{"receipt_id":"r_053618f8dd3e4996","sha256":"954a80fee6bac50a4ea84e0c39d10bec373fd5279fce93694851153aaceeaaf3","created_at":"2026-10-26T21:07:09.013505+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-26T21:07:09Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"954a80fee6bac50a4ea84e0c39d10bec373fd5279fce93694851153aaceeaaf3"},"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":"oWwz5xT06Yc5cORWExE+b6Vh0kKIMamuL7IK1uehyga5vdR95Z5y7+JWe/kLLRqtlItZFrs6LWPSYujXUhZCBg=="}},"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":"954a80fee6bac50a4ea84e0c39d10bec373fd5279fce93694851153aaceeaaf3","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}