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Evidence-first signing
Most platforms sell convenience, but electronic signatures only matter when an agreement is challenged. Signatas is built backward from the worst-case scenarios to ensure your evidence holds up.
01 · Vendor Lock-in
If your signing platform disappears tomorrow, your documents and their evidence logs go with it. With Signatas, every agreement is sealed into a portable evidence bundle that you control. Open it in five years, on any machine, and verify it offline.
02 · Integrity
A single altered pixel can invalidate a contract. We write every action to an append-only chain. Each record carries the hash of the one before it, meaning any alteration breaks the chain at a visible, provable point.
03 · Assurance
When someone denies signing, a basic email trail is not enough. Signatas records what it can actually prove — that the document has not changed, that the ceremony happened, and that the signer consented — and says plainly what it cannot. Stronger identity tiers are on the roadmap and are marked below; they are not available yet.
01
Available nowEmail or SMS possession, consent, and a sealed record of the ceremony.
Proves
Does not prove
Everyday business documents, NDAs, service agreements
02
Not available yetAdds a government ID check and a liveness test before signing.
On the roadmap. This tier cannot be selected and no ceremony can be created at it.
Proves
Does not prove
Higher-value contracts, onboarding, property
03
Not available yetA signature created with a certificate from a Qualified Trust Service Provider.
On the roadmap. This tier cannot be selected and no ceremony can be created at it.
Proves
EU regulated instruments
04 · Integration
Built for developers first. Integrate Signatas directly into your workflows via our HTTP API or let an AI agent drive it over the Model Context Protocol. You pay per ceremony sent—no seats, no unused subscriptions.