{"receipt_id":"r_075cd80cd2484199","sha256":"a2cd07925bb3177b97177b8ac98f9e993ed3f4b2c907cead8e4c491ae6aa4ca8","created_at":"2026-10-28T00:00:56.350031+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-28T00:00:56Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"a2cd07925bb3177b97177b8ac98f9e993ed3f4b2c907cead8e4c491ae6aa4ca8"},"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":"iXzPCwVr42SLBI7XcEEuoLTuKtNYsW1A/FZltz+WqOn7q5Aa1F7Mte1FQ2qxnr3Wa2UC9QgLKrwNDI27KH67Dg=="}},"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":"a2cd07925bb3177b97177b8ac98f9e993ed3f4b2c907cead8e4c491ae6aa4ca8","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}