Blockchain Synchronization
Also known as: Node Syncing, Chain Synchronization, Ledger Catch-Up
The process by which nodes download and validate blockchain data to stay updated with the latest network state.
Web3 Infrastructure
Intermediate level
Blockchain synchronization is the process by which new or inactive nodes catch up with the latest state of the network by downloading and verifying all blocks from genesis to the current block height. This ensures consensus and allows nodes to fully participate in validation or querying. Full sync includes all data, while fast or light sync methods use only headers or trusted snapshots. Synchronization is vital for security and decentralization, and affects startup time, resource requirements, and node availability in networks like Ethereum and Bitcoin.