chainparams.cpp

1. 區塊hash值計算

uint256 CBlockHeader::GetHash() const {return SerializeHash(*this); }/** Compute the 256-bit hash of an object's serialization. */ template<typename T> uint256 SerializeHash(const T& obj, int nType=SER_GETHASH,int nVersion=PROTOCOL_VERSION) {CHashWriter ss(nType, nVersion);ss << obj;return ss.GetHash(); }

2. 創建genesis區塊

將 “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks” 寫入到coinbase交易的附加數據中.

static CBlock CreateCustomGenesisBlock(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(STR_OUTPUT_SCRIPT_GENESIS)<< OP_CHECKSIG;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; }

總結

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