{"receipt_id":"r_4bf0368fb4f24967","sha256":"3c867504b793df9ad7585658f6d4e66ba3e551012540d7abdc6e3e27d26152c5","created_at":"2026-10-27T23:01:48.382659+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-27T23:01:48Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"3c867504b793df9ad7585658f6d4e66ba3e551012540d7abdc6e3e27d26152c5"},"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":"CD7JpQ2X1ft3JUYEVMq8adORZ3chVcqccjSM3DaW104NVdycDmQHGTODspZ/NsBEPgGiYobZdHBdU90fCXvGDA=="}},"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":"3c867504b793df9ad7585658f6d4e66ba3e551012540d7abdc6e3e27d26152c5","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}