{"receipt_id":"r_5c78a77dd2c543b9","sha256":"d319b6553be7358a1ba07367577226ee655131616293072a1b870bbdc16e59a6","created_at":"2026-10-25T16:55:47.056291+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-25T16:55:47Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"d319b6553be7358a1ba07367577226ee655131616293072a1b870bbdc16e59a6"},"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":"l90PMIJ7JAtt/uHPGLCasZZtMoue5KJRoWnxpywDuHri7PumWlHkgZhjJQyjOYGs3i01zQZJmhYuKxCpXv49Dw=="}},"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":"d319b6553be7358a1ba07367577226ee655131616293072a1b870bbdc16e59a6","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}