Definition ∞ Sequencing rules are predefined protocols or algorithms that dictate the order in which transactions or operations are processed and recorded within a system, such as a blockchain. These rules ensure consistency, prevent conflicts, and establish a canonical history of events. They are critical for maintaining the integrity and security of distributed ledgers. The precise ordering prevents issues like double-spending.
Context ∞ In blockchain technology, sequencing rules are fundamental to consensus mechanisms and the prevention of front-running or other forms of transaction manipulation. News often highlights innovations or debates surrounding transaction ordering, particularly in decentralized finance, where miner extractable value MEV is a significant concern. The fairness and efficiency of these rules are central to network performance and user experience.
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