miner-dapp-wasm/blockchain/block/doHash

block.go

func (blk *Block) doHash() {
	type toBeHashed struct {
		id            uint64
		lastBlockHash [32]byte
		nonce         uint64
		payload       Transaction
		difficulty    uint8
		timestamp     uint64
	}
	h := sha256.New()
	var blkToBeHashed = toBeHashed{
		blk.id, blk.lastBlockHash,
		blk.nonce, blk.payload,
		blk.difficulty, blk.timestamp}
	byteBlk := fmt.Sprintf("%v", blkToBeHashed)
	h.Write([]byte(byteBlk))
	// transferring bits from sum into blk.hash
	copy(blk.hash[:], h.Sum(nil))
}