Cryptography & Privacy

Hash

Also: Hash Function

A function that turns any input into a fixed-length fingerprint. The same input always gives the same result, a tiny change gives a completely different one, and the process can't be run backward. Blockchains use hashes to link blocks and detect tampering.

General education, not investment, legal or tax advice. Markets and regulation change quickly: where a definition depends on current law or on a recent event, check the latest coverage before relying on it.