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cx0der/validate_block.py

Created August 12, 2018 15:23
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Authenticate the Block
Raw
validate_block.py
def is_block_valid(next_block, last_block):
if last_block.index + 1 != int(new_block["index"]):
return False
if last_block.hash != new_block["prev_hash"]:
return False
block_val = str(new_block["index"]) + str(new_block["nonce"]) + new_block["prev_hash"] + \
str(new_block["timestamp"]) + new_block["data"]
if calculate_hash(block_val) != new_block["hash"]:
return False
return True
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