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kevacoin/src/chainparams.cpp
Jianping Wu aa97d9938c WIP: getblocktemplate for cn style return.
2019-03-04 22:13:48 -08:00

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// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2017 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <arith_uint256.h>
#include <chainparams.h>
#include <consensus/merkle.h>
#include <tinyformat.h>
#include <util.h>
#include <utilstrencodings.h>
#include <assert.h>
#include <memory>
#include <chainparamsseeds.h>
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 = nNonce;
genesis.nVersion = nVersion;
genesis.vtx.push_back(MakeTransactionRef(std::move(txNew)));
genesis.hashPrevBlock.SetNull();
genesis.hashMerkleRoot = BlockMerkleRoot(genesis);
return genesis;
}
static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward)
{
// RELEASE TODO: change timestamp
const char* pszTimestamp = "The Economist 05/Dec/2018 The US-China trade war is on hold";
const CScript genesisOutputScript = CScript() << ParseHex("a914676a24ba4bfadd458e5245b26fa57f9a62ca185087");
return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward);
}
void CChainParams::UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout)
{
consensus.vDeployments[d].nStartTime = nStartTime;
consensus.vDeployments[d].nTimeout = nTimeout;
}
/**
* Main network
*/
/**
* What makes a good checkpoint block?
* + Is surrounded by blocks with reasonable timestamps
* (no blocks before with a timestamp after, none after with
* timestamp before)
* + Contains no strange transactions
*/
class CMainParams : public CChainParams {
public:
CMainParams() {
strNetworkID = "main";
consensus.nSubsidyHalvingInterval = 1050000; // 210000 * 5
consensus.BIP16Height = 1;
consensus.BIP34Height = 1;
consensus.BIP65Height = 1;
consensus.BIP66Height = 1;
consensus.powLimit = uint256S("000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 2.0 * 60; // Two minutes
consensus.nPowTargetSpacing = 2.0 * 60; // Two minutes
consensus.fPowAllowMinDifficultyBlocks = false;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 6048; // 75% of 8064
consensus.nMinerConfirmationWindow = 8064; // nPowTargetTimespan / nPowTargetSpacing * 4
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 BIP68, BIP112, and BIP113.
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
//consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1485561600; // January 28, 2017
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = -1; // Consensus::BIP9Deployment::ALWAYS_ACTIVE
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1517356801; // January 31st, 2018
// Deployment of SegWit (BIP141, BIP143, and BIP147)
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
//consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1485561600; // January 28, 2017
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = -1; // Consensus::BIP9Deployment::ALWAYS_ACTIVE
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x0000000000000000000000000000000000000000000000000000000000100000");
// By default assume that the signatures in ancestors of this block are valid.
consensus.defaultAssumeValid = uint256S("0x66f49ad85624c33e4fd61aa45c54012509ed4a53308908dd07f56346c7939273");
/**
* 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] = 0x6a;
pchMessageStart[1] = 0xc6;
pchMessageStart[2] = 0x07;
pchMessageStart[3] = 0x9a;
nDefaultPort = 9338;
nPruneAfterHeight = 100000;
const uint32_t genesisBlockReward = 0.00001 * COIN; // A small reward for the core developers :-)
//TODO: target: 0x1e0fffff, update timestampe and nonce.
genesis = CreateGenesisBlock(1543789622, 3302, 0x1f0ffff0, 1, genesisBlockReward);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x77c037d74bc51b535629537c8e9530340ea12272f43d261a0ee59e8f2ad0e6f6"));
assert(genesis.hashMerkleRoot == uint256S("0xb21d4680875c0e472b7dbf3dbab2aaeb2dbbb5fa8b154f978b5ea0706d1fd5b9"));
// Note that of those with the service bits flag, most only support a subset of possible options
vSeeds.emplace_back("dnsseed.kevacoin.org");
vSeeds.emplace_back("dnsseed.honourchat.com");
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,45); // K
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,70); // V
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,139); // M
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
base58Prefixes[KEVA_NAMESPACE] = std::vector<unsigned char>(1,53); // N
bech32_hrp = "kva";
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main));
fDefaultConsistencyChecks = false;
fRequireStandard = true;
fMineBlocksOnDemand = false;
checkpointData = {
{
}
};
chainTxData = ChainTxData{
};
}
int DefaultCheckKevaDB() const
{
return -1;
}
};
/**
* Testnet (v3)
*/
class CTestNetParams : public CChainParams {
public:
CTestNetParams() {
strNetworkID = "test";
consensus.nSubsidyHalvingInterval = 840000;
consensus.BIP16Height = 0; // always enforce P2SH BIP16 on regtest
consensus.BIP34Height = 1;
consensus.BIP34Hash = uint256S("0xa8dbaa66a9266348f6527fe528efea73227d51938befb81d5a1521cebd319c4a"); // Genesis
consensus.BIP65Height = 1;
consensus.BIP66Height = 1;
consensus.powLimit = uint256S("000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 2.0 * 60; // Two minutes
consensus.nPowTargetSpacing = 2.0 * 60; // Two minutes
consensus.fPowAllowMinDifficultyBlocks = true;
consensus.fPowNoRetargeting = false;
consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains
consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / 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 BIP68, BIP112, and BIP113.
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0;
//consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1483228800; // January 1, 2017
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = -1; // Consensus::BIP9Deployment::ALWAYS_ACTIVE
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1517356801; // January 31st, 2018
// Deployment of SegWit (BIP141, BIP143, and BIP147)
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
//consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1483228800; // January 1, 2017
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = -1; // Consensus::BIP9Deployment::ALWAYS_ACTIVE
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x0000000000000000000000000000000000000000000000000000000000100000");
// By default assume that the signatures in ancestors of this block are valid.
consensus.defaultAssumeValid = uint256S("0x1efb29c8187d5a496a33377941d1df415169c3ce5d8c05d055f25b683ec3f9a3");
pchMessageStart[0] = 0xfe;
pchMessageStart[1] = 0xec;
pchMessageStart[2] = 0x65;
pchMessageStart[3] = 0xe4;
nDefaultPort = 19335;
nPruneAfterHeight = 1000;
#if 1
genesis = CreateGenesisBlock(1543789622, 1592, 0x1f0ffff0, 1, 500 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("860764b471430b96f15c145a44fd854f89d3be6f9ae054ef46e4c8473259bae3"));
assert(genesis.hashMerkleRoot == uint256S("3cf6c3b6da3f4058853ee70369ee43d473aca91ae8fc8f44a645beb21c392d80"));
#else
genesis = CreateGenesisBlock(1550900037, 3033, 0x1f0fffff, 1, 500 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("584a067cf7ea6daf30c351a46c6b7403d6fdc0e6e953cf7531d11eb7d834546c"));
assert(genesis.hashMerkleRoot == uint256S("3cf6c3b6da3f4058853ee70369ee43d473aca91ae8fc8f44a645beb21c392d80"));
#endif
vFixedSeeds.clear();
vSeeds.clear();
// nodes with support for servicebits filtering should be at the top
#if 0
vSeeds.emplace_back("testnet-seed.kevacoin.org");
vSeeds.emplace_back("testnet-seed.honourchat.com");
#endif
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,55); // P
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5);
base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,65); // T
base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,58); // 9
base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E};
base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4};
base58Prefixes[KEVA_NAMESPACE] = std::vector<unsigned char>(1,53); // N
bech32_hrp = "tkva";
#if 0
vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test));
#endif
fDefaultConsistencyChecks = false;
fRequireStandard = false;
fMineBlocksOnDemand = false;
checkpointData = (CCheckpointData) {
{
}
};
chainTxData = ChainTxData{
};
}
int DefaultCheckKevaDB() const
{
return -1;
}
};
/**
* Regression test
*/
class CRegTestParams : public CChainParams {
public:
CRegTestParams() {
strNetworkID = "regtest";
consensus.nSubsidyHalvingInterval = 150;
consensus.BIP16Height = 0; // always enforce P2SH BIP16 on regtest
consensus.BIP34Height = 100000000; // BIP34 has not activated on regtest (far in the future so block v1 are not rejected in tests)
consensus.BIP34Hash = uint256();
consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in rpc activation tests)
consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in rpc activation tests)
consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");
consensus.nPowTargetTimespan = 20; // 20 second
consensus.nPowTargetSpacing = 20; // 20 second
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_CSV].bit = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0;
consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE;
consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT;
// The best chain should have at least this much work.
consensus.nMinimumChainWork = uint256S("0x00");
// By default assume that the signatures in ancestors of this block are valid.
consensus.defaultAssumeValid = uint256S("0x00");
pchMessageStart[0] = 0xfa;
pchMessageStart[1] = 0xbf;
pchMessageStart[2] = 0xb5;
pchMessageStart[3] = 0xda;
nDefaultPort = 19444;
nPruneAfterHeight = 1000;
genesis = CreateGenesisBlock(1296688602, 1, 0x207fffff, 1, 50 * COIN);
consensus.hashGenesisBlock = genesis.GetHash();
assert(consensus.hashGenesisBlock == uint256S("0x8353937c85572e556dbec10555b846ddd1a812ab328c9089527f88081e1b5a11"));
assert(genesis.hashMerkleRoot == uint256S("0x13ec98c3307b8e6b67b91c605c7347916a99f9dfde7b5d88365aaef322192314"));
vFixedSeeds.clear(); //!< Regtest mode doesn't have any fixed seeds.
vSeeds.clear(); //!< Regtest mode doesn't have any DNS seeds.
fDefaultConsistencyChecks = true;
fRequireStandard = false;
fMineBlocksOnDemand = true;
checkpointData = {
{
{0, uint256S("530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9")},
}
};
chainTxData = ChainTxData{
0,
0,
0
};
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,111);
base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,196);
base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,58);
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};
base58Prefixes[KEVA_NAMESPACE] = std::vector<unsigned char>(1,53); // N
bech32_hrp = "rkva";
}
int DefaultCheckKevaDB() const
{
return 0;
}
};
static std::unique_ptr<CChainParams> globalChainParams;
const CChainParams &Params() {
assert(globalChainParams);
return *globalChainParams;
}
std::unique_ptr<CChainParams> CreateChainParams(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::REGTEST)
return std::unique_ptr<CChainParams>(new CRegTestParams());
throw std::runtime_error(strprintf("%s: Unknown chain %s.", __func__, chain));
}
void SelectParams(const std::string& network)
{
SelectBaseParams(network);
globalChainParams = CreateChainParams(network);
}
void UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout)
{
globalChainParams->UpdateVersionBitsParameters(d, nStartTime, nTimeout);
}
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