// Copyright (c) 2010 Satoshi Nakamoto // Copyright (c) 2009-2014 The Bitcoin developers // Distributed under the MIT/X11 software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "chainparams.h" #include "random.h" #include "util.h" #include <assert.h> #include <boost/assign/list_of.hpp> using namespace std; using namespace boost::assign; struct SeedSpec6 { uint8_t addr[16]; uint16_t port; }; #include "chainparamsseeds.h" // // Main network // // Convert the pnSeeds6 array into usable address objects. static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data, unsigned int count) { // It'll only connect to one or two seed nodes because once it connects, // it'll get a pile of addresses with newer timestamps. // Seed nodes are given a random 'last seen time' of between one and two // weeks ago. const int64_t nOneWeek = 7*24*60*60; for (unsigned int i = 0; i < count; i++) { struct in6_addr ip; memcpy(&ip, data[i].addr, sizeof(ip)); CAddress addr(CService(ip, data[i].port)); addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek; vSeedsOut.push_back(addr); } } 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. // The characters are rarely used upper ASCII, not valid as UTF-8, and produce // a large 4-byte int at any alignment. pchMessageStart[0] = 0xf9; pchMessageStart[1] = 0xbe; pchMessageStart[2] = 0xb4; pchMessageStart[3] = 0xd9; vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284"); nDefaultPort = 8333; bnProofOfWorkLimit = ~uint256(0) >> 32; nSubsidyHalvingInterval = 210000; nEnforceBlockUpgradeMajority = 750; nRejectBlockOutdatedMajority = 950; nToCheckBlockUpgradeMajority = 1000; nMinerThreads = 0; nTargetTimespan = 14 * 24 * 60 * 60; // two weeks nTargetSpacing = 10 * 60; // Build the genesis block. Note that the output of the genesis coinbase cannot // be spent as it did not originally exist in the database. // // CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1) // CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0) // CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73) // CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B) // vMerkleTree: 4a5e1e const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks"; CMutableTransaction txNew; txNew.vin.resize(1); txNew.vout.resize(1); txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp)); txNew.vout[0].nValue = 50 * COIN; txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG; genesis.vtx.push_back(txNew); genesis.hashPrevBlock = 0; genesis.hashMerkleRoot = genesis.BuildMerkleTree(); genesis.nVersion = 1; genesis.nTime = 1231006505; genesis.nBits = 0x1d00ffff; genesis.nNonce = 2083236893; hashGenesisBlock = genesis.GetHash(); assert(hashGenesisBlock == uint256("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")); assert(genesis.hashMerkleRoot == uint256("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("open-nodes.org", "seeds.bitcoin.open-nodes.org")); 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); convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main)); fRequireRPCPassword = true; fMiningRequiresPeers = true; fDefaultCheckMemPool = false; fAllowMinDifficultyBlocks = false; fRequireStandard = true; fMineBlocksOnDemand = false; } }; static CMainParams mainParams; // // Testnet (v3) // class CTestNetParams : public CMainParams { public: CTestNetParams() { networkID = CBaseChainParams::TESTNET; strNetworkID = "test"; // The message start string is designed to be unlikely to occur in normal data. // The characters are rarely used upper ASCII, not valid as UTF-8, and produce // a large 4-byte int at any alignment. pchMessageStart[0] = 0x0b; pchMessageStart[1] = 0x11; pchMessageStart[2] = 0x09; pchMessageStart[3] = 0x07; vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a"); nDefaultPort = 18333; nEnforceBlockUpgradeMajority = 51; nRejectBlockOutdatedMajority = 75; nToCheckBlockUpgradeMajority = 100; nMinerThreads = 0; nTargetTimespan = 14 * 24 * 60 * 60; // two weeks nTargetSpacing = 10 * 60; // Modify the testnet genesis block so the timestamp is valid for a later start. genesis.nTime = 1296688602; genesis.nNonce = 414098458; hashGenesisBlock = genesis.GetHash(); assert(hashGenesisBlock == uint256("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943")); vFixedSeeds.clear(); vSeeds.clear(); vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me")); vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org")); vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me")); 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); convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test)); fRequireRPCPassword = true; fMiningRequiresPeers = true; fDefaultCheckMemPool = false; fAllowMinDifficultyBlocks = true; fRequireStandard = false; fMineBlocksOnDemand = false; } }; static CTestNetParams testNetParams; // // Regression test // class CRegTestParams : public CTestNetParams { public: CRegTestParams() { networkID = CBaseChainParams::REGTEST; strNetworkID = "regtest"; pchMessageStart[0] = 0xfa; pchMessageStart[1] = 0xbf; pchMessageStart[2] = 0xb5; pchMessageStart[3] = 0xda; nSubsidyHalvingInterval = 150; nEnforceBlockUpgradeMajority = 750; nRejectBlockOutdatedMajority = 950; nToCheckBlockUpgradeMajority = 1000; nMinerThreads = 1; nTargetTimespan = 14 * 24 * 60 * 60; // two weeks nTargetSpacing = 10 * 60; bnProofOfWorkLimit = ~uint256(0) >> 1; genesis.nTime = 1296688602; genesis.nBits = 0x207fffff; genesis.nNonce = 2; hashGenesisBlock = genesis.GetHash(); nDefaultPort = 18444; assert(hashGenesisBlock == uint256("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")); vSeeds.clear(); // Regtest mode doesn't have any DNS seeds. fRequireRPCPassword = false; fMiningRequiresPeers = false; fDefaultCheckMemPool = true; fAllowMinDifficultyBlocks = true; fRequireStandard = false; fMineBlocksOnDemand = true; } }; static CRegTestParams regTestParams; static CChainParams *pCurrentParams = 0; const CChainParams &Params() { assert(pCurrentParams); return *pCurrentParams; } void SelectParams(CBaseChainParams::Network network) { SelectBaseParams(network); switch (network) { case CBaseChainParams::MAIN: pCurrentParams = &mainParams; break; case CBaseChainParams::TESTNET: pCurrentParams = &testNetParams; break; case CBaseChainParams::REGTEST: pCurrentParams = ®TestParams; break; default: assert(false && "Unimplemented network"); return; } } bool SelectParamsFromCommandLine() { if (!SelectBaseParamsFromCommandLine()) return false; SelectParams(BaseParams().NetworkID()); return true; }