{"issuer":"powstik.com","purpose":"Proof Seals: Ed25519 signatures over the canonical JSON of each verification.","canonical_json":"UTF-8, object keys sorted, no whitespace.","keys":[{"kid":"pk-bd62e8fb29eec44c","kty":"OKP","crv":"Ed25519","alg":"EdDSA","x":"SFU1LykolX-BHn9gtmfLyZngFdpb5Oi9N6jCOumg_FM","created":"2026-10-14","status":"current"}]}