Technology Blockchain Explained: How Blocks, Cryptographic Hashes, and Decentralization Work Together by Anika Shah - Technology April 22, 2026 by Anika Shah - Technology April 22, 2026 What Is a Blockchain? A blockchain is a distributed ledger with growing lists of records (blocks) that are securely linked together via cryptographic hashes. Each block contains a cryptographic hash … 0 FacebookTwitterPinterestEmail