The mainnet confirmation layer of Espresso, a blockchain project featuring cross-chain composability, is currently active.
Five testnets, two years of research and development, and integration plans with over 20 chains precede the launch.
The Espresso Systems team mentioned in the statement that this milestone represents a major step forward in their efforts to “make Ethereum composable again.”
Espresso points out that rollups can achieve synchronous composability because its confirmation layer offers the framework for chains to communicate swiftly and consistently.
Through the viewing of each other’s transaction data, this layer allows two composable chains to validate their respective state changes. Espresso wrote:
To achieve synchronous composability, chains need a shared source of truth they can use to quickly and reliably confirm the state transitions of other chains”
The Espresso team claims that a number of ecosystem partners are ready to include the confirmation layer. Bridges, chains, stack providers, and Rollups-as-a-service (RaaS) platforms are some examples of these partners.
The modular zero-knowledge stack chains Airchains, the Linux-powered rollups platform Cartesi, and the developers of Arbitrum, OffChain Labs, are examples of specific partners.
Other partners include AltLayer, a RaaS provider, and the bridge platform Across Protocol. Espresso intends to decentralize the node operator set, onboard launch partners, and progressively deploy functionality as part of its phased mainnet rollout.
A roadmap lists the key elements that will be released in 2025. The Espresso team, led by VC platform a16z Crypto, received $28 million in a Series B investment in March.
