Pre-Confirmation Services
Pre-confirmation services are protocols that provide users with cryptographic guarantees that their transactions will be included in a future rollup batch. These services act as a layer between the user and the sequencer, offering near-instant finality for an additional fee.
By providing these guarantees, pre-confirmation services significantly improve the user experience by reducing the perceived latency of optimistic rollups. The service providers often take on the risk of transaction failure or censorship, requiring robust economic collateral to back their promises.
This creates a market for speed, where users can choose between slower, cheaper transactions or faster, more expensive ones. These services are becoming increasingly important as the demand for high-frequency trading on layer two platforms grows.
They bridge the gap between optimistic security and centralized-like performance.