chainparams.cpp

1. 區(qū)塊hash值計(jì)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(chuàng)建genesis區(qū)塊

將 “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks” 寫(xiě)入到coinbase交易的附加數(shù)據(jù)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(jié)

以上是生活随笔為你收集整理的Bitcoin 中的挖矿算法（4） 产生genesis区块的全部?jī)?nèi)容，希望文章能夠幫你解決所遇到的問(wèn)題。

如果覺(jué)得生活随笔網(wǎng)站內(nèi)容還不錯(cuò)，歡迎將生活随笔推薦給好友。