Definition ∞ Block sorting refers to the method by which transactions within a block are arranged before the block is added to the blockchain. This arrangement can be based on various criteria, such as transaction fees, timestamp, or specific protocol rules. The order of transactions can influence their inclusion and processing priority. This ordering impacts transaction execution sequence.
Context ∞ The practice of block sorting is a central element in discussions around miner extractable value (MEV) and transaction ordering attacks. Different sorting mechanisms are explored to minimize unfair advantages and ensure equitable transaction processing. Protocol upgrades often address how blocks are sorted to enhance network fairness and predictability.
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