1 files changed, 65 insertions, 0 deletions
diff --git a/src/checkpoints.cpp b/src/checkpoints.cpp
new file mode 100644
index 0000000000..f5ce053870
--- /dev/null
+++ b/src/checkpoints.cpp
@@ -0,0 +1,65 @@
+// Copyright (c) 2009-2012 The Bitcoin developers
+// Distributed under the MIT/X11 software license, see the accompanying
+// file license.txt or http://www.opensource.org/licenses/mit-license.php.
+
+#include <boost/assign/list_of.hpp> // for 'map_list_of()'
+#include <boost/foreach.hpp>
+
+#include "headers.h"
+#include "checkpoints.h"
+
+namespace Checkpoints
+{
+    typedef std::map<int, uint256> MapCheckpoints;
+
+    //
+    // What makes a good checkpoint block?
+    // + Is surrounded by blocks with reasonable timestamps
+    //   (no blocks before with a timestamp after, none after with
+    //    timestamp before)
+    // + Contains no strange transactions
+    //
+    static MapCheckpoints mapCheckpoints =
+        boost::assign::map_list_of
+        ( 11111, uint256("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
+        ( 33333, uint256("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
+        ( 68555, uint256("0x00000000001e1b4903550a0b96e9a9405c8a95f387162e4944e8d9fbe501cd6a"))
+        ( 70567, uint256("0x00000000006a49b14bcf27462068f1264c961f11fa2e0eddd2be0791e1d4124a"))
+        ( 74000, uint256("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
+        (105000, uint256("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
+        (118000, uint256("0x000000000000774a7f8a7a12dc906ddb9e17e75d684f15e00f8767f9e8f36553"))
+        (134444, uint256("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
+        (140700, uint256("0x000000000000033b512028abb90e1626d8b346fd0ed598ac0a3c371138dce2bd"))
+        (168000, uint256("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
+        ;
+
+    bool CheckBlock(int nHeight, const uint256& hash)
+    {
+        if (fTestNet) return true; // Testnet has no checkpoints
+
+        MapCheckpoints::const_iterator i = mapCheckpoints.find(nHeight);
+        if (i == mapCheckpoints.end()) return true;
+        return hash == i->second;
+    }
+
+    int GetTotalBlocksEstimate()
+    {
+        if (fTestNet) return 0;
+
+        return mapCheckpoints.rbegin()->first;
+    }
+
+    CBlockIndex* GetLastCheckpoint(const std::map<uint256, CBlockIndex*>& mapBlockIndex)
+    {
+        if (fTestNet) return NULL;
+
+        BOOST_REVERSE_FOREACH(const MapCheckpoints::value_type& i, mapCheckpoints)
+        {
+            const uint256& hash = i.second;
+            std::map<uint256, CBlockIndex*>::const_iterator t = mapBlockIndex.find(hash);
+            if (t != mapBlockIndex.end())
+                return t->second;
+        }
+        return NULL;
+    }
+}