{"receipt_id":"r_6a7a34abedce4ab9","sha256":"7ce34ba7d526a1dc33e0e1674b04e5dae129263d37c94582c873a84464ac92a8","created_at":"2026-10-27T23:02:03.428384+00:00","signature_set":{"schema":"receipt-signature-set/v1","state":"HYBRID","signed":"ascii bytes of the SHA-256 hex digest","signed_at":"2026-10-27T23:02:03Z","hash":{"algorithm":"SHA-256","standard":"FIPS 180-4","value":"7ce34ba7d526a1dc33e0e1674b04e5dae129263d37c94582c873a84464ac92a8"},"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":"nhBVCHZF58oSna0geDf61lJ3k2/fiXHJg/jAKEDyY+JHwjzLc3CcyDlzHmHrosY7jp1qjVtYhtI/T6paFIopAg=="}},"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":"7ce34ba7d526a1dc33e0e1674b04e5dae129263d37c94582c873a84464ac92a8","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 A verifier that does not know ML-DSA may check the Ed25519 signature alone and must say so."},"withdrawn":false,"states":{"CLASSICAL_ONLY":"Ed25519 only.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."}