{"current":{"alg":"Ed25519","kid":"sk-2026-05-026c19","public_key_b64":null,"node_id":null,"since":null,"note":"PQC key unavailable; verifying with legacy Ed25519 fallback."},"rotation_history":[{"alg":"Ed25519","kid":"sk-2026-05-026c19","pem_url":"/.well-known/pindufai-attestation-keys/sk-2026-05-026c19.pem"}],"verification_instructions":{"ml_dsa_65":"FIPS 204 ML-DSA-65 (a.k.a. Dilithium3). Decode public_key_b64 as standard base64; verify with any FIPS 204 implementation — dilithium-py, liboqs, the NIST reference.","ed25519":"Standard Ed25519. Fetch the PEM at /.well-known/pindufai-attestation-keys/{kid}.pem."},"verify_endpoint":"/api/v1/verify/{signature_id}","provenance_page":"/provenance"}