{"receipt_id":"r_e854866161d043d3","sha256":"3a4c554f456579e81c31cd081b2a67a63d1d30096a24a572e3d37455f39a1929","created_at":"2026-10-26T21:06:49.053239+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-26T21:06:49Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"3a4c554f456579e81c31cd081b2a67a63d1d30096a24a572e3d37455f39a1929"},"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":"x2bxVIDizR69ALOCKwJbLDuqTQv+d10jdOkUlY85zpZFTD6+ddugQjP0N5IoC7A0ynkGQG3eZuagtszQnzaGAg=="}},"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":"3a4c554f456579e81c31cd081b2a67a63d1d30096a24a572e3d37455f39a1929","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}