{"receipt_id":"r_1762237fcc0b4d3b","sha256":"ab3d7e7bd32ed1e68b6c6a44ee119308cbf453ef108a5172d2fbb909384d9a81","created_at":"2026-10-27T23:03:16.984859+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-27T23:03:16Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"ab3d7e7bd32ed1e68b6c6a44ee119308cbf453ef108a5172d2fbb909384d9a81"},"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":"X3E1Uq6Y0sQh02g7fFTPGzzKz4xa2i/KV367rlvFnzdNN6Dhl5Rt7yufwHfKSVBc1b8opdBJ7+zZtWFp8kL2CQ=="}},"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":"ab3d7e7bd32ed1e68b6c6a44ee119308cbf453ef108a5172d2fbb909384d9a81","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}