Block vs Hash

A block is a container of data in a blockchain that stores a batch of validated transactions, along with metadata like a timestamp and a reference to the previous block, forming an unbreakable chain of transaction history.

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.