According to Foresight News, blockchain infrastructure company Espresso Systems has announced the launch of Based Espresso, a shared sequencing market for Layer2 chains. Through this market, Layer2 chains will sell block space to shared proposers, including proposers of the Ethereum mainnet EVM itself, who create surplus value by satisfying user intents across multiple chains.
In addition to providing a market for shared proposers, Espresso also offers a decentralized, economically secure finality gadget called Hotshot. Rollups can share Hotshot to achieve faster confirmation speeds than those provided by Ethereum L1. This operates as a BFT (Byzantine Fault Tolerant) proof-of-stake protocol.