src/chainparams.cpp

   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
   6 #include "chainparams.h"
   7
   8 #include "util.h"
   9 #include "utilstrencodings.h"
  10
  11 #include <assert.h>
  12
  13 #include <boost/assign/list_of.hpp>
  14
  15 using namespace std;
  16
  17 #include "chainparamsseeds.h"
  18
  19 /**
  20  * Main network
  21  */
  22 /**
  23  * What makes a good checkpoint block?
  24  * + Is surrounded by blocks with reasonable timestamps
  25  *   (no blocks before with a timestamp after, none after with
  26  *    timestamp before)
  27  * + Contains no strange transactions
  28  */
  29 static Checkpoints::MapCheckpoints mapCheckpoints =
  30         boost::assign::map_list_of
  31         ( 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d"))
  32         ( 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6"))
  33         ( 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20"))
  34         (105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97"))
  35         (134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe"))
  36         (168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763"))
  37         (193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317"))
  38         (210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e"))
  39         (216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e"))
  40         (225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932"))
  41         (250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214"))
  42         (279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40"))
  43         (295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983"))
  44         ;
  45 static const Checkpoints::CCheckpointData data = {
  46         &mapCheckpoints,
  47         1397080064, // * UNIX timestamp of last checkpoint block
  48         36544669,   // * total number of transactions between genesis and last checkpoint
  49                     //   (the tx=... number in the SetBestChain debug.log lines)
  50         60000.0     // * estimated number of transactions per day after checkpoint
  51     };
  52
  53 static Checkpoints::MapCheckpoints mapCheckpointsTestnet =
  54         boost::assign::map_list_of
  55         ( 546, uint256S("000000002a936ca763904c3c35fce2f3556c559c0214345d31b1bcebf76acb70"))
  56         ;
  57 static const Checkpoints::CCheckpointData dataTestnet = {
  58         &mapCheckpointsTestnet,
  59         1337966069,
  60         1488,
  61         300
  62     };
  63
  64 static Checkpoints::MapCheckpoints mapCheckpointsRegtest =
  65         boost::assign::map_list_of
  66         ( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"))
  67         ;
  68 static const Checkpoints::CCheckpointData dataRegtest = {
  69         &mapCheckpointsRegtest,
  70         0,
  71         0,
  72         0
  73     };
  74
  75 class CMainParams : public CChainParams {
  76 public:
  77     CMainParams() {
  78         strNetworkID = "main";
  79         consensus.nSubsidyHalvingInterval = 210000;
  80         consensus.nMajorityEnforceBlockUpgrade = 750;
  81         consensus.nMajorityRejectBlockOutdated = 950;
  82         consensus.nMajorityWindow = 1000;
  83         consensus.powLimit = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
  84         consensus.nPowTargetTimespan = 14 * 24 * 60 * 60; // two weeks
  85         consensus.nPowTargetSpacing = 10 * 60;
  86         consensus.fPowAllowMinDifficultyBlocks = false;
  87         /**
  88          * The message start string is designed to be unlikely to occur in normal data.
  89          * The characters are rarely used upper ASCII, not valid as UTF-8, and produce
  90          * a large 4-byte int at any alignment.
  91          */
  92         pchMessageStart[0] = 0xf9;
  93         pchMessageStart[1] = 0xbe;
  94         pchMessageStart[2] = 0xb4;
  95         pchMessageStart[3] = 0xd9;
  96         vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
  97         nDefaultPort = 8333;
  98         nMinerThreads = 0;
  99         nPruneAfterHeight = 100000;
 100
 101         /**
 102          * Build the genesis block. Note that the output of the genesis coinbase cannot
 103          * be spent as it did not originally exist in the database.
 104          *
 105          * CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
 106          *   CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
 107          *     CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
 108          *     CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
 109          *   vMerkleTree: 4a5e1e
 110          */
 111         const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
 112         CMutableTransaction txNew;
 113         txNew.vin.resize(1);
 114         txNew.vout.resize(1);
 115         txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
 116         txNew.vout[0].nValue = 50 * COIN;
 117         txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
 118         genesis.vtx.push_back(txNew);
 119         genesis.hashPrevBlock.SetNull();
 120         genesis.hashMerkleRoot = genesis.BuildMerkleTree();
 121         genesis.nVersion = 1;
 122         genesis.nTime    = 1231006505;
 123         genesis.nBits    = 0x1d00ffff;
 124         genesis.nNonce   = 2083236893;
 125
 126         consensus.hashGenesisBlock = genesis.GetHash();
 127         assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
 128         assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
 129
 130         vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
 131         vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
 132         vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
 133         vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Addy Yeow
 134         vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
 135
 136         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
 137         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
 138         base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,128);
 139         base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
 140         base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
 141
 142         vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
 143
 144         fRequireRPCPassword = true;
 145         fMiningRequiresPeers = true;
 146         fDefaultConsistencyChecks = false;
 147         fRequireStandard = true;
 148         fMineBlocksOnDemand = false;
 149         fTestnetToBeDeprecatedFieldRPC = false;
 150     }
 151
 152     const Checkpoints::CCheckpointData& Checkpoints() const
 153     {
 154         return data;
 155     }
 156 };
 157 static CMainParams mainParams;
 158
 159 /**
 160  * Testnet (v3)
 161  */
 162 class CTestNetParams : public CMainParams {
 163 public:
 164     CTestNetParams() {
 165         strNetworkID = "test";
 166         consensus.nMajorityEnforceBlockUpgrade = 51;
 167         consensus.nMajorityRejectBlockOutdated = 75;
 168         consensus.nMajorityWindow = 100;
 169         consensus.fPowAllowMinDifficultyBlocks = true;
 170         pchMessageStart[0] = 0x0b;
 171         pchMessageStart[1] = 0x11;
 172         pchMessageStart[2] = 0x09;
 173         pchMessageStart[3] = 0x07;
 174         vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
 175         nDefaultPort = 18333;
 176         nMinerThreads = 0;
 177         nPruneAfterHeight = 1000;
 178
 179         //! Modify the testnet genesis block so the timestamp is valid for a later start.
 180         genesis.nTime = 1296688602;
 181         genesis.nNonce = 414098458;
 182         consensus.hashGenesisBlock = genesis.GetHash();
 183         assert(consensus.hashGenesisBlock == uint256S("0x000000000933ea01ad0ee984209779baaec3ced90fa3f408719526f8d77f4943"));
 184
 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
 192         base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
 193         base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
 194         base58Prefixes[SECRET_KEY] =     std::vector<unsigned char>(1,239);
 195         base58Prefixes[EXT_PUBLIC_KEY] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
 196         base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
 197
 198         vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
 199
 200         fRequireRPCPassword = true;
 201         fMiningRequiresPeers = true;
 202         fDefaultConsistencyChecks = false;
 203         fRequireStandard = false;
 204         fMineBlocksOnDemand = false;
 205         fTestnetToBeDeprecatedFieldRPC = true;
 206     }
 207     const Checkpoints::CCheckpointData& Checkpoints() const
 208     {
 209         return dataTestnet;
 210     }
 211 };
 212 static CTestNetParams testNetParams;
 213
 214 /**
 215  * Regression test
 216  */
 217 class CRegTestParams : public CTestNetParams {
 218 public:
 219     CRegTestParams() {
 220         strNetworkID = "regtest";
 221         consensus.nSubsidyHalvingInterval = 150;
 222         consensus.nMajorityEnforceBlockUpgrade = 750;
 223         consensus.nMajorityRejectBlockOutdated = 950;
 224         consensus.nMajorityWindow = 1000;
 225         consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
 226         pchMessageStart[0] = 0xfa;
 227         pchMessageStart[1] = 0xbf;
 228         pchMessageStart[2] = 0xb5;
 229         pchMessageStart[3] = 0xda;
 230         nMinerThreads = 1;
 231         genesis.nTime = 1296688602;
 232         genesis.nBits = 0x207fffff;
 233         genesis.nNonce = 2;
 234         consensus.hashGenesisBlock = genesis.GetHash();
 235         nDefaultPort = 18444;
 236         assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
 237         nPruneAfterHeight = 1000;
 238
 239         vFixedSeeds.clear(); //! Regtest mode doesn't have any fixed seeds.
 240         vSeeds.clear();  //! Regtest mode doesn't have any DNS seeds.
 241
 242         fRequireRPCPassword = false;
 243         fMiningRequiresPeers = false;
 244         fDefaultConsistencyChecks = true;
 245         fRequireStandard = false;
 246         fMineBlocksOnDemand = true;
 247         fTestnetToBeDeprecatedFieldRPC = false;
 248     }
 249     const Checkpoints::CCheckpointData& Checkpoints() const
 250     {
 251         return dataRegtest;
 252     }
 253 };
 254 static CRegTestParams regTestParams;
 255
 256 static CChainParams *pCurrentParams = 0;
 257
 258 const CChainParams &Params() {
 259     assert(pCurrentParams);
 260     return *pCurrentParams;
 261 }
 262
 263 CChainParams &Params(CBaseChainParams::Network network) {
 264     switch (network) {
 265         case CBaseChainParams::MAIN:
 266             return mainParams;
 267         case CBaseChainParams::TESTNET:
 268             return testNetParams;
 269         case CBaseChainParams::REGTEST:
 270             return regTestParams;
 271         default:
 272             assert(false && "Unimplemented network");
 273             return mainParams;
 274     }
 275 }
 276
 277 void SelectParams(CBaseChainParams::Network network) {
 278     SelectBaseParams(network);
 279     pCurrentParams = &Params(network);
 280 }
 281
 282 bool SelectParamsFromCommandLine()
 283 {
 284     CBaseChainParams::Network network = NetworkIdFromCommandLine();
 285     if (network == CBaseChainParams::MAX_NETWORK_TYPES)
 286         return false;
 287
 288     SelectParams(network);
 289     return true;
 290 }