{"algorithm":"Ed25519","key_id":"1c8a8561ec701a12","public_key":"UPV8onPIsrrM14bzPyNWHy7qY0/t3rL6HiLLabu96V0=","public_key_pem":"-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAUPV8onPIsrrM14bzPyNWHy7qY0/t3rL6HiLLabu96V0=\n-----END PUBLIC KEY-----\n","previous_keys":[],"development_key":false,"statement_format":"ceco-certificate/1","how_to_verify":"Take `statement` from the certificate's embedded statement.json, serialise it as JSON with keys sorted, no spaces after separators and UTF-8 text unescaped, and verify `signature` (base64) over those bytes with the key whose key_id the statement names. To check the PDF itself, compare its SHA-256 with `certificate_sha256` from GET /v1/certificates/{id}, or upload it at /verify."}