Espresso, a notable blockchain initiative focusing on enhancing cross-chain transactions, announced on Monday that its main product, called the confirmation layer, has officially launched.

According to the team, this confirmation layer will serve as a crucial infrastructure for composability among rollups, allowing different networks to read and trust each other's transaction data blocks. Rollups act as a kind of layer-2 network above a primary blockchain, enabling quicker and more economical transactions.

Specific advantages of this new confirmation layer may encompass:

• Accelerated asset bridging between networks
• Decentralization of a key element in layer-2 blockchains known as the "sequencer"
• An economical approach for networks to store vast amounts of transactional data.

Ben Fisch, CEO of Espresso Systems, noted: “It’s literally a protocol that a rollup sequencer publishes its blocks to, and once published on the confirmation layer, they can’t be changed, even when that chain later settles to Ethereum.”

The confirmation layer is designed to alleviate risks associated with centralized sequencers, which generally represent a single point of failure. By enforcing that the published blocks remain unchanged, systems can ensure the integrity of the transaction data, thus providing enhanced security against potential attacks.

Looking ahead, the confirmation layer plans to connect with prominent rollups in the layer-2 ecosystem, like Arbitrum’s Nitro stack and Optimism’s OP stack. In March, Espresso raised $28 million in funding to support its product development and research initiatives.