(secp256k1_gej_t *r, const secp256k1_gej_t *a, const secp256k1_scalar_t *na, const secp256k1_scalar_t *ng) {
     const secp256k1_ecmult_consts_t *c = secp256k1_ecmult_consts;
 
 #ifdef USE_ENDOMORPHISM
-    secp256k1_num_t na_1, na_lam;
+    secp256k1_scalar_t na_1, na_lam;
     /* split na into na_1 and na_lam (where na = na_1 + na_lam*lambda, and na_1 and na_lam are ~128 bit) */
-    secp256k1_gej_split_exp_var(&na_1, &na_lam, na);
+    secp256k1_scalar_split_lambda_var(&na_1, &na_lam, na);
 
     /* build wnaf representation for na_1 and na_lam. */
-    int wnaf_na_1[129];   int bits_na_1   = secp256k1_ecmult_wnaf(wnaf_na_1,   &na_1,   WINDOW_A);
-    int wnaf_na_lam[129]; int bits_na_lam = secp256k1_ecmult_wnaf(wnaf_na_lam, &na_lam, WINDOW_A);
+    int wnaf_na_1[130];   int bits_na_1   = secp256k1_ecmult_wnaf(wnaf_na_1,   &na_1,   WINDOW_A);
+    int wnaf_na_lam[130]; int bits_na_lam = secp256k1_ecmult_wnaf(wnaf_na_lam, &na_lam, WINDOW_A);
+    VERIFY_CHECK(bits_na_1 <= 130);
+    VERIFY_CHECK(bits_na_lam <= 130);
     int bits = bits_na_1;
     if (bits_na_lam > bits) bits = bits_na_lam;
 #else
     /* build wnaf representation for na. */
-    int wnaf_na[257];     int bits_na     = secp256k1_ecmult_wnaf(wnaf_na,     na,      WINDOW_A);
+    int wnaf_na[256];     int bits_na     = secp256k1_ecmult_wnaf(wnaf_na,     na,      WINDOW_A);
     int bits = bits_na;
 #endif
 
@@ -172,19 +191,22 @@ static void secp256k1_ecmult(secp256k1_gej_t *r, const secp256k1_gej_t *a, const
     secp256k1_gej_t pre_a_lam[ECMULT_TABLE_SIZE(WINDOW_A)];
     for (int i=0; i<ECMULT_TABLE_SIZE(WINDOW_A); i++)
         secp256k1_gej_mul_lambda(&pre_a_lam[i], &pre_a[i]);
-#endif
 
     /* Splitted G factors. */
-    secp256k1_num_t ng_1, ng_128;
+    secp256k1_scalar_t ng_1, ng_128;
 
     /* split ng into ng_1 and ng_128 (where gn = gn_1 + gn_128*2^128, and gn_1 and gn_128 are ~128 bit) */
-    secp256k1_num_split(&ng_1, &ng_128, ng, 128);
+    secp256k1_scalar_split_128(&ng_1, &ng_128, ng);
 
     /* Build wnaf representation for ng_1 and ng_128 */
     int wnaf_ng_1[129];   int bits_ng_1   = secp256k1_ecmult_wnaf(wnaf_ng_1,   &ng_1,   WINDOW_G);
     int wnaf_ng_128[129]; int bits_ng_128 = secp256k1_ecmult_wnaf(wnaf_ng_128, &ng_128, WINDOW_G);
     if (bits_ng_1 > bits) bits = bits_ng_1;
     if (bits_ng_128 > bits) bits = bits_ng_128;
+#else
+    int wnaf_ng[257];     int bits_ng     = secp256k1_ecmult_wnaf(wnaf_ng,     ng,      WINDOW_G);
+    if (bits_ng > bits) bits = bits_ng;
+#endif
 
     secp256k1_gej_set_infinity(r);
     secp256k1_gej_t tmpj;
@@ -202,12 +224,6 @@ static void secp256k1_ecmult(secp256k1_gej_t *r, const secp256k1_gej_t *a, const
             ECMULT_TABLE_GET_GEJ(&tmpj, pre_a_lam, n, WINDOW_A);
             secp256k1_gej_add_var(r, r, &tmpj);
         }
-#else
-        if (i < bits_na && (n = wnaf_na[i])) {
-            ECMULT_TABLE_GET_GEJ(&tmpj, pre_a, n, WINDOW_A);
-            secp256k1_gej_add_var(r, r, &tmpj);
-        }
-#endif
         if (i < bits_ng_1 && (n = wnaf_ng_1[i])) {
             ECMULT_TABLE_GET_GE(&tmpa, c->pre_g, n, WINDOW_G);
             secp256k1_gej_add_ge_var(r, r, &tmpa);
@@ -216,6 +232,16 @@ static void secp256k1_ecmult(secp256k1_gej_t *r, const secp256k1_gej_t *a, const
             ECMULT_TABLE_GET_GE(&tmpa, c->pre_g_128, n, WINDOW_G);
             secp256k1_gej_add_ge_var(r, r, &tmpa);
         }
+#else
+        if (i < bits_na && (n = wnaf_na[i])) {
+            ECMULT_TABLE_GET_GEJ(&tmpj, pre_a, n, WINDOW_A);
+            secp256k1_gej_add_var(r, r, &tmpj);
+        }
+        if (i < bits_ng && (n = wnaf_ng[i])) {
+            ECMULT_TABLE_GET_GE(&tmpa, c->pre_g, n, WINDOW_G);
+            secp256k1_gej_add_ge_var(r, r, &tmpa);
+        }
+#endif
     }
 }
 
diff --git a/src/secp256k1/src/field.h b/src/secp256k1/src/field.h
index c7feead900..14e2b813c1 100644
--- a/src/secp256k1/src/field.h
+++ b/src/secp256k1/src/field.h
@@ -22,9 +22,7 @@
 #include "libsecp256k1-config.h"
 #endif
 
-#if defined(USE_FIELD_GMP)
-#include "field_gmp.h"
-#elif defined(USE_FIELD_10X26)
+#if defined(USE_FIELD_10X26)
 #include "field_10x26.h"
 #elif defined(USE_FIELD_5X52)
 #include "field_5x52.h"
@@ -33,7 +31,10 @@
 #endif
 
 typedef struct {
+#ifndef USE_NUM_NONE
     secp256k1_num_t p;
+#endif
+    secp256k1_fe_t order;
 } secp256k1_fe_consts_t;
 
 static const secp256k1_fe_consts_t *secp256k1_fe_consts = NULL;
@@ -47,6 +48,20 @@ static void secp256k1_fe_stop(void);
 /** Normalize a field element. */
 static void secp256k1_fe_normalize(secp256k1_fe_t *r);
 
+/** Weakly normalize a field element: reduce it magnitude to 1, but don't fully normalize. */
+static void secp256k1_fe_normalize_weak(secp256k1_fe_t *r);
+
+/** Normalize a field element, without constant-time guarantee. */
+static void secp256k1_fe_normalize_var(secp256k1_fe_t *r);
+
+/** Verify whether a field element represents zero i.e. would normalize to a zero value. The field
+ *  implementation may optionally normalize the input, but this should not be relied upon. */
+static int secp256k1_fe_normalizes_to_zero(secp256k1_fe_t *r);
+
+/** Verify whether a field element represents zero i.e. would normalize to a zero value. The field
+ *  implementation may optionally normalize the input, but this should not be relied upon. */
+static int secp256k1_fe_normalizes_to_zero_var(secp256k1_fe_t *r);
+
 /** Set a field element equal to a small integer. Resulting field element is normalized. */
 static void secp256k1_fe_set_int(secp256k1_fe_t *r, int a);
 
@@ -56,11 +71,14 @@ static int secp256k1_fe_is_zero(const secp256k1_fe_t *a);
 /** Check the "oddness" of a field element. Requires the input to be normalized. */
 static int secp256k1_fe_is_odd(const secp256k1_fe_t *a);
 
+/** Compare two field elements. Requires magnitude-1 inputs. */
+static int secp256k1_fe_equal_var(const secp256k1_fe_t *a, const secp256k1_fe_t *b);
+
 /** Compare two field elements. Requires both inputs to be normalized */
-static int secp256k1_fe_equal(const secp256k1_fe_t *a, const secp256k1_fe_t *b);
+static int secp256k1_fe_cmp_var(const secp256k1_fe_t *a, const secp256k1_fe_t *b);
 
-/** Set a field element equal to 32-byte big endian value. Resulting field element is normalized. */
-static void secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a);
+/** Set a field element equal to 32-byte big endian value. If succesful, the resulting field element is normalized. */
+static int secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a);
 
 /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */
 static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe_t *a);
@@ -78,7 +96,7 @@ static void secp256k1_fe_add(secp256k1_fe_t *r, const secp256k1_fe_t *a);
 
 /** Sets a field element to be the product of two others. Requires the inputs' magnitudes to be at most 8.
  *  The output magnitude is 1 (but not guaranteed to be normalized). */
-static void secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *a, const secp256k1_fe_t *b);
+static void secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *a, const secp256k1_fe_t * SECP256K1_RESTRICT b);
 
 /** Sets a field element to be the square of another. Requires the input's magnitude to be at most 8.
  *  The output magnitude is 1 (but not guaranteed to be normalized). */
@@ -87,7 +105,7 @@ static void secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *a);
 /** Sets a field element to be the (modular) square root (if any exist) of another. Requires the
  *  input's magnitude to be at most 8. The output magnitude is 1 (but not guaranteed to be
  *  normalized). Return value indicates whether a square root was found. */
-static int secp256k1_fe_sqrt(secp256k1_fe_t *r, const secp256k1_fe_t *a);
+static int secp256k1_fe_sqrt_var(secp256k1_fe_t *r, const secp256k1_fe_t *a);
 
 /** Sets a field element to be the (modular) inverse of another. Requires the input's magnitude to be
  *  at most 8. The output magnitude is 1 (but not guaranteed to be normalized). */
@@ -99,16 +117,15 @@ static void secp256k1_fe_inv_var(secp256k1_fe_t *r, const secp256k1_fe_t *a);
 /** Calculate the (modular) inverses of a batch of field elements. Requires the inputs' magnitudes to be
  *  at most 8. The output magnitudes are 1 (but not guaranteed to be normalized). The inputs and
  *  outputs must not overlap in memory. */
-static void secp256k1_fe_inv_all(size_t len, secp256k1_fe_t r[len], const secp256k1_fe_t a[len]);
-
-/** Potentially faster version of secp256k1_fe_inv_all, without constant-time guarantee. */
 static void secp256k1_fe_inv_all_var(size_t len, secp256k1_fe_t r[len], const secp256k1_fe_t a[len]);
 
-
 /** Convert a field element to a hexadecimal string. */
 static void secp256k1_fe_get_hex(char *r, int *rlen, const secp256k1_fe_t *a);
 
 /** Convert a hexadecimal string to a field element. */
-static void secp256k1_fe_set_hex(secp256k1_fe_t *r, const char *a, int alen);
+static int secp256k1_fe_set_hex(secp256k1_fe_t *r, const char *a, int alen);
+
+/** If flag is true, set *r equal to *a; otherwise leave it. Constant-time. */
+static void secp256k1_fe_cmov(secp256k1_fe_t *r, const secp256k1_fe_t *a, int flag);
 
 #endif
diff --git a/src/secp256k1/src/field_10x26_impl.h b/src/secp256k1/src/field_10x26_impl.h
index c0f1be0b2d..9ef60a807a 100644
--- a/src/secp256k1/src/field_10x26_impl.h
+++ b/src/secp256k1/src/field_10x26_impl.h
@@ -31,6 +31,7 @@ static void secp256k1_fe_verify(const secp256k1_fe_t *a) {
     r &= (d[8] <= 0x3FFFFFFUL * m);
     r &= (d[9] <= 0x03FFFFFUL * m);
     r &= (a->magnitude >= 0);
+    r &= (a->magnitude <= 32);
     if (a->normalized) {
         r &= (a->magnitude <= 1);
         if (r && (d[9] == 0x03FFFFFUL)) {
@@ -103,6 +104,160 @@ static void secp256k1_fe_normalize(secp256k1_fe_t *r) {
 #endif
 }
 
+static void secp256k1_fe_normalize_weak(secp256k1_fe_t *r) {
+    uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4],
+             t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9];
+
+    /* Reduce t9 at the start so there will be at most a single carry from the first pass */
+    uint32_t x = t9 >> 22; t9 &= 0x03FFFFFUL;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x3D1UL; t1 += (x << 6);
+    t1 += (t0 >> 26); t0 &= 0x3FFFFFFUL;
+    t2 += (t1 >> 26); t1 &= 0x3FFFFFFUL;
+    t3 += (t2 >> 26); t2 &= 0x3FFFFFFUL;
+    t4 += (t3 >> 26); t3 &= 0x3FFFFFFUL;
+    t5 += (t4 >> 26); t4 &= 0x3FFFFFFUL;
+    t6 += (t5 >> 26); t5 &= 0x3FFFFFFUL;
+    t7 += (t6 >> 26); t6 &= 0x3FFFFFFUL;
+    t8 += (t7 >> 26); t7 &= 0x3FFFFFFUL;
+    t9 += (t8 >> 26); t8 &= 0x3FFFFFFUL;
+
+    /* ... except for a possible carry at bit 22 of t9 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t9 >> 23 == 0);
+
+    r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4;
+    r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9;
+
+#ifdef VERIFY
+    r->magnitude = 1;
+    secp256k1_fe_verify(r);
+#endif
+}
+
+static void secp256k1_fe_normalize_var(secp256k1_fe_t *r) {
+    uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4],
+             t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9];
+
+    /* Reduce t9 at the start so there will be at most a single carry from the first pass */
+    uint32_t x = t9 >> 22; t9 &= 0x03FFFFFUL;
+    uint32_t m;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x3D1UL; t1 += (x << 6);
+    t1 += (t0 >> 26); t0 &= 0x3FFFFFFUL;
+    t2 += (t1 >> 26); t1 &= 0x3FFFFFFUL;
+    t3 += (t2 >> 26); t2 &= 0x3FFFFFFUL; m = t2;
+    t4 += (t3 >> 26); t3 &= 0x3FFFFFFUL; m &= t3;
+    t5 += (t4 >> 26); t4 &= 0x3FFFFFFUL; m &= t4;
+    t6 += (t5 >> 26); t5 &= 0x3FFFFFFUL; m &= t5;
+    t7 += (t6 >> 26); t6 &= 0x3FFFFFFUL; m &= t6;
+    t8 += (t7 >> 26); t7 &= 0x3FFFFFFUL; m &= t7;
+    t9 += (t8 >> 26); t8 &= 0x3FFFFFFUL; m &= t8;
+
+    /* ... except for a possible carry at bit 22 of t9 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t9 >> 23 == 0);
+
+    /* At most a single final reduction is needed; check if the value is >= the field characteristic */
+    x = (t9 >> 22) | ((t9 == 0x03FFFFFUL) & (m == 0x3FFFFFFUL)
+        & ((t1 + 0x40UL + ((t0 + 0x3D1UL) >> 26)) > 0x3FFFFFFUL));
+
+    if (x) {
+        t0 += 0x3D1UL; t1 += (x << 6);
+        t1 += (t0 >> 26); t0 &= 0x3FFFFFFUL;
+        t2 += (t1 >> 26); t1 &= 0x3FFFFFFUL;
+        t3 += (t2 >> 26); t2 &= 0x3FFFFFFUL;
+        t4 += (t3 >> 26); t3 &= 0x3FFFFFFUL;
+        t5 += (t4 >> 26); t4 &= 0x3FFFFFFUL;
+        t6 += (t5 >> 26); t5 &= 0x3FFFFFFUL;
+        t7 += (t6 >> 26); t6 &= 0x3FFFFFFUL;
+        t8 += (t7 >> 26); t7 &= 0x3FFFFFFUL;
+        t9 += (t8 >> 26); t8 &= 0x3FFFFFFUL;
+
+        /* If t9 didn't carry to bit 22 already, then it should have after any final reduction */
+        VERIFY_CHECK(t9 >> 22 == x);
+
+        /* Mask off the possible multiple of 2^256 from the final reduction */
+        t9 &= 0x03FFFFFUL;
+    }
+
+    r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4;
+    r->n[5] = t5; r->n[6] = t6; r->n[7] = t7; r->n[8] = t8; r->n[9] = t9;
+
+#ifdef VERIFY
+    r->magnitude = 1;
+    r->normalized = 1;
+    secp256k1_fe_verify(r);
+#endif
+}
+
+static int secp256k1_fe_normalizes_to_zero(secp256k1_fe_t *r) {
+    uint32_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4],
+             t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8], t9 = r->n[9];
+
+    /* Reduce t9 at the start so there will be at most a single carry from the first pass */
+    uint32_t x = t9 >> 22; t9 &= 0x03FFFFFUL;
+
+    /* z0 tracks a possible raw value of 0, z1 tracks a possible raw value of P */
+    uint32_t z0, z1;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x3D1UL; t1 += (x << 6);
+    t1 += (t0 >> 26); t0 &= 0x3FFFFFFUL; z0  = t0; z1  = t0 ^ 0x3D0UL;
+    t2 += (t1 >> 26); t1 &= 0x3FFFFFFUL; z0 |= t1; z1 &= t1 ^ 0x40UL;
+    t3 += (t2 >> 26); t2 &= 0x3FFFFFFUL; z0 |= t2; z1 &= t2;
+    t4 += (t3 >> 26); t3 &= 0x3FFFFFFUL; z0 |= t3; z1 &= t3;
+    t5 += (t4 >> 26); t4 &= 0x3FFFFFFUL; z0 |= t4; z1 &= t4;
+    t6 += (t5 >> 26); t5 &= 0x3FFFFFFUL; z0 |= t5; z1 &= t5;
+    t7 += (t6 >> 26); t6 &= 0x3FFFFFFUL; z0 |= t6; z1 &= t6;
+    t8 += (t7 >> 26); t7 &= 0x3FFFFFFUL; z0 |= t7; z1 &= t7;
+    t9 += (t8 >> 26); t8 &= 0x3FFFFFFUL; z0 |= t8; z1 &= t8;
+                                         z0 |= t9; z1 &= t9 ^ 0x3C00000UL;
+
+    /* ... except for a possible carry at bit 22 of t9 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t9 >> 23 == 0);
+
+    return (z0 == 0) | (z1 == 0x3FFFFFFUL);
+}
+
+static int secp256k1_fe_normalizes_to_zero_var(secp256k1_fe_t *r) {
+    uint32_t t0 = r->n[0], t9 = r->n[9];
+
+    /* Reduce t9 at the start so there will be at most a single carry from the first pass */
+    uint32_t x = t9 >> 22;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x3D1UL;
+
+    /* z0 tracks a possible raw value of 0, z1 tracks a possible raw value of P */
+    uint32_t z0 = t0 & 0x3FFFFFFUL, z1 = z0 ^ 0x3D0UL;
+
+    /* Fast return path should catch the majority of cases */
+    if ((z0 != 0UL) & (z1 != 0x3FFFFFFUL))
+        return 0;
+
+    uint32_t t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4],
+             t5 = r->n[5], t6 = r->n[6], t7 = r->n[7], t8 = r->n[8];
+    t9 &= 0x03FFFFFUL;
+    t1 += (x << 6);
+
+    t1 += (t0 >> 26); t0  = z0;
+    t2 += (t1 >> 26); t1 &= 0x3FFFFFFUL; z0 |= t1; z1 &= t1 ^ 0x40UL;
+    t3 += (t2 >> 26); t2 &= 0x3FFFFFFUL; z0 |= t2; z1 &= t2;
+    t4 += (t3 >> 26); t3 &= 0x3FFFFFFUL; z0 |= t3; z1 &= t3;
+    t5 += (t4 >> 26); t4 &= 0x3FFFFFFUL; z0 |= t4; z1 &= t4;
+    t6 += (t5 >> 26); t5 &= 0x3FFFFFFUL; z0 |= t5; z1 &= t5;
+    t7 += (t6 >> 26); t6 &= 0x3FFFFFFUL; z0 |= t6; z1 &= t6;
+    t8 += (t7 >> 26); t7 &= 0x3FFFFFFUL; z0 |= t7; z1 &= t7;
+    t9 += (t8 >> 26); t8 &= 0x3FFFFFFUL; z0 |= t8; z1 &= t8;
+                                         z0 |= t9; z1 &= t9 ^ 0x3C00000UL;
+
+    /* ... except for a possible carry at bit 22 of t9 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t9 >> 23 == 0);
+
+    return (z0 == 0) | (z1 == 0x3FFFFFFUL);
+}
+
 SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe_t *r, int a) {
     r->n[0] = a;
     r->n[1] = r->n[2] = r->n[3] = r->n[4] = r->n[5] = r->n[6] = r->n[7] = r->n[8] = r->n[9] = 0;
@@ -140,19 +295,21 @@ SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe_t *a) {
     }
 }
 
-SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
+static int secp256k1_fe_cmp_var(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
 #ifdef VERIFY
     VERIFY_CHECK(a->normalized);
     VERIFY_CHECK(b->normalized);
     secp256k1_fe_verify(a);
     secp256k1_fe_verify(b);
 #endif
-    const uint32_t *t = a->n, *u = b->n;
-    return ((t[0]^u[0]) | (t[1]^u[1]) | (t[2]^u[2]) | (t[3]^u[3]) | (t[4]^u[4])
-          | (t[5]^u[5]) | (t[6]^u[6]) | (t[7]^u[7]) | (t[8]^u[8]) | (t[9]^u[9])) == 0;
+    for (int i = 9; i >= 0; i--) {
+        if (a->n[i] > b->n[i]) return 1;
+        if (a->n[i] < b->n[i]) return -1;
+    }
+    return 0;
 }
 
-static void secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a) {
+static int secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a) {
     r->n[0] = r->n[1] = r->n[2] = r->n[3] = r->n[4] = 0;
     r->n[5] = r->n[6] = r->n[7] = r->n[8] = r->n[9] = 0;
     for (int i=0; i<32; i++) {
@@ -162,11 +319,15 @@ static void secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a) {
             r->n[limb] |= (uint32_t)((a[31-i] >> (2*j)) & 0x3) << shift;
         }
     }
+    if (r->n[9] == 0x3FFFFFUL && (r->n[8] & r->n[7] & r->n[6] & r->n[5] & r->n[4] & r->n[3] & r->n[2]) == 0x3FFFFFFUL && (r->n[1] + 0x40UL + ((r->n[0] + 0x3D1UL) >> 26)) > 0x3FFFFFFUL) {
+        return 0;
+    }
 #ifdef VERIFY
     r->magnitude = 1;
     r->normalized = 1;
     secp256k1_fe_verify(r);
 #endif
+    return 1;
 }
 
 /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */
@@ -253,7 +414,7 @@ SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe_t *r, const secp256k1
 #define VERIFY_BITS(x, n) do { } while(0)
 #endif
 
-SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint32_t *a, const uint32_t *b, uint32_t *r) {
+SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint32_t *r, const uint32_t *a, const uint32_t * SECP256K1_RESTRICT b) {
     VERIFY_BITS(a[0], 30);
     VERIFY_BITS(a[1], 30);
     VERIFY_BITS(a[2], 30);
@@ -580,7 +741,7 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint32_t *a, const uin
     /* [r9 r8 r7 r6 r5 r4 r3 r2 r1 r0] = [p18 p17 p16 p15 p14 p13 p12 p11 p10 p9 p8 p7 p6 p5 p4 p3 p2 p1 p0] */
 }
 
-SECP256K1_INLINE static void secp256k1_fe_sqr_inner(const uint32_t *a, uint32_t *r) {
+SECP256K1_INLINE static void secp256k1_fe_sqr_inner(uint32_t *r, const uint32_t *a) {
     VERIFY_BITS(a[0], 30);
     VERIFY_BITS(a[1], 30);
     VERIFY_BITS(a[2], 30);
@@ -853,14 +1014,15 @@ SECP256K1_INLINE static void secp256k1_fe_sqr_inner(const uint32_t *a, uint32_t
 }
 
 
-static void secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
+static void secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *a, const secp256k1_fe_t * SECP256K1_RESTRICT b) {
 #ifdef VERIFY
     VERIFY_CHECK(a->magnitude <= 8);
     VERIFY_CHECK(b->magnitude <= 8);
     secp256k1_fe_verify(a);
     secp256k1_fe_verify(b);
+    VERIFY_CHECK(r != b);
 #endif
-    secp256k1_fe_mul_inner(a->n, b->n, r->n);
+    secp256k1_fe_mul_inner(r->n, a->n, b->n);
 #ifdef VERIFY
     r->magnitude = 1;
     r->normalized = 0;
@@ -873,7 +1035,7 @@ static void secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
     VERIFY_CHECK(a->magnitude <= 8);
     secp256k1_fe_verify(a);
 #endif
-    secp256k1_fe_sqr_inner(a->n, r->n);
+    secp256k1_fe_sqr_inner(r->n, a->n);
 #ifdef VERIFY
     r->magnitude = 1;
     r->normalized = 0;
@@ -881,4 +1043,24 @@ static void secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
 #endif
 }
 
+static void secp256k1_fe_cmov(secp256k1_fe_t *r, const secp256k1_fe_t *a, int flag) {
+    uint32_t mask0 = flag + ~((uint32_t)0), mask1 = ~mask0;
+    r->n[0] = (r->n[0] & mask0) | (a->n[0] & mask1);
+    r->n[1] = (r->n[1] & mask0) | (a->n[1] & mask1);
+    r->n[2] = (r->n[2] & mask0) | (a->n[2] & mask1);
+    r->n[3] = (r->n[3] & mask0) | (a->n[3] & mask1);
+    r->n[4] = (r->n[4] & mask0) | (a->n[4] & mask1);
+    r->n[5] = (r->n[5] & mask0) | (a->n[5] & mask1);
+    r->n[6] = (r->n[6] & mask0) | (a->n[6] & mask1);
+    r->n[7] = (r->n[7] & mask0) | (a->n[7] & mask1);
+    r->n[8] = (r->n[8] & mask0) | (a->n[8] & mask1);
+    r->n[9] = (r->n[9] & mask0) | (a->n[9] & mask1);
+#ifdef VERIFY
+    if (flag) {
+        r->magnitude = a->magnitude;
+        r->normalized = a->normalized;
+    }
+#endif
+}
+
 #endif
diff --git a/src/secp256k1/src/field_5x52_asm.asm b/src/secp256k1/src/field_5x52_asm.asm
deleted file mode 100644
index 5e785f7630..0000000000
--- a/src/secp256k1/src/field_5x52_asm.asm
+++ /dev/null
@@ -1,469 +0,0 @@
-	;; Added by Diederik Huys, March 2013
-	;;
-	;; Provided public procedures:
-	;; 	secp256k1_fe_mul_inner
-	;; 	secp256k1_fe_sqr_inner
-	;;
-	;; Needed tools: YASM (http://yasm.tortall.net)
-	;;
-	;; 
-
-	BITS 64
-
-%ifidn   __OUTPUT_FORMAT__,macho64
-%define SYM(x) _ %+ x
-%else
-%define SYM(x) x
-%endif
-
-	;;  Procedure ExSetMult
-	;;  Register Layout:
-	;;  INPUT: 	rdi	= a->n
-	;; 	   	rsi  	= b->n
-	;; 	   	rdx  	= r->a
-	;; 
-	;;  INTERNAL:	rdx:rax  = multiplication accumulator
-	;; 		r9:r8    = c
-	;; 		r10-r13  = t0-t3
-	;; 		r14	 = b.n[0] / t4
-	;; 		r15	 = b.n[1] / t5
-	;; 		rbx	 = b.n[2] / t6
-	;; 		rcx	 = b.n[3] / t7
-	;; 		rbp	 = Constant 0FFFFFFFFFFFFFh / t8
-	;; 		rsi	 = b.n / b.n[4] / t9
-
-	GLOBAL SYM(secp256k1_fe_mul_inner)
-	ALIGN 32
-SYM(secp256k1_fe_mul_inner):
-	push rbp
-	push rbx
-	push r12
-	push r13
-	push r14
-	push r15
-	push rdx
-	mov r14,[rsi+8*0]	; preload b.n[0]. This will be the case until
-				; b.n[0] is no longer needed, then we reassign
-				; r14 to t4
-	;; c=a.n[0] * b.n[0]
-   	mov rax,[rdi+0*8]	; load a.n[0]
-	mov rbp,0FFFFFFFFFFFFFh
-	mul r14			; rdx:rax=a.n[0]*b.n[0]
-	mov r15,[rsi+1*8]
-	mov r10,rbp		; load modulus into target register for t0
-	mov r8,rax
-	and r10,rax		; only need lower qword of c
-	shrd r8,rdx,52
-	xor r9,r9		; c < 2^64, so we ditch the HO part 
-
-	;; c+=a.n[0] * b.n[1] + a.n[1] * b.n[0]
-	mov rax,[rdi+0*8]
-	mul r15			
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+1*8]
-	mul r14			
-	mov r11,rbp
-	mov rbx,[rsi+2*8]
-	add r8,rax
-	adc r9,rdx
-	and r11,r8
-	shrd r8,r9,52
-	xor r9,r9
-	
-	;; c+=a.n[0 1 2] * b.n[2 1 0]
-	mov rax,[rdi+0*8]
-	mul rbx			
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+1*8]
-	mul r15			
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+2*8]
-	mul r14
-	mov r12,rbp		
-	mov rcx,[rsi+3*8]
-	add r8,rax
-	adc r9,rdx
-	and r12,r8		
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=a.n[0 1 2 3] * b.n[3 2 1 0]
-	mov rax,[rdi+0*8]
-	mul rcx			
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+1*8]
-	mul rbx			
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+2*8]
-	mul r15			
-	add r8,rax
-	adc r9,rdx
-	
-	mov rax,[rdi+3*8]
-	mul r14			
-	mov r13,rbp             
-	mov rsi,[rsi+4*8]	; load b.n[4] and destroy pointer
-	add r8,rax
-	adc r9,rdx
-	and r13,r8
-
-	shrd r8,r9,52
-	xor r9,r9		
-
-
-	;; c+=a.n[0 1 2 3 4] * b.n[4 3 2 1 0]
-	mov rax,[rdi+0*8]
-	mul rsi
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+1*8]
-	mul rcx
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+2*8]
-	mul rbx			
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+3*8]
-	mul r15			
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+4*8]
-	mul r14			
-	mov r14,rbp             ; load modulus into t4 and destroy a.n[0]
-	add r8,rax
-	adc r9,rdx
-	and r14,r8
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=a.n[1 2 3 4] * b.n[4 3 2 1]
-	mov rax,[rdi+1*8]
-	mul rsi
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+2*8]
-	mul rcx
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+3*8]
-	mul rbx
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+4*8]
-	mul r15
-	mov r15,rbp		
-	add r8,rax
-	adc r9,rdx
-
-	and r15,r8
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=a.n[2 3 4] * b.n[4 3 2]
-	mov rax,[rdi+2*8]
-	mul rsi
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+3*8]
-	mul rcx
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+4*8]
-	mul rbx
-	mov rbx,rbp		
-	add r8,rax
-	adc r9,rdx
-
-	and rbx,r8		
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=a.n[3 4] * b.n[4 3]
-	mov rax,[rdi+3*8]
-	mul rsi
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,[rdi+4*8]
-	mul rcx
-	mov rcx,rbp		
-	add r8,rax
-	adc r9,rdx
-	and rcx,r8		
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=a.n[4] * b.n[4]
-	mov rax,[rdi+4*8]
-	mul rsi
-	;; mov rbp,rbp		; modulus already there!
-	add r8,rax
-	adc r9,rdx
-	and rbp,r8 
-	shrd r8,r9,52
-	xor r9,r9		
-
-	mov rsi,r8		; load c into t9 and destroy b.n[4]
-
-	;; *******************************************************
-common_exit_norm:
-	mov rdi,01000003D10h	; load constant
-
-	mov rax,r15		; get t5
-	mul rdi
-	add rax,r10    		; +t0
-	adc rdx,0
-	mov r10,0FFFFFFFFFFFFFh ; modulus. Sadly, we ran out of registers!
-	mov r8,rax		; +c
-	and r10,rax
-	shrd r8,rdx,52
-	xor r9,r9
-
-	mov rax,rbx		; get t6
-	mul rdi
-	add rax,r11		; +t1
-	adc rdx,0
-	mov r11,0FFFFFFFFFFFFFh ; modulus
-	add r8,rax		; +c
-	adc r9,rdx
-	and r11,r8
-	shrd r8,r9,52
-	xor r9,r9
-
-	mov rax,rcx    		; get t7
-	mul rdi
-	add rax,r12		; +t2
-	adc rdx,0
-	pop rbx			; retrieve pointer to this.n	
-	mov r12,0FFFFFFFFFFFFFh ; modulus
-	add r8,rax		; +c
-	adc r9,rdx
-	and r12,r8
-	mov [rbx+2*8],r12	; mov into this.n[2]
-	shrd r8,r9,52
-	xor r9,r9
-	
-	mov rax,rbp    		; get t8
-	mul rdi
-	add rax,r13    		; +t3
-	adc rdx,0
-	mov r13,0FFFFFFFFFFFFFh ; modulus
-	add r8,rax		; +c
-	adc r9,rdx
-	and r13,r8
-	mov [rbx+3*8],r13	; -> this.n[3]
-	shrd r8,r9,52
-	xor r9,r9
-	
-	mov rax,rsi    		; get t9
-	mul rdi
-	add rax,r14    		; +t4
-	adc rdx,0
-	mov r14,0FFFFFFFFFFFFh	; !!!
-	add r8,rax		; +c
-	adc r9,rdx
-	and r14,r8
-	mov [rbx+4*8],r14	; -> this.n[4]
-	shrd r8,r9,48		; !!!
-	xor r9,r9
-	
-	mov rax,01000003D1h
-	mul r8		
-	add rax,r10
-	adc rdx,0
-	mov r10,0FFFFFFFFFFFFFh ; modulus
-	mov r8,rax
-	and rax,r10
-	shrd r8,rdx,52
-	mov [rbx+0*8],rax	; -> this.n[0]
-	add r8,r11
-	mov [rbx+1*8],r8	; -> this.n[1]
-
-	pop r15
-	pop r14
-	pop r13
-	pop r12
-	pop rbx
-	pop rbp
-	ret
-
-	
-	;;  PROC ExSetSquare
-	;;  Register Layout:
-	;;  INPUT: 	rdi	 = a.n
-	;; 	   	rsi  	 = this.a
-	;;  INTERNAL:	rdx:rax  = multiplication accumulator
-	;; 		r9:r8    = c
-	;; 		r10-r13  = t0-t3
-	;; 		r14	 = a.n[0] / t4
-	;; 		r15	 = a.n[1] / t5
-	;; 		rbx	 = a.n[2] / t6
-	;; 		rcx	 = a.n[3] / t7
-	;; 		rbp	 = 0FFFFFFFFFFFFFh / t8
-	;; 		rsi	 = a.n[4] / t9
-	GLOBAL SYM(secp256k1_fe_sqr_inner)
-	ALIGN 32
-SYM(secp256k1_fe_sqr_inner):
-	push rbp
-	push rbx
-	push r12
-	push r13
-	push r14
-	push r15
-	push rsi
-	mov rbp,0FFFFFFFFFFFFFh
-	
-	;; c=a.n[0] * a.n[0]
-   	mov r14,[rdi+0*8]	; r14=a.n[0]
-	mov r10,rbp		; modulus 
-	mov rax,r14
-	mul rax
-	mov r15,[rdi+1*8]	; a.n[1]
-	add r14,r14		; r14=2*a.n[0]
-	mov r8,rax
-	and r10,rax		; only need lower qword
-	shrd r8,rdx,52
-	xor r9,r9
-
-	;; c+=2*a.n[0] * a.n[1]
-	mov rax,r14		; r14=2*a.n[0]
-	mul r15
-	mov rbx,[rdi+2*8]	; rbx=a.n[2]
-	mov r11,rbp 		; modulus
-	add r8,rax
-	adc r9,rdx
-	and r11,r8
-	shrd r8,r9,52
-	xor r9,r9
-	
-	;; c+=2*a.n[0]*a.n[2]+a.n[1]*a.n[1]
-	mov rax,r14
-	mul rbx
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,r15
-	mov r12,rbp		; modulus
-	mul rax
-	mov rcx,[rdi+3*8]	; rcx=a.n[3]
-	add r15,r15		; r15=a.n[1]*2
-	add r8,rax
-	adc r9,rdx
-	and r12,r8		; only need lower dword
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=2*a.n[0]*a.n[3]+2*a.n[1]*a.n[2]
-	mov rax,r14
-	mul rcx
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,r15		; rax=2*a.n[1]
-	mov r13,rbp		; modulus
-	mul rbx
-	mov rsi,[rdi+4*8]	; rsi=a.n[4]
-	add r8,rax
-	adc r9,rdx
-	and r13,r8
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=2*a.n[0]*a.n[4]+2*a.n[1]*a.n[3]+a.n[2]*a.n[2]
-	mov rax,r14		; last time we need 2*a.n[0]
-	mul rsi
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,r15
-	mul rcx
-	mov r14,rbp		; modulus
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,rbx
-	mul rax
-	add rbx,rbx		; rcx=2*a.n[2]
-	add r8,rax
-	adc r9,rdx
-	and r14,r8
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=2*a.n[1]*a.n[4]+2*a.n[2]*a.n[3]
-	mov rax,r15		; last time we need 2*a.n[1]
-	mul rsi
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,rbx
-	mul rcx
-	mov r15,rbp		; modulus
-	add r8,rax
-	adc r9,rdx
-	and r15,r8
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=2*a.n[2]*a.n[4]+a.n[3]*a.n[3]
-	mov rax,rbx		; last time we need 2*a.n[2]
-	mul rsi
-	add r8,rax
-	adc r9,rdx
-
-	mov rax,rcx		; a.n[3]
-	mul rax
-	mov rbx,rbp		; modulus
-	add r8,rax
-	adc r9,rdx
-	and rbx,r8		; only need lower dword
-	lea rax,[2*rcx]
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=2*a.n[3]*a.n[4]
-	mul rsi
-	mov rcx,rbp		; modulus
-	add r8,rax
-	adc r9,rdx
-	and rcx,r8		; only need lower dword
-	shrd r8,r9,52
-	xor r9,r9		
-
-	;; c+=a.n[4]*a.n[4]
-	mov rax,rsi
-	mul rax
-	;; mov rbp,rbp		; modulus is already there!
-	add r8,rax
-	adc r9,rdx
-	and rbp,r8 
-	shrd r8,r9,52
-	xor r9,r9		
-
-	mov rsi,r8
-
-	;; *******************************************************
-	jmp common_exit_norm
-	end
-
-	
diff --git a/src/secp256k1/src/field_5x52_asm_impl.h b/src/secp256k1/src/field_5x52_asm_impl.h
index f29605b11b..98cc004bf0 100644
--- a/src/secp256k1/src/field_5x52_asm_impl.h
+++ b/src/secp256k1/src/field_5x52_asm_impl.h
@@ -1,13 +1,502 @@
 /**********************************************************************
- * Copyright (c) 2013 Pieter Wuille                                   *
+ * Copyright (c) 2013-2014 Diederik Huys, Pieter Wuille               *
  * Distributed under the MIT software license, see the accompanying   *
  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
  **********************************************************************/
 
+/**
+ * Changelog:
+ * - March 2013, Diederik Huys:    original version
+ * - November 2014, Pieter Wuille: updated to use Peter Dettman's parallel multiplication algorithm
+ * - December 2014, Pieter Wuille: converted from YASM to GCC inline assembly
+ */
+
 #ifndef _SECP256K1_FIELD_INNER5X52_IMPL_H_
 #define _SECP256K1_FIELD_INNER5X52_IMPL_H_
 
-void __attribute__ ((sysv_abi)) secp256k1_fe_mul_inner(const uint64_t *a, const uint64_t *b, uint64_t *r);
-void __attribute__ ((sysv_abi)) secp256k1_fe_sqr_inner(const uint64_t *a, uint64_t *r);
+SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t *a, const uint64_t * SECP256K1_RESTRICT b) {
+/**
+ * Registers: rdx:rax = multiplication accumulator
+ *            r9:r8   = c
+ *            r15:rcx = d
+ *            r10-r14 = a0-a4
+ *            rbx     = b
+ *            rdi     = r
+ *            rsi     = a / t?
+ */
+  uint64_t tmp1, tmp2, tmp3;
+__asm__ __volatile__(
+    "movq 0(%%rsi),%%r10\n"
+    "movq 8(%%rsi),%%r11\n"
+    "movq 16(%%rsi),%%r12\n"
+    "movq 24(%%rsi),%%r13\n"
+    "movq 32(%%rsi),%%r14\n"
+
+    /* d += a3 * b0 */
+    "movq 0(%%rbx),%%rax\n"
+    "mulq %%r13\n"
+    "movq %%rax,%%rcx\n"
+    "movq %%rdx,%%r15\n"
+    /* d += a2 * b1 */
+    "movq 8(%%rbx),%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a1 * b2 */
+    "movq 16(%%rbx),%%rax\n"
+    "mulq %%r11\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d = a0 * b3 */
+    "movq 24(%%rbx),%%rax\n"
+    "mulq %%r10\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* c = a4 * b4 */
+    "movq 32(%%rbx),%%rax\n"
+    "mulq %%r14\n"
+    "movq %%rax,%%r8\n"
+    "movq %%rdx,%%r9\n"
+    /* d += (c & M) * R */
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* c >>= 52 (%%r8 only) */
+    "shrdq $52,%%r9,%%r8\n"
+    /* t3 (tmp1) = d & M */
+    "movq %%rcx,%%rsi\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rsi\n"
+    "movq %%rsi,%q1\n"
+    /* d >>= 52 */
+    "shrdq $52,%%r15,%%rcx\n"
+    "xorq %%r15,%%r15\n"
+    /* d += a4 * b0 */
+    "movq 0(%%rbx),%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a3 * b1 */
+    "movq 8(%%rbx),%%rax\n"
+    "mulq %%r13\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a2 * b2 */
+    "movq 16(%%rbx),%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a1 * b3 */
+    "movq 24(%%rbx),%%rax\n"
+    "mulq %%r11\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a0 * b4 */
+    "movq 32(%%rbx),%%rax\n"
+    "mulq %%r10\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += c * R */
+    "movq %%r8,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* t4 = d & M (%%rsi) */
+    "movq %%rcx,%%rsi\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rsi\n"
+    /* d >>= 52 */
+    "shrdq $52,%%r15,%%rcx\n"
+    "xorq %%r15,%%r15\n"
+    /* tx = t4 >> 48 (tmp3) */
+    "movq %%rsi,%%rax\n"
+    "shrq $48,%%rax\n"
+    "movq %%rax,%q3\n"
+    /* t4 &= (M >> 4) (tmp2) */
+    "movq $0xffffffffffff,%%rax\n"
+    "andq %%rax,%%rsi\n"
+    "movq %%rsi,%q2\n"
+    /* c = a0 * b0 */
+    "movq 0(%%rbx),%%rax\n"
+    "mulq %%r10\n"
+    "movq %%rax,%%r8\n"
+    "movq %%rdx,%%r9\n"
+    /* d += a4 * b1 */
+    "movq 8(%%rbx),%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a3 * b2 */
+    "movq 16(%%rbx),%%rax\n"
+    "mulq %%r13\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a2 * b3 */
+    "movq 24(%%rbx),%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a1 * b4 */
+    "movq 32(%%rbx),%%rax\n"
+    "mulq %%r11\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* u0 = d & M (%%rsi) */
+    "movq %%rcx,%%rsi\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rsi\n"
+    /* d >>= 52 */
+    "shrdq $52,%%r15,%%rcx\n"
+    "xorq %%r15,%%r15\n"
+    /* u0 = (u0 << 4) | tx (%%rsi) */
+    "shlq $4,%%rsi\n"
+    "movq %q3,%%rax\n"
+    "orq %%rax,%%rsi\n"
+    /* c += u0 * (R >> 4) */
+    "movq $0x1000003d1,%%rax\n"
+    "mulq %%rsi\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* r[0] = c & M */
+    "movq %%r8,%%rax\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rax\n"
+    "movq %%rax,0(%%rdi)\n"
+    /* c >>= 52 */
+    "shrdq $52,%%r9,%%r8\n"
+    "xorq %%r9,%%r9\n"
+    /* c += a1 * b0 */
+    "movq 0(%%rbx),%%rax\n"
+    "mulq %%r11\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* c += a0 * b1 */
+    "movq 8(%%rbx),%%rax\n"
+    "mulq %%r10\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* d += a4 * b2 */
+    "movq 16(%%rbx),%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a3 * b3 */
+    "movq 24(%%rbx),%%rax\n"
+    "mulq %%r13\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a2 * b4 */
+    "movq 32(%%rbx),%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* c += (d & M) * R */
+    "movq %%rcx,%%rax\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* d >>= 52 */
+    "shrdq $52,%%r15,%%rcx\n"
+    "xorq %%r15,%%r15\n"
+    /* r[1] = c & M */
+    "movq %%r8,%%rax\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rax\n"
+    "movq %%rax,8(%%rdi)\n"
+    /* c >>= 52 */
+    "shrdq $52,%%r9,%%r8\n"
+    "xorq %%r9,%%r9\n"
+    /* c += a2 * b0 */
+    "movq 0(%%rbx),%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* c += a1 * b1 */
+    "movq 8(%%rbx),%%rax\n"
+    "mulq %%r11\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* c += a0 * b2 (last use of %%r10 = a0) */
+    "movq 16(%%rbx),%%rax\n"
+    "mulq %%r10\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* fetch t3 (%%r10, overwrites a0), t4 (%%rsi) */
+    "movq %q2,%%rsi\n"
+    "movq %q1,%%r10\n"
+    /* d += a4 * b3 */
+    "movq 24(%%rbx),%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* d += a3 * b4 */
+    "movq 32(%%rbx),%%rax\n"
+    "mulq %%r13\n"
+    "addq %%rax,%%rcx\n"
+    "adcq %%rdx,%%r15\n"
+    /* c += (d & M) * R */
+    "movq %%rcx,%%rax\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* d >>= 52 (%%rcx only) */
+    "shrdq $52,%%r15,%%rcx\n"
+    /* r[2] = c & M */
+    "movq %%r8,%%rax\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rax\n"
+    "movq %%rax,16(%%rdi)\n"
+    /* c >>= 52 */
+    "shrdq $52,%%r9,%%r8\n"
+    "xorq %%r9,%%r9\n"
+    /* c += t3 */
+    "addq %%r10,%%r8\n"
+    /* c += d * R */
+    "movq %%rcx,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* r[3] = c & M */
+    "movq %%r8,%%rax\n"
+    "movq $0xfffffffffffff,%%rdx\n"
+    "andq %%rdx,%%rax\n"
+    "movq %%rax,24(%%rdi)\n"
+    /* c >>= 52 (%%r8 only) */
+    "shrdq $52,%%r9,%%r8\n"
+    /* c += t4 (%%r8 only) */
+    "addq %%rsi,%%r8\n"
+    /* r[4] = c */
+    "movq %%r8,32(%%rdi)\n"
+: "+S"(a), "=m"(tmp1), "=m"(tmp2), "=m"(tmp3)
+: "b"(b), "D"(r)
+: "%rax", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "cc", "memory"
+);
+}
+
+SECP256K1_INLINE static void secp256k1_fe_sqr_inner(uint64_t *r, const uint64_t *a) {
+/**
+ * Registers: rdx:rax = multiplication accumulator
+ *            r9:r8   = c
+ *            rcx:rbx = d
+ *            r10-r14 = a0-a4
+ *            r15     = M (0xfffffffffffff)
+ *            rdi     = r
+ *            rsi     = a / t?
+ */
+  uint64_t tmp1, tmp2, tmp3;
+__asm__ __volatile__(
+    "movq 0(%%rsi),%%r10\n"
+    "movq 8(%%rsi),%%r11\n"
+    "movq 16(%%rsi),%%r12\n"
+    "movq 24(%%rsi),%%r13\n"
+    "movq 32(%%rsi),%%r14\n"
+    "movq $0xfffffffffffff,%%r15\n"
+
+    /* d = (a0*2) * a3 */
+    "leaq (%%r10,%%r10,1),%%rax\n"
+    "mulq %%r13\n"
+    "movq %%rax,%%rbx\n"
+    "movq %%rdx,%%rcx\n"
+    /* d += (a1*2) * a2 */
+    "leaq (%%r11,%%r11,1),%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* c = a4 * a4 */
+    "movq %%r14,%%rax\n"
+    "mulq %%r14\n"
+    "movq %%rax,%%r8\n"
+    "movq %%rdx,%%r9\n"
+    /* d += (c & M) * R */
+    "andq %%r15,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* c >>= 52 (%%r8 only) */
+    "shrdq $52,%%r9,%%r8\n"
+    /* t3 (tmp1) = d & M */
+    "movq %%rbx,%%rsi\n"
+    "andq %%r15,%%rsi\n"
+    "movq %%rsi,%q1\n"
+    /* d >>= 52 */
+    "shrdq $52,%%rcx,%%rbx\n"
+    "xorq %%rcx,%%rcx\n"
+    /* a4 *= 2 */
+    "addq %%r14,%%r14\n"
+    /* d += a0 * a4 */
+    "movq %%r10,%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* d+= (a1*2) * a3 */
+    "leaq (%%r11,%%r11,1),%%rax\n"
+    "mulq %%r13\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* d += a2 * a2 */
+    "movq %%r12,%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* d += c * R */
+    "movq %%r8,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* t4 = d & M (%%rsi) */
+    "movq %%rbx,%%rsi\n"
+    "andq %%r15,%%rsi\n"
+    /* d >>= 52 */
+    "shrdq $52,%%rcx,%%rbx\n"
+    "xorq %%rcx,%%rcx\n"
+    /* tx = t4 >> 48 (tmp3) */
+    "movq %%rsi,%%rax\n"
+    "shrq $48,%%rax\n"
+    "movq %%rax,%q3\n"
+    /* t4 &= (M >> 4) (tmp2) */
+    "movq $0xffffffffffff,%%rax\n"
+    "andq %%rax,%%rsi\n"
+    "movq %%rsi,%q2\n"
+    /* c = a0 * a0 */
+    "movq %%r10,%%rax\n"
+    "mulq %%r10\n"
+    "movq %%rax,%%r8\n"
+    "movq %%rdx,%%r9\n"
+    /* d += a1 * a4 */
+    "movq %%r11,%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* d += (a2*2) * a3 */
+    "leaq (%%r12,%%r12,1),%%rax\n"
+    "mulq %%r13\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* u0 = d & M (%%rsi) */
+    "movq %%rbx,%%rsi\n"
+    "andq %%r15,%%rsi\n"
+    /* d >>= 52 */
+    "shrdq $52,%%rcx,%%rbx\n"
+    "xorq %%rcx,%%rcx\n"
+    /* u0 = (u0 << 4) | tx (%%rsi) */
+    "shlq $4,%%rsi\n"
+    "movq %q3,%%rax\n"
+    "orq %%rax,%%rsi\n"
+    /* c += u0 * (R >> 4) */
+    "movq $0x1000003d1,%%rax\n"
+    "mulq %%rsi\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* r[0] = c & M */
+    "movq %%r8,%%rax\n"
+    "andq %%r15,%%rax\n"
+    "movq %%rax,0(%%rdi)\n"
+    /* c >>= 52 */
+    "shrdq $52,%%r9,%%r8\n"
+    "xorq %%r9,%%r9\n"
+    /* a0 *= 2 */
+    "addq %%r10,%%r10\n"
+    /* c += a0 * a1 */
+    "movq %%r10,%%rax\n"
+    "mulq %%r11\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* d += a2 * a4 */
+    "movq %%r12,%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* d += a3 * a3 */
+    "movq %%r13,%%rax\n"
+    "mulq %%r13\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* c += (d & M) * R */
+    "movq %%rbx,%%rax\n"
+    "andq %%r15,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* d >>= 52 */
+    "shrdq $52,%%rcx,%%rbx\n"
+    "xorq %%rcx,%%rcx\n"
+    /* r[1] = c & M */
+    "movq %%r8,%%rax\n"
+    "andq %%r15,%%rax\n"
+    "movq %%rax,8(%%rdi)\n"
+    /* c >>= 52 */
+    "shrdq $52,%%r9,%%r8\n"
+    "xorq %%r9,%%r9\n"
+    /* c += a0 * a2 (last use of %%r10) */
+    "movq %%r10,%%rax\n"
+    "mulq %%r12\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* fetch t3 (%%r10, overwrites a0),t4 (%%rsi) */
+    "movq %q2,%%rsi\n"
+    "movq %q1,%%r10\n"
+    /* c += a1 * a1 */
+    "movq %%r11,%%rax\n"
+    "mulq %%r11\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* d += a3 * a4 */
+    "movq %%r13,%%rax\n"
+    "mulq %%r14\n"
+    "addq %%rax,%%rbx\n"
+    "adcq %%rdx,%%rcx\n"
+    /* c += (d & M) * R */
+    "movq %%rbx,%%rax\n"
+    "andq %%r15,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* d >>= 52 (%%rbx only) */
+    "shrdq $52,%%rcx,%%rbx\n"
+    /* r[2] = c & M */
+    "movq %%r8,%%rax\n"
+    "andq %%r15,%%rax\n"
+    "movq %%rax,16(%%rdi)\n"
+    /* c >>= 52 */
+    "shrdq $52,%%r9,%%r8\n"
+    "xorq %%r9,%%r9\n"
+    /* c += t3 */
+    "addq %%r10,%%r8\n"
+    /* c += d * R */
+    "movq %%rbx,%%rax\n"
+    "movq $0x1000003d10,%%rdx\n"
+    "mulq %%rdx\n"
+    "addq %%rax,%%r8\n"
+    "adcq %%rdx,%%r9\n"
+    /* r[3] = c & M */
+    "movq %%r8,%%rax\n"
+    "andq %%r15,%%rax\n"
+    "movq %%rax,24(%%rdi)\n"
+    /* c >>= 52 (%%r8 only) */
+    "shrdq $52,%%r9,%%r8\n"
+    /* c += t4 (%%r8 only) */
+    "addq %%rsi,%%r8\n"
+    /* r[4] = c */
+    "movq %%r8,32(%%rdi)\n"
+: "+S"(a), "=m"(tmp1), "=m"(tmp2), "=m"(tmp3)
+: "D"(r)
+: "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15", "cc", "memory"
+);
+}
 
 #endif
diff --git a/src/secp256k1/src/field_5x52_impl.h b/src/secp256k1/src/field_5x52_impl.h
index d1b06d05a4..4db9e6f5ff 100644
--- a/src/secp256k1/src/field_5x52_impl.h
+++ b/src/secp256k1/src/field_5x52_impl.h
@@ -16,12 +16,10 @@
 #include "num.h"
 #include "field.h"
 
-#if defined(USE_FIELD_5X52_ASM)
+#if defined(USE_ASM_X86_64)
 #include "field_5x52_asm_impl.h"
-#elif defined(USE_FIELD_5X52_INT128)
-#include "field_5x52_int128_impl.h"
 #else
-#error "Please select field_5x52 implementation"
+#include "field_5x52_int128_impl.h"
 #endif
 
 /** Implements arithmetic modulo FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFF FFFFFFFE FFFFFC2F,
@@ -45,6 +43,7 @@ static void secp256k1_fe_verify(const secp256k1_fe_t *a) {
     r &= (d[3] <= 0xFFFFFFFFFFFFFULL * m);
     r &= (d[4] <= 0x0FFFFFFFFFFFFULL * m);
     r &= (a->magnitude >= 0);
+    r &= (a->magnitude <= 2048);
     if (a->normalized) {
         r &= (a->magnitude <= 1);
         if (r && (d[4] == 0x0FFFFFFFFFFFFULL) && ((d[3] & d[2] & d[1]) == 0xFFFFFFFFFFFFFULL)) {
@@ -102,6 +101,128 @@ static void secp256k1_fe_normalize(secp256k1_fe_t *r) {
 #endif
 }
 
+static void secp256k1_fe_normalize_weak(secp256k1_fe_t *r) {
+    uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4];
+
+    /* Reduce t4 at the start so there will be at most a single carry from the first pass */
+    uint64_t x = t4 >> 48; t4 &= 0x0FFFFFFFFFFFFULL;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x1000003D1ULL;
+    t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;
+    t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL;
+    t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL;
+    t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL;
+
+    /* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t4 >> 49 == 0);
+
+    r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4;
+
+#ifdef VERIFY
+    r->magnitude = 1;
+    secp256k1_fe_verify(r);
+#endif
+}
+
+static void secp256k1_fe_normalize_var(secp256k1_fe_t *r) {
+    uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4];
+
+    /* Reduce t4 at the start so there will be at most a single carry from the first pass */
+    uint64_t x = t4 >> 48; t4 &= 0x0FFFFFFFFFFFFULL;
+    uint64_t m;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x1000003D1ULL;
+    t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;
+    t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL; m = t1;
+    t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL; m &= t2;
+    t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL; m &= t3;
+
+    /* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t4 >> 49 == 0);
+
+    /* At most a single final reduction is needed; check if the value is >= the field characteristic */
+    x = (t4 >> 48) | ((t4 == 0x0FFFFFFFFFFFFULL) & (m == 0xFFFFFFFFFFFFFULL)
+        & (t0 >= 0xFFFFEFFFFFC2FULL));
+
+    if (x) {
+        t0 += 0x1000003D1ULL;
+        t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL;
+        t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL;
+        t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL;
+        t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL;
+
+        /* If t4 didn't carry to bit 48 already, then it should have after any final reduction */
+        VERIFY_CHECK(t4 >> 48 == x);
+
+        /* Mask off the possible multiple of 2^256 from the final reduction */
+        t4 &= 0x0FFFFFFFFFFFFULL;
+    }
+
+    r->n[0] = t0; r->n[1] = t1; r->n[2] = t2; r->n[3] = t3; r->n[4] = t4;
+
+#ifdef VERIFY
+    r->magnitude = 1;
+    r->normalized = 1;
+    secp256k1_fe_verify(r);
+#endif
+}
+
+static int secp256k1_fe_normalizes_to_zero(secp256k1_fe_t *r) {
+    uint64_t t0 = r->n[0], t1 = r->n[1], t2 = r->n[2], t3 = r->n[3], t4 = r->n[4];
+
+    /* Reduce t4 at the start so there will be at most a single carry from the first pass */
+    uint64_t x = t4 >> 48; t4 &= 0x0FFFFFFFFFFFFULL;
+
+    /* z0 tracks a possible raw value of 0, z1 tracks a possible raw value of P */
+    uint64_t z0, z1;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x1000003D1ULL;
+    t1 += (t0 >> 52); t0 &= 0xFFFFFFFFFFFFFULL; z0  = t0; z1  = t0 ^ 0x1000003D0ULL;
+    t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL; z0 |= t1; z1 &= t1;
+    t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL; z0 |= t2; z1 &= t2;
+    t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL; z0 |= t3; z1 &= t3;
+                                                z0 |= t4; z1 &= t4 ^ 0xF000000000000ULL;
+
+    /* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t4 >> 49 == 0);
+
+    return (z0 == 0) | (z1 == 0xFFFFFFFFFFFFFULL);
+}
+
+static int secp256k1_fe_normalizes_to_zero_var(secp256k1_fe_t *r) {
+    uint64_t t0 = r->n[0], t4 = r->n[4];
+
+    /* Reduce t4 at the start so there will be at most a single carry from the first pass */
+    uint64_t x = t4 >> 48;
+
+    /* The first pass ensures the magnitude is 1, ... */
+    t0 += x * 0x1000003D1ULL;
+
+    /* z0 tracks a possible raw value of 0, z1 tracks a possible raw value of P */
+    uint64_t z0 = t0 & 0xFFFFFFFFFFFFFULL, z1 = z0 ^ 0x1000003D0ULL;
+
+    /* Fast return path should catch the majority of cases */
+    if ((z0 != 0ULL) & (z1 != 0xFFFFFFFFFFFFFULL))
+        return 0;
+
+    uint64_t t1 = r->n[1], t2 = r->n[2], t3 = r->n[3];
+    t4 &= 0x0FFFFFFFFFFFFULL;
+
+    t1 += (t0 >> 52); t0  = z0;
+    t2 += (t1 >> 52); t1 &= 0xFFFFFFFFFFFFFULL; z0 |= t1; z1 &= t1;
+    t3 += (t2 >> 52); t2 &= 0xFFFFFFFFFFFFFULL; z0 |= t2; z1 &= t2;
+    t4 += (t3 >> 52); t3 &= 0xFFFFFFFFFFFFFULL; z0 |= t3; z1 &= t3;
+                                                z0 |= t4; z1 &= t4 ^ 0xF000000000000ULL;
+
+    /* ... except for a possible carry at bit 48 of t4 (i.e. bit 256 of the field element) */
+    VERIFY_CHECK(t4 >> 49 == 0);
+
+    return (z0 == 0) | (z1 == 0xFFFFFFFFFFFFFULL);
+}
+
 SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe_t *r, int a) {
     r->n[0] = a;
     r->n[1] = r->n[2] = r->n[3] = r->n[4] = 0;
@@ -139,18 +260,21 @@ SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe_t *a) {
     }
 }
 
-SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
+static int secp256k1_fe_cmp_var(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
 #ifdef VERIFY
     VERIFY_CHECK(a->normalized);
     VERIFY_CHECK(b->normalized);
     secp256k1_fe_verify(a);
     secp256k1_fe_verify(b);
 #endif
-    const uint64_t *t = a->n, *u = b->n;
-    return ((t[0]^u[0]) | (t[1]^u[1]) | (t[2]^u[2]) | (t[3]^u[3]) | (t[4]^u[4])) == 0;
+    for (int i = 4; i >= 0; i--) {
+        if (a->n[i] > b->n[i]) return 1;
+        if (a->n[i] < b->n[i]) return -1;
+    }
+    return 0;
 }
 
-static void secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a) {
+static int secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a) {
     r->n[0] = r->n[1] = r->n[2] = r->n[3] = r->n[4] = 0;
     for (int i=0; i<32; i++) {
         for (int j=0; j<2; j++) {
@@ -159,11 +283,15 @@ static void secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a) {
             r->n[limb] |= (uint64_t)((a[31-i] >> (4*j)) & 0xF) << shift;
         }
     }
+    if (r->n[4] == 0x0FFFFFFFFFFFFULL && (r->n[3] & r->n[2] & r->n[1]) == 0xFFFFFFFFFFFFFULL && r->n[0] >= 0xFFFFEFFFFFC2FULL) {
+        return 0;
+    }
 #ifdef VERIFY
     r->magnitude = 1;
     r->normalized = 1;
     secp256k1_fe_verify(r);
 #endif
+    return 1;
 }
 
 /** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */
@@ -229,14 +357,15 @@ SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe_t *r, const secp256k1
 #endif
 }
 
-static void secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
+static void secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *a, const secp256k1_fe_t * SECP256K1_RESTRICT b) {
 #ifdef VERIFY
     VERIFY_CHECK(a->magnitude <= 8);
     VERIFY_CHECK(b->magnitude <= 8);
     secp256k1_fe_verify(a);
     secp256k1_fe_verify(b);
+    VERIFY_CHECK(r != b);
 #endif
-    secp256k1_fe_mul_inner(a->n, b->n, r->n);
+    secp256k1_fe_mul_inner(r->n, a->n, b->n);
 #ifdef VERIFY
     r->magnitude = 1;
     r->normalized = 0;
@@ -249,7 +378,7 @@ static void secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
     VERIFY_CHECK(a->magnitude <= 8);
     secp256k1_fe_verify(a);
 #endif
-    secp256k1_fe_sqr_inner(a->n, r->n);
+    secp256k1_fe_sqr_inner(r->n, a->n);
 #ifdef VERIFY
     r->magnitude = 1;
     r->normalized = 0;
@@ -257,4 +386,19 @@ static void secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
 #endif
 }
 
+static void secp256k1_fe_cmov(secp256k1_fe_t *r, const secp256k1_fe_t *a, int flag) {
+    uint64_t mask0 = flag + ~((uint64_t)0), mask1 = ~mask0;
+    r->n[0] = (r->n[0] & mask0) | (a->n[0] & mask1);
+    r->n[1] = (r->n[1] & mask0) | (a->n[1] & mask1);
+    r->n[2] = (r->n[2] & mask0) | (a->n[2] & mask1);
+    r->n[3] = (r->n[3] & mask0) | (a->n[3] & mask1);
+    r->n[4] = (r->n[4] & mask0) | (a->n[4] & mask1);
+#ifdef VERIFY
+    if (flag) {
+        r->magnitude = a->magnitude;
+        r->normalized = a->normalized;
+    }
+#endif
+}
+
 #endif
diff --git a/src/secp256k1/src/field_5x52_int128_impl.h b/src/secp256k1/src/field_5x52_int128_impl.h
index c476428672..ec631833cf 100644
--- a/src/secp256k1/src/field_5x52_int128_impl.h
+++ b/src/secp256k1/src/field_5x52_int128_impl.h
@@ -15,7 +15,7 @@
 #define VERIFY_BITS(x, n) do { } while(0)
 #endif
 
-SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint64_t *a, const uint64_t *b, uint64_t *r) {
+SECP256K1_INLINE static void secp256k1_fe_mul_inner(uint64_t *r, const uint64_t *a, const uint64_t * SECP256K1_RESTRICT b) {
     VERIFY_BITS(a[0], 56);
     VERIFY_BITS(a[1], 56);
     VERIFY_BITS(a[2], 56);
@@ -26,6 +26,7 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint64_t *a, const uin
     VERIFY_BITS(b[2], 56);
     VERIFY_BITS(b[3], 56);
     VERIFY_BITS(b[4], 52);
+    VERIFY_CHECK(r != b);
 
     const uint64_t M = 0xFFFFFFFFFFFFFULL, R = 0x1000003D10ULL;
     /*  [... a b c] is a shorthand for ... + a<<104 + b<<52 + c<<0 mod n.
@@ -33,15 +34,17 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint64_t *a, const uin
      *  Note that [x 0 0 0 0 0] = [x*R].
      */
 
+    uint64_t a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4];
+
     __int128 c, d;
 
-    d  = (__int128)a[0] * b[3]
-       + (__int128)a[1] * b[2]
-       + (__int128)a[2] * b[1]
-       + (__int128)a[3] * b[0];
+    d  = (__int128)a0 * b[3]
+       + (__int128)a1 * b[2]
+       + (__int128)a2 * b[1]
+       + (__int128)a3 * b[0];
     VERIFY_BITS(d, 114);
     /* [d 0 0 0] = [p3 0 0 0] */
-    c  = (__int128)a[4] * b[4];
+    c  = (__int128)a4 * b[4];
     VERIFY_BITS(c, 112);
     /* [c 0 0 0 0 d 0 0 0] = [p8 0 0 0 0 p3 0 0 0] */
     d += (c & M) * R; c >>= 52;
@@ -53,11 +56,11 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint64_t *a, const uin
     VERIFY_BITS(d, 63);
     /* [c 0 0 0 0 d t3 0 0 0] = [p8 0 0 0 0 p3 0 0 0] */
 
-    d += (__int128)a[0] * b[4]
-       + (__int128)a[1] * b[3]
-       + (__int128)a[2] * b[2]
-       + (__int128)a[3] * b[1]
-       + (__int128)a[4] * b[0];
+    d += (__int128)a0 * b[4]
+       + (__int128)a1 * b[3]
+       + (__int128)a2 * b[2]
+       + (__int128)a3 * b[1]
+       + (__int128)a4 * b[0];
     VERIFY_BITS(d, 115);
     /* [c 0 0 0 0 d t3 0 0 0] = [p8 0 0 0 p4 p3 0 0 0] */
     d += c * R;
@@ -72,13 +75,13 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint64_t *a, const uin
     VERIFY_BITS(t4, 48);
     /* [d t4+(tx<<48) t3 0 0 0] = [p8 0 0 0 p4 p3 0 0 0] */
 
-    c  = (__int128)a[0] * b[0];
+    c  = (__int128)a0 * b[0];
     VERIFY_BITS(c, 112);
     /* [d t4+(tx<<48) t3 0 0 c] = [p8 0 0 0 p4 p3 0 0 p0] */
-    d += (__int128)a[1] * b[4]
-       + (__int128)a[2] * b[3]
-       + (__int128)a[3] * b[2]
-       + (__int128)a[4] * b[1];
+    d += (__int128)a1 * b[4]
+       + (__int128)a2 * b[3]
+       + (__int128)a3 * b[2]
+       + (__int128)a4 * b[1];
     VERIFY_BITS(d, 115);
     /* [d t4+(tx<<48) t3 0 0 c] = [p8 0 0 p5 p4 p3 0 0 p0] */
     uint64_t u0 = d & M; d >>= 52;
@@ -92,48 +95,43 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint64_t *a, const uin
     c += (__int128)u0 * (R >> 4);
     VERIFY_BITS(c, 115);
     /* [d 0 t4 t3 0 0 c] = [p8 0 0 p5 p4 p3 0 0 p0] */
-    uint64_t t0 = c & M; c >>= 52;
-    VERIFY_BITS(t0, 52);
+    r[0] = c & M; c >>= 52;
+    VERIFY_BITS(r[0], 52);
     VERIFY_BITS(c, 61);
-    /* [d 0 t4 t3 0 c t0] = [p8 0 0 p5 p4 p3 0 0 p0] */
+    /* [d 0 t4 t3 0 c r0] = [p8 0 0 p5 p4 p3 0 0 p0] */
 
-    c += (__int128)a[0] * b[1]
-       + (__int128)a[1] * b[0];
+    c += (__int128)a0 * b[1]
+       + (__int128)a1 * b[0];
     VERIFY_BITS(c, 114);
-    /* [d 0 t4 t3 0 c t0] = [p8 0 0 p5 p4 p3 0 p1 p0] */
-    d += (__int128)a[2] * b[4]
-       + (__int128)a[3] * b[3]
-       + (__int128)a[4] * b[2];
+    /* [d 0 t4 t3 0 c r0] = [p8 0 0 p5 p4 p3 0 p1 p0] */
+    d += (__int128)a2 * b[4]
+       + (__int128)a3 * b[3]
+       + (__int128)a4 * b[2];
     VERIFY_BITS(d, 114);
-    /* [d 0 t4 t3 0 c t0] = [p8 0 p6 p5 p4 p3 0 p1 p0] */
+    /* [d 0 t4 t3 0 c r0] = [p8 0 p6 p5 p4 p3 0 p1 p0] */
     c += (d & M) * R; d >>= 52;
     VERIFY_BITS(c, 115);
     VERIFY_BITS(d, 62);
-    /* [d 0 0 t4 t3 0 c t0] = [p8 0 p6 p5 p4 p3 0 p1 p0] */
-    uint64_t t1 = c & M; c >>= 52;
-    VERIFY_BITS(t1, 52);
+    /* [d 0 0 t4 t3 0 c r0] = [p8 0 p6 p5 p4 p3 0 p1 p0] */
+    r[1] = c & M; c >>= 52;
+    VERIFY_BITS(r[1], 52);
     VERIFY_BITS(c, 63);
-    /* [d 0 0 t4 t3 c t1 t0] = [p8 0 p6 p5 p4 p3 0 p1 p0] */
+    /* [d 0 0 t4 t3 c r1 r0] = [p8 0 p6 p5 p4 p3 0 p1 p0] */
 
-    c += (__int128)a[0] * b[2]
-       + (__int128)a[1] * b[1]
-       + (__int128)a[2] * b[0];
+    c += (__int128)a0 * b[2]
+       + (__int128)a1 * b[1]
+       + (__int128)a2 * b[0];
     VERIFY_BITS(c, 114);
-    /* [d 0 0 t4 t3 c t1 t0] = [p8 0 p6 p5 p4 p3 p2 p1 p0] */
-    d += (__int128)a[3] * b[4]
-       + (__int128)a[4] * b[3];
+    /* [d 0 0 t4 t3 c r1 r0] = [p8 0 p6 p5 p4 p3 p2 p1 p0] */
+    d += (__int128)a3 * b[4]
+       + (__int128)a4 * b[3];
     VERIFY_BITS(d, 114);
-    /* [d 0 0 t4 t3 c t1 t0] = [p8 p7 p6 p5 p4 p3 p2 p1 p0] */
+    /* [d 0 0 t4 t3 c t1 r0] = [p8 p7 p6 p5 p4 p3 p2 p1 p0] */
     c += (d & M) * R; d >>= 52;
     VERIFY_BITS(c, 115);
     VERIFY_BITS(d, 62);
-    /* [d 0 0 0 t4 t3 c t1 t0] = [p8 p7 p6 p5 p4 p3 p2 p1 p0] */
+    /* [d 0 0 0 t4 t3 c r1 r0] = [p8 p7 p6 p5 p4 p3 p2 p1 p0] */
 
-    r[0] = t0;
-    VERIFY_BITS(r[0], 52);
-    /* [d 0 0 0 t4 t3 c t1 r0] = [p8 p7 p6 p5 p4 p3 p2 p1 p0] */
-    r[1] = t1;
-    VERIFY_BITS(r[1], 52);
     /* [d 0 0 0 t4 t3 c r1 r0] = [p8 p7 p6 p5 p4 p3 p2 p1 p0] */
     r[2] = c & M; c >>= 52;
     VERIFY_BITS(r[2], 52);
@@ -154,7 +152,7 @@ SECP256K1_INLINE static void secp256k1_fe_mul_inner(const uint64_t *a, const uin
     /* [r4 r3 r2 r1 r0] = [p8 p7 p6 p5 p4 p3 p2 p1 p0] */
 }
 
-SECP256K1_INLINE static void secp256k1_fe_sqr_inner(const uint64_t *a, uint64_t *r) {
+SECP256K1_INLINE static void secp256k1_fe_sqr_inner(uint64_t *r, const uint64_t *a) {
     VERIFY_BITS(a[0], 56);
     VERIFY_BITS(a[1], 56);
     VERIFY_BITS(a[2], 56);
diff --git a/src/secp256k1/src/field_gmp.h b/src/secp256k1/src/field_gmp.h
deleted file mode 100644
index b390fd9de8..0000000000
--- a/src/secp256k1/src/field_gmp.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/**********************************************************************
- * Copyright (c) 2013, 2014 Pieter Wuille                             *
- * Distributed under the MIT software license, see the accompanying   *
- * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
- **********************************************************************/
-
-#ifndef _SECP256K1_FIELD_REPR_
-#define _SECP256K1_FIELD_REPR_
-
-#include <gmp.h>
-
-#define FIELD_LIMBS ((256 + GMP_NUMB_BITS - 1) / GMP_NUMB_BITS)
-
-typedef struct {
-    mp_limb_t n[FIELD_LIMBS+1];
-} secp256k1_fe_t;
-
-#endif
diff --git a/src/secp256k1/src/field_gmp_impl.h b/src/secp256k1/src/field_gmp_impl.h
deleted file mode 100644
index af4728e5b4..0000000000
--- a/src/secp256k1/src/field_gmp_impl.h
+++ /dev/null
@@ -1,163 +0,0 @@
-/**********************************************************************
- * Copyright (c) 2013, 2014 Pieter Wuille                             *
- * Distributed under the MIT software license, see the accompanying   *
- * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
- **********************************************************************/
-
-#ifndef _SECP256K1_FIELD_REPR_IMPL_H_
-#define _SECP256K1_FIELD_REPR_IMPL_H_
-
-#include <stdio.h>
-#include <string.h>
-#include "num.h"
-#include "field.h"
-
-static mp_limb_t secp256k1_field_p[FIELD_LIMBS];
-static mp_limb_t secp256k1_field_pc[(33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS];
-
-static void secp256k1_fe_inner_start(void) {
-    for (int i=0; i<(33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS; i++)
-        secp256k1_field_pc[i] = 0;
-    secp256k1_field_pc[0] += 0x3D1UL;
-    secp256k1_field_pc[32/GMP_NUMB_BITS] += (((mp_limb_t)1) << (32 % GMP_NUMB_BITS));
-    for (int i=0; i<FIELD_LIMBS; i++) {
-        secp256k1_field_p[i] = 0;
-    }
-    mpn_sub(secp256k1_field_p, secp256k1_field_p, FIELD_LIMBS, secp256k1_field_pc, (33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS);
-}
-
-static void secp256k1_fe_inner_stop(void) {
-}
-
-static void secp256k1_fe_normalize(secp256k1_fe_t *r) {
-    if (r->n[FIELD_LIMBS] != 0) {
-#if (GMP_NUMB_BITS >= 40)
-        mp_limb_t carry = mpn_add_1(r->n, r->n, FIELD_LIMBS, 0x1000003D1ULL * r->n[FIELD_LIMBS]);
-        mpn_add_1(r->n, r->n, FIELD_LIMBS, 0x1000003D1ULL * carry);
-#else
-        mp_limb_t carry = mpn_add_1(r->n, r->n, FIELD_LIMBS, 0x3D1UL * r->n[FIELD_LIMBS]) +
-                          mpn_add_1(r->n+(32/GMP_NUMB_BITS), r->n+(32/GMP_NUMB_BITS), FIELD_LIMBS-(32/GMP_NUMB_BITS), r->n[FIELD_LIMBS] << (32 % GMP_NUMB_BITS));
-        mpn_add_1(r->n, r->n, FIELD_LIMBS, 0x3D1UL * carry);
-        mpn_add_1(r->n+(32/GMP_NUMB_BITS), r->n+(32/GMP_NUMB_BITS), FIELD_LIMBS-(32/GMP_NUMB_BITS), carry << (32%GMP_NUMB_BITS));
-#endif
-        r->n[FIELD_LIMBS] = 0;
-    }
-    if (mpn_cmp(r->n, secp256k1_field_p, FIELD_LIMBS) >= 0)
-        mpn_sub(r->n, r->n, FIELD_LIMBS, secp256k1_field_p, FIELD_LIMBS);
-}
-
-SECP256K1_INLINE static void secp256k1_fe_set_int(secp256k1_fe_t *r, int a) {
-    r->n[0] = a;
-    for (int i=1; i<FIELD_LIMBS+1; i++)
-        r->n[i] = 0;
-}
-
-SECP256K1_INLINE static void secp256k1_fe_clear(secp256k1_fe_t *r) {
-    for (int i=0; i<FIELD_LIMBS+1; i++)
-        r->n[i] = 0;
-}
-
-SECP256K1_INLINE static int secp256k1_fe_is_zero(const secp256k1_fe_t *a) {
-    int ret = 1;
-    for (int i=0; i<FIELD_LIMBS+1; i++)
-        ret &= (a->n[i] == 0);
-    return ret;
-}
-
-SECP256K1_INLINE static int secp256k1_fe_is_odd(const secp256k1_fe_t *a) {
-    return a->n[0] & 1;
-}
-
-SECP256K1_INLINE static int secp256k1_fe_equal(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
-    int ret = 1;
-    for (int i=0; i<FIELD_LIMBS+1; i++)
-        ret &= (a->n[i] == b->n[i]);
-    return ret;
-}
-
-static void secp256k1_fe_set_b32(secp256k1_fe_t *r, const unsigned char *a) {
-    for (int i=0; i<FIELD_LIMBS+1; i++)
-        r->n[i] = 0;
-    for (int i=0; i<256; i++) {
-        int limb = i/GMP_NUMB_BITS;
-        int shift = i%GMP_NUMB_BITS;
-        r->n[limb] |= (mp_limb_t)((a[31-i/8] >> (i%8)) & 0x1) << shift;
-    }
-}
-
-/** Convert a field element to a 32-byte big endian value. Requires the input to be normalized */
-static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe_t *a) {
-    for (int i=0; i<32; i++) {
-        int c = 0;
-        for (int j=0; j<8; j++) {
-            int limb = (8*i+j)/GMP_NUMB_BITS;
-            int shift = (8*i+j)%GMP_NUMB_BITS;
-            c |= ((a->n[limb] >> shift) & 0x1) << j;
-        }
-        r[31-i] = c;
-    }
-}
-
-SECP256K1_INLINE static void secp256k1_fe_negate(secp256k1_fe_t *r, const secp256k1_fe_t *a, int m) {
-    (void)m;
-    *r = *a;
-    secp256k1_fe_normalize(r);
-    for (int i=0; i<FIELD_LIMBS; i++)
-        r->n[i] = ~(r->n[i]);
-#if (GMP_NUMB_BITS >= 33)
-    mpn_sub_1(r->n, r->n, FIELD_LIMBS, 0x1000003D0ULL);
-#else
-    mpn_sub_1(r->n, r->n, FIELD_LIMBS, 0x3D0UL);
-    mpn_sub_1(r->n+(32/GMP_NUMB_BITS), r->n+(32/GMP_NUMB_BITS), FIELD_LIMBS-(32/GMP_NUMB_BITS), 0x1UL << (32%GMP_NUMB_BITS));
-#endif
-}
-
-SECP256K1_INLINE static void secp256k1_fe_mul_int(secp256k1_fe_t *r, int a) {
-    mpn_mul_1(r->n, r->n, FIELD_LIMBS+1, a);
-}
-
-SECP256K1_INLINE static void secp256k1_fe_add(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
-    mpn_add(r->n, r->n, FIELD_LIMBS+1, a->n, FIELD_LIMBS+1);
-}
-
-static void secp256k1_fe_reduce(secp256k1_fe_t *r, mp_limb_t *tmp) {
-    /** <A1 A2 A3 A4> <B1 B2 B3 B4>
-     *        B1 B2 B3 B4
-     *  + C * A1 A2 A3 A4
-     *  +  A1 A2 A3 A4
-     */
-
-#if (GMP_NUMB_BITS >= 33)
-    mp_limb_t o = mpn_addmul_1(tmp, tmp+FIELD_LIMBS, FIELD_LIMBS, 0x1000003D1ULL);
-#else
-    mp_limb_t o = mpn_addmul_1(tmp, tmp+FIELD_LIMBS, FIELD_LIMBS, 0x3D1UL) +
-                  mpn_addmul_1(tmp+(32/GMP_NUMB_BITS), tmp+FIELD_LIMBS, FIELD_LIMBS-(32/GMP_NUMB_BITS), 0x1UL << (32%GMP_NUMB_BITS));
-#endif
-    mp_limb_t q[1+(33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS];
-    q[(33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS] = mpn_mul_1(q, secp256k1_field_pc, (33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS, o);
-#if (GMP_NUMB_BITS <= 32)
-    mp_limb_t o2 = tmp[2*FIELD_LIMBS-(32/GMP_NUMB_BITS)] << (32%GMP_NUMB_BITS);
-    q[(33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS] += mpn_addmul_1(q, secp256k1_field_pc, (33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS, o2);
-#endif
-    r->n[FIELD_LIMBS] = mpn_add(r->n, tmp, FIELD_LIMBS, q, 1+(33+GMP_NUMB_BITS-1)/GMP_NUMB_BITS);
-}
-
-static void secp256k1_fe_mul(secp256k1_fe_t *r, const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
-    secp256k1_fe_t ac = *a;
-    secp256k1_fe_t bc = *b;
-    secp256k1_fe_normalize(&ac);
-    secp256k1_fe_normalize(&bc);
-    mp_limb_t tmp[2*FIELD_LIMBS];
-    mpn_mul_n(tmp, ac.n, bc.n, FIELD_LIMBS);
-    secp256k1_fe_reduce(r, tmp);
-}
-
-static void secp256k1_fe_sqr(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
-    secp256k1_fe_t ac = *a;
-    secp256k1_fe_normalize(&ac);
-    mp_limb_t tmp[2*FIELD_LIMBS];
-    mpn_sqr(tmp, ac.n, FIELD_LIMBS);
-    secp256k1_fe_reduce(r, tmp);
-}
-
-#endif
diff --git a/src/secp256k1/src/field_impl.h b/src/secp256k1/src/field_impl.h
index 3a31e1844e..4e2c24aa15 100644
--- a/src/secp256k1/src/field_impl.h
+++ b/src/secp256k1/src/field_impl.h
@@ -13,9 +13,7 @@
 
 #include "util.h"
 
-#if defined(USE_FIELD_GMP)
-#include "field_gmp_impl.h"
-#elif defined(USE_FIELD_10X26)
+#if defined(USE_FIELD_10X26)
 #include "field_10x26_impl.h"
 #elif defined(USE_FIELD_5X52)
 #include "field_5x52_impl.h"
@@ -41,7 +39,7 @@ static void secp256k1_fe_get_hex(char *r, int *rlen, const secp256k1_fe_t *a) {
     r[64] = 0x00;
 }
 
-static void secp256k1_fe_set_hex(secp256k1_fe_t *r, const char *a, int alen) {
+static int secp256k1_fe_set_hex(secp256k1_fe_t *r, const char *a, int alen) {
     unsigned char tmp[32] = {};
     static const int cvt[256] = {0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
                                  0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
@@ -63,10 +61,17 @@ static void secp256k1_fe_set_hex(secp256k1_fe_t *r, const char *a, int alen) {
         if (alen > i*2)
             tmp[32 - alen/2 + i] = (cvt[(unsigned char)a[2*i]] << 4) + cvt[(unsigned char)a[2*i+1]];
     }
-    secp256k1_fe_set_b32(r, tmp);
+    return secp256k1_fe_set_b32(r, tmp);
 }
 
-static int secp256k1_fe_sqrt(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
+SECP256K1_INLINE static int secp256k1_fe_equal_var(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
+    secp256k1_fe_t na;
+    secp256k1_fe_negate(&na, a, 1);
+    secp256k1_fe_add(&na, b);
+    return secp256k1_fe_normalizes_to_zero_var(&na);
+}
+
+static int secp256k1_fe_sqrt_var(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
 
     /** The binary representation of (p + 1)/4 has 3 blocks of 1s, with lengths in
      *  { 2, 22, 223 }. Use an addition chain to calculate 2^n - 1 for each block:
@@ -130,10 +135,7 @@ static int secp256k1_fe_sqrt(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
     /* Check that a square root was actually calculated */
 
     secp256k1_fe_sqr(&t1, r);
-    secp256k1_fe_negate(&t1, &t1, 1);
-    secp256k1_fe_add(&t1, a);
-    secp256k1_fe_normalize(&t1);
-    return secp256k1_fe_is_zero(&t1);
+    return secp256k1_fe_equal_var(&t1, a);
 }
 
 static void secp256k1_fe_inv(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
@@ -197,7 +199,7 @@ static void secp256k1_fe_inv(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
     for (int j=0; j<3; j++) secp256k1_fe_sqr(&t1, &t1);
     secp256k1_fe_mul(&t1, &t1, &x2);
     for (int j=0; j<2; j++) secp256k1_fe_sqr(&t1, &t1);
-    secp256k1_fe_mul(r, &t1, a);
+    secp256k1_fe_mul(r, a, &t1);
 }
 
 static void secp256k1_fe_inv_var(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
@@ -206,42 +208,18 @@ static void secp256k1_fe_inv_var(secp256k1_fe_t *r, const secp256k1_fe_t *a) {
 #elif defined(USE_FIELD_INV_NUM)
     unsigned char b[32];
     secp256k1_fe_t c = *a;
-    secp256k1_fe_normalize(&c);
+    secp256k1_fe_normalize_var(&c);
     secp256k1_fe_get_b32(b, &c);
     secp256k1_num_t n;
     secp256k1_num_set_bin(&n, b, 32);
     secp256k1_num_mod_inverse(&n, &n, &secp256k1_fe_consts->p);
     secp256k1_num_get_bin(b, 32, &n);
-    secp256k1_fe_set_b32(r, b);
+    VERIFY_CHECK(secp256k1_fe_set_b32(r, b));
 #else
 #error "Please select field inverse implementation"
 #endif
 }
 
-static void secp256k1_fe_inv_all(size_t len, secp256k1_fe_t r[len], const secp256k1_fe_t a[len]) {
-    if (len < 1)
-        return;
-
-    VERIFY_CHECK((r + len <= a) || (a + len <= r));
-
-    r[0] = a[0];
-
-    size_t i = 0;
-    while (++i < len) {
-        secp256k1_fe_mul(&r[i], &r[i - 1], &a[i]);
-    }
-
-    secp256k1_fe_t u; secp256k1_fe_inv(&u, &r[--i]);
-
-    while (i > 0) {
-        int j = i--;
-        secp256k1_fe_mul(&r[j], &r[i], &u);
-        secp256k1_fe_mul(&u, &u, &a[j]);
-    }
-
-    r[0] = u;
-}
-
 static void secp256k1_fe_inv_all_var(size_t len, secp256k1_fe_t r[len], const secp256k1_fe_t a[len]) {
     if (len < 1)
         return;
@@ -267,16 +245,20 @@ static void secp256k1_fe_inv_all_var(size_t len, secp256k1_fe_t r[len], const se
 }
 
 static void secp256k1_fe_start(void) {
+#ifndef USE_NUM_NONE
     static const unsigned char secp256k1_fe_consts_p[] = {
         0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
         0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
         0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
         0xFF,0xFF,0xFF,0xFE,0xFF,0xFF,0xFC,0x2F
     };
+#endif
     if (secp256k1_fe_consts == NULL) {
         secp256k1_fe_inner_start();
-        secp256k1_fe_consts_t *ret = (secp256k1_fe_consts_t*)malloc(sizeof(secp256k1_fe_consts_t));
+        secp256k1_fe_consts_t *ret = (secp256k1_fe_consts_t*)checked_malloc(sizeof(secp256k1_fe_consts_t));
+#ifndef USE_NUM_NONE
         secp256k1_num_set_bin(&ret->p, secp256k1_fe_consts_p, sizeof(secp256k1_fe_consts_p));
+#endif
         secp256k1_fe_consts = ret;
     }
 }
diff --git a/src/secp256k1/src/group.h b/src/secp256k1/src/group.h
index ba02549821..6dea6bb5ac 100644
--- a/src/secp256k1/src/group.h
+++ b/src/secp256k1/src/group.h
@@ -27,14 +27,11 @@ typedef struct {
 
 /** Global constants related to the group */
 typedef struct {
-    secp256k1_num_t order; /* the order of the curve (= order of its generator) */
-    secp256k1_num_t half_order; /* half the order of the curve (= order of its generator) */
     secp256k1_ge_t g; /* the generator point */
 
 #ifdef USE_ENDOMORPHISM
     /* constants related to secp256k1's efficiently computable endomorphism */
     secp256k1_fe_t beta;
-    secp256k1_num_t lambda, a1b2, b1, a2;
 #endif
 } secp256k1_ge_consts_t;
 
@@ -54,13 +51,13 @@ static void secp256k1_ge_set_xy(secp256k1_ge_t *r, const secp256k1_fe_t *x, cons
 
 /** Set a group element (affine) equal to the point with the given X coordinate, and given oddness
  *  for Y. Return value indicates whether the result is valid. */
-static int secp256k1_ge_set_xo(secp256k1_ge_t *r, const secp256k1_fe_t *x, int odd);
+static int secp256k1_ge_set_xo_var(secp256k1_ge_t *r, const secp256k1_fe_t *x, int odd);
 
 /** Check whether a group element is the point at infinity. */
 static int secp256k1_ge_is_infinity(const secp256k1_ge_t *a);
 
 /** Check whether a group element is valid (i.e., on the curve). */
-static int secp256k1_ge_is_valid(const secp256k1_ge_t *a);
+static int secp256k1_ge_is_valid_var(const secp256k1_ge_t *a);
 
 static void secp256k1_ge_neg(secp256k1_ge_t *r, const secp256k1_ge_t *a);
 
@@ -83,8 +80,8 @@ static void secp256k1_gej_set_xy(secp256k1_gej_t *r, const secp256k1_fe_t *x, co
 /** Set a group element (jacobian) equal to another which is given in affine coordinates. */
 static void secp256k1_gej_set_ge(secp256k1_gej_t *r, const secp256k1_ge_t *a);
 
-/** Get the X coordinate of a group element (jacobian). */
-static void secp256k1_gej_get_x_var(secp256k1_fe_t *r, const secp256k1_gej_t *a);
+/** Compare the X coordinate of a group element (jacobian). */
+static int secp256k1_gej_eq_x_var(const secp256k1_fe_t *x, const secp256k1_gej_t *a);
 
 /** Set r equal to the inverse of a (i.e., mirrored around the X axis) */
 static void secp256k1_gej_neg(secp256k1_gej_t *r, const secp256k1_gej_t *a);
@@ -112,10 +109,6 @@ static void secp256k1_gej_get_hex(char *r, int *rlen, const secp256k1_gej_t *a);
 #ifdef USE_ENDOMORPHISM
 /** Set r to be equal to lambda times a, where lambda is chosen in a way such that this is very fast. */
 static void secp256k1_gej_mul_lambda(secp256k1_gej_t *r, const secp256k1_gej_t *a);
-
-/** Find r1 and r2 such that r1+r2*lambda = a, and r1 and r2 are maximum 128 bits long (given that a is
-    not more than 256 bits). */
-static void secp256k1_gej_split_exp_var(secp256k1_num_t *r1, secp256k1_num_t *r2, const secp256k1_num_t *a);
 #endif
 
 /** Clear a secp256k1_gej_t to prevent leaking sensitive information. */
@@ -124,5 +117,4 @@ static void secp256k1_gej_clear(secp256k1_gej_t *r);
 /** Clear a secp256k1_ge_t to prevent leaking sensitive information. */
 static void secp256k1_ge_clear(secp256k1_ge_t *r);
 
-
 #endif
diff --git a/src/secp256k1/src/group_impl.h b/src/secp256k1/src/group_impl.h
index 1edbc6e099..fef06df289 100644
--- a/src/secp256k1/src/group_impl.h
+++ b/src/secp256k1/src/group_impl.h
@@ -28,10 +28,8 @@ static int secp256k1_ge_is_infinity(const secp256k1_ge_t *a) {
 }
 
 static void secp256k1_ge_neg(secp256k1_ge_t *r, const secp256k1_ge_t *a) {
-    r->infinity = a->infinity;
-    r->x = a->x;
-    r->y = a->y;
-    secp256k1_fe_normalize(&r->y);
+    *r = *a;
+    secp256k1_fe_normalize_weak(&r->y);
     secp256k1_fe_negate(&r->y, &r->y, 1);
 }
 
@@ -85,15 +83,16 @@ static void secp256k1_ge_set_gej_var(secp256k1_ge_t *r, secp256k1_gej_t *a) {
 
 static void secp256k1_ge_set_all_gej_var(size_t len, secp256k1_ge_t r[len], const secp256k1_gej_t a[len]) {
     size_t count = 0;
-    secp256k1_fe_t az[len];
+    secp256k1_fe_t *az = checked_malloc(sizeof(secp256k1_fe_t) * len);
     for (size_t i=0; i<len; i++) {
         if (!a[i].infinity) {
             az[count++] = a[i].z;
         }
     }
 
-    secp256k1_fe_t azi[count];
+    secp256k1_fe_t *azi = checked_malloc(sizeof(secp256k1_fe_t) * count);
     secp256k1_fe_inv_all_var(count, azi, az);
+    free(az);
 
     count = 0;
     for (size_t i=0; i<len; i++) {
@@ -106,6 +105,7 @@ static void secp256k1_ge_set_all_gej_var(size_t len, secp256k1_ge_t r[len], cons
             secp256k1_fe_mul(&r[i].y, &a[i].y, &zi3);
         }
     }
+    free(azi);
 }
 
 static void secp256k1_gej_set_infinity(secp256k1_gej_t *r) {
@@ -135,16 +135,16 @@ static void secp256k1_ge_clear(secp256k1_ge_t *r) {
     secp256k1_fe_clear(&r->y);
 }
 
-static int secp256k1_ge_set_xo(secp256k1_ge_t *r, const secp256k1_fe_t *x, int odd) {
+static int secp256k1_ge_set_xo_var(secp256k1_ge_t *r, const secp256k1_fe_t *x, int odd) {
     r->x = *x;
     secp256k1_fe_t x2; secp256k1_fe_sqr(&x2, x);
     secp256k1_fe_t x3; secp256k1_fe_mul(&x3, x, &x2);
     r->infinity = 0;
     secp256k1_fe_t c; secp256k1_fe_set_int(&c, 7);
     secp256k1_fe_add(&c, &x3);
-    if (!secp256k1_fe_sqrt(&r->y, &c))
+    if (!secp256k1_fe_sqrt_var(&r->y, &c))
         return 0;
-    secp256k1_fe_normalize(&r->y);
+    secp256k1_fe_normalize_var(&r->y);
     if (secp256k1_fe_is_odd(&r->y) != odd)
         secp256k1_fe_negate(&r->y, &r->y, 1);
     return 1;
@@ -157,9 +157,11 @@ static void secp256k1_gej_set_ge(secp256k1_gej_t *r, const secp256k1_ge_t *a) {
    secp256k1_fe_set_int(&r->z, 1);
 }
 
-static void secp256k1_gej_get_x_var(secp256k1_fe_t *r, const secp256k1_gej_t *a) {
-    secp256k1_fe_t zi2; secp256k1_fe_inv_var(&zi2, &a->z); secp256k1_fe_sqr(&zi2, &zi2);
-    secp256k1_fe_mul(r, &a->x, &zi2);
+static int secp256k1_gej_eq_x_var(const secp256k1_fe_t *x, const secp256k1_gej_t *a) {
+    VERIFY_CHECK(!a->infinity);
+    secp256k1_fe_t r; secp256k1_fe_sqr(&r, &a->z); secp256k1_fe_mul(&r, &r, x);
+    secp256k1_fe_t r2 = a->x; secp256k1_fe_normalize_weak(&r2);
+    return secp256k1_fe_equal_var(&r, &r2);
 }
 
 static void secp256k1_gej_neg(secp256k1_gej_t *r, const secp256k1_gej_t *a) {
@@ -167,7 +169,7 @@ static void secp256k1_gej_neg(secp256k1_gej_t *r, const secp256k1_gej_t *a) {
     r->x = a->x;
     r->y = a->y;
     r->z = a->z;
-    secp256k1_fe_normalize(&r->y);
+    secp256k1_fe_normalize_weak(&r->y);
     secp256k1_fe_negate(&r->y, &r->y, 1);
 }
 
@@ -175,7 +177,7 @@ static int secp256k1_gej_is_infinity(const secp256k1_gej_t *a) {
     return a->infinity;
 }
 
-static int secp256k1_gej_is_valid(const secp256k1_gej_t *a) {
+static int secp256k1_gej_is_valid_var(const secp256k1_gej_t *a) {
     if (a->infinity)
         return 0;
     /** y^2 = x^3 + 7
@@ -189,12 +191,11 @@ static int secp256k1_gej_is_valid(const secp256k1_gej_t *a) {
     secp256k1_fe_t z6; secp256k1_fe_sqr(&z6, &z2); secp256k1_fe_mul(&z6, &z6, &z2);
     secp256k1_fe_mul_int(&z6, 7);
     secp256k1_fe_add(&x3, &z6);
-    secp256k1_fe_normalize(&y2);
-    secp256k1_fe_normalize(&x3);
-    return secp256k1_fe_equal(&y2, &x3);
+    secp256k1_fe_normalize_weak(&x3);
+    return secp256k1_fe_equal_var(&y2, &x3);
 }
 
-static int secp256k1_ge_is_valid(const secp256k1_ge_t *a) {
+static int secp256k1_ge_is_valid_var(const secp256k1_ge_t *a) {
     if (a->infinity)
         return 0;
     /* y^2 = x^3 + 7 */
@@ -202,35 +203,30 @@ static int secp256k1_ge_is_valid(const secp256k1_ge_t *a) {
     secp256k1_fe_t x3; secp256k1_fe_sqr(&x3, &a->x); secp256k1_fe_mul(&x3, &x3, &a->x);
     secp256k1_fe_t c; secp256k1_fe_set_int(&c, 7);
     secp256k1_fe_add(&x3, &c);
-    secp256k1_fe_normalize(&y2);
-    secp256k1_fe_normalize(&x3);
-    return secp256k1_fe_equal(&y2, &x3);
+    secp256k1_fe_normalize_weak(&x3);
+    return secp256k1_fe_equal_var(&y2, &x3);
 }
 
 static void secp256k1_gej_double_var(secp256k1_gej_t *r, const secp256k1_gej_t *a) {
-    if (a->infinity) {
-        r->infinity = 1;
-        return;
-    }
-
-    secp256k1_fe_t t5 = a->y;
-    secp256k1_fe_normalize(&t5);
-    if (secp256k1_fe_is_zero(&t5)) {
-        r->infinity = 1;
+    // For secp256k1, 2Q is infinity if and only if Q is infinity. This is because if 2Q = infinity,
+    // Q must equal -Q, or that Q.y == -(Q.y), or Q.y is 0. For a point on y^2 = x^3 + 7 to have
+    // y=0, x^3 must be -7 mod p. However, -7 has no cube root mod p.
+    r->infinity = a->infinity;
+    if (r->infinity) {
         return;
     }
 
     secp256k1_fe_t t1,t2,t3,t4;
-    secp256k1_fe_mul(&r->z, &t5, &a->z);
+    secp256k1_fe_mul(&r->z, &a->z, &a->y);
     secp256k1_fe_mul_int(&r->z, 2);       /* Z' = 2*Y*Z (2) */
     secp256k1_fe_sqr(&t1, &a->x);
     secp256k1_fe_mul_int(&t1, 3);         /* T1 = 3*X^2 (3) */
     secp256k1_fe_sqr(&t2, &t1);           /* T2 = 9*X^4 (1) */
-    secp256k1_fe_sqr(&t3, &t5);
+    secp256k1_fe_sqr(&t3, &a->y);
     secp256k1_fe_mul_int(&t3, 2);         /* T3 = 2*Y^2 (2) */
     secp256k1_fe_sqr(&t4, &t3);
     secp256k1_fe_mul_int(&t4, 2);         /* T4 = 8*Y^4 (2) */
-    secp256k1_fe_mul(&t3, &a->x, &t3);    /* T3 = 2*X*Y^2 (1) */
+    secp256k1_fe_mul(&t3, &t3, &a->x);    /* T3 = 2*X*Y^2 (1) */
     r->x = t3;
     secp256k1_fe_mul_int(&r->x, 4);       /* X' = 8*X*Y^2 (4) */
     secp256k1_fe_negate(&r->x, &r->x, 4); /* X' = -8*X*Y^2 (5) */
@@ -241,7 +237,6 @@ static void secp256k1_gej_double_var(secp256k1_gej_t *r, const secp256k1_gej_t *
     secp256k1_fe_mul(&r->y, &t1, &t3);    /* Y' = 36*X^3*Y^2 - 27*X^6 (1) */
     secp256k1_fe_negate(&t2, &t4, 2);     /* T2 = -8*Y^4 (3) */
     secp256k1_fe_add(&r->y, &t2);         /* Y' = 36*X^3*Y^2 - 27*X^6 - 8*Y^4 (4) */
-    r->infinity = 0;
 }
 
 static void secp256k1_gej_add_var(secp256k1_gej_t *r, const secp256k1_gej_t *a, const secp256k1_gej_t *b) {
@@ -260,20 +255,16 @@ static void secp256k1_gej_add_var(secp256k1_gej_t *r, const secp256k1_gej_t *a,
     secp256k1_fe_t u2; secp256k1_fe_mul(&u2, &b->x, &z12);
     secp256k1_fe_t s1; secp256k1_fe_mul(&s1, &a->y, &z22); secp256k1_fe_mul(&s1, &s1, &b->z);
     secp256k1_fe_t s2; secp256k1_fe_mul(&s2, &b->y, &z12); secp256k1_fe_mul(&s2, &s2, &a->z);
-    secp256k1_fe_normalize(&u1);
-    secp256k1_fe_normalize(&u2);
-    if (secp256k1_fe_equal(&u1, &u2)) {
-        secp256k1_fe_normalize(&s1);
-        secp256k1_fe_normalize(&s2);
-        if (secp256k1_fe_equal(&s1, &s2)) {
+    secp256k1_fe_t h; secp256k1_fe_negate(&h, &u1, 1); secp256k1_fe_add(&h, &u2);
+    secp256k1_fe_t i; secp256k1_fe_negate(&i, &s1, 1); secp256k1_fe_add(&i, &s2);
+    if (secp256k1_fe_normalizes_to_zero_var(&h)) {
+        if (secp256k1_fe_normalizes_to_zero_var(&i)) {
             secp256k1_gej_double_var(r, a);
         } else {
             r->infinity = 1;
         }
         return;
     }
-    secp256k1_fe_t h; secp256k1_fe_negate(&h, &u1, 1); secp256k1_fe_add(&h, &u2);
-    secp256k1_fe_t i; secp256k1_fe_negate(&i, &s1, 1); secp256k1_fe_add(&i, &s2);
     secp256k1_fe_t i2; secp256k1_fe_sqr(&i2, &i);
     secp256k1_fe_t h2; secp256k1_fe_sqr(&h2, &h);
     secp256k1_fe_t h3; secp256k1_fe_mul(&h3, &h, &h2);
@@ -299,24 +290,20 @@ static void secp256k1_gej_add_ge_var(secp256k1_gej_t *r, const secp256k1_gej_t *
     }
     r->infinity = 0;
     secp256k1_fe_t z12; secp256k1_fe_sqr(&z12, &a->z);
-    secp256k1_fe_t u1 = a->x; secp256k1_fe_normalize(&u1);
+    secp256k1_fe_t u1 = a->x; secp256k1_fe_normalize_weak(&u1);
     secp256k1_fe_t u2; secp256k1_fe_mul(&u2, &b->x, &z12);
-    secp256k1_fe_t s1 = a->y; secp256k1_fe_normalize(&s1);
+    secp256k1_fe_t s1 = a->y; secp256k1_fe_normalize_weak(&s1);
     secp256k1_fe_t s2; secp256k1_fe_mul(&s2, &b->y, &z12); secp256k1_fe_mul(&s2, &s2, &a->z);
-    secp256k1_fe_normalize(&u1);
-    secp256k1_fe_normalize(&u2);
-    if (secp256k1_fe_equal(&u1, &u2)) {
-        secp256k1_fe_normalize(&s1);
-        secp256k1_fe_normalize(&s2);
-        if (secp256k1_fe_equal(&s1, &s2)) {
+    secp256k1_fe_t h; secp256k1_fe_negate(&h, &u1, 1); secp256k1_fe_add(&h, &u2);
+    secp256k1_fe_t i; secp256k1_fe_negate(&i, &s1, 1); secp256k1_fe_add(&i, &s2);
+    if (secp256k1_fe_normalizes_to_zero_var(&h)) {
+        if (secp256k1_fe_normalizes_to_zero_var(&i)) {
             secp256k1_gej_double_var(r, a);
         } else {
             r->infinity = 1;
         }
         return;
     }
-    secp256k1_fe_t h; secp256k1_fe_negate(&h, &u1, 1); secp256k1_fe_add(&h, &u2);
-    secp256k1_fe_t i; secp256k1_fe_negate(&i, &s1, 1); secp256k1_fe_add(&i, &s2);
     secp256k1_fe_t i2; secp256k1_fe_sqr(&i2, &i);
     secp256k1_fe_t h2; secp256k1_fe_sqr(&h2, &h);
     secp256k1_fe_t h3; secp256k1_fe_mul(&h3, &h, &h2);
@@ -342,7 +329,7 @@ static void secp256k1_gej_add_ge(secp256k1_gej_t *r, const secp256k1_gej_t *a, c
      *
      *  Substituting x_i = Xi / Zi^2 and yi = Yi / Zi^3, for i=1,2,3, gives:
      *    U1 = X1*Z2^2, U2 = X2*Z1^2
-     *    S1 = X1*Z2^3, S2 = X2*Z2^3
+     *    S1 = Y1*Z2^3, S2 = Y2*Z1^3
      *    Z = Z1*Z2
      *    T = U1+U2
      *    M = S1+S2
@@ -355,9 +342,9 @@ static void secp256k1_gej_add_ge(secp256k1_gej_t *r, const secp256k1_gej_t *a, c
      */
 
     secp256k1_fe_t zz; secp256k1_fe_sqr(&zz, &a->z);                /* z = Z1^2 */
-    secp256k1_fe_t u1 = a->x; secp256k1_fe_normalize(&u1);          /* u1 = U1 = X1*Z2^2 (1) */
+    secp256k1_fe_t u1 = a->x; secp256k1_fe_normalize_weak(&u1);     /* u1 = U1 = X1*Z2^2 (1) */
     secp256k1_fe_t u2; secp256k1_fe_mul(&u2, &b->x, &zz);           /* u2 = U2 = X2*Z1^2 (1) */
-    secp256k1_fe_t s1 = a->y; secp256k1_fe_normalize(&s1);          /* s1 = S1 = Y1*Z2^3 (1) */
+    secp256k1_fe_t s1 = a->y; secp256k1_fe_normalize_weak(&s1);     /* s1 = S1 = Y1*Z2^3 (1) */
     secp256k1_fe_t s2; secp256k1_fe_mul(&s2, &b->y, &zz);           /* s2 = Y2*Z2^2 (1) */
     secp256k1_fe_mul(&s2, &s2, &a->z);                              /* s2 = S2 = Y2*Z1^3 (1) */
     secp256k1_fe_t z = a->z;                                        /* z = Z = Z1*Z2 (8) */
@@ -371,8 +358,7 @@ static void secp256k1_gej_add_ge(secp256k1_gej_t *r, const secp256k1_gej_t *a, c
     secp256k1_fe_add(&rr, &t);                                      /* rr = R = T^2-U1*U2 (3) */
     secp256k1_fe_sqr(&t, &rr);                                      /* t = R^2 (1) */
     secp256k1_fe_mul(&r->z, &m, &z);                                /* r->z = M*Z (1) */
-    secp256k1_fe_normalize(&r->z);
-    int infinity = secp256k1_fe_is_zero(&r->z) * (1 - a->infinity);
+    int infinity = secp256k1_fe_normalizes_to_zero(&r->z) * (1 - a->infinity);
     secp256k1_fe_mul_int(&r->z, 2 * (1 - a->infinity)); /* r->z = Z3 = 2*M*Z (2) */
     r->x = t;                                           /* r->x = R^2 (1) */
     secp256k1_fe_negate(&q, &q, 1);                     /* q = -Q (2) */
@@ -384,7 +370,7 @@ static void secp256k1_gej_add_ge(secp256k1_gej_t *r, const secp256k1_gej_t *a, c
     secp256k1_fe_mul(&t, &t, &rr);                      /* t = R*(2*R^2-3*Q) (1) */
     secp256k1_fe_add(&t, &n);                           /* t = R*(2*R^2-3*Q)+M^4 (2) */
     secp256k1_fe_negate(&r->y, &t, 2);                  /* r->y = R*(3*Q-2*R^2)-M^4 (3) */
-    secp256k1_fe_normalize(&r->y);
+    secp256k1_fe_normalize_weak(&r->y);
     secp256k1_fe_mul_int(&r->x, 4 * (1 - a->infinity)); /* r->x = X3 = 4*(R^2-Q) */
     secp256k1_fe_mul_int(&r->y, 4 * (1 - a->infinity)); /* r->y = Y3 = 4*R*(3*Q-2*R^2)-4*M^4 (4) */
 
@@ -414,40 +400,9 @@ static void secp256k1_gej_mul_lambda(secp256k1_gej_t *r, const secp256k1_gej_t *
     *r = *a;
     secp256k1_fe_mul(&r->x, &r->x, beta);
 }
-
-static void secp256k1_gej_split_exp_var(secp256k1_num_t *r1, secp256k1_num_t *r2, const secp256k1_num_t *a) {
-    const secp256k1_ge_consts_t *c = secp256k1_ge_consts;
-    secp256k1_num_t bnc1, bnc2, bnt1, bnt2, bnn2;
-
-    secp256k1_num_copy(&bnn2, &c->order);
-    secp256k1_num_shift(&bnn2, 1);
-
-    secp256k1_num_mul(&bnc1, a, &c->a1b2);
-    secp256k1_num_add(&bnc1, &bnc1, &bnn2);
-    secp256k1_num_div(&bnc1, &bnc1, &c->order);
-
-    secp256k1_num_mul(&bnc2, a, &c->b1);
-    secp256k1_num_add(&bnc2, &bnc2, &bnn2);
-    secp256k1_num_div(&bnc2, &bnc2, &c->order);
-
-    secp256k1_num_mul(&bnt1, &bnc1, &c->a1b2);
-    secp256k1_num_mul(&bnt2, &bnc2, &c->a2);
-    secp256k1_num_add(&bnt1, &bnt1, &bnt2);
-    secp256k1_num_sub(r1, a, &bnt1);
-    secp256k1_num_mul(&bnt1, &bnc1, &c->b1);
-    secp256k1_num_mul(&bnt2, &bnc2, &c->a1b2);
-    secp256k1_num_sub(r2, &bnt1, &bnt2);
-}
 #endif
 
-
 static void secp256k1_ge_start(void) {
-    static const unsigned char secp256k1_ge_consts_order[] = {
-        0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
-        0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,
-        0xBA,0xAE,0xDC,0xE6,0xAF,0x48,0xA0,0x3B,
-        0xBF,0xD2,0x5E,0x8C,0xD0,0x36,0x41,0x41
-    };
     static const unsigned char secp256k1_ge_consts_g_x[] = {
         0x79,0xBE,0x66,0x7E,0xF9,0xDC,0xBB,0xAC,
         0x55,0xA0,0x62,0x95,0xCE,0x87,0x0B,0x07,
@@ -462,47 +417,21 @@ static void secp256k1_ge_start(void) {
     };
 #ifdef USE_ENDOMORPHISM
     /* properties of secp256k1's efficiently computable endomorphism */
-    static const unsigned char secp256k1_ge_consts_lambda[] = {
-        0x53,0x63,0xad,0x4c,0xc0,0x5c,0x30,0xe0,
-        0xa5,0x26,0x1c,0x02,0x88,0x12,0x64,0x5a,
-        0x12,0x2e,0x22,0xea,0x20,0x81,0x66,0x78,
-        0xdf,0x02,0x96,0x7c,0x1b,0x23,0xbd,0x72
-    };
     static const unsigned char secp256k1_ge_consts_beta[] = {
         0x7a,0xe9,0x6a,0x2b,0x65,0x7c,0x07,0x10,
         0x6e,0x64,0x47,0x9e,0xac,0x34,0x34,0xe9,
         0x9c,0xf0,0x49,0x75,0x12,0xf5,0x89,0x95,
         0xc1,0x39,0x6c,0x28,0x71,0x95,0x01,0xee
     };
-    static const unsigned char secp256k1_ge_consts_a1b2[] = {
-        0x30,0x86,0xd2,0x21,0xa7,0xd4,0x6b,0xcd,
-        0xe8,0x6c,0x90,0xe4,0x92,0x84,0xeb,0x15
-    };
-    static const unsigned char secp256k1_ge_consts_b1[] = {
-        0xe4,0x43,0x7e,0xd6,0x01,0x0e,0x88,0x28,
-        0x6f,0x54,0x7f,0xa9,0x0a,0xbf,0xe4,0xc3
-    };
-    static const unsigned char secp256k1_ge_consts_a2[] = {
-        0x01,
-        0x14,0xca,0x50,0xf7,0xa8,0xe2,0xf3,0xf6,
-        0x57,0xc1,0x10,0x8d,0x9d,0x44,0xcf,0xd8
-    };
 #endif
     if (secp256k1_ge_consts == NULL) {
-        secp256k1_ge_consts_t *ret = (secp256k1_ge_consts_t*)malloc(sizeof(secp256k1_ge_consts_t));
-        secp256k1_num_set_bin(&ret->order,  secp256k1_ge_consts_order,  sizeof(secp256k1_ge_consts_order));
-        secp256k1_num_copy(&ret->half_order, &ret->order);
-        secp256k1_num_shift(&ret->half_order, 1);
+        secp256k1_ge_consts_t *ret = (secp256k1_ge_consts_t*)checked_malloc(sizeof(secp256k1_ge_consts_t));
 #ifdef USE_ENDOMORPHISM
-        secp256k1_num_set_bin(&ret->lambda, secp256k1_ge_consts_lambda, sizeof(secp256k1_ge_consts_lambda));
-        secp256k1_num_set_bin(&ret->a1b2,   secp256k1_ge_consts_a1b2,   sizeof(secp256k1_ge_consts_a1b2));
-        secp256k1_num_set_bin(&ret->a2,     secp256k1_ge_consts_a2,     sizeof(secp256k1_ge_consts_a2));
-        secp256k1_num_set_bin(&ret->b1,     secp256k1_ge_consts_b1,     sizeof(secp256k1_ge_consts_b1));
-        secp256k1_fe_set_b32(&ret->beta, secp256k1_ge_consts_beta);
+        VERIFY_CHECK(secp256k1_fe_set_b32(&ret->beta, secp256k1_ge_consts_beta));
 #endif
         secp256k1_fe_t g_x, g_y;
-        secp256k1_fe_set_b32(&g_x, secp256k1_ge_consts_g_x);
-        secp256k1_fe_set_b32(&g_y, secp256k1_ge_consts_g_y);
+        VERIFY_CHECK(secp256k1_fe_set_b32(&g_x, secp256k1_ge_consts_g_x));
+        VERIFY_CHECK(secp256k1_fe_set_b32(&g_y, secp256k1_ge_consts_g_y));
         secp256k1_ge_set_xy(&ret->g, &g_x, &g_y);
         secp256k1_ge_consts = ret;
     }
diff --git a/src/secp256k1/src/hash.h b/src/secp256k1/src/hash.h
new file mode 100644
index 0000000000..d1e65b968a
--- /dev/null
+++ b/src/secp256k1/src/hash.h
@@ -0,0 +1,41 @@
+/**********************************************************************
+ * Copyright (c) 2014 Pieter Wuille                                   *
+ * Distributed under the MIT software license, see the accompanying   *
+ * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
+ **********************************************************************/
+
+#ifndef _SECP256K1_HASH_
+#define _SECP256K1_HASH_
+
+#include <stdlib.h>
+#include <stdint.h>
+
+typedef struct {
+    uint32_t s[32];
+    unsigned char buf[64];
+    size_t bytes;
+} secp256k1_sha256_t;
+
+static void secp256k1_sha256_initialize(secp256k1_sha256_t *hash);
+static void secp256k1_sha256_write(secp256k1_sha256_t *hash, const unsigned char *data, size_t size);
+static void secp256k1_sha256_finalize(secp256k1_sha256_t *hash, unsigned char *out32);
+
+typedef struct {
+    secp256k1_sha256_t inner, outer;
+} secp256k1_hmac_sha256_t;
+
+static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256_t *hash, const unsigned char *key, size_t size);
+static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256_t *hash, const unsigned char *data, size_t size);
+static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256_t *hash, unsigned char *out32);
+
+typedef struct {
+    unsigned char v[32];
+    unsigned char k[32];
+    int retry;
+} secp256k1_rfc6979_hmac_sha256_t;
+
+static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256_t *rng, const unsigned char *key, size_t keylen, const unsigned char *msg, size_t msglen);
+static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256_t *rng, unsigned char *out, size_t outlen);
+static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256_t *rng);
+
+#endif
diff --git a/src/secp256k1/src/hash_impl.h b/src/secp256k1/src/hash_impl.h
new file mode 100644
index 0000000000..f35c5f7a82
--- /dev/null
+++ b/src/secp256k1/src/hash_impl.h
@@ -0,0 +1,291 @@
+/**********************************************************************
+ * Copyright (c) 2014 Pieter Wuille                                   *
+ * Distributed under the MIT software license, see the accompanying   *
+ * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
+ **********************************************************************/
+
+#ifndef _SECP256K1_HASH_IMPL_H_
+#define _SECP256K1_HASH_IMPL_H_
+
+#include "hash.h"
+
+#include <stdlib.h>
+#include <stdint.h>
+
+#define Ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
+#define Maj(x,y,z) (((x) & (y)) | ((z) & ((x) | (y))))
+#define Sigma0(x) (((x) >> 2 | (x) << 30) ^ ((x) >> 13 | (x) << 19) ^ ((x) >> 22 | (x) << 10))
+#define Sigma1(x) (((x) >> 6 | (x) << 26) ^ ((x) >> 11 | (x) << 21) ^ ((x) >> 25 | (x) << 7))
+#define sigma0(x) (((x) >> 7 | (x) << 25) ^ ((x) >> 18 | (x) << 14) ^ ((x) >> 3))
+#define sigma1(x) (((x) >> 17 | (x) << 15) ^ ((x) >> 19 | (x) << 13) ^ ((x) >> 10))
+
+#define Round(a,b,c,d,e,f,g,h,k,w) do { \
+    uint32_t t1 = (h) + Sigma1(e) + Ch((e), (f), (g)) + (k) + (w); \
+    uint32_t t2 = Sigma0(a) + Maj((a), (b), (c)); \
+    (d) += t1; \
+    (h) = t1 + t2; \
+} while(0)
+
+#define ReadBE32(p) (((uint32_t)((p)[0])) << 24 | ((uint32_t)((p)[1])) << 16 | ((uint32_t)((p)[2])) << 8 | ((uint32_t)((p)[3])))
+#define WriteBE32(p, v) do { (p)[0] = (v) >> 24; (p)[1] = (v) >> 16; (p)[2] = (v) >> 8; (p)[3] = (v); } while(0)
+
+static void secp256k1_sha256_initialize(secp256k1_sha256_t *hash) {
+    hash->s[0] = 0x6a09e667ul;
+    hash->s[1] = 0xbb67ae85ul;
+    hash->s[2] = 0x3c6ef372ul;
+    hash->s[3] = 0xa54ff53aul;
+    hash->s[4] = 0x510e527ful;
+    hash->s[5] = 0x9b05688cul;
+    hash->s[6] = 0x1f83d9abul;
+    hash->s[7] = 0x5be0cd19ul;
+    hash->bytes = 0;
+}
+
+/** Perform one SHA-256 transformation, processing a 64-byte chunk. */
+static void secp256k1_sha256_transform(uint32_t* s, const unsigned char* chunk) {
+    uint32_t a = s[0], b = s[1], c = s[2], d = s[3], e = s[4], f = s[5], g = s[6], h = s[7];
+    uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15;
+
+    Round(a, b, c, d, e, f, g, h, 0x428a2f98, w0 = ReadBE32(chunk + 0));
+    Round(h, a, b, c, d, e, f, g, 0x71374491, w1 = ReadBE32(chunk + 4));
+    Round(g, h, a, b, c, d, e, f, 0xb5c0fbcf, w2 = ReadBE32(chunk + 8));
+    Round(f, g, h, a, b, c, d, e, 0xe9b5dba5, w3 = ReadBE32(chunk + 12));
+    Round(e, f, g, h, a, b, c, d, 0x3956c25b, w4 = ReadBE32(chunk + 16));
+    Round(d, e, f, g, h, a, b, c, 0x59f111f1, w5 = ReadBE32(chunk + 20));
+    Round(c, d, e, f, g, h, a, b, 0x923f82a4, w6 = ReadBE32(chunk + 24));
+    Round(b, c, d, e, f, g, h, a, 0xab1c5ed5, w7 = ReadBE32(chunk + 28));
+    Round(a, b, c, d, e, f, g, h, 0xd807aa98, w8 = ReadBE32(chunk + 32));
+    Round(h, a, b, c, d, e, f, g, 0x12835b01, w9 = ReadBE32(chunk + 36));
+    Round(g, h, a, b, c, d, e, f, 0x243185be, w10 = ReadBE32(chunk + 40));
+    Round(f, g, h, a, b, c, d, e, 0x550c7dc3, w11 = ReadBE32(chunk + 44));
+    Round(e, f, g, h, a, b, c, d, 0x72be5d74, w12 = ReadBE32(chunk + 48));
+    Round(d, e, f, g, h, a, b, c, 0x80deb1fe, w13 = ReadBE32(chunk + 52));
+    Round(c, d, e, f, g, h, a, b, 0x9bdc06a7, w14 = ReadBE32(chunk + 56));
+    Round(b, c, d, e, f, g, h, a, 0xc19bf174, w15 = ReadBE32(chunk + 60));
+
+    Round(a, b, c, d, e, f, g, h, 0xe49b69c1, w0 += sigma1(w14) + w9 + sigma0(w1));
+    Round(h, a, b, c, d, e, f, g, 0xefbe4786, w1 += sigma1(w15) + w10 + sigma0(w2));
+    Round(g, h, a, b, c, d, e, f, 0x0fc19dc6, w2 += sigma1(w0) + w11 + sigma0(w3));
+    Round(f, g, h, a, b, c, d, e, 0x240ca1cc, w3 += sigma1(w1) + w12 + sigma0(w4));
+    Round(e, f, g, h, a, b, c, d, 0x2de92c6f, w4 += sigma1(w2) + w13 + sigma0(w5));
+    Round(d, e, f, g, h, a, b, c, 0x4a7484aa, w5 += sigma1(w3) + w14 + sigma0(w6));
+    Round(c, d, e, f, g, h, a, b, 0x5cb0a9dc, w6 += sigma1(w4) + w15 + sigma0(w7));
+    Round(b, c, d, e, f, g, h, a, 0x76f988da, w7 += sigma1(w5) + w0 + sigma0(w8));
+    Round(a, b, c, d, e, f, g, h, 0x983e5152, w8 += sigma1(w6) + w1 + sigma0(w9));
+    Round(h, a, b, c, d, e, f, g, 0xa831c66d, w9 += sigma1(w7) + w2 + sigma0(w10));
+    Round(g, h, a, b, c, d, e, f, 0xb00327c8, w10 += sigma1(w8) + w3 + sigma0(w11));
+    Round(f, g, h, a, b, c, d, e, 0xbf597fc7, w11 += sigma1(w9) + w4 + sigma0(w12));
+    Round(e, f, g, h, a, b, c, d, 0xc6e00bf3, w12 += sigma1(w10) + w5 + sigma0(w13));
+    Round(d, e, f, g, h, a, b, c, 0xd5a79147, w13 += sigma1(w11) + w6 + sigma0(w14));
+    Round(c, d, e, f, g, h, a, b, 0x06ca6351, w14 += sigma1(w12) + w7 + sigma0(w15));
+    Round(b, c, d, e, f, g, h, a, 0x14292967, w15 += sigma1(w13) + w8 + sigma0(w0));
+
+    Round(a, b, c, d, e, f, g, h, 0x27b70a85, w0 += sigma1(w14) + w9 + sigma0(w1));
+    Round(h, a, b, c, d, e, f, g, 0x2e1b2138, w1 += sigma1(w15) + w10 + sigma0(w2));
+    Round(g, h, a, b, c, d, e, f, 0x4d2c6dfc, w2 += sigma1(w0) + w11 + sigma0(w3));
+    Round(f, g, h, a, b, c, d, e, 0x53380d13, w3 += sigma1(w1) + w12 + sigma0(w4));
+    Round(e, f, g, h, a, b, c, d, 0x650a7354, w4 += sigma1(w2) + w13 + sigma0(w5));
+    Round(d, e, f, g, h, a, b, c, 0x766a0abb, w5 += sigma1(w3) + w14 + sigma0(w6));
+    Round(c, d, e, f, g, h, a, b, 0x81c2c92e, w6 += sigma1(w4) + w15 + sigma0(w7));
+    Round(b, c, d, e, f, g, h, a, 0x92722c85, w7 += sigma1(w5) + w0 + sigma0(w8));
+    Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1, w8 += sigma1(w6) + w1 + sigma0(w9));
+    Round(h, a, b, c, d, e, f, g, 0xa81a664b, w9 += sigma1(w7) + w2 + sigma0(w10));
+    Round(g, h, a, b, c, d, e, f, 0xc24b8b70, w10 += sigma1(w8) + w3 + sigma0(w11));
+    Round(f, g, h, a, b, c, d, e, 0xc76c51a3, w11 += sigma1(w9) + w4 + sigma0(w12));
+    Round(e, f, g, h, a, b, c, d, 0xd192e819, w12 += sigma1(w10) + w5 + sigma0(w13));
+    Round(d, e, f, g, h, a, b, c, 0xd6990624, w13 += sigma1(w11) + w6 + sigma0(w14));
+    Round(c, d, e, f, g, h, a, b, 0xf40e3585, w14 += sigma1(w12) + w7 + sigma0(w15));
+    Round(b, c, d, e, f, g, h, a, 0x106aa070, w15 += sigma1(w13) + w8 + sigma0(w0));
+
+    Round(a, b, c, d, e, f, g, h, 0x19a4c116, w0 += sigma1(w14) + w9 + sigma0(w1));
+    Round(h, a, b, c, d, e, f, g, 0x1e376c08, w1 += sigma1(w15) + w10 + sigma0(w2));
+    Round(g, h, a, b, c, d, e, f, 0x2748774c, w2 += sigma1(w0) + w11 + sigma0(w3));
+    Round(f, g, h, a, b, c, d, e, 0x34b0bcb5, w3 += sigma1(w1) + w12 + sigma0(w4));
+    Round(e, f, g, h, a, b, c, d, 0x391c0cb3, w4 += sigma1(w2) + w13 + sigma0(w5));
+    Round(d, e, f, g, h, a, b, c, 0x4ed8aa4a, w5 += sigma1(w3) + w14 + sigma0(w6));
+    Round(c, d, e, f, g, h, a, b, 0x5b9cca4f, w6 += sigma1(w4) + w15 + sigma0(w7));
+    Round(b, c, d, e, f, g, h, a, 0x682e6ff3, w7 += sigma1(w5) + w0 + sigma0(w8));
+    Round(a, b, c, d, e, f, g, h, 0x748f82ee, w8 += sigma1(w6) + w1 + sigma0(w9));
+    Round(h, a, b, c, d, e, f, g, 0x78a5636f, w9 += sigma1(w7) + w2 + sigma0(w10));
+    Round(g, h, a, b, c, d, e, f, 0x84c87814, w10 += sigma1(w8) + w3 + sigma0(w11));
+    Round(f, g, h, a, b, c, d, e, 0x8cc70208, w11 += sigma1(w9) + w4 + sigma0(w12));
+    Round(e, f, g, h, a, b, c, d, 0x90befffa, w12 += sigma1(w10) + w5 + sigma0(w13));
+    Round(d, e, f, g, h, a, b, c, 0xa4506ceb, w13 += sigma1(w11) + w6 + sigma0(w14));
+    Round(c, d, e, f, g, h, a, b, 0xbef9a3f7, w14 + sigma1(w12) + w7 + sigma0(w15));
+    Round(b, c, d, e, f, g, h, a, 0xc67178f2, w15 + sigma1(w13) + w8 + sigma0(w0));
+
+    s[0] += a;
+    s[1] += b;
+    s[2] += c;
+    s[3] += d;
+    s[4] += e;
+    s[5] += f;
+    s[6] += g;
+    s[7] += h;
+}
+
+static void secp256k1_sha256_write(secp256k1_sha256_t *hash, const unsigned char *data, size_t len) {
+    const unsigned char* end = data + len;
+    size_t bufsize = hash->bytes % 64;
+    if (bufsize && bufsize + len >= 64) {
+        // Fill the buffer, and process it.
+        memcpy(hash->buf + bufsize, data, 64 - bufsize);
+        hash->bytes += 64 - bufsize;
+        data += 64 - bufsize;
+        secp256k1_sha256_transform(hash->s, hash->buf);
+        bufsize = 0;
+    }
+    while (end >= data + 64) {
+        // Process full chunks directly from the source.
+        secp256k1_sha256_transform(hash->s, data);
+        hash->bytes += 64;
+        data += 64;
+    }
+    if (end > data) {
+        // Fill the buffer with what remains.
+        memcpy(hash->buf + bufsize, data, end - data);
+        hash->bytes += end - data;
+    }
+}
+
+static void secp256k1_sha256_finalize(secp256k1_sha256_t *hash, unsigned char *out32) {
+    static const unsigned char pad[64] = {0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
+    unsigned char sizedesc[8];
+    WriteBE32(sizedesc, hash->bytes >> 29);
+    WriteBE32(sizedesc + 4, hash->bytes << 3);
+    secp256k1_sha256_write(hash, pad, 1 + ((119 - (hash->bytes % 64)) % 64));
+    secp256k1_sha256_write(hash, sizedesc, 8);
+    WriteBE32(out32, hash->s[0]);
+    hash->s[0] = 0;
+    WriteBE32(out32 + 4, hash->s[1]);
+    hash->s[1] = 0;
+    WriteBE32(out32 + 8, hash->s[2]);
+    hash->s[2] = 0;
+    WriteBE32(out32 + 12, hash->s[3]);
+    hash->s[3] = 0;
+    WriteBE32(out32 + 16, hash->s[4]);
+    hash->s[4] = 0;
+    WriteBE32(out32 + 20, hash->s[5]);
+    hash->s[5] = 0;
+    WriteBE32(out32 + 24, hash->s[6]);
+    hash->s[6] = 0;
+    WriteBE32(out32 + 28, hash->s[7]);
+    hash->s[7] = 0;
+}
+
+static void secp256k1_hmac_sha256_initialize(secp256k1_hmac_sha256_t *hash, const unsigned char *key, size_t keylen) {
+    unsigned char rkey[64];
+    if (keylen <= 64) {
+        memcpy(rkey, key, keylen);
+        memset(rkey + keylen, 0, 64 - keylen);
+    } else {
+        secp256k1_sha256_t sha256;
+        secp256k1_sha256_initialize(&sha256);
+        secp256k1_sha256_write(&sha256, key, keylen);
+        secp256k1_sha256_finalize(&sha256, rkey);
+        memset(rkey + 32, 0, 32);
+    }
+
+    secp256k1_sha256_initialize(&hash->outer);
+    for (int n = 0; n < 64; n++)
+        rkey[n] ^= 0x5c;
+    secp256k1_sha256_write(&hash->outer, rkey, 64);
+
+    secp256k1_sha256_initialize(&hash->inner);
+    for (int n = 0; n < 64; n++)
+        rkey[n] ^= 0x5c ^ 0x36;
+    secp256k1_sha256_write(&hash->inner, rkey, 64);
+    memset(rkey, 0, 64);
+}
+
+static void secp256k1_hmac_sha256_write(secp256k1_hmac_sha256_t *hash, const unsigned char *data, size_t size) {
+    secp256k1_sha256_write(&hash->inner, data, size);
+}
+
+static void secp256k1_hmac_sha256_finalize(secp256k1_hmac_sha256_t *hash, unsigned char *out32) {
+    unsigned char temp[32];
+    secp256k1_sha256_finalize(&hash->inner, temp);
+    secp256k1_sha256_write(&hash->outer, temp, 32);
+    memset(temp, 0, 32);
+    secp256k1_sha256_finalize(&hash->outer, out32);
+}
+
+
+static void secp256k1_rfc6979_hmac_sha256_initialize(secp256k1_rfc6979_hmac_sha256_t *rng, const unsigned char *key, size_t keylen, const unsigned char *msg, size_t msglen) {
+    static const unsigned char zero[1] = {0x00};
+    static const unsigned char one[1] = {0x01};
+
+    memset(rng->v, 0x01, 32);
+    memset(rng->k, 0x00, 32);
+
+    secp256k1_hmac_sha256_t hmac;
+    secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
+    secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
+    secp256k1_hmac_sha256_write(&hmac, zero, 1);
+    secp256k1_hmac_sha256_write(&hmac, key, keylen);
+    secp256k1_hmac_sha256_write(&hmac, msg, msglen);
+    secp256k1_hmac_sha256_finalize(&hmac, rng->k);
+    secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
+    secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
+    secp256k1_hmac_sha256_finalize(&hmac, rng->v);
+
+    secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
+    secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
+    secp256k1_hmac_sha256_write(&hmac, one, 1);
+    secp256k1_hmac_sha256_write(&hmac, key, keylen);
+    secp256k1_hmac_sha256_write(&hmac, msg, msglen);
+    secp256k1_hmac_sha256_finalize(&hmac, rng->k);
+    secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
+    secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
+    secp256k1_hmac_sha256_finalize(&hmac, rng->v);
+    rng->retry = 0;
+}
+
+static void secp256k1_rfc6979_hmac_sha256_generate(secp256k1_rfc6979_hmac_sha256_t *rng, unsigned char *out, size_t outlen) {
+    static const unsigned char zero[1] = {0x00};
+    if (rng->retry) {
+        secp256k1_hmac_sha256_t hmac;
+        secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
+        secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
+        secp256k1_hmac_sha256_write(&hmac, zero, 1);
+        secp256k1_hmac_sha256_finalize(&hmac, rng->k);
+        secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
+        secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
+        secp256k1_hmac_sha256_finalize(&hmac, rng->v);
+    }
+
+    while (outlen > 0) {
+        secp256k1_hmac_sha256_t hmac;
+        secp256k1_hmac_sha256_initialize(&hmac, rng->k, 32);
+        secp256k1_hmac_sha256_write(&hmac, rng->v, 32);
+        secp256k1_hmac_sha256_finalize(&hmac, rng->v);
+        int now = outlen;
+        if (now > 32) {
+            now = 32;
+        }
+        memcpy(out, rng->v, now);
+        out += now;
+        outlen -= now;
+    }
+
+    rng->retry = 1;
+}
+
+static void secp256k1_rfc6979_hmac_sha256_finalize(secp256k1_rfc6979_hmac_sha256_t *rng) {
+    memset(rng->k, 0, 32);
+    memset(rng->v, 0, 32);
+    rng->retry = 0;
+}
+
+
+#undef Round
+#undef sigma0
+#undef sigma1
+#undef Sigma0
+#undef Sigma1
+#undef Ch
+#undef Maj
+#undef ReadBE32
+#undef WriteBE32
+
+#endif
diff --git a/src/secp256k1/src/num.h b/src/secp256k1/src/num.h
index c86f847858..339b6bb6ec 100644
--- a/src/secp256k1/src/num.h
+++ b/src/secp256k1/src/num.h
@@ -7,6 +7,8 @@
 #ifndef _SECP256K1_NUM_
 #define _SECP256K1_NUM_
 
+#ifndef USE_NUM_NONE
+
 #if defined HAVE_CONFIG_H
 #include "libsecp256k1-config.h"
 #endif
@@ -17,9 +19,6 @@
 #error "Please select num implementation"
 #endif
 
-/** Clear a number to prevent the leak of sensitive data. */
-static void secp256k1_num_clear(secp256k1_num_t *r);
-
 /** Copy a number. */
 static void secp256k1_num_copy(secp256k1_num_t *r, const secp256k1_num_t *a);
 
@@ -30,15 +29,9 @@ static void secp256k1_num_get_bin(unsigned char *r, unsigned int rlen, const sec
 /** Set a number to the value of a binary big-endian string. */
 static void secp256k1_num_set_bin(secp256k1_num_t *r, const unsigned char *a, unsigned int alen);
 
-/** Set a number equal to a (signed) integer. */
-static void secp256k1_num_set_int(secp256k1_num_t *r, int a);
-
 /** Compute a modular inverse. The input must be less than the modulus. */
 static void secp256k1_num_mod_inverse(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *m);
 
-/** Multiply two numbers modulo another. */
-static void secp256k1_num_mod_mul(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b, const secp256k1_num_t *m);
-
 /** Compare the absolute value of two numbers. */
 static int secp256k1_num_cmp(const secp256k1_num_t *a, const secp256k1_num_t *b);
 
@@ -54,47 +47,22 @@ static void secp256k1_num_sub(secp256k1_num_t *r, const secp256k1_num_t *a, cons
 /** Multiply two (signed) numbers. */
 static void secp256k1_num_mul(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b);
 
-/** Divide two (signed) numbers. */
-static void secp256k1_num_div(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b);
-
 /** Replace a number by its remainder modulo m. M's sign is ignored. The result is a number between 0 and m-1,
     even if r was negative. */
 static void secp256k1_num_mod(secp256k1_num_t *r, const secp256k1_num_t *m);
 
-/** Calculate the number of bits in (the absolute value of) a number. */
-static int secp256k1_num_bits(const secp256k1_num_t *a);
-
-/** Right-shift the passed number by bits bits, and return those bits. */
-static int secp256k1_num_shift(secp256k1_num_t *r, int bits);
+/** Right-shift the passed number by bits bits. */
+static void secp256k1_num_shift(secp256k1_num_t *r, int bits);
 
 /** Check whether a number is zero. */
 static int secp256k1_num_is_zero(const secp256k1_num_t *a);
 
-/** Check whether a number is odd. */
-static int secp256k1_num_is_odd(const secp256k1_num_t *a);
-
 /** Check whether a number is strictly negative. */
 static int secp256k1_num_is_neg(const secp256k1_num_t *a);
 
-/** Check whether a particular bit is set in a number. */
-static int secp256k1_num_get_bit(const secp256k1_num_t *a, int pos);
-
-/** Increase a number by 1. */
-static void secp256k1_num_inc(secp256k1_num_t *r);
-
-/** Set a number equal to the value of a hex string (unsigned). */
-static void secp256k1_num_set_hex(secp256k1_num_t *r, const char *a, int alen);
-
-/** Convert (the absolute value of) a number to a hexadecimal string. */
-static void secp256k1_num_get_hex(char *r, int rlen, const secp256k1_num_t *a);
-
-/** Split a number into a low and high part. */
-static void secp256k1_num_split(secp256k1_num_t *rl, secp256k1_num_t *rh, const secp256k1_num_t *a, int bits);
-
 /** Change a number's sign. */
 static void secp256k1_num_negate(secp256k1_num_t *r);
 
-/** Get a bunch of bits from a number. */
-static int secp256k1_num_get_bits(const secp256k1_num_t *a, int offset, int count);
+#endif
 
 #endif
diff --git a/src/secp256k1/src/num_gmp_impl.h b/src/secp256k1/src/num_gmp_impl.h
index e45a59e0cd..19d474e59f 100644
--- a/src/secp256k1/src/num_gmp_impl.h
+++ b/src/secp256k1/src/num_gmp_impl.h
@@ -22,35 +22,10 @@ static void secp256k1_num_sanity(const secp256k1_num_t *a) {
 #define secp256k1_num_sanity(a) do { } while(0)
 #endif
 
-static void secp256k1_num_init(secp256k1_num_t *r) {
-    r->neg = 0;
-    r->limbs = 1;
-    r->data[0] = 0;
-}
-
-static void secp256k1_num_clear(secp256k1_num_t *r) {
-    memset(r, 0, sizeof(*r));
-}
-
-static void secp256k1_num_free(secp256k1_num_t *r) {
-    (void)r;
-}
-
 static void secp256k1_num_copy(secp256k1_num_t *r, const secp256k1_num_t *a) {
     *r = *a;
 }
 
-static int secp256k1_num_bits(const secp256k1_num_t *a) {
-    int ret=(a->limbs-1)*GMP_NUMB_BITS;
-    mp_limb_t x=a->data[a->limbs-1];
-    while (x) {
-        x >>= 1;
-        ret++;
-    }
-    return ret;
-}
-
-
 static void secp256k1_num_get_bin(unsigned char *r, unsigned int rlen, const secp256k1_num_t *a) {
     unsigned char tmp[65];
     int len = 0;
@@ -71,18 +46,16 @@ static void secp256k1_num_set_bin(secp256k1_num_t *r, const unsigned char *a, un
     VERIFY_CHECK(alen > 0);
     VERIFY_CHECK(alen <= 64);
     int len = mpn_set_str(r->data, a, alen, 256);
+    if (len == 0) {
+        r->data[0] = 0;
+        len = 1;
+    }
     VERIFY_CHECK(len <= NUM_LIMBS*2);
     r->limbs = len;
     r->neg = 0;
     while (r->limbs > 1 && r->data[r->limbs-1]==0) r->limbs--;
 }
 
-static void secp256k1_num_set_int(secp256k1_num_t *r, int a) {
-    r->limbs = 1;
-    r->neg = (a < 0);
-    r->data[0] = (a < 0) ? -a : a;
-}
-
 static void secp256k1_num_add_abs(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b) {
     mp_limb_t c = mpn_add(r->data, a->data, a->limbs, b->data, b->limbs);
     r->limbs = a->limbs;
@@ -161,10 +134,6 @@ static int secp256k1_num_is_zero(const secp256k1_num_t *a) {
     return (a->limbs == 1 && a->data[0] == 0);
 }
 
-static int secp256k1_num_is_odd(const secp256k1_num_t *a) {
-    return a->data[0] & 1;
-}
-
 static int secp256k1_num_is_neg(const secp256k1_num_t *a) {
     return (a->limbs > 1 || a->data[0] != 0) && a->neg;
 }
@@ -237,140 +206,27 @@ static void secp256k1_num_mul(secp256k1_num_t *r, const secp256k1_num_t *a, cons
     memset(tmp, 0, sizeof(tmp));
 }
 
-static void secp256k1_num_div(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b) {
-    secp256k1_num_sanity(a);
-    secp256k1_num_sanity(b);
-    if (b->limbs > a->limbs) {
-        r->limbs = 1;
-        r->data[0] = 0;
-        r->neg = 0;
-        return;
-    }
-
-    mp_limb_t quo[2*NUM_LIMBS+1];
-    mp_limb_t rem[2*NUM_LIMBS+1];
-    mpn_tdiv_qr(quo, rem, 0, a->data, a->limbs, b->data, b->limbs);
-    mpn_copyi(r->data, quo, a->limbs - b->limbs + 1);
-    r->limbs = a->limbs - b->limbs + 1;
-    while (r->limbs > 1 && r->data[r->limbs - 1]==0) r->limbs--;
-    r->neg = a->neg ^ b->neg;
-}
-
-static void secp256k1_num_mod_mul(secp256k1_num_t *r, const secp256k1_num_t *a, const secp256k1_num_t *b, const secp256k1_num_t *m) {
-    secp256k1_num_mul(r, a, b);
-    secp256k1_num_mod(r, m);
-}
-
-
-static int secp256k1_num_shift(secp256k1_num_t *r, int bits) {
-    VERIFY_CHECK(bits <= GMP_NUMB_BITS);
-    mp_limb_t ret = mpn_rshift(r->data, r->data, r->limbs, bits);
-    if (r->limbs>1 && r->data[r->limbs-1]==0) r->limbs--;
-    ret >>= (GMP_NUMB_BITS - bits);
-    return ret;
-}
-
-static int secp256k1_num_get_bit(const secp256k1_num_t *a, int pos) {
-    return (a->limbs*GMP_NUMB_BITS > pos) && ((a->data[pos/GMP_NUMB_BITS] >> (pos % GMP_NUMB_BITS)) & 1);
-}
-
-static void secp256k1_num_inc(secp256k1_num_t *r) {
-    mp_limb_t ret = mpn_add_1(r->data, r->data, r->limbs, (mp_limb_t)1);
-    if (ret) {
-        VERIFY_CHECK(r->limbs < 2*NUM_LIMBS);
-        r->data[r->limbs++] = ret;
-    }
-}
-
-static void secp256k1_num_set_hex(secp256k1_num_t *r, const char *a, int alen) {
-    static const unsigned char cvt[256] = {
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 1, 2, 3, 4, 5, 6,7,8,9,0,0,0,0,0,0,
-        0,10,11,12,13,14,15,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0,10,11,12,13,14,15,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0,
-        0, 0, 0, 0, 0, 0, 0,0,0,0,0,0,0,0,0,0
-    };
-    unsigned char num[257] = {};
-    for (int i=0; i<alen; i++) {
-        num[i] = cvt[(unsigned char)a[i]];
-    }
-    r->limbs = mpn_set_str(r->data, num, alen, 16);
-    r->neg = 0;
-    while (r->limbs > 1 && r->data[r->limbs-1] == 0) r->limbs--;
-}
-
-static void secp256k1_num_get_hex(char *r, int rlen, const secp256k1_num_t *a) {
-    static const unsigned char cvt[16] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
-    unsigned char *tmp = malloc(257);
-    mp_size_t len = mpn_get_str(tmp, 16, (mp_limb_t*)a->data, a->limbs);
-    VERIFY_CHECK(len <= rlen);
-    for (int i=0; i<len; i++) {
-        VERIFY_CHECK(rlen-len+i >= 0);
-        VERIFY_CHECK(rlen-len+i < rlen);
-        VERIFY_CHECK(tmp[i] < 16);
-        r[rlen-len+i] = cvt[tmp[i]];
-    }
-    for (int i=0; i<rlen-len; i++) {
-        VERIFY_CHECK(i >= 0);
-        VERIFY_CHECK(i < rlen);
-        r[i] = cvt[0];
-    }
-    free(tmp);
-}
-
-static void secp256k1_num_split(secp256k1_num_t *rl, secp256k1_num_t *rh, const secp256k1_num_t *a, int bits) {
-    VERIFY_CHECK(bits > 0);
-    rh->neg = a->neg;
-    if (bits >= a->limbs * GMP_NUMB_BITS) {
-        *rl = *a;
-        rh->limbs = 1;
-        rh->data[0] = 0;
-        return;
-    }
-    rl->limbs = 0;
-    rl->neg = a->neg;
-    int left = bits;
-    while (left >= GMP_NUMB_BITS) {
-        rl->data[rl->limbs] = a->data[rl->limbs];
-        rl->limbs++;
-        left -= GMP_NUMB_BITS;
-    }
-    if (left == 0) {
-        mpn_copyi(rh->data, a->data + rl->limbs, a->limbs - rl->limbs);
-        rh->limbs = a->limbs - rl->limbs;
-    } else {
-        mpn_rshift(rh->data, a->data + rl->limbs, a->limbs - rl->limbs, left);
-        rh->limbs = a->limbs - rl->limbs;
-        while (rh->limbs>1 && rh->data[rh->limbs-1]==0) rh->limbs--;
-    }
-    if (left > 0) {
-        rl->data[rl->limbs] = a->data[rl->limbs] & ((((mp_limb_t)1) << left) - 1);
-        rl->limbs++;
+static void secp256k1_num_shift(secp256k1_num_t *r, int bits) {
+    if (bits % GMP_NUMB_BITS) {
+        // Shift within limbs.
+        mpn_rshift(r->data, r->data, r->limbs, bits % GMP_NUMB_BITS);
+    }
+    if (bits >= GMP_NUMB_BITS) {
+        // Shift full limbs.
+        for (int i = 0; i < r->limbs; i++) {
+            int index = i + (bits / GMP_NUMB_BITS);
+            if (index < r->limbs && index < 2*NUM_LIMBS) {
+                r->data[i] = r->data[index];
+            } else {
+                r->data[i] = 0;
+            }
+        }
     }
-    while (rl->limbs>1 && rl->data[rl->limbs-1]==0) rl->limbs--;
+    while (r->limbs>1 && r->data[r->limbs-1]==0) r->limbs--;
 }
 
 static void secp256k1_num_negate(secp256k1_num_t *r) {
     r->neg ^= 1;
 }
 
-static int secp256k1_num_get_bits(const secp256k1_num_t *a, int offset, int count) {
-    int ret = 0;
-    for (int i = 0; i < count; i++) {
-        ret |= ((a->data[(offset + i) / GMP_NUMB_BITS] >> ((offset + i) % GMP_NUMB_BITS)) & 1) << i;
-    }
-    return ret;
-}
-
 #endif
diff --git a/src/secp256k1/src/num_impl.h b/src/secp256k1/src/num_impl.h
index f73d3ceea8..0b0e3a072a 100644
--- a/src/secp256k1/src/num_impl.h
+++ b/src/secp256k1/src/num_impl.h
@@ -15,6 +15,8 @@
 
 #if defined(USE_NUM_GMP)
 #include "num_gmp_impl.h"
+#elif defined(USE_NUM_NONE)
+/* Nothing. */
 #else
 #error "Please select num implementation"
 #endif
diff --git a/src/secp256k1/src/scalar.h b/src/secp256k1/src/scalar.h
index 3baacb3721..2f5ba0d447 100644
--- a/src/secp256k1/src/scalar.h
+++ b/src/secp256k1/src/scalar.h
@@ -21,20 +21,32 @@
 #error "Please select scalar implementation"
 #endif
 
+static void secp256k1_scalar_start(void);
+static void secp256k1_scalar_stop(void);
+
 /** Clear a scalar to prevent the leak of sensitive data. */
 static void secp256k1_scalar_clear(secp256k1_scalar_t *r);
 
-/** Access bits from a scalar. */
-static int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, int offset, int count);
+/** Access bits from a scalar. All requested bits must belong to the same 32-bit limb. */
+static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count);
+
+/** Access bits from a scalar. Not constant time. */
+static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count);
 
 /** Set a scalar from a big endian byte array. */
 static void secp256k1_scalar_set_b32(secp256k1_scalar_t *r, const unsigned char *bin, int *overflow);
 
+/** Set a scalar to an unsigned integer. */
+static void secp256k1_scalar_set_int(secp256k1_scalar_t *r, unsigned int v);
+
 /** Convert a scalar to a byte array. */
 static void secp256k1_scalar_get_b32(unsigned char *bin, const secp256k1_scalar_t* a);
 
-/** Add two scalars together (modulo the group order). */
-static void secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b);
+/** Add two scalars together (modulo the group order). Returns whether it overflowed. */
+static int secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b);
+
+/** Add a power of two to a scalar. The result is not allowed to overflow. */
+static void secp256k1_scalar_add_bit(secp256k1_scalar_t *r, unsigned int bit);
 
 /** Multiply two scalars (modulo the group order). */
 static void secp256k1_scalar_mul(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b);
@@ -45,6 +57,9 @@ static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t
 /** Compute the inverse of a scalar (modulo the group order). */
 static void secp256k1_scalar_inverse(secp256k1_scalar_t *r, const secp256k1_scalar_t *a);
 
+/** Compute the inverse of a scalar (modulo the group order), without constant-time guarantee. */
+static void secp256k1_scalar_inverse_var(secp256k1_scalar_t *r, const secp256k1_scalar_t *a);
+
 /** Compute the complement of a scalar (modulo the group order). */
 static void secp256k1_scalar_negate(secp256k1_scalar_t *r, const secp256k1_scalar_t *a);
 
@@ -57,7 +72,25 @@ static int secp256k1_scalar_is_one(const secp256k1_scalar_t *a);
 /** Check whether a scalar is higher than the group order divided by 2. */
 static int secp256k1_scalar_is_high(const secp256k1_scalar_t *a);
 
+#ifndef USE_NUM_NONE
 /** Convert a scalar to a number. */
 static void secp256k1_scalar_get_num(secp256k1_num_t *r, const secp256k1_scalar_t *a);
 
+/** Get the order of the group as a number. */
+static void secp256k1_scalar_order_get_num(secp256k1_num_t *r);
+#endif
+
+/** Compare two scalars. */
+static int secp256k1_scalar_eq(const secp256k1_scalar_t *a, const secp256k1_scalar_t *b);
+
+static void secp256k1_scalar_split_128(secp256k1_scalar_t *r1, secp256k1_scalar_t *r2, const secp256k1_scalar_t *a);
+
+#ifdef USE_ENDOMORPHISM
+/** Find r1 and r2 such that r1+r2*lambda = a, and r1 and r2 are maximum 128 bits long (see secp256k1_gej_mul_lambda). */
+static void secp256k1_scalar_split_lambda_var(secp256k1_scalar_t *r1, secp256k1_scalar_t *r2, const secp256k1_scalar_t *a);
+#endif
+
+/** Multiply a and b (without taking the modulus!), divide by 2**shift, and round to the nearest integer. Shift must be at least 256. */
+static void secp256k1_scalar_mul_shift_var(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b, unsigned int shift);
+
 #endif
diff --git a/src/secp256k1/src/scalar_4x64_impl.h b/src/secp256k1/src/scalar_4x64_impl.h
index f78718234f..d144775220 100644
--- a/src/secp256k1/src/scalar_4x64_impl.h
+++ b/src/secp256k1/src/scalar_4x64_impl.h
@@ -33,9 +33,27 @@ SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar_t *r) {
     r->d[3] = 0;
 }
 
-SECP256K1_INLINE static int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, int offset, int count) {
-    VERIFY_CHECK((offset + count - 1) / 64 == offset / 64);
-    return (a->d[offset / 64] >> (offset % 64)) & ((((uint64_t)1) << count) - 1);
+SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar_t *r, unsigned int v) {
+    r->d[0] = v;
+    r->d[1] = 0;
+    r->d[2] = 0;
+    r->d[3] = 0;
+}
+
+SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count) {
+    VERIFY_CHECK((offset + count - 1) >> 6 == offset >> 6);
+    return (a->d[offset >> 6] >> (offset & 0x3F)) & ((((uint64_t)1) << count) - 1);
+}
+
+SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count) {
+    VERIFY_CHECK(count < 32);
+    VERIFY_CHECK(offset + count <= 256);
+    if ((offset + count - 1) >> 6 == offset >> 6) {
+        return secp256k1_scalar_get_bits(a, offset, count);
+    } else {
+        VERIFY_CHECK((offset >> 6) + 1 < 4);
+        return ((a->d[offset >> 6] >> (offset & 0x3F)) | (a->d[(offset >> 6) + 1] << (64 - (offset & 0x3F)))) & ((((uint64_t)1) << count) - 1);
+    }
 }
 
 SECP256K1_INLINE static int secp256k1_scalar_check_overflow(const secp256k1_scalar_t *a) {
@@ -63,7 +81,7 @@ SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar_t *r, unsig
     return overflow;
 }
 
-static void secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+static int secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
     uint128_t t = (uint128_t)a->d[0] + b->d[0];
     r->d[0] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;
     t += (uint128_t)a->d[1] + b->d[1];
@@ -72,7 +90,26 @@ static void secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t
     r->d[2] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;
     t += (uint128_t)a->d[3] + b->d[3];
     r->d[3] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;
-    secp256k1_scalar_reduce(r, t + secp256k1_scalar_check_overflow(r));
+    int overflow = t + secp256k1_scalar_check_overflow(r);
+    VERIFY_CHECK(overflow == 0 || overflow == 1);
+    secp256k1_scalar_reduce(r, overflow);
+    return overflow;
+}
+
+static void secp256k1_scalar_add_bit(secp256k1_scalar_t *r, unsigned int bit) {
+    VERIFY_CHECK(bit < 256);
+    uint128_t t = (uint128_t)r->d[0] + (((uint64_t)((bit >> 6) == 0)) << (bit & 0x3F));
+    r->d[0] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;
+    t += (uint128_t)r->d[1] + (((uint64_t)((bit >> 6) == 1)) << (bit & 0x3F));
+    r->d[1] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;
+    t += (uint128_t)r->d[2] + (((uint64_t)((bit >> 6) == 2)) << (bit & 0x3F));
+    r->d[2] = t & 0xFFFFFFFFFFFFFFFFULL; t >>= 64;
+    t += (uint128_t)r->d[3] + (((uint64_t)((bit >> 6) == 3)) << (bit & 0x3F));
+    r->d[3] = t & 0xFFFFFFFFFFFFFFFFULL;
+#ifdef VERIFY
+    VERIFY_CHECK((t >> 64) == 0);
+    VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0);
+#endif
 }
 
 static void secp256k1_scalar_set_b32(secp256k1_scalar_t *r, const unsigned char *b32, int *overflow) {
@@ -280,13 +317,11 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar_t *r, const uint64_t *l
     secp256k1_scalar_reduce(r, c + secp256k1_scalar_check_overflow(r));
 }
 
-static void secp256k1_scalar_mul(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+static void secp256k1_scalar_mul_512(uint64_t l[8], const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
     /* 160 bit accumulator. */
     uint64_t c0 = 0, c1 = 0;
     uint32_t c2 = 0;
 
-    uint64_t l[8];
-
     /* l[0..7] = a[0..3] * b[0..3]. */
     muladd_fast(a->d[0], b->d[0]);
     extract_fast(l[0]);
@@ -313,17 +348,13 @@ static void secp256k1_scalar_mul(secp256k1_scalar_t *r, const secp256k1_scalar_t
     extract_fast(l[6]);
     VERIFY_CHECK(c1 <= 0);
     l[7] = c0;
-
-    secp256k1_scalar_reduce_512(r, l);
 }
 
-static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t *a) {
+static void secp256k1_scalar_sqr_512(uint64_t l[8], const secp256k1_scalar_t *a) {
     /* 160 bit accumulator. */
     uint64_t c0 = 0, c1 = 0;
     uint32_t c2 = 0;
 
-    uint64_t l[8];
-
     /* l[0..7] = a[0..3] * b[0..3]. */
     muladd_fast(a->d[0], a->d[0]);
     extract_fast(l[0]);
@@ -344,8 +375,6 @@ static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t
     extract_fast(l[6]);
     VERIFY_CHECK(c1 == 0);
     l[7] = c0;
-
-    secp256k1_scalar_reduce_512(r, l);
 }
 
 #undef sumadd
@@ -356,4 +385,47 @@ static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t
 #undef extract
 #undef extract_fast
 
+static void secp256k1_scalar_mul(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+    uint64_t l[8];
+    secp256k1_scalar_mul_512(l, a, b);
+    secp256k1_scalar_reduce_512(r, l);
+}
+
+static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t *a) {
+    uint64_t l[8];
+    secp256k1_scalar_sqr_512(l, a);
+    secp256k1_scalar_reduce_512(r, l);
+}
+
+static void secp256k1_scalar_split_128(secp256k1_scalar_t *r1, secp256k1_scalar_t *r2, const secp256k1_scalar_t *a) {
+    r1->d[0] = a->d[0];
+    r1->d[1] = a->d[1];
+    r1->d[2] = 0;
+    r1->d[3] = 0;
+    r2->d[0] = a->d[2];
+    r2->d[1] = a->d[3];
+    r2->d[2] = 0;
+    r2->d[3] = 0;
+}
+
+SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+    return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3])) == 0;
+}
+
+SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b, unsigned int shift) {
+    VERIFY_CHECK(shift >= 256);
+    uint64_t l[8];
+    secp256k1_scalar_mul_512(l, a, b);
+    unsigned int shiftlimbs = shift >> 6;
+    unsigned int shiftlow = shift & 0x3F;
+    unsigned int shifthigh = 64 - shiftlow;
+    r->d[0] = shift < 512 ? (l[0 + shiftlimbs] >> shiftlow | (shift < 448 && shiftlow ? (l[1 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[1] = shift < 448 ? (l[1 + shiftlimbs] >> shiftlow | (shift < 384 && shiftlow ? (l[2 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[2] = shift < 384 ? (l[2 + shiftlimbs] >> shiftlow | (shift < 320 && shiftlow ? (l[3 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[3] = shift < 320 ? (l[3 + shiftlimbs] >> shiftlow) : 0;
+    if ((l[(shift - 1) >> 6] >> ((shift - 1) & 0x3f)) & 1) {
+        secp256k1_scalar_add_bit(r, 0);
+    }
+}
+
 #endif
diff --git a/src/secp256k1/src/scalar_8x32_impl.h b/src/secp256k1/src/scalar_8x32_impl.h
index e58be1365f..915cbcddbe 100644
--- a/src/secp256k1/src/scalar_8x32_impl.h
+++ b/src/secp256k1/src/scalar_8x32_impl.h
@@ -45,9 +45,31 @@ SECP256K1_INLINE static void secp256k1_scalar_clear(secp256k1_scalar_t *r) {
     r->d[7] = 0;
 }
 
-SECP256K1_INLINE static int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, int offset, int count) {
-    VERIFY_CHECK((offset + count - 1) / 32 == offset / 32);
-    return (a->d[offset / 32] >> (offset % 32)) & ((1 << count) - 1);
+SECP256K1_INLINE static void secp256k1_scalar_set_int(secp256k1_scalar_t *r, unsigned int v) {
+    r->d[0] = v;
+    r->d[1] = 0;
+    r->d[2] = 0;
+    r->d[3] = 0;
+    r->d[4] = 0;
+    r->d[5] = 0;
+    r->d[6] = 0;
+    r->d[7] = 0;
+}
+
+SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count) {
+    VERIFY_CHECK((offset + count - 1) >> 5 == offset >> 5);
+    return (a->d[offset >> 5] >> (offset & 0x1F)) & ((1 << count) - 1);
+}
+
+SECP256K1_INLINE static unsigned int secp256k1_scalar_get_bits_var(const secp256k1_scalar_t *a, unsigned int offset, unsigned int count) {
+    VERIFY_CHECK(count < 32);
+    VERIFY_CHECK(offset + count <= 256);
+    if ((offset + count - 1) >> 5 == offset >> 5) {
+        return secp256k1_scalar_get_bits(a, offset, count);
+    } else {
+        VERIFY_CHECK((offset >> 5) + 1 < 8);
+        return ((a->d[offset >> 5] >> (offset & 0x1F)) | (a->d[(offset >> 5) + 1] << (32 - (offset & 0x1F)))) & ((((uint32_t)1) << count) - 1);
+    }
 }
 
 SECP256K1_INLINE static int secp256k1_scalar_check_overflow(const secp256k1_scalar_t *a) {
@@ -89,7 +111,7 @@ SECP256K1_INLINE static int secp256k1_scalar_reduce(secp256k1_scalar_t *r, uint3
     return overflow;
 }
 
-static void secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+static int secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
     uint64_t t = (uint64_t)a->d[0] + b->d[0];
     r->d[0] = t & 0xFFFFFFFFULL; t >>= 32;
     t += (uint64_t)a->d[1] + b->d[1];
@@ -106,7 +128,34 @@ static void secp256k1_scalar_add(secp256k1_scalar_t *r, const secp256k1_scalar_t
     r->d[6] = t & 0xFFFFFFFFULL; t >>= 32;
     t += (uint64_t)a->d[7] + b->d[7];
     r->d[7] = t & 0xFFFFFFFFULL; t >>= 32;
-    secp256k1_scalar_reduce(r, t + secp256k1_scalar_check_overflow(r));
+    int overflow = t + secp256k1_scalar_check_overflow(r);
+    VERIFY_CHECK(overflow == 0 || overflow == 1);
+    secp256k1_scalar_reduce(r, overflow);
+    return overflow;
+}
+
+static void secp256k1_scalar_add_bit(secp256k1_scalar_t *r, unsigned int bit) {
+    VERIFY_CHECK(bit < 256);
+    uint64_t t = (uint64_t)r->d[0] + (((uint32_t)((bit >> 5) == 0)) << (bit & 0x1F));
+    r->d[0] = t & 0xFFFFFFFFULL; t >>= 32;
+    t += (uint64_t)r->d[1] + (((uint32_t)((bit >> 5) == 1)) << (bit & 0x1F));
+    r->d[1] = t & 0xFFFFFFFFULL; t >>= 32;
+    t += (uint64_t)r->d[2] + (((uint32_t)((bit >> 5) == 2)) << (bit & 0x1F));
+    r->d[2] = t & 0xFFFFFFFFULL; t >>= 32;
+    t += (uint64_t)r->d[3] + (((uint32_t)((bit >> 5) == 3)) << (bit & 0x1F));
+    r->d[3] = t & 0xFFFFFFFFULL; t >>= 32;
+    t += (uint64_t)r->d[4] + (((uint32_t)((bit >> 5) == 4)) << (bit & 0x1F));
+    r->d[4] = t & 0xFFFFFFFFULL; t >>= 32;
+    t += (uint64_t)r->d[5] + (((uint32_t)((bit >> 5) == 5)) << (bit & 0x1F));
+    r->d[5] = t & 0xFFFFFFFFULL; t >>= 32;
+    t += (uint64_t)r->d[6] + (((uint32_t)((bit >> 5) == 6)) << (bit & 0x1F));
+    r->d[6] = t & 0xFFFFFFFFULL; t >>= 32;
+    t += (uint64_t)r->d[7] + (((uint32_t)((bit >> 5) == 7)) << (bit & 0x1F));
+    r->d[7] = t & 0xFFFFFFFFULL;
+#ifdef VERIFY
+    VERIFY_CHECK((t >> 32) == 0);
+    VERIFY_CHECK(secp256k1_scalar_check_overflow(r) == 0);
+#endif
 }
 
 static void secp256k1_scalar_set_b32(secp256k1_scalar_t *r, const unsigned char *b32, int *overflow) {
@@ -405,12 +454,10 @@ static void secp256k1_scalar_reduce_512(secp256k1_scalar_t *r, const uint32_t *l
     secp256k1_scalar_reduce(r, c + secp256k1_scalar_check_overflow(r));
 }
 
-static void secp256k1_scalar_mul(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+static void secp256k1_scalar_mul_512(uint32_t l[16], const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
     /* 96 bit accumulator. */
     uint32_t c0 = 0, c1 = 0, c2 = 0;
 
-    uint32_t l[16];
-
     /* l[0..15] = a[0..7] * b[0..7]. */
     muladd_fast(a->d[0], b->d[0]);
     extract_fast(l[0]);
@@ -493,16 +540,12 @@ static void secp256k1_scalar_mul(secp256k1_scalar_t *r, const secp256k1_scalar_t
     extract_fast(l[14]);
     VERIFY_CHECK(c1 == 0);
     l[15] = c0;
-
-    secp256k1_scalar_reduce_512(r, l);
 }
 
-static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t *a) {
+static void secp256k1_scalar_sqr_512(uint32_t l[16], const secp256k1_scalar_t *a) {
     /* 96 bit accumulator. */
     uint32_t c0 = 0, c1 = 0, c2 = 0;
 
-    uint32_t l[16];
-
     /* l[0..15] = a[0..7]^2. */
     muladd_fast(a->d[0], a->d[0]);
     extract_fast(l[0]);
@@ -557,8 +600,6 @@ static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t
     extract_fast(l[14]);
     VERIFY_CHECK(c1 == 0);
     l[15] = c0;
-
-    secp256k1_scalar_reduce_512(r, l);
 }
 
 #undef sumadd
@@ -569,4 +610,59 @@ static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t
 #undef extract
 #undef extract_fast
 
+static void secp256k1_scalar_mul(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+    uint32_t l[16];
+    secp256k1_scalar_mul_512(l, a, b);
+    secp256k1_scalar_reduce_512(r, l);
+}
+
+static void secp256k1_scalar_sqr(secp256k1_scalar_t *r, const secp256k1_scalar_t *a) {
+    uint32_t l[16];
+    secp256k1_scalar_sqr_512(l, a);
+    secp256k1_scalar_reduce_512(r, l);
+}
+
+static void secp256k1_scalar_split_128(secp256k1_scalar_t *r1, secp256k1_scalar_t *r2, const secp256k1_scalar_t *a) {
+    r1->d[0] = a->d[0];
+    r1->d[1] = a->d[1];
+    r1->d[2] = a->d[2];
+    r1->d[3] = a->d[3];
+    r1->d[4] = 0;
+    r1->d[5] = 0;
+    r1->d[6] = 0;
+    r1->d[7] = 0;
+    r2->d[0] = a->d[4];
+    r2->d[1] = a->d[5];
+    r2->d[2] = a->d[6];
+    r2->d[3] = a->d[7];
+    r2->d[4] = 0;
+    r2->d[5] = 0;
+    r2->d[6] = 0;
+    r2->d[7] = 0;
+}
+
+SECP256K1_INLINE static int secp256k1_scalar_eq(const secp256k1_scalar_t *a, const secp256k1_scalar_t *b) {
+    return ((a->d[0] ^ b->d[0]) | (a->d[1] ^ b->d[1]) | (a->d[2] ^ b->d[2]) | (a->d[3] ^ b->d[3]) | (a->d[4] ^ b->d[4]) | (a->d[5] ^ b->d[5]) | (a->d[6] ^ b->d[6]) | (a->d[7] ^ b->d[7])) == 0;
+}
+
+SECP256K1_INLINE static void secp256k1_scalar_mul_shift_var(secp256k1_scalar_t *r, const secp256k1_scalar_t *a, const secp256k1_scalar_t *b, unsigned int shift) {
+    VERIFY_CHECK(shift >= 256);
+    uint32_t l[16];
+    secp256k1_scalar_mul_512(l, a, b);
+    unsigned int shiftlimbs = shift >> 5;
+    unsigned int shiftlow = shift & 0x1F;
+    unsigned int shifthigh = 32 - shiftlow;
+    r->d[0] = shift < 512 ? (l[0 + shiftlimbs] >> shiftlow | (shift < 480 && shiftlow ? (l[1 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[1] = shift < 480 ? (l[1 + shiftlimbs] >> shiftlow | (shift < 448 && shiftlow ? (l[2 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[2] = shift < 448 ? (l[2 + shiftlimbs] >> shiftlow | (shift < 416 && shiftlow ? (l[3 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[3] = shift < 416 ? (l[3 + shiftlimbs] >> shiftlow | (shift < 384 && shiftlow ? (l[4 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[4] = shift < 384 ? (l[4 + shiftlimbs] >> shiftlow | (shift < 352 && shiftlow ? (l[5 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[5] = shift < 352 ? (l[5 + shiftlimbs] >> shiftlow | (shift < 320 && shiftlow ? (l[6 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[6] = shift < 320 ? (l[6 + shiftlimbs] >> shiftlow | (shift < 288 && shiftlow ? (l[7 + shiftlimbs] << shifthigh) : 0)) : 0;
+    r->d[7] = shift < 288 ? (l[7 + shiftlimbs] >> shiftlow)  : 0;
+    if ((l[(shift - 1) >> 5] >> ((shift - 1) & 0x1f)) & 1) {
+        secp256k1_scalar_add_bit(r, 0);
+    }
+}
+
 #endif
diff --git a/src/secp256k1/src/scalar_impl.h b/src/secp256k1/src/scalar_impl.h
index ddc5061c76..4408cce2d8 100644
--- a/src/secp256k1/src/scalar_impl.h
+++ b/src/secp256k1/src/scalar_impl.h
@@ -9,6 +9,7 @@
 
 #include <string.h>
 
+#include "group.h"
 #include "scalar.h"
 
 #if defined HAVE_CONFIG_H
@@ -23,12 +24,132 @@
 #error "Please select scalar implementation"
 #endif
 
+typedef struct {
+#ifndef USE_NUM_NONE
+    secp256k1_num_t order;
+#endif
+#ifdef USE_ENDOMORPHISM
+    secp256k1_scalar_t minus_lambda, minus_b1, minus_b2, g1, g2;
+#endif
+} secp256k1_scalar_consts_t;
+
+static const secp256k1_scalar_consts_t *secp256k1_scalar_consts = NULL;
+
+static void secp256k1_scalar_start(void) {
+    if (secp256k1_scalar_consts != NULL)
+        return;
+
+    /* Allocate. */
+    secp256k1_scalar_consts_t *ret = (secp256k1_scalar_consts_t*)checked_malloc(sizeof(secp256k1_scalar_consts_t));
+
+#ifndef USE_NUM_NONE
+    static const unsigned char secp256k1_scalar_consts_order[] = {
+        0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+        0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,
+        0xBA,0xAE,0xDC,0xE6,0xAF,0x48,0xA0,0x3B,
+        0xBF,0xD2,0x5E,0x8C,0xD0,0x36,0x41,0x41
+    };
+    secp256k1_num_set_bin(&ret->order, secp256k1_scalar_consts_order, sizeof(secp256k1_scalar_consts_order));
+#endif
+#ifdef USE_ENDOMORPHISM
+    /**
+     * Lambda is a scalar which has the property for secp256k1 that point multiplication by
+     * it is efficiently computable (see secp256k1_gej_mul_lambda). */
+    static const unsigned char secp256k1_scalar_consts_lambda[32] = {
+         0x53,0x63,0xad,0x4c,0xc0,0x5c,0x30,0xe0,
+         0xa5,0x26,0x1c,0x02,0x88,0x12,0x64,0x5a,
+         0x12,0x2e,0x22,0xea,0x20,0x81,0x66,0x78,
+         0xdf,0x02,0x96,0x7c,0x1b,0x23,0xbd,0x72
+    };
+    /**
+     * "Guide to Elliptic Curve Cryptography" (Hankerson, Menezes, Vanstone) gives an algorithm
+     * (algorithm 3.74) to find k1 and k2 given k, such that k1 + k2 * lambda == k mod n, and k1
+     * and k2 have a small size.
+     * It relies on constants a1, b1, a2, b2. These constants for the value of lambda above are:
+     *
+     * - a1 =      {0x30,0x86,0xd2,0x21,0xa7,0xd4,0x6b,0xcd,0xe8,0x6c,0x90,0xe4,0x92,0x84,0xeb,0x15}
+     * - b1 =     -{0xe4,0x43,0x7e,0xd6,0x01,0x0e,0x88,0x28,0x6f,0x54,0x7f,0xa9,0x0a,0xbf,0xe4,0xc3}
+     * - a2 = {0x01,0x14,0xca,0x50,0xf7,0xa8,0xe2,0xf3,0xf6,0x57,0xc1,0x10,0x8d,0x9d,0x44,0xcf,0xd8}
+     * - b2 =      {0x30,0x86,0xd2,0x21,0xa7,0xd4,0x6b,0xcd,0xe8,0x6c,0x90,0xe4,0x92,0x84,0xeb,0x15}
+     *
+     * The algorithm then computes c1 = round(b1 * k / n) and c2 = round(b2 * k / n), and gives
+     * k1 = k - (c1*a1 + c2*a2) and k2 = -(c1*b1 + c2*b2). Instead, we use modular arithmetic, and
+     * compute k1 as k - k2 * lambda, avoiding the need for constants a1 and a2.
+     *
+     * g1, g2 are precomputed constants used to replace division with a rounded multiplication
+     * when decomposing the scalar for an endomorphism-based point multiplication.
+     *
+     * The possibility of using precomputed estimates is mentioned in "Guide to Elliptic Curve
+     * Cryptography" (Hankerson, Menezes, Vanstone) in section 3.5.
+     *
+     * The derivation is described in the paper "Efficient Software Implementation of Public-Key
+     * Cryptography on Sensor Networks Using the MSP430X Microcontroller" (Gouvea, Oliveira, Lopez),
+     * Section 4.3 (here we use a somewhat higher-precision estimate):
+     * d = a1*b2 - b1*a2
+     * g1 = round((2^272)*b2/d)
+     * g2 = round((2^272)*b1/d)
+     *
+     * (Note that 'd' is also equal to the curve order here because [a1,b1] and [a2,b2] are found
+     * as outputs of the Extended Euclidean Algorithm on inputs 'order' and 'lambda').
+     */
+    static const unsigned char secp256k1_scalar_consts_minus_b1[32] = {
+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+        0xe4,0x43,0x7e,0xd6,0x01,0x0e,0x88,0x28,
+        0x6f,0x54,0x7f,0xa9,0x0a,0xbf,0xe4,0xc3
+    };
+    static const unsigned char secp256k1_scalar_consts_b2[32] = {
+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+        0x30,0x86,0xd2,0x21,0xa7,0xd4,0x6b,0xcd,
+        0xe8,0x6c,0x90,0xe4,0x92,0x84,0xeb,0x15
+    };
+    static const unsigned char secp256k1_scalar_consts_g1[32] = {
+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+        0x00,0x00,0x00,0x00,0x00,0x00,0x30,0x86,
+        0xd2,0x21,0xa7,0xd4,0x6b,0xcd,0xe8,0x6c,
+        0x90,0xe4,0x92,0x84,0xeb,0x15,0x3d,0xab
+    };
+    static const unsigned char secp256k1_scalar_consts_g2[32] = {
+        0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
+        0x00,0x00,0x00,0x00,0x00,0x00,0xe4,0x43,
+        0x7e,0xd6,0x01,0x0e,0x88,0x28,0x6f,0x54,
+        0x7f,0xa9,0x0a,0xbf,0xe4,0xc4,0x22,0x12
+    };
+
+    secp256k1_scalar_set_b32(&ret->minus_lambda, secp256k1_scalar_consts_lambda, NULL);
+    secp256k1_scalar_negate(&ret->minus_lambda, &ret->minus_lambda);
+    secp256k1_scalar_set_b32(&ret->minus_b1, secp256k1_scalar_consts_minus_b1, NULL);
+    secp256k1_scalar_set_b32(&ret->minus_b2, secp256k1_scalar_consts_b2, NULL);
+    secp256k1_scalar_negate(&ret->minus_b2, &ret->minus_b2);
+    secp256k1_scalar_set_b32(&ret->g1, secp256k1_scalar_consts_g1, NULL);
+    secp256k1_scalar_set_b32(&ret->g2, secp256k1_scalar_consts_g2, NULL);
+#endif
+
+    /* Set the global pointer. */
+    secp256k1_scalar_consts = ret;
+}
+
+static void secp256k1_scalar_stop(void) {
+    if (secp256k1_scalar_consts == NULL)
+        return;
+
+    secp256k1_scalar_consts_t *c = (secp256k1_scalar_consts_t*)secp256k1_scalar_consts;
+    secp256k1_scalar_consts = NULL;
+    free(c);
+}
+
+#ifndef USE_NUM_NONE
 static void secp256k1_scalar_get_num(secp256k1_num_t *r, const secp256k1_scalar_t *a) {
     unsigned char c[32];
     secp256k1_scalar_get_b32(c, a);
     secp256k1_num_set_bin(r, c, 32);
 }
 
+static void secp256k1_scalar_order_get_num(secp256k1_num_t *r) {
+    *r = secp256k1_scalar_consts->order;
+}
+#endif
 
 static void secp256k1_scalar_inverse(secp256k1_scalar_t *r, const secp256k1_scalar_t *x) {
     /* First compute x ^ (2^N - 1) for some values of N. */
@@ -181,4 +302,35 @@ static void secp256k1_scalar_inverse(secp256k1_scalar_t *r, const secp256k1_scal
     secp256k1_scalar_mul(r, t, &x6); /* 111111 */
 }
 
+static void secp256k1_scalar_inverse_var(secp256k1_scalar_t *r, const secp256k1_scalar_t *x) {
+#if defined(USE_SCALAR_INV_BUILTIN)
+    secp256k1_scalar_inverse(r, x);
+#elif defined(USE_SCALAR_INV_NUM)
+    unsigned char b[32];
+    secp256k1_scalar_get_b32(b, x);
+    secp256k1_num_t n;
+    secp256k1_num_set_bin(&n, b, 32);
+    secp256k1_num_mod_inverse(&n, &n, &secp256k1_scalar_consts->order);
+    secp256k1_num_get_bin(b, 32, &n);
+    secp256k1_scalar_set_b32(r, b, NULL);
+#else
+#error "Please select scalar inverse implementation"
+#endif
+}
+
+#ifdef USE_ENDOMORPHISM
+static void secp256k1_scalar_split_lambda_var(secp256k1_scalar_t *r1, secp256k1_scalar_t *r2, const secp256k1_scalar_t *a) {
+    VERIFY_CHECK(r1 != a);
+    VERIFY_CHECK(r2 != a);
+    secp256k1_scalar_t c1, c2;
+    secp256k1_scalar_mul_shift_var(&c1, a, &secp256k1_scalar_consts->g1, 272);
+    secp256k1_scalar_mul_shift_var(&c2, a, &secp256k1_scalar_consts->g2, 272);
+    secp256k1_scalar_mul(&c1, &c1, &secp256k1_scalar_consts->minus_b1);
+    secp256k1_scalar_mul(&c2, &c2, &secp256k1_scalar_consts->minus_b2);
+    secp256k1_scalar_add(r2, &c1, &c2);
+    secp256k1_scalar_mul(r1, r2, &secp256k1_scalar_consts->minus_lambda);
+    secp256k1_scalar_add(r1, r1, a);
+}
+#endif
+
 #endif
diff --git a/src/secp256k1/src/secp256k1.c b/src/secp256k1/src/secp256k1.c
index 1ab5b3722c..58bcd8d009 100644
--- a/src/secp256k1/src/secp256k1.c
+++ b/src/secp256k1/src/secp256k1.c
@@ -17,10 +17,13 @@
 #include "ecmult_gen_impl.h"
 #include "ecdsa_impl.h"
 #include "eckey_impl.h"
+#include "hash_impl.h"
 
 void secp256k1_start(unsigned int flags) {
     secp256k1_fe_start();
     secp256k1_ge_start();
+    secp256k1_scalar_start();
+    secp256k1_ecdsa_start();
     if (flags & SECP256K1_START_SIGN) {
         secp256k1_ecmult_gen_start();
     }
@@ -32,22 +35,23 @@ void secp256k1_start(unsigned int flags) {
 void secp256k1_stop(void) {
     secp256k1_ecmult_stop();
     secp256k1_ecmult_gen_stop();
+    secp256k1_ecdsa_stop();
+    secp256k1_scalar_stop();
     secp256k1_ge_stop();
     secp256k1_fe_stop();
 }
 
-int secp256k1_ecdsa_verify(const unsigned char *msg, int msglen, const unsigned char *sig, int siglen, const unsigned char *pubkey, int pubkeylen) {
+int secp256k1_ecdsa_verify(const unsigned char *msg32, const unsigned char *sig, int siglen, const unsigned char *pubkey, int pubkeylen) {
     DEBUG_CHECK(secp256k1_ecmult_consts != NULL);
-    DEBUG_CHECK(msg != NULL);
-    DEBUG_CHECK(msglen <= 32);
+    DEBUG_CHECK(msg32 != NULL);
     DEBUG_CHECK(sig != NULL);
     DEBUG_CHECK(pubkey != NULL);
 
     int ret = -3;
-    secp256k1_num_t m;
+    secp256k1_scalar_t m;
     secp256k1_ecdsa_sig_t s;
     secp256k1_ge_t q;
-    secp256k1_num_set_bin(&m, msg, msglen);
+    secp256k1_scalar_set_b32(&m, msg32, NULL);
 
     if (!secp256k1_eckey_pubkey_parse(&q, pubkey, pubkeylen)) {
         ret = -1;
@@ -66,32 +70,54 @@ end:
     return ret;
 }
 
-int secp256k1_ecdsa_sign(const unsigned char *message, int messagelen, unsigned char *signature, int *signaturelen, const unsigned char *seckey, const unsigned char *nonce) {
+static int nonce_function_rfc6979(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, unsigned int counter, const void *data) {
+   (void)data;
+   secp256k1_rfc6979_hmac_sha256_t rng;
+   secp256k1_rfc6979_hmac_sha256_initialize(&rng, key32, 32, msg32, 32);
+   for (unsigned int i = 0; i <= counter; i++) {
+       secp256k1_rfc6979_hmac_sha256_generate(&rng, nonce32, 32);
+   }
+   secp256k1_rfc6979_hmac_sha256_finalize(&rng);
+   return 1;
+}
+
+const secp256k1_nonce_function_t secp256k1_nonce_function_rfc6979 = nonce_function_rfc6979;
+const secp256k1_nonce_function_t secp256k1_nonce_function_default = nonce_function_rfc6979;
+
+int secp256k1_ecdsa_sign(const unsigned char *msg32, unsigned char *signature, int *signaturelen, const unsigned char *seckey, secp256k1_nonce_function_t noncefp, const void* noncedata) {
     DEBUG_CHECK(secp256k1_ecmult_gen_consts != NULL);
-    DEBUG_CHECK(message != NULL);
-    DEBUG_CHECK(messagelen <= 32);
+    DEBUG_CHECK(msg32 != NULL);
     DEBUG_CHECK(signature != NULL);
     DEBUG_CHECK(signaturelen != NULL);
     DEBUG_CHECK(seckey != NULL);
-    DEBUG_CHECK(nonce != NULL);
+    if (noncefp == NULL) {
+        noncefp = secp256k1_nonce_function_default;
+    }
 
     secp256k1_scalar_t sec, non, msg;
     secp256k1_scalar_set_b32(&sec, seckey, NULL);
+    secp256k1_scalar_set_b32(&msg, msg32, NULL);
     int overflow = 0;
-    secp256k1_scalar_set_b32(&non, nonce, &overflow);
-    {
-        unsigned char c[32] = {0};
-        memcpy(c + 32 - messagelen, message, messagelen);
-        secp256k1_scalar_set_b32(&msg, c, NULL);
-        memset(c, 0, 32);
-    }
-    int ret = !secp256k1_scalar_is_zero(&non) && !overflow;
+    int ret = 0;
+    unsigned int count = 0;
     secp256k1_ecdsa_sig_t sig;
-    if (ret) {
-        ret = secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, NULL);
+    while (1) {
+        unsigned char nonce32[32];
+        ret = noncefp(nonce32, msg32, seckey, count, noncedata);
+        if (!ret) {
+            break;
+        }
+        secp256k1_scalar_set_b32(&non, nonce32, &overflow);
+        memset(nonce32, 0, 32);
+        if (!secp256k1_scalar_is_zero(&non) && !overflow) {
+            if (secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, NULL)) {
+                break;
+            }
+        }
+        count++;
     }
     if (ret) {
-        secp256k1_ecdsa_sig_serialize(signature, signaturelen, &sig);
+        ret = secp256k1_ecdsa_sig_serialize(signature, signaturelen, &sig);
     }
     secp256k1_scalar_clear(&msg);
     secp256k1_scalar_clear(&non);
@@ -99,32 +125,40 @@ int secp256k1_ecdsa_sign(const unsigned char *message, int messagelen, unsigned
     return ret;
 }
 
-int secp256k1_ecdsa_sign_compact(const unsigned char *message, int messagelen, unsigned char *sig64, const unsigned char *seckey, const unsigned char *nonce, int *recid) {
+int secp256k1_ecdsa_sign_compact(const unsigned char *msg32, unsigned char *sig64, const unsigned char *seckey, secp256k1_nonce_function_t noncefp, const void* noncedata, int *recid) {
     DEBUG_CHECK(secp256k1_ecmult_gen_consts != NULL);
-    DEBUG_CHECK(message != NULL);
-    DEBUG_CHECK(messagelen <= 32);
+    DEBUG_CHECK(msg32 != NULL);
     DEBUG_CHECK(sig64 != NULL);
     DEBUG_CHECK(seckey != NULL);
-    DEBUG_CHECK(nonce != NULL);
+    if (noncefp == NULL) {
+        noncefp = secp256k1_nonce_function_default;
+    }
 
     secp256k1_scalar_t sec, non, msg;
     secp256k1_scalar_set_b32(&sec, seckey, NULL);
+    secp256k1_scalar_set_b32(&msg, msg32, NULL);
     int overflow = 0;
-    secp256k1_scalar_set_b32(&non, nonce, &overflow);
-    {
-        unsigned char c[32] = {0};
-        memcpy(c + 32 - messagelen, message, messagelen);
-        secp256k1_scalar_set_b32(&msg, c, NULL);
-        memset(c, 0, 32);
-    }
-    int ret = !secp256k1_scalar_is_zero(&non) && !overflow;
+    int ret = 0;
+    unsigned int count = 0;
     secp256k1_ecdsa_sig_t sig;
-    if (ret) {
-        ret = secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, recid);
+    while (1) {
+        unsigned char nonce32[32];
+        ret = noncefp(nonce32, msg32, seckey, count, noncedata);
+        if (!ret) {
+            break;
+        }
+        secp256k1_scalar_set_b32(&non, nonce32, &overflow);
+        memset(nonce32, 0, 32);
+        if (!secp256k1_scalar_is_zero(&non) && !overflow) {
+            if (secp256k1_ecdsa_sig_sign(&sig, &sec, &msg, &non, recid)) {
+                break;
+            }
+        }
+        count++;
     }
     if (ret) {
-        secp256k1_num_get_bin(sig64, 32, &sig.r);
-        secp256k1_num_get_bin(sig64 + 32, 32, &sig.s);
+        secp256k1_scalar_get_b32(sig64, &sig.r);
+        secp256k1_scalar_get_b32(sig64 + 32, &sig.s);
     }
     secp256k1_scalar_clear(&msg);
     secp256k1_scalar_clear(&non);
@@ -132,21 +166,27 @@ int secp256k1_ecdsa_sign_compact(const unsigned char *message, int messagelen, u
     return ret;
 }
 
-int secp256k1_ecdsa_recover_compact(const unsigned char *msg, int msglen, const unsigned char *sig64, unsigned char *pubkey, int *pubkeylen, int compressed, int recid) {
+int secp256k1_ecdsa_recover_compact(const unsigned char *msg32, const unsigned char *sig64, unsigned char *pubkey, int *pubkeylen, int compressed, int recid) {
     DEBUG_CHECK(secp256k1_ecmult_consts != NULL);
-    DEBUG_CHECK(msg != NULL);
-    DEBUG_CHECK(msglen <= 32);
+    DEBUG_CHECK(msg32 != NULL);
     DEBUG_CHECK(sig64 != NULL);
     DEBUG_CHECK(pubkey != NULL);
     DEBUG_CHECK(pubkeylen != NULL);
     DEBUG_CHECK(recid >= 0 && recid <= 3);
 
     int ret = 0;
-    secp256k1_num_t m;
+    secp256k1_scalar_t m;
     secp256k1_ecdsa_sig_t sig;
-    secp256k1_num_set_bin(&sig.r, sig64, 32);
-    secp256k1_num_set_bin(&sig.s, sig64 + 32, 32);
-    secp256k1_num_set_bin(&m, msg, msglen);
+    int overflow = 0;
+    secp256k1_scalar_set_b32(&sig.r, sig64, &overflow);
+    if (overflow) {
+        return 0;
+    }
+    secp256k1_scalar_set_b32(&sig.s, sig64 + 32, &overflow);
+    if (overflow) {
+        return 0;
+    }
+    secp256k1_scalar_set_b32(&m, msg32, NULL);
 
     secp256k1_ge_t q;
     if (secp256k1_ecdsa_sig_recover(&sig, &q, &m, recid)) {
@@ -224,8 +264,12 @@ int secp256k1_ec_pubkey_tweak_add(unsigned char *pubkey, int pubkeylen, const un
     DEBUG_CHECK(pubkey != NULL);
     DEBUG_CHECK(tweak != NULL);
 
-    secp256k1_num_t term;
-    secp256k1_num_set_bin(&term, tweak, 32);
+    secp256k1_scalar_t term;
+    int overflow = 0;
+    secp256k1_scalar_set_b32(&term, tweak, &overflow);
+    if (overflow) {
+        return 0;
+    }
     secp256k1_ge_t p;
     int ret = secp256k1_eckey_pubkey_parse(&p, pubkey, pubkeylen);
     if (ret) {
@@ -264,8 +308,12 @@ int secp256k1_ec_pubkey_tweak_mul(unsigned char *pubkey, int pubkeylen, const un
     DEBUG_CHECK(pubkey != NULL);
     DEBUG_CHECK(tweak != NULL);
 
-    secp256k1_num_t factor;
-    secp256k1_num_set_bin(&factor, tweak, 32);
+    secp256k1_scalar_t factor;
+    int overflow = 0;
+    secp256k1_scalar_set_b32(&factor, tweak, &overflow);
+    if (overflow) {
+        return 0;
+    }
     secp256k1_ge_t p;
     int ret = secp256k1_eckey_pubkey_parse(&p, pubkey, pubkeylen);
     if (ret) {
diff --git a/src/secp256k1/src/tests.c b/src/secp256k1/src/tests.c
index 5d9b8344d9..cff32f1d06 100644
--- a/src/secp256k1/src/tests.c
+++ b/src/secp256k1/src/tests.c
@@ -11,6 +11,8 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#include <time.h>
+
 #include "secp256k1.c"
 #include "testrand_impl.h"
 
@@ -23,40 +25,37 @@
 
 static int count = 64;
 
-/***** NUM TESTS *****/
-
-void random_num_negate(secp256k1_num_t *num) {
-    if (secp256k1_rand32() & 1)
-        secp256k1_num_negate(num);
-}
-
 void random_field_element_test(secp256k1_fe_t *fe) {
     do {
         unsigned char b32[32];
         secp256k1_rand256_test(b32);
-        secp256k1_num_t num;
-        secp256k1_num_set_bin(&num, b32, 32);
-        if (secp256k1_num_cmp(&num, &secp256k1_fe_consts->p) >= 0)
-            continue;
-        secp256k1_fe_set_b32(fe, b32);
-        break;
+        if (secp256k1_fe_set_b32(fe, b32)) {
+            break;
+        }
     } while(1);
 }
 
 void random_field_element_magnitude(secp256k1_fe_t *fe) {
+    int n = secp256k1_rand32() % 9;
     secp256k1_fe_normalize(fe);
-    int n = secp256k1_rand32() % 4;
-    for (int i = 0; i < n; i++) {
-        secp256k1_fe_negate(fe, fe, 1 + 2*i);
-        secp256k1_fe_negate(fe, fe, 2 + 2*i);
+    if (n == 0) {
+        return;
     }
+    secp256k1_fe_t zero;
+    secp256k1_fe_clear(&zero);
+    secp256k1_fe_negate(&zero, &zero, 0);
+    secp256k1_fe_mul_int(&zero, n - 1);
+    secp256k1_fe_add(fe, &zero);
+#ifdef VERIFY
+    CHECK(fe->magnitude == n);
+#endif
 }
 
 void random_group_element_test(secp256k1_ge_t *ge) {
     secp256k1_fe_t fe;
     do {
         random_field_element_test(&fe);
-        if (secp256k1_ge_set_xo(ge, &fe, secp256k1_rand32() & 1))
+        if (secp256k1_ge_set_xo_var(ge, &fe, secp256k1_rand32() & 1))
             break;
     } while(1);
 }
@@ -75,19 +74,6 @@ void random_group_element_jacobian_test(secp256k1_gej_t *gej, const secp256k1_ge
     gej->infinity = ge->infinity;
 }
 
-void random_num_order_test(secp256k1_num_t *num) {
-    do {
-        unsigned char b32[32];
-        secp256k1_rand256_test(b32);
-        secp256k1_num_set_bin(num, b32, 32);
-        if (secp256k1_num_is_zero(num))
-            continue;
-        if (secp256k1_num_cmp(num, &secp256k1_ge_consts->order) >= 0)
-            continue;
-        break;
-    } while(1);
-}
-
 void random_scalar_order_test(secp256k1_scalar_t *num) {
     do {
         unsigned char b32[32];
@@ -100,82 +86,151 @@ void random_scalar_order_test(secp256k1_scalar_t *num) {
     } while(1);
 }
 
-void random_num_order(secp256k1_num_t *num) {
+void random_scalar_order(secp256k1_scalar_t *num) {
     do {
         unsigned char b32[32];
         secp256k1_rand256(b32);
-        secp256k1_num_set_bin(num, b32, 32);
-        if (secp256k1_num_is_zero(num))
-            continue;
-        if (secp256k1_num_cmp(num, &secp256k1_ge_consts->order) >= 0)
+        int overflow = 0;
+        secp256k1_scalar_set_b32(num, b32, &overflow);
+        if (overflow || secp256k1_scalar_is_zero(num))
             continue;
         break;
     } while(1);
 }
 
-void test_num_copy_inc_cmp(void) {
-    secp256k1_num_t n1,n2;
-    random_num_order(&n1);
-    secp256k1_num_copy(&n2, &n1);
-    CHECK(secp256k1_num_eq(&n1, &n2));
-    CHECK(secp256k1_num_eq(&n2, &n1));
-    secp256k1_num_inc(&n2);
-    CHECK(!secp256k1_num_eq(&n1, &n2));
-    CHECK(!secp256k1_num_eq(&n2, &n1));
-}
-
+/***** HASH TESTS *****/
 
-void test_num_get_set_hex(void) {
-    secp256k1_num_t n1,n2;
-    random_num_order_test(&n1);
-    char c[64];
-    secp256k1_num_get_hex(c, 64, &n1);
-    secp256k1_num_set_hex(&n2, c, 64);
-    CHECK(secp256k1_num_eq(&n1, &n2));
-    for (int i=0; i<64; i++) {
-        /* check whether the lower 4 bits correspond to the last hex character */
-        int low1 = secp256k1_num_shift(&n1, 4);
-        int lowh = c[63];
-        int low2 = ((lowh>>6)*9+(lowh-'0'))&15;
-        CHECK(low1 == low2);
-        /* shift bits off the hex representation, and compare */
-        memmove(c+1, c, 63);
-        c[0] = '0';
-        secp256k1_num_set_hex(&n2, c, 64);
-        CHECK(secp256k1_num_eq(&n1, &n2));
+void run_sha256_tests(void) {
+    static const char *inputs[8] = {
+        "", "abc", "message digest", "secure hash algorithm", "SHA256 is considered to be safe",
+        "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
+        "For this sample, this 63-byte string will be used as input data",
+        "This is exactly 64 bytes long, not counting the terminating byte"
+    };
+    static const unsigned char outputs[8][32] = {
+        {0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c, 0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55},
+        {0xba, 0x78, 0x16, 0xbf, 0x8f, 0x01, 0xcf, 0xea, 0x41, 0x41, 0x40, 0xde, 0x5d, 0xae, 0x22, 0x23, 0xb0, 0x03, 0x61, 0xa3, 0x96, 0x17, 0x7a, 0x9c, 0xb4, 0x10, 0xff, 0x61, 0xf2, 0x00, 0x15, 0xad},
+        {0xf7, 0x84, 0x6f, 0x55, 0xcf, 0x23, 0xe1, 0x4e, 0xeb, 0xea, 0xb5, 0xb4, 0xe1, 0x55, 0x0c, 0xad, 0x5b, 0x50, 0x9e, 0x33, 0x48, 0xfb, 0xc4, 0xef, 0xa3, 0xa1, 0x41, 0x3d, 0x39, 0x3c, 0xb6, 0x50},
+        {0xf3, 0x0c, 0xeb, 0x2b, 0xb2, 0x82, 0x9e, 0x79, 0xe4, 0xca, 0x97, 0x53, 0xd3, 0x5a, 0x8e, 0xcc, 0x00, 0x26, 0x2d, 0x16, 0x4c, 0xc0, 0x77, 0x08, 0x02, 0x95, 0x38, 0x1c, 0xbd, 0x64, 0x3f, 0x0d},
+        {0x68, 0x19, 0xd9, 0x15, 0xc7, 0x3f, 0x4d, 0x1e, 0x77, 0xe4, 0xe1, 0xb5, 0x2d, 0x1f, 0xa0, 0xf9, 0xcf, 0x9b, 0xea, 0xea, 0xd3, 0x93, 0x9f, 0x15, 0x87, 0x4b, 0xd9, 0x88, 0xe2, 0xa2, 0x36, 0x30},
+        {0x24, 0x8d, 0x6a, 0x61, 0xd2, 0x06, 0x38, 0xb8, 0xe5, 0xc0, 0x26, 0x93, 0x0c, 0x3e, 0x60, 0x39, 0xa3, 0x3c, 0xe4, 0x59, 0x64, 0xff, 0x21, 0x67, 0xf6, 0xec, 0xed, 0xd4, 0x19, 0xdb, 0x06, 0xc1},
+        {0xf0, 0x8a, 0x78, 0xcb, 0xba, 0xee, 0x08, 0x2b, 0x05, 0x2a, 0xe0, 0x70, 0x8f, 0x32, 0xfa, 0x1e, 0x50, 0xc5, 0xc4, 0x21, 0xaa, 0x77, 0x2b, 0xa5, 0xdb, 0xb4, 0x06, 0xa2, 0xea, 0x6b, 0xe3, 0x42},
+        {0xab, 0x64, 0xef, 0xf7, 0xe8, 0x8e, 0x2e, 0x46, 0x16, 0x5e, 0x29, 0xf2, 0xbc, 0xe4, 0x18, 0x26, 0xbd, 0x4c, 0x7b, 0x35, 0x52, 0xf6, 0xb3, 0x82, 0xa9, 0xe7, 0xd3, 0xaf, 0x47, 0xc2, 0x45, 0xf8}
+    };
+    for (int i = 0; i < 8; i++) {
+        secp256k1_sha256_t hasher;
+        secp256k1_sha256_initialize(&hasher);
+        secp256k1_sha256_write(&hasher, (const unsigned char*)(inputs[i]), strlen(inputs[i]));
+        unsigned char out[32];
+        secp256k1_sha256_finalize(&hasher, out);
+        CHECK(memcmp(out, outputs[i], 32) == 0);
+        if (strlen(inputs[i]) > 0) {
+            secp256k1_sha256_initialize(&hasher);
+            int split = secp256k1_rand32() % strlen(inputs[i]);
+            secp256k1_sha256_write(&hasher, (const unsigned char*)(inputs[i]), split);
+            secp256k1_sha256_write(&hasher, (const unsigned char*)(inputs[i] + split), strlen(inputs[i]) - split);
+            secp256k1_sha256_finalize(&hasher, out);
+            CHECK(memcmp(out, outputs[i], 32) == 0);
+        }
     }
 }
 
-void test_num_get_set_bin(void) {
-    secp256k1_num_t n1,n2;
-    random_num_order_test(&n1);
-    unsigned char c[32];
-    secp256k1_num_get_bin(c, 32, &n1);
-    secp256k1_num_set_bin(&n2, c, 32);
-    CHECK(secp256k1_num_eq(&n1, &n2));
-    for (int i=0; i<32; i++) {
-        /* check whether the lower 8 bits correspond to the last byte */
-        int low1 = secp256k1_num_shift(&n1, 8);
-        int low2 = c[31];
-        CHECK(low1 == low2);
-        /* shift bits off the byte representation, and compare */
-        memmove(c+1, c, 31);
-        c[0] = 0;
-        secp256k1_num_set_bin(&n2, c, 32);
-        CHECK(secp256k1_num_eq(&n1, &n2));
+void run_hmac_sha256_tests(void) {
+    static const char *keys[6] = {
+        "\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b\x0b",
+        "\x4a\x65\x66\x65",
+        "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa",
+        "\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x18\x19",
+        "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa",
+        "\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa\xaa"
+    };
+    static const char *inputs[6] = {
+        "\x48\x69\x20\x54\x68\x65\x72\x65",
+        "\x77\x68\x61\x74\x20\x64\x6f\x20\x79\x61\x20\x77\x61\x6e\x74\x20\x66\x6f\x72\x20\x6e\x6f\x74\x68\x69\x6e\x67\x3f",
+        "\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd\xdd",
+        "\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd\xcd",
+        "\x54\x65\x73\x74\x20\x55\x73\x69\x6e\x67\x20\x4c\x61\x72\x67\x65\x72\x20\x54\x68\x61\x6e\x20\x42\x6c\x6f\x63\x6b\x2d\x53\x69\x7a\x65\x20\x4b\x65\x79\x20\x2d\x20\x48\x61\x73\x68\x20\x4b\x65\x79\x20\x46\x69\x72\x73\x74",
+        "\x54\x68\x69\x73\x20\x69\x73\x20\x61\x20\x74\x65\x73\x74\x20\x75\x73\x69\x6e\x67\x20\x61\x20\x6c\x61\x72\x67\x65\x72\x20\x74\x68\x61\x6e\x20\x62\x6c\x6f\x63\x6b\x2d\x73\x69\x7a\x65\x20\x6b\x65\x79\x20\x61\x6e\x64\x20\x61\x20\x6c\x61\x72\x67\x65\x72\x20\x74\x68\x61\x6e\x20\x62\x6c\x6f\x63\x6b\x2d\x73\x69\x7a\x65\x20\x64\x61\x74\x61\x2e\x20\x54\x68\x65\x20\x6b\x65\x79\x20\x6e\x65\x65\x64\x73\x20\x74\x6f\x20\x62\x65\x20\x68\x61\x73\x68\x65\x64\x20\x62\x65\x66\x6f\x72\x65\x20\x62\x65\x69\x6e\x67\x20\x75\x73\x65\x64\x20\x62\x79\x20\x74\x68\x65\x20\x48\x4d\x41\x43\x20\x61\x6c\x67\x6f\x72\x69\x74\x68\x6d\x2e"
+    };
+    static const unsigned char outputs[6][32] = {
+        {0xb0, 0x34, 0x4c, 0x61, 0xd8, 0xdb, 0x38, 0x53, 0x5c, 0xa8, 0xaf, 0xce, 0xaf, 0x0b, 0xf1, 0x2b, 0x88, 0x1d, 0xc2, 0x00, 0xc9, 0x83, 0x3d, 0xa7, 0x26, 0xe9, 0x37, 0x6c, 0x2e, 0x32, 0xcf, 0xf7},
+        {0x5b, 0xdc, 0xc1, 0x46, 0xbf, 0x60, 0x75, 0x4e, 0x6a, 0x04, 0x24, 0x26, 0x08, 0x95, 0x75, 0xc7, 0x5a, 0x00, 0x3f, 0x08, 0x9d, 0x27, 0x39, 0x83, 0x9d, 0xec, 0x58, 0xb9, 0x64, 0xec, 0x38, 0x43},
+        {0x77, 0x3e, 0xa9, 0x1e, 0x36, 0x80, 0x0e, 0x46, 0x85, 0x4d, 0xb8, 0xeb, 0xd0, 0x91, 0x81, 0xa7, 0x29, 0x59, 0x09, 0x8b, 0x3e, 0xf8, 0xc1, 0x22, 0xd9, 0x63, 0x55, 0x14, 0xce, 0xd5, 0x65, 0xfe},
+        {0x82, 0x55, 0x8a, 0x38, 0x9a, 0x44, 0x3c, 0x0e, 0xa4, 0xcc, 0x81, 0x98, 0x99, 0xf2, 0x08, 0x3a, 0x85, 0xf0, 0xfa, 0xa3, 0xe5, 0x78, 0xf8, 0x07, 0x7a, 0x2e, 0x3f, 0xf4, 0x67, 0x29, 0x66, 0x5b},
+        {0x60, 0xe4, 0x31, 0x59, 0x1e, 0xe0, 0xb6, 0x7f, 0x0d, 0x8a, 0x26, 0xaa, 0xcb, 0xf5, 0xb7, 0x7f, 0x8e, 0x0b, 0xc6, 0x21, 0x37, 0x28, 0xc5, 0x14, 0x05, 0x46, 0x04, 0x0f, 0x0e, 0xe3, 0x7f, 0x54},
+        {0x9b, 0x09, 0xff, 0xa7, 0x1b, 0x94, 0x2f, 0xcb, 0x27, 0x63, 0x5f, 0xbc, 0xd5, 0xb0, 0xe9, 0x44, 0xbf, 0xdc, 0x63, 0x64, 0x4f, 0x07, 0x13, 0x93, 0x8a, 0x7f, 0x51, 0x53, 0x5c, 0x3a, 0x35, 0xe2}
+    };
+    for (int i = 0; i < 6; i++) {
+        secp256k1_hmac_sha256_t hasher;
+        secp256k1_hmac_sha256_initialize(&hasher, (const unsigned char*)(keys[i]), strlen(keys[i]));
+        secp256k1_hmac_sha256_write(&hasher, (const unsigned char*)(inputs[i]), strlen(inputs[i]));
+        unsigned char out[32];
+        secp256k1_hmac_sha256_finalize(&hasher, out);
+        CHECK(memcmp(out, outputs[i], 32) == 0);
+        if (strlen(inputs[i]) > 0) {
+            secp256k1_hmac_sha256_initialize(&hasher, (const unsigned char*)(keys[i]), strlen(keys[i]));
+            int split = secp256k1_rand32() % strlen(inputs[i]);
+            secp256k1_hmac_sha256_write(&hasher, (const unsigned char*)(inputs[i]), split);
+            secp256k1_hmac_sha256_write(&hasher, (const unsigned char*)(inputs[i] + split), strlen(inputs[i]) - split);
+            secp256k1_hmac_sha256_finalize(&hasher, out);
+            CHECK(memcmp(out, outputs[i], 32) == 0);
+        }
     }
 }
 
-void run_num_int(void) {
-    secp256k1_num_t n1;
-    for (int i=-255; i<256; i++) {
-        unsigned char c1[3] = {};
-        c1[2] = abs(i);
-        unsigned char c2[3] = {0x11,0x22,0x33};
-        secp256k1_num_set_int(&n1, i);
-        secp256k1_num_get_bin(c2, 3, &n1);
-        CHECK(memcmp(c1, c2, 3) == 0);
+void run_rfc6979_hmac_sha256_tests(void) {
+    static const unsigned char key1[32] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x00};
+    static const unsigned char msg1[32] = {0x4b, 0xf5, 0x12, 0x2f, 0x34, 0x45, 0x54, 0xc5, 0x3b, 0xde, 0x2e, 0xbb, 0x8c, 0xd2, 0xb7, 0xe3, 0xd1, 0x60, 0x0a, 0xd6, 0x31, 0xc3, 0x85, 0xa5, 0xd7, 0xcc, 0xe2, 0x3c, 0x77, 0x85, 0x45, 0x9a};
+    static const unsigned char out1[3][32] = {
+        {0x4f, 0xe2, 0x95, 0x25, 0xb2, 0x08, 0x68, 0x09, 0x15, 0x9a, 0xcd, 0xf0, 0x50, 0x6e, 0xfb, 0x86, 0xb0, 0xec, 0x93, 0x2c, 0x7b, 0xa4, 0x42, 0x56, 0xab, 0x32, 0x1e, 0x42, 0x1e, 0x67, 0xe9, 0xfb},
+        {0x2b, 0xf0, 0xff, 0xf1, 0xd3, 0xc3, 0x78, 0xa2, 0x2d, 0xc5, 0xde, 0x1d, 0x85, 0x65, 0x22, 0x32, 0x5c, 0x65, 0xb5, 0x04, 0x49, 0x1a, 0x0c, 0xbd, 0x01, 0xcb, 0x8f, 0x3a, 0xa6, 0x7f, 0xfd, 0x4a},
+        {0xf5, 0x28, 0xb4, 0x10, 0xcb, 0x54, 0x1f, 0x77, 0x00, 0x0d, 0x7a, 0xfb, 0x6c, 0x5b, 0x53, 0xc5, 0xc4, 0x71, 0xea, 0xb4, 0x3e, 0x46, 0x6d, 0x9a, 0xc5, 0x19, 0x0c, 0x39, 0xc8, 0x2f, 0xd8, 0x2e}
+    };
+
+    static const unsigned char key2[32] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+    static const unsigned char msg2[32] = {0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, 0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24, 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c, 0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55};
+    static const unsigned char out2[3][32] = {
+        {0x9c, 0x23, 0x6c, 0x16, 0x5b, 0x82, 0xae, 0x0c, 0xd5, 0x90, 0x65, 0x9e, 0x10, 0x0b, 0x6b, 0xab, 0x30, 0x36, 0xe7, 0xba, 0x8b, 0x06, 0x74, 0x9b, 0xaf, 0x69, 0x81, 0xe1, 0x6f, 0x1a, 0x2b, 0x95},
+        {0xdf, 0x47, 0x10, 0x61, 0x62, 0x5b, 0xc0, 0xea, 0x14, 0xb6, 0x82, 0xfe, 0xee, 0x2c, 0x9c, 0x02, 0xf2, 0x35, 0xda, 0x04, 0x20, 0x4c, 0x1d, 0x62, 0xa1, 0x53, 0x6c, 0x6e, 0x17, 0xae, 0xd7, 0xa9},
+        {0x75, 0x97, 0x88, 0x7c, 0xbd, 0x76, 0x32, 0x1f, 0x32, 0xe3, 0x04, 0x40, 0x67, 0x9a, 0x22, 0xcf, 0x7f, 0x8d, 0x9d, 0x2e, 0xac, 0x39, 0x0e, 0x58, 0x1f, 0xea, 0x09, 0x1c, 0xe2, 0x02, 0xba, 0x94}
+    };
+
+    secp256k1_rfc6979_hmac_sha256_t rng;
+    unsigned char out[32];
+
+    secp256k1_rfc6979_hmac_sha256_initialize(&rng, key1, 32, msg1, 32);
+    for (int i = 0; i < 3; i++) {
+        secp256k1_rfc6979_hmac_sha256_generate(&rng, out, 32);
+        CHECK(memcmp(out, out1[i], 32) == 0);
     }
+    secp256k1_rfc6979_hmac_sha256_finalize(&rng);
+
+    secp256k1_rfc6979_hmac_sha256_initialize(&rng, key2, 32, msg2, 32);
+    for (int i = 0; i < 3; i++) {
+        secp256k1_rfc6979_hmac_sha256_generate(&rng, out, 32);
+        CHECK(memcmp(out, out2[i], 32) == 0);
+    }
+    secp256k1_rfc6979_hmac_sha256_finalize(&rng);
+}
+
+/***** NUM TESTS *****/
+
+#ifndef USE_NUM_NONE
+void random_num_negate(secp256k1_num_t *num) {
+    if (secp256k1_rand32() & 1)
+        secp256k1_num_negate(num);
+}
+
+void random_num_order_test(secp256k1_num_t *num) {
+    secp256k1_scalar_t sc;
+    random_scalar_order_test(&sc);
+    secp256k1_scalar_get_num(num, &sc);
+}
+
+void random_num_order(secp256k1_num_t *num) {
+    secp256k1_scalar_t sc;
+    random_scalar_order(&sc);
+    secp256k1_scalar_get_num(num, &sc);
 }
 
 void test_num_negate(void) {
@@ -229,82 +284,84 @@ void test_num_add_sub(void) {
 
 void run_num_smalltests(void) {
     for (int i=0; i<100*count; i++) {
-        test_num_copy_inc_cmp();
-        test_num_get_set_hex();
-        test_num_get_set_bin();
         test_num_negate();
         test_num_add_sub();
     }
-    run_num_int();
 }
+#endif
 
 /***** SCALAR TESTS *****/
 
-int secp256k1_scalar_eq(const secp256k1_scalar_t *s1, const secp256k1_scalar_t *s2) {
-    secp256k1_scalar_t t;
-    secp256k1_scalar_negate(&t, s2);
-    secp256k1_scalar_add(&t, &t, s1);
-    int ret = secp256k1_scalar_is_zero(&t);
-    return ret;
-}
-
 void scalar_test(void) {
     unsigned char c[32];
 
     /* Set 's' to a random scalar, with value 'snum'. */
-    secp256k1_rand256_test(c);
     secp256k1_scalar_t s;
-    secp256k1_scalar_set_b32(&s, c, NULL);
-    secp256k1_num_t snum;
-    secp256k1_num_set_bin(&snum, c, 32);
-    secp256k1_num_mod(&snum, &secp256k1_ge_consts->order);
+    random_scalar_order_test(&s);
 
     /* Set 's1' to a random scalar, with value 's1num'. */
-    secp256k1_rand256_test(c);
     secp256k1_scalar_t s1;
-    secp256k1_scalar_set_b32(&s1, c, NULL);
-    secp256k1_num_t s1num;
-    secp256k1_num_set_bin(&s1num, c, 32);
-    secp256k1_num_mod(&s1num, &secp256k1_ge_consts->order);
+    random_scalar_order_test(&s1);
 
     /* Set 's2' to a random scalar, with value 'snum2', and byte array representation 'c'. */
-    secp256k1_rand256_test(c);
     secp256k1_scalar_t s2;
-    int overflow = 0;
-    secp256k1_scalar_set_b32(&s2, c, &overflow);
-    secp256k1_num_t s2num;
-    secp256k1_num_set_bin(&s2num, c, 32);
-    secp256k1_num_mod(&s2num, &secp256k1_ge_consts->order);
+    random_scalar_order_test(&s2);
+    secp256k1_scalar_get_b32(c, &s2);
+
+#ifndef USE_NUM_NONE
+    secp256k1_num_t snum, s1num, s2num;
+    secp256k1_scalar_get_num(&snum, &s);
+    secp256k1_scalar_get_num(&s1num, &s1);
+    secp256k1_scalar_get_num(&s2num, &s2);
+
+    secp256k1_num_t order;
+    secp256k1_scalar_order_get_num(&order);
+    secp256k1_num_t half_order = order;
+    secp256k1_num_shift(&half_order, 1);
+#endif
 
     {
         /* Test that fetching groups of 4 bits from a scalar and recursing n(i)=16*n(i-1)+p(i) reconstructs it. */
-        secp256k1_num_t n, t, m;
-        secp256k1_num_set_int(&n, 0);
-        secp256k1_num_set_int(&m, 16);
+        secp256k1_scalar_t n;
+        secp256k1_scalar_set_int(&n, 0);
         for (int i = 0; i < 256; i += 4) {
-            secp256k1_num_set_int(&t, secp256k1_scalar_get_bits(&s, 256 - 4 - i, 4));
-            secp256k1_num_mul(&n, &n, &m);
-            secp256k1_num_add(&n, &n, &t);
+            secp256k1_scalar_t t;
+            secp256k1_scalar_set_int(&t, secp256k1_scalar_get_bits(&s, 256 - 4 - i, 4));
+            for (int j = 0; j < 4; j++) {
+                secp256k1_scalar_add(&n, &n, &n);
+            }
+            secp256k1_scalar_add(&n, &n, &t);
         }
-        CHECK(secp256k1_num_eq(&n, &snum));
+        CHECK(secp256k1_scalar_eq(&n, &s));
     }
 
     {
-        /* Test that get_b32 returns the same as get_bin on the number. */
-        unsigned char r1[32];
-        secp256k1_scalar_get_b32(r1, &s2);
-        unsigned char r2[32];
-        secp256k1_num_get_bin(r2, 32, &s2num);
-        CHECK(memcmp(r1, r2, 32) == 0);
-        /* If no overflow occurred when assigning, it should also be equal to the original byte array. */
-        CHECK((memcmp(r1, c, 32) == 0) == (overflow == 0));
+        /* Test that fetching groups of randomly-sized bits from a scalar and recursing n(i)=b*n(i-1)+p(i) reconstructs it. */
+        secp256k1_scalar_t n;
+        secp256k1_scalar_set_int(&n, 0);
+        int i = 0;
+        while (i < 256) {
+            int now = (secp256k1_rand32() % 15) + 1;
+            if (now + i > 256) {
+                now = 256 - i;
+            }
+            secp256k1_scalar_t t;
+            secp256k1_scalar_set_int(&t, secp256k1_scalar_get_bits_var(&s, 256 - now - i, now));
+            for (int j = 0; j < now; j++) {
+                secp256k1_scalar_add(&n, &n, &n);
+            }
+            secp256k1_scalar_add(&n, &n, &t);
+            i += now;
+        }
+        CHECK(secp256k1_scalar_eq(&n, &s));
     }
 
+#ifndef USE_NUM_NONE
     {
         /* Test that adding the scalars together is equal to adding their numbers together modulo the order. */
         secp256k1_num_t rnum;
         secp256k1_num_add(&rnum, &snum, &s2num);
-        secp256k1_num_mod(&rnum, &secp256k1_ge_consts->order);
+        secp256k1_num_mod(&rnum, &order);
         secp256k1_scalar_t r;
         secp256k1_scalar_add(&r, &s, &s2);
         secp256k1_num_t r2num;
@@ -316,7 +373,7 @@ void scalar_test(void) {
         /* Test that multipying the scalars is equal to multiplying their numbers modulo the order. */
         secp256k1_num_t rnum;
         secp256k1_num_mul(&rnum, &snum, &s2num);
-        secp256k1_num_mod(&rnum, &secp256k1_ge_consts->order);
+        secp256k1_num_mod(&rnum, &order);
         secp256k1_scalar_t r;
         secp256k1_scalar_mul(&r, &s, &s2);
         secp256k1_num_t r2num;
@@ -333,14 +390,14 @@ void scalar_test(void) {
         /* Check that comparison with zero matches comparison with zero on the number. */
         CHECK(secp256k1_num_is_zero(&snum) == secp256k1_scalar_is_zero(&s));
         /* Check that comparison with the half order is equal to testing for high scalar. */
-        CHECK(secp256k1_scalar_is_high(&s) == (secp256k1_num_cmp(&snum, &secp256k1_ge_consts->half_order) > 0));
+        CHECK(secp256k1_scalar_is_high(&s) == (secp256k1_num_cmp(&snum, &half_order) > 0));
         secp256k1_scalar_t neg;
         secp256k1_scalar_negate(&neg, &s);
         secp256k1_num_t negnum;
-        secp256k1_num_sub(&negnum, &secp256k1_ge_consts->order, &snum);
-        secp256k1_num_mod(&negnum, &secp256k1_ge_consts->order);
+        secp256k1_num_sub(&negnum, &order, &snum);
+        secp256k1_num_mod(&negnum, &order);
         /* Check that comparison with the half order is equal to testing for high scalar after negation. */
-        CHECK(secp256k1_scalar_is_high(&neg) == (secp256k1_num_cmp(&negnum, &secp256k1_ge_consts->half_order) > 0));
+        CHECK(secp256k1_scalar_is_high(&neg) == (secp256k1_num_cmp(&negnum, &half_order) > 0));
         /* Negating should change the high property, unless the value was already zero. */
         CHECK((secp256k1_scalar_is_high(&s) == secp256k1_scalar_is_high(&neg)) == secp256k1_scalar_is_zero(&s));
         secp256k1_num_t negnum2;
@@ -356,15 +413,36 @@ void scalar_test(void) {
     }
 
     {
+        /* Test secp256k1_scalar_mul_shift_var. */
+        secp256k1_scalar_t r;
+        unsigned int shift = 256 + (secp256k1_rand32() % 257);
+        secp256k1_scalar_mul_shift_var(&r, &s1, &s2, shift);
+        secp256k1_num_t rnum;
+        secp256k1_num_mul(&rnum, &s1num, &s2num);
+        secp256k1_num_shift(&rnum, shift - 1);
+        secp256k1_num_t one;
+        unsigned char cone[1] = {0x01};
+        secp256k1_num_set_bin(&one, cone, 1);
+        secp256k1_num_add(&rnum, &rnum, &one);
+        secp256k1_num_shift(&rnum, 1);
+        secp256k1_num_t rnum2;
+        secp256k1_scalar_get_num(&rnum2, &r);
+        CHECK(secp256k1_num_eq(&rnum, &rnum2));
+    }
+#endif
+
+    {
         /* Test that scalar inverses are equal to the inverse of their number modulo the order. */
         if (!secp256k1_scalar_is_zero(&s)) {
             secp256k1_scalar_t inv;
             secp256k1_scalar_inverse(&inv, &s);
+#ifndef USE_NUM_NONE
             secp256k1_num_t invnum;
-            secp256k1_num_mod_inverse(&invnum, &snum, &secp256k1_ge_consts->order);
+            secp256k1_num_mod_inverse(&invnum, &snum, &order);
             secp256k1_num_t invnum2;
             secp256k1_scalar_get_num(&invnum2, &inv);
             CHECK(secp256k1_num_eq(&invnum, &invnum2));
+#endif
             secp256k1_scalar_mul(&inv, &inv, &s);
             /* Multiplying a scalar with its inverse must result in one. */
             CHECK(secp256k1_scalar_is_one(&inv));
@@ -383,6 +461,23 @@ void scalar_test(void) {
     }
 
     {
+        /* Test add_bit. */
+        int bit = secp256k1_rand32() % 256;
+        secp256k1_scalar_t b;
+        secp256k1_scalar_set_int(&b, 1);
+        CHECK(secp256k1_scalar_is_one(&b));
+        for (int i = 0; i < bit; i++) {
+            secp256k1_scalar_add(&b, &b, &b);
+        }
+        secp256k1_scalar_t r1 = s1, r2 = s1;
+        if (!secp256k1_scalar_add(&r1, &r1, &b)) {
+            /* No overflow happened. */
+            secp256k1_scalar_add_bit(&r2, bit);
+            CHECK(secp256k1_scalar_eq(&r1, &r2));
+        }
+    }
+
+    {
         /* Test commutativity of mul. */
         secp256k1_scalar_t r1, r2;
         secp256k1_scalar_mul(&r1, &s1, &s2);
@@ -428,20 +523,76 @@ void scalar_test(void) {
         secp256k1_scalar_mul(&r2, &s1, &s1);
         CHECK(secp256k1_scalar_eq(&r1, &r2));
     }
+
+    {
+        /* Test multiplicative identity. */
+        secp256k1_scalar_t r1, v1;
+        secp256k1_scalar_set_int(&v1,1);
+        secp256k1_scalar_mul(&r1, &s1, &v1);
+        CHECK(secp256k1_scalar_eq(&r1, &s1));
+    }
+
+    {
+        /* Test additive identity. */
+        secp256k1_scalar_t r1, v0;
+        secp256k1_scalar_set_int(&v0,0);
+        secp256k1_scalar_add(&r1, &s1, &v0);
+        CHECK(secp256k1_scalar_eq(&r1, &s1));
+    }
+
+    {
+        /* Test zero product property. */
+        secp256k1_scalar_t r1, v0;
+        secp256k1_scalar_set_int(&v0,0);
+        secp256k1_scalar_mul(&r1, &s1, &v0);
+        CHECK(secp256k1_scalar_eq(&r1, &v0));
+    }
+
 }
 
 void run_scalar_tests(void) {
     for (int i = 0; i < 128 * count; i++) {
         scalar_test();
     }
+
+    {
+        /* (-1)+1 should be zero. */
+        secp256k1_scalar_t s, o;
+        secp256k1_scalar_set_int(&s, 1);
+        CHECK(secp256k1_scalar_is_one(&s));
+        secp256k1_scalar_negate(&o, &s);
+        secp256k1_scalar_add(&o, &o, &s);
+        CHECK(secp256k1_scalar_is_zero(&o));
+        secp256k1_scalar_negate(&o, &o);
+        CHECK(secp256k1_scalar_is_zero(&o));
+    }
+
+#ifndef USE_NUM_NONE
+    {
+        /* A scalar with value of the curve order should be 0. */
+        secp256k1_num_t order;
+        secp256k1_scalar_order_get_num(&order);
+        unsigned char bin[32];
+        secp256k1_num_get_bin(bin, 32, &order);
+        secp256k1_scalar_t zero;
+        int overflow = 0;
+        secp256k1_scalar_set_b32(&zero, bin, &overflow);
+        CHECK(overflow == 1);
+        CHECK(secp256k1_scalar_is_zero(&zero));
+    }
+#endif
 }
 
 /***** FIELD TESTS *****/
 
 void random_fe(secp256k1_fe_t *x) {
     unsigned char bin[32];
-    secp256k1_rand256(bin);
-    secp256k1_fe_set_b32(x, bin);
+    do {
+        secp256k1_rand256(bin);
+        if (secp256k1_fe_set_b32(x, bin)) {
+            return;
+        }
+    } while(1);
 }
 
 void random_fe_non_zero(secp256k1_fe_t *nz) {
@@ -459,15 +610,15 @@ void random_fe_non_zero(secp256k1_fe_t *nz) {
 void random_fe_non_square(secp256k1_fe_t *ns) {
     random_fe_non_zero(ns);
     secp256k1_fe_t r;
-    if (secp256k1_fe_sqrt(&r, ns)) {
+    if (secp256k1_fe_sqrt_var(&r, ns)) {
         secp256k1_fe_negate(ns, ns, 1);
     }
 }
 
 int check_fe_equal(const secp256k1_fe_t *a, const secp256k1_fe_t *b) {
-    secp256k1_fe_t an = *a; secp256k1_fe_normalize(&an);
-    secp256k1_fe_t bn = *b; secp256k1_fe_normalize(&bn);
-    return secp256k1_fe_equal(&an, &bn);
+    secp256k1_fe_t an = *a; secp256k1_fe_normalize_weak(&an);
+    secp256k1_fe_t bn = *b; secp256k1_fe_normalize_var(&bn);
+    return secp256k1_fe_equal_var(&an, &bn);
 }
 
 int check_fe_inverse(const secp256k1_fe_t *a, const secp256k1_fe_t *ai) {
@@ -476,6 +627,55 @@ int check_fe_inverse(const secp256k1_fe_t *a, const secp256k1_fe_t *ai) {
     return check_fe_equal(&x, &one);
 }
 
+void run_field_misc(void) {
+    const unsigned char f32_5[32] = {
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05,
+    };
+    secp256k1_fe_t x;
+    secp256k1_fe_t y;
+    secp256k1_fe_t z;
+    secp256k1_fe_t q;
+    secp256k1_fe_t fe5;
+    CHECK(secp256k1_fe_set_b32(&fe5, f32_5));
+    for (int i=0; i<5*count; i++) {
+        random_fe(&x);
+        random_fe_non_zero(&y);
+        /* Test the fe equality and comparison operations. */
+        CHECK(secp256k1_fe_cmp_var(&x, &x) == 0);
+        CHECK(secp256k1_fe_equal_var(&x, &x));
+        z = x;
+        secp256k1_fe_add(&z,&y);
+        secp256k1_fe_normalize(&z);
+        /* Test the conditional move. */
+        secp256k1_fe_cmov(&z, &x, 0);
+        CHECK(secp256k1_fe_equal_var(&x, &z) == 0);
+        CHECK(secp256k1_fe_cmp_var(&x, &z) != 0);
+        secp256k1_fe_cmov(&y, &x, 1);
+        CHECK(secp256k1_fe_equal_var(&x, &y));
+        /* Test that mul_int, mul, and add agree. */
+        secp256k1_fe_add(&y, &x);
+        secp256k1_fe_add(&y, &x);
+        z = x;
+        secp256k1_fe_mul_int(&z, 3);
+        CHECK(check_fe_equal(&y, &z));
+        secp256k1_fe_add(&y, &x);
+        secp256k1_fe_add(&z, &x);
+        CHECK(check_fe_equal(&z, &y));
+        z = x;
+        secp256k1_fe_mul_int(&z, 5);
+        secp256k1_fe_mul(&q, &x, &fe5);
+        CHECK(check_fe_equal(&z, &q));
+        secp256k1_fe_negate(&x, &x, 1);
+        secp256k1_fe_add(&z, &x);
+        secp256k1_fe_add(&q, &x);
+        CHECK(check_fe_equal(&y, &z));
+        CHECK(check_fe_equal(&q, &y));
+    }
+}
+
 void run_field_inv(void) {
     secp256k1_fe_t x, xi, xii;
     for (int i=0; i<10*count; i++) {
@@ -498,23 +698,6 @@ void run_field_inv_var(void) {
     }
 }
 
-void run_field_inv_all(void) {
-    secp256k1_fe_t x[16], xi[16], xii[16];
-    /* Check it's safe to call for 0 elements */
-    secp256k1_fe_inv_all(0, xi, x);
-    for (int i=0; i<count; i++) {
-        size_t len = (secp256k1_rand32() & 15) + 1;
-        for (size_t j=0; j<len; j++)
-            random_fe_non_zero(&x[j]);
-        secp256k1_fe_inv_all(len, xi, x);
-        for (size_t j=0; j<len; j++)
-            CHECK(check_fe_inverse(&x[j], &xi[j]));
-        secp256k1_fe_inv_all(len, xii, xi);
-        for (size_t j=0; j<len; j++)
-            CHECK(check_fe_equal(&x[j], &xii[j]));
-    }
-}
-
 void run_field_inv_all_var(void) {
     secp256k1_fe_t x[16], xi[16], xii[16];
     /* Check it's safe to call for 0 elements */
@@ -549,7 +732,7 @@ void run_sqr(void) {
 
 void test_sqrt(const secp256k1_fe_t *a, const secp256k1_fe_t *k) {
     secp256k1_fe_t r1, r2;
-    int v = secp256k1_fe_sqrt(&r1, a);
+    int v = secp256k1_fe_sqrt_var(&r1, a);
     CHECK((v == 0) == (k == NULL));
 
     if (k != NULL) {
@@ -595,100 +778,148 @@ void run_sqrt(void) {
 
 /***** GROUP TESTS *****/
 
-int ge_equals_ge(const secp256k1_ge_t *a, const secp256k1_ge_t *b) {
-    if (a->infinity && b->infinity)
-        return 1;
-    return check_fe_equal(&a->x, &b->x) && check_fe_equal(&a->y, &b->y);
+void ge_equals_ge(const secp256k1_ge_t *a, const secp256k1_ge_t *b) {
+    CHECK(a->infinity == b->infinity);
+    if (a->infinity)
+        return;
+    CHECK(secp256k1_fe_equal_var(&a->x, &b->x));
+    CHECK(secp256k1_fe_equal_var(&b->y, &b->y));
 }
 
 void ge_equals_gej(const secp256k1_ge_t *a, const secp256k1_gej_t *b) {
-    secp256k1_ge_t bb;
-    secp256k1_gej_t bj = *b;
-    secp256k1_ge_set_gej_var(&bb, &bj);
-    CHECK(ge_equals_ge(a, &bb));
-}
-
-void gej_equals_gej(const secp256k1_gej_t *a, const secp256k1_gej_t *b) {
-    secp256k1_ge_t aa, bb;
-    secp256k1_gej_t aj = *a, bj = *b;
-    secp256k1_ge_set_gej_var(&aa, &aj);
-    secp256k1_ge_set_gej_var(&bb, &bj);
-    CHECK(ge_equals_ge(&aa, &bb));
+    CHECK(a->infinity == b->infinity);
+    if (a->infinity)
+        return;
+    /* Check a.x * b.z^2 == b.x && a.y * b.z^3 == b.y, to avoid inverses. */
+    secp256k1_fe_t z2s;
+    secp256k1_fe_sqr(&z2s, &b->z);
+    secp256k1_fe_t u1, u2, s1, s2;
+    secp256k1_fe_mul(&u1, &a->x, &z2s);
+    u2 = b->x; secp256k1_fe_normalize_weak(&u2);
+    secp256k1_fe_mul(&s1, &a->y, &z2s); secp256k1_fe_mul(&s1, &s1, &b->z);
+    s2 = b->y; secp256k1_fe_normalize_weak(&s2);
+    CHECK(secp256k1_fe_equal_var(&u1, &u2));
+    CHECK(secp256k1_fe_equal_var(&s1, &s2));
 }
 
 void test_ge(void) {
-    secp256k1_ge_t a, b, i, n;
-    random_group_element_test(&a);
-    random_group_element_test(&b);
-    n = a;
-    secp256k1_fe_normalize(&a.y);
-    secp256k1_fe_negate(&n.y, &a.y, 1);
-    secp256k1_ge_set_infinity(&i);
-    random_field_element_magnitude(&a.x);
-    random_field_element_magnitude(&a.y);
-    random_field_element_magnitude(&b.x);
-    random_field_element_magnitude(&b.y);
-    random_field_element_magnitude(&n.x);
-    random_field_element_magnitude(&n.y);
-
-    secp256k1_gej_t aj, bj, ij, nj;
-    random_group_element_jacobian_test(&aj, &a);
-    random_group_element_jacobian_test(&bj, &b);
-    secp256k1_gej_set_infinity(&ij);
-    random_group_element_jacobian_test(&nj, &n);
-    random_field_element_magnitude(&aj.x);
-    random_field_element_magnitude(&aj.y);
-    random_field_element_magnitude(&aj.z);
-    random_field_element_magnitude(&bj.x);
-    random_field_element_magnitude(&bj.y);
-    random_field_element_magnitude(&bj.z);
-    random_field_element_magnitude(&nj.x);
-    random_field_element_magnitude(&nj.y);
-    random_field_element_magnitude(&nj.z);
-
-    /* gej + gej adds */
-    secp256k1_gej_t aaj; secp256k1_gej_add_var(&aaj, &aj, &aj);
-    secp256k1_gej_t abj; secp256k1_gej_add_var(&abj, &aj, &bj);
-    secp256k1_gej_t aij; secp256k1_gej_add_var(&aij, &aj, &ij);
-    secp256k1_gej_t anj; secp256k1_gej_add_var(&anj, &aj, &nj);
-    secp256k1_gej_t iaj; secp256k1_gej_add_var(&iaj, &ij, &aj);
-    secp256k1_gej_t iij; secp256k1_gej_add_var(&iij, &ij, &ij);
-
-    /* gej + ge adds */
-    secp256k1_gej_t aa; secp256k1_gej_add_ge_var(&aa, &aj, &a);
-    secp256k1_gej_t ab; secp256k1_gej_add_ge_var(&ab, &aj, &b);
-    secp256k1_gej_t ai; secp256k1_gej_add_ge_var(&ai, &aj, &i);
-    secp256k1_gej_t an; secp256k1_gej_add_ge_var(&an, &aj, &n);
-    secp256k1_gej_t ia; secp256k1_gej_add_ge_var(&ia, &ij, &a);
-    secp256k1_gej_t ii; secp256k1_gej_add_ge_var(&ii, &ij, &i);
-
-    /* const gej + ge adds */
-    secp256k1_gej_t aac; secp256k1_gej_add_ge(&aac, &aj, &a);
-    secp256k1_gej_t abc; secp256k1_gej_add_ge(&abc, &aj, &b);
-    secp256k1_gej_t anc; secp256k1_gej_add_ge(&anc, &aj, &n);
-    secp256k1_gej_t iac; secp256k1_gej_add_ge(&iac, &ij, &a);
-
-    CHECK(secp256k1_gej_is_infinity(&an));
-    CHECK(secp256k1_gej_is_infinity(&anj));
-    CHECK(secp256k1_gej_is_infinity(&anc));
-    gej_equals_gej(&aa, &aaj);
-    gej_equals_gej(&aa, &aac);
-    gej_equals_gej(&ab, &abj);
-    gej_equals_gej(&ab, &abc);
-    gej_equals_gej(&an, &anj);
-    gej_equals_gej(&an, &anc);
-    gej_equals_gej(&ia, &iaj);
-    gej_equals_gej(&ai, &aij);
-    gej_equals_gej(&ii, &iij);
-    ge_equals_gej(&a, &ai);
-    ge_equals_gej(&a, &ai);
-    ge_equals_gej(&a, &iaj);
-    ge_equals_gej(&a, &iaj);
-    ge_equals_gej(&a, &iac);
+    int runs = 4;
+    /* Points: (infinity, p1, p1, -p1, -p1, p2, p2, -p2, -p2, p3, p3, -p3, -p3, p4, p4, -p4, -p4).
+     * The second in each pair of identical points uses a random Z coordinate in the Jacobian form.
+     * All magnitudes are randomized.
+     * All 17*17 combinations of points are added to eachother, using all applicable methods.
+     */
+    secp256k1_ge_t *ge = malloc(sizeof(secp256k1_ge_t) * (1 + 4 * runs));
+    secp256k1_gej_t *gej = malloc(sizeof(secp256k1_gej_t) * (1 + 4 * runs));
+    secp256k1_gej_set_infinity(&gej[0]);
+    secp256k1_ge_clear(&ge[0]);
+    secp256k1_ge_set_gej_var(&ge[0], &gej[0]);
+    for (int i = 0; i < runs; i++) {
+        secp256k1_ge_t g;
+        random_group_element_test(&g);
+        ge[1 + 4 * i] = g;
+        ge[2 + 4 * i] = g;
+        secp256k1_ge_neg(&ge[3 + 4 * i], &g);
+        secp256k1_ge_neg(&ge[4 + 4 * i], &g);
+        secp256k1_gej_set_ge(&gej[1 + 4 * i], &ge[1 + 4 * i]);
+        random_group_element_jacobian_test(&gej[2 + 4 * i], &ge[2 + 4 * i]);
+        secp256k1_gej_set_ge(&gej[3 + 4 * i], &ge[3 + 4 * i]);
+        random_group_element_jacobian_test(&gej[4 + 4 * i], &ge[4 + 4 * i]);
+        for (int j = 0; j < 4; j++) {
+            random_field_element_magnitude(&ge[1 + j + 4 * i].x);
+            random_field_element_magnitude(&ge[1 + j + 4 * i].y);
+            random_field_element_magnitude(&gej[1 + j + 4 * i].x);
+            random_field_element_magnitude(&gej[1 + j + 4 * i].y);
+            random_field_element_magnitude(&gej[1 + j + 4 * i].z);
+        }
+    }
+
+    for (int i1 = 0; i1 < 1 + 4 * runs; i1++) {
+        for (int i2 = 0; i2 < 1 + 4 * runs; i2++) {
+            /* Compute reference result using gej + gej (var). */
+            secp256k1_gej_t refj, resj;
+            secp256k1_ge_t ref;
+            secp256k1_gej_add_var(&refj, &gej[i1], &gej[i2]);
+            secp256k1_ge_set_gej_var(&ref, &refj);
+
+            /* Test gej + ge (var). */
+            secp256k1_gej_add_ge_var(&resj, &gej[i1], &ge[i2]);
+            ge_equals_gej(&ref, &resj);
+
+            /* Test gej + ge (const). */
+            if (i2 != 0) {
+                /* secp256k1_gej_add_ge does not support its second argument being infinity. */
+                secp256k1_gej_add_ge(&resj, &gej[i1], &ge[i2]);
+                ge_equals_gej(&ref, &resj);
+            }
+
+            /* Test doubling (var). */
+            if ((i1 == 0 && i2 == 0) || ((i1 + 3)/4 == (i2 + 3)/4 && ((i1 + 3)%4)/2 == ((i2 + 3)%4)/2)) {
+                /* Normal doubling. */
+                secp256k1_gej_double_var(&resj, &gej[i1]);
+                ge_equals_gej(&ref, &resj);
+                secp256k1_gej_double_var(&resj, &gej[i2]);
+                ge_equals_gej(&ref, &resj);
+            }
+
+            /* Test adding opposites. */
+            if ((i1 == 0 && i2 == 0) || ((i1 + 3)/4 == (i2 + 3)/4 && ((i1 + 3)%4)/2 != ((i2 + 3)%4)/2)) {
+                CHECK(secp256k1_ge_is_infinity(&ref));
+            }
+
+            /* Test adding infinity. */
+            if (i1 == 0) {
+                CHECK(secp256k1_ge_is_infinity(&ge[i1]));
+                CHECK(secp256k1_gej_is_infinity(&gej[i1]));
+                ge_equals_gej(&ref, &gej[i2]);
+            }
+            if (i2 == 0) {
+                CHECK(secp256k1_ge_is_infinity(&ge[i2]));
+                CHECK(secp256k1_gej_is_infinity(&gej[i2]));
+                ge_equals_gej(&ref, &gej[i1]);
+            }
+        }
+    }
+
+    /* Test adding all points together in random order equals infinity. */
+    {
+        secp256k1_gej_t *gej_shuffled = malloc((4 * runs + 1) * sizeof(secp256k1_gej_t));
+        for (int i = 0; i < 4 * runs + 1; i++) {
+            gej_shuffled[i] = gej[i];
+        }
+        for (int i = 0; i < 4 * runs + 1; i++) {
+            int swap = i + secp256k1_rand32() % (4 * runs + 1 - i);
+            if (swap != i) {
+                secp256k1_gej_t t = gej_shuffled[i];
+                gej_shuffled[i] = gej_shuffled[swap];
+                gej_shuffled[swap] = t;
+            }
+        }
+        secp256k1_gej_t sum;
+        secp256k1_gej_set_infinity(&sum);
+        for (int i = 0; i < 4 * runs + 1; i++) {
+            secp256k1_gej_add_var(&sum, &sum, &gej_shuffled[i]);
+        }
+        CHECK(secp256k1_gej_is_infinity(&sum));
+        free(gej_shuffled);
+    }
+
+    /* Test batch gej -> ge conversion. */
+    {
+        secp256k1_ge_t *ge_set_all = malloc((4 * runs + 1) * sizeof(secp256k1_ge_t));
+        secp256k1_ge_set_all_gej_var(4 * runs + 1, ge_set_all, gej);
+        for (int i = 0; i < 4 * runs + 1; i++) {
+            ge_equals_gej(&ge_set_all[i], &gej[i]);
+        }
+        free(ge_set_all);
+    }
+
+    free(ge);
+    free(gej);
 }
 
 void run_ge(void) {
-    for (int i = 0; i < 2000*count; i++) {
+    for (int i = 0; i < count * 32; i++) {
         test_ge();
     }
 }
@@ -697,39 +928,51 @@ void run_ge(void) {
 
 void run_ecmult_chain(void) {
     /* random starting point A (on the curve) */
-    secp256k1_fe_t ax; secp256k1_fe_set_hex(&ax, "8b30bbe9ae2a990696b22f670709dff3727fd8bc04d3362c6c7bf458e2846004", 64);
-    secp256k1_fe_t ay; secp256k1_fe_set_hex(&ay, "a357ae915c4a65281309edf20504740f0eb3343990216b4f81063cb65f2f7e0f", 64);
+    secp256k1_fe_t ax; VERIFY_CHECK(secp256k1_fe_set_hex(&ax, "8b30bbe9ae2a990696b22f670709dff3727fd8bc04d3362c6c7bf458e2846004", 64));
+    secp256k1_fe_t ay; VERIFY_CHECK(secp256k1_fe_set_hex(&ay, "a357ae915c4a65281309edf20504740f0eb3343990216b4f81063cb65f2f7e0f", 64));
     secp256k1_gej_t a; secp256k1_gej_set_xy(&a, &ax, &ay);
     /* two random initial factors xn and gn */
-    secp256k1_num_t xn;
-    secp256k1_num_set_hex(&xn, "84cc5452f7fde1edb4d38a8ce9b1b84ccef31f146e569be9705d357a42985407", 64);
-    secp256k1_num_t gn;
-    secp256k1_num_set_hex(&gn, "a1e58d22553dcd42b23980625d4c57a96e9323d42b3152e5ca2c3990edc7c9de", 64);
+    static const unsigned char xni[32] = {
+        0x84, 0xcc, 0x54, 0x52, 0xf7, 0xfd, 0xe1, 0xed,
+        0xb4, 0xd3, 0x8a, 0x8c, 0xe9, 0xb1, 0xb8, 0x4c,
+        0xce, 0xf3, 0x1f, 0x14, 0x6e, 0x56, 0x9b, 0xe9,
+        0x70, 0x5d, 0x35, 0x7a, 0x42, 0x98, 0x54, 0x07
+    };
+    secp256k1_scalar_t xn;
+    secp256k1_scalar_set_b32(&xn, xni, NULL);
+    static const unsigned char gni[32] = {
+        0xa1, 0xe5, 0x8d, 0x22, 0x55, 0x3d, 0xcd, 0x42,
+        0xb2, 0x39, 0x80, 0x62, 0x5d, 0x4c, 0x57, 0xa9,
+        0x6e, 0x93, 0x23, 0xd4, 0x2b, 0x31, 0x52, 0xe5,
+        0xca, 0x2c, 0x39, 0x90, 0xed, 0xc7, 0xc9, 0xde
+    };
+    secp256k1_scalar_t gn;
+    secp256k1_scalar_set_b32(&gn, gni, NULL);
     /* two small multipliers to be applied to xn and gn in every iteration: */
-    secp256k1_num_t xf;
-    secp256k1_num_set_hex(&xf, "1337", 4);
-    secp256k1_num_t gf;
-    secp256k1_num_set_hex(&gf, "7113", 4);
+    static const unsigned char xfi[32] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0x13,0x37};
+    secp256k1_scalar_t xf;
+    secp256k1_scalar_set_b32(&xf, xfi, NULL);
+    static const unsigned char gfi[32] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0x71,0x13};
+    secp256k1_scalar_t gf;
+    secp256k1_scalar_set_b32(&gf, gfi, NULL);
     /* accumulators with the resulting coefficients to A and G */
-    secp256k1_num_t ae;
-    secp256k1_num_set_int(&ae, 1);
-    secp256k1_num_t ge;
-    secp256k1_num_set_int(&ge, 0);
+    secp256k1_scalar_t ae;
+    secp256k1_scalar_set_int(&ae, 1);
+    secp256k1_scalar_t ge;
+    secp256k1_scalar_set_int(&ge, 0);
     /* the point being computed */
     secp256k1_gej_t x = a;
-    const secp256k1_num_t *order = &secp256k1_ge_consts->order;
     for (int i=0; i<200*count; i++) {
         /* in each iteration, compute X = xn*X + gn*G; */
         secp256k1_ecmult(&x, &x, &xn, &gn);
         /* also compute ae and ge: the actual accumulated factors for A and G */
         /* if X was (ae*A+ge*G), xn*X + gn*G results in (xn*ae*A + (xn*ge+gn)*G) */
-        secp256k1_num_mod_mul(&ae, &ae, &xn, order);
-        secp256k1_num_mod_mul(&ge, &ge, &xn, order);
-        secp256k1_num_add(&ge, &ge, &gn);
-        secp256k1_num_mod(&ge, order);
+        secp256k1_scalar_mul(&ae, &ae, &xn);
+        secp256k1_scalar_mul(&ge, &ge, &xn);
+        secp256k1_scalar_add(&ge, &ge, &gn);
         /* modify xn and gn */
-        secp256k1_num_mod_mul(&xn, &xn, &xf, order);
-        secp256k1_num_mod_mul(&gn, &gn, &gf, order);
+        secp256k1_scalar_mul(&xn, &xn, &xf);
+        secp256k1_scalar_mul(&gn, &gn, &gf);
 
         /* verify */
         if (i == 19999) {
@@ -749,42 +992,61 @@ void run_ecmult_chain(void) {
 }
 
 void test_point_times_order(const secp256k1_gej_t *point) {
-    /* multiplying a point by the order results in O */
-    const secp256k1_num_t *order = &secp256k1_ge_consts->order;
-    secp256k1_num_t zero;
-    secp256k1_num_set_int(&zero, 0);
-    secp256k1_gej_t res;
-    secp256k1_ecmult(&res, point, order, order); /* calc res = order * point + order * G; */
-    CHECK(secp256k1_gej_is_infinity(&res));
+    unsigned char pub[65];
+    /* X * (point + G) + (order-X) * (pointer + G) = 0 */
+    secp256k1_scalar_t x;
+    random_scalar_order_test(&x);
+    secp256k1_scalar_t nx;
+    secp256k1_scalar_negate(&nx, &x);
+    secp256k1_gej_t res1, res2;
+    secp256k1_ecmult(&res1, point, &x, &x); /* calc res1 = x * point + x * G; */
+    secp256k1_ecmult(&res2, point, &nx, &nx); /* calc res2 = (order - x) * point + (order - x) * G; */
+    secp256k1_gej_add_var(&res1, &res1, &res2);
+    CHECK(secp256k1_gej_is_infinity(&res1));
+    CHECK(secp256k1_gej_is_valid_var(&res1) == 0);
+    secp256k1_ge_t res3;
+    secp256k1_ge_set_gej(&res3, &res1);
+    CHECK(secp256k1_ge_is_infinity(&res3));
+    CHECK(secp256k1_ge_is_valid_var(&res3) == 0);
+    int psize = 65;
+    CHECK(secp256k1_eckey_pubkey_serialize(&res3, pub, &psize, 0) == 0);
+    psize = 65;
+    CHECK(secp256k1_eckey_pubkey_serialize(&res3, pub, &psize, 1) == 0);
 }
 
 void run_point_times_order(void) {
-    secp256k1_fe_t x; secp256k1_fe_set_hex(&x, "02", 2);
+    secp256k1_fe_t x; VERIFY_CHECK(secp256k1_fe_set_hex(&x, "02", 2));
     for (int i=0; i<500; i++) {
         secp256k1_ge_t p;
-        if (secp256k1_ge_set_xo(&p, &x, 1)) {
-            CHECK(secp256k1_ge_is_valid(&p));
+        if (secp256k1_ge_set_xo_var(&p, &x, 1)) {
+            CHECK(secp256k1_ge_is_valid_var(&p));
             secp256k1_gej_t j;
             secp256k1_gej_set_ge(&j, &p);
-            CHECK(secp256k1_gej_is_valid(&j));
+            CHECK(secp256k1_gej_is_valid_var(&j));
             test_point_times_order(&j);
         }
         secp256k1_fe_sqr(&x, &x);
     }
-    char c[65]; int cl=65;
+    char c[65];
+    int cl = 1;
+    c[1] = 123;
+    secp256k1_fe_get_hex(c, &cl, &x); /* Check that fe_get_hex handles a too short input. */
+    CHECK(c[1] == 123);
+    cl = 65;
     secp256k1_fe_get_hex(c, &cl, &x);
     CHECK(strcmp(c, "7603CB59B0EF6C63FE6084792A0C378CDB3233A80F8A9A09A877DEAD31B38C45") == 0);
 }
 
-void test_wnaf(const secp256k1_num_t *number, int w) {
-    secp256k1_num_t x, two, t;
-    secp256k1_num_set_int(&x, 0);
-    secp256k1_num_set_int(&two, 2);
-    int wnaf[257];
+void test_wnaf(const secp256k1_scalar_t *number, int w) {
+    secp256k1_scalar_t x, two, t;
+    secp256k1_scalar_set_int(&x, 0);
+    secp256k1_scalar_set_int(&two, 2);
+    int wnaf[256];
     int bits = secp256k1_ecmult_wnaf(wnaf, number, w);
+    CHECK(bits <= 256);
     int zeroes = -1;
     for (int i=bits-1; i>=0; i--) {
-        secp256k1_num_mul(&x, &x, &two);
+        secp256k1_scalar_mul(&x, &x, &two);
         int v = wnaf[i];
         if (v) {
             CHECK(zeroes == -1 || zeroes >= w-1); /* check that distance between non-zero elements is at least w-1 */
@@ -796,18 +1058,23 @@ void test_wnaf(const secp256k1_num_t *number, int w) {
             CHECK(zeroes != -1); /* check that no unnecessary zero padding exists */
             zeroes++;
         }
-        secp256k1_num_set_int(&t, v);
-        secp256k1_num_add(&x, &x, &t);
+        if (v >= 0) {
+            secp256k1_scalar_set_int(&t, v);
+        } else {
+            secp256k1_scalar_set_int(&t, -v);
+            secp256k1_scalar_negate(&t, &t);
+        }
+        secp256k1_scalar_add(&x, &x, &t);
     }
-    CHECK(secp256k1_num_eq(&x, number)); /* check that wnaf represents number */
+    CHECK(secp256k1_scalar_eq(&x, number)); /* check that wnaf represents number */
 }
 
 void run_wnaf(void) {
-    secp256k1_num_t n;
+    secp256k1_scalar_t n;
     for (int i=0; i<count; i++) {
-        random_num_order(&n);
+        random_scalar_order(&n);
         if (i % 1)
-            secp256k1_num_negate(&n);
+            secp256k1_scalar_negate(&n, &n);
         test_wnaf(&n, 4+(i%10));
     }
 }
@@ -820,18 +1087,22 @@ void random_sign(secp256k1_ecdsa_sig_t *sig, const secp256k1_scalar_t *key, cons
 }
 
 void test_ecdsa_sign_verify(void) {
+    int recid;
+    int getrec;
     secp256k1_scalar_t msg, key;
     random_scalar_order_test(&msg);
     random_scalar_order_test(&key);
     secp256k1_gej_t pubj; secp256k1_ecmult_gen(&pubj, &key);
     secp256k1_ge_t pub; secp256k1_ge_set_gej(&pub, &pubj);
     secp256k1_ecdsa_sig_t sig;
-    random_sign(&sig, &key, &msg, NULL);
-    secp256k1_num_t msg_num;
-    secp256k1_scalar_get_num(&msg_num, &msg);
-    CHECK(secp256k1_ecdsa_sig_verify(&sig, &pub, &msg_num));
-    secp256k1_num_inc(&msg_num);
-    CHECK(!secp256k1_ecdsa_sig_verify(&sig, &pub, &msg_num));
+    getrec = secp256k1_rand32()&1;
+    random_sign(&sig, &key, &msg, getrec?&recid:NULL);
+    if (getrec) CHECK(recid >= 0 && recid < 4);
+    CHECK(secp256k1_ecdsa_sig_verify(&sig, &pub, &msg));
+    secp256k1_scalar_t one;
+    secp256k1_scalar_set_int(&one, 1);
+    secp256k1_scalar_add(&msg, &msg, &one);
+    CHECK(!secp256k1_ecdsa_sig_verify(&sig, &pub, &msg));
 }
 
 void run_ecdsa_sign_verify(void) {
@@ -840,23 +1111,64 @@ void run_ecdsa_sign_verify(void) {
     }
 }
 
+/** Dummy nonce generation function that just uses a precomputed nonce, and fails if it is not accepted. Use only for testing. */
+static int precomputed_nonce_function(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, unsigned int counter, const void *data) {
+    (void)msg32;
+    (void)key32;
+    memcpy(nonce32, data, 32);
+    return (counter == 0);
+}
+
+static int nonce_function_test_fail(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, unsigned int counter, const void *data) {
+   /* Dummy nonce generator that has a fatal error on the first counter value. */
+   if (counter == 0) return 0;
+   return nonce_function_rfc6979(nonce32, msg32, key32, counter - 1, data);
+}
+
+static int nonce_function_test_retry(unsigned char *nonce32, const unsigned char *msg32, const unsigned char *key32, unsigned int counter, const void *data) {
+   /* Dummy nonce generator that produces unacceptable nonces for the first several counter values. */
+   if (counter < 3) {
+       memset(nonce32, counter==0 ? 0 : 255, 32);
+       if (counter == 2) nonce32[31]--;
+       return 1;
+   }
+   if (counter < 5) {
+       static const unsigned char order[] = {
+           0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+           0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,
+           0xBA,0xAE,0xDC,0xE6,0xAF,0x48,0xA0,0x3B,
+           0xBF,0xD2,0x5E,0x8C,0xD0,0x36,0x41,0x41
+       };
+       memcpy(nonce32, order, 32);
+       if (counter == 4) nonce32[31]++;
+       return 1;
+   }
+   /* Retry rate of 6979 is negligible esp. as we only call this in determinstic tests. */
+   /* If someone does fine a case where it retries for secp256k1, we'd like to know. */
+   if (counter > 5) return 0;
+   return nonce_function_rfc6979(nonce32, msg32, key32, counter - 5, data);
+}
+
 void test_ecdsa_end_to_end(void) {
     unsigned char privkey[32];
     unsigned char message[32];
 
     /* Generate a random key and message. */
     {
-        secp256k1_num_t msg, key;
-        random_num_order_test(&msg);
-        random_num_order_test(&key);
-        secp256k1_num_get_bin(privkey, 32, &key);
-        secp256k1_num_get_bin(message, 32, &msg);
+        secp256k1_scalar_t msg, key;
+        random_scalar_order_test(&msg);
+        random_scalar_order_test(&key);
+        secp256k1_scalar_get_b32(privkey, &key);
+        secp256k1_scalar_get_b32(message, &msg);
     }
 
     /* Construct and verify corresponding public key. */
     CHECK(secp256k1_ec_seckey_verify(privkey) == 1);
     unsigned char pubkey[65]; int pubkeylen = 65;
-    CHECK(secp256k1_ec_pubkey_create(pubkey, &pubkeylen, privkey, secp256k1_rand32() % 2) == 1);
+    CHECK(secp256k1_ec_pubkey_create(pubkey, &pubkeylen, privkey, (secp256k1_rand32() & 3) != 0) == 1);
+    if (secp256k1_rand32() & 1) {
+        CHECK(secp256k1_ec_pubkey_decompress(pubkey, &pubkeylen));
+    }
     CHECK(secp256k1_ec_pubkey_verify(pubkey, pubkeylen));
 
     /* Verify private key import and export. */
@@ -894,48 +1206,95 @@ void test_ecdsa_end_to_end(void) {
 
     /* Sign. */
     unsigned char signature[72]; int signaturelen = 72;
-    while(1) {
-        unsigned char rnd[32];
-        secp256k1_rand256_test(rnd);
-        if (secp256k1_ecdsa_sign(message, 32, signature, &signaturelen, privkey, rnd) == 1) {
-            break;
-        }
-    }
+    CHECK(secp256k1_ecdsa_sign(message, signature, &signaturelen, privkey, NULL, NULL) == 1);
     /* Verify. */
-    CHECK(secp256k1_ecdsa_verify(message, 32, signature, signaturelen, pubkey, pubkeylen) == 1);
+    CHECK(secp256k1_ecdsa_verify(message, signature, signaturelen, pubkey, pubkeylen) == 1);
     /* Destroy signature and verify again. */
     signature[signaturelen - 1 - secp256k1_rand32() % 20] += 1 + (secp256k1_rand32() % 255);
-    CHECK(secp256k1_ecdsa_verify(message, 32, signature, signaturelen, pubkey, pubkeylen) != 1);
+    CHECK(secp256k1_ecdsa_verify(message, signature, signaturelen, pubkey, pubkeylen) != 1);
 
     /* Compact sign. */
     unsigned char csignature[64]; int recid = 0;
-    while(1) {
-        unsigned char rnd[32];
-        secp256k1_rand256_test(rnd);
-        if (secp256k1_ecdsa_sign_compact(message, 32, csignature, privkey, rnd, &recid) == 1) {
-            break;
-        }
-    }
+    CHECK(secp256k1_ecdsa_sign_compact(message, csignature, privkey, NULL, NULL, &recid) == 1);
     /* Recover. */
     unsigned char recpubkey[65]; int recpubkeylen = 0;
-    CHECK(secp256k1_ecdsa_recover_compact(message, 32, csignature, recpubkey, &recpubkeylen, pubkeylen == 33, recid) == 1);
+    CHECK(secp256k1_ecdsa_recover_compact(message, csignature, recpubkey, &recpubkeylen, pubkeylen == 33, recid) == 1);
     CHECK(recpubkeylen == pubkeylen);
     CHECK(memcmp(pubkey, recpubkey, pubkeylen) == 0);
     /* Destroy signature and verify again. */
     csignature[secp256k1_rand32() % 64] += 1 + (secp256k1_rand32() % 255);
-    CHECK(secp256k1_ecdsa_recover_compact(message, 32, csignature, recpubkey, &recpubkeylen, pubkeylen == 33, recid) != 1 ||
+    CHECK(secp256k1_ecdsa_recover_compact(message, csignature, recpubkey, &recpubkeylen, pubkeylen == 33, recid) != 1 ||
           memcmp(pubkey, recpubkey, pubkeylen) != 0);
     CHECK(recpubkeylen == pubkeylen);
 
 }
 
+void test_random_pubkeys(void) {
+    unsigned char in[65];
+    /* Generate some randomly sized pubkeys. */
+    uint32_t r = secp256k1_rand32();
+    int len = (r & 3) == 0 ? 65 : 33;
+    r>>=2;
+    if ((r & 3) == 0) len = (r & 252) >> 3;
+    r>>=8;
+    if (len == 65) {
+      in[0] = (r & 2) ? 4 : (r & 1? 6 : 7);
+    } else {
+      in[0] = (r & 1) ? 2 : 3;
+    }
+    r>>=2;
+    if ((r & 7) == 0) in[0] = (r & 2040) >> 3;
+    r>>=11;
+    if (len > 1) secp256k1_rand256(&in[1]);
+    if (len > 33) secp256k1_rand256(&in[33]);
+    secp256k1_ge_t elem;
+    secp256k1_ge_t elem2;
+    if (secp256k1_eckey_pubkey_parse(&elem, in, len)) {
+        unsigned char out[65];
+        unsigned char firstb;
+        int res;
+        int size = len;
+        firstb = in[0];
+        /* If the pubkey can be parsed, it should round-trip... */
+        CHECK(secp256k1_eckey_pubkey_serialize(&elem, out, &size, len == 33));
+        CHECK(size == len);
+        CHECK(memcmp(&in[1], &out[1], len-1) == 0);
+        /* ... except for the type of hybrid inputs. */
+        if ((in[0] != 6) && (in[0] != 7)) CHECK(in[0] == out[0]);
+        size = 65;
+        CHECK(secp256k1_eckey_pubkey_serialize(&elem, in, &size, 0));
+        CHECK(size == 65);
+        CHECK(secp256k1_eckey_pubkey_parse(&elem2, in, size));
+        ge_equals_ge(&elem,&elem2);
+        /* Check that the X9.62 hybrid type is checked. */
+        in[0] = (r & 1) ? 6 : 7;
+        res = secp256k1_eckey_pubkey_parse(&elem2, in, size);
+        if (firstb == 2 || firstb == 3) {
+            if (in[0] == firstb + 4) CHECK(res);
+            else CHECK(!res);
+        }
+        if (res) {
+            ge_equals_ge(&elem,&elem2);
+            CHECK(secp256k1_eckey_pubkey_serialize(&elem, out, &size, 0));
+            CHECK(memcmp(&in[1], &out[1], 64) == 0);
+        }
+    }
+}
+
+void run_random_pubkeys(void) {
+    for (int i=0; i<10*count; i++) {
+        test_random_pubkeys();
+    }
+}
+
 void run_ecdsa_end_to_end(void) {
     for (int i=0; i<64*count; i++) {
         test_ecdsa_end_to_end();
     }
 }
 
-void test_ecdsa_infinity(void) {
+/* Tests several edge cases. */
+void test_ecdsa_edge_cases(void) {
     const unsigned char msg32[32] = {
         'T', 'h', 'i', 's', ' ', 'i', 's', ' ',
         'a', ' ', 'v', 'e', 'r', 'y', ' ', 's',
@@ -943,8 +1302,8 @@ void test_ecdsa_infinity(void) {
         's', 's', 'a', 'g', 'e', '.', '.', '.'
     };
     const unsigned char sig64[64] = {
-        // Generated by signing the above message with nonce 'This is the nonce we will use...'
-        // and secret key 0 (which is not valid), resulting in recid 0.
+        /* Generated by signing the above message with nonce 'This is the nonce we will use...'
+         * and secret key 0 (which is not valid), resulting in recid 0. */
         0x67, 0xCB, 0x28, 0x5F, 0x9C, 0xD1, 0x94, 0xE8,
         0x40, 0xD6, 0x29, 0x39, 0x7A, 0xF5, 0x56, 0x96,
         0x62, 0xFD, 0xE4, 0x46, 0x49, 0x99, 0x59, 0x63,
@@ -956,14 +1315,266 @@ void test_ecdsa_infinity(void) {
     };
     unsigned char pubkey[65];
     int pubkeylen = 65;
-    CHECK(!secp256k1_ecdsa_recover_compact(msg32, 32, sig64, pubkey, &pubkeylen, 0, 0));
-    CHECK(secp256k1_ecdsa_recover_compact(msg32, 32, sig64, pubkey, &pubkeylen, 0, 1));
-    CHECK(!secp256k1_ecdsa_recover_compact(msg32, 32, sig64, pubkey, &pubkeylen, 0, 2));
-    CHECK(!secp256k1_ecdsa_recover_compact(msg32, 32, sig64, pubkey, &pubkeylen, 0, 3));
+    CHECK(!secp256k1_ecdsa_recover_compact(msg32, sig64, pubkey, &pubkeylen, 0, 0));
+    CHECK(secp256k1_ecdsa_recover_compact(msg32, sig64, pubkey, &pubkeylen, 0, 1));
+    CHECK(!secp256k1_ecdsa_recover_compact(msg32, sig64, pubkey, &pubkeylen, 0, 2));
+    CHECK(!secp256k1_ecdsa_recover_compact(msg32, sig64, pubkey, &pubkeylen, 0, 3));
+
+    /* signature (r,s) = (4,4), which can be recovered with all 4 recids. */
+    const unsigned char sigb64[64] = {
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
+    };
+    unsigned char pubkeyb[33];
+    int pubkeyblen = 33;
+    for (int recid = 0; recid < 4; recid++) {
+        /* (4,4) encoded in DER. */
+        unsigned char sigbder[8] = {0x30, 0x06, 0x02, 0x01, 0x04, 0x02, 0x01, 0x04};
+        unsigned char sigcder_zr[7] = {0x30, 0x05, 0x02, 0x00, 0x02, 0x01, 0x01};
+        unsigned char sigcder_zs[7] = {0x30, 0x05, 0x02, 0x01, 0x01, 0x02, 0x00};
+        unsigned char sigbderalt1[39] = {
+            0x30, 0x25, 0x02, 0x20, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x04, 0x02, 0x01, 0x04,
+        };
+        unsigned char sigbderalt2[39] = {
+            0x30, 0x25, 0x02, 0x01, 0x04, 0x02, 0x20, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
+        };
+        unsigned char sigbderalt3[40] = {
+            0x30, 0x26, 0x02, 0x21, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x04, 0x02, 0x01, 0x04,
+        };
+        unsigned char sigbderalt4[40] = {
+            0x30, 0x26, 0x02, 0x01, 0x04, 0x02, 0x21, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
+        };
+        /* (order + r,4) encoded in DER. */
+        unsigned char sigbderlong[40] = {
+            0x30, 0x26, 0x02, 0x21, 0x00, 0xFF, 0xFF, 0xFF,
+            0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+            0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xBA, 0xAE, 0xDC,
+            0xE6, 0xAF, 0x48, 0xA0, 0x3B, 0xBF, 0xD2, 0x5E,
+            0x8C, 0xD0, 0x36, 0x41, 0x45, 0x02, 0x01, 0x04
+        };
+        CHECK(secp256k1_ecdsa_recover_compact(msg32, sigb64, pubkeyb, &pubkeyblen, 1, recid));
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbder, sizeof(sigbder), pubkeyb, pubkeyblen) == 1);
+        for (int recid2 = 0; recid2 < 4; recid2++) {
+            unsigned char pubkey2b[33];
+            int pubkey2blen = 33;
+            CHECK(secp256k1_ecdsa_recover_compact(msg32, sigb64, pubkey2b, &pubkey2blen, 1, recid2));
+            /* Verifying with (order + r,4) should always fail. */
+            CHECK(secp256k1_ecdsa_verify(msg32, sigbderlong, sizeof(sigbderlong), pubkey2b, pubkey2blen) != 1);
+        }
+        /* DER parsing tests. */
+        /* Zero length r/s. */
+        CHECK(secp256k1_ecdsa_verify(msg32, sigcder_zr, sizeof(sigcder_zr), pubkeyb, pubkeyblen) == -2);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigcder_zs, sizeof(sigcder_zs), pubkeyb, pubkeyblen) == -2);
+        /* Leading zeros. */
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbderalt1, sizeof(sigbderalt1), pubkeyb, pubkeyblen) == 1);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbderalt2, sizeof(sigbderalt2), pubkeyb, pubkeyblen) == 1);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbderalt3, sizeof(sigbderalt3), pubkeyb, pubkeyblen) == 1);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbderalt4, sizeof(sigbderalt4), pubkeyb, pubkeyblen) == 1);
+        sigbderalt3[4] = 1;
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbderalt3, sizeof(sigbderalt3), pubkeyb, pubkeyblen) == -2);
+        sigbderalt4[7] = 1;
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbderalt4, sizeof(sigbderalt4), pubkeyb, pubkeyblen) == -2);
+        /* Damage signature. */
+        sigbder[7]++;
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbder, sizeof(sigbder), pubkeyb, pubkeyblen) == 0);
+        sigbder[7]--;
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbder, 6, pubkeyb, pubkeyblen) == -2);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigbder, sizeof(sigbder)-1, pubkeyb, pubkeyblen) == -2);
+        for(int i = 0; i<8; i++) {
+            unsigned char orig = sigbder[i];
+            /*Try every single-byte change.*/
+            for (int c=0; c<256; c++) {
+                if (c == orig ) continue;
+                sigbder[i] = c;
+                CHECK(secp256k1_ecdsa_verify(msg32, sigbder, sizeof(sigbder), pubkeyb, pubkeyblen) ==
+                  (i==4 || i==7) ? 0 : -2 );
+            }
+            sigbder[i] = orig;
+        }
+    }
+
+    /* Test the case where ECDSA recomputes a point that is infinity. */
+    {
+        secp256k1_ecdsa_sig_t sig;
+        secp256k1_scalar_set_int(&sig.s, 1);
+        secp256k1_scalar_negate(&sig.s, &sig.s);
+        secp256k1_scalar_inverse(&sig.s, &sig.s);
+        secp256k1_scalar_set_int(&sig.r, 1);
+        secp256k1_gej_t keyj;
+        secp256k1_ecmult_gen(&keyj, &sig.r);
+        secp256k1_ge_t key;
+        secp256k1_ge_set_gej(&key, &keyj);
+        secp256k1_scalar_t msg = sig.s;
+        CHECK(secp256k1_ecdsa_sig_verify(&sig, &key, &msg) == 0);
+    }
+
+    /* Test r/s equal to zero */
+    {
+        /* (1,1) encoded in DER. */
+        unsigned char sigcder[8] = {0x30, 0x06, 0x02, 0x01, 0x01, 0x02, 0x01, 0x01};
+        unsigned char sigc64[64] = {
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+        };
+        unsigned char pubkeyc[65];
+        int pubkeyclen = 65;
+        CHECK(secp256k1_ecdsa_recover_compact(msg32, sigc64, pubkeyc, &pubkeyclen, 0, 0) == 1);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigcder, sizeof(sigcder), pubkeyc, pubkeyclen) == 1);
+        sigcder[4] = 0;
+        sigc64[31] = 0;
+        CHECK(secp256k1_ecdsa_recover_compact(msg32, sigc64, pubkeyb, &pubkeyblen, 1, 0) == 0);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigcder, sizeof(sigcder), pubkeyc, pubkeyclen) == 0);
+        sigcder[4] = 1;
+        sigcder[7] = 0;
+        sigc64[31] = 1;
+        sigc64[63] = 0;
+        CHECK(secp256k1_ecdsa_recover_compact(msg32, sigc64, pubkeyb, &pubkeyblen, 1, 0) == 0);
+        CHECK(secp256k1_ecdsa_verify(msg32, sigcder, sizeof(sigcder), pubkeyc, pubkeyclen) == 0);
+    }
+
+    /*Signature where s would be zero.*/
+    {
+        const unsigned char nonce[32] = {
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+        };
+        static const unsigned char nonce2[32] = {
+            0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
+            0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFE,
+            0xBA,0xAE,0xDC,0xE6,0xAF,0x48,0xA0,0x3B,
+            0xBF,0xD2,0x5E,0x8C,0xD0,0x36,0x41,0x40
+        };
+        const unsigned char key[32] = {
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+            0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+        };
+        unsigned char msg[32] = {
+            0x86, 0x41, 0x99, 0x81, 0x06, 0x23, 0x44, 0x53,
+            0xaa, 0x5f, 0x9d, 0x6a, 0x31, 0x78, 0xf4, 0xf7,
+            0xb8, 0x12, 0xe0, 0x0b, 0x81, 0x7a, 0x77, 0x62,
+            0x65, 0xdf, 0xdd, 0x31, 0xb9, 0x3e, 0x29, 0xa9,
+        };
+        unsigned char sig[72];
+        int siglen = 72;
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, precomputed_nonce_function, nonce) == 0);
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, precomputed_nonce_function, nonce2) == 0);
+        msg[31] = 0xaa;
+        siglen = 72;
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, precomputed_nonce_function, nonce) == 1);
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, precomputed_nonce_function, nonce2) == 1);
+        siglen = 10;
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, precomputed_nonce_function, nonce) != 1);
+    }
+
+    /* Nonce function corner cases. */
+    {
+        unsigned char key[32];
+        unsigned char msg[32];
+        unsigned char sig[72];
+        memset(key, 0, 32);
+        memset(msg, 0, 32);
+        key[31] = 1;
+        msg[31] = 1;
+        int siglen = 72;
+        int recid;
+        /* Nonce function failure results in signature failure. */
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, nonce_function_test_fail, NULL) == 0);
+        CHECK(secp256k1_ecdsa_sign_compact(msg, sig, key, nonce_function_test_fail, NULL, &recid) == 0);
+        /* The retry loop successfully makes its way to the first good value. */
+        unsigned char sig2[72];
+        int siglen2 = 72;
+        siglen = 72;
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, nonce_function_test_retry, NULL) == 1);
+        CHECK(secp256k1_ecdsa_sign(msg, sig2, &siglen2, key, nonce_function_rfc6979, NULL) == 1);
+        CHECK((siglen == siglen2) && (memcmp(sig, sig2, siglen) == 0));
+        int recid2;
+        CHECK(secp256k1_ecdsa_sign_compact(msg, sig, key, nonce_function_test_retry, NULL, &recid) == 1);
+        CHECK(secp256k1_ecdsa_sign_compact(msg, sig2, key, nonce_function_rfc6979, NULL, &recid2) == 1);
+        CHECK((recid == recid2) && (memcmp(sig, sig2, 64) == 0));
+        /* The default nonce function is determinstic. */
+        siglen = 72;
+        siglen2 = 72;
+        CHECK(secp256k1_ecdsa_sign(msg, sig, &siglen, key, NULL, NULL) == 1);
+        CHECK(secp256k1_ecdsa_sign(msg, sig2, &siglen2, key, NULL, NULL) == 1);
+        CHECK((siglen == siglen2) && (memcmp(sig, sig2, siglen) == 0));
+        CHECK(secp256k1_ecdsa_sign_compact(msg, sig, key, NULL, NULL, &recid) == 1);
+        CHECK(secp256k1_ecdsa_sign_compact(msg, sig2, key, NULL, NULL, &recid2) == 1);
+        CHECK((recid == recid2) && (memcmp(sig, sig2, 64) == 0));
+        /* The default nonce function changes output with different messages. */
+        secp256k1_ecdsa_sig_t s[512];
+        for(int i=0; i<256; i++) {
+            siglen2 = 72;
+            msg[0] = i;
+            CHECK(secp256k1_ecdsa_sign(msg, sig2, &siglen2, key, NULL, NULL) == 1);
+            CHECK(secp256k1_ecdsa_sig_parse(&s[i], sig2, siglen2));
+            for (int j=0; j<i; j++) {
+                CHECK(!secp256k1_scalar_eq(&s[i].r, &s[j].r));
+            }
+        }
+        msg[0] = 0;
+        msg[31] = 2;
+        /* The default nonce function changes output with different keys. */
+        for(int i=256; i<512; i++) {
+            siglen2 = 72;
+            key[0] = i - 256;
+            CHECK(secp256k1_ecdsa_sign(msg, sig2, &siglen2, key, NULL, NULL) == 1);
+            CHECK(secp256k1_ecdsa_sig_parse(&s[i], sig2, siglen2));
+            for (int j=0; j<i; j++) {
+                CHECK(!secp256k1_scalar_eq(&s[i].r, &s[j].r));
+            }
+        }
+        key[0] = 0;
+    }
+
+    /* Privkey export where pubkey is the point at infinity. */
+    {
+        unsigned char privkey[300];
+        unsigned char seckey[32] = {
+            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+            0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xfe,
+            0xba, 0xae, 0xdc, 0xe6, 0xaf, 0x48, 0xa0, 0x3b,
+            0xbf, 0xd2, 0x5e, 0x8c, 0xd0, 0x36, 0x41, 0x41,
+        };
+        int outlen = 300;
+        CHECK(!secp256k1_ec_privkey_export(seckey, privkey, &outlen, 0));
+        CHECK(!secp256k1_ec_privkey_export(seckey, privkey, &outlen, 1));
+    }
 }
 
-void run_ecdsa_infinity(void) {
-    test_ecdsa_infinity();
+void run_ecdsa_edge_cases(void) {
+    test_ecdsa_edge_cases();
 }
 
 #ifdef ENABLE_OPENSSL_TESTS
@@ -996,11 +1607,12 @@ void test_ecdsa_openssl(void) {
     CHECK(ECDSA_sign(0, message, sizeof(message), signature, &sigsize, ec_key));
     secp256k1_ecdsa_sig_t sig;
     CHECK(secp256k1_ecdsa_sig_parse(&sig, signature, sigsize));
-    secp256k1_num_t msg_num;
-    secp256k1_scalar_get_num(&msg_num, &msg);
-    CHECK(secp256k1_ecdsa_sig_verify(&sig, &q, &msg_num));
-    secp256k1_num_inc(&sig.r);
-    CHECK(!secp256k1_ecdsa_sig_verify(&sig, &q, &msg_num));
+    CHECK(secp256k1_ecdsa_sig_verify(&sig, &q, &msg));
+    secp256k1_scalar_t one;
+    secp256k1_scalar_set_int(&one, 1);
+    secp256k1_scalar_t msg2;
+    secp256k1_scalar_add(&msg2, &msg, &one);
+    CHECK(!secp256k1_ecdsa_sig_verify(&sig, &q, &msg2));
 
     random_sign(&sig, &key, &msg, NULL);
     int secp_sigsize = 80;
@@ -1042,8 +1654,23 @@ int main(int argc, char **argv) {
     /* initialize */
     secp256k1_start(SECP256K1_START_SIGN | SECP256K1_START_VERIFY);
 
+    /* initializing a second time shouldn't cause any harm or memory leaks. */
+    secp256k1_start(SECP256K1_START_SIGN | SECP256K1_START_VERIFY);
+
+    /* Likewise, re-running the internal init functions should be harmless. */
+    secp256k1_fe_start();
+    secp256k1_ge_start();
+    secp256k1_scalar_start();
+    secp256k1_ecdsa_start();
+
+    run_sha256_tests();
+    run_hmac_sha256_tests();
+    run_rfc6979_hmac_sha256_tests();
+
+#ifndef USE_NUM_NONE
     /* num tests */
     run_num_smalltests();
+#endif
 
     /* scalar tests */
     run_scalar_tests();
@@ -1051,8 +1678,8 @@ int main(int argc, char **argv) {
     /* field tests */
     run_field_inv();
     run_field_inv_var();
-    run_field_inv_all();
     run_field_inv_all_var();
+    run_field_misc();
     run_sqr();
     run_sqrt();
 
@@ -1065,9 +1692,10 @@ int main(int argc, char **argv) {
     run_ecmult_chain();
 
     /* ecdsa tests */
+    run_random_pubkeys();
     run_ecdsa_sign_verify();
     run_ecdsa_end_to_end();
-    run_ecdsa_infinity();
+    run_ecdsa_edge_cases();
 #ifdef ENABLE_OPENSSL_TESTS
     run_ecdsa_openssl();
 #endif
@@ -1076,5 +1704,14 @@ int main(int argc, char **argv) {
 
     /* shutdown */
     secp256k1_stop();
+
+    /* shutting down twice shouldn't cause any double frees. */
+    secp256k1_stop();
+
+    /* Same for the internal shutdown functions. */
+    secp256k1_fe_stop();
+    secp256k1_ge_stop();
+    secp256k1_scalar_stop();
+    secp256k1_ecdsa_stop();
     return 0;
 }
diff --git a/src/secp256k1/src/util.h b/src/secp256k1/src/util.h
index 96b47057c0..c3a8f3a42b 100644
--- a/src/secp256k1/src/util.h
+++ b/src/secp256k1/src/util.h
@@ -61,4 +61,27 @@
 #define VERIFY_CHECK(cond) do { (void)(cond); } while(0)
 #endif
 
+static inline void *checked_malloc(size_t size) {
+    void *ret = malloc(size);
+    CHECK(ret != NULL);
+    return ret;
+}
+
+/* Macro for restrict, when available and not in a VERIFY build. */
+#if defined(SECP256K1_BUILD) && defined(VERIFY)
+# define SECP256K1_RESTRICT
+#else
+# if (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L) )
+#  if SECP256K1_GNUC_PREREQ(3,0)
+#   define SECP256K1_RESTRICT __restrict__
+#  elif (defined(_MSC_VER) && _MSC_VER >= 1400)
+#   define SECP256K1_RESTRICT __restrict
+#  else
+#   define SECP256K1_RESTRICT
+#  endif
+# else
+#  define SECP256K1_RESTRICT restrict
+# endif
+#endif
+
 #endif
diff --git a/src/serialize.h b/src/serialize.h
index ad38a3fa22..a62760a793 100644
--- a/src/serialize.h
+++ b/src/serialize.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -249,7 +249,7 @@ uint64_t ReadCompactSize(Stream& is)
             throw std::ios_base::failure("non-canonical ReadCompactSize()");
     }
     if (nSizeRet > (uint64_t)MAX_SIZE)
-        throw std::ios_base::failure("ReadCompactSize() : size too large");
+        throw std::ios_base::failure("ReadCompactSize(): size too large");
     return nSizeRet;
 }
 
diff --git a/src/streams.h b/src/streams.h
index b07b11eb3d..bd8568b1af 100644
--- a/src/streams.h
+++ b/src/streams.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_STREAMS_H
@@ -224,7 +224,7 @@ public:
         {
             if (nReadPosNext > vch.size())
             {
-                throw std::ios_base::failure("CDataStream::read() : end of data");
+                throw std::ios_base::failure("CDataStream::read(): end of data");
             }
             memcpy(pch, &vch[nReadPos], nSize);
             nReadPos = 0;
@@ -244,7 +244,7 @@ public:
         if (nReadPosNext >= vch.size())
         {
             if (nReadPosNext > vch.size())
-                throw std::ios_base::failure("CDataStream::ignore() : end of data");
+                throw std::ios_base::failure("CDataStream::ignore(): end of data");
             nReadPos = 0;
             vch.clear();
             return (*this);
@@ -374,18 +374,18 @@ public:
     CAutoFile& read(char* pch, size_t nSize)
     {
         if (!file)
-            throw std::ios_base::failure("CAutoFile::read : file handle is NULL");
+            throw std::ios_base::failure("CAutoFile::read: file handle is NULL");
         if (fread(pch, 1, nSize, file) != nSize)
-            throw std::ios_base::failure(feof(file) ? "CAutoFile::read : end of file" : "CAutoFile::read : fread failed");
+            throw std::ios_base::failure(feof(file) ? "CAutoFile::read: end of file" : "CAutoFile::read: fread failed");
         return (*this);
     }
 
     CAutoFile& write(const char* pch, size_t nSize)
     {
         if (!file)
-            throw std::ios_base::failure("CAutoFile::write : file handle is NULL");
+            throw std::ios_base::failure("CAutoFile::write: file handle is NULL");
         if (fwrite(pch, 1, nSize, file) != nSize)
-            throw std::ios_base::failure("CAutoFile::write : write failed");
+            throw std::ios_base::failure("CAutoFile::write: write failed");
         return (*this);
     }
 
@@ -401,7 +401,7 @@ public:
     {
         // Serialize to this stream
         if (!file)
-            throw std::ios_base::failure("CAutoFile::operator<< : file handle is NULL");
+            throw std::ios_base::failure("CAutoFile::operator<<: file handle is NULL");
         ::Serialize(*this, obj, nType, nVersion);
         return (*this);
     }
@@ -411,7 +411,7 @@ public:
     {
         // Unserialize from this stream
         if (!file)
-            throw std::ios_base::failure("CAutoFile::operator>> : file handle is NULL");
+            throw std::ios_base::failure("CAutoFile::operator>>: file handle is NULL");
         ::Unserialize(*this, obj, nType, nVersion);
         return (*this);
     }
@@ -452,7 +452,7 @@ protected:
             return false;
         size_t read = fread((void*)&vchBuf[pos], 1, readNow, src);
         if (read == 0) {
-            throw std::ios_base::failure(feof(src) ? "CBufferedFile::Fill : end of file" : "CBufferedFile::Fill : fread failed");
+            throw std::ios_base::failure(feof(src) ? "CBufferedFile::Fill: end of file" : "CBufferedFile::Fill: fread failed");
         } else {
             nSrcPos += read;
             return true;
diff --git a/src/sync.cpp b/src/sync.cpp
index ef35c9d646..e28caee8e7 100644
--- a/src/sync.cpp
+++ b/src/sync.cpp
@@ -1,5 +1,5 @@
-// Copyright (c) 2011-2012 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2011-2012 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "sync.h"
diff --git a/src/sync.h b/src/sync.h
index cd0aa7b20e..27e80e813b 100644
--- a/src/sync.h
+++ b/src/sync.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_SYNC_H
@@ -142,6 +142,17 @@ public:
             Enter(pszName, pszFile, nLine);
     }
 
+    CMutexLock(Mutex* pmutexIn, const char* pszName, const char* pszFile, int nLine, bool fTry = false)
+    {
+        if (!pmutexIn) return;
+
+        lock = boost::unique_lock<Mutex>(*pmutexIn, boost::defer_lock);
+        if (fTry)
+            TryEnter(pszName, pszFile, nLine);
+        else
+            Enter(pszName, pszFile, nLine);
+    }
+
     ~CMutexLock()
     {
         if (lock.owns_lock())
diff --git a/src/test/Checkpoints_tests.cpp b/src/test/Checkpoints_tests.cpp
index 8f70f18c7c..a9b6cd44a8 100644
--- a/src/test/Checkpoints_tests.cpp
+++ b/src/test/Checkpoints_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 //
@@ -18,8 +18,8 @@ BOOST_AUTO_TEST_SUITE(Checkpoints_tests)
 
 BOOST_AUTO_TEST_CASE(sanity)
 {
-    uint256 p11111 = uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d");
-    uint256 p134444 = uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe");
+    uint256 p11111 = uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d");
+    uint256 p134444 = uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe");
     BOOST_CHECK(Checkpoints::CheckBlock(11111, p11111));
     BOOST_CHECK(Checkpoints::CheckBlock(134444, p134444));
 
diff --git a/src/test/DoS_tests.cpp b/src/test/DoS_tests.cpp
index f9746fdaa5..9407511ecb 100644
--- a/src/test/DoS_tests.cpp
+++ b/src/test/DoS_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 //
diff --git a/src/test/accounting_tests.cpp b/src/test/accounting_tests.cpp
index af2a9a214f..da07b8c7a6 100644
--- a/src/test/accounting_tests.cpp
+++ b/src/test/accounting_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "wallet.h"
@@ -46,7 +46,7 @@ BOOST_AUTO_TEST_CASE(acc_orderupgrade)
     walletdb.WriteAccountingEntry(ae);
 
     wtx.mapValue["comment"] = "z";
-    pwalletMain->AddToWallet(wtx);
+    pwalletMain->AddToWallet(wtx, false, &walletdb);
     vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
     vpwtx[0]->nTimeReceived = (unsigned int)1333333335;
     vpwtx[0]->nOrderPos = -1;
@@ -88,7 +88,7 @@ BOOST_AUTO_TEST_CASE(acc_orderupgrade)
         --tx.nLockTime;  // Just to change the hash :)
         *static_cast<CTransaction*>(&wtx) = CTransaction(tx);
     }
-    pwalletMain->AddToWallet(wtx);
+    pwalletMain->AddToWallet(wtx, false, &walletdb);
     vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
     vpwtx[1]->nTimeReceived = (unsigned int)1333333336;
 
@@ -98,7 +98,7 @@ BOOST_AUTO_TEST_CASE(acc_orderupgrade)
         --tx.nLockTime;  // Just to change the hash :)
         *static_cast<CTransaction*>(&wtx) = CTransaction(tx);
     }
-    pwalletMain->AddToWallet(wtx);
+    pwalletMain->AddToWallet(wtx, false, &walletdb);
     vpwtx.push_back(&pwalletMain->mapWallet[wtx.GetHash()]);
     vpwtx[2]->nTimeReceived = (unsigned int)1333333329;
     vpwtx[2]->nOrderPos = -1;
diff --git a/src/test/alert_tests.cpp b/src/test/alert_tests.cpp
index 4869ba52ac..efc9211717 100644
--- a/src/test/alert_tests.cpp
+++ b/src/test/alert_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 //
@@ -92,7 +92,7 @@ struct ReadAlerts
                 alerts.push_back(alert);
             }
         }
-        catch (std::exception) { }
+        catch (const std::exception&) { }
     }
     ~ReadAlerts() { }
 
diff --git a/src/test/allocator_tests.cpp b/src/test/allocator_tests.cpp
index 69888da3df..991b4ac099 100644
--- a/src/test/allocator_tests.cpp
+++ b/src/test/allocator_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "util.h"
diff --git a/src/test/arith_uint256_tests.cpp b/src/test/arith_uint256_tests.cpp
new file mode 100644
index 0000000000..565b02ae64
--- /dev/null
+++ b/src/test/arith_uint256_tests.cpp
@@ -0,0 +1,566 @@
+// Copyright (c) 2011-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <boost/test/unit_test.hpp>
+#include <stdint.h>
+#include <sstream>
+#include <iomanip>
+#include <limits>
+#include <cmath>
+#include "uint256.h"
+#include "arith_uint256.h"
+#include <string>
+#include "version.h"
+
+BOOST_AUTO_TEST_SUITE(arith_uint256_tests)
+
+/// Convert vector to arith_uint256, via uint256 blob
+inline arith_uint256 arith_uint256V(const std::vector<unsigned char>& vch)
+{
+    return UintToArith256(uint256(vch));
+}
+
+const unsigned char R1Array[] =
+    "\x9c\x52\x4a\xdb\xcf\x56\x11\x12\x2b\x29\x12\x5e\x5d\x35\xd2\xd2"
+    "\x22\x81\xaa\xb5\x33\xf0\x08\x32\xd5\x56\xb1\xf9\xea\xe5\x1d\x7d";
+const char R1ArrayHex[] = "7D1DE5EAF9B156D53208F033B5AA8122D2d2355d5e12292b121156cfdb4a529c";
+const double R1Ldouble = 0.4887374590559308955; // R1L equals roughly R1Ldouble * 2^256
+const arith_uint256 R1L = arith_uint256V(std::vector<unsigned char>(R1Array,R1Array+32));
+const uint64_t R1LLow64 = 0x121156cfdb4a529cULL;
+
+const unsigned char R2Array[] =
+    "\x70\x32\x1d\x7c\x47\xa5\x6b\x40\x26\x7e\x0a\xc3\xa6\x9c\xb6\xbf"
+    "\x13\x30\x47\xa3\x19\x2d\xda\x71\x49\x13\x72\xf0\xb4\xca\x81\xd7";
+const arith_uint256 R2L = arith_uint256V(std::vector<unsigned char>(R2Array,R2Array+32));
+
+const char R1LplusR2L[] = "549FB09FEA236A1EA3E31D4D58F1B1369288D204211CA751527CFC175767850C";
+
+const unsigned char ZeroArray[] =
+    "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+    "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
+const arith_uint256 ZeroL = arith_uint256V(std::vector<unsigned char>(ZeroArray,ZeroArray+32));
+
+const unsigned char OneArray[] =
+    "\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
+    "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
+const arith_uint256 OneL = arith_uint256V(std::vector<unsigned char>(OneArray,OneArray+32));
+
+const unsigned char MaxArray[] =
+    "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
+    "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff";
+const arith_uint256 MaxL = arith_uint256V(std::vector<unsigned char>(MaxArray,MaxArray+32));
+
+const arith_uint256 HalfL = (OneL << 255);
+std::string ArrayToString(const unsigned char A[], unsigned int width)
+{
+    std::stringstream Stream;
+    Stream << std::hex;
+    for (unsigned int i = 0; i < width; ++i)
+    {
+        Stream<<std::setw(2)<<std::setfill('0')<<(unsigned int)A[width-i-1];
+    }
+    return Stream.str();
+}
+
+BOOST_AUTO_TEST_CASE( basics ) // constructors, equality, inequality
+{
+    BOOST_CHECK(1 == 0+1);
+    // constructor arith_uint256(vector<char>):
+    BOOST_CHECK(R1L.ToString() == ArrayToString(R1Array,32));
+    BOOST_CHECK(R2L.ToString() == ArrayToString(R2Array,32));
+    BOOST_CHECK(ZeroL.ToString() == ArrayToString(ZeroArray,32));
+    BOOST_CHECK(OneL.ToString() == ArrayToString(OneArray,32));
+    BOOST_CHECK(MaxL.ToString() == ArrayToString(MaxArray,32));
+    BOOST_CHECK(OneL.ToString() != ArrayToString(ZeroArray,32));
+
+    // == and !=
+    BOOST_CHECK(R1L != R2L);
+    BOOST_CHECK(ZeroL != OneL);
+    BOOST_CHECK(OneL != ZeroL);
+    BOOST_CHECK(MaxL != ZeroL);
+    BOOST_CHECK(~MaxL == ZeroL);
+    BOOST_CHECK( ((R1L ^ R2L) ^ R1L) == R2L);
+
+    uint64_t Tmp64 = 0xc4dab720d9c7acaaULL;
+    for (unsigned int i = 0; i < 256; ++i)
+    {
+        BOOST_CHECK(ZeroL != (OneL << i));
+        BOOST_CHECK((OneL << i) != ZeroL);
+        BOOST_CHECK(R1L != (R1L ^ (OneL << i)));
+        BOOST_CHECK(((arith_uint256(Tmp64) ^ (OneL << i) ) != Tmp64 ));
+    }
+    BOOST_CHECK(ZeroL == (OneL << 256));
+
+    // String Constructor and Copy Constructor
+    BOOST_CHECK(arith_uint256("0x"+R1L.ToString()) == R1L);
+    BOOST_CHECK(arith_uint256("0x"+R2L.ToString()) == R2L);
+    BOOST_CHECK(arith_uint256("0x"+ZeroL.ToString()) == ZeroL);
+    BOOST_CHECK(arith_uint256("0x"+OneL.ToString()) == OneL);
+    BOOST_CHECK(arith_uint256("0x"+MaxL.ToString()) == MaxL);
+    BOOST_CHECK(arith_uint256(R1L.ToString()) == R1L);
+    BOOST_CHECK(arith_uint256("   0x"+R1L.ToString()+"   ") == R1L);
+    BOOST_CHECK(arith_uint256("") == ZeroL);
+    BOOST_CHECK(R1L == arith_uint256(R1ArrayHex));
+    BOOST_CHECK(arith_uint256(R1L) == R1L);
+    BOOST_CHECK((arith_uint256(R1L^R2L)^R2L) == R1L);
+    BOOST_CHECK(arith_uint256(ZeroL) == ZeroL);
+    BOOST_CHECK(arith_uint256(OneL) == OneL);
+
+    // uint64_t constructor
+    BOOST_CHECK( (R1L & arith_uint256("0xffffffffffffffff")) == arith_uint256(R1LLow64));
+    BOOST_CHECK(ZeroL == arith_uint256(0));
+    BOOST_CHECK(OneL == arith_uint256(1));
+    BOOST_CHECK(arith_uint256("0xffffffffffffffff") = arith_uint256(0xffffffffffffffffULL));
+
+    // Assignment (from base_uint)
+    arith_uint256 tmpL = ~ZeroL; BOOST_CHECK(tmpL == ~ZeroL);
+    tmpL = ~OneL; BOOST_CHECK(tmpL == ~OneL);
+    tmpL = ~R1L; BOOST_CHECK(tmpL == ~R1L);
+    tmpL = ~R2L; BOOST_CHECK(tmpL == ~R2L);
+    tmpL = ~MaxL; BOOST_CHECK(tmpL == ~MaxL);
+}
+
+void shiftArrayRight(unsigned char* to, const unsigned char* from, unsigned int arrayLength, unsigned int bitsToShift)
+{
+    for (unsigned int T=0; T < arrayLength; ++T)
+    {
+        unsigned int F = (T+bitsToShift/8);
+        if (F < arrayLength)
+            to[T]  = from[F] >> (bitsToShift%8);
+        else
+            to[T] = 0;
+        if (F + 1 < arrayLength)
+            to[T] |= from[(F+1)] << (8-bitsToShift%8);
+    }
+}
+
+void shiftArrayLeft(unsigned char* to, const unsigned char* from, unsigned int arrayLength, unsigned int bitsToShift)
+{
+    for (unsigned int T=0; T < arrayLength; ++T)
+    {
+        if (T >= bitsToShift/8)
+        {
+            unsigned int F = T-bitsToShift/8;
+            to[T]  = from[F] << (bitsToShift%8);
+            if (T >= bitsToShift/8+1)
+                to[T] |= from[F-1] >> (8-bitsToShift%8);
+        }
+        else {
+            to[T] = 0;
+        }
+    }
+}
+
+BOOST_AUTO_TEST_CASE( shifts ) { // "<<"  ">>"  "<<="  ">>="
+    unsigned char TmpArray[32];
+    arith_uint256 TmpL;
+    for (unsigned int i = 0; i < 256; ++i)
+    {
+        shiftArrayLeft(TmpArray, OneArray, 32, i);
+        BOOST_CHECK(arith_uint256V(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (OneL << i));
+        TmpL = OneL; TmpL <<= i;
+        BOOST_CHECK(TmpL == (OneL << i));
+        BOOST_CHECK((HalfL >> (255-i)) == (OneL << i));
+        TmpL = HalfL; TmpL >>= (255-i);
+        BOOST_CHECK(TmpL == (OneL << i));
+
+        shiftArrayLeft(TmpArray, R1Array, 32, i);
+        BOOST_CHECK(arith_uint256V(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (R1L << i));
+        TmpL = R1L; TmpL <<= i;
+        BOOST_CHECK(TmpL == (R1L << i));
+
+        shiftArrayRight(TmpArray, R1Array, 32, i);
+        BOOST_CHECK(arith_uint256V(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (R1L >> i));
+        TmpL = R1L; TmpL >>= i;
+        BOOST_CHECK(TmpL == (R1L >> i));
+
+        shiftArrayLeft(TmpArray, MaxArray, 32, i);
+        BOOST_CHECK(arith_uint256V(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (MaxL << i));
+        TmpL = MaxL; TmpL <<= i;
+        BOOST_CHECK(TmpL == (MaxL << i));
+
+        shiftArrayRight(TmpArray, MaxArray, 32, i);
+        BOOST_CHECK(arith_uint256V(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (MaxL >> i));
+        TmpL = MaxL; TmpL >>= i;
+        BOOST_CHECK(TmpL == (MaxL >> i));
+    }
+    arith_uint256 c1L = arith_uint256(0x0123456789abcdefULL);
+    arith_uint256 c2L = c1L << 128;
+    for (unsigned int i = 0; i < 128; ++i) {
+        BOOST_CHECK((c1L << i) == (c2L >> (128-i)));
+    }
+    for (unsigned int i = 128; i < 256; ++i) {
+        BOOST_CHECK((c1L << i) == (c2L << (i-128)));
+    }
+}
+
+BOOST_AUTO_TEST_CASE( unaryOperators ) // !    ~    -
+{
+    BOOST_CHECK(!ZeroL);
+    BOOST_CHECK(!(!OneL));
+    for (unsigned int i = 0; i < 256; ++i)
+        BOOST_CHECK(!(!(OneL<<i)));
+    BOOST_CHECK(!(!R1L));
+    BOOST_CHECK(!(!MaxL));
+
+    BOOST_CHECK(~ZeroL == MaxL);
+
+    unsigned char TmpArray[32];
+    for (unsigned int i = 0; i < 32; ++i) { TmpArray[i] = ~R1Array[i]; }
+    BOOST_CHECK(arith_uint256V(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (~R1L));
+
+    BOOST_CHECK(-ZeroL == ZeroL);
+    BOOST_CHECK(-R1L == (~R1L)+1);
+    for (unsigned int i = 0; i < 256; ++i)
+        BOOST_CHECK(-(OneL<<i) == (MaxL << i));
+}
+
+
+// Check if doing _A_ _OP_ _B_ results in the same as applying _OP_ onto each
+// element of Aarray and Barray, and then converting the result into a arith_uint256.
+#define CHECKBITWISEOPERATOR(_A_,_B_,_OP_)                              \
+    for (unsigned int i = 0; i < 32; ++i) { TmpArray[i] = _A_##Array[i] _OP_ _B_##Array[i]; } \
+    BOOST_CHECK(arith_uint256V(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (_A_##L _OP_ _B_##L));
+
+#define CHECKASSIGNMENTOPERATOR(_A_,_B_,_OP_)                           \
+    TmpL = _A_##L; TmpL _OP_##= _B_##L; BOOST_CHECK(TmpL == (_A_##L _OP_ _B_##L));
+
+BOOST_AUTO_TEST_CASE( bitwiseOperators )
+{
+    unsigned char TmpArray[32];
+
+    CHECKBITWISEOPERATOR(R1,R2,|)
+    CHECKBITWISEOPERATOR(R1,R2,^)
+    CHECKBITWISEOPERATOR(R1,R2,&)
+    CHECKBITWISEOPERATOR(R1,Zero,|)
+    CHECKBITWISEOPERATOR(R1,Zero,^)
+    CHECKBITWISEOPERATOR(R1,Zero,&)
+    CHECKBITWISEOPERATOR(R1,Max,|)
+    CHECKBITWISEOPERATOR(R1,Max,^)
+    CHECKBITWISEOPERATOR(R1,Max,&)
+    CHECKBITWISEOPERATOR(Zero,R1,|)
+    CHECKBITWISEOPERATOR(Zero,R1,^)
+    CHECKBITWISEOPERATOR(Zero,R1,&)
+    CHECKBITWISEOPERATOR(Max,R1,|)
+    CHECKBITWISEOPERATOR(Max,R1,^)
+    CHECKBITWISEOPERATOR(Max,R1,&)
+
+    arith_uint256 TmpL;
+    CHECKASSIGNMENTOPERATOR(R1,R2,|)
+    CHECKASSIGNMENTOPERATOR(R1,R2,^)
+    CHECKASSIGNMENTOPERATOR(R1,R2,&)
+    CHECKASSIGNMENTOPERATOR(R1,Zero,|)
+    CHECKASSIGNMENTOPERATOR(R1,Zero,^)
+    CHECKASSIGNMENTOPERATOR(R1,Zero,&)
+    CHECKASSIGNMENTOPERATOR(R1,Max,|)
+    CHECKASSIGNMENTOPERATOR(R1,Max,^)
+    CHECKASSIGNMENTOPERATOR(R1,Max,&)
+    CHECKASSIGNMENTOPERATOR(Zero,R1,|)
+    CHECKASSIGNMENTOPERATOR(Zero,R1,^)
+    CHECKASSIGNMENTOPERATOR(Zero,R1,&)
+    CHECKASSIGNMENTOPERATOR(Max,R1,|)
+    CHECKASSIGNMENTOPERATOR(Max,R1,^)
+    CHECKASSIGNMENTOPERATOR(Max,R1,&)
+
+    uint64_t Tmp64 = 0xe1db685c9a0b47a2ULL;
+    TmpL = R1L; TmpL |= Tmp64;  BOOST_CHECK(TmpL == (R1L | arith_uint256(Tmp64)));
+    TmpL = R1L; TmpL |= 0; BOOST_CHECK(TmpL == R1L);
+    TmpL ^= 0; BOOST_CHECK(TmpL == R1L);
+    TmpL ^= Tmp64;  BOOST_CHECK(TmpL == (R1L ^ arith_uint256(Tmp64)));
+}
+
+BOOST_AUTO_TEST_CASE( comparison ) // <= >= < >
+{
+    arith_uint256 TmpL;
+    for (unsigned int i = 0; i < 256; ++i) {
+        TmpL= OneL<< i;
+        BOOST_CHECK( TmpL >= ZeroL && TmpL > ZeroL && ZeroL < TmpL && ZeroL <= TmpL);
+        BOOST_CHECK( TmpL >= 0 && TmpL > 0 && 0 < TmpL && 0 <= TmpL);
+        TmpL |= R1L;
+        BOOST_CHECK( TmpL >= R1L ); BOOST_CHECK( (TmpL == R1L) != (TmpL > R1L)); BOOST_CHECK( (TmpL == R1L) || !( TmpL <= R1L));
+        BOOST_CHECK( R1L <= TmpL ); BOOST_CHECK( (R1L == TmpL) != (R1L < TmpL)); BOOST_CHECK( (TmpL == R1L) || !( R1L >= TmpL));
+        BOOST_CHECK(! (TmpL < R1L)); BOOST_CHECK(! (R1L > TmpL));
+    }
+}
+
+BOOST_AUTO_TEST_CASE( plusMinus )
+{
+    arith_uint256 TmpL = 0;
+    BOOST_CHECK(R1L+R2L == arith_uint256(R1LplusR2L));
+    TmpL += R1L;
+    BOOST_CHECK(TmpL == R1L);
+    TmpL += R2L;
+    BOOST_CHECK(TmpL == R1L + R2L);
+    BOOST_CHECK(OneL+MaxL == ZeroL);
+    BOOST_CHECK(MaxL+OneL == ZeroL);
+    for (unsigned int i = 1; i < 256; ++i) {
+        BOOST_CHECK( (MaxL >> i) + OneL == (HalfL >> (i-1)) );
+        BOOST_CHECK( OneL + (MaxL >> i) == (HalfL >> (i-1)) );
+        TmpL = (MaxL>>i); TmpL += OneL;
+        BOOST_CHECK( TmpL == (HalfL >> (i-1)) );
+        TmpL = (MaxL>>i); TmpL += 1;
+        BOOST_CHECK( TmpL == (HalfL >> (i-1)) );
+        TmpL = (MaxL>>i);
+        BOOST_CHECK( TmpL++ == (MaxL>>i) );
+        BOOST_CHECK( TmpL == (HalfL >> (i-1)));
+    }
+    BOOST_CHECK(arith_uint256(0xbedc77e27940a7ULL) + 0xee8d836fce66fbULL == arith_uint256(0xbedc77e27940a7ULL + 0xee8d836fce66fbULL));
+    TmpL = arith_uint256(0xbedc77e27940a7ULL); TmpL += 0xee8d836fce66fbULL;
+    BOOST_CHECK(TmpL == arith_uint256(0xbedc77e27940a7ULL+0xee8d836fce66fbULL));
+    TmpL -= 0xee8d836fce66fbULL;  BOOST_CHECK(TmpL == 0xbedc77e27940a7ULL);
+    TmpL = R1L;
+    BOOST_CHECK(++TmpL == R1L+1);
+
+    BOOST_CHECK(R1L -(-R2L) == R1L+R2L);
+    BOOST_CHECK(R1L -(-OneL) == R1L+OneL);
+    BOOST_CHECK(R1L - OneL == R1L+(-OneL));
+    for (unsigned int i = 1; i < 256; ++i) {
+        BOOST_CHECK((MaxL>>i) - (-OneL)  == (HalfL >> (i-1)));
+        BOOST_CHECK((HalfL >> (i-1)) - OneL == (MaxL>>i));
+        TmpL = (HalfL >> (i-1));
+        BOOST_CHECK(TmpL-- == (HalfL >> (i-1)));
+        BOOST_CHECK(TmpL == (MaxL >> i));
+        TmpL = (HalfL >> (i-1));
+        BOOST_CHECK(--TmpL == (MaxL >> i));
+    }
+    TmpL = R1L;
+    BOOST_CHECK(--TmpL == R1L-1);
+}
+
+BOOST_AUTO_TEST_CASE( multiply )
+{
+    BOOST_CHECK((R1L * R1L).ToString() == "62a38c0486f01e45879d7910a7761bf30d5237e9873f9bff3642a732c4d84f10");
+    BOOST_CHECK((R1L * R2L).ToString() == "de37805e9986996cfba76ff6ba51c008df851987d9dd323f0e5de07760529c40");
+    BOOST_CHECK((R1L * ZeroL) == ZeroL);
+    BOOST_CHECK((R1L * OneL) == R1L);
+    BOOST_CHECK((R1L * MaxL) == -R1L);
+    BOOST_CHECK((R2L * R1L) == (R1L * R2L));
+    BOOST_CHECK((R2L * R2L).ToString() == "ac8c010096767d3cae5005dec28bb2b45a1d85ab7996ccd3e102a650f74ff100");
+    BOOST_CHECK((R2L * ZeroL) == ZeroL);
+    BOOST_CHECK((R2L * OneL) == R2L);
+    BOOST_CHECK((R2L * MaxL) == -R2L);
+
+    BOOST_CHECK(MaxL * MaxL == OneL);
+
+    BOOST_CHECK((R1L * 0) == 0);
+    BOOST_CHECK((R1L * 1) == R1L);
+    BOOST_CHECK((R1L * 3).ToString() == "7759b1c0ed14047f961ad09b20ff83687876a0181a367b813634046f91def7d4");
+    BOOST_CHECK((R2L * 0x87654321UL).ToString() == "23f7816e30c4ae2017257b7a0fa64d60402f5234d46e746b61c960d09a26d070");
+}
+
+BOOST_AUTO_TEST_CASE( divide )
+{
+    arith_uint256 D1L("AD7133AC1977FA2B7");
+    arith_uint256 D2L("ECD751716");
+    BOOST_CHECK((R1L / D1L).ToString() == "00000000000000000b8ac01106981635d9ed112290f8895545a7654dde28fb3a");
+    BOOST_CHECK((R1L / D2L).ToString() == "000000000873ce8efec5b67150bad3aa8c5fcb70e947586153bf2cec7c37c57a");
+    BOOST_CHECK(R1L / OneL == R1L);
+    BOOST_CHECK(R1L / MaxL == ZeroL);
+    BOOST_CHECK(MaxL / R1L == 2);
+    BOOST_CHECK_THROW(R1L / ZeroL, uint_error);
+    BOOST_CHECK((R2L / D1L).ToString() == "000000000000000013e1665895a1cc981de6d93670105a6b3ec3b73141b3a3c5");
+    BOOST_CHECK((R2L / D2L).ToString() == "000000000e8f0abe753bb0afe2e9437ee85d280be60882cf0bd1aaf7fa3cc2c4");
+    BOOST_CHECK(R2L / OneL == R2L);
+    BOOST_CHECK(R2L / MaxL == ZeroL);
+    BOOST_CHECK(MaxL / R2L == 1);
+    BOOST_CHECK_THROW(R2L / ZeroL, uint_error);
+}
+
+
+bool almostEqual(double d1, double d2)
+{
+    return fabs(d1-d2) <= 4*fabs(d1)*std::numeric_limits<double>::epsilon();
+}
+
+BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex size() GetLow64 GetSerializeSize, Serialize, Unserialize
+{
+    BOOST_CHECK(R1L.GetHex() == R1L.ToString());
+    BOOST_CHECK(R2L.GetHex() == R2L.ToString());
+    BOOST_CHECK(OneL.GetHex() == OneL.ToString());
+    BOOST_CHECK(MaxL.GetHex() == MaxL.ToString());
+    arith_uint256 TmpL(R1L);
+    BOOST_CHECK(TmpL == R1L);
+    TmpL.SetHex(R2L.ToString());   BOOST_CHECK(TmpL == R2L);
+    TmpL.SetHex(ZeroL.ToString()); BOOST_CHECK(TmpL == 0);
+    TmpL.SetHex(HalfL.ToString()); BOOST_CHECK(TmpL == HalfL);
+
+    TmpL.SetHex(R1L.ToString());
+    BOOST_CHECK(R1L.size() == 32);
+    BOOST_CHECK(R2L.size() == 32);
+    BOOST_CHECK(ZeroL.size() == 32);
+    BOOST_CHECK(MaxL.size() == 32);
+    BOOST_CHECK(R1L.GetLow64()  == R1LLow64);
+    BOOST_CHECK(HalfL.GetLow64() ==0x0000000000000000ULL);
+    BOOST_CHECK(OneL.GetLow64() ==0x0000000000000001ULL);
+
+    for (unsigned int i = 0; i < 255; ++i)
+    {
+        BOOST_CHECK((OneL << i).getdouble() == ldexp(1.0,i));
+    }
+    BOOST_CHECK(ZeroL.getdouble() == 0.0);
+    for (int i = 256; i > 53; --i)
+        BOOST_CHECK(almostEqual((R1L>>(256-i)).getdouble(), ldexp(R1Ldouble,i)));
+    uint64_t R1L64part = (R1L>>192).GetLow64();
+    for (int i = 53; i > 0; --i) // doubles can store all integers in {0,...,2^54-1} exactly
+    {
+        BOOST_CHECK((R1L>>(256-i)).getdouble() == (double)(R1L64part >> (64-i)));
+    }
+}
+
+BOOST_AUTO_TEST_CASE(bignum_SetCompact)
+{
+    arith_uint256 num;
+    bool fNegative;
+    bool fOverflow;
+    num.SetCompact(0, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x00123456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x01003456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x02000056, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x03000000, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x04000000, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x00923456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x01803456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x02800056, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x03800000, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x04800000, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x01123456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000012");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0x01120000U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    // Make sure that we don't generate compacts with the 0x00800000 bit set
+    num = 0x80;
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0x02008000U);
+
+    num.SetCompact(0x01fedcba, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "000000000000000000000000000000000000000000000000000000000000007e");
+    BOOST_CHECK_EQUAL(num.GetCompact(true), 0x01fe0000U);
+    BOOST_CHECK_EQUAL(fNegative, true);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x02123456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000001234");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0x02123400U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x03123456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000123456");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0x03123456U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x04123456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000012345600");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0x04123456U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x04923456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000012345600");
+    BOOST_CHECK_EQUAL(num.GetCompact(true), 0x04923456U);
+    BOOST_CHECK_EQUAL(fNegative, true);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x05009234, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000092340000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0x05009234U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0x20123456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(num.GetHex(), "1234560000000000000000000000000000000000000000000000000000000000");
+    BOOST_CHECK_EQUAL(num.GetCompact(), 0x20123456U);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, false);
+
+    num.SetCompact(0xff123456, &fNegative, &fOverflow);
+    BOOST_CHECK_EQUAL(fNegative, false);
+    BOOST_CHECK_EQUAL(fOverflow, true);
+}
+
+
+BOOST_AUTO_TEST_CASE( getmaxcoverage ) // some more tests just to get 100% coverage
+{
+    // ~R1L give a base_uint<256>
+    BOOST_CHECK((~~R1L >> 10) == (R1L >> 10));
+    BOOST_CHECK((~~R1L << 10) == (R1L << 10));
+    BOOST_CHECK(!(~~R1L < R1L));
+    BOOST_CHECK(~~R1L <= R1L);
+    BOOST_CHECK(!(~~R1L > R1L));
+    BOOST_CHECK(~~R1L >= R1L);
+    BOOST_CHECK(!(R1L < ~~R1L));
+    BOOST_CHECK(R1L <= ~~R1L);
+    BOOST_CHECK(!(R1L > ~~R1L));
+    BOOST_CHECK(R1L >= ~~R1L);
+
+    BOOST_CHECK(~~R1L + R2L == R1L + ~~R2L);
+    BOOST_CHECK(~~R1L - R2L == R1L - ~~R2L);
+    BOOST_CHECK(~R1L != R1L); BOOST_CHECK(R1L != ~R1L);
+    unsigned char TmpArray[32];
+    CHECKBITWISEOPERATOR(~R1,R2,|)
+    CHECKBITWISEOPERATOR(~R1,R2,^)
+    CHECKBITWISEOPERATOR(~R1,R2,&)
+    CHECKBITWISEOPERATOR(R1,~R2,|)
+    CHECKBITWISEOPERATOR(R1,~R2,^)
+    CHECKBITWISEOPERATOR(R1,~R2,&)
+}
+
+BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/base32_tests.cpp b/src/test/base32_tests.cpp
index 68617abbdd..5d20a90ad0 100644
--- a/src/test/base32_tests.cpp
+++ b/src/test/base32_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "utilstrencodings.h"
diff --git a/src/test/base58_tests.cpp b/src/test/base58_tests.cpp
index e495435b81..e7d0281881 100644
--- a/src/test/base58_tests.cpp
+++ b/src/test/base58_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "base58.h"
diff --git a/src/test/base64_tests.cpp b/src/test/base64_tests.cpp
index f2bf3326ad..9e6cb342cc 100644
--- a/src/test/base64_tests.cpp
+++ b/src/test/base64_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "utilstrencodings.h"
diff --git a/src/test/bctest.py b/src/test/bctest.py
index ef461014ea..3a8d0ea51b 100644
--- a/src/test/bctest.py
+++ b/src/test/bctest.py
@@ -1,5 +1,5 @@
 # Copyright 2014 BitPay, Inc.
-# Distributed under the MIT/X11 software license, see the accompanying
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 import subprocess
diff --git a/src/test/bignum.h b/src/test/bignum.h
index f64c987202..e7aeee9db6 100644
--- a/src/test/bignum.h
+++ b/src/test/bignum.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_TEST_BIGNUM_H
@@ -37,14 +37,14 @@ public:
         if (!BN_copy(this, &b))
         {
             BN_clear_free(this);
-            throw bignum_error("CBigNum::CBigNum(const CBigNum&) : BN_copy failed");
+            throw bignum_error("CBigNum::CBigNum(const CBigNum&): BN_copy failed");
         }
     }
 
     CBigNum& operator=(const CBigNum& b)
     {
         if (!BN_copy(this, &b))
-            throw bignum_error("CBigNum::operator= : BN_copy failed");
+            throw bignum_error("CBigNum::operator=: BN_copy failed");
         return (*this);
     }
 
@@ -151,7 +151,7 @@ inline const CBigNum operator+(const CBigNum& a, const CBigNum& b)
 {
     CBigNum r;
     if (!BN_add(&r, &a, &b))
-        throw bignum_error("CBigNum::operator+ : BN_add failed");
+        throw bignum_error("CBigNum::operator+: BN_add failed");
     return r;
 }
 
@@ -159,7 +159,7 @@ inline const CBigNum operator-(const CBigNum& a, const CBigNum& b)
 {
     CBigNum r;
     if (!BN_sub(&r, &a, &b))
-        throw bignum_error("CBigNum::operator- : BN_sub failed");
+        throw bignum_error("CBigNum::operator-: BN_sub failed");
     return r;
 }
 
diff --git a/src/test/bip32_tests.cpp b/src/test/bip32_tests.cpp
index 9cf07fc38c..3d28e06ffc 100644
--- a/src/test/bip32_tests.cpp
+++ b/src/test/bip32_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <boost/test/unit_test.hpp>
diff --git a/src/test/bitcoin-util-test.py b/src/test/bitcoin-util-test.py
index 0eece14cfe..20afb16a9e 100755
--- a/src/test/bitcoin-util-test.py
+++ b/src/test/bitcoin-util-test.py
@@ -1,6 +1,6 @@
 #!/usr/bin/python
 # Copyright 2014 BitPay, Inc.
-# Distributed under the MIT/X11 software license, see the accompanying
+# Distributed under the MIT software license, see the accompanying
 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 import os
diff --git a/src/test/bloom_tests.cpp b/src/test/bloom_tests.cpp
index 783e284af5..64d9909b98 100644
--- a/src/test/bloom_tests.cpp
+++ b/src/test/bloom_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "bloom.h"
@@ -7,10 +7,12 @@
 #include "base58.h"
 #include "clientversion.h"
 #include "key.h"
-#include "main.h"
+#include "merkleblock.h"
 #include "serialize.h"
+#include "streams.h"
 #include "uint256.h"
 #include "util.h"
+#include "utilstrencodings.h"
 
 #include <vector>
 
@@ -18,7 +20,6 @@
 #include <boost/tuple/tuple.hpp>
 
 using namespace std;
-using namespace boost::tuples;
 
 BOOST_AUTO_TEST_SUITE(bloom_tests)
 
@@ -123,7 +124,7 @@ BOOST_AUTO_TEST_CASE(bloom_match)
     spendStream >> spendingTx;
 
     CBloomFilter filter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
-    filter.insert(uint256("0xb4749f017444b051c44dfd2720e88f314ff94f3dd6d56d40ef65854fcd7fff6b"));
+    filter.insert(uint256S("0xb4749f017444b051c44dfd2720e88f314ff94f3dd6d56d40ef65854fcd7fff6b"));
     BOOST_CHECK_MESSAGE(filter.IsRelevantAndUpdate(tx), "Simple Bloom filter didn't match tx hash");
 
     filter = CBloomFilter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
@@ -149,11 +150,11 @@ BOOST_AUTO_TEST_CASE(bloom_match)
     BOOST_CHECK_MESSAGE(filter.IsRelevantAndUpdate(tx), "Simple Bloom filter didn't match output address");
 
     filter = CBloomFilter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
-    filter.insert(COutPoint(uint256("0x90c122d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 0));
+    filter.insert(COutPoint(uint256S("0x90c122d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 0));
     BOOST_CHECK_MESSAGE(filter.IsRelevantAndUpdate(tx), "Simple Bloom filter didn't match COutPoint");
 
     filter = CBloomFilter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
-    COutPoint prevOutPoint(uint256("0x90c122d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 0);
+    COutPoint prevOutPoint(uint256S("0x90c122d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 0);
     {
         vector<unsigned char> data(32 + sizeof(unsigned int));
         memcpy(&data[0], prevOutPoint.hash.begin(), 32);
@@ -163,7 +164,7 @@ BOOST_AUTO_TEST_CASE(bloom_match)
     BOOST_CHECK_MESSAGE(filter.IsRelevantAndUpdate(tx), "Simple Bloom filter didn't match manually serialized COutPoint");
 
     filter = CBloomFilter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
-    filter.insert(uint256("00000009e784f32f62ef849763d4f45b98e07ba658647343b915ff832b110436"));
+    filter.insert(uint256S("00000009e784f32f62ef849763d4f45b98e07ba658647343b915ff832b110436"));
     BOOST_CHECK_MESSAGE(!filter.IsRelevantAndUpdate(tx), "Simple Bloom filter matched random tx hash");
 
     filter = CBloomFilter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
@@ -171,11 +172,11 @@ BOOST_AUTO_TEST_CASE(bloom_match)
     BOOST_CHECK_MESSAGE(!filter.IsRelevantAndUpdate(tx), "Simple Bloom filter matched random address");
 
     filter = CBloomFilter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
-    filter.insert(COutPoint(uint256("0x90c122d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 1));
+    filter.insert(COutPoint(uint256S("0x90c122d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 1));
     BOOST_CHECK_MESSAGE(!filter.IsRelevantAndUpdate(tx), "Simple Bloom filter matched COutPoint for an output we didn't care about");
 
     filter = CBloomFilter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
-    filter.insert(COutPoint(uint256("0x000000d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 0));
+    filter.insert(COutPoint(uint256S("0x000000d70786e899529d71dbeba91ba216982fb6ba58f3bdaab65e73b7e9260b"), 0));
     BOOST_CHECK_MESSAGE(!filter.IsRelevantAndUpdate(tx), "Simple Bloom filter matched COutPoint for an output we didn't care about");
 }
 
@@ -189,7 +190,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_1)
 
     CBloomFilter filter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
     // Match the last transaction
-    filter.insert(uint256("0x74d681e0e03bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20"));
+    filter.insert(uint256S("0x74d681e0e03bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20"));
 
     CMerkleBlock merkleBlock(block, filter);
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
@@ -197,7 +198,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_1)
     BOOST_CHECK(merkleBlock.vMatchedTxn.size() == 1);
     pair<unsigned int, uint256> pair = merkleBlock.vMatchedTxn[0];
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256("0x74d681e0e03bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256S("0x74d681e0e03bafa802c8aa084379aa98d9fcd632ddc2ed9782b586ec87451f20"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[0].first == 8);
 
     vector<uint256> vMatched;
@@ -207,7 +208,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_1)
         BOOST_CHECK(vMatched[i] == merkleBlock.vMatchedTxn[i].second);
 
     // Also match the 8th transaction
-    filter.insert(uint256("0xdd1fd2a6fc16404faf339881a90adbde7f4f728691ac62e8f168809cdfae1053"));
+    filter.insert(uint256S("0xdd1fd2a6fc16404faf339881a90adbde7f4f728691ac62e8f168809cdfae1053"));
     merkleBlock = CMerkleBlock(block, filter);
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
 
@@ -215,7 +216,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_1)
 
     BOOST_CHECK(merkleBlock.vMatchedTxn[1] == pair);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256("0xdd1fd2a6fc16404faf339881a90adbde7f4f728691ac62e8f168809cdfae1053"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256S("0xdd1fd2a6fc16404faf339881a90adbde7f4f728691ac62e8f168809cdfae1053"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[0].first == 7);
 
     BOOST_CHECK(merkleBlock.txn.ExtractMatches(vMatched) == block.hashMerkleRoot);
@@ -234,7 +235,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_2)
 
     CBloomFilter filter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
     // Match the first transaction
-    filter.insert(uint256("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
+    filter.insert(uint256S("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
 
     CMerkleBlock merkleBlock(block, filter);
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
@@ -242,7 +243,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_2)
     BOOST_CHECK(merkleBlock.vMatchedTxn.size() == 1);
     pair<unsigned int, uint256> pair = merkleBlock.vMatchedTxn[0];
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256S("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[0].first == 0);
 
     vector<uint256> vMatched;
@@ -263,13 +264,13 @@ BOOST_AUTO_TEST_CASE(merkle_block_2)
 
     BOOST_CHECK(pair == merkleBlock.vMatchedTxn[0]);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[1].second == uint256("0x28204cad1d7fc1d199e8ef4fa22f182de6258a3eaafe1bbe56ebdcacd3069a5f"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[1].second == uint256S("0x28204cad1d7fc1d199e8ef4fa22f182de6258a3eaafe1bbe56ebdcacd3069a5f"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[1].first == 1);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[2].second == uint256("0x6b0f8a73a56c04b519f1883e8aafda643ba61a30bd1439969df21bea5f4e27e2"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[2].second == uint256S("0x6b0f8a73a56c04b519f1883e8aafda643ba61a30bd1439969df21bea5f4e27e2"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[2].first == 2);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[3].second == uint256("0x3c1d7e82342158e4109df2e0b6348b6e84e403d8b4046d7007663ace63cddb23"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[3].second == uint256S("0x3c1d7e82342158e4109df2e0b6348b6e84e403d8b4046d7007663ace63cddb23"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[3].first == 3);
 
     BOOST_CHECK(merkleBlock.txn.ExtractMatches(vMatched) == block.hashMerkleRoot);
@@ -288,7 +289,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_2_with_update_none)
 
     CBloomFilter filter(10, 0.000001, 0, BLOOM_UPDATE_NONE);
     // Match the first transaction
-    filter.insert(uint256("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
+    filter.insert(uint256S("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
 
     CMerkleBlock merkleBlock(block, filter);
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
@@ -296,7 +297,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_2_with_update_none)
     BOOST_CHECK(merkleBlock.vMatchedTxn.size() == 1);
     pair<unsigned int, uint256> pair = merkleBlock.vMatchedTxn[0];
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256S("0xe980fe9f792d014e73b95203dc1335c5f9ce19ac537a419e6df5b47aecb93b70"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[0].first == 0);
 
     vector<uint256> vMatched;
@@ -317,10 +318,10 @@ BOOST_AUTO_TEST_CASE(merkle_block_2_with_update_none)
 
     BOOST_CHECK(pair == merkleBlock.vMatchedTxn[0]);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[1].second == uint256("0x28204cad1d7fc1d199e8ef4fa22f182de6258a3eaafe1bbe56ebdcacd3069a5f"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[1].second == uint256S("0x28204cad1d7fc1d199e8ef4fa22f182de6258a3eaafe1bbe56ebdcacd3069a5f"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[1].first == 1);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[2].second == uint256("0x3c1d7e82342158e4109df2e0b6348b6e84e403d8b4046d7007663ace63cddb23"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[2].second == uint256S("0x3c1d7e82342158e4109df2e0b6348b6e84e403d8b4046d7007663ace63cddb23"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[2].first == 3);
 
     BOOST_CHECK(merkleBlock.txn.ExtractMatches(vMatched) == block.hashMerkleRoot);
@@ -339,14 +340,14 @@ BOOST_AUTO_TEST_CASE(merkle_block_3_and_serialize)
 
     CBloomFilter filter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
     // Match the only transaction
-    filter.insert(uint256("0x63194f18be0af63f2c6bc9dc0f777cbefed3d9415c4af83f3ee3a3d669c00cb5"));
+    filter.insert(uint256S("0x63194f18be0af63f2c6bc9dc0f777cbefed3d9415c4af83f3ee3a3d669c00cb5"));
 
     CMerkleBlock merkleBlock(block, filter);
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
 
     BOOST_CHECK(merkleBlock.vMatchedTxn.size() == 1);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256("0x63194f18be0af63f2c6bc9dc0f777cbefed3d9415c4af83f3ee3a3d669c00cb5"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256S("0x63194f18be0af63f2c6bc9dc0f777cbefed3d9415c4af83f3ee3a3d669c00cb5"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[0].first == 0);
 
     vector<uint256> vMatched;
@@ -377,7 +378,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_4)
 
     CBloomFilter filter(10, 0.000001, 0, BLOOM_UPDATE_ALL);
     // Match the last transaction
-    filter.insert(uint256("0x0a2a92f0bda4727d0a13eaddf4dd9ac6b5c61a1429e6b2b818f19b15df0ac154"));
+    filter.insert(uint256S("0x0a2a92f0bda4727d0a13eaddf4dd9ac6b5c61a1429e6b2b818f19b15df0ac154"));
 
     CMerkleBlock merkleBlock(block, filter);
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
@@ -385,7 +386,7 @@ BOOST_AUTO_TEST_CASE(merkle_block_4)
     BOOST_CHECK(merkleBlock.vMatchedTxn.size() == 1);
     pair<unsigned int, uint256> pair = merkleBlock.vMatchedTxn[0];
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256("0x0a2a92f0bda4727d0a13eaddf4dd9ac6b5c61a1429e6b2b818f19b15df0ac154"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256S("0x0a2a92f0bda4727d0a13eaddf4dd9ac6b5c61a1429e6b2b818f19b15df0ac154"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[0].first == 6);
 
     vector<uint256> vMatched;
@@ -395,13 +396,13 @@ BOOST_AUTO_TEST_CASE(merkle_block_4)
         BOOST_CHECK(vMatched[i] == merkleBlock.vMatchedTxn[i].second);
 
     // Also match the 4th transaction
-    filter.insert(uint256("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"));
+    filter.insert(uint256S("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"));
     merkleBlock = CMerkleBlock(block, filter);
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
 
     BOOST_CHECK(merkleBlock.vMatchedTxn.size() == 2);
 
-    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"));
+    BOOST_CHECK(merkleBlock.vMatchedTxn[0].second == uint256S("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"));
     BOOST_CHECK(merkleBlock.vMatchedTxn[0].first == 3);
 
     BOOST_CHECK(merkleBlock.vMatchedTxn[1] == pair);
@@ -430,9 +431,9 @@ BOOST_AUTO_TEST_CASE(merkle_block_4_test_p2pubkey_only)
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
 
     // We should match the generation outpoint
-    BOOST_CHECK(filter.contains(COutPoint(uint256("0x147caa76786596590baa4e98f5d9f48b86c7765e489f7a6ff3360fe5c674360b"), 0)));
+    BOOST_CHECK(filter.contains(COutPoint(uint256S("0x147caa76786596590baa4e98f5d9f48b86c7765e489f7a6ff3360fe5c674360b"), 0)));
     // ... but not the 4th transaction's output (its not pay-2-pubkey)
-    BOOST_CHECK(!filter.contains(COutPoint(uint256("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"), 0)));
+    BOOST_CHECK(!filter.contains(COutPoint(uint256S("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"), 0)));
 }
 
 BOOST_AUTO_TEST_CASE(merkle_block_4_test_update_none)
@@ -453,8 +454,8 @@ BOOST_AUTO_TEST_CASE(merkle_block_4_test_update_none)
     BOOST_CHECK(merkleBlock.header.GetHash() == block.GetHash());
 
     // We shouldn't match any outpoints (UPDATE_NONE)
-    BOOST_CHECK(!filter.contains(COutPoint(uint256("0x147caa76786596590baa4e98f5d9f48b86c7765e489f7a6ff3360fe5c674360b"), 0)));
-    BOOST_CHECK(!filter.contains(COutPoint(uint256("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"), 0)));
+    BOOST_CHECK(!filter.contains(COutPoint(uint256S("0x147caa76786596590baa4e98f5d9f48b86c7765e489f7a6ff3360fe5c674360b"), 0)));
+    BOOST_CHECK(!filter.contains(COutPoint(uint256S("0x02981fa052f0481dbc5868f4fc2166035a10f27a03cfd2de67326471df5bc041"), 0)));
 }
 
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/checkblock_tests.cpp b/src/test/checkblock_tests.cpp
index fc36b43e16..a4121caa8b 100644
--- a/src/test/checkblock_tests.cpp
+++ b/src/test/checkblock_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2013-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 //
diff --git a/src/test/compress_tests.cpp b/src/test/compress_tests.cpp
index bf404cf0cf..b4e4f2046f 100644
--- a/src/test/compress_tests.cpp
+++ b/src/test/compress_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "compressor.h"
diff --git a/src/test/crypto_tests.cpp b/src/test/crypto_tests.cpp
index 26708f5071..d5e595cd8a 100644
--- a/src/test/crypto_tests.cpp
+++ b/src/test/crypto_tests.cpp
@@ -1,8 +1,7 @@
 // Copyright (c) 2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include "crypto/rfc6979_hmac_sha256.h"
 #include "crypto/ripemd160.h"
 #include "crypto/sha1.h"
 #include "crypto/sha256.h"
@@ -248,38 +247,4 @@ BOOST_AUTO_TEST_CASE(hmac_sha512_testvectors) {
                    "b6022cac3c4982b10d5eeb55c3e4de15134676fb6de0446065c97440fa8c6a58");
 }
 
-void TestRFC6979(const std::string& hexkey, const std::string& hexmsg, const std::vector<std::string>& hexout)
-{
-    std::vector<unsigned char> key = ParseHex(hexkey);
-    std::vector<unsigned char> msg = ParseHex(hexmsg);
-    RFC6979_HMAC_SHA256 rng(&key[0], key.size(), &msg[0], msg.size());
-
-    for (unsigned int i = 0; i < hexout.size(); i++) {
-        std::vector<unsigned char> out = ParseHex(hexout[i]);
-        std::vector<unsigned char> gen;
-        gen.resize(out.size());
-        rng.Generate(&gen[0], gen.size());
-        BOOST_CHECK(out == gen);
-    }
-}
-
-BOOST_AUTO_TEST_CASE(rfc6979_hmac_sha256)
-{
-    TestRFC6979(
-        "0102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f00",
-        "4bf5122f344554c53bde2ebb8cd2b7e3d1600ad631c385a5d7cce23c7785459a",
-        boost::assign::list_of
-            ("4fe29525b2086809159acdf0506efb86b0ec932c7ba44256ab321e421e67e9fb")
-            ("2bf0fff1d3c378a22dc5de1d856522325c65b504491a0cbd01cb8f3aa67ffd4a")
-            ("f528b410cb541f77000d7afb6c5b53c5c471eab43e466d9ac5190c39c82fd82e"));
-
-    TestRFC6979(
-        "FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF",
-        "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
-        boost::assign::list_of
-            ("9c236c165b82ae0cd590659e100b6bab3036e7ba8b06749baf6981e16f1a2b95")
-            ("df471061625bc0ea14b682feee2c9c02f235da04204c1d62a1536c6e17aed7a9")
-            ("7597887cbd76321f32e30440679a22cf7f8d9d2eac390e581fea091ce202ba94"));
-}
-
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/data/README.md b/src/test/data/README.md
index f69a021ca0..2463daa42a 100644
--- a/src/test/data/README.md
+++ b/src/test/data/README.md
@@ -6,9 +6,7 @@ This directory contains data-driven tests for various aspects of Bitcoin.
 License
 --------
 
-The data files in this directory are
-
-    Copyright (c) 2012-2014 The Bitcoin Core developers
-    Distributed under the MIT/X11 software license, see the accompanying
-    file COPYING or http://www.opensource.org/licenses/mit-license.php.
+The data files in this directory are distributed under the MIT software
+license, see the accompanying file COPYING or
+http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/test/data/bitcoin-util-test.json b/src/test/data/bitcoin-util-test.json
index f8424b72a3..6090421cb6 100644
--- a/src/test/data/bitcoin-util-test.json
+++ b/src/test/data/bitcoin-util-test.json
@@ -46,5 +46,15 @@
   { "exec": "./bitcoin-tx",
     "args": ["-create", "outscript=0:"],
     "output_cmp": "txcreate2.hex"
+  },
+  { "exec": "./bitcoin-tx",
+    "args":
+    ["-create",
+     "in=4d49a71ec9da436f71ec4ee231d04f292a29cd316f598bb7068feccabdc59485:0",
+     "set=privatekeys:[\"5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf\"]",
+     "set=prevtxs:[{\"txid\":\"4d49a71ec9da436f71ec4ee231d04f292a29cd316f598bb7068feccabdc59485\",\"vout\":0,\"scriptPubKey\":\"4d49a71ec9da436f71ec4ee231d04f292a29cd316f598bb7068feccabdc59485\"}]",
+     "sign=ALL",
+     "outaddr=0.001:193P6LtvS4nCnkDvM9uXn1gsSRqh4aDAz7"],
+    "output_cmp": "txcreatesign.hex"
   }
 ]
diff --git a/src/test/data/script_invalid.json b/src/test/data/script_invalid.json
index c454b52976..a67c157aff 100644
--- a/src/test/data/script_invalid.json
+++ b/src/test/data/script_invalid.json
@@ -1,12 +1,10 @@
 [
-["
-Format is: [scriptPubKey, scriptSig, flags, ... comments]
-It is evaluated as if there was a crediting coinbase transaction with two 0
-pushes as scriptSig, and one output of 0 satoshi and given scriptPubKey,
-followed by a spending transaction which spends this output as only input (and
-correct prevout hash), using the given scriptSig. All nLockTimes are 0, all
-nSequences are max.
-"],
+["Format is: [scriptSig, scriptPubKey, flags, ... comments]"],
+["It is evaluated as if there was a crediting coinbase transaction with two 0"],
+["pushes as scriptSig, and one output of 0 satoshi and given scriptPubKey,"],
+["followed by a spending transaction which spends this output as only input (and"],
+["correct prevout hash), using the given scriptSig. All nLockTimes are 0, all"],
+["nSequences are max."],
 
 ["", "DEPTH", "P2SH,STRICTENC",   "Test the test: we should have an empty stack after scriptSig evaluation"],
 ["  ", "DEPTH", "P2SH,STRICTENC", "and multiple spaces should not change that."],
@@ -496,11 +494,9 @@ nSequences are max.
 ["0 0x02 0x0000 0", "CHECKMULTISIGVERIFY 1", "MINIMALDATA"],
 
 
-["
-Order of CHECKMULTISIG evaluation tests, inverted by swapping the order of
-pubkeys/signatures so they fail due to the STRICTENC rules on validly encoded
-signatures and pubkeys.
-"],
+["Order of CHECKMULTISIG evaluation tests, inverted by swapping the order of"],
+["pubkeys/signatures so they fail due to the STRICTENC rules on validly encoded"],
+["signatures and pubkeys."],
 [
     "0 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501",
     "2 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 0 2 CHECKMULTISIG NOT",
@@ -508,12 +504,22 @@ signatures and pubkeys.
     "2-of-2 CHECKMULTISIG NOT with the first pubkey invalid, and both signatures validly encoded."
 ],
 [
-    "0 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501 0",
+    "0 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501 1",
     "2 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 2 CHECKMULTISIG NOT",
     "STRICTENC",
     "2-of-2 CHECKMULTISIG NOT with both pubkeys valid, but first signature invalid."
 ],
 
+["Increase DERSIG test coverage"],
+["0x4a 0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", "0 CHECKSIG NOT", "DERSIG", "Overly long signature is incorrectly encoded for DERSIG"],
+["0x25 0x30220220000000000000000000000000000000000000000000000000000000000000000000", "0 CHECKSIG NOT", "DERSIG", "Missing S is incorrectly encoded for DERSIG"],
+["0x27 0x3024021077777777777777777777777777777777020a7777777777777777777777777777777701", "0 CHECKSIG NOT", "DERSIG", "S with invalid S length is incorrectly encoded for DERSIG"],
+["0x27 0x302403107777777777777777777777777777777702107777777777777777777777777777777701", "0 CHECKSIG NOT", "DERSIG", "Non-integer R is incorrectly encoded for DERSIG"],
+["0x27 0x302402107777777777777777777777777777777703107777777777777777777777777777777701", "0 CHECKSIG NOT", "DERSIG", "Non-integer S is incorrectly encoded for DERSIG"],
+["0x17 0x3014020002107777777777777777777777777777777701", "0 CHECKSIG NOT", "DERSIG", "Zero-length R is incorrectly encoded for DERSIG"],
+["0x17 0x3014021077777777777777777777777777777777020001", "0 CHECKSIG NOT", "DERSIG", "Zero-length S is incorrectly encoded for DERSIG"],
+["0x27 0x302402107777777777777777777777777777777702108777777777777777777777777777777701", "0 CHECKSIG NOT", "DERSIG", "Negative S is incorrectly encoded for DERSIG"],
+
 ["Automatically generated test cases"],
 [
     "0x47 0x3044022053205076a7bb12d2db3162a2d97d8197631f829b065948b7019b15482af819a902204328dcc02c994ca086b1226d0d5f1674d23cfae0d846143df812b81cab3391e801",
@@ -594,6 +600,102 @@ signatures and pubkeys.
     "P2PK NOT with too much R padding"
 ],
 [
+    "0x47 0x30440220d7a0417c3f6d1a15094d1cf2a3378ca0503eb8a57630953a9e2987e21ddd0a6502207a6266d686c99090920249991d3d42065b6d43eb70187b219c0db82e4f94d1a201",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG",
+    "DERSIG",
+    "BIP66 example 1, with DERSIG"
+],
+[
+    "0x47 0x304402208e43c0b91f7c1e5bc58e41c8185f8a6086e111b0090187968a86f2822462d3c902200a58f4076b1133b18ff1dc83ee51676e44c60cc608d9534e0df5ace0424fc0be01",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG NOT",
+    "",
+    "BIP66 example 2, without DERSIG"
+],
+[
+    "0x47 0x304402208e43c0b91f7c1e5bc58e41c8185f8a6086e111b0090187968a86f2822462d3c902200a58f4076b1133b18ff1dc83ee51676e44c60cc608d9534e0df5ace0424fc0be01",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG NOT",
+    "DERSIG",
+    "BIP66 example 2, with DERSIG"
+],
+[
+    "0",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG",
+    "",
+    "BIP66 example 3, without DERSIG"
+],
+[
+    "0",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG",
+    "DERSIG",
+    "BIP66 example 3, with DERSIG"
+],
+[
+    "1",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG",
+    "",
+    "BIP66 example 5, without DERSIG"
+],
+[
+    "1",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG",
+    "DERSIG",
+    "BIP66 example 5, with DERSIG"
+],
+[
+    "1",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG NOT",
+    "DERSIG",
+    "BIP66 example 6, with DERSIG"
+],
+[
+    "0 0x47 0x30440220cae00b1444babfbf6071b0ba8707f6bd373da3df494d6e74119b0430c5db810502205d5231b8c5939c8ff0c82242656d6e06edb073d42af336c99fe8837c36ea39d501 0x47 0x304402200b3d0b0375bb15c14620afa4aa10ae90a0d6a046ce217bc20fe0bc1ced68c1b802204b550acab90ae6d3478057c9ad24f9df743815b799b6449dd7e7f6d3bc6e274c01",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG",
+    "DERSIG",
+    "BIP66 example 7, with DERSIG"
+],
+[
+    "0 0x47 0x30440220f00a77260d34ec2f0c59621dc710f58169d0ca06df1a88cd4b1f1b97bd46991b02201ee220c7e04f26aed03f94aa97fb09ca5627163bf4ba07e6979972ec737db22601 0x47 0x3044022079ea80afd538d9ada421b5101febeb6bc874e01dde5bca108c1d0479aec339a4022004576db8f66130d1df686ccf00935703689d69cf539438da1edab208b0d63c4801",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG NOT",
+    "",
+    "BIP66 example 8, without DERSIG"
+],
+[
+    "0 0x47 0x30440220f00a77260d34ec2f0c59621dc710f58169d0ca06df1a88cd4b1f1b97bd46991b02201ee220c7e04f26aed03f94aa97fb09ca5627163bf4ba07e6979972ec737db22601 0x47 0x3044022079ea80afd538d9ada421b5101febeb6bc874e01dde5bca108c1d0479aec339a4022004576db8f66130d1df686ccf00935703689d69cf539438da1edab208b0d63c4801",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG NOT",
+    "DERSIG",
+    "BIP66 example 8, with DERSIG"
+],
+[
+    "0 0 0x47 0x3044022081aa9d436f2154e8b6d600516db03d78de71df685b585a9807ead4210bd883490220534bb6bdf318a419ac0749660b60e78d17d515558ef369bf872eff405b676b2e01",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG",
+    "",
+    "BIP66 example 9, without DERSIG"
+],
+[
+    "0 0 0x47 0x3044022081aa9d436f2154e8b6d600516db03d78de71df685b585a9807ead4210bd883490220534bb6bdf318a419ac0749660b60e78d17d515558ef369bf872eff405b676b2e01",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG",
+    "DERSIG",
+    "BIP66 example 9, with DERSIG"
+],
+[
+    "0 0 0x47 0x30440220afa76a8f60622f813b05711f051c6c3407e32d1b1b70b0576c1f01b54e4c05c702200d58e9df044fd1845cabfbeef6e624ba0401daf7d7e084736f9ff601c3783bf501",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG NOT",
+    "DERSIG",
+    "BIP66 example 10, with DERSIG"
+],
+[
+    "0 0x47 0x30440220cae00b1444babfbf6071b0ba8707f6bd373da3df494d6e74119b0430c5db810502205d5231b8c5939c8ff0c82242656d6e06edb073d42af336c99fe8837c36ea39d501 0",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG",
+    "",
+    "BIP66 example 11, without DERSIG"
+],
+[
+    "0 0x47 0x30440220cae00b1444babfbf6071b0ba8707f6bd373da3df494d6e74119b0430c5db810502205d5231b8c5939c8ff0c82242656d6e06edb073d42af336c99fe8837c36ea39d501 0",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG",
+    "DERSIG",
+    "BIP66 example 11, with DERSIG"
+],
+[
     "0x49 0x304502203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022100ab1e3da73d67e32045a20e0b999e049978ea8d6ee5480d485fcf2ce0d03b2ef05101",
     "0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG",
     "LOW_S",
@@ -671,6 +773,18 @@ signatures and pubkeys.
     "SIGPUSHONLY",
     "P2SH(P2PK) with non-push scriptSig"
 ],
+[
+    "11 0x47 0x3044022053205076a7bb13d2db3162a2d97d8197631f829b065948b7019b15482af819a902204328dcc02c994ca086b1226d0d5f1674d23cfae0d846143df812b81cab3391e801",
+    "0x41 0x0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8 CHECKSIG",
+    "CLEANSTACK,P2SH",
+    "P2PK with unnecessary input"
+],
+[
+    "11 0x47 0x304402202f7505132be14872581f35d74b759212d9da40482653f1ffa3116c3294a4a51702206adbf347a2240ca41c66522b1a22a41693610b76a8e7770645dc721d1635854f01 0x43 0x410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac",
+    "HASH160 0x14 0x31edc23bdafda4639e669f89ad6b2318dd79d032 EQUAL",
+    "CLEANSTACK,P2SH",
+    "P2SH with unnecessary input"
+],
 
 ["The End"]
 ]
diff --git a/src/test/data/script_valid.json b/src/test/data/script_valid.json
index af0f6939c6..fb81fcb1f5 100644
--- a/src/test/data/script_valid.json
+++ b/src/test/data/script_valid.json
@@ -1,12 +1,10 @@
 [
-["
-Format is: [scriptPubKey, scriptSig, flags, ... comments]
-It is evaluated as if there was a crediting coinbase transaction with two 0
-pushes as scriptSig, and one output of 0 satoshi and given scriptPubKey,
-followed by a spending transaction which spends this output as only input (and
-correct prevout hash), using the given scriptSig. All nLockTimes are 0, all
-nSequences are max.
-"],
+["Format is: [scriptSig, scriptPubKey, flags, ... comments]"],
+["It is evaluated as if there was a crediting coinbase transaction with two 0"],
+["pushes as scriptSig, and one output of 0 satoshi and given scriptPubKey,"],
+["followed by a spending transaction which spends this output as only input (and"],
+["correct prevout hash), using the given scriptSig. All nLockTimes are 0, all"],
+["nSequences are max."],
 
 ["", "DEPTH 0 EQUAL", "P2SH,STRICTENC", "Test the test: we should have an empty stack after scriptSig evaluation"],
 ["  ", "DEPTH 0 EQUAL", "P2SH,STRICTENC", "and multiple spaces should not change that."],
@@ -664,16 +662,19 @@ nSequences are max.
 ["0 0 0x02 0x0000", "CHECKMULTISIGVERIFY 1", ""],
 ["0 0x02 0x0000 0", "CHECKMULTISIGVERIFY 1", ""],
 
-["
-CHECKMULTISIG evaluation order tests. CHECKMULTISIG evaluates signatures and
-pubkeys in a specific order, and will exit early if the number of signatures
-left to check is greater than the number of keys left. As STRICTENC fails the
-script when it reaches an invalidly encoded signature or pubkey, we can use it
-to test the exact order in which signatures and pubkeys are evaluated by
-distinguishing CHECKMULTISIG returning false on the stack and the script as a
-whole failing.
-See also the corresponding inverted versions of these tests in script_invalid.json
-"],
+["While not really correctly DER encoded, the empty signature is allowed by"],
+["STRICTENC to provide a compact way to provide a delibrately invalid signature."],
+["0", "0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 CHECKSIG NOT", "STRICTENC"],
+["0 0", "1 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 1 CHECKMULTISIG NOT", "STRICTENC"],
+
+["CHECKMULTISIG evaluation order tests. CHECKMULTISIG evaluates signatures and"],
+["pubkeys in a specific order, and will exit early if the number of signatures"],
+["left to check is greater than the number of keys left. As STRICTENC fails the"],
+["script when it reaches an invalidly encoded signature or pubkey, we can use it"],
+["to test the exact order in which signatures and pubkeys are evaluated by"],
+["distinguishing CHECKMULTISIG returning false on the stack and the script as a"],
+["whole failing."],
+["See also the corresponding inverted versions of these tests in script_invalid.json"],
 [
     "0 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501 0x47 0x3044022044dc17b0887c161bb67ba9635bf758735bdde503e4b0a0987f587f14a4e1143d022009a215772d49a85dae40d8ca03955af26ad3978a0ff965faa12915e9586249a501",
     "2 0 0x21 0x02865c40293a680cb9c020e7b1e106d8c1916d3cef99aa431a56d253e69256dac0 2 CHECKMULTISIG NOT",
@@ -687,6 +688,16 @@ See also the corresponding inverted versions of these tests in script_invalid.js
     "2-of-2 CHECKMULTISIG NOT with both pubkeys valid, but second signature invalid. Valid pubkey fails, and CHECKMULTISIG exits early, prior to evaluation of second invalid signature."
 ],
 
+["Increase test coverage for DERSIG"],
+["0x4a 0x0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", "0 CHECKSIG NOT", "", "Overly long signature is correctly encoded"],
+["0x25 0x30220220000000000000000000000000000000000000000000000000000000000000000000", "0 CHECKSIG NOT", "", "Missing S is correctly encoded"],
+["0x27 0x3024021077777777777777777777777777777777020a7777777777777777777777777777777701", "0 CHECKSIG NOT", "", "S with invalid S length is correctly encoded"],
+["0x27 0x302403107777777777777777777777777777777702107777777777777777777777777777777701", "0 CHECKSIG NOT", "", "Non-integer R is correctly encoded"],
+["0x27 0x302402107777777777777777777777777777777703107777777777777777777777777777777701", "0 CHECKSIG NOT", "", "Non-integer S is correctly encoded"],
+["0x17 0x3014020002107777777777777777777777777777777701", "0 CHECKSIG NOT", "", "Zero-length R is correctly encoded"],
+["0x17 0x3014021077777777777777777777777777777777020001", "0 CHECKSIG NOT", "", "Zero-length S is correctly encoded for DERSIG"],
+["0x27 0x302402107777777777777777777777777777777702108777777777777777777777777777777701", "0 CHECKSIG NOT", "", "Negative S is correctly encoded"],
+
 ["Automatically generated test cases"],
 [
     "0x47 0x3044022053205076a7bb13d2db3162a2d97d8197631f829b065948b7019b15482af819a902204328dcc02c994ca086b1226d0d5f1674d23cfae0d846143df812b81cab3391e801",
@@ -755,6 +766,54 @@ See also the corresponding inverted versions of these tests in script_invalid.js
     "P2PK NOT with bad sig with too much R padding but no DERSIG"
 ],
 [
+    "0x47 0x30440220d7a0417c3f6d1a15094d1cf2a3378ca0503eb8a57630953a9e2987e21ddd0a6502207a6266d686c99090920249991d3d42065b6d43eb70187b219c0db82e4f94d1a201",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG",
+    "",
+    "BIP66 example 1, without DERSIG"
+],
+[
+    "0",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG NOT",
+    "",
+    "BIP66 example 4, without DERSIG"
+],
+[
+    "0",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG NOT",
+    "DERSIG",
+    "BIP66 example 4, with DERSIG"
+],
+[
+    "1",
+    "0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 CHECKSIG NOT",
+    "",
+    "BIP66 example 6, without DERSIG"
+],
+[
+    "0 0x47 0x30440220cae00b1444babfbf6071b0ba8707f6bd373da3df494d6e74119b0430c5db810502205d5231b8c5939c8ff0c82242656d6e06edb073d42af336c99fe8837c36ea39d501 0x47 0x304402200b3d0b0375bb15c14620afa4aa10ae90a0d6a046ce217bc20fe0bc1ced68c1b802204b550acab90ae6d3478057c9ad24f9df743815b799b6449dd7e7f6d3bc6e274c01",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG",
+    "",
+    "BIP66 example 7, without DERSIG"
+],
+[
+    "0 0 0x47 0x30440220afa76a8f60622f813b05711f051c6c3407e32d1b1b70b0576c1f01b54e4c05c702200d58e9df044fd1845cabfbeef6e624ba0401daf7d7e084736f9ff601c3783bf501",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG NOT",
+    "",
+    "BIP66 example 10, without DERSIG"
+],
+[
+    "0 0x47 0x30440220f00a77260d34ec2f0c59621dc710f58169d0ca06df1a88cd4b1f1b97bd46991b02201ee220c7e04f26aed03f94aa97fb09ca5627163bf4ba07e6979972ec737db22601 0",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG NOT",
+    "",
+    "BIP66 example 12, without DERSIG"
+],
+[
+    "0 0x47 0x30440220f00a77260d34ec2f0c59621dc710f58169d0ca06df1a88cd4b1f1b97bd46991b02201ee220c7e04f26aed03f94aa97fb09ca5627163bf4ba07e6979972ec737db22601 0",
+    "2 0x21 0x038282263212c609d9ea2a6e3e172de238d8c39cabd5ac1ca10646e23fd5f51508 0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 2 CHECKMULTISIG NOT",
+    "DERSIG",
+    "BIP66 example 12, with DERSIG"
+],
+[
     "0x49 0x304502203e4516da7253cf068effec6b95c41221c0cf3a8e6ccb8cbf1725b562e9afde2c022100ab1e3da73d67e32045a20e0b999e049978ea8d6ee5480d485fcf2ce0d03b2ef05101",
     "0x21 0x03363d90d447b00c9c99ceac05b6262ee053441c7e55552ffe526bad8f83ff4640 CHECKSIG",
     "",
@@ -820,6 +879,24 @@ See also the corresponding inverted versions of these tests in script_invalid.js
     "SIGPUSHONLY",
     "2-of-2 with two identical keys and sigs pushed"
 ],
+[
+    "11 0x47 0x3044022053205076a7bb13d2db3162a2d97d8197631f829b065948b7019b15482af819a902204328dcc02c994ca086b1226d0d5f1674d23cfae0d846143df812b81cab3391e801",
+    "0x41 0x0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8 CHECKSIG",
+    "P2SH",
+    "P2PK with unnecessary input but no CLEANSTACK"
+],
+[
+    "11 0x47 0x304402202f7505132be14872581f35d74b759212d9da40482653f1ffa3116c3294a4a51702206adbf347a2240ca41c66522b1a22a41693610b76a8e7770645dc721d1635854f01 0x43 0x410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac",
+    "HASH160 0x14 0x31edc23bdafda4639e669f89ad6b2318dd79d032 EQUAL",
+    "P2SH",
+    "P2SH with unnecessary input but no CLEANSTACK"
+],
+[
+    "0x47 0x304402202f7505132be14872581f35d74b759212d9da40482653f1ffa3116c3294a4a51702206adbf347a2240ca41c66522b1a22a41693610b76a8e7770645dc721d1635854f01 0x43 0x410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ac",
+    "HASH160 0x14 0x31edc23bdafda4639e669f89ad6b2318dd79d032 EQUAL",
+    "CLEANSTACK,P2SH",
+    "P2SH with CLEANSTACK"
+],
 
 ["The End"]
 ]
diff --git a/src/test/data/sig_canonical.json b/src/test/data/sig_canonical.json
deleted file mode 100644
index e43a08629a..0000000000
--- a/src/test/data/sig_canonical.json
+++ /dev/null
@@ -1,7 +0,0 @@
-[
-    "300602010002010001",
-    "3008020200ff020200ff01",
-    "304402203932c892e2e550f3af8ee4ce9c215a87f9bb831dcac87b2838e2c2eaa891df0c022030b61dd36543125d56b9f9f3a1f9353189e5af33cdda8d77a5209aec03978fa001",
-    "30450220076045be6f9eca28ff1ec606b833d0b87e70b2a630f5e3a496b110967a40f90a0221008fffd599910eefe00bc803c688c2eca1d2ba7f6b180620eaa03488e6585db6ba01",
-    "3046022100876045be6f9eca28ff1ec606b833d0b87e70b2a630f5e3a496b110967a40f90a0221008fffd599910eefe00bc803c688c2eca1d2ba7f6b180620eaa03488e6585db6ba01"
-]
diff --git a/src/test/data/sig_noncanonical.json b/src/test/data/sig_noncanonical.json
deleted file mode 100644
index d9a6c1cdd8..0000000000
--- a/src/test/data/sig_noncanonical.json
+++ /dev/null
@@ -1,22 +0,0 @@
-[
-    "non-hex strings are ignored",
-
-    "too short:",    "30050201FF020001",
-    "too long:",     "30470221005990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba6105022200002d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "hashtype:",     "304402205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610502202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed11",
-    "type:",         "314402205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610502202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "total length:", "304502205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610502202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "S len oob:",    "301F01205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb101",
-    "R+S:",          "304502205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610502202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed0001",
-
-    "R type:",       "304401205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610502202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "R len = 0:",    "3024020002202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "R<0:",          "304402208990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610502202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "R padded:",     "30450221005990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610502202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-
-
-    "S type:",       "304402205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba610501202d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "S len = 0:",    "302402205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba6105020001",
-    "S<0:",          "304402205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba61050220fd5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01",
-    "S padded:",     "304502205990e0584b2b238e1dfaad8d6ed69ecc1a4a13ac85fc0b31d0df395eb1ba61050221002d5876262c288beb511d061691bf26777344b702b00f8fe28621fe4e566695ed01"
-]
diff --git a/src/test/data/tx_invalid.json b/src/test/data/tx_invalid.json
index 638a705f9f..456e0d2f7b 100644
--- a/src/test/data/tx_invalid.json
+++ b/src/test/data/tx_invalid.json
@@ -103,5 +103,17 @@
 [[["ad503f72c18df5801ee64d76090afe4c607fb2b822e9b7b63c5826c50e22fc3b", 0, "0x21 0x027c3a97665bf283a102a587a62a30a0c102d4d3b141015e2cae6f64e2543113e5 CHECKSIG NOT"]],
 "01000000013bfc220ec526583cb6b7e922b8b27f604cfe0a09764de61e80f58dc1723f50ad0000000000ffffffff0101000000000000002321027c3a97665bf283a102a587a62a30a0c102d4d3b141015e2cae6f64e2543113e5ac00000000", "P2SH"],
 
+
+["Inverted versions of tx_valid CODESEPARATOR IF block tests"],
+
+["CODESEPARATOR in an unexecuted IF block does not change what is hashed"],
+[[["a955032f4d6b0c9bfe8cad8f00a8933790b9c1dc28c82e0f48e75b35da0e4944", 0, "IF CODESEPARATOR ENDIF 0x21 0x0378d430274f8c5ec1321338151e9f27f4c676a008bdf8638d07c0b6be9ab35c71 CHECKSIGVERIFY CODESEPARATOR 1"]],
+"010000000144490eda355be7480f2ec828dcc1b9903793a8008fad8cfe9b0c6b4d2f0355a9000000004a48304502207a6974a77c591fa13dff60cabbb85a0de9e025c09c65a4b2285e47ce8e22f761022100f0efaac9ff8ac36b10721e0aae1fb975c90500b50c56e8a0cc52b0403f0425dd0151ffffffff010000000000000000016a00000000", "P2SH"],
+
+["As above, with the IF block executed"],
+[[["a955032f4d6b0c9bfe8cad8f00a8933790b9c1dc28c82e0f48e75b35da0e4944", 0, "IF CODESEPARATOR ENDIF 0x21 0x0378d430274f8c5ec1321338151e9f27f4c676a008bdf8638d07c0b6be9ab35c71 CHECKSIGVERIFY CODESEPARATOR 1"]],
+"010000000144490eda355be7480f2ec828dcc1b9903793a8008fad8cfe9b0c6b4d2f0355a9000000004a483045022100fa4a74ba9fd59c59f46c3960cf90cbe0d2b743c471d24a3d5d6db6002af5eebb02204d70ec490fd0f7055a7c45f86514336e3a7f03503dacecabb247fc23f15c83510100ffffffff010000000000000000016a00000000", "P2SH"],
+
+
 ["Make diffs cleaner by leaving a comment here without comma at the end"]
 ]
diff --git a/src/test/data/tx_valid.json b/src/test/data/tx_valid.json
index aa8e5ca6c3..182b88ef67 100644
--- a/src/test/data/tx_valid.json
+++ b/src/test/data/tx_valid.json
@@ -149,6 +149,15 @@
 [[["a955032f4d6b0c9bfe8cad8f00a8933790b9c1dc28c82e0f48e75b35da0e4944", 0, "0x21 0x038479a0fa998cd35259a2ef0a7a5c68662c1474f88ccb6d08a7677bbec7f22041 CHECKSIGVERIFY CODESEPARATOR 0x21 0x038479a0fa998cd35259a2ef0a7a5c68662c1474f88ccb6d08a7677bbec7f22041 CHECKSIGVERIFY CODESEPARATOR 1"]],
 "010000000144490eda355be7480f2ec828dcc1b9903793a8008fad8cfe9b0c6b4d2f0355a900000000924830450221009c0a27f886a1d8cb87f6f595fbc3163d28f7a81ec3c4b252ee7f3ac77fd13ffa02203caa8dfa09713c8c4d7ef575c75ed97812072405d932bd11e6a1593a98b679370148304502201e3861ef39a526406bad1e20ecad06be7375ad40ddb582c9be42d26c3a0d7b240221009d0a3985e96522e59635d19cc4448547477396ce0ef17a58e7d74c3ef464292301ffffffff010000000000000000016a00000000", "P2SH"],
 
+["CODESEPARATOR in an unexecuted IF block does not change what is hashed"],
+[[["a955032f4d6b0c9bfe8cad8f00a8933790b9c1dc28c82e0f48e75b35da0e4944", 0, "IF CODESEPARATOR ENDIF 0x21 0x0378d430274f8c5ec1321338151e9f27f4c676a008bdf8638d07c0b6be9ab35c71 CHECKSIGVERIFY CODESEPARATOR 1"]],
+"010000000144490eda355be7480f2ec828dcc1b9903793a8008fad8cfe9b0c6b4d2f0355a9000000004a48304502207a6974a77c591fa13dff60cabbb85a0de9e025c09c65a4b2285e47ce8e22f761022100f0efaac9ff8ac36b10721e0aae1fb975c90500b50c56e8a0cc52b0403f0425dd0100ffffffff010000000000000000016a00000000", "P2SH"],
+
+["As above, with the IF block executed"],
+[[["a955032f4d6b0c9bfe8cad8f00a8933790b9c1dc28c82e0f48e75b35da0e4944", 0, "IF CODESEPARATOR ENDIF 0x21 0x0378d430274f8c5ec1321338151e9f27f4c676a008bdf8638d07c0b6be9ab35c71 CHECKSIGVERIFY CODESEPARATOR 1"]],
+"010000000144490eda355be7480f2ec828dcc1b9903793a8008fad8cfe9b0c6b4d2f0355a9000000004a483045022100fa4a74ba9fd59c59f46c3960cf90cbe0d2b743c471d24a3d5d6db6002af5eebb02204d70ec490fd0f7055a7c45f86514336e3a7f03503dacecabb247fc23f15c83510151ffffffff010000000000000000016a00000000", "P2SH"],
+
+
 ["CHECKSIG is legal in scriptSigs"],
 [[["ccf7f4053a02e653c36ac75c891b7496d0dc5ce5214f6c913d9cf8f1329ebee0", 0, "DUP HASH160 0x14 0xee5a6aa40facefb2655ac23c0c28c57c65c41f9b EQUALVERIFY CHECKSIG"]],
 "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", "P2SH"],
diff --git a/src/test/data/txcreatesign.hex b/src/test/data/txcreatesign.hex
new file mode 100644
index 0000000000..56ce28a865
--- /dev/null
+++ b/src/test/data/txcreatesign.hex
@@ -0,0 +1 @@
+01000000018594c5bdcaec8f06b78b596f31cd292a294fd031e24eec716f43dac91ea7494d0000000000ffffffff01a0860100000000001976a9145834479edbbe0539b31ffd3a8f8ebadc2165ed0188ac00000000
diff --git a/src/test/getarg_tests.cpp b/src/test/getarg_tests.cpp
index 8a984304f4..5fb0f4ccdd 100644
--- a/src/test/getarg_tests.cpp
+++ b/src/test/getarg_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "util.h"
diff --git a/src/test/hash_tests.cpp b/src/test/hash_tests.cpp
index b8e290f071..f1ad25e6ee 100644
--- a/src/test/hash_tests.cpp
+++ b/src/test/hash_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "hash.h"
diff --git a/src/test/key_tests.cpp b/src/test/key_tests.cpp
index 43b18ce61e..1333aba471 100644
--- a/src/test/key_tests.cpp
+++ b/src/test/key_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "key.h"
diff --git a/src/test/main_tests.cpp b/src/test/main_tests.cpp
index bf57dd81d9..2a72a220a4 100644
--- a/src/test/main_tests.cpp
+++ b/src/test/main_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "primitives/transaction.h"
diff --git a/src/test/miner_tests.cpp b/src/test/miner_tests.cpp
index 53c2e7b261..44c57a8eaf 100644
--- a/src/test/miner_tests.cpp
+++ b/src/test/miner_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "main.h"
diff --git a/src/test/mruset_tests.cpp b/src/test/mruset_tests.cpp
index 547cd1090c..813ec9b8b2 100644
--- a/src/test/mruset_tests.cpp
+++ b/src/test/mruset_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "mruset.h"
diff --git a/src/test/multisig_tests.cpp b/src/test/multisig_tests.cpp
index 8d06caa147..2168a5fef1 100644
--- a/src/test/multisig_tests.cpp
+++ b/src/test/multisig_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "key.h"
@@ -15,12 +15,10 @@
 #include "wallet_ismine.h"
 #endif
 
-#include <boost/assign/std/vector.hpp>
 #include <boost/foreach.hpp>
 #include <boost/test/unit_test.hpp>
 
 using namespace std;
-using namespace boost::assign;
 
 typedef vector<unsigned char> valtype;
 
@@ -81,68 +79,62 @@ BOOST_AUTO_TEST_CASE(multisig_verify)
     CScript s;
 
     // Test a AND b:
-    keys.clear();
-    keys += key[0],key[1]; // magic operator+= from boost.assign
+    keys.assign(1,key[0]);
+    keys.push_back(key[1]);
     s = sign_multisig(a_and_b, keys, txTo[0], 0);
-    BOOST_CHECK(VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0), &err));
+    BOOST_CHECK(VerifyScript(s, a_and_b, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     for (int i = 0; i < 4; i++)
     {
-        keys.clear();
-        keys += key[i];
+        keys.assign(1,key[i]);
         s = sign_multisig(a_and_b, keys, txTo[0], 0);
-        BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0), &err), strprintf("a&b 1: %d", i));
+        BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err), strprintf("a&b 1: %d", i));
         BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err));
 
-        keys.clear();
-        keys += key[1],key[i];
+        keys.assign(1,key[1]);
+        keys.push_back(key[i]);
         s = sign_multisig(a_and_b, keys, txTo[0], 0);
-        BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, SignatureChecker(txTo[0], 0), &err), strprintf("a&b 2: %d", i));
+        BOOST_CHECK_MESSAGE(!VerifyScript(s, a_and_b, flags, MutableTransactionSignatureChecker(&txTo[0], 0), &err), strprintf("a&b 2: %d", i));
         BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
     }
 
     // Test a OR b:
     for (int i = 0; i < 4; i++)
     {
-        keys.clear();
-        keys += key[i];
+        keys.assign(1,key[i]);
         s = sign_multisig(a_or_b, keys, txTo[1], 0);
         if (i == 0 || i == 1)
         {
-            BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err), strprintf("a|b: %d", i));
+            BOOST_CHECK_MESSAGE(VerifyScript(s, a_or_b, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err), strprintf("a|b: %d", i));
             BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
         }
         else
         {
-            BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err), strprintf("a|b: %d", i));
+            BOOST_CHECK_MESSAGE(!VerifyScript(s, a_or_b, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err), strprintf("a|b: %d", i));
             BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
         }
     }
     s.clear();
-    s << OP_0 << OP_0;
-    BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err));
-    BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
-    s.clear();
     s << OP_0 << OP_1;
-    BOOST_CHECK(!VerifyScript(s, a_or_b, flags, SignatureChecker(txTo[1], 0), &err));
+    BOOST_CHECK(!VerifyScript(s, a_or_b, flags, MutableTransactionSignatureChecker(&txTo[1], 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_SIG_DER, ScriptErrorString(err));
 
 
     for (int i = 0; i < 4; i++)
         for (int j = 0; j < 4; j++)
         {
-            keys.clear();
-            keys += key[i],key[j];
+            keys.assign(1,key[i]);
+            keys.push_back(key[j]);
             s = sign_multisig(escrow, keys, txTo[2], 0);
             if (i < j && i < 3 && j < 3)
             {
-                BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, flags, SignatureChecker(txTo[2], 0), &err), strprintf("escrow 1: %d %d", i, j));
+                BOOST_CHECK_MESSAGE(VerifyScript(s, escrow, flags, MutableTransactionSignatureChecker(&txTo[2], 0), &err), strprintf("escrow 1: %d %d", i, j));
                 BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
             }
             else
             {
-                BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, flags, SignatureChecker(txTo[2], 0), &err), strprintf("escrow 2: %d %d", i, j));
+                BOOST_CHECK_MESSAGE(!VerifyScript(s, escrow, flags, MutableTransactionSignatureChecker(&txTo[2], 0), &err), strprintf("escrow 2: %d %d", i, j));
                 BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
             }
         }
diff --git a/src/test/netbase_tests.cpp b/src/test/netbase_tests.cpp
index c26e738384..9361459949 100644
--- a/src/test/netbase_tests.cpp
+++ b/src/test/netbase_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "netbase.h"
diff --git a/src/test/pmt_tests.cpp b/src/test/pmt_tests.cpp
index 9dce4daac6..4406b08e56 100644
--- a/src/test/pmt_tests.cpp
+++ b/src/test/pmt_tests.cpp
@@ -1,13 +1,18 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
-#include "main.h"
+#include "merkleblock.h"
 #include "serialize.h"
+#include "streams.h"
 #include "uint256.h"
+#include "arith_uint256.h"
+#include "version.h"
+#include "random.h"
 
 #include <vector>
 
+#include <boost/assign/list_of.hpp>
 #include <boost/test/unit_test.hpp>
 
 using namespace std;
@@ -17,10 +22,9 @@ class CPartialMerkleTreeTester : public CPartialMerkleTree
 public:
     // flip one bit in one of the hashes - this should break the authentication
     void Damage() {
-        unsigned int n = rand() % vHash.size();
-        int bit = rand() % 256;
-        uint256 &hash = vHash[n];
-        hash ^= ((uint256)1 << bit);
+        unsigned int n = insecure_rand() % vHash.size();
+        int bit = insecure_rand() % 256;
+        *(vHash[n].begin() + (bit>>3)) ^= 1<<(bit&7);
     }
 };
 
@@ -28,6 +32,7 @@ BOOST_AUTO_TEST_SUITE(pmt_tests)
 
 BOOST_AUTO_TEST_CASE(pmt_test1)
 {
+    seed_insecure_rand(false);
     static const unsigned int nTxCounts[] = {1, 4, 7, 17, 56, 100, 127, 256, 312, 513, 1000, 4095};
 
     for (int n = 0; n < 12; n++) {
@@ -37,13 +42,13 @@ BOOST_AUTO_TEST_CASE(pmt_test1)
         CBlock block;
         for (unsigned int j=0; j<nTx; j++) {
             CMutableTransaction tx;
-            tx.nLockTime = rand(); // actual transaction data doesn't matter; just make the nLockTime's unique
+            tx.nLockTime = j; // actual transaction data doesn't matter; just make the nLockTime's unique
             block.vtx.push_back(CTransaction(tx));
         }
 
         // calculate actual merkle root and height
         uint256 merkleRoot1 = block.BuildMerkleTree();
-        std::vector<uint256> vTxid(nTx, 0);
+        std::vector<uint256> vTxid(nTx, uint256());
         for (unsigned int j=0; j<nTx; j++)
             vTxid[j] = block.vtx[j].GetHash();
         int nHeight = 1, nTx_ = nTx;
@@ -58,7 +63,7 @@ BOOST_AUTO_TEST_CASE(pmt_test1)
             std::vector<bool> vMatch(nTx, false);
             std::vector<uint256> vMatchTxid1;
             for (unsigned int j=0; j<nTx; j++) {
-                bool fInclude = (rand() & ((1 << (att/2)) - 1)) == 0;
+                bool fInclude = (insecure_rand() & ((1 << (att/2)) - 1)) == 0;
                 vMatch[j] = fInclude;
                 if (fInclude)
                     vMatchTxid1.push_back(vTxid[j]);
@@ -85,7 +90,7 @@ BOOST_AUTO_TEST_CASE(pmt_test1)
 
             // check that it has the same merkle root as the original, and a valid one
             BOOST_CHECK(merkleRoot1 == merkleRoot2);
-            BOOST_CHECK(merkleRoot2 != 0);
+            BOOST_CHECK(!merkleRoot2.IsNull());
 
             // check that it contains the matched transactions (in the same order!)
             BOOST_CHECK(vMatchTxid1 == vMatchTxid2);
@@ -102,4 +107,20 @@ BOOST_AUTO_TEST_CASE(pmt_test1)
     }
 }
 
+BOOST_AUTO_TEST_CASE(pmt_malleability)
+{
+    std::vector<uint256> vTxid = boost::assign::list_of
+        (ArithToUint256(1))(ArithToUint256(2))
+        (ArithToUint256(3))(ArithToUint256(4))
+        (ArithToUint256(5))(ArithToUint256(6))
+        (ArithToUint256(7))(ArithToUint256(8))
+        (ArithToUint256(9))(ArithToUint256(10))
+        (ArithToUint256(9))(ArithToUint256(10));
+    std::vector<bool> vMatch = boost::assign::list_of(false)(false)(false)(false)(false)(false)(false)(false)(false)(true)(true)(false);
+
+    CPartialMerkleTree tree(vTxid, vMatch);
+    std::vector<uint256> vTxid2;
+    BOOST_CHECK(tree.ExtractMatches(vTxid).IsNull());
+}
+
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/rpc_tests.cpp b/src/test/rpc_tests.cpp
index d5475a92bf..1c6963001f 100644
--- a/src/test/rpc_tests.cpp
+++ b/src/test/rpc_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "rpcserver.h"
@@ -39,8 +39,7 @@ Value CallRPC(string args)
         Value result = (*method)(params, false);
         return result;
     }
-    catch (Object& objError)
-    {
+    catch (const Object& objError) {
         throw runtime_error(find_value(objError, "message").get_str());
     }
 }
diff --git a/src/test/rpc_wallet_tests.cpp b/src/test/rpc_wallet_tests.cpp
index 91da0c4420..57c49c2dfc 100644
--- a/src/test/rpc_wallet_tests.cpp
+++ b/src/test/rpc_wallet_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2013-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "rpcserver.h"
@@ -93,6 +93,13 @@ BOOST_AUTO_TEST_CASE(rpc_wallet)
     /* 1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4X (33 chars) is an illegal address (should be 34 chars) */
     BOOST_CHECK_THROW(CallRPC("setaccount 1D1ZrZNe3JUo7ZycKEYQQiQAWd9y54F4X nullaccount"), runtime_error);
 
+
+    /*********************************
+     *                  getbalance
+     *********************************/
+    BOOST_CHECK_NO_THROW(CallRPC("getbalance"));
+    BOOST_CHECK_NO_THROW(CallRPC("getbalance " + demoAddress.ToString()));
+
     /*********************************
      * 			listunspent
      *********************************/
@@ -125,6 +132,35 @@ BOOST_AUTO_TEST_CASE(rpc_wallet)
     BOOST_CHECK_THROW(CallRPC("listreceivedbyaccount 0 true extra"), runtime_error);
 
     /*********************************
+     *          listsinceblock
+     *********************************/
+    BOOST_CHECK_NO_THROW(CallRPC("listsinceblock"));
+
+    /*********************************
+     *          listtransactions
+     *********************************/
+    BOOST_CHECK_NO_THROW(CallRPC("listtransactions"));
+    BOOST_CHECK_NO_THROW(CallRPC("listtransactions " + demoAddress.ToString()));
+    BOOST_CHECK_NO_THROW(CallRPC("listtransactions " + demoAddress.ToString() + " 20"));
+    BOOST_CHECK_NO_THROW(CallRPC("listtransactions " + demoAddress.ToString() + " 20 0"));
+    BOOST_CHECK_THROW(CallRPC("listtransactions " + demoAddress.ToString() + " not_int"), runtime_error);
+
+    /*********************************
+     *          listlockunspent
+     *********************************/
+    BOOST_CHECK_NO_THROW(CallRPC("listlockunspent"));
+
+    /*********************************
+     *          listaccounts
+     *********************************/
+    BOOST_CHECK_NO_THROW(CallRPC("listaccounts"));
+
+    /*********************************
+     *          listaddressgroupings
+     *********************************/
+    BOOST_CHECK_NO_THROW(CallRPC("listaddressgroupings"));
+
+    /*********************************
      * 		getrawchangeaddress
      *********************************/
     BOOST_CHECK_NO_THROW(CallRPC("getrawchangeaddress"));
@@ -179,5 +215,4 @@ BOOST_AUTO_TEST_CASE(rpc_wallet)
     BOOST_CHECK(CBitcoinAddress(arr[0].get_str()).Get() == demoAddress.Get());
 }
 
-
 BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/sanity_tests.cpp b/src/test/sanity_tests.cpp
new file mode 100644
index 0000000000..464a8fbb8c
--- /dev/null
+++ b/src/test/sanity_tests.cpp
@@ -0,0 +1,18 @@
+// Copyright (c) 2012-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include "compat/sanity.h"
+#include "key.h"
+
+#include <boost/test/unit_test.hpp>
+BOOST_AUTO_TEST_SUITE(sanity_tests)
+
+BOOST_AUTO_TEST_CASE(basic_sanity)
+{
+  BOOST_CHECK_MESSAGE(glibc_sanity_test() == true, "libc sanity test");
+  BOOST_CHECK_MESSAGE(glibcxx_sanity_test() == true, "stdlib sanity test");
+  BOOST_CHECK_MESSAGE(ECC_InitSanityCheck() == true, "openssl ECC test");
+}
+
+BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/script_P2SH_tests.cpp b/src/test/script_P2SH_tests.cpp
index a969eefa05..94f2ce1a29 100644
--- a/src/test/script_P2SH_tests.cpp
+++ b/src/test/script_P2SH_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "key.h"
@@ -43,7 +43,7 @@ Verify(const CScript& scriptSig, const CScript& scriptPubKey, bool fStrict, Scri
     txTo.vin[0].scriptSig = scriptSig;
     txTo.vout[0].nValue = 1;
 
-    return VerifyScript(scriptSig, scriptPubKey, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, SignatureChecker(txTo, 0), &err);
+    return VerifyScript(scriptSig, scriptPubKey, fStrict ? SCRIPT_VERIFY_P2SH : SCRIPT_VERIFY_NONE, MutableTransactionSignatureChecker(&txTo, 0), &err);
 }
 
 
@@ -210,7 +210,7 @@ BOOST_AUTO_TEST_CASE(set)
 BOOST_AUTO_TEST_CASE(is)
 {
     // Test CScript::IsPayToScriptHash()
-    uint160 dummy(0);
+    uint160 dummy;
     CScript p2sh;
     p2sh << OP_HASH160 << ToByteVector(dummy) << OP_EQUAL;
     BOOST_CHECK(p2sh.IsPayToScriptHash());
diff --git a/src/test/script_tests.cpp b/src/test/script_tests.cpp
index 4d2a9aff45..6092afd782 100644
--- a/src/test/script_tests.cpp
+++ b/src/test/script_tests.cpp
@@ -23,12 +23,6 @@
 #include <string>
 #include <vector>
 
-#include <boost/algorithm/string/classification.hpp>
-#include <boost/algorithm/string/predicate.hpp>
-#include <boost/algorithm/string/replace.hpp>
-#include <boost/algorithm/string/split.hpp>
-#include <boost/filesystem/operations.hpp>
-#include <boost/filesystem/path.hpp>
 #include <boost/foreach.hpp>
 #include <boost/test/unit_test.hpp>
 #include "json/json_spirit_reader_template.h"
@@ -37,7 +31,6 @@
 
 using namespace std;
 using namespace json_spirit;
-using namespace boost::algorithm;
 
 // Uncomment if you want to output updated JSON tests.
 // #define UPDATE_JSON_TESTS
@@ -100,7 +93,7 @@ void DoTest(const CScript& scriptPubKey, const CScript& scriptSig, int flags, bo
     ScriptError err;
     CMutableTransaction tx = BuildSpendingTransaction(scriptSig, BuildCreditingTransaction(scriptPubKey));
     CMutableTransaction tx2 = tx;
-    BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, flags, SignatureChecker(tx, 0), &err) == expect, message);
+    BOOST_CHECK_MESSAGE(VerifyScript(scriptSig, scriptPubKey, flags, MutableTransactionSignatureChecker(&tx, 0), &err) == expect, message);
     BOOST_CHECK_MESSAGE(expect == (err == SCRIPT_ERR_OK), std::string(ScriptErrorString(err)) + ": " + message);
 #if defined(HAVE_CONSENSUS_LIB)
     CDataStream stream(SER_NETWORK, PROTOCOL_VERSION);
@@ -413,6 +406,79 @@ BOOST_AUTO_TEST_CASE(script_build)
                               "P2PK NOT with too much R padding", SCRIPT_VERIFY_DERSIG
                              ).PushSig(keys.key2, SIGHASH_ALL, 31, 32).EditPush(1, "43021F", "44022000"));
 
+    good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG,
+                               "BIP66 example 1, without DERSIG", 0
+                              ).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG,
+                              "BIP66 example 1, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG << OP_NOT,
+                              "BIP66 example 2, without DERSIG", 0
+                             ).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG << OP_NOT,
+                              "BIP66 example 2, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG,
+                              "BIP66 example 3, without DERSIG", 0
+                             ).Num(0));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG,
+                              "BIP66 example 3, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(0));
+    good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG << OP_NOT,
+                               "BIP66 example 4, without DERSIG", 0
+                              ).Num(0));
+    good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG << OP_NOT,
+                               "BIP66 example 4, with DERSIG", SCRIPT_VERIFY_DERSIG
+                              ).Num(0));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG,
+                              "BIP66 example 5, without DERSIG", 0
+                             ).Num(1));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG,
+                              "BIP66 example 5, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(1));
+    good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG << OP_NOT,
+                               "BIP66 example 6, without DERSIG", 0
+                              ).Num(1));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey1C) << OP_CHECKSIG << OP_NOT,
+                              "BIP66 example 6, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(1));
+    good.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG,
+                               "BIP66 example 7, without DERSIG", 0
+                              ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").PushSig(keys.key2));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG,
+                              "BIP66 example 7, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").PushSig(keys.key2));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT,
+                              "BIP66 example 8, without DERSIG", 0
+                             ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").PushSig(keys.key2));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT,
+                              "BIP66 example 8, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").PushSig(keys.key2));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG,
+                              "BIP66 example 9, without DERSIG", 0
+                             ).Num(0).Num(0).PushSig(keys.key2, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG,
+                              "BIP66 example 9, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(0).Num(0).PushSig(keys.key2, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    good.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT,
+                               "BIP66 example 10, without DERSIG", 0
+                              ).Num(0).Num(0).PushSig(keys.key2, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT,
+                              "BIP66 example 10, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(0).Num(0).PushSig(keys.key2, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220"));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG,
+                              "BIP66 example 11, without DERSIG", 0
+                             ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").Num(0));
+    bad.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG,
+                              "BIP66 example 11, with DERSIG", SCRIPT_VERIFY_DERSIG
+                             ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").Num(0));
+    good.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT,
+                               "BIP66 example 12, without DERSIG", 0
+                              ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").Num(0));
+    good.push_back(TestBuilder(CScript() << OP_2 << ToByteVector(keys.pubkey1C) << ToByteVector(keys.pubkey2C) << OP_2 << OP_CHECKMULTISIG << OP_NOT,
+                               "BIP66 example 12, with DERSIG", SCRIPT_VERIFY_DERSIG
+                              ).Num(0).PushSig(keys.key1, SIGHASH_ALL, 33, 32).EditPush(1, "45022100", "440220").Num(0));
+
     good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey2C) << OP_CHECKSIG,
                                "P2PK with high S but no LOW_S", 0
                               ).PushSig(keys.key2, SIGHASH_ALL, 32, 33));
@@ -490,6 +556,22 @@ BOOST_AUTO_TEST_CASE(script_build)
                                "2-of-2 with two identical keys and sigs pushed", SCRIPT_VERIFY_SIGPUSHONLY
                               ).Num(0).PushSig(keys.key1).PushSig(keys.key1));
 
+    good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG,
+                               "P2PK with unnecessary input but no CLEANSTACK", SCRIPT_VERIFY_P2SH
+                              ).Num(11).PushSig(keys.key0));
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG,
+                              "P2PK with unnecessary input", SCRIPT_VERIFY_CLEANSTACK | SCRIPT_VERIFY_P2SH
+                             ).Num(11).PushSig(keys.key0));
+    good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG,
+                               "P2SH with unnecessary input but no CLEANSTACK", SCRIPT_VERIFY_P2SH, true
+                              ).Num(11).PushSig(keys.key0).PushRedeem());
+    bad.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG,
+                              "P2SH with unnecessary input", SCRIPT_VERIFY_CLEANSTACK | SCRIPT_VERIFY_P2SH, true
+                             ).Num(11).PushSig(keys.key0).PushRedeem());
+    good.push_back(TestBuilder(CScript() << ToByteVector(keys.pubkey0) << OP_CHECKSIG,
+                               "P2SH with CLEANSTACK", SCRIPT_VERIFY_CLEANSTACK | SCRIPT_VERIFY_P2SH, true
+                              ).PushSig(keys.key0).PushRedeem());
+
 
     std::set<std::string> tests_good;
     std::set<std::string> tests_bad;
@@ -607,21 +689,21 @@ BOOST_AUTO_TEST_CASE(script_PushData)
 
     ScriptError err;
     vector<vector<unsigned char> > directStack;
-    BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), true, BaseSignatureChecker(), &err));
+    BOOST_CHECK(EvalScript(directStack, CScript(&direct[0], &direct[sizeof(direct)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     vector<vector<unsigned char> > pushdata1Stack;
-    BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), true, BaseSignatureChecker(), &err));
+    BOOST_CHECK(EvalScript(pushdata1Stack, CScript(&pushdata1[0], &pushdata1[sizeof(pushdata1)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err));
     BOOST_CHECK(pushdata1Stack == directStack);
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     vector<vector<unsigned char> > pushdata2Stack;
-    BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), true, BaseSignatureChecker(), &err));
+    BOOST_CHECK(EvalScript(pushdata2Stack, CScript(&pushdata2[0], &pushdata2[sizeof(pushdata2)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err));
     BOOST_CHECK(pushdata2Stack == directStack);
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     vector<vector<unsigned char> > pushdata4Stack;
-    BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), true, BaseSignatureChecker(), &err));
+    BOOST_CHECK(EvalScript(pushdata4Stack, CScript(&pushdata4[0], &pushdata4[sizeof(pushdata4)]), SCRIPT_VERIFY_P2SH, BaseSignatureChecker(), &err));
     BOOST_CHECK(pushdata4Stack == directStack);
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 }
@@ -673,18 +755,18 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG12)
     CMutableTransaction txTo12 = BuildSpendingTransaction(CScript(), txFrom12);
 
     CScript goodsig1 = sign_multisig(scriptPubKey12, key1, txTo12);
-    BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
+    BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
     txTo12.vout[0].nValue = 2;
-    BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
+    BOOST_CHECK(!VerifyScript(goodsig1, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
 
     CScript goodsig2 = sign_multisig(scriptPubKey12, key2, txTo12);
-    BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
+    BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     CScript badsig1 = sign_multisig(scriptPubKey12, key3, txTo12);
-    BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, flags, SignatureChecker(txTo12, 0), &err));
+    BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey12, flags, MutableTransactionSignatureChecker(&txTo12, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
 }
 
@@ -706,54 +788,54 @@ BOOST_AUTO_TEST_CASE(script_CHECKMULTISIG23)
     std::vector<CKey> keys;
     keys.push_back(key1); keys.push_back(key2);
     CScript goodsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(VerifyScript(goodsig1, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     keys.clear();
     keys.push_back(key1); keys.push_back(key3);
     CScript goodsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(VerifyScript(goodsig2, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     keys.clear();
     keys.push_back(key2); keys.push_back(key3);
     CScript goodsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(VerifyScript(goodsig3, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
 
     keys.clear();
     keys.push_back(key2); keys.push_back(key2); // Can't re-use sig
     CScript badsig1 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(!VerifyScript(badsig1, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
 
     keys.clear();
     keys.push_back(key2); keys.push_back(key1); // sigs must be in correct order
     CScript badsig2 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(!VerifyScript(badsig2, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
 
     keys.clear();
     keys.push_back(key3); keys.push_back(key2); // sigs must be in correct order
     CScript badsig3 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(!VerifyScript(badsig3, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
 
     keys.clear();
     keys.push_back(key4); keys.push_back(key2); // sigs must match pubkeys
     CScript badsig4 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(!VerifyScript(badsig4, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
 
     keys.clear();
     keys.push_back(key1); keys.push_back(key4); // sigs must match pubkeys
     CScript badsig5 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(!VerifyScript(badsig5, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_EVAL_FALSE, ScriptErrorString(err));
 
     keys.clear(); // Must have signatures
     CScript badsig6 = sign_multisig(scriptPubKey23, keys, txTo23);
-    BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, flags, SignatureChecker(txTo23, 0), &err));
+    BOOST_CHECK(!VerifyScript(badsig6, scriptPubKey23, flags, MutableTransactionSignatureChecker(&txTo23, 0), &err));
     BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_INVALID_STACK_OPERATION, ScriptErrorString(err));
 }    
 
diff --git a/src/test/scriptnum_tests.cpp b/src/test/scriptnum_tests.cpp
index 5621e12729..cfbaf26e70 100644
--- a/src/test/scriptnum_tests.cpp
+++ b/src/test/scriptnum_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "bignum.h"
diff --git a/src/test/serialize_tests.cpp b/src/test/serialize_tests.cpp
index 59e95f2fd1..fe49af711b 100644
--- a/src/test/serialize_tests.cpp
+++ b/src/test/serialize_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "serialize.h"
diff --git a/src/test/sighash_tests.cpp b/src/test/sighash_tests.cpp
index 8abde887ce..ea41dbcde2 100644
--- a/src/test/sighash_tests.cpp
+++ b/src/test/sighash_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "data/sighash.json.h"
@@ -24,10 +24,11 @@ extern Array read_json(const std::string& jsondata);
 // Old script.cpp SignatureHash function
 uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, unsigned int nIn, int nHashType)
 {
+    static const uint256 one(uint256S("0000000000000000000000000000000000000000000000000000000000000001"));
     if (nIn >= txTo.vin.size())
     {
-        printf("ERROR: SignatureHash() : nIn=%d out of range\n", nIn);
-        return 1;
+        printf("ERROR: SignatureHash(): nIn=%d out of range\n", nIn);
+        return one;
     }
     CMutableTransaction txTmp(txTo);
 
@@ -57,8 +58,8 @@ uint256 static SignatureHashOld(CScript scriptCode, const CTransaction& txTo, un
         unsigned int nOut = nIn;
         if (nOut >= txTmp.vout.size())
         {
-            printf("ERROR: SignatureHash() : nOut=%d out of range\n", nOut);
-            return 1;
+            printf("ERROR: SignatureHash(): nOut=%d out of range\n", nOut);
+            return one;
         }
         txTmp.vout.resize(nOut+1);
         for (unsigned int i = 0; i < nOut; i++)
diff --git a/src/test/sigopcount_tests.cpp b/src/test/sigopcount_tests.cpp
index 5bf0862c71..3c8264d89d 100644
--- a/src/test/sigopcount_tests.cpp
+++ b/src/test/sigopcount_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "pubkey.h"
@@ -32,7 +32,7 @@ BOOST_AUTO_TEST_CASE(GetSigOpCount)
     BOOST_CHECK_EQUAL(s1.GetSigOpCount(false), 0U);
     BOOST_CHECK_EQUAL(s1.GetSigOpCount(true), 0U);
 
-    uint160 dummy(0);
+    uint160 dummy;
     s1 << OP_1 << ToByteVector(dummy) << ToByteVector(dummy) << OP_2 << OP_CHECKMULTISIG;
     BOOST_CHECK_EQUAL(s1.GetSigOpCount(true), 2U);
     s1 << OP_IF << OP_CHECKSIG << OP_ENDIF;
diff --git a/src/test/skiplist_tests.cpp b/src/test/skiplist_tests.cpp
index a123f1d197..c75e21a2ad 100644
--- a/src/test/skiplist_tests.cpp
+++ b/src/test/skiplist_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "main.h"
@@ -49,12 +49,12 @@ BOOST_AUTO_TEST_CASE(getlocator_test)
     std::vector<uint256> vHashMain(100000);
     std::vector<CBlockIndex> vBlocksMain(100000);
     for (unsigned int i=0; i<vBlocksMain.size(); i++) {
-        vHashMain[i] = i; // Set the hash equal to the height, so we can quickly check the distances.
+        vHashMain[i] = ArithToUint256(i); // Set the hash equal to the height, so we can quickly check the distances.
         vBlocksMain[i].nHeight = i;
         vBlocksMain[i].pprev = i ? &vBlocksMain[i - 1] : NULL;
         vBlocksMain[i].phashBlock = &vHashMain[i];
         vBlocksMain[i].BuildSkip();
-        BOOST_CHECK_EQUAL((int)vBlocksMain[i].GetBlockHash().GetLow64(), vBlocksMain[i].nHeight);
+        BOOST_CHECK_EQUAL((int)UintToArith256(vBlocksMain[i].GetBlockHash()).GetLow64(), vBlocksMain[i].nHeight);
         BOOST_CHECK(vBlocksMain[i].pprev == NULL || vBlocksMain[i].nHeight == vBlocksMain[i].pprev->nHeight + 1);
     }
 
@@ -62,12 +62,12 @@ BOOST_AUTO_TEST_CASE(getlocator_test)
     std::vector<uint256> vHashSide(50000);
     std::vector<CBlockIndex> vBlocksSide(50000);
     for (unsigned int i=0; i<vBlocksSide.size(); i++) {
-        vHashSide[i] = i + 50000 + (uint256(1) << 128); // Add 1<<128 to the hashes, so GetLow64() still returns the height.
+        vHashSide[i] = ArithToUint256(i + 50000 + (arith_uint256(1) << 128)); // Add 1<<128 to the hashes, so GetLow64() still returns the height.
         vBlocksSide[i].nHeight = i + 50000;
         vBlocksSide[i].pprev = i ? &vBlocksSide[i - 1] : &vBlocksMain[49999];
         vBlocksSide[i].phashBlock = &vHashSide[i];
         vBlocksSide[i].BuildSkip();
-        BOOST_CHECK_EQUAL((int)vBlocksSide[i].GetBlockHash().GetLow64(), vBlocksSide[i].nHeight);
+        BOOST_CHECK_EQUAL((int)UintToArith256(vBlocksSide[i].GetBlockHash()).GetLow64(), vBlocksSide[i].nHeight);
         BOOST_CHECK(vBlocksSide[i].pprev == NULL || vBlocksSide[i].nHeight == vBlocksSide[i].pprev->nHeight + 1);
     }
 
@@ -87,13 +87,13 @@ BOOST_AUTO_TEST_CASE(getlocator_test)
 
         // Entries 1 through 11 (inclusive) go back one step each.
         for (unsigned int i = 1; i < 12 && i < locator.vHave.size() - 1; i++) {
-            BOOST_CHECK_EQUAL(locator.vHave[i].GetLow64(), tip->nHeight - i);
+            BOOST_CHECK_EQUAL(UintToArith256(locator.vHave[i]).GetLow64(), tip->nHeight - i);
         }
 
         // The further ones (excluding the last one) go back with exponential steps.
         unsigned int dist = 2;
         for (unsigned int i = 12; i < locator.vHave.size() - 1; i++) {
-            BOOST_CHECK_EQUAL(locator.vHave[i - 1].GetLow64() - locator.vHave[i].GetLow64(), dist);
+            BOOST_CHECK_EQUAL(UintToArith256(locator.vHave[i - 1]).GetLow64() - UintToArith256(locator.vHave[i]).GetLow64(), dist);
             dist *= 2;
         }
     }
diff --git a/src/test/test_bitcoin.cpp b/src/test/test_bitcoin.cpp
index e50218d8ef..f2dae99d69 100644
--- a/src/test/test_bitcoin.cpp
+++ b/src/test/test_bitcoin.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #define BOOST_TEST_MODULE Bitcoin Test Suite
diff --git a/src/test/timedata_tests.cpp b/src/test/timedata_tests.cpp
index aa4fa0d500..58ed963274 100644
--- a/src/test/timedata_tests.cpp
+++ b/src/test/timedata_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 //
 #include "timedata.h"
diff --git a/src/test/transaction_tests.cpp b/src/test/transaction_tests.cpp
index e939e89972..52adfea992 100644
--- a/src/test/transaction_tests.cpp
+++ b/src/test/transaction_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "data/tx_invalid.json.h"
@@ -24,7 +24,6 @@
 
 using namespace std;
 using namespace json_spirit;
-using namespace boost::algorithm;
 
 // In script_tests.cpp
 extern Array read_json(const std::string& jsondata);
@@ -38,7 +37,8 @@ static std::map<string, unsigned int> mapFlagNames = boost::assign::map_list_of
     (string("SIGPUSHONLY"), (unsigned int)SCRIPT_VERIFY_SIGPUSHONLY)
     (string("MINIMALDATA"), (unsigned int)SCRIPT_VERIFY_MINIMALDATA)
     (string("NULLDUMMY"), (unsigned int)SCRIPT_VERIFY_NULLDUMMY)
-    (string("DISCOURAGE_UPGRADABLE_NOPS"), (unsigned int)SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS);
+    (string("DISCOURAGE_UPGRADABLE_NOPS"), (unsigned int)SCRIPT_VERIFY_DISCOURAGE_UPGRADABLE_NOPS)
+    (string("CLEANSTACK"), (unsigned int)SCRIPT_VERIFY_CLEANSTACK);
 
 unsigned int ParseScriptFlags(string strFlags)
 {
@@ -47,7 +47,7 @@ unsigned int ParseScriptFlags(string strFlags)
     }
     unsigned int flags = 0;
     vector<string> words;
-    split(words, strFlags, is_any_of(","));
+    boost::algorithm::split(words, strFlags, boost::algorithm::is_any_of(","));
 
     BOOST_FOREACH(string word, words)
     {
@@ -118,7 +118,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
                     break;
                 }
 
-                mapprevOutScriptPubKeys[COutPoint(uint256(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
+                mapprevOutScriptPubKeys[COutPoint(uint256S(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
             }
             if (!fValid)
             {
@@ -145,7 +145,7 @@ BOOST_AUTO_TEST_CASE(tx_valid)
 
                 unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
                 BOOST_CHECK_MESSAGE(VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
-                                                 verify_flags, SignatureChecker(tx, i), &err),
+                                                 verify_flags, TransactionSignatureChecker(&tx, i), &err),
                                     strTest);
                 BOOST_CHECK_MESSAGE(err == SCRIPT_ERR_OK, ScriptErrorString(err));
             }
@@ -194,7 +194,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
                     break;
                 }
 
-                mapprevOutScriptPubKeys[COutPoint(uint256(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
+                mapprevOutScriptPubKeys[COutPoint(uint256S(vinput[0].get_str()), vinput[1].get_int())] = ParseScript(vinput[2].get_str());
             }
             if (!fValid)
             {
@@ -220,7 +220,7 @@ BOOST_AUTO_TEST_CASE(tx_invalid)
 
                 unsigned int verify_flags = ParseScriptFlags(test[2].get_str());
                 fValid = VerifyScript(tx.vin[i].scriptSig, mapprevOutScriptPubKeys[tx.vin[i].prevout],
-                                      verify_flags, SignatureChecker(tx, i), &err);
+                                      verify_flags, TransactionSignatureChecker(&tx, i), &err);
             }
             BOOST_CHECK_MESSAGE(!fValid, strTest);
             BOOST_CHECK_MESSAGE(err != SCRIPT_ERR_OK, ScriptErrorString(err));
@@ -347,12 +347,12 @@ BOOST_AUTO_TEST_CASE(test_IsStandard)
     t.vout[0].scriptPubKey = CScript() << OP_1;
     BOOST_CHECK(!IsStandardTx(t, reason));
 
-    // 40-byte TX_NULL_DATA (standard)
-    t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38");
+    // 80-byte TX_NULL_DATA (standard)
+    t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3804678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38");
     BOOST_CHECK(IsStandardTx(t, reason));
 
-    // 41-byte TX_NULL_DATA (non-standard)
-    t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3800");
+    // 81-byte TX_NULL_DATA (non-standard)
+    t.vout[0].scriptPubKey = CScript() << OP_RETURN << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3804678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef3800");
     BOOST_CHECK(!IsStandardTx(t, reason));
 
     // TX_NULL_DATA w/o PUSHDATA
diff --git a/src/test/uint256_tests.cpp b/src/test/uint256_tests.cpp
index 4b1a2ae58f..5b33846ba9 100644
--- a/src/test/uint256_tests.cpp
+++ b/src/test/uint256_tests.cpp
@@ -1,6 +1,9 @@
 // Copyright (c) 2011-2013 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#include "arith_uint256.h"
+#include "uint256.h"
+#include "version.h"
 
 #include <boost/test/unit_test.hpp>
 #include <stdint.h>
@@ -8,61 +11,66 @@
 #include <iomanip>
 #include <limits>
 #include <cmath>
-#include "uint256.h"
 #include <string>
-#include "version.h"
+#include <stdio.h>
 
 BOOST_AUTO_TEST_SUITE(uint256_tests)
- 
-const unsigned char R1Array[] = 
+
+const unsigned char R1Array[] =
     "\x9c\x52\x4a\xdb\xcf\x56\x11\x12\x2b\x29\x12\x5e\x5d\x35\xd2\xd2"
     "\x22\x81\xaa\xb5\x33\xf0\x08\x32\xd5\x56\xb1\xf9\xea\xe5\x1d\x7d";
 const char R1ArrayHex[] = "7D1DE5EAF9B156D53208F033B5AA8122D2d2355d5e12292b121156cfdb4a529c";
-const double R1Ldouble = 0.4887374590559308955; // R1L equals roughly R1Ldouble * 2^256
-const double R1Sdouble = 0.7096329412477836074; 
 const uint256 R1L = uint256(std::vector<unsigned char>(R1Array,R1Array+32));
 const uint160 R1S = uint160(std::vector<unsigned char>(R1Array,R1Array+20));
-const uint64_t R1LLow64 = 0x121156cfdb4a529cULL;
 
-const unsigned char R2Array[] = 
+const unsigned char R2Array[] =
     "\x70\x32\x1d\x7c\x47\xa5\x6b\x40\x26\x7e\x0a\xc3\xa6\x9c\xb6\xbf"
     "\x13\x30\x47\xa3\x19\x2d\xda\x71\x49\x13\x72\xf0\xb4\xca\x81\xd7";
 const uint256 R2L = uint256(std::vector<unsigned char>(R2Array,R2Array+32));
 const uint160 R2S = uint160(std::vector<unsigned char>(R2Array,R2Array+20));
 
-const char R1LplusR2L[] = "549FB09FEA236A1EA3E31D4D58F1B1369288D204211CA751527CFC175767850C";
-
-const unsigned char ZeroArray[] = 
+const unsigned char ZeroArray[] =
     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
 const uint256 ZeroL = uint256(std::vector<unsigned char>(ZeroArray,ZeroArray+32));
 const uint160 ZeroS = uint160(std::vector<unsigned char>(ZeroArray,ZeroArray+20));
-                             
-const unsigned char OneArray[] = 
+
+const unsigned char OneArray[] =
     "\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
     "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00";
 const uint256 OneL = uint256(std::vector<unsigned char>(OneArray,OneArray+32));
 const uint160 OneS = uint160(std::vector<unsigned char>(OneArray,OneArray+20));
 
-const unsigned char MaxArray[] = 
+const unsigned char MaxArray[] =
     "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff"
     "\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff";
 const uint256 MaxL = uint256(std::vector<unsigned char>(MaxArray,MaxArray+32));
 const uint160 MaxS = uint160(std::vector<unsigned char>(MaxArray,MaxArray+20));
 
-const uint256 HalfL = (OneL << 255);
-const uint160 HalfS = (OneS << 159);
 std::string ArrayToString(const unsigned char A[], unsigned int width)
 {
     std::stringstream Stream;
     Stream << std::hex;
-    for (unsigned int i = 0; i < width; ++i) 
+    for (unsigned int i = 0; i < width; ++i)
     {
         Stream<<std::setw(2)<<std::setfill('0')<<(unsigned int)A[width-i-1];
-    }       
+    }
     return Stream.str();
 }
 
+inline uint160 uint160S(const char *str)
+{
+    uint160 rv;
+    rv.SetHex(str);
+    return rv;
+}
+inline uint160 uint160S(const std::string& str)
+{
+    uint160 rv;
+    rv.SetHex(str);
+    return rv;
+}
+
 BOOST_AUTO_TEST_CASE( basics ) // constructors, equality, inequality
 {
     BOOST_CHECK(1 == 0+1);
@@ -85,477 +93,66 @@ BOOST_AUTO_TEST_CASE( basics ) // constructors, equality, inequality
     BOOST_CHECK(ZeroL != OneL && ZeroS != OneS);
     BOOST_CHECK(OneL != ZeroL && OneS != ZeroS);
     BOOST_CHECK(MaxL != ZeroL && MaxS != ZeroS);
-    BOOST_CHECK(~MaxL == ZeroL && ~MaxS == ZeroS);
-    BOOST_CHECK( ((R1L ^ R2L) ^ R1L) == R2L);
-    BOOST_CHECK( ((R1S ^ R2S) ^ R1S) == R2S);
-    
-    uint64_t Tmp64 = 0xc4dab720d9c7acaaULL;
-    for (unsigned int i = 0; i < 256; ++i) 
-    {
-        BOOST_CHECK(ZeroL != (OneL << i)); 
-        BOOST_CHECK((OneL << i) != ZeroL); 
-        BOOST_CHECK(R1L != (R1L ^ (OneL << i)));
-        BOOST_CHECK(((uint256(Tmp64) ^ (OneL << i) ) != Tmp64 ));
-    }
-    BOOST_CHECK(ZeroL == (OneL << 256)); 
-
-    for (unsigned int i = 0; i < 160; ++i) 
-    {
-        BOOST_CHECK(ZeroS != (OneS << i)); 
-        BOOST_CHECK((OneS << i) != ZeroS); 
-        BOOST_CHECK(R1S != (R1S ^ (OneS << i)));
-        BOOST_CHECK(((uint160(Tmp64) ^ (OneS << i) ) != Tmp64 ));
-    }
-    BOOST_CHECK(ZeroS == (OneS << 256)); 
 
     // String Constructor and Copy Constructor
-    BOOST_CHECK(uint256("0x"+R1L.ToString()) == R1L);
-    BOOST_CHECK(uint256("0x"+R2L.ToString()) == R2L);
-    BOOST_CHECK(uint256("0x"+ZeroL.ToString()) == ZeroL);
-    BOOST_CHECK(uint256("0x"+OneL.ToString()) == OneL);
-    BOOST_CHECK(uint256("0x"+MaxL.ToString()) == MaxL);
-    BOOST_CHECK(uint256(R1L.ToString()) == R1L);
-    BOOST_CHECK(uint256("   0x"+R1L.ToString()+"   ") == R1L);
-    BOOST_CHECK(uint256("") == ZeroL);
-    BOOST_CHECK(R1L == uint256(R1ArrayHex));
+    BOOST_CHECK(uint256S("0x"+R1L.ToString()) == R1L);
+    BOOST_CHECK(uint256S("0x"+R2L.ToString()) == R2L);
+    BOOST_CHECK(uint256S("0x"+ZeroL.ToString()) == ZeroL);
+    BOOST_CHECK(uint256S("0x"+OneL.ToString()) == OneL);
+    BOOST_CHECK(uint256S("0x"+MaxL.ToString()) == MaxL);
+    BOOST_CHECK(uint256S(R1L.ToString()) == R1L);
+    BOOST_CHECK(uint256S("   0x"+R1L.ToString()+"   ") == R1L);
+    BOOST_CHECK(uint256S("") == ZeroL);
+    BOOST_CHECK(R1L == uint256S(R1ArrayHex));
     BOOST_CHECK(uint256(R1L) == R1L);
-    BOOST_CHECK((uint256(R1L^R2L)^R2L) == R1L);
     BOOST_CHECK(uint256(ZeroL) == ZeroL);
     BOOST_CHECK(uint256(OneL) == OneL);
 
-    BOOST_CHECK(uint160("0x"+R1S.ToString()) == R1S);
-    BOOST_CHECK(uint160("0x"+R2S.ToString()) == R2S);
-    BOOST_CHECK(uint160("0x"+ZeroS.ToString()) == ZeroS);
-    BOOST_CHECK(uint160("0x"+OneS.ToString()) == OneS);
-    BOOST_CHECK(uint160("0x"+MaxS.ToString()) == MaxS);
-    BOOST_CHECK(uint160(R1S.ToString()) == R1S);
-    BOOST_CHECK(uint160("   0x"+R1S.ToString()+"   ") == R1S); 
-    BOOST_CHECK(uint160("") == ZeroS);
-    BOOST_CHECK(R1S == uint160(R1ArrayHex));
+    BOOST_CHECK(uint160S("0x"+R1S.ToString()) == R1S);
+    BOOST_CHECK(uint160S("0x"+R2S.ToString()) == R2S);
+    BOOST_CHECK(uint160S("0x"+ZeroS.ToString()) == ZeroS);
+    BOOST_CHECK(uint160S("0x"+OneS.ToString()) == OneS);
+    BOOST_CHECK(uint160S("0x"+MaxS.ToString()) == MaxS);
+    BOOST_CHECK(uint160S(R1S.ToString()) == R1S);
+    BOOST_CHECK(uint160S("   0x"+R1S.ToString()+"   ") == R1S);
+    BOOST_CHECK(uint160S("") == ZeroS);
+    BOOST_CHECK(R1S == uint160S(R1ArrayHex));
 
     BOOST_CHECK(uint160(R1S) == R1S);
-    BOOST_CHECK((uint160(R1S^R2S)^R2S) == R1S);
     BOOST_CHECK(uint160(ZeroS) == ZeroS);
     BOOST_CHECK(uint160(OneS) == OneS);
-
-    // uint64_t constructor
-    BOOST_CHECK( (R1L & uint256("0xffffffffffffffff")) == uint256(R1LLow64));
-    BOOST_CHECK(ZeroL == uint256(0));
-    BOOST_CHECK(OneL == uint256(1));
-    BOOST_CHECK(uint256("0xffffffffffffffff") = uint256(0xffffffffffffffffULL));
-    BOOST_CHECK( (R1S & uint160("0xffffffffffffffff")) == uint160(R1LLow64));
-    BOOST_CHECK(ZeroS == uint160(0));
-    BOOST_CHECK(OneS == uint160(1));
-    BOOST_CHECK(uint160("0xffffffffffffffff") = uint160(0xffffffffffffffffULL));
-
-    // Assignment (from base_uint)
-    uint256 tmpL = ~ZeroL; BOOST_CHECK(tmpL == ~ZeroL);
-    tmpL = ~OneL; BOOST_CHECK(tmpL == ~OneL);
-    tmpL = ~R1L; BOOST_CHECK(tmpL == ~R1L);
-    tmpL = ~R2L; BOOST_CHECK(tmpL == ~R2L);
-    tmpL = ~MaxL; BOOST_CHECK(tmpL == ~MaxL);
-    uint160 tmpS = ~ZeroS; BOOST_CHECK(tmpS == ~ZeroS);
-    tmpS = ~OneS; BOOST_CHECK(tmpS == ~OneS);
-    tmpS = ~R1S; BOOST_CHECK(tmpS == ~R1S);
-    tmpS = ~R2S; BOOST_CHECK(tmpS == ~R2S);
-    tmpS = ~MaxS; BOOST_CHECK(tmpS == ~MaxS);
-
-    // Wrong length must throw exception.
-    BOOST_CHECK_THROW(uint256(std::vector<unsigned char>(OneArray,OneArray+31)), uint_error);
-    BOOST_CHECK_THROW(uint256(std::vector<unsigned char>(OneArray,OneArray+20)), uint_error);
-    BOOST_CHECK_THROW(uint160(std::vector<unsigned char>(OneArray,OneArray+32)), uint_error);
-    BOOST_CHECK_THROW(uint160(std::vector<unsigned char>(OneArray,OneArray+19)), uint_error);
-}
-
-void shiftArrayRight(unsigned char* to, const unsigned char* from, unsigned int arrayLength, unsigned int bitsToShift) 
-{
-    for (unsigned int T=0; T < arrayLength; ++T) 
-    {
-        unsigned int F = (T+bitsToShift/8);
-        if (F < arrayLength) 
-            to[T]  = from[F] >> (bitsToShift%8);
-        else
-            to[T] = 0;
-        if (F + 1 < arrayLength) 
-            to[T] |= from[(F+1)] << (8-bitsToShift%8);
-    }
-}
-
-void shiftArrayLeft(unsigned char* to, const unsigned char* from, unsigned int arrayLength, unsigned int bitsToShift) 
-{
-    for (unsigned int T=0; T < arrayLength; ++T) 
-    {
-        if (T >= bitsToShift/8) 
-        {
-            unsigned int F = T-bitsToShift/8;
-            to[T]  = from[F] << (bitsToShift%8);
-            if (T >= bitsToShift/8+1)
-                to[T] |= from[F-1] >> (8-bitsToShift%8);
-        }
-        else {
-            to[T] = 0;
-        }
-    }
-}
-
-BOOST_AUTO_TEST_CASE( shifts ) { // "<<"  ">>"  "<<="  ">>="
-    unsigned char TmpArray[32];
-    uint256 TmpL;
-    for (unsigned int i = 0; i < 256; ++i)
-    {
-        shiftArrayLeft(TmpArray, OneArray, 32, i);
-        BOOST_CHECK(uint256(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (OneL << i));
-        TmpL = OneL; TmpL <<= i;
-        BOOST_CHECK(TmpL == (OneL << i));
-        BOOST_CHECK((HalfL >> (255-i)) == (OneL << i));
-        TmpL = HalfL; TmpL >>= (255-i);
-        BOOST_CHECK(TmpL == (OneL << i));
-                    
-        shiftArrayLeft(TmpArray, R1Array, 32, i);
-        BOOST_CHECK(uint256(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (R1L << i));
-        TmpL = R1L; TmpL <<= i;
-        BOOST_CHECK(TmpL == (R1L << i));
-
-        shiftArrayRight(TmpArray, R1Array, 32, i);
-        BOOST_CHECK(uint256(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (R1L >> i)); 
-        TmpL = R1L; TmpL >>= i;
-        BOOST_CHECK(TmpL == (R1L >> i));
-
-        shiftArrayLeft(TmpArray, MaxArray, 32, i);
-        BOOST_CHECK(uint256(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (MaxL << i));
-        TmpL = MaxL; TmpL <<= i;
-        BOOST_CHECK(TmpL == (MaxL << i));
-
-        shiftArrayRight(TmpArray, MaxArray, 32, i);
-        BOOST_CHECK(uint256(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (MaxL >> i));
-        TmpL = MaxL; TmpL >>= i;
-        BOOST_CHECK(TmpL == (MaxL >> i));
-    }
-    uint256 c1L = uint256(0x0123456789abcdefULL);
-    uint256 c2L = c1L << 128;
-    for (unsigned int i = 0; i < 128; ++i) {
-        BOOST_CHECK((c1L << i) == (c2L >> (128-i)));
-    }
-    for (unsigned int i = 128; i < 256; ++i) {
-        BOOST_CHECK((c1L << i) == (c2L << (i-128)));
-    }
-
-    uint160 TmpS;
-    for (unsigned int i = 0; i < 160; ++i)
-    {
-        shiftArrayLeft(TmpArray, OneArray, 20, i);
-        BOOST_CHECK(uint160(std::vector<unsigned char>(TmpArray,TmpArray+20)) == (OneS << i));
-        TmpS = OneS; TmpS <<= i;
-        BOOST_CHECK(TmpS == (OneS << i));
-        BOOST_CHECK((HalfS >> (159-i)) == (OneS << i));
-        TmpS = HalfS; TmpS >>= (159-i);
-        BOOST_CHECK(TmpS == (OneS << i));
-                    
-        shiftArrayLeft(TmpArray, R1Array, 20, i);
-        BOOST_CHECK(uint160(std::vector<unsigned char>(TmpArray,TmpArray+20)) == (R1S << i));
-        TmpS = R1S; TmpS <<= i;
-        BOOST_CHECK(TmpS == (R1S << i));
-
-        shiftArrayRight(TmpArray, R1Array, 20, i);
-        BOOST_CHECK(uint160(std::vector<unsigned char>(TmpArray,TmpArray+20)) == (R1S >> i)); 
-        TmpS = R1S; TmpS >>= i;
-        BOOST_CHECK(TmpS == (R1S >> i));
-
-        shiftArrayLeft(TmpArray, MaxArray, 20, i);
-        BOOST_CHECK(uint160(std::vector<unsigned char>(TmpArray,TmpArray+20)) == (MaxS << i));
-        TmpS = MaxS; TmpS <<= i;
-        BOOST_CHECK(TmpS == (MaxS << i));
-
-        shiftArrayRight(TmpArray, MaxArray, 20, i);
-        BOOST_CHECK(uint160(std::vector<unsigned char>(TmpArray,TmpArray+20)) == (MaxS >> i));
-        TmpS = MaxS; TmpS >>= i;
-        BOOST_CHECK(TmpS == (MaxS >> i));
-    }
-    uint160 c1S = uint160(0x0123456789abcdefULL);
-    uint160 c2S = c1S << 80;
-    for (unsigned int i = 0; i < 80; ++i) {
-        BOOST_CHECK((c1S << i) == (c2S >> (80-i)));
-    }
-    for (unsigned int i = 80; i < 160; ++i) {
-        BOOST_CHECK((c1S << i) == (c2S << (i-80)));
-    }
-}
-
-BOOST_AUTO_TEST_CASE( unaryOperators ) // !    ~    -
-{
-    BOOST_CHECK(!ZeroL);  BOOST_CHECK(!ZeroS);
-    BOOST_CHECK(!(!OneL));BOOST_CHECK(!(!OneS));
-    for (unsigned int i = 0; i < 256; ++i) 
-        BOOST_CHECK(!(!(OneL<<i)));
-    for (unsigned int i = 0; i < 160; ++i) 
-        BOOST_CHECK(!(!(OneS<<i)));
-    BOOST_CHECK(!(!R1L));BOOST_CHECK(!(!R1S));
-    BOOST_CHECK(!(!R2S));BOOST_CHECK(!(!R2S)); 
-    BOOST_CHECK(!(!MaxL));BOOST_CHECK(!(!MaxS));
-
-    BOOST_CHECK(~ZeroL == MaxL); BOOST_CHECK(~ZeroS == MaxS);
-
-    unsigned char TmpArray[32];
-    for (unsigned int i = 0; i < 32; ++i) { TmpArray[i] = ~R1Array[i]; } 
-    BOOST_CHECK(uint256(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (~R1L));
-    BOOST_CHECK(uint160(std::vector<unsigned char>(TmpArray,TmpArray+20)) == (~R1S));
-
-    BOOST_CHECK(-ZeroL == ZeroL); BOOST_CHECK(-ZeroS == ZeroS);
-    BOOST_CHECK(-R1L == (~R1L)+1);
-    BOOST_CHECK(-R1S == (~R1S)+1);
-    for (unsigned int i = 0; i < 256; ++i) 
-        BOOST_CHECK(-(OneL<<i) == (MaxL << i));
-    for (unsigned int i = 0; i < 160; ++i) 
-        BOOST_CHECK(-(OneS<<i) == (MaxS << i));
-}
-
-
-// Check if doing _A_ _OP_ _B_ results in the same as applying _OP_ onto each
-// element of Aarray and Barray, and then converting the result into a uint256.
-#define CHECKBITWISEOPERATOR(_A_,_B_,_OP_)                              \
-    for (unsigned int i = 0; i < 32; ++i) { TmpArray[i] = _A_##Array[i] _OP_ _B_##Array[i]; } \
-    BOOST_CHECK(uint256(std::vector<unsigned char>(TmpArray,TmpArray+32)) == (_A_##L _OP_ _B_##L)); \
-    for (unsigned int i = 0; i < 20; ++i) { TmpArray[i] = _A_##Array[i] _OP_ _B_##Array[i]; } \
-    BOOST_CHECK(uint160(std::vector<unsigned char>(TmpArray,TmpArray+20)) == (_A_##S _OP_ _B_##S));
-
-#define CHECKASSIGNMENTOPERATOR(_A_,_B_,_OP_)                           \
-    TmpL = _A_##L; TmpL _OP_##= _B_##L; BOOST_CHECK(TmpL == (_A_##L _OP_ _B_##L)); \
-    TmpS = _A_##S; TmpS _OP_##= _B_##S; BOOST_CHECK(TmpS == (_A_##S _OP_ _B_##S));
-
-BOOST_AUTO_TEST_CASE( bitwiseOperators ) 
-{
-    unsigned char TmpArray[32];
-    
-    CHECKBITWISEOPERATOR(R1,R2,|)
-    CHECKBITWISEOPERATOR(R1,R2,^)
-    CHECKBITWISEOPERATOR(R1,R2,&)
-    CHECKBITWISEOPERATOR(R1,Zero,|)
-    CHECKBITWISEOPERATOR(R1,Zero,^)
-    CHECKBITWISEOPERATOR(R1,Zero,&)
-    CHECKBITWISEOPERATOR(R1,Max,|)
-    CHECKBITWISEOPERATOR(R1,Max,^)
-    CHECKBITWISEOPERATOR(R1,Max,&)
-    CHECKBITWISEOPERATOR(Zero,R1,|)
-    CHECKBITWISEOPERATOR(Zero,R1,^)
-    CHECKBITWISEOPERATOR(Zero,R1,&)
-    CHECKBITWISEOPERATOR(Max,R1,|)
-    CHECKBITWISEOPERATOR(Max,R1,^)
-    CHECKBITWISEOPERATOR(Max,R1,&)
-
-    uint256 TmpL;
-    uint160 TmpS;
-    CHECKASSIGNMENTOPERATOR(R1,R2,|)
-    CHECKASSIGNMENTOPERATOR(R1,R2,^)
-    CHECKASSIGNMENTOPERATOR(R1,R2,&)
-    CHECKASSIGNMENTOPERATOR(R1,Zero,|)
-    CHECKASSIGNMENTOPERATOR(R1,Zero,^)
-    CHECKASSIGNMENTOPERATOR(R1,Zero,&)
-    CHECKASSIGNMENTOPERATOR(R1,Max,|)
-    CHECKASSIGNMENTOPERATOR(R1,Max,^)
-    CHECKASSIGNMENTOPERATOR(R1,Max,&)
-    CHECKASSIGNMENTOPERATOR(Zero,R1,|)
-    CHECKASSIGNMENTOPERATOR(Zero,R1,^)
-    CHECKASSIGNMENTOPERATOR(Zero,R1,&)
-    CHECKASSIGNMENTOPERATOR(Max,R1,|)
-    CHECKASSIGNMENTOPERATOR(Max,R1,^)
-    CHECKASSIGNMENTOPERATOR(Max,R1,&)
-
-    uint64_t Tmp64 = 0xe1db685c9a0b47a2ULL; 
-    TmpL = R1L; TmpL |= Tmp64;  BOOST_CHECK(TmpL == (R1L | uint256(Tmp64)));
-    TmpS = R1S; TmpS |= Tmp64;  BOOST_CHECK(TmpS == (R1S | uint160(Tmp64)));
-    TmpL = R1L; TmpL |= 0; BOOST_CHECK(TmpL == R1L);
-    TmpS = R1S; TmpS |= 0; BOOST_CHECK(TmpS == R1S);
-    TmpL ^= 0; BOOST_CHECK(TmpL == R1L);
-    TmpS ^= 0; BOOST_CHECK(TmpS == R1S);
-    TmpL ^= Tmp64;  BOOST_CHECK(TmpL == (R1L ^ uint256(Tmp64)));
-    TmpS ^= Tmp64;  BOOST_CHECK(TmpS == (R1S ^ uint160(Tmp64)));
 }
 
 BOOST_AUTO_TEST_CASE( comparison ) // <= >= < >
 {
-    uint256 TmpL;
-    for (unsigned int i = 0; i < 256; ++i) {
-        TmpL= OneL<< i;
-        BOOST_CHECK( TmpL >= ZeroL && TmpL > ZeroL && ZeroL < TmpL && ZeroL <= TmpL);
-        BOOST_CHECK( TmpL >= 0 && TmpL > 0 && 0 < TmpL && 0 <= TmpL);
-        TmpL |= R1L;
-        BOOST_CHECK( TmpL >= R1L ); BOOST_CHECK( (TmpL == R1L) != (TmpL > R1L)); BOOST_CHECK( (TmpL == R1L) || !( TmpL <= R1L));
-        BOOST_CHECK( R1L <= TmpL ); BOOST_CHECK( (R1L == TmpL) != (R1L < TmpL)); BOOST_CHECK( (TmpL == R1L) || !( R1L >= TmpL));
-        BOOST_CHECK(! (TmpL < R1L)); BOOST_CHECK(! (R1L > TmpL));
-    }
-    uint160 TmpS;
-    for (unsigned int i = 0; i < 160; ++i) {
-        TmpS= OneS<< i;
-        BOOST_CHECK( TmpS >= ZeroS && TmpS > ZeroS && ZeroS < TmpS && ZeroS <= TmpS);
-        BOOST_CHECK( TmpS >= 0 && TmpS > 0 && 0 < TmpS && 0 <= TmpS);
-        TmpS |= R1S;
-        BOOST_CHECK( TmpS >= R1S ); BOOST_CHECK( (TmpS == R1S) != (TmpS > R1S)); BOOST_CHECK( (TmpS == R1S) || !( TmpS <= R1S));
-        BOOST_CHECK( R1S <= TmpS ); BOOST_CHECK( (R1S == TmpS) != (R1S < TmpS)); BOOST_CHECK( (TmpS == R1S) || !( R1S >= TmpS));
-        BOOST_CHECK(! (TmpS < R1S)); BOOST_CHECK(! (R1S > TmpS));
+    uint256 LastL;
+    for (int i = 255; i >= 0; --i) {
+        uint256 TmpL;
+        *(TmpL.begin() + (i>>3)) |= 1<<(7-(i&7));
+        BOOST_CHECK( LastL < TmpL );
+        LastL = TmpL;
     }
-}
 
-BOOST_AUTO_TEST_CASE( plusMinus ) 
-{
-    uint256 TmpL = 0;
-    BOOST_CHECK(R1L+R2L == uint256(R1LplusR2L));
-    TmpL += R1L;
-    BOOST_CHECK(TmpL == R1L);
-    TmpL += R2L;
-    BOOST_CHECK(TmpL == R1L + R2L);
-    BOOST_CHECK(OneL+MaxL == ZeroL);
-    BOOST_CHECK(MaxL+OneL == ZeroL);
-    for (unsigned int i = 1; i < 256; ++i) {
-        BOOST_CHECK( (MaxL >> i) + OneL == (HalfL >> (i-1)) );
-        BOOST_CHECK( OneL + (MaxL >> i) == (HalfL >> (i-1)) );
-        TmpL = (MaxL>>i); TmpL += OneL;
-        BOOST_CHECK( TmpL == (HalfL >> (i-1)) );
-        TmpL = (MaxL>>i); TmpL += 1;
-        BOOST_CHECK( TmpL == (HalfL >> (i-1)) );
-        TmpL = (MaxL>>i); 
-        BOOST_CHECK( TmpL++ == (MaxL>>i) );
-        BOOST_CHECK( TmpL == (HalfL >> (i-1)));
+    BOOST_CHECK( ZeroL < R1L );
+    BOOST_CHECK( R2L < R1L );
+    BOOST_CHECK( ZeroL < OneL );
+    BOOST_CHECK( OneL < MaxL );
+    BOOST_CHECK( R1L < MaxL );
+    BOOST_CHECK( R2L < MaxL );
+
+    uint160 LastS;
+    for (int i = 159; i >= 0; --i) {
+        uint160 TmpS;
+        *(TmpS.begin() + (i>>3)) |= 1<<(7-(i&7));
+        BOOST_CHECK( LastS < TmpS );
+        LastS = TmpS;
     }
-    BOOST_CHECK(uint256(0xbedc77e27940a7ULL) + 0xee8d836fce66fbULL == uint256(0xbedc77e27940a7ULL + 0xee8d836fce66fbULL));
-    TmpL = uint256(0xbedc77e27940a7ULL); TmpL += 0xee8d836fce66fbULL;
-    BOOST_CHECK(TmpL == uint256(0xbedc77e27940a7ULL+0xee8d836fce66fbULL));
-    TmpL -= 0xee8d836fce66fbULL;  BOOST_CHECK(TmpL == 0xbedc77e27940a7ULL);
-    TmpL = R1L;
-    BOOST_CHECK(++TmpL == R1L+1);
-
-    BOOST_CHECK(R1L -(-R2L) == R1L+R2L);
-    BOOST_CHECK(R1L -(-OneL) == R1L+OneL);
-    BOOST_CHECK(R1L - OneL == R1L+(-OneL));
-    for (unsigned int i = 1; i < 256; ++i) {
-        BOOST_CHECK((MaxL>>i) - (-OneL)  == (HalfL >> (i-1)));
-        BOOST_CHECK((HalfL >> (i-1)) - OneL == (MaxL>>i));
-        TmpL = (HalfL >> (i-1));
-        BOOST_CHECK(TmpL-- == (HalfL >> (i-1)));
-        BOOST_CHECK(TmpL == (MaxL >> i));
-        TmpL = (HalfL >> (i-1));
-        BOOST_CHECK(--TmpL == (MaxL >> i));
-    }
-    TmpL = R1L;
-    BOOST_CHECK(--TmpL == R1L-1);
-
-    // 160-bit; copy-pasted
-    uint160 TmpS = 0;
-    BOOST_CHECK(R1S+R2S == uint160(R1LplusR2L));
-    TmpS += R1S;
-    BOOST_CHECK(TmpS == R1S);
-    TmpS += R2S;
-    BOOST_CHECK(TmpS == R1S + R2S);
-    BOOST_CHECK(OneS+MaxS == ZeroS);
-    BOOST_CHECK(MaxS+OneS == ZeroS);
-    for (unsigned int i = 1; i < 160; ++i) {
-        BOOST_CHECK( (MaxS >> i) + OneS == (HalfS >> (i-1)) );
-        BOOST_CHECK( OneS + (MaxS >> i) == (HalfS >> (i-1)) );
-        TmpS = (MaxS>>i); TmpS += OneS;
-        BOOST_CHECK( TmpS == (HalfS >> (i-1)) );
-        TmpS = (MaxS>>i); TmpS += 1;
-        BOOST_CHECK( TmpS == (HalfS >> (i-1)) );
-        TmpS = (MaxS>>i); 
-        BOOST_CHECK( TmpS++ == (MaxS>>i) );
-        BOOST_CHECK( TmpS == (HalfS >> (i-1)));
-    }
-    BOOST_CHECK(uint160(0xbedc77e27940a7ULL) + 0xee8d836fce66fbULL == uint160(0xbedc77e27940a7ULL + 0xee8d836fce66fbULL));
-    TmpS = uint160(0xbedc77e27940a7ULL); TmpS += 0xee8d836fce66fbULL;
-    BOOST_CHECK(TmpS == uint160(0xbedc77e27940a7ULL+0xee8d836fce66fbULL));
-    TmpS -= 0xee8d836fce66fbULL;  BOOST_CHECK(TmpS == 0xbedc77e27940a7ULL);
-    TmpS = R1S;
-    BOOST_CHECK(++TmpS == R1S+1);
-
-    BOOST_CHECK(R1S -(-R2S) == R1S+R2S);
-    BOOST_CHECK(R1S -(-OneS) == R1S+OneS);
-    BOOST_CHECK(R1S - OneS == R1S+(-OneS));
-    for (unsigned int i = 1; i < 160; ++i) {
-        BOOST_CHECK((MaxS>>i) - (-OneS)  == (HalfS >> (i-1)));
-        BOOST_CHECK((HalfS >> (i-1)) - OneS == (MaxS>>i));
-        TmpS = (HalfS >> (i-1));
-        BOOST_CHECK(TmpS-- == (HalfS >> (i-1)));
-        BOOST_CHECK(TmpS == (MaxS >> i));
-        TmpS = (HalfS >> (i-1));
-        BOOST_CHECK(--TmpS == (MaxS >> i));
-    }
-    TmpS = R1S;
-    BOOST_CHECK(--TmpS == R1S-1);
-
-}
-
-BOOST_AUTO_TEST_CASE( multiply )
-{
-    BOOST_CHECK((R1L * R1L).ToString() == "62a38c0486f01e45879d7910a7761bf30d5237e9873f9bff3642a732c4d84f10");
-    BOOST_CHECK((R1L * R2L).ToString() == "de37805e9986996cfba76ff6ba51c008df851987d9dd323f0e5de07760529c40");
-    BOOST_CHECK((R1L * ZeroL) == ZeroL);
-    BOOST_CHECK((R1L * OneL) == R1L);
-    BOOST_CHECK((R1L * MaxL) == -R1L);
-    BOOST_CHECK((R2L * R1L) == (R1L * R2L));
-    BOOST_CHECK((R2L * R2L).ToString() == "ac8c010096767d3cae5005dec28bb2b45a1d85ab7996ccd3e102a650f74ff100");
-    BOOST_CHECK((R2L * ZeroL) == ZeroL);
-    BOOST_CHECK((R2L * OneL) == R2L);
-    BOOST_CHECK((R2L * MaxL) == -R2L);
-
-    BOOST_CHECK((R1S * R1S).ToString() == "a7761bf30d5237e9873f9bff3642a732c4d84f10");
-    BOOST_CHECK((R1S * R2S).ToString() == "ba51c008df851987d9dd323f0e5de07760529c40");
-    BOOST_CHECK((R1S * ZeroS) == ZeroS);
-    BOOST_CHECK((R1S * OneS) == R1S);
-    BOOST_CHECK((R1S * MaxS) == -R1S);
-    BOOST_CHECK((R2S * R1S) == (R1S * R2S));
-    BOOST_CHECK((R2S * R2S).ToString() == "c28bb2b45a1d85ab7996ccd3e102a650f74ff100");
-    BOOST_CHECK((R2S * ZeroS) == ZeroS);
-    BOOST_CHECK((R2S * OneS) == R2S);
-    BOOST_CHECK((R2S * MaxS) == -R2S);
-
-    BOOST_CHECK(MaxL * MaxL == OneL);
-    BOOST_CHECK(MaxS * MaxS == OneS);
-
-    BOOST_CHECK((R1L * 0) == 0);
-    BOOST_CHECK((R1L * 1) == R1L);
-    BOOST_CHECK((R1L * 3).ToString() == "7759b1c0ed14047f961ad09b20ff83687876a0181a367b813634046f91def7d4");
-    BOOST_CHECK((R2L * 0x87654321UL).ToString() == "23f7816e30c4ae2017257b7a0fa64d60402f5234d46e746b61c960d09a26d070");
-    BOOST_CHECK((R1S * 0) == 0);
-    BOOST_CHECK((R1S * 1) == R1S);
-    BOOST_CHECK((R1S * 7).ToString() == "f7a987f3c3bf758d927f202d7e795faeff084244");
-    BOOST_CHECK((R2S * 0xFFFFFFFFUL).ToString() == "1c6f6c930353e17f7d6127213bb18d2883e2cd90");
-}
-
-BOOST_AUTO_TEST_CASE( divide )
-{
-    uint256 D1L("AD7133AC1977FA2B7");
-    uint256 D2L("ECD751716");
-    BOOST_CHECK((R1L / D1L).ToString() == "00000000000000000b8ac01106981635d9ed112290f8895545a7654dde28fb3a");
-    BOOST_CHECK((R1L / D2L).ToString() == "000000000873ce8efec5b67150bad3aa8c5fcb70e947586153bf2cec7c37c57a");
-    BOOST_CHECK(R1L / OneL == R1L);
-    BOOST_CHECK(R1L / MaxL == ZeroL);
-    BOOST_CHECK(MaxL / R1L == 2);
-    BOOST_CHECK_THROW(R1L / ZeroL, uint_error);
-    BOOST_CHECK((R2L / D1L).ToString() == "000000000000000013e1665895a1cc981de6d93670105a6b3ec3b73141b3a3c5");
-    BOOST_CHECK((R2L / D2L).ToString() == "000000000e8f0abe753bb0afe2e9437ee85d280be60882cf0bd1aaf7fa3cc2c4");
-    BOOST_CHECK(R2L / OneL == R2L);
-    BOOST_CHECK(R2L / MaxL == ZeroL);
-    BOOST_CHECK(MaxL / R2L == 1);
-    BOOST_CHECK_THROW(R2L / ZeroL, uint_error);
-
-    uint160 D1S("D3C5EDCDEA54EB92679F0A4B4");
-    uint160 D2S("13037");
-    BOOST_CHECK((R1S / D1S).ToString() == "0000000000000000000000000db9af3beade6c02");
-    BOOST_CHECK((R1S / D2S).ToString() == "000098dfb6cc40ca592bf74366794f298ada205c");
-    BOOST_CHECK(R1S / OneS == R1S);
-    BOOST_CHECK(R1S / MaxS == ZeroS);
-    BOOST_CHECK(MaxS / R1S == 1);
-    BOOST_CHECK_THROW(R1S / ZeroS, uint_error);
-    BOOST_CHECK((R2S / D1S).ToString() == "0000000000000000000000000c5608e781182047");
-    BOOST_CHECK((R2S / D2S).ToString() == "00008966751b7187c3c67c1fda5cea7db2c1c069");
-    BOOST_CHECK(R2S / OneS == R2S);
-    BOOST_CHECK(R2S / MaxS == ZeroS);
-    BOOST_CHECK(MaxS / R2S == 1);
-    BOOST_CHECK_THROW(R2S / ZeroS, uint_error);
-}
-
-
-bool almostEqual(double d1, double d2) 
-{
-    return fabs(d1-d2) <= 4*fabs(d1)*std::numeric_limits<double>::epsilon();
+    BOOST_CHECK( ZeroS < R1S );
+    BOOST_CHECK( R2S < R1S );
+    BOOST_CHECK( ZeroS < OneS );
+    BOOST_CHECK( OneS < MaxS );
+    BOOST_CHECK( R1S < MaxS );
+    BOOST_CHECK( R2S < MaxS );
 }
 
 BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 GetSerializeSize, Serialize, Unserialize
@@ -567,8 +164,7 @@ BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 G
     uint256 TmpL(R1L);
     BOOST_CHECK(TmpL == R1L);
     TmpL.SetHex(R2L.ToString());   BOOST_CHECK(TmpL == R2L);
-    TmpL.SetHex(ZeroL.ToString()); BOOST_CHECK(TmpL == 0);
-    TmpL.SetHex(HalfL.ToString()); BOOST_CHECK(TmpL == HalfL);
+    TmpL.SetHex(ZeroL.ToString()); BOOST_CHECK(TmpL == uint256());
 
     TmpL.SetHex(R1L.ToString());
     BOOST_CHECK(memcmp(R1L.begin(), R1Array, 32)==0);
@@ -576,6 +172,8 @@ BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 G
     BOOST_CHECK(memcmp(R2L.begin(), R2Array, 32)==0);
     BOOST_CHECK(memcmp(ZeroL.begin(), ZeroArray, 32)==0);
     BOOST_CHECK(memcmp(OneL.begin(), OneArray, 32)==0);
+    BOOST_CHECK(R1L.size() == sizeof(R1L));
+    BOOST_CHECK(sizeof(R1L) == 32);
     BOOST_CHECK(R1L.size() == 32);
     BOOST_CHECK(R2L.size() == 32);
     BOOST_CHECK(ZeroL.size() == 32);
@@ -585,9 +183,6 @@ BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 G
     BOOST_CHECK(OneL.begin() + 32 == OneL.end());
     BOOST_CHECK(MaxL.begin() + 32 == MaxL.end());
     BOOST_CHECK(TmpL.begin() + 32 == TmpL.end());
-    BOOST_CHECK(R1L.GetLow64()  == R1LLow64);
-    BOOST_CHECK(HalfL.GetLow64() ==0x0000000000000000ULL);
-    BOOST_CHECK(OneL.GetLow64() ==0x0000000000000001ULL);
     BOOST_CHECK(R1L.GetSerializeSize(0,PROTOCOL_VERSION) == 32);
     BOOST_CHECK(ZeroL.GetSerializeSize(0,PROTOCOL_VERSION) == 32);
 
@@ -615,8 +210,7 @@ BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 G
     uint160 TmpS(R1S);
     BOOST_CHECK(TmpS == R1S);
     TmpS.SetHex(R2S.ToString());   BOOST_CHECK(TmpS == R2S);
-    TmpS.SetHex(ZeroS.ToString()); BOOST_CHECK(TmpS == 0);
-    TmpS.SetHex(HalfS.ToString()); BOOST_CHECK(TmpS == HalfS);
+    TmpS.SetHex(ZeroS.ToString()); BOOST_CHECK(TmpS == uint160());
 
     TmpS.SetHex(R1S.ToString());
     BOOST_CHECK(memcmp(R1S.begin(), R1Array, 20)==0);
@@ -624,6 +218,8 @@ BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 G
     BOOST_CHECK(memcmp(R2S.begin(), R2Array, 20)==0);
     BOOST_CHECK(memcmp(ZeroS.begin(), ZeroArray, 20)==0);
     BOOST_CHECK(memcmp(OneS.begin(), OneArray, 20)==0);
+    BOOST_CHECK(R1S.size() == sizeof(R1S));
+    BOOST_CHECK(sizeof(R1S) == 20);
     BOOST_CHECK(R1S.size() == 20);
     BOOST_CHECK(R2S.size() == 20);
     BOOST_CHECK(ZeroS.size() == 20);
@@ -633,9 +229,6 @@ BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 G
     BOOST_CHECK(OneS.begin() + 20 == OneS.end());
     BOOST_CHECK(MaxS.begin() + 20 == MaxS.end());
     BOOST_CHECK(TmpS.begin() + 20 == TmpS.end());
-    BOOST_CHECK(R1S.GetLow64()  == R1LLow64);
-    BOOST_CHECK(HalfS.GetLow64() ==0x0000000000000000ULL); 
-    BOOST_CHECK(OneS.GetLow64() ==0x0000000000000001ULL);
     BOOST_CHECK(R1S.GetSerializeSize(0,PROTOCOL_VERSION) == 20);
     BOOST_CHECK(ZeroS.GetSerializeSize(0,PROTOCOL_VERSION) == 20);
 
@@ -654,184 +247,22 @@ BOOST_AUTO_TEST_CASE( methods ) // GetHex SetHex begin() end() size() GetLow64 G
     TmpS.Unserialize(ss,0,PROTOCOL_VERSION);
     BOOST_CHECK(MaxS == TmpS);
     ss.str("");
-    
-    for (unsigned int i = 0; i < 255; ++i) 
-    {
-        BOOST_CHECK((OneL << i).getdouble() == ldexp(1.0,i));
-        if (i < 160) BOOST_CHECK((OneS << i).getdouble() == ldexp(1.0,i));
-    }
-    BOOST_CHECK(ZeroL.getdouble() == 0.0);
-    BOOST_CHECK(ZeroS.getdouble() == 0.0);
-    for (int i = 256; i > 53; --i) 
-        BOOST_CHECK(almostEqual((R1L>>(256-i)).getdouble(), ldexp(R1Ldouble,i)));
-    for (int i = 160; i > 53; --i) 
-        BOOST_CHECK(almostEqual((R1S>>(160-i)).getdouble(), ldexp(R1Sdouble,i)));
-    uint64_t R1L64part = (R1L>>192).GetLow64();
-    uint64_t R1S64part = (R1S>>96).GetLow64();
-    for (int i = 53; i > 0; --i) // doubles can store all integers in {0,...,2^54-1} exactly
-    {
-        BOOST_CHECK((R1L>>(256-i)).getdouble() == (double)(R1L64part >> (64-i)));
-        BOOST_CHECK((R1S>>(160-i)).getdouble() == (double)(R1S64part >> (64-i)));
-    }
 }
 
-BOOST_AUTO_TEST_CASE(bignum_SetCompact)
+BOOST_AUTO_TEST_CASE( conversion )
 {
-    uint256 num;
-    bool fNegative;
-    bool fOverflow;
-    num.SetCompact(0, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x00123456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x01003456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x02000056, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x03000000, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x04000000, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x00923456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x01803456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x02800056, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x03800000, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x04800000, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x01123456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000000012");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0x01120000U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    // Make sure that we don't generate compacts with the 0x00800000 bit set
-    num = 0x80;
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0x02008000U);
-
-    num.SetCompact(0x01fedcba, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "000000000000000000000000000000000000000000000000000000000000007e");
-    BOOST_CHECK_EQUAL(num.GetCompact(true), 0x01fe0000U);
-    BOOST_CHECK_EQUAL(fNegative, true);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x02123456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000001234");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0x02123400U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x03123456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000000123456");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0x03123456U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x04123456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000012345600");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0x04123456U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x04923456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000012345600");
-    BOOST_CHECK_EQUAL(num.GetCompact(true), 0x04923456U);
-    BOOST_CHECK_EQUAL(fNegative, true);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x05009234, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "0000000000000000000000000000000000000000000000000000000092340000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0x05009234U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0x20123456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(num.GetHex(), "1234560000000000000000000000000000000000000000000000000000000000");
-    BOOST_CHECK_EQUAL(num.GetCompact(), 0x20123456U);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, false);
-
-    num.SetCompact(0xff123456, &fNegative, &fOverflow);
-    BOOST_CHECK_EQUAL(fNegative, false);
-    BOOST_CHECK_EQUAL(fOverflow, true);
-}
-
-
-BOOST_AUTO_TEST_CASE( getmaxcoverage ) // some more tests just to get 100% coverage
-{
-    // ~R1L give a base_uint<256>
-    BOOST_CHECK((~~R1L >> 10) == (R1L >> 10)); BOOST_CHECK((~~R1S >> 10) == (R1S >> 10));
-    BOOST_CHECK((~~R1L << 10) == (R1L << 10)); BOOST_CHECK((~~R1S << 10) == (R1S << 10));
-    BOOST_CHECK(!(~~R1L < R1L)); BOOST_CHECK(!(~~R1S < R1S)); 
-    BOOST_CHECK(~~R1L <= R1L); BOOST_CHECK(~~R1S <= R1S); 
-    BOOST_CHECK(!(~~R1L > R1L)); BOOST_CHECK(!(~~R1S > R1S)); 
-    BOOST_CHECK(~~R1L >= R1L); BOOST_CHECK(~~R1S >= R1S); 
-    BOOST_CHECK(!(R1L < ~~R1L)); BOOST_CHECK(!(R1S < ~~R1S)); 
-    BOOST_CHECK(R1L <= ~~R1L); BOOST_CHECK(R1S <= ~~R1S); 
-    BOOST_CHECK(!(R1L > ~~R1L)); BOOST_CHECK(!(R1S > ~~R1S)); 
-    BOOST_CHECK(R1L >= ~~R1L); BOOST_CHECK(R1S >= ~~R1S); 
-    
-    BOOST_CHECK(~~R1L + R2L == R1L + ~~R2L);
-    BOOST_CHECK(~~R1S + R2S == R1S + ~~R2S);
-    BOOST_CHECK(~~R1L - R2L == R1L - ~~R2L);
-    BOOST_CHECK(~~R1S - R2S == R1S - ~~R2S);
-    BOOST_CHECK(~R1L != R1L); BOOST_CHECK(R1L != ~R1L); 
-    BOOST_CHECK(~R1S != R1S); BOOST_CHECK(R1S != ~R1S); 
-    unsigned char TmpArray[32];
-    CHECKBITWISEOPERATOR(~R1,R2,|)
-    CHECKBITWISEOPERATOR(~R1,R2,^)
-    CHECKBITWISEOPERATOR(~R1,R2,&)
-    CHECKBITWISEOPERATOR(R1,~R2,|)
-    CHECKBITWISEOPERATOR(R1,~R2,^)
-    CHECKBITWISEOPERATOR(R1,~R2,&)
+    BOOST_CHECK(ArithToUint256(UintToArith256(ZeroL)) == ZeroL);
+    BOOST_CHECK(ArithToUint256(UintToArith256(OneL)) == OneL);
+    BOOST_CHECK(ArithToUint256(UintToArith256(R1L)) == R1L);
+    BOOST_CHECK(ArithToUint256(UintToArith256(R2L)) == R2L);
+    BOOST_CHECK(UintToArith256(ZeroL) == 0);
+    BOOST_CHECK(UintToArith256(OneL) == 1);
+    BOOST_CHECK(ArithToUint256(0) == ZeroL);
+    BOOST_CHECK(ArithToUint256(1) == OneL);
+    BOOST_CHECK(arith_uint256(R1L.GetHex()) == UintToArith256(R1L));
+    BOOST_CHECK(arith_uint256(R2L.GetHex()) == UintToArith256(R2L));
+    BOOST_CHECK(R1L.GetHex() == UintToArith256(R1L).GetHex());
+    BOOST_CHECK(R2L.GetHex() == UintToArith256(R2L).GetHex());
 }
 
 BOOST_AUTO_TEST_SUITE_END()
-
diff --git a/src/test/univalue_tests.cpp b/src/test/univalue_tests.cpp
index 23bc5f6b12..5f0c1deb8e 100644
--- a/src/test/univalue_tests.cpp
+++ b/src/test/univalue_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 BitPay, Inc.
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <stdint.h>
diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
index 10f77e3a5b..d829ec228d 100644
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2011-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "util.h"
@@ -282,21 +282,21 @@ BOOST_AUTO_TEST_CASE(strprintf_numbers)
 {
     int64_t s64t = -9223372036854775807LL; /* signed 64 bit test value */
     uint64_t u64t = 18446744073709551615ULL; /* unsigned 64 bit test value */
-    BOOST_CHECK(strprintf("%s %d %s", B, s64t, E) == B" -9223372036854775807 "E);
-    BOOST_CHECK(strprintf("%s %u %s", B, u64t, E) == B" 18446744073709551615 "E);
-    BOOST_CHECK(strprintf("%s %x %s", B, u64t, E) == B" ffffffffffffffff "E);
+    BOOST_CHECK(strprintf("%s %d %s", B, s64t, E) == B" -9223372036854775807 " E);
+    BOOST_CHECK(strprintf("%s %u %s", B, u64t, E) == B" 18446744073709551615 " E);
+    BOOST_CHECK(strprintf("%s %x %s", B, u64t, E) == B" ffffffffffffffff " E);
 
     size_t st = 12345678; /* unsigned size_t test value */
     ssize_t sst = -12345678; /* signed size_t test value */
-    BOOST_CHECK(strprintf("%s %d %s", B, sst, E) == B" -12345678 "E);
-    BOOST_CHECK(strprintf("%s %u %s", B, st, E) == B" 12345678 "E);
-    BOOST_CHECK(strprintf("%s %x %s", B, st, E) == B" bc614e "E);
+    BOOST_CHECK(strprintf("%s %d %s", B, sst, E) == B" -12345678 " E);
+    BOOST_CHECK(strprintf("%s %u %s", B, st, E) == B" 12345678 " E);
+    BOOST_CHECK(strprintf("%s %x %s", B, st, E) == B" bc614e " E);
 
     ptrdiff_t pt = 87654321; /* positive ptrdiff_t test value */
     ptrdiff_t spt = -87654321; /* negative ptrdiff_t test value */
-    BOOST_CHECK(strprintf("%s %d %s", B, spt, E) == B" -87654321 "E);
-    BOOST_CHECK(strprintf("%s %u %s", B, pt, E) == B" 87654321 "E);
-    BOOST_CHECK(strprintf("%s %x %s", B, pt, E) == B" 5397fb1 "E);
+    BOOST_CHECK(strprintf("%s %d %s", B, spt, E) == B" -87654321 " E);
+    BOOST_CHECK(strprintf("%s %u %s", B, pt, E) == B" 87654321 " E);
+    BOOST_CHECK(strprintf("%s %x %s", B, pt, E) == B" 5397fb1 " E);
 }
 #undef B
 #undef E
@@ -340,6 +340,7 @@ BOOST_AUTO_TEST_CASE(test_FormatParagraph)
     BOOST_CHECK_EQUAL(FormatParagraph("test test", 4, 0), "test\ntest");
     BOOST_CHECK_EQUAL(FormatParagraph("testerde test ", 4, 0), "testerde\ntest");
     BOOST_CHECK_EQUAL(FormatParagraph("test test", 4, 4), "test\n    test");
+    BOOST_CHECK_EQUAL(FormatParagraph("This is a very long test string. This is a second sentence in the very long test string."), "This is a very long test string. This is a second sentence in the very long\ntest string.");
 }
 
 BOOST_AUTO_TEST_CASE(test_FormatSubVersion)
diff --git a/src/test/wallet_tests.cpp b/src/test/wallet_tests.cpp
index 90fc470e06..289cc8c905 100644
--- a/src/test/wallet_tests.cpp
+++ b/src/test/wallet_tests.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2012-2014 The Bitcoin Core developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "wallet.h"
diff --git a/src/threadsafety.h b/src/threadsafety.h
index 7515d050e7..d01c50abb6 100644
--- a/src/threadsafety.h
+++ b/src/threadsafety.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2012 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2012 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_THREADSAFETY_H
diff --git a/src/timedata.cpp b/src/timedata.cpp
index 59f7778db1..c3e9c75f6e 100644
--- a/src/timedata.cpp
+++ b/src/timedata.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -40,10 +40,8 @@ static int64_t abs64(int64_t n)
     return (n >= 0 ? n : -n);
 }
 
-void AddTimeData(const CNetAddr& ip, int64_t nTime)
+void AddTimeData(const CNetAddr& ip, int64_t nOffsetSample)
 {
-    int64_t nOffsetSample = nTime - GetTime();
-
     LOCK(cs_nTimeOffset);
     // Ignore duplicates
     static set<CNetAddr> setKnown;
diff --git a/src/timedata.h b/src/timedata.h
index 64595ffc37..2296baf11b 100644
--- a/src/timedata.h
+++ b/src/timedata.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2014 The Bitcoin developers
+// Copyright (c) 2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/txdb.cpp b/src/txdb.cpp
index 0731d843f3..da271bd5d1 100644
--- a/src/txdb.cpp
+++ b/src/txdb.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "txdb.h"
@@ -14,32 +14,43 @@
 
 using namespace std;
 
+static const char DB_COINS = 'c';
+static const char DB_BLOCK_FILES = 'f';
+static const char DB_TXINDEX = 't';
+static const char DB_BLOCK_INDEX = 'b';
+
+static const char DB_BEST_BLOCK = 'B';
+static const char DB_FLAG = 'F';
+static const char DB_REINDEX_FLAG = 'R';
+static const char DB_LAST_BLOCK = 'l';
+
+
 void static BatchWriteCoins(CLevelDBBatch &batch, const uint256 &hash, const CCoins &coins) {
     if (coins.IsPruned())
-        batch.Erase(make_pair('c', hash));
+        batch.Erase(make_pair(DB_COINS, hash));
     else
-        batch.Write(make_pair('c', hash), coins);
+        batch.Write(make_pair(DB_COINS, hash), coins);
 }
 
 void static BatchWriteHashBestChain(CLevelDBBatch &batch, const uint256 &hash) {
-    batch.Write('B', hash);
+    batch.Write(DB_BEST_BLOCK, hash);
 }
 
 CCoinsViewDB::CCoinsViewDB(size_t nCacheSize, bool fMemory, bool fWipe) : db(GetDataDir() / "chainstate", nCacheSize, fMemory, fWipe) {
 }
 
 bool CCoinsViewDB::GetCoins(const uint256 &txid, CCoins &coins) const {
-    return db.Read(make_pair('c', txid), coins);
+    return db.Read(make_pair(DB_COINS, txid), coins);
 }
 
 bool CCoinsViewDB::HaveCoins(const uint256 &txid) const {
-    return db.Exists(make_pair('c', txid));
+    return db.Exists(make_pair(DB_COINS, txid));
 }
 
 uint256 CCoinsViewDB::GetBestBlock() const {
     uint256 hashBestChain;
-    if (!db.Read('B', hashBestChain))
-        return uint256(0);
+    if (!db.Read(DB_BEST_BLOCK, hashBestChain))
+        return uint256();
     return hashBestChain;
 }
 
@@ -56,7 +67,7 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) {
         CCoinsMap::iterator itOld = it++;
         mapCoins.erase(itOld);
     }
-    if (hashBlock != uint256(0))
+    if (!hashBlock.IsNull())
         BatchWriteHashBestChain(batch, hashBlock);
 
     LogPrint("coindb", "Committing %u changed transactions (out of %u) to coin database...\n", (unsigned int)changed, (unsigned int)count);
@@ -66,37 +77,24 @@ bool CCoinsViewDB::BatchWrite(CCoinsMap &mapCoins, const uint256 &hashBlock) {
 CBlockTreeDB::CBlockTreeDB(size_t nCacheSize, bool fMemory, bool fWipe) : CLevelDBWrapper(GetDataDir() / "blocks" / "index", nCacheSize, fMemory, fWipe) {
 }
 
-bool CBlockTreeDB::WriteBlockIndex(const CDiskBlockIndex& blockindex)
-{
-    return Write(make_pair('b', blockindex.GetBlockHash()), blockindex);
-}
-
-bool CBlockTreeDB::WriteBlockFileInfo(int nFile, const CBlockFileInfo &info) {
-    return Write(make_pair('f', nFile), info);
-}
-
 bool CBlockTreeDB::ReadBlockFileInfo(int nFile, CBlockFileInfo &info) {
-    return Read(make_pair('f', nFile), info);
-}
-
-bool CBlockTreeDB::WriteLastBlockFile(int nFile) {
-    return Write('l', nFile);
+    return Read(make_pair(DB_BLOCK_FILES, nFile), info);
 }
 
 bool CBlockTreeDB::WriteReindexing(bool fReindexing) {
     if (fReindexing)
-        return Write('R', '1');
+        return Write(DB_REINDEX_FLAG, '1');
     else
-        return Erase('R');
+        return Erase(DB_REINDEX_FLAG);
 }
 
 bool CBlockTreeDB::ReadReindexing(bool &fReindexing) {
-    fReindexing = Exists('R');
+    fReindexing = Exists(DB_REINDEX_FLAG);
     return true;
 }
 
 bool CBlockTreeDB::ReadLastBlockFile(int &nFile) {
-    return Read('l', nFile);
+    return Read(DB_LAST_BLOCK, nFile);
 }
 
 bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
@@ -117,7 +115,7 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
             CDataStream ssKey(slKey.data(), slKey.data()+slKey.size(), SER_DISK, CLIENT_VERSION);
             char chType;
             ssKey >> chType;
-            if (chType == 'c') {
+            if (chType == DB_COINS) {
                 leveldb::Slice slValue = pcursor->value();
                 CDataStream ssValue(slValue.data(), slValue.data()+slValue.size(), SER_DISK, CLIENT_VERSION);
                 CCoins coins;
@@ -142,8 +140,8 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
                 ss << VARINT(0);
             }
             pcursor->Next();
-        } catch (std::exception &e) {
-            return error("%s : Deserialize or I/O error - %s", __func__, e.what());
+        } catch (const std::exception& e) {
+            return error("%s: Deserialize or I/O error - %s", __func__, e.what());
         }
     }
     stats.nHeight = mapBlockIndex.find(GetBestBlock())->second->nHeight;
@@ -152,24 +150,36 @@ bool CCoinsViewDB::GetStats(CCoinsStats &stats) const {
     return true;
 }
 
+bool CBlockTreeDB::WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo) {
+    CLevelDBBatch batch;
+    for (std::vector<std::pair<int, const CBlockFileInfo*> >::const_iterator it=fileInfo.begin(); it != fileInfo.end(); it++) {
+        batch.Write(make_pair(DB_BLOCK_FILES, it->first), *it->second);
+    }
+    batch.Write(DB_LAST_BLOCK, nLastFile);
+    for (std::vector<const CBlockIndex*>::const_iterator it=blockinfo.begin(); it != blockinfo.end(); it++) {
+        batch.Write(make_pair(DB_BLOCK_INDEX, (*it)->GetBlockHash()), CDiskBlockIndex(*it));
+    }
+    return WriteBatch(batch, true);
+}
+
 bool CBlockTreeDB::ReadTxIndex(const uint256 &txid, CDiskTxPos &pos) {
-    return Read(make_pair('t', txid), pos);
+    return Read(make_pair(DB_TXINDEX, txid), pos);
 }
 
 bool CBlockTreeDB::WriteTxIndex(const std::vector<std::pair<uint256, CDiskTxPos> >&vect) {
     CLevelDBBatch batch;
     for (std::vector<std::pair<uint256,CDiskTxPos> >::const_iterator it=vect.begin(); it!=vect.end(); it++)
-        batch.Write(make_pair('t', it->first), it->second);
+        batch.Write(make_pair(DB_TXINDEX, it->first), it->second);
     return WriteBatch(batch);
 }
 
 bool CBlockTreeDB::WriteFlag(const std::string &name, bool fValue) {
-    return Write(std::make_pair('F', name), fValue ? '1' : '0');
+    return Write(std::make_pair(DB_FLAG, name), fValue ? '1' : '0');
 }
 
 bool CBlockTreeDB::ReadFlag(const std::string &name, bool &fValue) {
     char ch;
-    if (!Read(std::make_pair('F', name), ch))
+    if (!Read(std::make_pair(DB_FLAG, name), ch))
         return false;
     fValue = ch == '1';
     return true;
@@ -180,7 +190,7 @@ bool CBlockTreeDB::LoadBlockIndexGuts()
     boost::scoped_ptr<leveldb::Iterator> pcursor(NewIterator());
 
     CDataStream ssKeySet(SER_DISK, CLIENT_VERSION);
-    ssKeySet << make_pair('b', uint256(0));
+    ssKeySet << make_pair(DB_BLOCK_INDEX, uint256());
     pcursor->Seek(ssKeySet.str());
 
     // Load mapBlockIndex
@@ -191,7 +201,7 @@ bool CBlockTreeDB::LoadBlockIndexGuts()
             CDataStream ssKey(slKey.data(), slKey.data()+slKey.size(), SER_DISK, CLIENT_VERSION);
             char chType;
             ssKey >> chType;
-            if (chType == 'b') {
+            if (chType == DB_BLOCK_INDEX) {
                 leveldb::Slice slValue = pcursor->value();
                 CDataStream ssValue(slValue.data(), slValue.data()+slValue.size(), SER_DISK, CLIENT_VERSION);
                 CDiskBlockIndex diskindex;
@@ -213,14 +223,14 @@ bool CBlockTreeDB::LoadBlockIndexGuts()
                 pindexNew->nTx            = diskindex.nTx;
 
                 if (!CheckProofOfWork(pindexNew->GetBlockHash(), pindexNew->nBits))
-                    return error("LoadBlockIndex() : CheckProofOfWork failed: %s", pindexNew->ToString());
+                    return error("LoadBlockIndex(): CheckProofOfWork failed: %s", pindexNew->ToString());
 
                 pcursor->Next();
             } else {
                 break; // if shutdown requested or finished loading block index
             }
-        } catch (std::exception &e) {
-            return error("%s : Deserialize or I/O error - %s", __func__, e.what());
+        } catch (const std::exception& e) {
+            return error("%s: Deserialize or I/O error - %s", __func__, e.what());
         }
     }
 
diff --git a/src/txdb.h b/src/txdb.h
index 9a98fcc41b..f6b6b84fcf 100644
--- a/src/txdb.h
+++ b/src/txdb.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -48,11 +48,9 @@ private:
     CBlockTreeDB(const CBlockTreeDB&);
     void operator=(const CBlockTreeDB&);
 public:
-    bool WriteBlockIndex(const CDiskBlockIndex& blockindex);
+    bool WriteBatchSync(const std::vector<std::pair<int, const CBlockFileInfo*> >& fileInfo, int nLastFile, const std::vector<const CBlockIndex*>& blockinfo);
     bool ReadBlockFileInfo(int nFile, CBlockFileInfo &fileinfo);
-    bool WriteBlockFileInfo(int nFile, const CBlockFileInfo &fileinfo);
     bool ReadLastBlockFile(int &nFile);
-    bool WriteLastBlockFile(int nFile);
     bool WriteReindexing(bool fReindex);
     bool ReadReindexing(bool &fReindex);
     bool ReadTxIndex(const uint256 &txid, CDiskTxPos &pos);
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index e13f1cc350..6e0f7e9c5a 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -1,11 +1,12 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "txmempool.h"
 
 #include "clientversion.h"
+#include "main.h"
 #include "streams.h"
 #include "util.h"
 #include "utilmoneystr.h"
@@ -90,22 +91,32 @@ public:
      * Used as belt-and-suspenders check when reading to detect
      * file corruption
      */
-    bool AreSane(const std::vector<CFeeRate>& vecFee, const CFeeRate& minRelayFee)
+    static bool AreSane(const CFeeRate fee, const CFeeRate& minRelayFee)
+    {
+        if (fee < CFeeRate(0))
+            return false;
+        if (fee.GetFeePerK() > minRelayFee.GetFeePerK() * 10000)
+            return false;
+        return true;
+    }
+    static bool AreSane(const std::vector<CFeeRate>& vecFee, const CFeeRate& minRelayFee)
     {
         BOOST_FOREACH(CFeeRate fee, vecFee)
         {
-            if (fee < CFeeRate(0))
-                return false;
-            if (fee.GetFeePerK() > minRelayFee.GetFeePerK() * 10000)
+            if (!AreSane(fee, minRelayFee))
                 return false;
         }
         return true;
     }
-    bool AreSane(const std::vector<double> vecPriority)
+    static bool AreSane(const double priority)
+    {
+        return priority >= 0;
+    }
+    static bool AreSane(const std::vector<double> vecPriority)
     {
         BOOST_FOREACH(double priority, vecPriority)
         {
-            if (priority < 0)
+            if (!AreSane(priority))
                 return false;
         }
         return true;
@@ -166,12 +177,12 @@ private:
         bool sufficientFee = (feeRate > minRelayFee);
         bool sufficientPriority = AllowFree(dPriority);
         const char* assignedTo = "unassigned";
-        if (sufficientFee && !sufficientPriority)
+        if (sufficientFee && !sufficientPriority && CBlockAverage::AreSane(feeRate, minRelayFee))
         {
             history[nBlocksTruncated].RecordFee(feeRate);
             assignedTo = "fee";
         }
-        else if (sufficientPriority && !sufficientFee)
+        else if (sufficientPriority && !sufficientFee && CBlockAverage::AreSane(dPriority))
         {
             history[nBlocksTruncated].RecordPriority(dPriority);
             assignedTo = "priority";
@@ -181,7 +192,7 @@ private:
             // Neither or both fee and priority sufficient to get confirmed:
             // don't know why they got confirmed.
         }
-        LogPrint("estimatefee", "Seen TX confirm: %s : %s fee/%g priority, took %d blocks\n",
+        LogPrint("estimatefee", "Seen TX confirm: %s: %s fee/%g priority, took %d blocks\n",
                  assignedTo, feeRate.ToString(), dPriority, nBlocksAgo);
     }
 
@@ -240,8 +251,8 @@ public:
             }
         }
 
-        //After new samples are added, we have to clear the sorted lists,
-        //so they'll be resorted the next time someone asks for an estimate
+        // After new samples are added, we have to clear the sorted lists,
+        // so they'll be resorted the next time someone asks for an estimate
         sortedFeeSamples.clear();
         sortedPrioritySamples.clear();
 
@@ -426,26 +437,32 @@ bool CTxMemPool::addUnchecked(const uint256& hash, const CTxMemPoolEntry &entry)
 }
 
 
-void CTxMemPool::remove(const CTransaction &tx, std::list<CTransaction>& removed, bool fRecursive)
+void CTxMemPool::remove(const CTransaction &origTx, std::list<CTransaction>& removed, bool fRecursive)
 {
     // Remove transaction from memory pool
     {
         LOCK(cs);
-        uint256 hash = tx.GetHash();
-        if (fRecursive) {
-            for (unsigned int i = 0; i < tx.vout.size(); i++) {
-                std::map<COutPoint, CInPoint>::iterator it = mapNextTx.find(COutPoint(hash, i));
-                if (it == mapNextTx.end())
-                    continue;
-                remove(*it->second.ptx, removed, true);
-            }
-        }
-        if (mapTx.count(hash))
+        std::deque<uint256> txToRemove;
+        txToRemove.push_back(origTx.GetHash());
+        while (!txToRemove.empty())
         {
-            removed.push_front(tx);
+            uint256 hash = txToRemove.front();
+            txToRemove.pop_front();
+            if (!mapTx.count(hash))
+                continue;
+            const CTransaction& tx = mapTx[hash].GetTx();
+            if (fRecursive) {
+                for (unsigned int i = 0; i < tx.vout.size(); i++) {
+                    std::map<COutPoint, CInPoint>::iterator it = mapNextTx.find(COutPoint(hash, i));
+                    if (it == mapNextTx.end())
+                        continue;
+                    txToRemove.push_back(it->second.ptx->GetHash());
+                }
+            }
             BOOST_FOREACH(const CTxIn& txin, tx.vin)
                 mapNextTx.erase(txin.prevout);
 
+            removed.push_back(tx);
             totalTxSize -= mapTx[hash].GetTxSize();
             mapTx.erase(hash);
             nTransactionsUpdated++;
@@ -453,6 +470,31 @@ void CTxMemPool::remove(const CTransaction &tx, std::list<CTransaction>& removed
     }
 }
 
+void CTxMemPool::removeCoinbaseSpends(const CCoinsViewCache *pcoins, unsigned int nMemPoolHeight)
+{
+    // Remove transactions spending a coinbase which are now immature
+    LOCK(cs);
+    list<CTransaction> transactionsToRemove;
+    for (std::map<uint256, CTxMemPoolEntry>::const_iterator it = mapTx.begin(); it != mapTx.end(); it++) {
+        const CTransaction& tx = it->second.GetTx();
+        BOOST_FOREACH(const CTxIn& txin, tx.vin) {
+            std::map<uint256, CTxMemPoolEntry>::const_iterator it2 = mapTx.find(txin.prevout.hash);
+            if (it2 != mapTx.end())
+                continue;
+            const CCoins *coins = pcoins->AccessCoins(txin.prevout.hash);
+            if (fSanityCheck) assert(coins);
+            if (!coins || (coins->IsCoinBase() && nMemPoolHeight - coins->nHeight < COINBASE_MATURITY)) {
+                transactionsToRemove.push_back(tx);
+                break;
+            }
+        }
+    }
+    BOOST_FOREACH(const CTransaction& tx, transactionsToRemove) {
+        list<CTransaction> removed;
+        remove(tx, removed, true);
+    }
+}
+
 void CTxMemPool::removeConflicts(const CTransaction &tx, std::list<CTransaction>& removed)
 {
     // Remove transactions which depend on inputs of tx, recursively
@@ -513,17 +555,22 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
 
     uint64_t checkTotal = 0;
 
+    CCoinsViewCache mempoolDuplicate(const_cast<CCoinsViewCache*>(pcoins));
+
     LOCK(cs);
+    list<const CTxMemPoolEntry*> waitingOnDependants;
     for (std::map<uint256, CTxMemPoolEntry>::const_iterator it = mapTx.begin(); it != mapTx.end(); it++) {
         unsigned int i = 0;
         checkTotal += it->second.GetTxSize();
         const CTransaction& tx = it->second.GetTx();
+        bool fDependsWait = false;
         BOOST_FOREACH(const CTxIn &txin, tx.vin) {
             // Check that every mempool transaction's inputs refer to available coins, or other mempool tx's.
             std::map<uint256, CTxMemPoolEntry>::const_iterator it2 = mapTx.find(txin.prevout.hash);
             if (it2 != mapTx.end()) {
                 const CTransaction& tx2 = it2->second.GetTx();
                 assert(tx2.vout.size() > txin.prevout.n && !tx2.vout[txin.prevout.n].IsNull());
+                fDependsWait = true;
             } else {
                 const CCoins* coins = pcoins->AccessCoins(txin.prevout.hash);
                 assert(coins && coins->IsAvailable(txin.prevout.n));
@@ -535,6 +582,28 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
             assert(it3->second.n == i);
             i++;
         }
+        if (fDependsWait)
+            waitingOnDependants.push_back(&it->second);
+        else {
+            CValidationState state;
+            assert(CheckInputs(tx, state, mempoolDuplicate, false, 0, false, NULL));
+            UpdateCoins(tx, state, mempoolDuplicate, 1000000);
+        }
+    }
+    unsigned int stepsSinceLastRemove = 0;
+    while (!waitingOnDependants.empty()) {
+        const CTxMemPoolEntry* entry = waitingOnDependants.front();
+        waitingOnDependants.pop_front();
+        CValidationState state;
+        if (!mempoolDuplicate.HaveInputs(entry->GetTx())) {
+            waitingOnDependants.push_back(entry);
+            stepsSinceLastRemove++;
+            assert(stepsSinceLastRemove < waitingOnDependants.size());
+        } else {
+            assert(CheckInputs(entry->GetTx(), state, mempoolDuplicate, false, 0, false, NULL));
+            UpdateCoins(entry->GetTx(), state, mempoolDuplicate, 1000000);
+            stepsSinceLastRemove = 0;
+        }
     }
     for (std::map<COutPoint, CInPoint>::const_iterator it = mapNextTx.begin(); it != mapNextTx.end(); it++) {
         uint256 hash = it->second.ptx->GetHash();
@@ -588,8 +657,8 @@ CTxMemPool::WriteFeeEstimates(CAutoFile& fileout) const
         fileout << CLIENT_VERSION; // version that wrote the file
         minerPolicyEstimator->Write(fileout);
     }
-    catch (const std::exception &) {
-        LogPrintf("CTxMemPool::WriteFeeEstimates() : unable to write policy estimator data (non-fatal)");
+    catch (const std::exception&) {
+        LogPrintf("CTxMemPool::WriteFeeEstimates(): unable to write policy estimator data (non-fatal)");
         return false;
     }
     return true;
@@ -602,13 +671,13 @@ CTxMemPool::ReadFeeEstimates(CAutoFile& filein)
         int nVersionRequired, nVersionThatWrote;
         filein >> nVersionRequired >> nVersionThatWrote;
         if (nVersionRequired > CLIENT_VERSION)
-            return error("CTxMemPool::ReadFeeEstimates() : up-version (%d) fee estimate file", nVersionRequired);
+            return error("CTxMemPool::ReadFeeEstimates(): up-version (%d) fee estimate file", nVersionRequired);
 
         LOCK(cs);
         minerPolicyEstimator->Read(filein, minRelayFee);
     }
-    catch (const std::exception &) {
-        LogPrintf("CTxMemPool::ReadFeeEstimates() : unable to read policy estimator data (non-fatal)");
+    catch (const std::exception&) {
+        LogPrintf("CTxMemPool::ReadFeeEstimates(): unable to read policy estimator data (non-fatal)");
         return false;
     }
     return true;
diff --git a/src/txmempool.h b/src/txmempool.h
index d00bdd0616..0732af67e6 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -113,6 +113,7 @@ public:
 
     bool addUnchecked(const uint256& hash, const CTxMemPoolEntry &entry);
     void remove(const CTransaction &tx, std::list<CTransaction>& removed, bool fRecursive = false);
+    void removeCoinbaseSpends(const CCoinsViewCache *pcoins, unsigned int nMemPoolHeight);
     void removeConflicts(const CTransaction &tx, std::list<CTransaction>& removed);
     void removeForBlock(const std::vector<CTransaction>& vtx, unsigned int nBlockHeight,
                         std::list<CTransaction>& conflicts);
diff --git a/src/ui_interface.h b/src/ui_interface.h
index 1231d5ed0b..3f11a1ddab 100644
--- a/src/ui_interface.h
+++ b/src/ui_interface.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2010 Satoshi Nakamoto
-// Copyright (c) 2012 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2012 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_UI_INTERFACE_H
diff --git a/src/uint256.cpp b/src/uint256.cpp
index 79406f2475..3b1334a032 100644
--- a/src/uint256.cpp
+++ b/src/uint256.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "uint256.h"
@@ -11,158 +11,25 @@
 #include <string.h>
 
 template <unsigned int BITS>
-base_uint<BITS>::base_uint(const std::string& str)
+base_blob<BITS>::base_blob(const std::vector<unsigned char>& vch)
 {
-    SetHex(str);
+    assert(vch.size() == sizeof(data));
+    memcpy(data, &vch[0], sizeof(data));
 }
 
 template <unsigned int BITS>
-base_uint<BITS>::base_uint(const std::vector<unsigned char>& vch)
+std::string base_blob<BITS>::GetHex() const
 {
-    if (vch.size() != sizeof(pn))
-        throw uint_error("Converting vector of wrong size to base_uint");
-    memcpy(pn, &vch[0], sizeof(pn));
+    char psz[sizeof(data) * 2 + 1];
+    for (unsigned int i = 0; i < sizeof(data); i++)
+        sprintf(psz + i * 2, "%02x", data[sizeof(data) - i - 1]);
+    return std::string(psz, psz + sizeof(data) * 2);
 }
 
 template <unsigned int BITS>
-base_uint<BITS>& base_uint<BITS>::operator<<=(unsigned int shift)
+void base_blob<BITS>::SetHex(const char* psz)
 {
-    base_uint<BITS> a(*this);
-    for (int i = 0; i < WIDTH; i++)
-        pn[i] = 0;
-    int k = shift / 32;
-    shift = shift % 32;
-    for (int i = 0; i < WIDTH; i++) {
-        if (i + k + 1 < WIDTH && shift != 0)
-            pn[i + k + 1] |= (a.pn[i] >> (32 - shift));
-        if (i + k < WIDTH)
-            pn[i + k] |= (a.pn[i] << shift);
-    }
-    return *this;
-}
-
-template <unsigned int BITS>
-base_uint<BITS>& base_uint<BITS>::operator>>=(unsigned int shift)
-{
-    base_uint<BITS> a(*this);
-    for (int i = 0; i < WIDTH; i++)
-        pn[i] = 0;
-    int k = shift / 32;
-    shift = shift % 32;
-    for (int i = 0; i < WIDTH; i++) {
-        if (i - k - 1 >= 0 && shift != 0)
-            pn[i - k - 1] |= (a.pn[i] << (32 - shift));
-        if (i - k >= 0)
-            pn[i - k] |= (a.pn[i] >> shift);
-    }
-    return *this;
-}
-
-template <unsigned int BITS>
-base_uint<BITS>& base_uint<BITS>::operator*=(uint32_t b32)
-{
-    uint64_t carry = 0;
-    for (int i = 0; i < WIDTH; i++) {
-        uint64_t n = carry + (uint64_t)b32 * pn[i];
-        pn[i] = n & 0xffffffff;
-        carry = n >> 32;
-    }
-    return *this;
-}
-
-template <unsigned int BITS>
-base_uint<BITS>& base_uint<BITS>::operator*=(const base_uint& b)
-{
-    base_uint<BITS> a = *this;
-    *this = 0;
-    for (int j = 0; j < WIDTH; j++) {
-        uint64_t carry = 0;
-        for (int i = 0; i + j < WIDTH; i++) {
-            uint64_t n = carry + pn[i + j] + (uint64_t)a.pn[j] * b.pn[i];
-            pn[i + j] = n & 0xffffffff;
-            carry = n >> 32;
-        }
-    }
-    return *this;
-}
-
-template <unsigned int BITS>
-base_uint<BITS>& base_uint<BITS>::operator/=(const base_uint& b)
-{
-    base_uint<BITS> div = b;     // make a copy, so we can shift.
-    base_uint<BITS> num = *this; // make a copy, so we can subtract.
-    *this = 0;                   // the quotient.
-    int num_bits = num.bits();
-    int div_bits = div.bits();
-    if (div_bits == 0)
-        throw uint_error("Division by zero");
-    if (div_bits > num_bits) // the result is certainly 0.
-        return *this;
-    int shift = num_bits - div_bits;
-    div <<= shift; // shift so that div and nun align.
-    while (shift >= 0) {
-        if (num >= div) {
-            num -= div;
-            pn[shift / 32] |= (1 << (shift & 31)); // set a bit of the result.
-        }
-        div >>= 1; // shift back.
-        shift--;
-    }
-    // num now contains the remainder of the division.
-    return *this;
-}
-
-template <unsigned int BITS>
-int base_uint<BITS>::CompareTo(const base_uint<BITS>& b) const
-{
-    for (int i = WIDTH - 1; i >= 0; i--) {
-        if (pn[i] < b.pn[i])
-            return -1;
-        if (pn[i] > b.pn[i])
-            return 1;
-    }
-    return 0;
-}
-
-template <unsigned int BITS>
-bool base_uint<BITS>::EqualTo(uint64_t b) const
-{
-    for (int i = WIDTH - 1; i >= 2; i--) {
-        if (pn[i])
-            return false;
-    }
-    if (pn[1] != (b >> 32))
-        return false;
-    if (pn[0] != (b & 0xfffffffful))
-        return false;
-    return true;
-}
-
-template <unsigned int BITS>
-double base_uint<BITS>::getdouble() const
-{
-    double ret = 0.0;
-    double fact = 1.0;
-    for (int i = 0; i < WIDTH; i++) {
-        ret += fact * pn[i];
-        fact *= 4294967296.0;
-    }
-    return ret;
-}
-
-template <unsigned int BITS>
-std::string base_uint<BITS>::GetHex() const
-{
-    char psz[sizeof(pn) * 2 + 1];
-    for (unsigned int i = 0; i < sizeof(pn); i++)
-        sprintf(psz + i * 2, "%02x", ((unsigned char*)pn)[sizeof(pn) - i - 1]);
-    return std::string(psz, psz + sizeof(pn) * 2);
-}
-
-template <unsigned int BITS>
-void base_uint<BITS>::SetHex(const char* psz)
-{
-    memset(pn, 0, sizeof(pn));
+    memset(data, 0, sizeof(data));
 
     // skip leading spaces
     while (isspace(*psz))
@@ -177,7 +44,7 @@ void base_uint<BITS>::SetHex(const char* psz)
     while (::HexDigit(*psz) != -1)
         psz++;
     psz--;
-    unsigned char* p1 = (unsigned char*)pn;
+    unsigned char* p1 = (unsigned char*)data;
     unsigned char* pend = p1 + WIDTH * 4;
     while (psz >= pbegin && p1 < pend) {
         *p1 = ::HexDigit(*psz--);
@@ -189,110 +56,30 @@ void base_uint<BITS>::SetHex(const char* psz)
 }
 
 template <unsigned int BITS>
-void base_uint<BITS>::SetHex(const std::string& str)
+void base_blob<BITS>::SetHex(const std::string& str)
 {
     SetHex(str.c_str());
 }
 
 template <unsigned int BITS>
-std::string base_uint<BITS>::ToString() const
+std::string base_blob<BITS>::ToString() const
 {
     return (GetHex());
 }
 
-template <unsigned int BITS>
-unsigned int base_uint<BITS>::bits() const
-{
-    for (int pos = WIDTH - 1; pos >= 0; pos--) {
-        if (pn[pos]) {
-            for (int bits = 31; bits > 0; bits--) {
-                if (pn[pos] & 1 << bits)
-                    return 32 * pos + bits + 1;
-            }
-            return 32 * pos + 1;
-        }
-    }
-    return 0;
-}
-
-// Explicit instantiations for base_uint<160>
-template base_uint<160>::base_uint(const std::string&);
-template base_uint<160>::base_uint(const std::vector<unsigned char>&);
-template base_uint<160>& base_uint<160>::operator<<=(unsigned int);
-template base_uint<160>& base_uint<160>::operator>>=(unsigned int);
-template base_uint<160>& base_uint<160>::operator*=(uint32_t b32);
-template base_uint<160>& base_uint<160>::operator*=(const base_uint<160>& b);
-template base_uint<160>& base_uint<160>::operator/=(const base_uint<160>& b);
-template int base_uint<160>::CompareTo(const base_uint<160>&) const;
-template bool base_uint<160>::EqualTo(uint64_t) const;
-template double base_uint<160>::getdouble() const;
-template std::string base_uint<160>::GetHex() const;
-template std::string base_uint<160>::ToString() const;
-template void base_uint<160>::SetHex(const char*);
-template void base_uint<160>::SetHex(const std::string&);
-template unsigned int base_uint<160>::bits() const;
+// Explicit instantiations for base_blob<160>
+template base_blob<160>::base_blob(const std::vector<unsigned char>&);
+template std::string base_blob<160>::GetHex() const;
+template std::string base_blob<160>::ToString() const;
+template void base_blob<160>::SetHex(const char*);
+template void base_blob<160>::SetHex(const std::string&);
 
-// Explicit instantiations for base_uint<256>
-template base_uint<256>::base_uint(const std::string&);
-template base_uint<256>::base_uint(const std::vector<unsigned char>&);
-template base_uint<256>& base_uint<256>::operator<<=(unsigned int);
-template base_uint<256>& base_uint<256>::operator>>=(unsigned int);
-template base_uint<256>& base_uint<256>::operator*=(uint32_t b32);
-template base_uint<256>& base_uint<256>::operator*=(const base_uint<256>& b);
-template base_uint<256>& base_uint<256>::operator/=(const base_uint<256>& b);
-template int base_uint<256>::CompareTo(const base_uint<256>&) const;
-template bool base_uint<256>::EqualTo(uint64_t) const;
-template double base_uint<256>::getdouble() const;
-template std::string base_uint<256>::GetHex() const;
-template std::string base_uint<256>::ToString() const;
-template void base_uint<256>::SetHex(const char*);
-template void base_uint<256>::SetHex(const std::string&);
-template unsigned int base_uint<256>::bits() const;
-
-// This implementation directly uses shifts instead of going
-// through an intermediate MPI representation.
-uint256& uint256::SetCompact(uint32_t nCompact, bool* pfNegative, bool* pfOverflow)
-{
-    int nSize = nCompact >> 24;
-    uint32_t nWord = nCompact & 0x007fffff;
-    if (nSize <= 3) {
-        nWord >>= 8 * (3 - nSize);
-        *this = nWord;
-    } else {
-        *this = nWord;
-        *this <<= 8 * (nSize - 3);
-    }
-    if (pfNegative)
-        *pfNegative = nWord != 0 && (nCompact & 0x00800000) != 0;
-    if (pfOverflow)
-        *pfOverflow = nWord != 0 && ((nSize > 34) ||
-                                     (nWord > 0xff && nSize > 33) ||
-                                     (nWord > 0xffff && nSize > 32));
-    return *this;
-}
-
-uint32_t uint256::GetCompact(bool fNegative) const
-{
-    int nSize = (bits() + 7) / 8;
-    uint32_t nCompact = 0;
-    if (nSize <= 3) {
-        nCompact = GetLow64() << 8 * (3 - nSize);
-    } else {
-        uint256 bn = *this >> 8 * (nSize - 3);
-        nCompact = bn.GetLow64();
-    }
-    // The 0x00800000 bit denotes the sign.
-    // Thus, if it is already set, divide the mantissa by 256 and increase the exponent.
-    if (nCompact & 0x00800000) {
-        nCompact >>= 8;
-        nSize++;
-    }
-    assert((nCompact & ~0x007fffff) == 0);
-    assert(nSize < 256);
-    nCompact |= nSize << 24;
-    nCompact |= (fNegative && (nCompact & 0x007fffff) ? 0x00800000 : 0);
-    return nCompact;
-}
+// Explicit instantiations for base_blob<256>
+template base_blob<256>::base_blob(const std::vector<unsigned char>&);
+template std::string base_blob<256>::GetHex() const;
+template std::string base_blob<256>::ToString() const;
+template void base_blob<256>::SetHex(const char*);
+template void base_blob<256>::SetHex(const std::string&);
 
 static void inline HashMix(uint32_t& a, uint32_t& b, uint32_t& c)
 {
@@ -339,18 +126,20 @@ static void inline HashFinal(uint32_t& a, uint32_t& b, uint32_t& c)
 uint64_t uint256::GetHash(const uint256& salt) const
 {
     uint32_t a, b, c;
+    const uint32_t *pn = (const uint32_t*)data;
+    const uint32_t *salt_pn = (const uint32_t*)salt.data;
     a = b = c = 0xdeadbeef + (WIDTH << 2);
 
-    a += pn[0] ^ salt.pn[0];
-    b += pn[1] ^ salt.pn[1];
-    c += pn[2] ^ salt.pn[2];
+    a += pn[0] ^ salt_pn[0];
+    b += pn[1] ^ salt_pn[1];
+    c += pn[2] ^ salt_pn[2];
     HashMix(a, b, c);
-    a += pn[3] ^ salt.pn[3];
-    b += pn[4] ^ salt.pn[4];
-    c += pn[5] ^ salt.pn[5];
+    a += pn[3] ^ salt_pn[3];
+    b += pn[4] ^ salt_pn[4];
+    c += pn[5] ^ salt_pn[5];
     HashMix(a, b, c);
-    a += pn[6] ^ salt.pn[6];
-    b += pn[7] ^ salt.pn[7];
+    a += pn[6] ^ salt_pn[6];
+    b += pn[7] ^ salt_pn[7];
     HashFinal(a, b, c);
 
     return ((((uint64_t)b) << 32) | c);
diff --git a/src/uint256.h b/src/uint256.h
index 56f7f44a16..6d016ab164 100644
--- a/src/uint256.h
+++ b/src/uint256.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -13,217 +13,37 @@
 #include <string>
 #include <vector>
 
-class uint_error : public std::runtime_error {
-public:
-    explicit uint_error(const std::string& str) : std::runtime_error(str) {}
-};
-
-/** Template base class for unsigned big integers. */
+/** Template base class for fixed-sized opaque blobs. */
 template<unsigned int BITS>
-class base_uint
+class base_blob
 {
 protected:
-    enum { WIDTH=BITS/32 };
-    uint32_t pn[WIDTH];
+    enum { WIDTH=BITS/8 };
+    uint8_t data[WIDTH];
 public:
-
-    base_uint()
+    base_blob()
     {
-        for (int i = 0; i < WIDTH; i++)
-            pn[i] = 0;
+        memset(data, 0, sizeof(data));
     }
 
-    base_uint(const base_uint& b)
-    {
-        for (int i = 0; i < WIDTH; i++)
-            pn[i] = b.pn[i];
-    }
+    explicit base_blob(const std::vector<unsigned char>& vch);
 
-    base_uint& operator=(const base_uint& b)
+    bool IsNull() const
     {
         for (int i = 0; i < WIDTH; i++)
-            pn[i] = b.pn[i];
-        return *this;
-    }
-
-    base_uint(uint64_t b)
-    {
-        pn[0] = (unsigned int)b;
-        pn[1] = (unsigned int)(b >> 32);
-        for (int i = 2; i < WIDTH; i++)
-            pn[i] = 0;
-    }
-
-    explicit base_uint(const std::string& str);
-    explicit base_uint(const std::vector<unsigned char>& vch);
-
-    bool operator!() const
-    {
-        for (int i = 0; i < WIDTH; i++)
-            if (pn[i] != 0)
+            if (data[i] != 0)
                 return false;
         return true;
     }
 
-    const base_uint operator~() const
-    {
-        base_uint ret;
-        for (int i = 0; i < WIDTH; i++)
-            ret.pn[i] = ~pn[i];
-        return ret;
-    }
-
-    const base_uint operator-() const
-    {
-        base_uint ret;
-        for (int i = 0; i < WIDTH; i++)
-            ret.pn[i] = ~pn[i];
-        ret++;
-        return ret;
-    }
-
-    double getdouble() const;
-
-    base_uint& operator=(uint64_t b)
-    {
-        pn[0] = (unsigned int)b;
-        pn[1] = (unsigned int)(b >> 32);
-        for (int i = 2; i < WIDTH; i++)
-            pn[i] = 0;
-        return *this;
-    }
-
-    base_uint& operator^=(const base_uint& b)
-    {
-        for (int i = 0; i < WIDTH; i++)
-            pn[i] ^= b.pn[i];
-        return *this;
-    }
-
-    base_uint& operator&=(const base_uint& b)
-    {
-        for (int i = 0; i < WIDTH; i++)
-            pn[i] &= b.pn[i];
-        return *this;
-    }
-
-    base_uint& operator|=(const base_uint& b)
-    {
-        for (int i = 0; i < WIDTH; i++)
-            pn[i] |= b.pn[i];
-        return *this;
-    }
-
-    base_uint& operator^=(uint64_t b)
-    {
-        pn[0] ^= (unsigned int)b;
-        pn[1] ^= (unsigned int)(b >> 32);
-        return *this;
-    }
-
-    base_uint& operator|=(uint64_t b)
+    void SetNull()
     {
-        pn[0] |= (unsigned int)b;
-        pn[1] |= (unsigned int)(b >> 32);
-        return *this;
+        memset(data, 0, sizeof(data));
     }
 
-    base_uint& operator<<=(unsigned int shift);
-    base_uint& operator>>=(unsigned int shift);
-
-    base_uint& operator+=(const base_uint& b)
-    {
-        uint64_t carry = 0;
-        for (int i = 0; i < WIDTH; i++)
-        {
-            uint64_t n = carry + pn[i] + b.pn[i];
-            pn[i] = n & 0xffffffff;
-            carry = n >> 32;
-        }
-        return *this;
-    }
-
-    base_uint& operator-=(const base_uint& b)
-    {
-        *this += -b;
-        return *this;
-    }
-
-    base_uint& operator+=(uint64_t b64)
-    {
-        base_uint b;
-        b = b64;
-        *this += b;
-        return *this;
-    }
-
-    base_uint& operator-=(uint64_t b64)
-    {
-        base_uint b;
-        b = b64;
-        *this += -b;
-        return *this;
-    }
-
-    base_uint& operator*=(uint32_t b32);
-    base_uint& operator*=(const base_uint& b);
-    base_uint& operator/=(const base_uint& b);
-
-    base_uint& operator++()
-    {
-        // prefix operator
-        int i = 0;
-        while (++pn[i] == 0 && i < WIDTH-1)
-            i++;
-        return *this;
-    }
-
-    const base_uint operator++(int)
-    {
-        // postfix operator
-        const base_uint ret = *this;
-        ++(*this);
-        return ret;
-    }
-
-    base_uint& operator--()
-    {
-        // prefix operator
-        int i = 0;
-        while (--pn[i] == (uint32_t)-1 && i < WIDTH-1)
-            i++;
-        return *this;
-    }
-
-    const base_uint operator--(int)
-    {
-        // postfix operator
-        const base_uint ret = *this;
-        --(*this);
-        return ret;
-    }
-
-    int CompareTo(const base_uint& b) const;
-    bool EqualTo(uint64_t b) const;
-
-    friend inline const base_uint operator+(const base_uint& a, const base_uint& b) { return base_uint(a) += b; }
-    friend inline const base_uint operator-(const base_uint& a, const base_uint& b) { return base_uint(a) -= b; }
-    friend inline const base_uint operator*(const base_uint& a, const base_uint& b) { return base_uint(a) *= b; }
-    friend inline const base_uint operator/(const base_uint& a, const base_uint& b) { return base_uint(a) /= b; }
-    friend inline const base_uint operator|(const base_uint& a, const base_uint& b) { return base_uint(a) |= b; }
-    friend inline const base_uint operator&(const base_uint& a, const base_uint& b) { return base_uint(a) &= b; }
-    friend inline const base_uint operator^(const base_uint& a, const base_uint& b) { return base_uint(a) ^= b; }
-    friend inline const base_uint operator>>(const base_uint& a, int shift) { return base_uint(a) >>= shift; }
-    friend inline const base_uint operator<<(const base_uint& a, int shift) { return base_uint(a) <<= shift; }
-    friend inline const base_uint operator*(const base_uint& a, uint32_t b) { return base_uint(a) *= b; }
-    friend inline bool operator==(const base_uint& a, const base_uint& b) { return memcmp(a.pn, b.pn, sizeof(a.pn)) == 0; }
-    friend inline bool operator!=(const base_uint& a, const base_uint& b) { return memcmp(a.pn, b.pn, sizeof(a.pn)) != 0; }
-    friend inline bool operator>(const base_uint& a, const base_uint& b) { return a.CompareTo(b) > 0; }
-    friend inline bool operator<(const base_uint& a, const base_uint& b) { return a.CompareTo(b) < 0; }
-    friend inline bool operator>=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) >= 0; }
-    friend inline bool operator<=(const base_uint& a, const base_uint& b) { return a.CompareTo(b) <= 0; }
-    friend inline bool operator==(const base_uint& a, uint64_t b) { return a.EqualTo(b); }
-    friend inline bool operator!=(const base_uint& a, uint64_t b) { return !a.EqualTo(b); }
+    friend inline bool operator==(const base_blob& a, const base_blob& b) { return memcmp(a.data, b.data, sizeof(a.data)) == 0; }
+    friend inline bool operator!=(const base_blob& a, const base_blob& b) { return memcmp(a.data, b.data, sizeof(a.data)) != 0; }
+    friend inline bool operator<(const base_blob& a, const base_blob& b) { return memcmp(a.data, b.data, sizeof(a.data)) < 0; }
 
     std::string GetHex() const;
     void SetHex(const char* psz);
@@ -232,102 +52,107 @@ public:
 
     unsigned char* begin()
     {
-        return (unsigned char*)&pn[0];
+        return &data[0];
     }
 
     unsigned char* end()
     {
-        return (unsigned char*)&pn[WIDTH];
+        return &data[WIDTH];
     }
 
     const unsigned char* begin() const
     {
-        return (unsigned char*)&pn[0];
+        return &data[0];
     }
 
     const unsigned char* end() const
     {
-        return (unsigned char*)&pn[WIDTH];
+        return &data[WIDTH];
     }
 
     unsigned int size() const
     {
-        return sizeof(pn);
-    }
-
-    /**
-     * Returns the position of the highest bit set plus one, or zero if the
-     * value is zero.
-     */
-    unsigned int bits() const;
-
-    uint64_t GetLow64() const
-    {
-        assert(WIDTH >= 2);
-        return pn[0] | (uint64_t)pn[1] << 32;
+        return sizeof(data);
     }
 
     unsigned int GetSerializeSize(int nType, int nVersion) const
     {
-        return sizeof(pn);
+        return sizeof(data);
     }
 
     template<typename Stream>
     void Serialize(Stream& s, int nType, int nVersion) const
     {
-        s.write((char*)pn, sizeof(pn));
+        s.write((char*)data, sizeof(data));
     }
 
     template<typename Stream>
     void Unserialize(Stream& s, int nType, int nVersion)
     {
-        s.read((char*)pn, sizeof(pn));
+        s.read((char*)data, sizeof(data));
     }
 };
 
-/** 160-bit unsigned big integer. */
-class uint160 : public base_uint<160> {
+/** 160-bit opaque blob.
+ * @note This type is called uint160 for historical reasons only. It is an opaque
+ * blob of 160 bits and has no integer operations.
+ */
+class uint160 : public base_blob<160> {
 public:
     uint160() {}
-    uint160(const base_uint<160>& b) : base_uint<160>(b) {}
-    uint160(uint64_t b) : base_uint<160>(b) {}
-    explicit uint160(const std::string& str) : base_uint<160>(str) {}
-    explicit uint160(const std::vector<unsigned char>& vch) : base_uint<160>(vch) {}
+    uint160(const base_blob<160>& b) : base_blob<160>(b) {}
+    explicit uint160(const std::vector<unsigned char>& vch) : base_blob<160>(vch) {}
 };
 
-/** 256-bit unsigned big integer. */
-class uint256 : public base_uint<256> {
+/** 256-bit opaque blob.
+ * @note This type is called uint256 for historical reasons only. It is an
+ * opaque blob of 256 bits and has no integer operations. Use arith_uint256 if
+ * those are required.
+ */
+class uint256 : public base_blob<256> {
 public:
     uint256() {}
-    uint256(const base_uint<256>& b) : base_uint<256>(b) {}
-    uint256(uint64_t b) : base_uint<256>(b) {}
-    explicit uint256(const std::string& str) : base_uint<256>(str) {}
-    explicit uint256(const std::vector<unsigned char>& vch) : base_uint<256>(vch) {}
-    
-    /**
-     * The "compact" format is a representation of a whole
-     * number N using an unsigned 32bit number similar to a
-     * floating point format.
-     * The most significant 8 bits are the unsigned exponent of base 256.
-     * This exponent can be thought of as "number of bytes of N".
-     * The lower 23 bits are the mantissa.
-     * Bit number 24 (0x800000) represents the sign of N.
-     * N = (-1^sign) * mantissa * 256^(exponent-3)
-     * 
-     * Satoshi's original implementation used BN_bn2mpi() and BN_mpi2bn().
-     * MPI uses the most significant bit of the first byte as sign.
-     * Thus 0x1234560000 is compact (0x05123456)
-     * and  0xc0de000000 is compact (0x0600c0de)
-     * 
-     * Bitcoin only uses this "compact" format for encoding difficulty
-     * targets, which are unsigned 256bit quantities.  Thus, all the
-     * complexities of the sign bit and using base 256 are probably an
-     * implementation accident.
+    uint256(const base_blob<256>& b) : base_blob<256>(b) {}
+    explicit uint256(const std::vector<unsigned char>& vch) : base_blob<256>(vch) {}
+
+    /** A cheap hash function that just returns 64 bits from the result, it can be
+     * used when the contents are considered uniformly random. It is not appropriate
+     * when the value can easily be influenced from outside as e.g. a network adversary could
+     * provide values to trigger worst-case behavior.
+     * @note The result of this function is not stable between little and big endian.
      */
-    uint256& SetCompact(uint32_t nCompact, bool *pfNegative = NULL, bool *pfOverflow = NULL);
-    uint32_t GetCompact(bool fNegative = false) const;
+    uint64_t GetCheapHash() const
+    {
+        uint64_t result;
+        memcpy((void*)&result, (void*)data, 8);
+        return result;
+    }
 
+    /** A more secure, salted hash function.
+     * @note This hash is not stable between little and big endian.
+     */
     uint64_t GetHash(const uint256& salt) const;
 };
 
+/* uint256 from const char *.
+ * This is a separate function because the constructor uint256(const char*) can result
+ * in dangerously catching uint256(0).
+ */
+inline uint256 uint256S(const char *str)
+{
+    uint256 rv;
+    rv.SetHex(str);
+    return rv;
+}
+/* uint256 from std::string.
+ * This is a separate function because the constructor uint256(const std::string &str) can result
+ * in dangerously catching uint256(0) via std::string(const char*).
+ */
+inline uint256 uint256S(const std::string& str)
+{
+    uint256 rv;
+    rv.SetHex(str);
+    return rv;
+}
+
 #endif // BITCOIN_UINT256_H
diff --git a/src/undo.h b/src/undo.h
index 2301bd8b43..1c4ed95bf2 100644
--- a/src/undo.h
+++ b/src/undo.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
+// Copyright (c) 2009-2013 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -68,4 +68,18 @@ public:
     }
 };
 
+/** Undo information for a CBlock */
+class CBlockUndo
+{
+public:
+    std::vector<CTxUndo> vtxundo; // for all but the coinbase
+
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
+        READWRITE(vtxundo);
+    }
+};
+
 #endif // BITCOIN_UNDO_H
diff --git a/src/univalue/gen.cpp b/src/univalue/gen.cpp
index f0b352eef0..abebe88634 100644
--- a/src/univalue/gen.cpp
+++ b/src/univalue/gen.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 BitPay Inc.
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 //
diff --git a/src/univalue/univalue.cpp b/src/univalue/univalue.cpp
index b0171e48c4..4e445a542a 100644
--- a/src/univalue/univalue.cpp
+++ b/src/univalue/univalue.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 BitPay Inc.
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <stdint.h>
diff --git a/src/univalue/univalue.h b/src/univalue/univalue.h
index 5ac301d9e5..88d73b8c64 100644
--- a/src/univalue/univalue.h
+++ b/src/univalue/univalue.h
@@ -1,5 +1,5 @@
 // Copyright 2014 BitPay Inc.
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_UNIVALUE_UNIVALUE_H
diff --git a/src/univalue/univalue_read.cpp b/src/univalue/univalue_read.cpp
index 405be3e81f..5cea778996 100644
--- a/src/univalue/univalue_read.cpp
+++ b/src/univalue/univalue_read.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 BitPay Inc.
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <string.h>
diff --git a/src/univalue/univalue_write.cpp b/src/univalue/univalue_write.cpp
index 9565cfa11a..9a1d364c95 100644
--- a/src/univalue/univalue_write.cpp
+++ b/src/univalue/univalue_write.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 BitPay Inc.
-// Distributed under the MIT/X11 software license, see the accompanying
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <ctype.h>
diff --git a/src/util.cpp b/src/util.cpp
index 0cdf4e614d..0d0f7e5f91 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -346,7 +346,7 @@ bool SoftSetBoolArg(const std::string& strArg, bool fValue)
         return SoftSetArg(strArg, std::string("0"));
 }
 
-static std::string FormatException(std::exception* pex, const char* pszThread)
+static std::string FormatException(const std::exception* pex, const char* pszThread)
 {
 #ifdef WIN32
     char pszModule[MAX_PATH] = "";
@@ -362,7 +362,7 @@ static std::string FormatException(std::exception* pex, const char* pszThread)
             "UNKNOWN EXCEPTION       \n%s in %s       \n", pszModule, pszThread);
 }
 
-void PrintExceptionContinue(std::exception* pex, const char* pszThread)
+void PrintExceptionContinue(const std::exception* pex, const char* pszThread)
 {
     std::string message = FormatException(pex, pszThread);
     LogPrintf("\n\n************************\n%s\n", message);
@@ -514,7 +514,7 @@ bool TryCreateDirectory(const boost::filesystem::path& p)
     try
     {
         return boost::filesystem::create_directory(p);
-    } catch (boost::filesystem::filesystem_error) {
+    } catch (const boost::filesystem::filesystem_error&) {
         if (!boost::filesystem::exists(p) || !boost::filesystem::is_directory(p))
             throw;
     }
@@ -721,8 +721,7 @@ void SetupEnvironment()
 #else // boost filesystem v2
             std::locale();                      // Raises runtime error if current locale is invalid
 #endif
-    } catch(std::runtime_error &e)
-    {
+    } catch (const std::runtime_error&) {
         setenv("LC_ALL", "C", 1); // Force C locale
     }
 #endif
diff --git a/src/util.h b/src/util.h
index a4aaf29f91..bbb0e81039 100644
--- a/src/util.h
+++ b/src/util.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -84,7 +84,7 @@ static inline bool error(const char* format)
     return false;
 }
 
-void PrintExceptionContinue(std::exception* pex, const char* pszThread);
+void PrintExceptionContinue(const std::exception *pex, const char* pszThread);
 void ParseParameters(int argc, const char*const argv[]);
 void FileCommit(FILE *fileout);
 bool TruncateFile(FILE *file, unsigned int length);
@@ -186,12 +186,12 @@ template <typename Callable> void LoopForever(const char* name,  Callable func,
             func();
         }
     }
-    catch (boost::thread_interrupted)
+    catch (const boost::thread_interrupted&)
     {
         LogPrintf("%s thread stop\n", name);
         throw;
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         PrintExceptionContinue(&e, name);
         throw;
     }
@@ -214,12 +214,12 @@ template <typename Callable> void TraceThread(const char* name,  Callable func)
         func();
         LogPrintf("%s thread exit\n", name);
     }
-    catch (boost::thread_interrupted)
+    catch (const boost::thread_interrupted&)
     {
         LogPrintf("%s thread interrupt\n", name);
         throw;
     }
-    catch (std::exception& e) {
+    catch (const std::exception& e) {
         PrintExceptionContinue(&e, name);
         throw;
     }
diff --git a/src/utilmoneystr.cpp b/src/utilmoneystr.cpp
index 3e076a0266..2fbc048878 100644
--- a/src/utilmoneystr.cpp
+++ b/src/utilmoneystr.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/utilmoneystr.h b/src/utilmoneystr.h
index 6a153db5fa..cd9b04810d 100644
--- a/src/utilmoneystr.h
+++ b/src/utilmoneystr.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/utilstrencodings.cpp b/src/utilstrencodings.cpp
index d0062d4544..c15bddc6fb 100644
--- a/src/utilstrencodings.cpp
+++ b/src/utilstrencodings.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -459,7 +459,7 @@ std::string FormatParagraph(const std::string in, size_t width, size_t indent)
         }
         // Append word
         out << in.substr(ptr, endword - ptr);
-        col += endword - ptr;
+        col += endword - ptr + 1;
         ptr = endword;
     }
     return out.str();
diff --git a/src/utilstrencodings.h b/src/utilstrencodings.h
index 0c0171b894..b0edd8b542 100644
--- a/src/utilstrencodings.h
+++ b/src/utilstrencodings.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/utiltime.cpp b/src/utiltime.cpp
index 9c137e8aa0..8f0dcae29d 100644
--- a/src/utiltime.cpp
+++ b/src/utiltime.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/utiltime.h b/src/utiltime.h
index 9d7d42fe47..900992f871 100644
--- a/src/utiltime.h
+++ b/src/utiltime.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/version.h b/src/version.h
index a5a72c5467..38b3d2e734 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2012-2014 The Bitcoin developers
+// Copyright (c) 2012-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/wallet.cpp b/src/wallet.cpp
index 27dbf61c2b..b51c4d4b14 100644
--- a/src/wallet.cpp
+++ b/src/wallet.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -26,6 +26,7 @@ using namespace std;
  * Settings
  */
 CFeeRate payTxFee(DEFAULT_TRANSACTION_FEE);
+CAmount maxTxFee = DEFAULT_TRANSACTION_MAXFEE;
 unsigned int nTxConfirmTarget = 1;
 bool bSpendZeroConfChange = true;
 bool fSendFreeTransactions = false;
@@ -70,7 +71,6 @@ CPubKey CWallet::GenerateNewKey()
     AssertLockHeld(cs_wallet); // mapKeyMetadata
     bool fCompressed = CanSupportFeature(FEATURE_COMPRPUBKEY); // default to compressed public keys if we want 0.6.0 wallets
 
-    RandAddSeedPerfmon();
     CKey secret;
     secret.MakeNewKey(fCompressed);
 
@@ -88,7 +88,7 @@ CPubKey CWallet::GenerateNewKey()
         nTimeFirstKey = nCreationTime;
 
     if (!AddKeyPubKey(secret, pubkey))
-        throw std::runtime_error("CWallet::GenerateNewKey() : AddKey failed");
+        throw std::runtime_error("CWallet::GenerateNewKey(): AddKey failed");
     return pubkey;
 }
 
@@ -555,7 +555,7 @@ void CWallet::MarkDirty()
     }
 }
 
-bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
+bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet, CWalletDB* pwalletdb)
 {
     uint256 hash = wtxIn.GetHash();
 
@@ -576,10 +576,10 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
         if (fInsertedNew)
         {
             wtx.nTimeReceived = GetAdjustedTime();
-            wtx.nOrderPos = IncOrderPosNext();
+            wtx.nOrderPos = IncOrderPosNext(pwalletdb);
 
             wtx.nTimeSmart = wtx.nTimeReceived;
-            if (wtxIn.hashBlock != 0)
+            if (!wtxIn.hashBlock.IsNull())
             {
                 if (mapBlockIndex.count(wtxIn.hashBlock))
                 {
@@ -619,7 +619,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
                     wtx.nTimeSmart = std::max(latestEntry, std::min(blocktime, latestNow));
                 }
                 else
-                    LogPrintf("AddToWallet() : found %s in block %s not in index\n",
+                    LogPrintf("AddToWallet(): found %s in block %s not in index\n",
                              wtxIn.GetHash().ToString(),
                              wtxIn.hashBlock.ToString());
             }
@@ -630,7 +630,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
         if (!fInsertedNew)
         {
             // Merge
-            if (wtxIn.hashBlock != 0 && wtxIn.hashBlock != wtx.hashBlock)
+            if (!wtxIn.hashBlock.IsNull() && wtxIn.hashBlock != wtx.hashBlock)
             {
                 wtx.hashBlock = wtxIn.hashBlock;
                 fUpdated = true;
@@ -653,7 +653,7 @@ bool CWallet::AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet)
 
         // Write to disk
         if (fInsertedNew || fUpdated)
-            if (!wtx.WriteToDisk())
+            if (!wtx.WriteToDisk(pwalletdb))
                 return false;
 
         // Break debit/credit balance caches:
@@ -689,10 +689,16 @@ bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pbl
         if (fExisted || IsMine(tx) || IsFromMe(tx))
         {
             CWalletTx wtx(this,tx);
+
             // Get merkle branch if transaction was found in a block
             if (pblock)
                 wtx.SetMerkleBranch(*pblock);
-            return AddToWallet(wtx);
+
+            // Do not flush the wallet here for performance reasons
+            // this is safe, as in case of a crash, we rescan the necessary blocks on startup through our SetBestChain-mechanism
+            CWalletDB walletdb(strWalletFile, "r+", false);
+
+            return AddToWallet(wtx, false, &walletdb);
         }
     }
     return false;
@@ -795,7 +801,7 @@ int CWalletTx::GetRequestCount() const
         if (IsCoinBase())
         {
             // Generated block
-            if (hashBlock != 0)
+            if (!hashBlock.IsNull())
             {
                 map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
                 if (mi != pwallet->mapRequestCount.end())
@@ -811,7 +817,7 @@ int CWalletTx::GetRequestCount() const
                 nRequests = (*mi).second;
 
                 // How about the block it's in?
-                if (nRequests == 0 && hashBlock != 0)
+                if (nRequests == 0 && !hashBlock.IsNull())
                 {
                     map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
                     if (mi != pwallet->mapRequestCount.end())
@@ -916,9 +922,9 @@ void CWalletTx::GetAccountAmounts(const string& strAccount, CAmount& nReceived,
 }
 
 
-bool CWalletTx::WriteToDisk()
+bool CWalletTx::WriteToDisk(CWalletDB *pwalletdb)
 {
-    return CWalletDB(pwallet->strWalletFile).WriteTx(GetHash(), *this);
+    return pwalletdb->WriteTx(GetHash(), *this);
 }
 
 /**
@@ -1009,6 +1015,193 @@ set<uint256> CWalletTx::GetConflicts() const
     return result;
 }
 
+CAmount CWalletTx::GetDebit(const isminefilter& filter) const
+{
+    if (vin.empty())
+        return 0;
+
+    CAmount debit = 0;
+    if(filter & ISMINE_SPENDABLE)
+    {
+        if (fDebitCached)
+            debit += nDebitCached;
+        else
+        {
+            nDebitCached = pwallet->GetDebit(*this, ISMINE_SPENDABLE);
+            fDebitCached = true;
+            debit += nDebitCached;
+        }
+    }
+    if(filter & ISMINE_WATCH_ONLY)
+    {
+        if(fWatchDebitCached)
+            debit += nWatchDebitCached;
+        else
+        {
+            nWatchDebitCached = pwallet->GetDebit(*this, ISMINE_WATCH_ONLY);
+            fWatchDebitCached = true;
+            debit += nWatchDebitCached;
+        }
+    }
+    return debit;
+}
+
+CAmount CWalletTx::GetCredit(const isminefilter& filter) const
+{
+    // Must wait until coinbase is safely deep enough in the chain before valuing it
+    if (IsCoinBase() && GetBlocksToMaturity() > 0)
+        return 0;
+
+    int64_t credit = 0;
+    if (filter & ISMINE_SPENDABLE)
+    {
+        // GetBalance can assume transactions in mapWallet won't change
+        if (fCreditCached)
+            credit += nCreditCached;
+        else
+        {
+            nCreditCached = pwallet->GetCredit(*this, ISMINE_SPENDABLE);
+            fCreditCached = true;
+            credit += nCreditCached;
+        }
+    }
+    if (filter & ISMINE_WATCH_ONLY)
+    {
+        if (fWatchCreditCached)
+            credit += nWatchCreditCached;
+        else
+        {
+            nWatchCreditCached = pwallet->GetCredit(*this, ISMINE_WATCH_ONLY);
+            fWatchCreditCached = true;
+            credit += nWatchCreditCached;
+        }
+    }
+    return credit;
+}
+
+CAmount CWalletTx::GetImmatureCredit(bool fUseCache) const
+{
+    if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
+    {
+        if (fUseCache && fImmatureCreditCached)
+            return nImmatureCreditCached;
+        nImmatureCreditCached = pwallet->GetCredit(*this, ISMINE_SPENDABLE);
+        fImmatureCreditCached = true;
+        return nImmatureCreditCached;
+    }
+
+    return 0;
+}
+
+CAmount CWalletTx::GetAvailableCredit(bool fUseCache) const
+{
+    if (pwallet == 0)
+        return 0;
+
+    // Must wait until coinbase is safely deep enough in the chain before valuing it
+    if (IsCoinBase() && GetBlocksToMaturity() > 0)
+        return 0;
+
+    if (fUseCache && fAvailableCreditCached)
+        return nAvailableCreditCached;
+
+    CAmount nCredit = 0;
+    uint256 hashTx = GetHash();
+    for (unsigned int i = 0; i < vout.size(); i++)
+    {
+        if (!pwallet->IsSpent(hashTx, i))
+        {
+            const CTxOut &txout = vout[i];
+            nCredit += pwallet->GetCredit(txout, ISMINE_SPENDABLE);
+            if (!MoneyRange(nCredit))
+                throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
+        }
+    }
+
+    nAvailableCreditCached = nCredit;
+    fAvailableCreditCached = true;
+    return nCredit;
+}
+
+CAmount CWalletTx::GetImmatureWatchOnlyCredit(const bool& fUseCache) const
+{
+    if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
+    {
+        if (fUseCache && fImmatureWatchCreditCached)
+            return nImmatureWatchCreditCached;
+        nImmatureWatchCreditCached = pwallet->GetCredit(*this, ISMINE_WATCH_ONLY);
+        fImmatureWatchCreditCached = true;
+        return nImmatureWatchCreditCached;
+    }
+
+    return 0;
+}
+
+CAmount CWalletTx::GetAvailableWatchOnlyCredit(const bool& fUseCache) const
+{
+    if (pwallet == 0)
+        return 0;
+
+    // Must wait until coinbase is safely deep enough in the chain before valuing it
+    if (IsCoinBase() && GetBlocksToMaturity() > 0)
+        return 0;
+
+    if (fUseCache && fAvailableWatchCreditCached)
+        return nAvailableWatchCreditCached;
+
+    CAmount nCredit = 0;
+    for (unsigned int i = 0; i < vout.size(); i++)
+    {
+        if (!pwallet->IsSpent(GetHash(), i))
+        {
+            const CTxOut &txout = vout[i];
+            nCredit += pwallet->GetCredit(txout, ISMINE_WATCH_ONLY);
+            if (!MoneyRange(nCredit))
+                throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
+        }
+    }
+
+    nAvailableWatchCreditCached = nCredit;
+    fAvailableWatchCreditCached = true;
+    return nCredit;
+}
+
+CAmount CWalletTx::GetChange() const
+{
+    if (fChangeCached)
+        return nChangeCached;
+    nChangeCached = pwallet->GetChange(*this);
+    fChangeCached = true;
+    return nChangeCached;
+}
+
+bool CWalletTx::IsTrusted() const
+{
+    // Quick answer in most cases
+    if (!IsFinalTx(*this))
+        return false;
+    int nDepth = GetDepthInMainChain();
+    if (nDepth >= 1)
+        return true;
+    if (nDepth < 0)
+        return false;
+    if (!bSpendZeroConfChange || !IsFromMe(ISMINE_ALL)) // using wtx's cached debit
+        return false;
+
+    // Trusted if all inputs are from us and are in the mempool:
+    BOOST_FOREACH(const CTxIn& txin, vin)
+    {
+        // Transactions not sent by us: not trusted
+        const CWalletTx* parent = pwallet->GetWalletTx(txin.prevout.hash);
+        if (parent == NULL)
+            return false;
+        const CTxOut& parentOut = parent->vout[txin.prevout.n];
+        if (pwallet->IsMine(parentOut) != ISMINE_SPENDABLE)
+            return false;
+    }
+    return true;
+}
+
 void CWallet::ResendWalletTransactions()
 {
     // Do this infrequently and randomly to avoid giving away
@@ -1382,6 +1575,28 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, CAmount> >& vecSend,
     wtxNew.BindWallet(this);
     CMutableTransaction txNew;
 
+    // Discourage fee sniping.
+    //
+    // However because of a off-by-one-error in previous versions we need to
+    // neuter it by setting nLockTime to at least one less than nBestHeight.
+    // Secondly currently propagation of transactions created for block heights
+    // corresponding to blocks that were just mined may be iffy - transactions
+    // aren't re-accepted into the mempool - we additionally neuter the code by
+    // going ten blocks back. Doesn't yet do anything for sniping, but does act
+    // to shake out wallet bugs like not showing nLockTime'd transactions at
+    // all.
+    txNew.nLockTime = std::max(0, chainActive.Height() - 10);
+
+    // Secondly occasionally randomly pick a nLockTime even further back, so
+    // that transactions that are delayed after signing for whatever reason,
+    // e.g. high-latency mix networks and some CoinJoin implementations, have
+    // better privacy.
+    if (GetRandInt(10) == 0)
+        txNew.nLockTime = std::max(0, (int)txNew.nLockTime - GetRandInt(100));
+
+    assert(txNew.nLockTime <= (unsigned int)chainActive.Height());
+    assert(txNew.nLockTime < LOCKTIME_THRESHOLD);
+
     {
         LOCK2(cs_main, cs_wallet);
         {
@@ -1417,10 +1632,14 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, CAmount> >& vecSend,
                 BOOST_FOREACH(PAIRTYPE(const CWalletTx*, unsigned int) pcoin, setCoins)
                 {
                     CAmount nCredit = pcoin.first->vout[pcoin.second].nValue;
-                    //The priority after the next block (depth+1) is used instead of the current,
+                    //The coin age after the next block (depth+1) is used instead of the current,
                     //reflecting an assumption the user would accept a bit more delay for
                     //a chance at a free transaction.
-                    dPriority += (double)nCredit * (pcoin.first->GetDepthInMainChain()+1);
+                    //But mempool inputs might still be in the mempool, so their age stays 0
+                    int age = pcoin.first->GetDepthInMainChain();
+                    if (age != 0)
+                        age += 1;
+                    dPriority += (double)nCredit * age;
                 }
 
                 CAmount nChange = nValueIn - nValue - nFeeRet;
@@ -1475,8 +1694,12 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, CAmount> >& vecSend,
                     reservekey.ReturnKey();
 
                 // Fill vin
+                //
+                // Note how the sequence number is set to max()-1 so that the
+                // nLockTime set above actually works.
                 BOOST_FOREACH(const PAIRTYPE(const CWalletTx*,unsigned int)& coin, setCoins)
-                    txNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second));
+                    txNew.vin.push_back(CTxIn(coin.first->GetHash(),coin.second,CScript(),
+                                              std::numeric_limits<unsigned int>::max()-1));
 
                 // Sign
                 int nIn = 0;
@@ -1499,27 +1722,32 @@ bool CWallet::CreateTransaction(const vector<pair<CScript, CAmount> >& vecSend,
                 }
                 dPriority = wtxNew.ComputePriority(dPriority, nBytes);
 
-                CAmount nFeeNeeded = GetMinimumFee(nBytes, nTxConfirmTarget, mempool);
+                // Can we complete this as a free transaction?
+                if (fSendFreeTransactions && nBytes <= MAX_FREE_TRANSACTION_CREATE_SIZE)
+                {
+                    // Not enough fee: enough priority?
+                    double dPriorityNeeded = mempool.estimatePriority(nTxConfirmTarget);
+                    // Not enough mempool history to estimate: use hard-coded AllowFree.
+                    if (dPriorityNeeded <= 0 && AllowFree(dPriority))
+                        break;
+
+                    // Small enough, and priority high enough, to send for free
+                    if (dPriorityNeeded > 0 && dPriority >= dPriorityNeeded)
+                        break;
+                }
 
-                if (nFeeRet >= nFeeNeeded)
-                    break; // Done, enough fee included.
+                CAmount nFeeNeeded = GetMinimumFee(nBytes, nTxConfirmTarget, mempool);
 
-                // Too big to send for free? Include more fee and try again:
-                if (!fSendFreeTransactions || nBytes > MAX_FREE_TRANSACTION_CREATE_SIZE)
+                // If we made it here and we aren't even able to meet the relay fee on the next pass, give up
+                // because we must be at the maximum allowed fee.
+                if (nFeeNeeded < ::minRelayTxFee.GetFee(nBytes))
                 {
-                    nFeeRet = nFeeNeeded;
-                    continue;
+                    strFailReason = _("Transaction too large for fee policy");
+                    return false;
                 }
 
-                // Not enough fee: enough priority?
-                double dPriorityNeeded = mempool.estimatePriority(nTxConfirmTarget);
-                // Not enough mempool history to estimate: use hard-coded AllowFree.
-                if (dPriorityNeeded <= 0 && AllowFree(dPriority))
-                    break;
-
-                // Small enough, and priority high enough, to send for free
-                if (dPriorityNeeded > 0 && dPriority >= dPriorityNeeded)
-                    break;
+                if (nFeeRet >= nFeeNeeded)
+                    break; // Done, enough fee included.
 
                 // Include more fee and try again.
                 nFeeRet = nFeeNeeded;
@@ -1550,14 +1778,14 @@ bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
             // This is only to keep the database open to defeat the auto-flush for the
             // duration of this scope.  This is the only place where this optimization
             // maybe makes sense; please don't do it anywhere else.
-            CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r") : NULL;
+            CWalletDB* pwalletdb = fFileBacked ? new CWalletDB(strWalletFile,"r+") : NULL;
 
             // Take key pair from key pool so it won't be used again
             reservekey.KeepKey();
 
             // Add tx to wallet, because if it has change it's also ours,
             // otherwise just for transaction history.
-            AddToWallet(wtxNew);
+            AddToWallet(wtxNew, false, pwalletdb);
 
             // Notify that old coins are spent
             set<CWalletTx*> setCoins;
@@ -1579,7 +1807,7 @@ bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
         if (!wtxNew.AcceptToMemoryPool(false))
         {
             // This must not fail. The transaction has already been signed and recorded.
-            LogPrintf("CommitTransaction() : Error: Transaction not valid");
+            LogPrintf("CommitTransaction(): Error: Transaction not valid");
             return false;
         }
         wtxNew.RelayWalletTransaction();
@@ -1587,53 +1815,10 @@ bool CWallet::CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey)
     return true;
 }
 
-
-
-
-string CWallet::SendMoney(const CTxDestination &address, CAmount nValue, CWalletTx& wtxNew)
-{
-    // Check amount
-    if (nValue <= 0)
-        return _("Invalid amount");
-    if (nValue > GetBalance())
-        return _("Insufficient funds");
-
-    string strError;
-    if (IsLocked())
-    {
-        strError = _("Error: Wallet locked, unable to create transaction!");
-        LogPrintf("SendMoney() : %s", strError);
-        return strError;
-    }
-
-    // Parse Bitcoin address
-    CScript scriptPubKey = GetScriptForDestination(address);
-
-    // Create and send the transaction
-    CReserveKey reservekey(this);
-    CAmount nFeeRequired;
-    if (!CreateTransaction(scriptPubKey, nValue, wtxNew, reservekey, nFeeRequired, strError))
-    {
-        if (nValue + nFeeRequired > GetBalance())
-            strError = strprintf(_("Error: This transaction requires a transaction fee of at least %s because of its amount, complexity, or use of recently received funds!"), FormatMoney(nFeeRequired));
-        LogPrintf("SendMoney() : %s\n", strError);
-        return strError;
-    }
-    if (!CommitTransaction(wtxNew, reservekey))
-        return _("Error: The transaction was rejected! This might happen if some of the coins in your wallet were already spent, such as if you used a copy of wallet.dat and coins were spent in the copy but not marked as spent here.");
-
-    return "";
-}
-
-
-
 CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarget, const CTxMemPool& pool)
 {
     // payTxFee is user-set "I want to pay this much"
     CAmount nFeeNeeded = payTxFee.GetFee(nTxBytes);
-    // prevent user from paying a non-sense fee (like 1 satoshi): 0 < fee < minRelayFee
-    if (nFeeNeeded > 0 && nFeeNeeded < ::minRelayTxFee.GetFee(nTxBytes))
-        nFeeNeeded = ::minRelayTxFee.GetFee(nTxBytes);
     // user selected total at least (default=true)
     if (fPayAtLeastCustomFee && nFeeNeeded > 0 && nFeeNeeded < payTxFee.GetFeePerK())
         nFeeNeeded = payTxFee.GetFeePerK();
@@ -1644,6 +1829,12 @@ CAmount CWallet::GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarge
     // back to a hard-coded fee
     if (nFeeNeeded == 0)
         nFeeNeeded = minTxFee.GetFee(nTxBytes);
+    // prevent user from paying a non-sense fee (like 1 satoshi): 0 < fee < minRelayFee
+    if (nFeeNeeded < ::minRelayTxFee.GetFee(nTxBytes))
+        nFeeNeeded = ::minRelayTxFee.GetFee(nTxBytes);
+    // But always obey the maximum
+    if (nFeeNeeded > maxTxFee)
+        nFeeNeeded = maxTxFee;
     return nFeeNeeded;
 }
 
@@ -1809,7 +2000,7 @@ bool CWallet::TopUpKeyPool(unsigned int kpSize)
             if (!setKeyPool.empty())
                 nEnd = *(--setKeyPool.end()) + 1;
             if (!walletdb.WritePool(nEnd, CKeyPool(GenerateNewKey())))
-                throw runtime_error("TopUpKeyPool() : writing generated key failed");
+                throw runtime_error("TopUpKeyPool(): writing generated key failed");
             setKeyPool.insert(nEnd);
             LogPrintf("keypool added key %d, size=%u\n", nEnd, setKeyPool.size());
         }
@@ -1836,9 +2027,9 @@ void CWallet::ReserveKeyFromKeyPool(int64_t& nIndex, CKeyPool& keypool)
         nIndex = *(setKeyPool.begin());
         setKeyPool.erase(setKeyPool.begin());
         if (!walletdb.ReadPool(nIndex, keypool))
-            throw runtime_error("ReserveKeyFromKeyPool() : read failed");
+            throw runtime_error("ReserveKeyFromKeyPool(): read failed");
         if (!HaveKey(keypool.vchPubKey.GetID()))
-            throw runtime_error("ReserveKeyFromKeyPool() : unknown key in key pool");
+            throw runtime_error("ReserveKeyFromKeyPool(): unknown key in key pool");
         assert(keypool.vchPubKey.IsValid());
         LogPrintf("keypool reserve %d\n", nIndex);
     }
@@ -2086,11 +2277,11 @@ void CWallet::GetAllReserveKeys(set<CKeyID>& setAddress) const
     {
         CKeyPool keypool;
         if (!walletdb.ReadPool(id, keypool))
-            throw runtime_error("GetAllReserveKeyHashes() : read failed");
+            throw runtime_error("GetAllReserveKeyHashes(): read failed");
         assert(keypool.vchPubKey.IsValid());
         CKeyID keyID = keypool.vchPubKey.GetID();
         if (!HaveKey(keyID))
-            throw runtime_error("GetAllReserveKeyHashes() : unknown key in key pool");
+            throw runtime_error("GetAllReserveKeyHashes(): unknown key in key pool");
         setAddress.insert(keyID);
     }
 }
@@ -2303,7 +2494,7 @@ int CMerkleTx::SetMerkleBranch(const CBlock& block)
     {
         vMerkleBranch.clear();
         nIndex = -1;
-        LogPrintf("ERROR: SetMerkleBranch() : couldn't find tx in block\n");
+        LogPrintf("ERROR: SetMerkleBranch(): couldn't find tx in block\n");
         return 0;
     }
 
@@ -2323,7 +2514,7 @@ int CMerkleTx::SetMerkleBranch(const CBlock& block)
 
 int CMerkleTx::GetDepthInMainChainINTERNAL(const CBlockIndex* &pindexRet) const
 {
-    if (hashBlock == 0 || nIndex == -1)
+    if (hashBlock.IsNull() || nIndex == -1)
         return 0;
     AssertLockHeld(cs_main);
 
@@ -2365,9 +2556,9 @@ int CMerkleTx::GetBlocksToMaturity() const
 }
 
 
-bool CMerkleTx::AcceptToMemoryPool(bool fLimitFree, bool fRejectInsaneFee)
+bool CMerkleTx::AcceptToMemoryPool(bool fLimitFree, bool fRejectAbsurdFee)
 {
     CValidationState state;
-    return ::AcceptToMemoryPool(mempool, state, *this, fLimitFree, NULL, fRejectInsaneFee);
+    return ::AcceptToMemoryPool(mempool, state, *this, fLimitFree, NULL, fRejectAbsurdFee);
 }
 
diff --git a/src/wallet.h b/src/wallet.h
index 70d274c2d5..6ed87d1e68 100644
--- a/src/wallet.h
+++ b/src/wallet.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -30,6 +30,7 @@
  * Settings
  */
 extern CFeeRate payTxFee;
+extern CAmount maxTxFee;
 extern unsigned int nTxConfirmTarget;
 extern bool bSpendZeroConfChange;
 extern bool fSendFreeTransactions;
@@ -39,6 +40,10 @@ extern bool fPayAtLeastCustomFee;
 static const CAmount DEFAULT_TRANSACTION_FEE = 0;
 //! -paytxfee will warn if called with a higher fee than this amount (in satoshis) per KB
 static const CAmount nHighTransactionFeeWarning = 0.01 * COIN;
+//! -maxtxfee default
+static const CAmount DEFAULT_TRANSACTION_MAXFEE = 0.1 * COIN;
+//! -maxtxfee will warn if called with a higher fee than this amount (in satoshis)
+static const CAmount nHighTransactionMaxFeeWarning = 100 * nHighTransactionFeeWarning;
 //! Largest (in bytes) free transaction we're willing to create
 static const unsigned int MAX_FREE_TRANSACTION_CREATE_SIZE = 1000;
 
@@ -98,6 +103,329 @@ public:
     StringMap destdata;
 };
 
+
+typedef std::map<std::string, std::string> mapValue_t;
+
+
+static void ReadOrderPos(int64_t& nOrderPos, mapValue_t& mapValue)
+{
+    if (!mapValue.count("n"))
+    {
+        nOrderPos = -1; // TODO: calculate elsewhere
+        return;
+    }
+    nOrderPos = atoi64(mapValue["n"].c_str());
+}
+
+
+static void WriteOrderPos(const int64_t& nOrderPos, mapValue_t& mapValue)
+{
+    if (nOrderPos == -1)
+        return;
+    mapValue["n"] = i64tostr(nOrderPos);
+}
+
+struct COutputEntry
+{
+    CTxDestination destination;
+    CAmount amount;
+    int vout;
+};
+
+/** A transaction with a merkle branch linking it to the block chain. */
+class CMerkleTx : public CTransaction
+{
+private:
+    int GetDepthInMainChainINTERNAL(const CBlockIndex* &pindexRet) const;
+
+public:
+    uint256 hashBlock;
+    std::vector<uint256> vMerkleBranch;
+    int nIndex;
+
+    // memory only
+    mutable bool fMerkleVerified;
+
+
+    CMerkleTx()
+    {
+        Init();
+    }
+
+    CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
+    {
+        Init();
+    }
+
+    void Init()
+    {
+        hashBlock = uint256();
+        nIndex = -1;
+        fMerkleVerified = false;
+    }
+
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
+        READWRITE(*(CTransaction*)this);
+        nVersion = this->nVersion;
+        READWRITE(hashBlock);
+        READWRITE(vMerkleBranch);
+        READWRITE(nIndex);
+    }
+
+    int SetMerkleBranch(const CBlock& block);
+
+
+    /**
+     * Return depth of transaction in blockchain:
+     * -1  : not in blockchain, and not in memory pool (conflicted transaction)
+     *  0  : in memory pool, waiting to be included in a block
+     * >=1 : this many blocks deep in the main chain
+     */
+    int GetDepthInMainChain(const CBlockIndex* &pindexRet) const;
+    int GetDepthInMainChain() const { const CBlockIndex *pindexRet; return GetDepthInMainChain(pindexRet); }
+    bool IsInMainChain() const { const CBlockIndex *pindexRet; return GetDepthInMainChainINTERNAL(pindexRet) > 0; }
+    int GetBlocksToMaturity() const;
+    bool AcceptToMemoryPool(bool fLimitFree=true, bool fRejectAbsurdFee=true);
+};
+
+/** 
+ * A transaction with a bunch of additional info that only the owner cares about.
+ * It includes any unrecorded transactions needed to link it back to the block chain.
+ */
+class CWalletTx : public CMerkleTx
+{
+private:
+    const CWallet* pwallet;
+
+public:
+    mapValue_t mapValue;
+    std::vector<std::pair<std::string, std::string> > vOrderForm;
+    unsigned int fTimeReceivedIsTxTime;
+    unsigned int nTimeReceived; //! time received by this node
+    unsigned int nTimeSmart;
+    char fFromMe;
+    std::string strFromAccount;
+    int64_t nOrderPos; //! position in ordered transaction list
+
+    // memory only
+    mutable bool fDebitCached;
+    mutable bool fCreditCached;
+    mutable bool fImmatureCreditCached;
+    mutable bool fAvailableCreditCached;
+    mutable bool fWatchDebitCached;
+    mutable bool fWatchCreditCached;
+    mutable bool fImmatureWatchCreditCached;
+    mutable bool fAvailableWatchCreditCached;
+    mutable bool fChangeCached;
+    mutable CAmount nDebitCached;
+    mutable CAmount nCreditCached;
+    mutable CAmount nImmatureCreditCached;
+    mutable CAmount nAvailableCreditCached;
+    mutable CAmount nWatchDebitCached;
+    mutable CAmount nWatchCreditCached;
+    mutable CAmount nImmatureWatchCreditCached;
+    mutable CAmount nAvailableWatchCreditCached;
+    mutable CAmount nChangeCached;
+
+    CWalletTx()
+    {
+        Init(NULL);
+    }
+
+    CWalletTx(const CWallet* pwalletIn)
+    {
+        Init(pwalletIn);
+    }
+
+    CWalletTx(const CWallet* pwalletIn, const CMerkleTx& txIn) : CMerkleTx(txIn)
+    {
+        Init(pwalletIn);
+    }
+
+    CWalletTx(const CWallet* pwalletIn, const CTransaction& txIn) : CMerkleTx(txIn)
+    {
+        Init(pwalletIn);
+    }
+
+    void Init(const CWallet* pwalletIn)
+    {
+        pwallet = pwalletIn;
+        mapValue.clear();
+        vOrderForm.clear();
+        fTimeReceivedIsTxTime = false;
+        nTimeReceived = 0;
+        nTimeSmart = 0;
+        fFromMe = false;
+        strFromAccount.clear();
+        fDebitCached = false;
+        fCreditCached = false;
+        fImmatureCreditCached = false;
+        fAvailableCreditCached = false;
+        fWatchDebitCached = false;
+        fWatchCreditCached = false;
+        fImmatureWatchCreditCached = false;
+        fAvailableWatchCreditCached = false;
+        fChangeCached = false;
+        nDebitCached = 0;
+        nCreditCached = 0;
+        nImmatureCreditCached = 0;
+        nAvailableCreditCached = 0;
+        nWatchDebitCached = 0;
+        nWatchCreditCached = 0;
+        nAvailableWatchCreditCached = 0;
+        nImmatureWatchCreditCached = 0;
+        nChangeCached = 0;
+        nOrderPos = -1;
+    }
+
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
+        if (ser_action.ForRead())
+            Init(NULL);
+        char fSpent = false;
+
+        if (!ser_action.ForRead())
+        {
+            mapValue["fromaccount"] = strFromAccount;
+
+            WriteOrderPos(nOrderPos, mapValue);
+
+            if (nTimeSmart)
+                mapValue["timesmart"] = strprintf("%u", nTimeSmart);
+        }
+
+        READWRITE(*(CMerkleTx*)this);
+        std::vector<CMerkleTx> vUnused; //! Used to be vtxPrev
+        READWRITE(vUnused);
+        READWRITE(mapValue);
+        READWRITE(vOrderForm);
+        READWRITE(fTimeReceivedIsTxTime);
+        READWRITE(nTimeReceived);
+        READWRITE(fFromMe);
+        READWRITE(fSpent);
+
+        if (ser_action.ForRead())
+        {
+            strFromAccount = mapValue["fromaccount"];
+
+            ReadOrderPos(nOrderPos, mapValue);
+
+            nTimeSmart = mapValue.count("timesmart") ? (unsigned int)atoi64(mapValue["timesmart"]) : 0;
+        }
+
+        mapValue.erase("fromaccount");
+        mapValue.erase("version");
+        mapValue.erase("spent");
+        mapValue.erase("n");
+        mapValue.erase("timesmart");
+    }
+
+    //! make sure balances are recalculated
+    void MarkDirty()
+    {
+        fCreditCached = false;
+        fAvailableCreditCached = false;
+        fWatchDebitCached = false;
+        fWatchCreditCached = false;
+        fAvailableWatchCreditCached = false;
+        fImmatureWatchCreditCached = false;
+        fDebitCached = false;
+        fChangeCached = false;
+    }
+
+    void BindWallet(CWallet *pwalletIn)
+    {
+        pwallet = pwalletIn;
+        MarkDirty();
+    }
+
+    //! filter decides which addresses will count towards the debit
+    CAmount GetDebit(const isminefilter& filter) const;
+    CAmount GetCredit(const isminefilter& filter) const;
+    CAmount GetImmatureCredit(bool fUseCache=true) const;
+    CAmount GetAvailableCredit(bool fUseCache=true) const;
+    CAmount GetImmatureWatchOnlyCredit(const bool& fUseCache=true) const;
+    CAmount GetAvailableWatchOnlyCredit(const bool& fUseCache=true) const;
+    CAmount GetChange() const;
+
+    void GetAmounts(std::list<COutputEntry>& listReceived,
+                    std::list<COutputEntry>& listSent, CAmount& nFee, std::string& strSentAccount, const isminefilter& filter) const;
+
+    void GetAccountAmounts(const std::string& strAccount, CAmount& nReceived,
+                           CAmount& nSent, CAmount& nFee, const isminefilter& filter) const;
+
+    bool IsFromMe(const isminefilter& filter) const
+    {
+        return (GetDebit(filter) > 0);
+    }
+
+    bool IsTrusted() const;
+
+    bool WriteToDisk(CWalletDB *pwalletdb);
+
+    int64_t GetTxTime() const;
+    int GetRequestCount() const;
+
+    void RelayWalletTransaction();
+
+    std::set<uint256> GetConflicts() const;
+};
+
+
+
+
+class COutput
+{
+public:
+    const CWalletTx *tx;
+    int i;
+    int nDepth;
+    bool fSpendable;
+
+    COutput(const CWalletTx *txIn, int iIn, int nDepthIn, bool fSpendableIn)
+    {
+        tx = txIn; i = iIn; nDepth = nDepthIn; fSpendable = fSpendableIn;
+    }
+
+    std::string ToString() const;
+};
+
+
+
+
+/** Private key that includes an expiration date in case it never gets used. */
+class CWalletKey
+{
+public:
+    CPrivKey vchPrivKey;
+    int64_t nTimeCreated;
+    int64_t nTimeExpires;
+    std::string strComment;
+    //! todo: add something to note what created it (user, getnewaddress, change)
+    //!   maybe should have a map<string, string> property map
+
+    CWalletKey(int64_t nExpires=0);
+
+    ADD_SERIALIZE_METHODS;
+
+    template <typename Stream, typename Operation>
+    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
+        if (!(nType & SER_GETHASH))
+            READWRITE(nVersion);
+        READWRITE(vchPrivKey);
+        READWRITE(nTimeCreated);
+        READWRITE(nTimeExpires);
+        READWRITE(LIMITED_STRING(strComment, 65536));
+    }
+};
+
+
+
 /** 
  * A CWallet is an extension of a keystore, which also maintains a set of transactions and balances,
  * and provides the ability to create new transactions.
@@ -270,7 +598,7 @@ public:
     TxItems OrderedTxItems(std::list<CAccountingEntry>& acentries, std::string strAccount = "");
 
     void MarkDirty();
-    bool AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet=false);
+    bool AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet, CWalletDB* pwalletdb);
     void SyncTransaction(const CTransaction& tx, const CBlock* pblock);
     bool AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate);
     void EraseFromWallet(const uint256 &hash);
@@ -288,7 +616,6 @@ public:
     bool CreateTransaction(CScript scriptPubKey, const CAmount& nValue,
                            CWalletTx& wtxNew, CReserveKey& reservekey, CAmount& nFeeRet, std::string& strFailReason, const CCoinControl *coinControl = NULL);
     bool CommitTransaction(CWalletTx& wtxNew, CReserveKey& reservekey);
-    std::string SendMoney(const CTxDestination &address, CAmount nValue, CWalletTx& wtxNew);
 
     static CFeeRate minTxFee;
     static CAmount GetMinimumFee(unsigned int nTxBytes, unsigned int nConfirmTarget, const CTxMemPool& pool);
@@ -316,14 +643,14 @@ public:
     CAmount GetCredit(const CTxOut& txout, const isminefilter& filter) const
     {
         if (!MoneyRange(txout.nValue))
-            throw std::runtime_error("CWallet::GetCredit() : value out of range");
+            throw std::runtime_error("CWallet::GetCredit(): value out of range");
         return ((IsMine(txout) & filter) ? txout.nValue : 0);
     }
     bool IsChange(const CTxOut& txout) const;
     CAmount GetChange(const CTxOut& txout) const
     {
         if (!MoneyRange(txout.nValue))
-            throw std::runtime_error("CWallet::GetChange() : value out of range");
+            throw std::runtime_error("CWallet::GetChange(): value out of range");
         return (IsChange(txout) ? txout.nValue : 0);
     }
     bool IsMine(const CTransaction& tx) const
@@ -345,7 +672,7 @@ public:
         {
             nDebit += GetDebit(txin, filter);
             if (!MoneyRange(nDebit))
-                throw std::runtime_error("CWallet::GetDebit() : value out of range");
+                throw std::runtime_error("CWallet::GetDebit(): value out of range");
         }
         return nDebit;
     }
@@ -356,7 +683,7 @@ public:
         {
             nCredit += GetCredit(txout, filter);
             if (!MoneyRange(nCredit))
-                throw std::runtime_error("CWallet::GetCredit() : value out of range");
+                throw std::runtime_error("CWallet::GetCredit(): value out of range");
         }
         return nCredit;
     }
@@ -367,7 +694,7 @@ public:
         {
             nChange += GetChange(txout);
             if (!MoneyRange(nChange))
-                throw std::runtime_error("CWallet::GetChange() : value out of range");
+                throw std::runtime_error("CWallet::GetChange(): value out of range");
         }
         return nChange;
     }
@@ -460,508 +787,6 @@ public:
 };
 
 
-typedef std::map<std::string, std::string> mapValue_t;
-
-
-static void ReadOrderPos(int64_t& nOrderPos, mapValue_t& mapValue)
-{
-    if (!mapValue.count("n"))
-    {
-        nOrderPos = -1; // TODO: calculate elsewhere
-        return;
-    }
-    nOrderPos = atoi64(mapValue["n"].c_str());
-}
-
-
-static void WriteOrderPos(const int64_t& nOrderPos, mapValue_t& mapValue)
-{
-    if (nOrderPos == -1)
-        return;
-    mapValue["n"] = i64tostr(nOrderPos);
-}
-
-struct COutputEntry
-{
-    CTxDestination destination;
-    CAmount amount;
-    int vout;
-};
-
-/** A transaction with a merkle branch linking it to the block chain. */
-class CMerkleTx : public CTransaction
-{
-private:
-    int GetDepthInMainChainINTERNAL(const CBlockIndex* &pindexRet) const;
-
-public:
-    uint256 hashBlock;
-    std::vector<uint256> vMerkleBranch;
-    int nIndex;
-
-    // memory only
-    mutable bool fMerkleVerified;
-
-
-    CMerkleTx()
-    {
-        Init();
-    }
-
-    CMerkleTx(const CTransaction& txIn) : CTransaction(txIn)
-    {
-        Init();
-    }
-
-    void Init()
-    {
-        hashBlock = 0;
-        nIndex = -1;
-        fMerkleVerified = false;
-    }
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        READWRITE(*(CTransaction*)this);
-        nVersion = this->nVersion;
-        READWRITE(hashBlock);
-        READWRITE(vMerkleBranch);
-        READWRITE(nIndex);
-    }
-
-    int SetMerkleBranch(const CBlock& block);
-
-
-    /**
-     * Return depth of transaction in blockchain:
-     * -1  : not in blockchain, and not in memory pool (conflicted transaction)
-     *  0  : in memory pool, waiting to be included in a block
-     * >=1 : this many blocks deep in the main chain
-     */
-    int GetDepthInMainChain(const CBlockIndex* &pindexRet) const;
-    int GetDepthInMainChain() const { const CBlockIndex *pindexRet; return GetDepthInMainChain(pindexRet); }
-    bool IsInMainChain() const { const CBlockIndex *pindexRet; return GetDepthInMainChainINTERNAL(pindexRet) > 0; }
-    int GetBlocksToMaturity() const;
-    bool AcceptToMemoryPool(bool fLimitFree=true, bool fRejectInsaneFee=true);
-};
-
-/** 
- * A transaction with a bunch of additional info that only the owner cares about.
- * It includes any unrecorded transactions needed to link it back to the block chain.
- */
-class CWalletTx : public CMerkleTx
-{
-private:
-    const CWallet* pwallet;
-
-public:
-    mapValue_t mapValue;
-    std::vector<std::pair<std::string, std::string> > vOrderForm;
-    unsigned int fTimeReceivedIsTxTime;
-    unsigned int nTimeReceived; //! time received by this node
-    unsigned int nTimeSmart;
-    char fFromMe;
-    std::string strFromAccount;
-    int64_t nOrderPos; //! position in ordered transaction list
-
-    // memory only
-    mutable bool fDebitCached;
-    mutable bool fCreditCached;
-    mutable bool fImmatureCreditCached;
-    mutable bool fAvailableCreditCached;
-    mutable bool fWatchDebitCached;
-    mutable bool fWatchCreditCached;
-    mutable bool fImmatureWatchCreditCached;
-    mutable bool fAvailableWatchCreditCached;
-    mutable bool fChangeCached;
-    mutable CAmount nDebitCached;
-    mutable CAmount nCreditCached;
-    mutable CAmount nImmatureCreditCached;
-    mutable CAmount nAvailableCreditCached;
-    mutable CAmount nWatchDebitCached;
-    mutable CAmount nWatchCreditCached;
-    mutable CAmount nImmatureWatchCreditCached;
-    mutable CAmount nAvailableWatchCreditCached;
-    mutable CAmount nChangeCached;
-
-    CWalletTx()
-    {
-        Init(NULL);
-    }
-
-    CWalletTx(const CWallet* pwalletIn)
-    {
-        Init(pwalletIn);
-    }
-
-    CWalletTx(const CWallet* pwalletIn, const CMerkleTx& txIn) : CMerkleTx(txIn)
-    {
-        Init(pwalletIn);
-    }
-
-    CWalletTx(const CWallet* pwalletIn, const CTransaction& txIn) : CMerkleTx(txIn)
-    {
-        Init(pwalletIn);
-    }
-
-    void Init(const CWallet* pwalletIn)
-    {
-        pwallet = pwalletIn;
-        mapValue.clear();
-        vOrderForm.clear();
-        fTimeReceivedIsTxTime = false;
-        nTimeReceived = 0;
-        nTimeSmart = 0;
-        fFromMe = false;
-        strFromAccount.clear();
-        fDebitCached = false;
-        fCreditCached = false;
-        fImmatureCreditCached = false;
-        fAvailableCreditCached = false;
-        fWatchDebitCached = false;
-        fWatchCreditCached = false;
-        fImmatureWatchCreditCached = false;
-        fAvailableWatchCreditCached = false;
-        fChangeCached = false;
-        nDebitCached = 0;
-        nCreditCached = 0;
-        nImmatureCreditCached = 0;
-        nAvailableCreditCached = 0;
-        nWatchDebitCached = 0;
-        nWatchCreditCached = 0;
-        nAvailableWatchCreditCached = 0;
-        nImmatureWatchCreditCached = 0;
-        nChangeCached = 0;
-        nOrderPos = -1;
-    }
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        if (ser_action.ForRead())
-            Init(NULL);
-        char fSpent = false;
-
-        if (!ser_action.ForRead())
-        {
-            mapValue["fromaccount"] = strFromAccount;
-
-            WriteOrderPos(nOrderPos, mapValue);
-
-            if (nTimeSmart)
-                mapValue["timesmart"] = strprintf("%u", nTimeSmart);
-        }
-
-        READWRITE(*(CMerkleTx*)this);
-        std::vector<CMerkleTx> vUnused; //! Used to be vtxPrev
-        READWRITE(vUnused);
-        READWRITE(mapValue);
-        READWRITE(vOrderForm);
-        READWRITE(fTimeReceivedIsTxTime);
-        READWRITE(nTimeReceived);
-        READWRITE(fFromMe);
-        READWRITE(fSpent);
-
-        if (ser_action.ForRead())
-        {
-            strFromAccount = mapValue["fromaccount"];
-
-            ReadOrderPos(nOrderPos, mapValue);
-
-            nTimeSmart = mapValue.count("timesmart") ? (unsigned int)atoi64(mapValue["timesmart"]) : 0;
-        }
-
-        mapValue.erase("fromaccount");
-        mapValue.erase("version");
-        mapValue.erase("spent");
-        mapValue.erase("n");
-        mapValue.erase("timesmart");
-    }
-
-    //! make sure balances are recalculated
-    void MarkDirty()
-    {
-        fCreditCached = false;
-        fAvailableCreditCached = false;
-        fWatchDebitCached = false;
-        fWatchCreditCached = false;
-        fAvailableWatchCreditCached = false;
-        fImmatureWatchCreditCached = false;
-        fDebitCached = false;
-        fChangeCached = false;
-    }
-
-    void BindWallet(CWallet *pwalletIn)
-    {
-        pwallet = pwalletIn;
-        MarkDirty();
-    }
-
-    //! filter decides which addresses will count towards the debit
-    CAmount GetDebit(const isminefilter& filter) const
-    {
-        if (vin.empty())
-            return 0;
-
-        CAmount debit = 0;
-        if(filter & ISMINE_SPENDABLE)
-        {
-            if (fDebitCached)
-                debit += nDebitCached;
-            else
-            {
-                nDebitCached = pwallet->GetDebit(*this, ISMINE_SPENDABLE);
-                fDebitCached = true;
-                debit += nDebitCached;
-            }
-        }
-        if(filter & ISMINE_WATCH_ONLY)
-        {
-            if(fWatchDebitCached)
-                debit += nWatchDebitCached;
-            else
-            {
-                nWatchDebitCached = pwallet->GetDebit(*this, ISMINE_WATCH_ONLY);
-                fWatchDebitCached = true;
-                debit += nWatchDebitCached;
-            }
-        }
-        return debit;
-    }
-
-    CAmount GetCredit(const isminefilter& filter) const
-    {
-        // Must wait until coinbase is safely deep enough in the chain before valuing it
-        if (IsCoinBase() && GetBlocksToMaturity() > 0)
-            return 0;
-
-        int64_t credit = 0;
-        if (filter & ISMINE_SPENDABLE)
-        {
-            // GetBalance can assume transactions in mapWallet won't change
-            if (fCreditCached)
-                credit += nCreditCached;
-            else
-            {
-                nCreditCached = pwallet->GetCredit(*this, ISMINE_SPENDABLE);
-                fCreditCached = true;
-                credit += nCreditCached;
-            }
-        }
-        if (filter & ISMINE_WATCH_ONLY)
-        {
-            if (fWatchCreditCached)
-                credit += nWatchCreditCached;
-            else
-            {
-                nWatchCreditCached = pwallet->GetCredit(*this, ISMINE_WATCH_ONLY);
-                fWatchCreditCached = true;
-                credit += nWatchCreditCached;
-            }
-        }
-        return credit;
-    }
-
-    CAmount GetImmatureCredit(bool fUseCache=true) const
-    {
-        if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
-        {
-            if (fUseCache && fImmatureCreditCached)
-                return nImmatureCreditCached;
-            nImmatureCreditCached = pwallet->GetCredit(*this, ISMINE_SPENDABLE);
-            fImmatureCreditCached = true;
-            return nImmatureCreditCached;
-        }
-
-        return 0;
-    }
-
-    CAmount GetAvailableCredit(bool fUseCache=true) const
-    {
-        if (pwallet == 0)
-            return 0;
-
-        // Must wait until coinbase is safely deep enough in the chain before valuing it
-        if (IsCoinBase() && GetBlocksToMaturity() > 0)
-            return 0;
-
-        if (fUseCache && fAvailableCreditCached)
-            return nAvailableCreditCached;
-
-        CAmount nCredit = 0;
-        uint256 hashTx = GetHash();
-        for (unsigned int i = 0; i < vout.size(); i++)
-        {
-            if (!pwallet->IsSpent(hashTx, i))
-            {
-                const CTxOut &txout = vout[i];
-                nCredit += pwallet->GetCredit(txout, ISMINE_SPENDABLE);
-                if (!MoneyRange(nCredit))
-                    throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
-            }
-        }
-
-        nAvailableCreditCached = nCredit;
-        fAvailableCreditCached = true;
-        return nCredit;
-    }
-
-    CAmount GetImmatureWatchOnlyCredit(const bool& fUseCache=true) const
-    {
-        if (IsCoinBase() && GetBlocksToMaturity() > 0 && IsInMainChain())
-        {
-            if (fUseCache && fImmatureWatchCreditCached)
-                return nImmatureWatchCreditCached;
-            nImmatureWatchCreditCached = pwallet->GetCredit(*this, ISMINE_WATCH_ONLY);
-            fImmatureWatchCreditCached = true;
-            return nImmatureWatchCreditCached;
-        }
-
-        return 0;
-    }
-
-    CAmount GetAvailableWatchOnlyCredit(const bool& fUseCache=true) const
-    {
-        if (pwallet == 0)
-            return 0;
-
-        // Must wait until coinbase is safely deep enough in the chain before valuing it
-        if (IsCoinBase() && GetBlocksToMaturity() > 0)
-            return 0;
-
-        if (fUseCache && fAvailableWatchCreditCached)
-            return nAvailableWatchCreditCached;
-
-        CAmount nCredit = 0;
-        for (unsigned int i = 0; i < vout.size(); i++)
-        {
-            if (!pwallet->IsSpent(GetHash(), i))
-            {
-                const CTxOut &txout = vout[i];
-                nCredit += pwallet->GetCredit(txout, ISMINE_WATCH_ONLY);
-                if (!MoneyRange(nCredit))
-                    throw std::runtime_error("CWalletTx::GetAvailableCredit() : value out of range");
-            }
-        }
-
-        nAvailableWatchCreditCached = nCredit;
-        fAvailableWatchCreditCached = true;
-        return nCredit;
-    }
-
-    CAmount GetChange() const
-    {
-        if (fChangeCached)
-            return nChangeCached;
-        nChangeCached = pwallet->GetChange(*this);
-        fChangeCached = true;
-        return nChangeCached;
-    }
-
-    void GetAmounts(std::list<COutputEntry>& listReceived,
-                    std::list<COutputEntry>& listSent, CAmount& nFee, std::string& strSentAccount, const isminefilter& filter) const;
-
-    void GetAccountAmounts(const std::string& strAccount, CAmount& nReceived,
-                           CAmount& nSent, CAmount& nFee, const isminefilter& filter) const;
-
-    bool IsFromMe(const isminefilter& filter) const
-    {
-        return (GetDebit(filter) > 0);
-    }
-
-    bool IsTrusted() const
-    {
-        // Quick answer in most cases
-        if (!IsFinalTx(*this))
-            return false;
-        int nDepth = GetDepthInMainChain();
-        if (nDepth >= 1)
-            return true;
-        if (nDepth < 0)
-            return false;
-        if (!bSpendZeroConfChange || !IsFromMe(ISMINE_ALL)) // using wtx's cached debit
-            return false;
-
-        // Trusted if all inputs are from us and are in the mempool:
-        BOOST_FOREACH(const CTxIn& txin, vin)
-        {
-            // Transactions not sent by us: not trusted
-            const CWalletTx* parent = pwallet->GetWalletTx(txin.prevout.hash);
-            if (parent == NULL)
-                return false;
-            const CTxOut& parentOut = parent->vout[txin.prevout.n];
-            if (pwallet->IsMine(parentOut) != ISMINE_SPENDABLE)
-                return false;
-        }
-        return true;
-    }
-
-    bool WriteToDisk();
-
-    int64_t GetTxTime() const;
-    int GetRequestCount() const;
-
-    void RelayWalletTransaction();
-
-    std::set<uint256> GetConflicts() const;
-};
-
-
-
-
-class COutput
-{
-public:
-    const CWalletTx *tx;
-    int i;
-    int nDepth;
-    bool fSpendable;
-
-    COutput(const CWalletTx *txIn, int iIn, int nDepthIn, bool fSpendableIn)
-    {
-        tx = txIn; i = iIn; nDepth = nDepthIn; fSpendable = fSpendableIn;
-    }
-
-    std::string ToString() const;
-};
-
-
-
-
-/** Private key that includes an expiration date in case it never gets used. */
-class CWalletKey
-{
-public:
-    CPrivKey vchPrivKey;
-    int64_t nTimeCreated;
-    int64_t nTimeExpires;
-    std::string strComment;
-    //! todo: add something to note what created it (user, getnewaddress, change)
-    //!   maybe should have a map<string, string> property map
-
-    CWalletKey(int64_t nExpires=0);
-
-    ADD_SERIALIZE_METHODS;
-
-    template <typename Stream, typename Operation>
-    inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        if (!(nType & SER_GETHASH))
-            READWRITE(nVersion);
-        READWRITE(vchPrivKey);
-        READWRITE(nTimeCreated);
-        READWRITE(nTimeExpires);
-        READWRITE(LIMITED_STRING(strComment, 65536));
-    }
-};
-
-
-
-
-
-
 /** 
  * Account information.
  * Stored in wallet with key "acc"+string account name.
diff --git a/src/wallet_ismine.cpp b/src/wallet_ismine.cpp
index 05dc40aaee..5482348e35 100644
--- a/src/wallet_ismine.cpp
+++ b/src/wallet_ismine.cpp
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
@@ -74,7 +74,7 @@ isminetype IsMine(const CKeyStore &keystore, const CScript& scriptPubKey)
     case TX_MULTISIG:
     {
         // Only consider transactions "mine" if we own ALL the
-        // keys involved. multi-signature transactions that are
+        // keys involved. Multi-signature transactions that are
         // partially owned (somebody else has a key that can spend
         // them) enable spend-out-from-under-you attacks, especially
         // in shared-wallet situations.
diff --git a/src/wallet_ismine.h b/src/wallet_ismine.h
index 5f0c0c1a01..6293df8b10 100644
--- a/src/wallet_ismine.h
+++ b/src/wallet_ismine.h
@@ -1,5 +1,5 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
+// Copyright (c) 2009-2014 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
diff --git a/src/walletdb.cpp b/src/walletdb.cpp
index ffddd8106b..b2daf036ff 100644
--- a/src/walletdb.cpp
+++ b/src/walletdb.cpp
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2014 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2014 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include "walletdb.h"
@@ -18,7 +18,6 @@
 #include <boost/scoped_ptr.hpp>
 #include <boost/thread.hpp>
 
-using namespace boost;
 using namespace std;
 
 static uint64_t nAccountingEntryNumber = 0;
@@ -211,7 +210,7 @@ void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountin
 
     Dbc* pcursor = GetCursor();
     if (!pcursor)
-        throw runtime_error("CWalletDB::ListAccountCreditDebit() : cannot create DB cursor");
+        throw runtime_error("CWalletDB::ListAccountCreditDebit(): cannot create DB cursor");
     unsigned int fFlags = DB_SET_RANGE;
     while (true)
     {
@@ -227,7 +226,7 @@ void CWalletDB::ListAccountCreditDebit(const string& strAccount, list<CAccountin
         else if (ret != 0)
         {
             pcursor->close();
-            throw runtime_error("CWalletDB::ListAccountCreditDebit() : error scanning DB");
+            throw runtime_error("CWalletDB::ListAccountCreditDebit(): error scanning DB");
         }
 
         // Unserialize
@@ -396,7 +395,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
             if (wtx.nOrderPos == -1)
                 wss.fAnyUnordered = true;
 
-            pwallet->AddToWallet(wtx, true);
+            pwallet->AddToWallet(wtx, true, NULL);
         }
         else if (strType == "acentry")
         {
@@ -439,7 +438,7 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
             }
             CKey key;
             CPrivKey pkey;
-            uint256 hash = 0;
+            uint256 hash;
 
             if (strType == "key")
             {
@@ -460,11 +459,11 @@ ReadKeyValue(CWallet* pwallet, CDataStream& ssKey, CDataStream& ssValue,
             {
                 ssValue >> hash;
             }
-            catch(...){}
+            catch (...) {}
 
             bool fSkipCheck = false;
 
-            if (hash != 0)
+            if (!hash.IsNull())
             {
                 // hash pubkey/privkey to accelerate wallet load
                 std::vector<unsigned char> vchKey;
@@ -664,7 +663,7 @@ DBErrors CWalletDB::LoadWallet(CWallet* pwallet)
         }
         pcursor->close();
     }
-    catch (boost::thread_interrupted) {
+    catch (const boost::thread_interrupted&) {
         throw;
     }
     catch (...) {
@@ -757,7 +756,7 @@ DBErrors CWalletDB::FindWalletTx(CWallet* pwallet, vector<uint256>& vTxHash, vec
         }
         pcursor->close();
     }
-    catch (boost::thread_interrupted) {
+    catch (const boost::thread_interrupted&) {
         throw;
     }
     catch (...) {
@@ -865,20 +864,20 @@ bool BackupWallet(const CWallet& wallet, const string& strDest)
                 bitdb.mapFileUseCount.erase(wallet.strWalletFile);
 
                 // Copy wallet.dat
-                filesystem::path pathSrc = GetDataDir() / wallet.strWalletFile;
-                filesystem::path pathDest(strDest);
-                if (filesystem::is_directory(pathDest))
+                boost::filesystem::path pathSrc = GetDataDir() / wallet.strWalletFile;
+                boost::filesystem::path pathDest(strDest);
+                if (boost::filesystem::is_directory(pathDest))
                     pathDest /= wallet.strWalletFile;
 
                 try {
 #if BOOST_VERSION >= 104000
-                    filesystem::copy_file(pathSrc, pathDest, filesystem::copy_option::overwrite_if_exists);
+                    boost::filesystem::copy_file(pathSrc, pathDest, boost::filesystem::copy_option::overwrite_if_exists);
 #else
-                    filesystem::copy_file(pathSrc, pathDest);
+                    boost::filesystem::copy_file(pathSrc, pathDest);
 #endif
                     LogPrintf("copied wallet.dat to %s\n", pathDest.string());
                     return true;
-                } catch(const filesystem::filesystem_error &e) {
+                } catch (const boost::filesystem::filesystem_error& e) {
                     LogPrintf("error copying wallet.dat to %s - %s\n", pathDest.string(), e.what());
                     return false;
                 }
diff --git a/src/walletdb.h b/src/walletdb.h
index 7ff41c7c8d..2627ef71a6 100644
--- a/src/walletdb.h
+++ b/src/walletdb.h
@@ -1,6 +1,6 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
-// Copyright (c) 2009-2013 The Bitcoin developers
-// Distributed under the MIT/X11 software license, see the accompanying
+// Copyright (c) 2009-2013 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_WALLETDB_H
@@ -76,7 +76,7 @@ public:
 class CWalletDB : public CDB
 {
 public:
-    CWalletDB(const std::string& strFilename, const char* pszMode = "r+") : CDB(strFilename, pszMode)
+    CWalletDB(const std::string& strFilename, const char* pszMode = "r+", bool fFlushOnClose = true) : CDB(strFilename, pszMode, fFlushOnClose)
     {
     }