{"key_id":"govtrace-signing-v1","algorithm":"Ed25519","public_key_b64url":"OwOdZ-d9QHwtuRCreEn6SIZ9iTuWxTpJPfeN5pGL-ns","public_key_pem":"-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAOwOdZ+d9QHwtuRCreEn6SIZ9iTuWxTpJPfeN5pGL+ns=\n-----END PUBLIC KEY-----\n","signs":"record_hash (SHA-256 of canonical DoCR body + chain_prev_hash)","signature_encoding":"base64url (unpadded)"}