Block Sequencing

Definition ∞ Block sequencing is the process of arranging blocks of transactions in a specific, agreed-upon order within a blockchain. This ordering determines the chronological progression of the ledger, establishing the definitive state of all digital assets and smart contract executions. Proper block sequencing is essential for preventing double-spending and maintaining the integrity of transaction history across all network participants. It is a core function of consensus protocols, ensuring that every node records the same chain of events.
Context ∞ News often reports on advancements or challenges related to block sequencing in various blockchain protocols, particularly concerning transaction finality and network throughput. Debates often involve proposals for more efficient or decentralized sequencing methods to address scalability limitations and reduce the potential for transaction reordering attacks.