How Espresso Powers Arbitrum Chains

Espresso introduces a confirmation layer that enhances the performance and interoperability of Arbitrum chains. By addressing blockchain fragmentation and enabling faster finality, Espresso plays a pivotal role in enabling secure, real-time cross-chain communication within the Arbitrum ecosystem.

Key Ideas

Espresso provides 5-second block finality for Arbitrum chains, compared to Ethereum’s ~15 minutes, while preserving fast preconfirmations and preventing sequencer equivocation.
Integrated chains like RARI Chain, LogX, and AppChain benefit from both technical enhancements and Espresso’s ecosystem growth initiatives, which attract users and liquidity.

Why It Matters?

Espresso could be integrated into Orbit chains via Rollup-as-a-Service providers, enabling the creation of multi-chain applications with real-time, trust-minimized interactions. This opens the door to building advanced DeFi protocols, interoperable games, and other composable systems. From business perspective monetization strategies of those systems could include volume-based fees or liquidity provisioning services tailored to interconnected rollups.