Definition ∞ Mempool knowledge refers to the awareness and analysis of pending transactions waiting to be included in a blockchain block. This information includes transaction details, proposed gas fees, and the order in which transactions are likely to be processed. Access to this data allows participants to anticipate and react to market movements.
Context ∞ Mempool knowledge is a critical component of extractable value strategies, where sophisticated actors monitor pending transactions to front-run or sandwich legitimate user orders. News often discusses the ethical implications and technical solutions aimed at reducing the advantages gained from superior mempool visibility.