Hash vs Hash Function

A fixed-length string of characters produced by applying a cryptographic algorithm to input data, serving as a unique digital fingerprint that blockchain uses to verify data integrity, link blocks, secure transactions, and enable mining through its one-way, deterministic, and collision-resistant properties.

A hash function is a mathematical algorithm that converts any input data of any size into a fixed-length output called a hash, creating a unique digital fingerprint that changes completely if even one character of the input changes.