Hash
The short, fixed-length fingerprint a hash function produces from any data. Changing one bit of the input changes the whole output, and the input cannot be worked out from it. Bitcoin uses SHA-256 and Ethereum uses Keccak-256.
The short, fixed-length fingerprint a hash function produces from any data. Changing one bit of the input changes the whole output, and the input cannot be worked out from it. Bitcoin uses SHA-256 and Ethereum uses Keccak-256.