ES256 · JWKS
Verify a 5arz credential.
Paste a Proof-of-Human-Fulfillment or Proof-of-Personhood credential (the JWT). We fetch 5arz’s public keys and check the ES256 signature in your browser — nothing is sent to a server.
Don’t trust us. Check.
PoHF or Proof-of-Personhood · checked in this browser
Prefer to verify server-side? Fetch the JWK from api.5arz.com/.well-known/jwks.json and validate with any standard JWT library (jose, pyjwt, etc.). The signature is raw P-1363 r‖s — exactly JWS ES256.
Result
Paste a credential, then press Verify signature. The checks and the decoded claims show here.
What this page checks
Four checks, all in your browser.
Signature
ES256, verified against the 5arz JWKS.
Issuer
The iss claim must be https://5arz.com.
Expiry
The credential must not be past its exp.
Id and type
Shows the credential id, its type and sybil_checked when present.
Issue credentials anyone can check.
Verification is free, forever. Create your own on the Free plan — 1,000 seals a month, no card.