{"receipt_id":"r_58e1c48ea3ce44d6","sha256":"cb5c11cd7bb387a6fd582e9a1b9750b58ad2edbccde2d479ae41a370c7f4916c","created_at":"2026-10-25T17:45:11.298444+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-25T17:45:11Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"cb5c11cd7bb387a6fd582e9a1b9750b58ad2edbccde2d479ae41a370c7f4916c"},"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":"2UPR+u8MAzpHF+XXZd0cdfU90ymDOYMhhtokSHeZXDCXm+IKy133r7oXuqkPoFGBaBT4drZ+drE6jvdi6ASGDQ=="}},"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":"cb5c11cd7bb387a6fd582e9a1b9750b58ad2edbccde2d479ae41a370c7f4916c","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}