def main(): blockchain = Blockchain() database = ["hello", "goodbye", "test", "DATA here", "test2"] num = 0 for data in database: num += 1 blockchain.mine(Block(num, data=data)) for block in blockchain.chain: print(block) print(blockchain.isValid()) # i try to change data in blck number 2 without valid nonce blockchain.chain[2].data = "NEW DATA" blockchain.mine(blockchain.chain[2]) print(blockchain.isValid())
def main(): blockchain = Blockchain() database = ["Hello", "There", "How you doing?"] num = 0 for data in database: num += 1 blockchain.mining(Block(data, num)) for block in blockchain.chain: print(block) print(blockchain.isValid())