{"receipt_id":"r_f6142e460b1d4b43","sha256":"db8b02ebd6b42c55d0676b6a2122c392998e28268f682f41931a8b77365eb443","created_at":"2026-10-28T02:56:56.845825+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-28T02:56:56Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"db8b02ebd6b42c55d0676b6a2122c392998e28268f682f41931a8b77365eb443"},"signature":{"algorithm":"ML-DSA-65","standard":"FIPS 204","public_key_id":"did:web:alphacovenantholdings.com:api:vc#key-pq-1","value":"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","implementation":"dilithium-py reference implementation; not FIPS-validated","hybrid_classical":{"algorithm":"Ed25519","standard":"FIPS 186-5","public_key_id":"did:web:alphacovenantholdings.com:api:vc#key-1","value":"CJihTEaGTgOnKt0Myu0UDj9Hy6LU1THIJlE4I+5xZEH1ZzL8m3Yac+d/bS6XoPCGM03Pm90VVDHfy9RH1VsYCg=="}},"rule":"In state HYBRID the set verifies only if both signatures verify under the keys named in the DID document.","did_document":"https://alphacovenantholdings.com/api/vc/did.json","states":"https://alphacovenantholdings.com/api/public/cryptography"},"verification":{"state":"HYBRID","set_present":true,"ml_dsa_65_valid":true,"ed25519_valid":true,"set_valid":true,"hash_checked":"db8b02ebd6b42c55d0676b6a2122c392998e28268f682f41931a8b77365eb443","note":"Ed25519 + ML-DSA-65, both detached over the ASCII bytes of the receipt's SHA-256 hex. Verification of the set succeeds only if BOTH verify. A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only. Receipts registered before the signature set existed carry no set; their SHA-256, transparency-log inclusion, SLH-DSA archive checkpoint and OpenTimestamps anchor still verify.","HYBRID":"Ed25519 + ML-DSA-65, both detached over the ASCII bytes of the receipt's SHA-256 hex. Verification of the set succeeds only if BOTH verify. A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so.","PQC_ONLY":"ML-DSA-65 only; Ed25519 no longer issued. Target state — by policy no later than 2031-12-31 (the OMB M-26-15 digital-signature date for agencies' covered systems); earlier if a break in Ed25519 is published."},"state_now_for_new_receipts":"HYBRID","how_to_verify_offline":"data = ASCII bytes of sha256; ML-DSA-65.verify(pk_pq, data, b64decode(signature.value)); Ed25519.verify(pk_ed, b64decode(signature.hybrid_classical.value), data); keys at /api/vc/did.json.","what_it_attests":"That this hash was registered by this platform at this time. It attests nothing about the party named in the receipt and is not a certification of anything."}