Fork-Choice enforced Inclusion Lists (FOCIL) by Thomas Thiery | Devcon SEA

Thu, Oct 2, 2025, 12:00 AM

A direct consequence of centralized block production is a deterioration of Ethereum's censorship resistance properties. In this talk, we introduce FOCIL, a simple committee-based design improving upon previous inclusion list and co-created block mechanisms. We present the benefits of (1) relying on a committee to address issues related to bribing/extortion attacks, and (2) having attesters enforce the IL as part of the block validity condition to prevent IL equivocation. Speaker(s): Thomas Thiery Skill level: Intermediate Track: Core Protocol Keywords: Design, mechanism Follow us: https://twitter.com/efdevcon, https://twitter.com/ethereum, https://warpcast.com/devcon Learn more about devcon: https://www.devcon.org/ Learn more about ethereum: https://ethereum.org/ Visit the https://archive.devcon.org/ to gain access to the entire library of Devcon talks with the ease of filtering, playlists, personalized suggestions, decentralized access on Swarm, IPFS and more. Devcon is the Ethereum conference for developers, researchers, thinkers, and makers. Devcon SEA was held in Bangkok, Thailand on Nov 12 - Nov 15, 2024. Devcon is organized and presented by the Ethereum Foundation. To find out more, please visit https://ethereum.foundation/