{"receipt_id":"r_e876ec2554ba4020","sha256":"afe015cbb1aceb92458e4e21e75b9ac76d2086e8a613482ef42148a9a7051857","created_at":"2026-10-25T16:55:10.699349+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-25T16:55:10Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"afe015cbb1aceb92458e4e21e75b9ac76d2086e8a613482ef42148a9a7051857"},"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":"4WU5kztp0jxPhpcpBP2JbLQjdHTKoNlDgvf+YB1AwPOeag6WIIz3AGCDKVv7Lw1cQKz9CWp1d5OvfJo7QpQWDA=="}},"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":"afe015cbb1aceb92458e4e21e75b9ac76d2086e8a613482ef42148a9a7051857","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}