Inside the Block Header: How Bitcoin Records Work
Inside the Block Header, Bitcoin records key data – timestamps, previous-hash links and the Merkle root – that let nodes verify transactions and secure an immutable, verifiable chain.
merkle root
Block Header Explained: How Bitcoin Ensures Integrity
Block headers are Bitcoin’s compact blueprints-timestamps, previous hash, Merkle root and nonce-that anchor transactions, preserve integrity and enable trustless verification across the distributed ledger.