Verify an output certificate

Paste a signed output_cert JSON. Verification is done locally against the broker's Ed25519 public key — no LLM call required.

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How verification works

The broker signs every output certificate with Ed25519. The signature covers a canonicalized (sorted-key) JSON of the entire payload except the signature field. The public key is published at /v1/public-key. Any auditor — compliance, regulator, end-user — can verify the certificate offline against the published key.