{"public_key_pem":"-----BEGIN PUBLIC KEY-----\nMCowBQYDK2VwAyEAyc7D9TowCmhKx/Pbhp/cdiZYR6jpJlAudDVS2HjsgGs=\n-----END PUBLIC KEY-----\n","key_type":"ed25519","fingerprint_sha256":"be63d1625908ed0da728890ccf5fa027fc44911f727d2c64f3f65fdef9da4ac6","signed_message_format":"hash|timestamp","trust_scope":"Pin the fingerprint through a separately trusted channel. This endpoint alone does not establish signer identity."}