EIP-8146
Block Access List Sidecars
Propagate block access lists as independent sidecars, off the critical path and ahead of the execution payload
DraftVerge
Status history
- Draft3 Feb 2026
Abstract
This EIP removes the block access list (BAL) introduced in EIP-7928 from the execution payload and propagates it as an independent sidecar on a dedicated gossip topic. Builders commit to the BAL by including keccak256(rlp(BAL)), the same value written to the execution block header, in the ExecutionPayloadBid. Since a BAL is roughly the size of the payload, this halves the block on the critical…