0

As per Bitcoin's documentation, the consensus mechanism in Bitcoin Blockchain is based on PoW. Thus, any miner node successfully computing the hash as per difficulty is eligible to mine a block and also validate all transactions included in the block. Now, once the block is mined, all full nodes check the validity of the computed nonce and also validate the transactions based on the complete history of transaction input and output. My question is that is there any relation between PoW and typical Byzantine Fault Tolerance used as a state replication protocol?

2

PoW achieves the same outcome as BFT. However, the way in which they arrive at the same outcome is different. PoW is for environment where there are untrusted actors. Unlike BFT protocols where it is semi-trusted.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.