Interactive diagram of Ethereum's FOCIL slot: four phases from IL broadcast (16 validators, 8 KiB each) through builder assembly to attestation. Toggle 'censoring builder' to watch the fork-choice rule reject a block that drops a valid IL transaction.
38.6% of Ethereum blocks today go through censoring relays. FOCIL (EIP-7805) ends builder exclusion with a 16-validator committee and a 1-out-of-16 honesty assumption hardwired into the fork-choice rule — landing in the Hegota upgrade, late 2026.