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chainparams.cpp 16KB

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  1. // Copyright (c) 2010 Satoshi Nakamoto
  2. // Copyright (c) 2009-2015 The Bitcoin Core developers
  3. // Distributed under the MIT software license, see the accompanying
  4. // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  5. #include "chainparams.h"
  6. #include "consensus/merkle.h"
  7. #include "tinyformat.h"
  8. #include "util.h"
  9. #include "utilstrencodings.h"
  10. #include <assert.h>
  11. #include <boost/assign/list_of.hpp>
  12. #include "chainparamsseeds.h"
  13. static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
  14. {
  15. CMutableTransaction txNew;
  16. txNew.nVersion = 1;
  17. txNew.vin.resize(1);
  18. txNew.vout.resize(1);
  19. txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  20. txNew.vout[0].nValue = genesisReward;
  21. txNew.vout[0].scriptPubKey = genesisOutputScript;
  22. CBlock genesis;
  23. genesis.nTime = nTime;
  24. genesis.nBits = nBits;
  25. genesis.nNonce = nNonce;
  26. genesis.nVersion = nVersion;
  27. genesis.vtx.push_back(txNew);
  28. genesis.hashPrevBlock.SetNull();
  29. genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
  30. return genesis;
  31. }
  32. /**
  33. * Build the genesis block. Note that the output of its generation
  34. * transaction cannot be spent since it did not originally exist in the
  35. * database.
  36. *
  37. * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
  38. * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
  39. * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
  40. * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
  41. * vMerkleTree: 4a5e1e
  42. */
  43. static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
  44. {
  45. const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
  46. const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
  47. return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
  48. }
  49. /**
  50. * Main network
  51. */
  52. /**
  53. * What makes a good checkpoint block?
  54. * + Is surrounded by blocks with reasonable timestamps
  55. * (no blocks before with a timestamp after, none after with
  56. * timestamp before)
  57. * + Contains no strange transactions
  58. */
  59. class CMainParams : public CChainParams {
  60. public:
  61. CMainParams() {
  62. strNetworkID = "main";
  63. consensus.nSubsidyHalvingInterval = 210000;
  64. consensus.nMajorityEnforceBlockUpgrade = 750;
  65. consensus.nMajorityRejectBlockOutdated = 950;
  66. consensus.nMajorityWindow = 1000;
  67. consensus.BIP34Height = 227931;
  68. consensus.BIP34Hash = uint256S("0x000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8");
  69. consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  70. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  71. consensus.nPowTargetSpacing = 10 * 60;
  72. consensus.fPowAllowMinDifficultyBlocks = false;
  73. consensus.fPowNoRetargeting = false;
  74. consensus.nRuleChangeActivationThreshold = 1916; // 95% of 2016
  75. consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
  76. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
  77. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
  78. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
  79. // Deployment of BIP68, BIP112, and BIP113.
  80. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
  81. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1462060800; // May 1st, 2016
  82. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
  83. /**
  84. * The message start string is designed to be unlikely to occur in normal data.
  85. * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  86. * a large 32-bit integer with any alignment.
  87. */
  88. pchMessageStart[0] = 0xf9;
  89. pchMessageStart[1] = 0xbe;
  90. pchMessageStart[2] = 0xb4;
  91. pchMessageStart[3] = 0xd9;
  92. nDefaultPort = 8333;
  93. nPruneAfterHeight = 100000;
  94. genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
  95. consensus.hashGenesisBlock = genesis.GetHash();
  96. assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  97. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  98. vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
  99. vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
  100. vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
  101. vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
  102. vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
  103. vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
  104. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
  105. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
  106. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
  107. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
  108. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
  109. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
  110. fMiningRequiresPeers = true;
  111. fDefaultConsistencyChecks = false;
  112. fRequireStandard = true;
  113. fMineBlocksOnDemand = false;
  114. fTestnetToBeDeprecatedFieldRPC = false;
  115. checkpointData = (CCheckpointData) {
  116. boost::assign::map_list_of
  117. ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  118. ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  119. ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  120. (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  121. (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  122. (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  123. (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  124. (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  125. (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  126. (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  127. (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  128. (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  129. (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")),
  130. 1397080064, // * UNIX timestamp of last checkpoint block
  131. 36544669, // * total number of transactions between genesis and last checkpoint
  132. // (the tx=... number in the SetBestChain debug.log lines)
  133. 60000.0 // * estimated number of transactions per day after checkpoint
  134. };
  135. }
  136. };
  137. static CMainParams mainParams;
  138. /**
  139. * Testnet (v3)
  140. */
  141. class CTestNetParams : public CChainParams {
  142. public:
  143. CTestNetParams() {
  144. strNetworkID = "test";
  145. consensus.nSubsidyHalvingInterval = 210000;
  146. consensus.nMajorityEnforceBlockUpgrade = 51;
  147. consensus.nMajorityRejectBlockOutdated = 75;
  148. consensus.nMajorityWindow = 100;
  149. consensus.BIP34Height = 21111;
  150. consensus.BIP34Hash = uint256S("0x0000000023b3a96d3484e5abb3755c413e7d41500f8e2a5c3f0dd01299cd8ef8");
  151. consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  152. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  153. consensus.nPowTargetSpacing = 10 * 60;
  154. consensus.fPowAllowMinDifficultyBlocks = true;
  155. consensus.fPowNoRetargeting = false;
  156. consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
  157. consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
  158. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
  159. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
  160. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
  161. // Deployment of BIP68, BIP112, and BIP113.
  162. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
  163. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1456790400; // March 1st, 2016
  164. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1493596800; // May 1st, 2017
  165. pchMessageStart[0] = 0x0b;
  166. pchMessageStart[1] = 0x11;
  167. pchMessageStart[2] = 0x09;
  168. pchMessageStart[3] = 0x07;
  169. nDefaultPort = 18333;
  170. nPruneAfterHeight = 1000;
  171. genesis = CreateGenesisBlock(1296688602, 414098458, 0x1d00ffff, 1, 50 * COIN);
  172. consensus.hashGenesisBlock = genesis.GetHash();
  173. assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
  174. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  175. vFixedSeeds.clear();
  176. vSeeds.clear();
  177. // nodes with support for servicebits filtering should be at the top
  178. vSeeds.push_back(CDNSSeedData("testnetbitcoin.jonasschnelli.ch", "testnet-seed.bitcoin.jonasschnelli.ch", true));
  179. vSeeds.push_back(CDNSSeedData("petertodd.org", "seed.tbtc.petertodd.org", true));
  180. vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
  181. vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
  182. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  183. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  184. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
  185. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
  186. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
  187. vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
  188. fMiningRequiresPeers = true;
  189. fDefaultConsistencyChecks = false;
  190. fRequireStandard = false;
  191. fMineBlocksOnDemand = false;
  192. fTestnetToBeDeprecatedFieldRPC = true;
  193. checkpointData = (CCheckpointData) {
  194. boost::assign::map_list_of
  195. ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70")),
  196. 1337966069,
  197. 1488,
  198. 300
  199. };
  200. }
  201. };
  202. static CTestNetParams testNetParams;
  203. /**
  204. * Regression test
  205. */
  206. class CRegTestParams : public CChainParams {
  207. public:
  208. CRegTestParams() {
  209. strNetworkID = "regtest";
  210. consensus.nSubsidyHalvingInterval = 150;
  211. consensus.nMajorityEnforceBlockUpgrade = 750;
  212. consensus.nMajorityRejectBlockOutdated = 950;
  213. consensus.nMajorityWindow = 1000;
  214. consensus.BIP34Height = -1; // BIP34 has not necessarily activated on regtest
  215. consensus.BIP34Hash = uint256();
  216. consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  217. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  218. consensus.nPowTargetSpacing = 10 * 60;
  219. consensus.fPowAllowMinDifficultyBlocks = true;
  220. consensus.fPowNoRetargeting = true;
  221. consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains
  222. consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016)
  223. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
  224. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
  225. consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 999999999999ULL;
  226. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
  227. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0;
  228. consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 999999999999ULL;
  229. pchMessageStart[0] = 0xfa;
  230. pchMessageStart[1] = 0xbf;
  231. pchMessageStart[2] = 0xb5;
  232. pchMessageStart[3] = 0xda;
  233. nDefaultPort = 18444;
  234. nPruneAfterHeight = 1000;
  235. genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
  236. consensus.hashGenesisBlock = genesis.GetHash();
  237. assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
  238. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  239. vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
  240. vSeeds.clear(); //!< Regtest mode doesn't have any DNS seeds.
  241. fMiningRequiresPeers = false;
  242. fDefaultConsistencyChecks = true;
  243. fRequireStandard = false;
  244. fMineBlocksOnDemand = true;
  245. fTestnetToBeDeprecatedFieldRPC = false;
  246. checkpointData = (CCheckpointData){
  247. boost::assign::map_list_of
  248. ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
  249. 0,
  250. 0,
  251. 0
  252. };
  253. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  254. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  255. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
  256. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
  257. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
  258. }
  259. };
  260. static CRegTestParams regTestParams;
  261. static CChainParams *pCurrentParams = 0;
  262. const CChainParams &Params() {
  263. assert(pCurrentParams);
  264. return *pCurrentParams;
  265. }
  266. CChainParams& Params(const std::string& chain)
  267. {
  268. if (chain == CBaseChainParams::MAIN)
  269. return mainParams;
  270. else if (chain == CBaseChainParams::TESTNET)
  271. return testNetParams;
  272. else if (chain == CBaseChainParams::REGTEST)
  273. return regTestParams;
  274. else
  275. throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
  276. }
  277. void SelectParams(const std::string& network)
  278. {
  279. SelectBaseParams(network);
  280. pCurrentParams = &Params(network);
  281. }