Sustia

Service

Smart contracts

Solidity / formal verification. Audits and from-scratch.

Typical engagement
6-12 weeks
Capabilities
Solidityformal verificationincident response

Smart-contract design and verification, with the security review baked in from line one.

Solidity, audits and from-scratch builds. Security review is part of the design phase, not a stage we hand off to.

We use formal verification where the property is small and clear: state-machine invariants, access control, fund conservation. For the rest, we lean on careful interfaces, tested edge cases, and a kill-switch that someone can actually find under pressure.

Audits are read-and-test, not read-and-comment. If we recommend a change, we’ve reproduced the issue first.