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371 lines
18 KiB
371 lines
18 KiB
// Copyright (c) 2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2016 The Bitcoin Core developers |
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// Distributed under the MIT software license, see the accompanying |
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// file COPYING or http://www.opensource.org/licenses/mit-license.php. |
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#include "chainparams.h" |
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#include "consensus/merkle.h" |
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#include "tinyformat.h" |
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#include "util.h" |
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#include "utilstrencodings.h" |
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#include <assert.h> |
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#include "chainparamsseeds.h" |
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static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward) |
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{ |
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CMutableTransaction txNew; |
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txNew.nVersion = 1; |
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txNew.vin.resize(1); |
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txNew.vout.resize(1); |
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txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp)); |
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txNew.vout[0].nValue = genesisReward; |
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txNew.vout[0].scriptPubKey = genesisOutputScript; |
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CBlock genesis; |
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genesis.nTime = nTime; |
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genesis.nBits = nBits; |
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genesis.nNonce = nNonce; |
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genesis.nVersion = nVersion; |
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genesis.vtx.push_back(MakeTransactionRef(std::move(txNew))); |
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genesis.hashPrevBlock.SetNull(); |
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genesis.hashMerkleRoot = BlockMerkleRoot(genesis); |
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return genesis; |
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} |
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/** |
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* Build the genesis block. Note that the output of its generation |
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* transaction cannot be spent since it did not originally exist in the |
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* database. |
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* |
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* CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1) |
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* CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0) |
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* CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73) |
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* CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B) |
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* vMerkleTree: 4a5e1e |
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*/ |
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static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward) |
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{ |
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const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks"; |
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const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG; |
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return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward); |
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} |
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void CChainParams::UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout) |
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{ |
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consensus.vDeployments[d].nStartTime = nStartTime; |
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consensus.vDeployments[d].nTimeout = nTimeout; |
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} |
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/** |
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* Main network |
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*/ |
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/** |
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* What makes a good checkpoint block? |
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* + Is surrounded by blocks with reasonable timestamps |
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* (no blocks before with a timestamp after, none after with |
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* timestamp before) |
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* + Contains no strange transactions |
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*/ |
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class CMainParams : public CChainParams { |
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public: |
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CMainParams() { |
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strNetworkID = "main"; |
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consensus.nSubsidyHalvingInterval = 210000; |
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consensus.BIP16Height = 173805; // 00000000000000ce80a7e057163a4db1d5ad7b20fb6f598c9597b9665c8fb0d4 - April 1, 2012 |
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consensus.BIP34Height = 227931; |
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consensus.BIP34Hash = uint256S("0x000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8"); |
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consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0 |
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consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931 |
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consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); |
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consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks |
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consensus.nPowTargetSpacing = 10 * 60; |
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consensus.fPowAllowMinDifficultyBlocks = false; |
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consensus.fPowNoRetargeting = false; |
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consensus.nRuleChangeActivationThreshold = 1916; // 95% of 2016 |
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consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008 |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008 |
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// Deployment of BIP68, BIP112, and BIP113. |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1462060800; // May 1st, 2016 |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017 |
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// Deployment of SegWit (BIP141, BIP143, and BIP147) |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1479168000; // November 15th, 2016. |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1510704000; // November 15th, 2017. |
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// The best chain should have at least this much work. |
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consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000723d3581fe1bd55373540a"); |
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// By default assume that the signatures in ancestors of this block are valid. |
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consensus.defaultAssumeValid = uint256S("0x0000000000000000003b9ce759c2a087d52abc4266f8f4ebd6d768b89defa50a"); //477890 |
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/** |
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* The message start string is designed to be unlikely to occur in normal data. |
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* The characters are rarely used upper ASCII, not valid as UTF-8, and produce |
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* a large 32-bit integer with any alignment. |
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*/ |
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pchMessageStart[0] = 0xf9; |
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pchMessageStart[1] = 0xbe; |
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pchMessageStart[2] = 0xb4; |
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pchMessageStart[3] = 0xd9; |
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nDefaultPort = 8333; |
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nPruneAfterHeight = 100000; |
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genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN); |
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consensus.hashGenesisBlock = genesis.GetHash(); |
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assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f")); |
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assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b")); |
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// Note that of those with the service bits flag, most only support a subset of possible options |
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vSeeds.emplace_back("seed.bitcoin.sipa.be", true); // Pieter Wuille, only supports x1, x5, x9, and xd |
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vSeeds.emplace_back("dnsseed.bluematt.me", true); // Matt Corallo, only supports x9 |
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vSeeds.emplace_back("dnsseed.bitcoin.dashjr.org", false); // Luke Dashjr |
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vSeeds.emplace_back("seed.bitcoinstats.com", true); // Christian Decker, supports x1 - xf |
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vSeeds.emplace_back("seed.bitcoin.jonasschnelli.ch", true); // Jonas Schnelli, only supports x1, x5, x9, and xd |
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vSeeds.emplace_back("seed.btc.petertodd.org", true); // Peter Todd, only supports x1, x5, x9, and xd |
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base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0); |
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base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5); |
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base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128); |
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base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E}; |
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base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4}; |
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bech32_hrp = "bc"; |
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vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main)); |
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fDefaultConsistencyChecks = false; |
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fRequireStandard = true; |
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fMineBlocksOnDemand = false; |
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checkpointData = (CCheckpointData) { |
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{ |
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{ 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")}, |
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{ 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")}, |
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{ 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")}, |
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{105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")}, |
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{134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe")}, |
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{168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763")}, |
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{193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317")}, |
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{210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e")}, |
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{216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e")}, |
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{225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932")}, |
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{250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214")}, |
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{279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40")}, |
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{295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")}, |
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} |
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}; |
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chainTxData = ChainTxData{ |
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// Data as of block 000000000000000000d97e53664d17967bd4ee50b23abb92e54a34eb222d15ae (height 478913). |
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1501801925, // * UNIX timestamp of last known number of transactions |
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243756039, // * total number of transactions between genesis and that timestamp |
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// (the tx=... number in the SetBestChain debug.log lines) |
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3.1 // * estimated number of transactions per second after that timestamp |
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}; |
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} |
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}; |
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/** |
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* Testnet (v3) |
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*/ |
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class CTestNetParams : public CChainParams { |
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public: |
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CTestNetParams() { |
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strNetworkID = "test"; |
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consensus.nSubsidyHalvingInterval = 210000; |
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consensus.BIP16Height = 514; // 00000000040b4e986385315e14bee30ad876d8b47f748025b26683116d21aa65 |
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consensus.BIP34Height = 21111; |
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consensus.BIP34Hash = uint256S("0x0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8"); |
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consensus.BIP65Height = 581885; // 00000000007f6655f22f98e72ed80d8b06dc761d5da09df0fa1dc4be4f861eb6 |
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consensus.BIP66Height = 330776; // 000000002104c8c45e99a8853285a3b592602a3ccde2b832481da85e9e4ba182 |
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consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); |
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consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks |
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consensus.nPowTargetSpacing = 10 * 60; |
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consensus.fPowAllowMinDifficultyBlocks = true; |
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consensus.fPowNoRetargeting = false; |
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consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains |
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consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008 |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008 |
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// Deployment of BIP68, BIP112, and BIP113. |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1456790400; // March 1st, 2016 |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017 |
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// Deployment of SegWit (BIP141, BIP143, and BIP147) |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1462060800; // May 1st 2016 |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1493596800; // May 1st 2017 |
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// The best chain should have at least this much work. |
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consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000002830dab7f76dbb7d63"); |
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// By default assume that the signatures in ancestors of this block are valid. |
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consensus.defaultAssumeValid = uint256S("0x0000000002e9e7b00e1f6dc5123a04aad68dd0f0968d8c7aa45f6640795c37b1"); //1135275 |
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pchMessageStart[0] = 0x0b; |
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pchMessageStart[1] = 0x11; |
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pchMessageStart[2] = 0x09; |
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pchMessageStart[3] = 0x07; |
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nDefaultPort = 18333; |
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nPruneAfterHeight = 1000; |
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genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN); |
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consensus.hashGenesisBlock = genesis.GetHash(); |
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assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943")); |
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assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b")); |
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vFixedSeeds.clear(); |
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vSeeds.clear(); |
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// nodes with support for servicebits filtering should be at the top |
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vSeeds.emplace_back("testnet-seed.bitcoin.jonasschnelli.ch", true); |
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vSeeds.emplace_back("seed.tbtc.petertodd.org", true); |
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vSeeds.emplace_back("testnet-seed.bluematt.me", false); |
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base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111); |
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base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196); |
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base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239); |
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base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF}; |
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base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94}; |
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bech32_hrp = "tb"; |
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vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test)); |
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fDefaultConsistencyChecks = false; |
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fRequireStandard = false; |
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fMineBlocksOnDemand = false; |
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checkpointData = (CCheckpointData) { |
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{ |
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{546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")}, |
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} |
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}; |
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chainTxData = ChainTxData{ |
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// Data as of block 00000000000001c200b9790dc637d3bb141fe77d155b966ed775b17e109f7c6c (height 1156179) |
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1501802953, |
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14706531, |
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0.15 |
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}; |
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} |
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}; |
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/** |
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* Regression test |
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*/ |
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class CRegTestParams : public CChainParams { |
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public: |
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CRegTestParams() { |
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strNetworkID = "regtest"; |
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consensus.nSubsidyHalvingInterval = 150; |
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consensus.BIP16Height = 0; // always enforce P2SH BIP16 on regtest |
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consensus.BIP34Height = 100000000; // BIP34 has not activated on regtest (far in the future so block v1 are not rejected in tests) |
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consensus.BIP34Hash = uint256(); |
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consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in rpc activation tests) |
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consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in rpc activation tests) |
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consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); |
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consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks |
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consensus.nPowTargetSpacing = 10 * 60; |
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consensus.fPowAllowMinDifficultyBlocks = true; |
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consensus.fPowNoRetargeting = true; |
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consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains |
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consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016) |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; |
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// The best chain should have at least this much work. |
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consensus.nMinimumChainWork = uint256S("0x00"); |
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// By default assume that the signatures in ancestors of this block are valid. |
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consensus.defaultAssumeValid = uint256S("0x00"); |
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pchMessageStart[0] = 0xfa; |
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pchMessageStart[1] = 0xbf; |
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pchMessageStart[2] = 0xb5; |
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pchMessageStart[3] = 0xda; |
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nDefaultPort = 18444; |
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nPruneAfterHeight = 1000; |
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genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN); |
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consensus.hashGenesisBlock = genesis.GetHash(); |
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assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")); |
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assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b")); |
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vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds. |
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vSeeds.clear(); //!< Regtest mode doesn't have any DNS seeds. |
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fDefaultConsistencyChecks = true; |
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fRequireStandard = false; |
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fMineBlocksOnDemand = true; |
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checkpointData = (CCheckpointData) { |
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{ |
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{0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")}, |
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} |
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}; |
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chainTxData = ChainTxData{ |
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0, |
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0, |
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0 |
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}; |
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base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111); |
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base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196); |
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base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239); |
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base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF}; |
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base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94}; |
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bech32_hrp = "bcrt"; |
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} |
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}; |
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static std::unique_ptr<CChainParams> globalChainParams; |
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const CChainParams &Params() { |
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assert(globalChainParams); |
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return *globalChainParams; |
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} |
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std::unique_ptr<CChainParams> CreateChainParams(const std::string& chain) |
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{ |
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if (chain == CBaseChainParams::MAIN) |
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return std::unique_ptr<CChainParams>(new CMainParams()); |
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else if (chain == CBaseChainParams::TESTNET) |
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return std::unique_ptr<CChainParams>(new CTestNetParams()); |
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else if (chain == CBaseChainParams::REGTEST) |
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return std::unique_ptr<CChainParams>(new CRegTestParams()); |
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throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain)); |
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} |
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void SelectParams(const std::string& network) |
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{ |
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SelectBaseParams(network); |
|
globalChainParams = CreateChainParams(network); |
|
} |
|
|
|
void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout) |
|
{ |
|
globalChainParams->UpdateVersionBitsParameters(d, nStartTime, nTimeout); |
|
}
|
|
|