Yebo Authorization Certificate
An open cryptographic standard for proving that a specific human authorized a specific AI action. hardware-bound cryptography signed, hardware-attested, independently verifiable.
What is a Yebo Authorization Certificate?
A YAC is a cryptographically signed receipt that proves a specific human authorized a specific AI action under a specific enterprise policy. It is produced at the end of every successful Yebo authorization pipeline.
The certificate is signed with hardware-bound cryptography by the Yebo gateway using a key you can verify independently. The signed fields are canonicalized, SHA-256 hashed, and the signature covers that hash, making any tampering immediately detectable.
YACs are designed to be the compliance artifact for AI governance: the evidence a regulator, auditor, or legal team needs to answer “did a human authorize this?”
YAC is Yebo's signed authorization certificate format. Every Yebo receipt is a hardware-attested, policy-bound, independently verifiable artifact. The full schema, signing spec, and verification endpoints are available to approved partners under sandbox access.
Request YAC Spec Access →Start issuing YACs today
Every authorization through the Yebo gateway generates a signed YAC automatically.