A hash-chained, append-only record of Arena attestations — anchored only by GMT_hash (a hash of the credential presentation). No UUID, no keys, no identities, ever — a person's certifications are unlinkable to each other or to who they are. Anyone can record an Arena-signed attestation; only a holder can reveal their own anchor.
1Record an attestation
Submit an Arena-signed cga-attestation-*.json. The Ledger verifies the Arena's signature, then commits a block that chains to the previous one.
Drop your cga-attestation-*.json here, or click to choose
2Audit lookup
Look up attestations by their credential anchor (GMT_hash). You cannot enumerate a person — only verify a credential a holder chooses to reveal.