// old version done by proof of work now func (b *Block) DeriveHash() { // method to create hash based on data and previous info := bytes.Join([][]byte{b.Data, b.PrevHash}, []byte{}) // 2d of data and prev, and empty bytpes hash := sha256.Sum256(info) // change data changes hash otherwise same b.Hash = hash[:] } */.

// moved to blockchain.go // add block to chain func (chain *BlockChain) AddBlock(data string) { // add block prevBlock := chain.Blocks[len(chain.Blocks)-1] new := CreateBlockk(data, prevBlock.Hash) chain.Blocks = append(chain.Blocks, new) } */ Genesis block creations.

setup Genesis block.

// moved to blockchain.go type BlockChain struct { // simple strucutre for chian Blocks []*Block // B in blocks capital makes it public } */.