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chainparams.cpp
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chainparams.cpp
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// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2018 The Bitcoin Core developers
// Copyright (c) 2016-2017 The Zcash developers
// Copyright (c) 2018 The Bitcoin Private developers
// Copyright (c) 2017-2018 The Bitcoin Gold developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <chainparams.h>
#include <chainparamsseeds.h>
#include <consensus/merkle.h>
#include <uint256.h>
#include <arith_uint256.h>
#include <base58.h>
#include <hash.h> // for signet block challenge hash
#include <tinyformat.h>
#include <util/system.h>
#include <util/strencodings.h>
#include <pubkey.h>
#include <script/standard.h>
#include <versionbitsinfo.h>
// For equihash_parameters_acceptable.
#include <crypto/equihash.h>
const unsigned int MAX_HEADERS_RESULTS = 2000;
const unsigned int MAX_PROTOCOL_MESSAGE_LENGTH = 4 * 1000 * 1000;
#define equihash_parameters_acceptable(N, K) \
((CBlockHeader::HEADER_SIZE + equihash_solution_size(N, K))*MAX_HEADERS_RESULTS < \
MAX_PROTOCOL_MESSAGE_LENGTH-1000)
#include <assert.h>
#include <limits>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
CMutableTransaction txNew;
txNew.nVersion = 1;
txNew.vin.resize(1);
txNew.vout.resize(1);
txNew.vin[0].scriptSig = CScript() << 486604799 << CScriptNum(4) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp));
txNew.vout[0].nValue = genesisReward;
txNew.vout[0].scriptPubKey = genesisOutputScript;
CBlock genesis;
genesis.nTime = nTime;
genesis.nBits = nBits;
genesis.nNonce = ArithToUint256(arith_uint256(nNonce));
genesis.nVersion = nVersion;
genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
genesis.hashPrevBlock.SetNull();
genesis.nHeight = 0;
genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
return genesis;
}
/**
* Build the genesis block. Note that the output of its generation
* transaction cannot be spent since it did not originally exist in the
* database.
*
* CBlock(hash=000000000019d6, ver=1, hashPrevBlock=00000000000000, hashMerkleRoot=4a5e1e, nTime=1231006505, nBits=1d00ffff, nNonce=2083236893, vtx=1)
* CTransaction(hash=4a5e1e, ver=1, vin.size=1, vout.size=1, nLockTime=0)
* CTxIn(COutPoint(000000, -1), coinbase 04ffff001d0104455468652054696d65732030332f4a616e2f32303039204368616e63656c6c6f72206f6e206272696e6b206f66207365636f6e64206261696c6f757420666f722062616e6b73)
* CTxOut(nValue=50.00000000, scriptPubKey=0x5F1DF16B2B704C8A578D0B)
* vMerkleTree: 4a5e1e
*/
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
const char* pszTimestamp = "The Times 03/Jan/2009 Chancellor on brink of second bailout for banks";
const CScript genesisOutputScript = CScript() << ParseHex("04678afdb0fe5548271967f1a67130b7105cd6a828e03909a67962e0ea1f61deb649f6bc3f4cef38c4f35504e51ec112de5c384df7ba0b8d578a4c702b6bf11d5f") << OP_CHECKSIG;
return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
/**
* Main network
*/
const arith_uint256 maxUint = UintToArith256(uint256S("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"));
class CMainParams : public CChainParams {
public:
CMainParams() {
strNetworkID = CBaseChainParams::MAIN;
consensus.signet_blocks = false;
consensus.signet_challenge.clear();
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP16Exception = uint256S("0x00000000000002dc756eebf4f49723ed8d30cc28a5f108eb94b1ba88ac4f9c22");
consensus.BIP34Height = 227931;
consensus.BIP34Hash = uint256S("0x000000000000024b89b42a942fe0d9fea3bb44ab7bd1b19115dd6a759c0808b8");
consensus.BIP65Height = 388381; // 000000000000000004c2b624ed5d7756c508d90fd0da2c7c679febfa6c4735f0
consensus.BIP66Height = 363725; // 00000000000000000379eaa19dce8c9b722d46ae6a57c2f1a988119488b50931
consensus.CSVHeight = 419328; // 000000000000000004a1b34462cb8aeebd5799177f7a29cf28f2d1961716b5b5
consensus.SegwitHeight = 481824; // 0000000000000000001c8018d9cb3b742ef25114f27563e3fc4a1902167f9893
consensus.MinBIP9WarningHeight = 483840; // segwit activation height + miner confirmation window
consensus.BTGHeight = 491407; // Around 10/25/2017 12:00 UTC
consensus.BTGPremineWindow = 8000;
consensus.BTGZawyLWMAHeight = 536200; // Around 07/01/2018
consensus.BTGEquihashForkHeight = 536200; // Around 07/01/2018
consensus.BTGPremineEnforceWhitelist = true;
consensus.powLimit = uint256S("0007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitStart = uint256S("0000000fffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitLegacy = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nDigishieldAveragingWindow = 30;
assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nDigishieldAveragingWindow);
consensus.nDigishieldMaxAdjustDown = 32;
consensus.nDigishieldMaxAdjustUp = 16;
consensus.nZawyLwmaAveragingWindow = 45;
consensus.nZawyLwmaAdjustedWeightLegacy = 13772;
consensus.nZawyLwmaAdjustedWeight = 13772;
consensus.nZawyLwmaMinDenominatorLegacy = 10;
consensus.nZawyLwmaMinDenominator = 10;
consensus.bZawyLwmaSolvetimeLimitation = true;
consensus.BTGMaxFutureBlockTime = 12 * 10 * 60; // 120 mins
consensus.nPowTargetTimespanLegacy = 14 * 24 * 60 * 60; // 10 minutes
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = false;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1815; // 90% of 2016
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespanLegacy / nPowTargetSpacing
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
// Deployment of Taproot (BIPs 340-342)
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 709632; // Approximately November 12th, 2021
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000a21782bdfbc18847452a68");
// By default assume that the signatures in ancestors of this block are valid.
consensus.defaultAssumeValid = uint256S("0x00000001ddb50bf6de8012bf8cd15bebc278c7e75ce5f77409ab78a291bd7e36"); //566000
/**
* The message start string is designed to be unlikely to occur in normal data.
* The characters are rarely used upper ASCII, not valid as UTF-8, and produce
* a large 32-bit integer with any alignment.
*/
pchMessageStart[0] = 0xe1;
pchMessageStart[1] = 0x47;
pchMessageStart[2] = 0x6d;
pchMessageStart[3] = 0x44;
nDefaultPort = 8338; // different port than Bitcoin
nPruneAfterHeight = 100000;
m_assumed_blockchain_size = 350;
m_assumed_chain_state_size = 6;
const size_t N = 200, K = 9;
const size_t N2 = 144, K2 = 5;
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N, K));
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N2, K2));
nEquihashN = N;
nEquihashK = K;
nEquihashNnew = N2;
nEquihashKnew = K2;
genesis = CreateGenesisBlock(1231006505, 2083236893, 0x1d00ffff, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash(consensus);
assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
// Note that of those which support the service bits prefix, most only support a subset of
// possible options.
// This is fine at runtime as we'll fall back to using them as an addrfetch if they don't support the
// service bits we want, but we should get them updated to support all service bits wanted by any
// release ASAP to avoid it where possible.
vSeeds.emplace_back("eu-dnsseed.bitcoingold-official.org");
vSeeds.emplace_back("dnsseed.bitcoingold.org");
vSeeds.emplace_back("dnsseed.bitcoingold.dev");
vSeeds.emplace_back("dnsseed.emzy.de"); // Stephan Oeste
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,38); // prefix: G
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,23); // prefix: A
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,128);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
bech32_hrp = "btg";
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
fDefaultConsistencyChecks = false;
fRequireStandard = true;
m_is_test_chain = false;
m_is_mockable_chain = false;
checkpointData = {
{
{ 11111, uint256S("0x0000000069e244f73d78e8fd29ba2fd2ed618bd6fa2ee92559f542fdb26e7c1d")},
{ 33333, uint256S("0x000000002dd5588a74784eaa7ab0507a18ad16a236e7b1ce69f00d7ddfb5d0a6")},
{ 74000, uint256S("0x0000000000573993a3c9e41ce34471c079dcf5f52a0e824a81e7f953b8661a20")},
{105000, uint256S("0x00000000000291ce28027faea320c8d2b054b2e0fe44a773f3eefb151d6bdc97")},
{134444, uint256S("0x00000000000005b12ffd4cd315cd34ffd4a594f430ac814c91184a0d42d2b0fe")},
{168000, uint256S("0x000000000000099e61ea72015e79632f216fe6cb33d7899acb35b75c8303b763")},
{193000, uint256S("0x000000000000059f452a5f7340de6682a977387c17010ff6e6c3bd83ca8b1317")},
{210000, uint256S("0x000000000000048b95347e83192f69cf0366076336c639f9b7228e9ba171342e")},
{216116, uint256S("0x00000000000001b4f4b433e81ee46494af945cf96014816a4e2370f11b23df4e")},
{225430, uint256S("0x00000000000001c108384350f74090433e7fcf79a606b8e797f065b130575932")},
{250000, uint256S("0x000000000000003887df1f29024b06fc2200b55f8af8f35453d7be294df2d214")},
{279000, uint256S("0x0000000000000001ae8c72a0b0c301f67e3afca10e819efa9041e458e9bd7e40")},
{295000, uint256S("0x00000000000000004d9b4ef50f0f9d686fd69db2e03af35a100370c64632a983")},
{640650, uint256S("0x000000059ec8884fa4fbbdbe46c09cfb4ecba281dfa2351a05084e817c1200ae")},
}
};
chainTxData = ChainTxData{
// Data from rpc: getchaintxstats 4096 000000000c5dddd832b53e78d72f9f0d656d006bdf71a3de396e946e0799f197
/* nTime */ 1593660032,
/* nTxCount */ 266775998,
/* dTxRate */ 0.0072359
};
vPreminePubkeys = {
{ "02babc391be409351aa993deb10083a0a852b79b36df80954341c74522fb298c21", "0267c59df7a3653d9cef3819cfb5a2a35d3f6217f522c307f05ab5714c1c738c44", "02532558057b56b76349b6a3a8c9d39547e482869fcd9556767c83523aa02fb358", "0214a27d6aa62e4aa14ebaf4682cd90e629bcb4ab18eccfed150dbed0b447bbafa", "038f4a7a5524929642e5688c5cecac4b5c7806a6520316f53ba71dbbdb3e181037", "02bb4feeb207779054aacb49b61d325f46e0b98afb301a66dc32ca3e7484f419ef" },
{ "0395a0b7b7fed3a09ad9a526f58955b2e6c6349678fc319fad79822d7b5727a189", "03b2c38ed954facb5adce1a8621ffb559601490125ba09e65d5e3e667a2adc6fdc", "03fd383f5b8ccb9aaedd2b5924f7198dacd2f6d38b50460b03194204344c5e8f2c", "02aa0a0aa08142f9bd3c2e794a292c68df730173bce2e6a69c2810e445df7ed363", "0291a043b4375bbde4e5e3738957ae5e83c8eecab70b90f55b3dc0b547a1ac19cf", "031f4d880c835238b97625d20579940e965a833c30fb8f643bd5e6a43ef37e0ee7" },
{ "0328571bff52ab95267ca51d7fe2689599cb73300a3847d6440ecd9882166e1ed7", "0301411004164e5798db00227c1a8e87c4e0a0e3425057b1c650a5e88252b08035", "0399e7477f01d40af05a417cfbf98c179e0c92778fb731e7f6422036c4918cb0d1", "02f136e4181d63ec1d3f587513a21427c6ec5d5c36364f20abdf4f751ce21e485f", "02fd5c856002b77384599ea9cd6ceae515223809e6f1b63d45be5456b409d2be8e", "02bf748f7e7291e9061f32bc72ea52a325154dadddb98348307838565fc8855f4c" },
{ "03d1198ed4659a53bbc5fd945893545ee5efda9c20d014b87c138f658ed61d9cd2", "03d558f9dd313bf6a4ebbc4f3c9209f758e21e99c1d3fb3a2fc40517f4de01d55c", "03e185dd9289d6f72ed579b2db9474e033361902cb5c60817f757652fd86910677", "023c4975dbb840e91a0047496412a8f69eaf61571d24a552713d585337bed26101", "032c8735d320b6219cb398999345fea9e6b234e5f7d9f96c6a2758658d261acd6d", "029860998228d746ec5ccdc47b451b3143c05f9e26b7b1a491d64429dcac3feb0e" },
};
}
};
/**
* Testnet (v3)
*/
class CTestNetParams : public CChainParams {
public:
CTestNetParams() {
strNetworkID = CBaseChainParams::TESTNET;
consensus.signet_blocks = false;
consensus.signet_challenge.clear();
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP16Exception = uint256S("0x00000000dd30457c001f4095d208cc1296b0eed002427aa599874af7a432b105");
consensus.BIP34Height = -1;
consensus.BIP34Hash = uint256();
consensus.BIP65Height = -1;
consensus.BIP66Height = -1;
consensus.CSVHeight = 770112; // 00000000025e930139bac5c6c31a403776da130831ab85be56578f3fa75369bb
consensus.SegwitHeight = 834624; // 00000000002b980fcd729daaa248fd9316a5200e9b367f4ff2c42453e84201ca
consensus.MinBIP9WarningHeight = 836640; // segwit activation height + miner confirmation window
consensus.BTGHeight = 1;
consensus.BTGZawyLWMAHeight = -1; // Activated on testnet
consensus.BTGEquihashForkHeight = 14300;
consensus.BTGPremineWindow = 50;
consensus.BTGPremineEnforceWhitelist = false;
consensus.powLimit = uint256S("0007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitStart = uint256S("0007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitLegacy = uint256S("00000000ffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nDigishieldAveragingWindow = 30;
assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nDigishieldAveragingWindow);
consensus.nDigishieldMaxAdjustDown = 32;
consensus.nDigishieldMaxAdjustUp = 16;
consensus.nZawyLwmaAveragingWindow = 45;
consensus.nZawyLwmaAdjustedWeightLegacy = 13632;
consensus.nZawyLwmaAdjustedWeight = 13772;
consensus.nZawyLwmaMinDenominatorLegacy = 3;
consensus.nZawyLwmaMinDenominator = 10;
consensus.bZawyLwmaSolvetimeLimitation = false;
consensus.BTGMaxFutureBlockTime = 7 * 10 * 60; // 70 mins
consensus.nPowTargetTimespanLegacy = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespanLegacy / nPowTargetSpacing
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008
// Deployment of Taproot (BIPs 340-342)
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = 1619222400; // April 24th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = 1628640000; // August 11th, 2021
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000000000018469bad0");
// By default assume that the signatures in ancestors of this block are valid.
consensus.defaultAssumeValid = uint256S("0x000042e99d907f6a06dfc3e09499d6abe7cec3f665bffb2e297f5242ff948e60"); //38500
pchMessageStart[0] = 0xe2;
pchMessageStart[1] = 0x48;
pchMessageStart[2] = 0x6e;
pchMessageStart[3] = 0x45;
nDefaultPort = 18338;
nPruneAfterHeight = 1000;
m_assumed_blockchain_size = 40;
m_assumed_chain_state_size = 2;
const size_t N = 200, K = 9;
const size_t N2 = 144, K2 = 5;
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N, K));
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N2, K2));
nEquihashN = N;
nEquihashK = K;
nEquihashNnew = N2;
nEquihashKnew = K2;
genesis = CreateGenesisBlock(1516123516, 0x56bd5142, 0x1d00ffff, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash(consensus);
assert(consensus.hashGenesisBlock == uint256S("0x00000000e0781ebe24b91eedc293adfea2f557b53ec379e78959de3853e6f9f6"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
vFixedSeeds.clear();
vSeeds.clear();
// nodes with support for servicebits filtering should be at the top
vSeeds.emplace_back("eu-test-dnsseed.bitcoingold-official.org");
vSeeds.emplace_back("test-dnsseed.bitcoingold.org");
vSeeds.emplace_back("test-dnsseed.bitcoingold.dev");
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
bech32_hrp = "tbtg";
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
fDefaultConsistencyChecks = false;
fRequireStandard = false;
m_is_test_chain = true;
m_is_mockable_chain = false;
checkpointData = {
{
{0, uint256S("0x00000000e0781ebe24b91eedc293adfea2f557b53ec379e78959de3853e6f9f6")},
}
};
chainTxData = ChainTxData{
0,
0,
0
};
}
};
/**
* Signet
*/
class SigNetParams : public CChainParams {
public:
explicit SigNetParams(const ArgsManager& args) {
std::vector<uint8_t> bin;
vSeeds.clear();
if (!args.IsArgSet("-signetchallenge")) {
bin = ParseHex("512103ad5e0edad18cb1f0fc0d28a3d4f1f3e445640337489abb10404f2d1e086be430210359ef5021964fe22d6f8e05b2463c9540ce96883fe3b278760f048f5189f2e6c452ae");
vSeeds.emplace_back("178.128.221.177");
vSeeds.emplace_back("2a01:7c8:d005:390::5");
vSeeds.emplace_back("v7ajjeirttkbnt32wpy3c6w3emwnfr3fkla7hpxcfokr3ysd3kqtzmqd.onion:38333");
consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000000019fd16269a");
consensus.defaultAssumeValid = uint256S("0x0000002a1de0f46379358c1fd09906f7ac59adf3712323ed90eb59e4c183c020"); // 9434
m_assumed_blockchain_size = 1;
m_assumed_chain_state_size = 0;
chainTxData = ChainTxData{
// Data from RPC: getchaintxstats 4096 0000002a1de0f46379358c1fd09906f7ac59adf3712323ed90eb59e4c183c020
/* nTime */ 1603986000,
/* nTxCount */ 9582,
/* dTxRate */ 0.00159272030651341,
};
} else {
const auto signet_challenge = args.GetArgs("-signetchallenge");
if (signet_challenge.size() != 1) {
throw std::runtime_error(strprintf("%s: -signetchallenge cannot be multiple values.", __func__));
}
bin = ParseHex(signet_challenge[0]);
consensus.nMinimumChainWork = uint256{};
consensus.defaultAssumeValid = uint256{};
m_assumed_blockchain_size = 0;
m_assumed_chain_state_size = 0;
chainTxData = ChainTxData{
0,
0,
0,
};
LogPrintf("Signet with challenge %s\n", signet_challenge[0]);
}
if (args.IsArgSet("-signetseednode")) {
vSeeds = args.GetArgs("-signetseednode");
}
strNetworkID = CBaseChainParams::SIGNET;
consensus.signet_blocks = true;
consensus.signet_challenge.assign(bin.begin(), bin.end());
consensus.nSubsidyHalvingInterval = 210000;
consensus.BIP16Exception = uint256{};
consensus.BIP34Height = 1;
consensus.BIP34Hash = uint256{};
consensus.BIP65Height = 1;
consensus.BIP66Height = 1;
consensus.BTGHeight = 491407; // Around 10/25/2017 12:00 UTC
consensus.BTGPremineWindow = 8000;
consensus.BTGZawyLWMAHeight = 536200; // Around 07/01/2018
consensus.BTGEquihashForkHeight = 536200; // Around 07/01/2018
consensus.BTGPremineEnforceWhitelist = true;
consensus.powLimit = uint256S("0007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitStart = uint256S("0007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitLegacy = uint256S("00000377ae000000000000000000000000000000000000000000000000000000");
consensus.nDigishieldAveragingWindow = 30;
assert(maxUint/UintToArith256(consensus.powLimit) >= consensus.nDigishieldAveragingWindow);
consensus.nDigishieldMaxAdjustDown = 32;
consensus.nDigishieldMaxAdjustUp = 16;
consensus.nZawyLwmaAveragingWindow = 45;
consensus.nZawyLwmaAdjustedWeightLegacy = 13632;
consensus.nZawyLwmaAdjustedWeight = 13772;
consensus.nZawyLwmaMinDenominatorLegacy = 3;
consensus.nZawyLwmaMinDenominator = 10;
consensus.bZawyLwmaSolvetimeLimitation = false;
consensus.BTGMaxFutureBlockTime = 7 * 10 * 60; // 70 mins
consensus.CSVHeight = 1;
consensus.SegwitHeight = 1;
consensus.nPowTargetTimespanLegacy = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = false;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1815; // 90% of 2016
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing
consensus.MinBIP9WarningHeight = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = Consensus::BIP9Deployment::NEVER_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
// Activation of Taproot (BIPs 340-342)
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
// message start is defined as the first 4 bytes of the sha256d of the block script
CHashWriter h(SER_DISK, 0);
h << consensus.signet_challenge;
uint256 hash = h.GetHash();
memcpy(pchMessageStart, hash.begin(), 4);
nDefaultPort = 38338;
nPruneAfterHeight = 1000;
const size_t N = 200, K = 9;
const size_t N2 = 144, K2 = 5;
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N, K));
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N2, K2));
nEquihashN = N;
nEquihashK = K;
nEquihashNnew = N2;
nEquihashKnew = K2;
genesis = CreateGenesisBlock(1598918400, 52613770, 0x1e0377ae, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash(consensus);
assert(consensus.hashGenesisBlock == uint256S("0x00000008819873e925422c1ff0f99f7cc9bbb232af63a077a480a3633bee1ef6"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
vFixedSeeds.clear();
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
bech32_hrp = "tbtg";
fDefaultConsistencyChecks = false;
fRequireStandard = true;
m_is_test_chain = true;
m_is_mockable_chain = false;
}
};
/**
* Regression test
*/
class CRegTestParams : public CChainParams {
public:
explicit CRegTestParams(const ArgsManager& args) {
strNetworkID = CBaseChainParams::REGTEST;
consensus.signet_blocks = false;
consensus.signet_challenge.clear();
consensus.nSubsidyHalvingInterval = 150;
consensus.BIP16Exception = uint256();
consensus.BIP34Height = 500; // BIP34 activated on regtest (Used in functional tests)
consensus.BIP34Hash = uint256();
consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in functional tests)
consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in functional tests)
consensus.CSVHeight = 432; // CSV activated on regtest (Used in rpc activation tests)
consensus.SegwitHeight = 0; // SEGWIT is always activated on regtest unless overridden
consensus.MinBIP9WarningHeight = 0;
consensus.BTGHeight = 2000;
consensus.BTGZawyLWMAHeight = -1; // Activated on regtest
consensus.BTGEquihashForkHeight = 2001;
consensus.BTGPremineWindow = 10;
consensus.BTGPremineEnforceWhitelist = false;
consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitStart = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.powLimitLegacy = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nDigishieldAveragingWindow = 30;
consensus.nDigishieldMaxAdjustDown = 32;
consensus.nDigishieldMaxAdjustUp = 16;
consensus.nZawyLwmaAveragingWindow = 45;
consensus.nZawyLwmaAdjustedWeightLegacy = 13772;
consensus.nZawyLwmaAdjustedWeight = 13772;
consensus.nZawyLwmaMinDenominatorLegacy = 10;
consensus.nZawyLwmaMinDenominator = 10;
consensus.bZawyLwmaSolvetimeLimitation = true;
consensus.BTGMaxFutureBlockTime = 7 * 10 * 60; // 70 mins
consensus.nPowTargetTimespanLegacy = 14 * 24 * 60 * 60; // two weeks
consensus.nPowTargetSpacing = 10 * 60;
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = true;
consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains
consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016)
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].min_activation_height = 0; // No activation delay
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].bit = 2;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_TAPROOT].min_activation_height = 0; // No activation delay
consensus.nMinimumChainWork = uint256{};
consensus.defaultAssumeValid = uint256{};
pchMessageStart[0] = 0xfa;
pchMessageStart[1] = 0xbf;
pchMessageStart[2] = 0xb5;
pchMessageStart[3] = 0xda;
nDefaultPort = 18444;
nPruneAfterHeight = 1000;
m_assumed_blockchain_size = 0;
m_assumed_chain_state_size = 0;
UpdateActivationParametersFromArgs(args);
const size_t N = 48, K = 5;
const size_t N2 = 96, K2 = 5;
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N, K));
BOOST_STATIC_ASSERT(equihash_parameters_acceptable(N2, K2));
nEquihashN = N;
nEquihashK = K;
nEquihashNnew = N2;
nEquihashKnew = K2;
genesis = CreateGenesisBlock(1296688602, 2, 0x207fffff, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash(consensus);
assert(consensus.hashGenesisBlock == uint256S("0x0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206"));
assert(genesis.hashMerkleRoot == uint256S("0x4a5e1e4baab89f3a32518a88c31bc87f618f76673e2cc77ab2127b7afdeda33b"));
vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
vSeeds.clear(); //!< Regtest mode doesn't have any DNS seeds.
fDefaultConsistencyChecks = true;
fRequireStandard = true;
m_is_test_chain = true;
m_is_mockable_chain = true;
checkpointData = {
{
{0, uint256S("0f9188f13cb7b2c71f2a335e3a4fc328bf5beb436012afca590b1a11466e2206")},
}
};
chainTxData = ChainTxData{
0,
0,
0
};
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239);
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94};
bech32_hrp = "btgrt";
}
/**
* Allows modifying the Version Bits regtest parameters.
*/
void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout, int min_activation_height)
{
consensus.vDeployments[d].nStartTime = nStartTime;
consensus.vDeployments[d].nTimeout = nTimeout;
consensus.vDeployments[d].min_activation_height = min_activation_height;
}
void UpdateActivationParametersFromArgs(const ArgsManager& args);
};
void CRegTestParams::UpdateActivationParametersFromArgs(const ArgsManager& args)
{
if (args.IsArgSet("-segwitheight")) {
int64_t height = args.GetArg("-segwitheight", consensus.SegwitHeight);
if (height < -1 || height >= std::numeric_limits<int>::max()) {
throw std::runtime_error(strprintf("Activation height %ld for segwit is out of valid range. Use -1 to disable segwit.", height));
} else if (height == -1) {
LogPrintf("Segwit disabled for testing\n");
height = std::numeric_limits<int>::max();
}
consensus.SegwitHeight = static_cast<int>(height);
}
if (!args.IsArgSet("-vbparams")) return;
for (const std::string& strDeployment : args.GetArgs("-vbparams")) {
std::vector<std::string> vDeploymentParams;
boost::split(vDeploymentParams, strDeployment, boost::is_any_of(":"));
if (vDeploymentParams.size() < 3 || 4 < vDeploymentParams.size()) {
throw std::runtime_error("Version bits parameters malformed, expecting deployment:start:end[:min_activation_height]");
}
int64_t nStartTime, nTimeout;
int min_activation_height = 0;
if (!ParseInt64(vDeploymentParams[1], &nStartTime)) {
throw std::runtime_error(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1]));
}
if (!ParseInt64(vDeploymentParams[2], &nTimeout)) {
throw std::runtime_error(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2]));
}
if (vDeploymentParams.size() >= 4 && !ParseInt32(vDeploymentParams[3], &min_activation_height)) {
throw std::runtime_error(strprintf("Invalid min_activation_height (%s)", vDeploymentParams[3]));
}
bool found = false;
for (int j=0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
if (vDeploymentParams[0] == VersionBitsDeploymentInfo[j].name) {
UpdateVersionBitsParameters(Consensus::DeploymentPos(j), nStartTime, nTimeout, min_activation_height);
found = true;
LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld, min_activation_height=%d\n", vDeploymentParams[0], nStartTime, nTimeout, min_activation_height);
break;
}
}
if (!found) {
throw std::runtime_error(strprintf("Invalid deployment (%s)", vDeploymentParams[0]));
}
}
}
static std::unique_ptr<const CChainParams> globalChainParams;
const CChainParams &Params() {
assert(globalChainParams);
return *globalChainParams;
}
std::unique_ptr<const CChainParams> CreateChainParams(const ArgsManager& args, const std::string& chain)
{
if (chain == CBaseChainParams::MAIN) {
return std::unique_ptr<CChainParams>(new CMainParams());
} else if (chain == CBaseChainParams::TESTNET) {
return std::unique_ptr<CChainParams>(new CTestNetParams());
} else if (chain == CBaseChainParams::SIGNET) {
return std::unique_ptr<CChainParams>(new SigNetParams(args));
} else if (chain == CBaseChainParams::REGTEST) {
return std::unique_ptr<CChainParams>(new CRegTestParams(args));
}
throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
}
void SelectParams(const std::string& network)
{
SelectBaseParams(network);
globalChainParams = CreateChainParams(gArgs, network);
}
static CScript CltvMultiSigScript(const std::vector<std::string>& pubkeys, uint32_t lock_time) {
assert(pubkeys.size() == 6);
CScript redeem_script;
if (lock_time > 0) {
redeem_script << lock_time << OP_CHECKLOCKTIMEVERIFY << OP_DROP;
}
redeem_script << 4;
for (const std::string& pubkey : pubkeys) {
redeem_script << ToByteVector(ParseHex(pubkey));
}
redeem_script << 6 << OP_CHECKMULTISIG;
return redeem_script;
}
unsigned int CChainParams::EquihashSolutionWidth(int height) const
{
return EhSolutionWidth(EquihashN(height), EquihashK(height));
}
bool CChainParams::IsPremineAddressScript(const CScript& scriptPubKey, uint32_t height) const {
static const int LOCK_TIME = 3 * 365 * 24 * 3600; // 3 years
static const int LOCK_STAGES = 3 * 12; // Every month for 3 years
assert((uint32_t)consensus.BTGHeight <= height &&
height < (uint32_t)(consensus.BTGHeight + consensus.BTGPremineWindow));
int block = height - consensus.BTGHeight;
int num_unlocked = consensus.BTGPremineWindow * 40 / 100; // 40% unlocked.
int num_locked = consensus.BTGPremineWindow - num_unlocked; // 60% time-locked.
int stage_lock_time = LOCK_TIME / LOCK_STAGES / consensus.nPowTargetSpacing;
int stage_block_height = num_locked / LOCK_STAGES;
const std::vector<std::string> pubkeys = vPreminePubkeys[block % vPreminePubkeys.size()]; // Round robin.
CScript redeem_script;
if (block < num_unlocked) {
redeem_script = CltvMultiSigScript(pubkeys, 0);
} else {
int locked_block = block - num_unlocked;
int stage = locked_block / stage_block_height;
int lock_time = consensus.BTGHeight + stage_lock_time * (1 + stage);
redeem_script = CltvMultiSigScript(pubkeys, lock_time);
}
CScript target_scriptPubkey = GetScriptForDestination(ScriptHash(redeem_script));
return scriptPubKey == target_scriptPubkey;
}