{"canonical_url":"https://ustechautomations.com/offers/certificates/cand-467-question-seal/","certificate_id":"usta-cert-40cccaf5f67743c596cb6c34","gate":{"issued_at":"2026-08-14T01:53:18Z","verdict":"GREEN"},"grader":{"candidate":"cand-467","name":"reproduce.py","sha256":"fec99a77f0d125e9db83eb235f0f2bb729f42d097d6990e30a2179464d405f27"},"issued_at":"2026-08-14T01:40:02Z","limitations":["This certificate covers only the named question and recorded inputs at issuance.","It does not certify future behavior, legal compliance, or facts absent from the rail.","A valid signature proves byte integrity and signer control, not the truth of an upstream source."],"offer":{"billing":"one time","buyer":"AI governance, procurement, or platform assurance lead","cancellation":"cancel before generation begins","contact_instruction":"Use the dedicated request form; it preserves the verification-certificate product token in the submitted message.","contact_url":"https://ustechautomations.com/offers/verification-certificate/","deliverable":"one signed HTML and JSON verification certificate generated from agreed rail evidence","delivery":"within two business days of receiving the agreed evidence scope","price_usd":249},"public_key":{"algorithm":"Ed25519","download":"https://ustechautomations.com/offers/certificates/cand-467-question-seal/public-key.pem","sha256_raw":"f660475c08d4bdb806684722d13760d42737d914358d257a2bab1047b5fc2f60"},"rail_evidence":{"grader_result":"PASS","legacy_verdicts_before_cutoff":210,"legacy_verdicts_ruled":68,"legacy_verdicts_unproven":68,"negative_control_detected_missing_qhash":true,"qhash_expected_rows":75,"qhash_pinned_rows":75},"recorder":{"reason":"Replay grader measured 75 of 75 declared cand-441 through cand-515 rows with gate-accepted question hashes, 68 of 68 pre-cutoff recorder rows lacking provenance explicitly ruled GRANDFATHERED-UNPROVEN, and 1 unpinned negative fixture detected. The candidate-specific B8 preflight returned GREEN on all 9 checks.","recorded_at":"2026-08-14T01:40:02Z","run_id":"02c4314c-78ef-4253-8547-31734a547115","verdict":"CHECKPOINT"},"schema":"usta.verification-certificate.v1","source_digests":{"gate_token_sha256":"f3ae73a6a1896f38df790acd7cf5e44f77b27f1d65ac566eb25c53014733c43a","grader_registry_entry_sha256":"d9c28050358735fc5bd018566184968382c699e54e706b7df7168a5816848811","recorder_row_sha256":"fb9ea2b63a33fad5ad1c1504360e247373c396b48249f95b080b0248bb3552c5","replay_evidence_sha256":"a5e7c6a450ea5c5d4a870ca5fd9a6ffd2208de4b2af7c49f7892432a8090b39b","reviewed_row_sha256":"c6b8a58be5c1c49fc82ff6b4ed3218379eeae0ce8e753d4de70c9cd3086d7896"},"subject":{"project_id":"usta.cand-467-qhash-provenance-seal","qhash_sha256":"c3aa097a0c9962fd70ede82657be894fa8ea16eb58f80b75f1608d1c62544814","question":"Did cand-467 QHASH-AND-PROVENANCE-SEAL satisfy the exact scope, evidence, dependencies, grader, and prohibitions in this reviewed row?","row_id":"cand-467"}}