Trust infrastructure for
the post-AI era
As AI-generated content becomes indistinguishable from human-made content at a glance, the question isn't "is this AI?" — it's "can you prove who made it, when, and with what system?" Certivu answers that question cryptographically.
Our mission
Certivu provides cryptographically verifiable provenance for AI-generated content, enabling platforms and media to label content with confidence — without claiming universal detection.
We believe the correct answer to the AI content problem isn't a black-box detector. It's an open, cryptographic chain of custody — signed at generation, embeddable in the artifact itself, verifiable by anyone, forever.
Signatures establish truth
ML-DSA cryptographic signatures are the source of truth. Watermarks are resilience, not proof.
No content stored
We store only hashes and records. Your content never touches our servers.
Verification is always free
Anyone can verify provenance — no account, no API key, no cost. Verification is a public good.
Honest positioning
We never claim to detect all AI content. Absence of provenance data does not imply human origin.
Built to last decades
Classical signature algorithms (RSA, ECDSA) will be broken by sufficiently large quantum computers. NIST spent eight years evaluating post-quantum replacements, finalizing ML-DSA (Dilithium) as FIPS 204 in 2024.
Content signed today needs to remain verifiable in 2034 and beyond. We chose ML-DSA from day one — not as a future migration, but as the foundation.
We do not use RSA or ECC anywhere in Certivu's signing stack.
What we don't claim
Honest positioning is a core principle. These are things Certivu will never say.
We verify signed provenance when present. Unsigned content can be anything.
Watermarks are resilient, not tamper-proof. They survive typical transforms — not targeted removal.
Absence of a Certivu record says nothing about the content's origin.
RSA and ECC are not used in our signing stack. ML-DSA only.
Start building provenance
500 free signatures per month. No credit card required.