{"receipt_id":"r_8a2623c35e7d402c","sha256":"da48a04fc488e23c8aca4986532510790be8860d031dbafd7fed5b01d9fc9223","created_at":"2026-10-26T21:05:15.853404+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-26T21:05:15Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"da48a04fc488e23c8aca4986532510790be8860d031dbafd7fed5b01d9fc9223"},"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":"w6ui/OoJbiZKV1xWlRE8gY2qxbbTatx/Djncmnjblf5/Ts6HuhkRmrHzb02IGxf9P73xLlEyIuhDrncVfzhqCw=="}},"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":"da48a04fc488e23c8aca4986532510790be8860d031dbafd7fed5b01d9fc9223","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}