Definition ∞ Transaction Pool Integrity refers to the reliability and trustworthiness of the mempool, or transaction pool, where unconfirmed transactions await inclusion in a blockchain block. Maintaining integrity ensures that transactions are processed fairly, without manipulation or censorship, and that the pool accurately reflects pending network activity. This is vital for the proper functioning of a decentralized ledger.
Context ∞ Ensuring Transaction Pool Integrity is a continuous challenge for blockchain networks, particularly in the face of issues like transaction reordering and front-running. Protocols implement various mechanisms, including fair ordering algorithms and proposer-builder separation, to mitigate these risks. The ongoing efforts to enhance pool integrity are crucial for preventing unfair market practices and maintaining user confidence in transaction finality.