Verify it yourself, without this site
curl -s https://registry.brainsait.de/.well-known/did.json # issuer public key (Ed25519)
curl -s https://registry.brainsait.de/vc/SA-PHY-000003 # signed credential (vc+jwt, EdDSA)
curl -s https://registry.brainsait.de/vc/status/SA-PHY-000003 # live status: current / superseded / revoked
curl -s https://registry.brainsait.de/transparency/log.json # append-only, signed hash chain
curl -s https://registry.brainsait.de/fhir/Practitioner/SA-PHY-000003
Check the EdDSA signature on the credential with the public key in did.json, then recompute the hash chain: hash = sha256(line), line.prev = previous hash.