package main import ( "fmt" "strconv" ) func (cli *CLI) printChain() { bc := NewBlockchain("") defer bc.db.Close() bci := bc.Iterator() for { block := bci.Next() fmt.Printf("Prev. hash: %x\n", block.PrevBlockHash) fmt.Printf("Hash: %x\n", block.Hash) pow := NewProofOfWork(block) fmt.Printf("PoW: %s\n", strconv.FormatBool(pow.Validate())) for _, tx := range block.Transactions { fmt.Println(tx) } fmt.Println() if len(block.PrevBlockHash) == 0 { break } } }