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chainparams.cpp 13KB

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  1. // Copyright (c) 2010 Satoshi Nakamoto
  2. // Copyright (c) 2009-2014 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 "random.h"
  7. #include "util.h"
  8. #include "utilstrencodings.h"
  9. #include <assert.h>
  10. #include <boost/assign/list_of.hpp>
  11. using namespace std;
  12. struct SeedSpec6 {
  13. uint8_t addr[16];
  14. uint16_t port;
  15. };
  16. #include "chainparamsseeds.h"
  17. /**
  18. * Main network
  19. */
  20. //! Convert the pnSeeds6 array into usable address objects.
  21. static void convertSeed6(std::vector<CAddress> &vSeedsOut, const SeedSpec6 *data, unsigned int count)
  22. {
  23. // It'll only connect to one or two seed nodes because once it connects,
  24. // it'll get a pile of addresses with newer timestamps.
  25. // Seed nodes are given a random 'last seen time' of between one and two
  26. // weeks ago.
  27. const int64_t nOneWeek = 7*24*60*60;
  28. for (unsigned int i = 0; i < count; i++)
  29. {
  30. struct in6_addr ip;
  31. memcpy(&ip, data[i].addr, sizeof(ip));
  32. CAddress addr(CService(ip, data[i].port));
  33. addr.nTime = GetTime() - GetRand(nOneWeek) - nOneWeek;
  34. vSeedsOut.push_back(addr);
  35. }
  36. }
  37. /**
  38. * What makes a good checkpoint block?
  39. * + Is surrounded by blocks with reasonable timestamps
  40. * (no blocks before with a timestamp after, none after with
  41. * timestamp before)
  42. * + Contains no strange transactions
  43. */
  44. static Checkpoints::MapCheckpoints mapCheckpoints =
  45. boost::assign::map_list_of
  46. ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  47. ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  48. ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  49. (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  50. (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  51. (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  52. (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  53. (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  54. (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  55. (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  56. (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  57. (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  58. (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
  59. ;
  60. static const Checkpoints::CCheckpointData data = {
  61. &mapCheckpoints,
  62. 1397080064, // * UNIX timestamp of last checkpoint block
  63. 36544669, // * total number of transactions between genesis and last checkpoint
  64. // (the tx=... number in the SetBestChain debug.log lines)
  65. 60000.0 // * estimated number of transactions per day after checkpoint
  66. };
  67. static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
  68. boost::assign::map_list_of
  69. ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
  70. ;
  71. static const Checkpoints::CCheckpointData dataTestnet = {
  72. &mapCheckpointsTestnet,
  73. 1337966069,
  74. 1488,
  75. 300
  76. };
  77. static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
  78. boost::assign::map_list_of
  79. ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
  80. ;
  81. static const Checkpoints::CCheckpointData dataRegtest = {
  82. &mapCheckpointsRegtest,
  83. 0,
  84. 0,
  85. 0
  86. };
  87. class CMainParams : public CChainParams {
  88. public:
  89. CMainParams() {
  90. strNetworkID = "main";
  91. consensus.nSubsidyHalvingInterval = 210000;
  92. consensus.nMajorityEnforceBlockUpgrade = 750;
  93. consensus.nMajorityRejectBlockOutdated = 950;
  94. consensus.nMajorityWindow = 1000;
  95. consensus.powLimit = ~arith_uint256(0) >> 32;
  96. consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  97. consensus.nPowTargetSpacing = 10 * 60;
  98. consensus.fPowAllowMinDifficultyBlocks = false;
  99. /**
  100. * The message start string is designed to be unlikely to occur in normal data.
  101. * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  102. * a large 4-byte int at any alignment.
  103. */
  104. pchMessageStart[0] = 0xf9;
  105. pchMessageStart[1] = 0xbe;
  106. pchMessageStart[2] = 0xb4;
  107. pchMessageStart[3] = 0xd9;
  108. vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
  109. nDefaultPort = 8333;
  110. nMinerThreads = 0;
  111. /**
  112. * Build the genesis block. Note that the output of the genesis coinbase cannot
  113. * be spent as it did not originally exist in the database.
  114. *
  115. * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
  116. * CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
  117. * CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
  118. * CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
  119. * vMerkleTree: 4a5e1e
  120. */
  121. const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
  122. CMutableTransaction txNew;
  123. txNew.vin.resize(1);
  124. txNew.vout.resize(1);
  125. txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
  126. txNew.vout[0].nValue = 50 * COIN;
  127. txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
  128. genesis.vtx.push_back(txNew);
  129. genesis.hashPrevBlock.SetNull();
  130. genesis.hashMerkleRoot = genesis.BuildMerkleTree();
  131. genesis.nVersion = 1;
  132. genesis.nTime = 1231006505;
  133. genesis.nBits = 0x1d00ffff;
  134. genesis.nNonce = 2083236893;
  135. consensus.hashGenesisBlock = genesis.GetHash();
  136. assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
  137. assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
  138. vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be"));
  139. vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me"));
  140. vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org"));
  141. vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com"));
  142. vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org"));
  143. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
  144. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
  145. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
  146. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
  147. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
  148. convertSeed6(vFixedSeeds, pnSeed6_main, ARRAYLEN(pnSeed6_main));
  149. fRequireRPCPassword = true;
  150. fMiningRequiresPeers = true;
  151. fDefaultCheckMemPool = false;
  152. fRequireStandard = true;
  153. fMineBlocksOnDemand = false;
  154. fTestnetToBeDeprecatedFieldRPC = false;
  155. }
  156. const Checkpoints::CCheckpointData& Checkpoints() const
  157. {
  158. return data;
  159. }
  160. };
  161. static CMainParams mainParams;
  162. /**
  163. * Testnet (v3)
  164. */
  165. class CTestNetParams : public CMainParams {
  166. public:
  167. CTestNetParams() {
  168. strNetworkID = "test";
  169. consensus.nMajorityEnforceBlockUpgrade = 51;
  170. consensus.nMajorityRejectBlockOutdated = 75;
  171. consensus.nMajorityWindow = 100;
  172. consensus.fPowAllowMinDifficultyBlocks = true;
  173. pchMessageStart[0] = 0x0b;
  174. pchMessageStart[1] = 0x11;
  175. pchMessageStart[2] = 0x09;
  176. pchMessageStart[3] = 0x07;
  177. vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
  178. nDefaultPort = 18333;
  179. nMinerThreads = 0;
  180. //! Modify the testnet genesis block so the timestamp is valid for a later start.
  181. genesis.nTime = 1296688602;
  182. genesis.nNonce = 414098458;
  183. consensus.hashGenesisBlock = genesis.GetHash();
  184. assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
  185. vFixedSeeds.clear();
  186. vSeeds.clear();
  187. vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
  188. vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
  189. vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
  190. vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
  191. base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
  192. base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
  193. base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
  194. base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
  195. base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
  196. convertSeed6(vFixedSeeds, pnSeed6_test, ARRAYLEN(pnSeed6_test));
  197. fRequireRPCPassword = true;
  198. fMiningRequiresPeers = true;
  199. fDefaultCheckMemPool = false;
  200. fRequireStandard = false;
  201. fMineBlocksOnDemand = false;
  202. fTestnetToBeDeprecatedFieldRPC = true;
  203. }
  204. const Checkpoints::CCheckpointData& Checkpoints() const
  205. {
  206. return dataTestnet;
  207. }
  208. };
  209. static CTestNetParams testNetParams;
  210. /**
  211. * Regression test
  212. */
  213. class CRegTestParams : public CTestNetParams {
  214. public:
  215. CRegTestParams() {
  216. strNetworkID = "regtest";
  217. consensus.nSubsidyHalvingInterval = 150;
  218. consensus.nMajorityEnforceBlockUpgrade = 750;
  219. consensus.nMajorityRejectBlockOutdated = 950;
  220. consensus.nMajorityWindow = 1000;
  221. consensus.powLimit = ~arith_uint256(0) >> 1;
  222. pchMessageStart[0] = 0xfa;
  223. pchMessageStart[1] = 0xbf;
  224. pchMessageStart[2] = 0xb5;
  225. pchMessageStart[3] = 0xda;
  226. nMinerThreads = 1;
  227. genesis.nTime = 1296688602;
  228. genesis.nBits = 0x207fffff;
  229. genesis.nNonce = 2;
  230. consensus.hashGenesisBlock = genesis.GetHash();
  231. nDefaultPort = 18444;
  232. assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
  233. vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
  234. vSeeds.clear(); //! Regtest mode doesn't have any DNS seeds.
  235. fRequireRPCPassword = false;
  236. fMiningRequiresPeers = false;
  237. fDefaultCheckMemPool = true;
  238. fRequireStandard = false;
  239. fMineBlocksOnDemand = true;
  240. fTestnetToBeDeprecatedFieldRPC = false;
  241. }
  242. const Checkpoints::CCheckpointData& Checkpoints() const
  243. {
  244. return dataRegtest;
  245. }
  246. };
  247. static CRegTestParams regTestParams;
  248. static CChainParams *pCurrentParams = 0;
  249. const CChainParams &Params() {
  250. assert(pCurrentParams);
  251. return *pCurrentParams;
  252. }
  253. CChainParams &Params(CBaseChainParams::Network network) {
  254. switch (network) {
  255. case CBaseChainParams::MAIN:
  256. return mainParams;
  257. case CBaseChainParams::TESTNET:
  258. return testNetParams;
  259. case CBaseChainParams::REGTEST:
  260. return regTestParams;
  261. default:
  262. assert(false && "Unimplemented network");
  263. return mainParams;
  264. }
  265. }
  266. void SelectParams(CBaseChainParams::Network network) {
  267. SelectBaseParams(network);
  268. pCurrentParams = &Params(network);
  269. }
  270. bool SelectParamsFromCommandLine()
  271. {
  272. CBaseChainParams::Network network = NetworkIdFromCommandLine();
  273. if (network == CBaseChainParams::MAX_NETWORK_TYPES)
  274. return false;
  275. SelectParams(network);
  276. return true;
  277. }