fdda3c5085
The main and test networks are configured to use parameters that are currently low-memory but usable with the basic solver; they will be increased once the solver is optimised. The regtest network is configured to have extremely low memory usage for speed. Note that Bitcoin's double-hasher is used for the difficulty check. This does not match the paper, but is simpler than changing the block header serialization. Single hashing is kept for the EquiHash solver because there is no requirement on execution time there, only on memory usage.
283 lines
12 KiB
C++
283 lines
12 KiB
C++
// Copyright (c) 2010 Satoshi Nakamoto
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// Copyright (c) 2009-2014 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 "util.h"
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#include "utilstrencodings.h"
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#include <assert.h>
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#include <boost/assign/list_of.hpp>
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using namespace std;
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#include "chainparamsseeds.h"
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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.nMajorityEnforceBlockUpgrade = 750;
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consensus.nMajorityRejectBlockOutdated = 950;
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consensus.nMajorityWindow = 1000;
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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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/**
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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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vAlertPubKey = ParseHex("04fc9702847840aaf195de8442ebecedf5b095cdbb9bc716bda9110971b28a49e0ead8564ff0db22209e0374782c093bb899692d524e9d6a6956e7c5ecbcd68284");
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nDefaultPort = 8333;
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nMinerThreads = 0;
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nMaxTipAge = 24 * 60 * 60;
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nPruneAfterHeight = 100000;
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nEquihashN = 96;
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nEquihashK = 5;
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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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const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
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CMutableTransaction txNew;
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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) << vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
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txNew.vout[0].nValue = 50 * COIN;
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txNew.vout[0].scriptPubKey = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
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genesis.vtx.push_back(txNew);
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genesis.hashPrevBlock.SetNull();
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genesis.hashMerkleRoot = genesis.BuildMerkleTree();
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genesis.nVersion = 1;
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genesis.nTime = 1231006505;
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genesis.nBits = 0x1d00ffff;
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genesis.nNonce = 2083236893;
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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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vSeeds.push_back(CDNSSeedData("bitcoin.sipa.be", "seed.bitcoin.sipa.be")); // Pieter Wuille
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vSeeds.push_back(CDNSSeedData("bluematt.me", "dnsseed.bluematt.me")); // Matt Corallo
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vSeeds.push_back(CDNSSeedData("dashjr.org", "dnsseed.bitcoin.dashjr.org")); // Luke Dashjr
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vSeeds.push_back(CDNSSeedData("bitcoinstats.com", "seed.bitcoinstats.com")); // Christian Decker
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vSeeds.push_back(CDNSSeedData("xf2.org", "bitseed.xf2.org")); // Jeff Garzik
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vSeeds.push_back(CDNSSeedData("bitcoin.jonasschnelli.ch", "seed.bitcoin.jonasschnelli.ch")); // Jonas Schnelli
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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] = boost::assign::list_of(0x04)(0x88)(0xB2)(0x1E).convert_to_container<std::vector<unsigned char> >();
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base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x88)(0xAD)(0xE4).convert_to_container<std::vector<unsigned char> >();
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vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
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fRequireRPCPassword = true;
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fMiningRequiresPeers = true;
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fDefaultConsistencyChecks = false;
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fRequireStandard = true;
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fMineBlocksOnDemand = false;
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fTestnetToBeDeprecatedFieldRPC = false;
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checkpointData = (Checkpoints::CCheckpointData) {
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boost::assign::map_list_of
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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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1397080064, // * UNIX timestamp of last checkpoint block
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36544669, // * total number of transactions between genesis and last checkpoint
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// (the tx=... number in the SetBestChain debug.log lines)
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60000.0 // * estimated number of transactions per day after checkpoint
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};
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}
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};
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static CMainParams mainParams;
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/**
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* Testnet (v3)
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*/
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class CTestNetParams : public CMainParams {
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public:
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CTestNetParams() {
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strNetworkID = "test";
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consensus.nMajorityEnforceBlockUpgrade = 51;
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consensus.nMajorityRejectBlockOutdated = 75;
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consensus.nMajorityWindow = 100;
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consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
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consensus.fPowAllowMinDifficultyBlocks = true;
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pchMessageStart[0] = 0x0c;
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pchMessageStart[1] = 0x12;
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pchMessageStart[2] = 0x99;
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pchMessageStart[3] = 0x17;
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vAlertPubKey = ParseHex("04302390343f91cc401d56d68b123028bf52e5fca1939df127f63c6467cdf9c8e2c14b61104cf817d0b780da337893ecc4aaff1309e536162dabbdb45200ca2b0a");
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nDefaultPort = 18333;
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nMinerThreads = 0;
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nMaxTipAge = 0x7fffffff;
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nPruneAfterHeight = 1000;
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//! Modify the testnet genesis block so the timestamp is valid for a later start.
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genesis.nTime = 1296688602;
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genesis.nBits = 0x207fffff;
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genesis.nNonce = 2;
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consensus.hashGenesisBlock = genesis.GetHash();
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assert(consensus.hashGenesisBlock == uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
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vFixedSeeds.clear();
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vSeeds.clear();
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// TODO: set up bootstrapping
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//vSeeds.push_back(CDNSSeedData("alexykot.me", "testnet-seed.alexykot.me"));
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//vSeeds.push_back(CDNSSeedData("bitcoin.petertodd.org", "testnet-seed.bitcoin.petertodd.org"));
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//vSeeds.push_back(CDNSSeedData("bluematt.me", "testnet-seed.bluematt.me"));
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//vSeeds.push_back(CDNSSeedData("bitcoin.schildbach.de", "testnet-seed.bitcoin.schildbach.de"));
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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] = boost::assign::list_of(0x04)(0x35)(0x87)(0xCF).convert_to_container<std::vector<unsigned char> >();
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base58Prefixes[EXT_SECRET_KEY] = boost::assign::list_of(0x04)(0x35)(0x83)(0x94).convert_to_container<std::vector<unsigned char> >();
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vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
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fRequireRPCPassword = true;
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fMiningRequiresPeers = true;
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fDefaultConsistencyChecks = false;
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fRequireStandard = false;
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fMineBlocksOnDemand = false;
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fTestnetToBeDeprecatedFieldRPC = true;
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checkpointData = (Checkpoints::CCheckpointData) {
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boost::assign::map_list_of
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( 0, consensus.hashGenesisBlock),
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genesis.nTime,
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0,
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0
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};
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}
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};
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static CTestNetParams testNetParams;
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/**
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* Regression test
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*/
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class CRegTestParams : public CTestNetParams {
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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.nMajorityEnforceBlockUpgrade = 750;
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consensus.nMajorityRejectBlockOutdated = 950;
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consensus.nMajorityWindow = 1000;
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consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
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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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nMinerThreads = 1;
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nMaxTipAge = 24 * 60 * 60;
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nEquihashN = 48;
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nEquihashK = 5;
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genesis.nTime = 1296688602;
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genesis.nBits = 0x207fffff;
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genesis.nNonce = 2;
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consensus.hashGenesisBlock = genesis.GetHash();
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nDefaultPort = 18444;
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assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
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nPruneAfterHeight = 1000;
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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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fRequireRPCPassword = false;
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fMiningRequiresPeers = false;
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fDefaultConsistencyChecks = true;
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fRequireStandard = false;
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fMineBlocksOnDemand = true;
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fTestnetToBeDeprecatedFieldRPC = false;
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checkpointData = (Checkpoints::CCheckpointData){
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boost::assign::map_list_of
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( 0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")),
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0,
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0,
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0
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};
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}
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};
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static CRegTestParams regTestParams;
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static CChainParams *pCurrentParams = 0;
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const CChainParams &Params() {
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assert(pCurrentParams);
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return *pCurrentParams;
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}
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CChainParams &Params(CBaseChainParams::Network network) {
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switch (network) {
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case CBaseChainParams::MAIN:
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return mainParams;
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case CBaseChainParams::TESTNET:
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return testNetParams;
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case CBaseChainParams::REGTEST:
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return regTestParams;
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default:
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assert(false && "Unimplemented network");
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return mainParams;
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}
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}
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void SelectParams(CBaseChainParams::Network network) {
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SelectBaseParams(network);
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pCurrentParams = &Params(network);
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}
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bool SelectParamsFromCommandLine()
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{
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CBaseChainParams::Network network = NetworkIdFromCommandLine();
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if (network == CBaseChainParams::MAX_NETWORK_TYPES)
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return false;
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SelectParams(network);
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return true;
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}
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