EIP-7956

Tx Ordering via Block-level Randomness

Decreasing MEV attacks by forcing a deterministic transaction ordering via block-level randomness.

Status history

Draft24 May 2025
Stagnantdate not observed

Abstract

Proposers and builders can currently permute pending transactions arbitrarily, enabling reorder‑driven MEV. This EIP introduces a consensus rule that sorts all transactions inside a block by XOR‑ing each transaction hash with fresh slot randomness. The randomness is unknown until the slot starts, so the order is deterministic once known but unpredictable beforehand. The mechanism significantly…

Created: 24 May 2025
Authors: Aryaethn
Upgrades: Not listed in any upgrade
Requires: EIP-7998
Required by: —

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