We secure smart contracts with
formal verification.

Mathematical proofs that your smart contracts are correct across every possible execution path. Not an audit. A proof.

Trusted by

Audits give opinions. We give guarantees.

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Your contracts are proven correct across every possible input, not just the ones someone thought to test.

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Stronger guarantees at a lower price point.

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3 months of re-verification on every code change, included. Auditors move on after they invoice.

Share your Solidity codebase. We scope the engagement and give you a fixed timeline.

We translate your contracts into Lean 4 specs and formally verify correctness across all execution paths. Runs parallel to your dev cycle.

Machine-checkable proofs, a plain-English report, and a Formally Verified credential for your docs and investor decks.

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Ship a contract change and we re-verify equivalence at no extra cost. Extendable to 12 months for longer coverage.

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If we can't prove you have a bug nor formally verify you don't, we refund. We stake our reputation on every job.

We take 4 protocols per quarter. Formal verification demands deep focus. We'd rather verify fewer contracts well than many poorly.