Espresso is providing infrastructure acceleration solutions for the Arbitrum ecosystem. The specific mechanism is as follows: The Arbitrum chain will prioritize sending block data to the Espresso system, and confirmation receipts can be received within seconds. This process brings two direct benefits—significantly faster transaction processing speeds and prevention of malicious block replacement risks. Because once a block is confirmed at the Espresso layer, this established fact cannot be tampered with afterward. For Layer2 application scenarios that require high throughput and strong security guarantees, this pre-confirmation mechanism is considered a practical technical solution.