MISSION

Make every document verifiable by whoever receives it.

Deepstamp is the document authenticity infrastructure for SaaS publishers: the seal that proves a document really comes from its issuer and that nobody has modified it. Email made writing letters free. The web made publishing them free. Then AI made forging them free. Deepstamp adds the seal that was missing: an invoice, a contract, a payslip, a statement proves on its own that it is the original, in one second, on any device, for life.

FOUNDED IN TOULOUSE · 2 CO-FOUNDERS

Benjamin Mathias

Co-founder · CTO

Convinced every document should carry its own proof. Building the seal a recipient verifies in one second.

Celia Assemat

Co-founder · CEO

Convinced trust only matters if it stays neutral: Deepstamp attests where a document comes from, without ever reading or storing it.

WHAT MAKES THIS ONE DIFFERENT

The seal lives on the document

The verdict isn't hidden behind an account to create. You read it on the document itself, in the email, in one second, the moment you receive it.

The seal arrives through your software

We connect to the SaaS recipients already use. Every publisher that adds the seal makes it recognizable to thousands more recipients.

A verdict, not a guess

The seal matches, or it doesn't. The answer is clear: authentic or modified. No model guesses for you.

TIMELINE

Day oneFounded in ToulouseTwo founders. One conviction: every document should be able to prove where it comes from.
Productdeepstamp.fr goes liveCertification at issuance and free verification, without an account, for every recipient.
APIOpen to software publishersTwo endpoints to seal and verify. Guided integration in 24 hours.
TodayFirst Movers ProgramThe first spots per vertical are open, on founding terms.
NextThe standardMaking "certified by Deepstamp" as readable as the browser padlock.