EIP Radar
@ 1a086d5 ·
EIP-8390

Remove the Sync Committee

Remove the onchain Altair sync committee and its rewards, superseded by offchain ZK proofs

DraftMerge

Status history

  1. Draft22 Aug 2026

Abstract

Remove the sync committee from the consensus layer, and with it the Altair light client protocol, which depends on it entirely. SYNC_REWARD_WEIGHT goes too, so consensus issuance falls by 2/64. The sync committee exists because a light client could not verify the whole validator set. ZK proving has since made that verification practical, so the sample is no longer needed.

Created
22 Aug 2026
Authors
Lion
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