Gwyneth is a new based rollup, meaning transactions are sequenced by L1 validators with blocks constructed by L1 builders. It is a synchronously composable “booster rollup,” allowing for seamless access to the L1's state with no fragmentation. Gwyneth was built using Taiko's prover technology and will eventually utilize zkVMs like SP1 and Risc0 for transaction execution.
Taiko Labs' Gwyneth is designed to improve L2 block building profitability and timeliness using preconfirmations. Its approach addresses decentralized proposal challenges like profitability issues and timing games. The design suggests a just-in-time market for exchanging L1/L2 block space, execution tickets, and leader elections.