EigenLayerEthereum Foundation launches evm.fast challenge to bound block verification cost
The Ethereum Foundation has opened evm.fast, an open challenge asking contributors to prove — with a machine-checked proof in Lean 4 or Rocq — a finite worst-case limit on how much computation it takes to verify an Ethereum block on a 64-bit RISC-V model. Today no one can prove a uniform ceiling, so the baseline score is infinity; the first finite, formally verified bound beats the record, and the real contest is then tightening that bound (measured as K, a certified upper limit on execution steps) toward a cost provers can plan around.
The model is compiled via Flapjack, a Lean 4 adaptation of the Pancake compiler, and startup steps count toward the total. Eigen Labs' EigenCloud account amplified the launch, arguing verifiable compute only works when the cost of checking is countable, with the challenge's repos living under Layr-Labs on GitHub.
- A certified worst-case bound would give real-time zk provers a math-backed budget and harden block verification against denial-of-service.
- No monetary prizes, deadlines, or submission platforms were announced at launch.
EigenLayer
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Synergy in the Blockchain Space
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