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418 lines
19 KiB
418 lines
19 KiB
// Copyright (c) 2010 Satoshi Nakamoto |
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// Copyright (c) 2009-2017 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 <arith_uint256.h> |
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#include <chainparams.h> |
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#include <consensus/merkle.h> |
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#include <tinyformat.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 <memory> |
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#include <chainparamsseeds.h> |
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static CBlock CreateGenesisBlock(const char* pszTimestamp, const CScript& genesisOutputScript, uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward) |
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{ |
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CMutableTransaction txNew; |
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txNew.nVersion = 1; |
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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) << std::vector<unsigned char>((const unsigned char*)pszTimestamp, (const unsigned char*)pszTimestamp + strlen(pszTimestamp)); |
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txNew.vout[0].nValue = genesisReward; |
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txNew.vout[0].scriptPubKey = genesisOutputScript; |
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CBlock genesis; |
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genesis.nTime = nTime; |
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genesis.nBits = nBits; |
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genesis.nNonce = nNonce; |
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genesis.nVersion = nVersion; |
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genesis.vtx.push_back(MakeTransactionRef(std::move(txNew))); |
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genesis.hashPrevBlock.SetNull(); |
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genesis.hashMerkleRoot = BlockMerkleRoot(genesis); |
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return genesis; |
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} |
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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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static CBlock CreateGenesisBlock(uint32_t nTime, uint32_t nNonce, uint32_t nBits, int32_t nVersion, const CAmount& genesisReward) |
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{ |
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// JWU TODO: |
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// 1. Change timestamp |
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// 2. Fix coinbase script using segwit. |
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const char* pszTimestamp = "NY Times 05/Oct/2011 Steve Jobs, Apple’s Visionary, Dies at 56"; |
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const CScript genesisOutputScript = CScript() << ParseHex("049451c9ac3be691a4fa375ea69537a46ef374c1f454dbc7c2c6fe27b280f2b979991aadb29358591a1f72c326b537d7fd03e14d4978a1b57486d9e6d2c3645717") << OP_CHECKSIG; |
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return CreateGenesisBlock(pszTimestamp, genesisOutputScript, nTime, nNonce, nBits, nVersion, genesisReward); |
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} |
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void CChainParams::UpdateVersionBitsParameters(Consensus::DeploymentPos d, int64_t nStartTime, int64_t nTimeout) |
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{ |
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consensus.vDeployments[d].nStartTime = nStartTime; |
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consensus.vDeployments[d].nTimeout = nTimeout; |
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} |
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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 = 13440000; |
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consensus.BIP16Height = 1; |
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consensus.BIP34Height = 200; |
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consensus.BIP34Hash = uint256S("0x581cc1e4153a2a367012d3678f0f83f7d62286d84e69ab860804acf3ff2f572b"); // Genesis |
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consensus.BIP65Height = 1; |
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consensus.BIP66Height = 1; |
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consensus.powLimit = uint256S("000fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); |
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consensus.nPowTargetTimespan = 2.0 * 60; // Two minutes |
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consensus.nPowTargetSpacing = 2.0 * 60; // Two minutes |
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consensus.fPowAllowMinDifficultyBlocks = false; |
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consensus.fPowNoRetargeting = false; |
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consensus.nRuleChangeActivationThreshold = 6048; // 75% of 8064 |
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consensus.nMinerConfirmationWindow = 8064; // nPowTargetTimespan / nPowTargetSpacing * 4 |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008 |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008 |
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// Deployment of BIP68, BIP112, and BIP113. |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; |
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//consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1485561600; // January 28, 2017 |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = -1; // Consensus::BIP9Deployment::ALWAYS_ACTIVE |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1517356801; // January 31st, 2018 |
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// Deployment of SegWit (BIP141, BIP143, and BIP147) |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; |
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//consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1485561600; // January 28, 2017 |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = -1; // Consensus::BIP9Deployment::ALWAYS_ACTIVE |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018 |
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// The best chain should have at least this much work. |
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consensus.nMinimumChainWork = uint256S("0x00000000000000000000000000000000000000000000000000000000008a1d70"); |
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// By default assume that the signatures in ancestors of this block are valid. |
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consensus.defaultAssumeValid = uint256S("0x66f49ad85624c33e4fd61aa45c54012509ed4a53308908dd07f56346c7939273"); //1441280 |
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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] = 0x6a; |
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pchMessageStart[1] = 0xc6; |
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pchMessageStart[2] = 0x07; |
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pchMessageStart[3] = 0x9a; |
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nDefaultPort = 9333; |
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nPruneAfterHeight = 100000; |
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genesis = CreateGenesisBlock(1542309299, 14580, 0x1f0ffff0, 1, 50 * COIN); |
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#if 0 |
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arith_uint256 hashTarget = arith_uint256().SetCompact(genesis.nBits); |
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uint256 hashGenesisBlock = uint256S("0x01"); |
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if (genesis.GetHash() != hashGenesisBlock) { |
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printf("recalculating params for mainnet.\n"); |
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printf("old mainnet genesis nonce: %d\n", genesis.nNonce); |
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printf("old mainnet genesis hash: %s\n", hashGenesisBlock.ToString().c_str()); |
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// deliberately empty for loop finds nonce value. |
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for(genesis.nNonce = 500; hashTarget < UintToArith256(genesis.GetPoWHash()); genesis.nNonce++) { |
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printf("nNonce: %d\n\n", genesis.nNonce); |
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} |
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printf("new mainnet genesis merkle root: %s\n", genesis.hashMerkleRoot.ToString().c_str()); |
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printf("new mainnet genesis nonce: %d\n", genesis.nNonce); |
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printf("new mainnet genesis hash: %s\n", genesis.GetHash().ToString().c_str()); |
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} |
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#endif |
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consensus.hashGenesisBlock = genesis.GetHash(); |
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assert(consensus.hashGenesisBlock == uint256S("0xff628438a3818f53874f6b3d125a39edac0ee2557a1d41befeae712f3029b650")); |
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assert(genesis.hashMerkleRoot == uint256S("0x677b0cc3aa49a118484f34bc1b1065e4ecdbd9a895e43d7fcd1c4b74beb492da")); |
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// Note that of those with the service bits flag, most only support a subset of possible options |
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vSeeds.emplace_back("dnsseed.kevacoin.org"); |
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vSeeds.emplace_back("dnsseed.kevacoin.com"); |
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base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,45); // K |
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base58Prefixes[SCRIPT_ADDRESS] = std::vector<unsigned char>(1,5); |
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base58Prefixes[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,70); // V |
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base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,139); // M |
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base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x88, 0xB2, 0x1E}; |
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base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x88, 0xAD, 0xE4}; |
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base58Prefixes[KEVA_NAMESPACE] = std::vector<unsigned char>(1,53); // N |
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bech32_hrp = "kva"; |
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vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_main, pnSeed6_main + ARRAYLEN(pnSeed6_main)); |
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vFixedSeeds.clear(); //JW remove this! |
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fDefaultConsistencyChecks = false; |
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fRequireStandard = true; |
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fMineBlocksOnDemand = false; |
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checkpointData = { |
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{ |
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} |
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}; |
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chainTxData = ChainTxData{ |
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}; |
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} |
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int DefaultCheckNameDB() const |
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{ |
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return -1; |
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} |
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}; |
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/** |
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* Testnet (v3) |
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*/ |
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class CTestNetParams : public CChainParams { |
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public: |
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CTestNetParams() { |
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strNetworkID = "test"; |
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consensus.nSubsidyHalvingInterval = 840000; |
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consensus.BIP16Height = 0; // always enforce P2SH BIP16 on regtest |
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consensus.BIP34Height = 76; |
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consensus.BIP34Hash = uint256S("0x581cc1e4153a2a367012d3678f0f83f7d62286d84e69ab860804acf3ff2f572b"); // Genesis |
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consensus.BIP65Height = 76; // 8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573 |
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consensus.BIP66Height = 76; // 8075c771ed8b495ffd943980a95f702ab34fce3c8c54e379548bda33cc8c0573 |
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consensus.powLimit = uint256S("0007ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); |
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consensus.nPowTargetTimespan = 2.0 * 60; // Two minutes |
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consensus.nPowTargetSpacing = 2.0 * 60; // Two minutes |
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consensus.fPowAllowMinDifficultyBlocks = true; |
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consensus.fPowNoRetargeting = false; |
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consensus.nRuleChangeActivationThreshold = 1512; // 75% for testchains |
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consensus.nMinerConfirmationWindow = 2016; // nPowTargetTimespan / nPowTargetSpacing |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 1199145601; // January 1, 2008 |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = 1230767999; // December 31, 2008 |
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// Deployment of BIP68, BIP112, and BIP113. |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 1483228800; // January 1, 2017 |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = 1517356801; // January 31st, 2018 |
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// Deployment of SegWit (BIP141, BIP143, and BIP147) |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = 1483228800; // January 1, 2017 |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = 1517356801; // January 31st, 2018 |
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// The best chain should have at least this much work. |
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consensus.nMinimumChainWork = uint256S("0x000000000000000000000000000000000000000000000000001df7b5aa1700ce"); |
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// By default assume that the signatures in ancestors of this block are valid. |
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consensus.defaultAssumeValid = uint256S("0x1efb29c8187d5a496a33377941d1df415169c3ce5d8c05d055f25b683ec3f9a3"); //612653 |
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pchMessageStart[0] = 0xfe; |
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pchMessageStart[1] = 0xec; |
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pchMessageStart[2] = 0x65; |
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pchMessageStart[3] = 0xe4; |
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nDefaultPort = 19335; |
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nPruneAfterHeight = 1000; |
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genesis = CreateGenesisBlock(1542309299, 14580, 0x1f0ffff0, 1, 50 * COIN); |
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#if 0 |
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arith_uint256 hashTarget = arith_uint256().SetCompact(genesis.nBits); |
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uint256 hashGenesisBlock = uint256S("0x01"); |
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if (genesis.GetHash() != hashGenesisBlock) { |
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printf("recalculating params for mainnet.\n"); |
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printf("old testnet genesis nonce: %d\n", genesis.nNonce); |
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printf("old testnet genesis hash: %s\n", hashGenesisBlock.ToString().c_str()); |
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// deliberately empty for loop finds nonce value. |
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for(genesis.nNonce = 500; hashTarget < UintToArith256(genesis.GetPoWHash()); genesis.nNonce++) { |
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printf("nNonce: %d\n\n", genesis.nNonce); |
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} |
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printf("new testnet genesis merkle root: %s\n", genesis.hashMerkleRoot.ToString().c_str()); |
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printf("new testnet genesis nonce: %d\n", genesis.nNonce); |
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printf("new testnet genesis hash: %s\n", genesis.GetHash().ToString().c_str()); |
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} |
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#endif |
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consensus.hashGenesisBlock = genesis.GetHash(); |
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assert(consensus.hashGenesisBlock == uint256S("ff628438a3818f53874f6b3d125a39edac0ee2557a1d41befeae712f3029b650")); |
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assert(genesis.hashMerkleRoot == uint256S("677b0cc3aa49a118484f34bc1b1065e4ecdbd9a895e43d7fcd1c4b74beb492da")); |
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vFixedSeeds.clear(); |
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vSeeds.clear(); |
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// nodes with support for servicebits filtering should be at the top |
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vSeeds.emplace_back("testnet-seed.kevacoin.org"); |
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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[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,58); |
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base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239); |
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base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF}; |
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base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94}; |
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base58Prefixes[KEVA_NAMESPACE] = std::vector<unsigned char>(1,53); // N |
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bech32_hrp = "tkva"; |
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vFixedSeeds = std::vector<SeedSpec6>(pnSeed6_test, pnSeed6_test + ARRAYLEN(pnSeed6_test)); |
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fDefaultConsistencyChecks = false; |
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fRequireStandard = false; |
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fMineBlocksOnDemand = false; |
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checkpointData = (CCheckpointData) { |
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{ |
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} |
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}; |
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chainTxData = ChainTxData{ |
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}; |
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} |
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int DefaultCheckNameDB() const |
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{ |
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return -1; |
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} |
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}; |
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/** |
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* Regression test |
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*/ |
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class CRegTestParams : public CChainParams { |
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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.BIP16Height = 0; // always enforce P2SH BIP16 on regtest |
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consensus.BIP34Height = 100000000; // BIP34 has not activated on regtest (far in the future so block v1 are not rejected in tests) |
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consensus.BIP34Hash = uint256(); |
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consensus.BIP65Height = 1351; // BIP65 activated on regtest (Used in rpc activation tests) |
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consensus.BIP66Height = 1251; // BIP66 activated on regtest (Used in rpc activation tests) |
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consensus.powLimit = uint256S("7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"); |
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consensus.nPowTargetTimespan = 3.5 * 24 * 60 * 60; // two weeks |
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consensus.nPowTargetSpacing = 2.5 * 60; |
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consensus.fPowAllowMinDifficultyBlocks = true; |
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consensus.fPowNoRetargeting = true; |
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consensus.nRuleChangeActivationThreshold = 108; // 75% for testchains |
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consensus.nMinerConfirmationWindow = 144; // Faster than normal for regtest (144 instead of 2016) |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].bit = 28; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nStartTime = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_TESTDUMMY].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].bit = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nStartTime = 0; |
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consensus.vDeployments[Consensus::DEPLOYMENT_CSV].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].bit = 1; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nStartTime = Consensus::BIP9Deployment::ALWAYS_ACTIVE; |
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consensus.vDeployments[Consensus::DEPLOYMENT_SEGWIT].nTimeout = Consensus::BIP9Deployment::NO_TIMEOUT; |
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// The best chain should have at least this much work. |
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consensus.nMinimumChainWork = uint256S("0x00"); |
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// By default assume that the signatures in ancestors of this block are valid. |
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consensus.defaultAssumeValid = uint256S("0x00"); |
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pchMessageStart[0] = 0xe3; |
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pchMessageStart[1] = 0x0c; |
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pchMessageStart[2] = 0x1a; |
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pchMessageStart[3] = 0x2f; |
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nDefaultPort = 19444; |
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nPruneAfterHeight = 1000; |
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genesis = CreateGenesisBlock(1296688602, 0, 0x207fffff, 1, 50 * COIN); |
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//JW remove the following code! |
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arith_uint256 hashTarget = arith_uint256().SetCompact(genesis.nBits); |
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uint256 hashGenesisBlock = uint256S("0x01"); |
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if (false && genesis.GetHash() != hashGenesisBlock) { |
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printf("recalculating params for mainnet.\n"); |
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printf("old mainnet genesis nonce: %d\n", genesis.nNonce); |
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printf("old mainnet genesis hash: %s\n", hashGenesisBlock.ToString().c_str()); |
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// deliberately empty for loop finds nonce value. |
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for(genesis.nNonce = 0; hashTarget < UintToArith256(genesis.GetPoWHash()); genesis.nNonce++){} |
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printf("new mainnet genesis merkle root: %s\n", genesis.hashMerkleRoot.ToString().c_str()); |
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printf("new mainnet genesis nonce: %d\n", genesis.nNonce); |
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printf("new mainnet genesis hash: %s\n", genesis.GetHash().ToString().c_str()); |
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} |
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consensus.hashGenesisBlock = genesis.GetHash(); |
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assert(consensus.hashGenesisBlock == uint256S("0x530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9")); |
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assert(genesis.hashMerkleRoot == uint256S("0x97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9")); |
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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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fDefaultConsistencyChecks = true; |
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fRequireStandard = false; |
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fMineBlocksOnDemand = true; |
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checkpointData = { |
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{ |
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{0, uint256S("530827f38f93b43ed12af0b3ad25a288dc02ed74d6d7857862df51fc56c416f9")}, |
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} |
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}; |
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chainTxData = ChainTxData{ |
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0, |
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0, |
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0 |
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}; |
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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[SCRIPT_ADDRESS2] = std::vector<unsigned char>(1,58); |
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base58Prefixes[SECRET_KEY] = std::vector<unsigned char>(1,239); |
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base58Prefixes[EXT_PUBLIC_KEY] = {0x04, 0x35, 0x87, 0xCF}; |
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base58Prefixes[EXT_SECRET_KEY] = {0x04, 0x35, 0x83, 0x94}; |
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base58Prefixes[KEVA_NAMESPACE] = std::vector<unsigned char>(1,53); // N |
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bech32_hrp = "rkva"; |
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} |
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int DefaultCheckNameDB() const |
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{ |
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return 0; |
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} |
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}; |
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static std::unique_ptr<CChainParams> globalChainParams; |
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const CChainParams &Params() { |
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assert(globalChainParams); |
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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); |
|
}
|
|
|