Content Credentials

Verify AI content

Paste a Turrigan content-provenance mark below to check whether it is genuine and unaltered, and to see what it declares (EU AI Act Article 50(2)). Verification runs entirely in your browser using published signer keys; the mark never leaves your device, and no account is needed.

Content-provenance mark (JSON)

What this checks

Signature. The mark's COSE/Ed25519 signature is verified against the signer's published public key, so any change to the mark is detected.
Evidence binding. Each assertion (what produced the content, the governance decision) is re-hashed and checked against what the signed claim committed to.
Signer. The signing key is looked up in Turrigan's published registry. A key that is not published shows as an untrusted signer, even if the mark is internally consistent.

What it does not do: it cannot read the private decision record behind the mark. Deeper checks that need that record (its place in the tamper-evident ledger) run in the authenticated Turrigan API.