Mempool Sanitization

Mempool sanitization is the process of filtering or obfuscating pending transactions before they are confirmed on a blockchain to prevent malicious actors from identifying profitable opportunities. In public blockchains, the mempool is a waiting area for unconfirmed transactions that bots constantly monitor to extract value.

Sanitization involves techniques like private transaction relaying or batching to ensure that the order flow remains opaque until inclusion in a block. By reducing the visibility of these transactions, protocols can mitigate the risks associated with transaction ordering manipulation.

This practice is essential for maintaining market integrity and protecting users from automated extraction strategies. It effectively acts as a buffer between the user and the adversarial environment of the mempool.