{"receipt_id":"r_15ff2ec54da54e2d","sha256":"e8971af7b38fc30dfcd6fef5196ebd521a6561fd5d157d78f4530a1d91c65c8f","created_at":"2026-10-26T21:05:01.927437+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-26T21:05:02Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"e8971af7b38fc30dfcd6fef5196ebd521a6561fd5d157d78f4530a1d91c65c8f"},"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":"kh2w3Td00vMkWk1ysRfho50sYwQPcp0eM+9STuh/TaQEs78djABwJq6/Po8grglpjRZmvMDRsHilwyugvjVUDw=="}},"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":"e8971af7b38fc30dfcd6fef5196ebd521a6561fd5d157d78f4530a1d91c65c8f","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}