比特币开发之修改创世块及难度
我就不一个个解释了,把改动的代码贴上来,大家自己去跟比特币源码对比:
#include "chainparams.h" #include "consensus/merkle.h" #include "tinyformat.h" #include "util.h" #include "utilstrencodings.h" #include <assert.h> #include <boost/assign/list_of.hpp> #include "chainparamsseeds.h" static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward) { CMutableTransaction txNew; txNew.nVersion = 1; txNew.vin.resize(1); txNew.vout.resize(1); txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp)); txNew.vout[0].nValue = genesisReward; txNew.vout[0].scriptPubKey = genesisOutputScript; CBlock genesis; genesis.nTime = nTime; genesis.nBits = nBits; genesis.nNonce = nNonce; genesis.nVersion = nVersion; genesis.vtx.push_back(txNew); genesis.hashPrevBlock.SetNull(); genesis.hashMerkleRoot = BlockMerkleRoot(genesis); return genesis; } /** * Build the genesis block. Note that the output of its generation * transaction cannot be spent since 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 */ static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward) { const char* pszTimestamp = "NetCoin 30/Jan/2017 Hello World"; const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG; return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward); } /** * Main network */ /** * 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 */ class CMainParams : public CChainParams { public: CMainParams() { strNetworkID = "main"; consensus.nSubsidyHalvingInterval = 210000; consensus.nMajorityEnforceBlockUpgrade = 51; consensus.nMajorityRejectBlockOutdated = 75; consensus.nMajorityWindow = 100; consensus.BIP34Height = 0; consensus.BIP34Hash = uint256S("0x0"); consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks consensus.nPowTargetSpacing = 10 * 60; consensus.fPowAllowMinDifficultyBlocks = false; consensus.fPowNoRetargeting = false; consensus.nRuleChangeActivationThreshold = 1916; // 95% of 2016 consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing /* consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008 consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008 // Deployment of BIP68, BIP112, and BIP113. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1462060800; // May 1st, 2016 consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017 */ /** * 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 32-bit integer with any alignment. */ pchMessageStart[0] = 0xca; pchMessageStart[1] = 0x7c; pchMessageStart[2] = 0x01; pchMessageStart[3] = 0x01; vAlertPubKey = ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f"); nDefaultPort = 8933; nMaxTipAge = 24 * 60 * 60; nPruneAfterHeight = 100000; genesis = CreateGenesisBlock(1517304703, 1544593543, 0x1d00ffff, 1, 50 * COIN); consensus.hashGenesisBlock = genesis.GetHash(); assert(consensus.hashGenesisBlock == uint256S("0x0000000d1b8f2e46494af945cf9af1cccb10b45bbb40b8eab5bf1ca83147d5d")); assert(genesis.hashMerkleRoot == uint256S("0xe69e1690fc9fd29ba2fd2216fe6cb3ed618b5639129c6810919ed81c062df")); vSeeds.push_back(CDNSSeedData("netcoin.netbnet.com", "seed.netbnet.com")); 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> >(); vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main)); fMiningRequiresPeers = true; fDefaultConsistencyChecks = false; fRequireStandard = true; fMineBlocksOnDemand = false; fTestnetToBeDeprecatedFieldRPC = false; /* checkpointData = (CCheckpointData) { boost::assign::map_list_of ( 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")), 1397080064, // * UNIX timestamp of last checkpoint block 36544669, // * total number of transactions between genesis and last checkpoint // (the tx=... number in the SetBestChain debug.log lines) 60000.0 // * estimated number of transactions per day after checkpoint }; */ } };
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