ETH源码阅读(Block的Header和Body)

以太坊的Block数据分成Header和Body，分开存储于db.

Header的数据结构：

// Header represents a block header in the Ethereum blockchain.
type Header struct {
        //父区块hash
    ParentHash  common.Hash    `json:"parentHash"       gencodec:"required"`
    
        UncleHash   common.Hash    `json:"sha3Uncles"       gencodec:"required"`

        //打包区块的地址
    Coinbase    common.Address `json:"miner"            gencodec:"required"`
        
        Root        common.Hash    `json:"stateRoot"        gencodec:"required"`
    TxHash      common.Hash    `json:"transactionsRoot" gencodec:"required"`
    ReceiptHash common.Hash    `json:"receiptsRoot"     gencodec:"required"`
    Bloom       Bloom          `json:"logsBloom"        gencodec:"required"`
    //难度
        Difficulty  *big.Int       `json:"difficulty"       gencodec:"required"`
        //区块高度
    Number      *big.Int       `json:"number"           gencodec:"required"`
        
    GasLimit    uint64         `json:"gasLimit"         gencodec:"required"`
    GasUsed     uint64         `json:"gasUsed"          gencodec:"required"`
    
        Time        *big.Int       `json:"timestamp"        gencodec:"required"`
    
        Extra       []byte         `json:"extraData"        gencodec:"required"`
        
        //pow共识最终计算出的比Difficulty小的hash
        //digest, result := hashimotoFull(dataset.dataset, hash, nonce)
    MixDigest   common.Hash    `json:"mixHash"          gencodec:"required"`
        
        //pow共识算法计算出的值
    Nonce       BlockNonce     `json:"nonce"            gencodec:"required"`
}

Body的数据结构：

// Body is a simple (mutable, non-safe) data container for storing and moving
// a block's data contents (transactions and uncles) together.
type Body struct {
    Transactions []*Transaction
    Uncles       []*Header
}