Agents citing YUCLAW inherit accession-verified,
point-in-time, hash-anchored evidence: every EvidenceObject carries a verified excerpt, its SEC
accession number, a SHA-256 anchored in a public daily ledger, and the available_as_of bound
that makes look-ahead impossible to hide. Start at
capabilities.json — one URL discovers everything.
yuclaw check-claim --ticker NVDA --type INSIDER_SELL --accession …
returns a passport: the claim as parsed, the matched EvidenceObjects with excerpts and hashes, and one of
five mechanical statuses. Below is a real passport generated at this page's build:
{
"claim_as_given": "{\"ticker\": \"NVDA\", \"type\": \"INSIDER_SELL\", \"accession\": \"0001199039-26-000012\"}",
"claim_as_parsed": {
"ticker": "NVDA",
"type": "INSIDER_SELL",
"accession": "0001199039-26-000012",
"date_range": null
},
"generated": "2026-09-04T09:51:15.285484+00:00",
"status": "SOURCE_MATCHED",
"matched_evidence": [
{
"ticker": "NVDA",
"evidence_type": "INSIDER_SELL",
"filing_date": "2026-09-02",
"accession_number": "0001199039-26-000012",
"excerpt": "STEVENS MARK A S 300000 shares @ $226.27 on 2026-09-02 ($67,881,120)",
"source_hash": "fc5e7245ddf98ce0a22802548e1d61d7738b05f3c6975327089cbd616c53883e",
"available_as_of": "2026-09-02T16:15:31.066675-06:00"
},
{
"ticker": "NVDA",
"evidence_type": "INSIDER_SELL",
"filing_date": "2026-09-02",
"accession_number": "0001199039-26-000012",
"excerpt": "STEVENS MARK A S 300000 shares @ $224.07 on 2026-09-02 ($67,221,450)",
"source_hash": "1879b4e1806cf2f638264e5dd1d7ebb7c56ed5f4b0fc9c6c49865b194526c9d9",
"available_as_of": "2026-09-02T16:15:31.066675-06:00"
},
{
"ticker": "NVDA",
"evidence_type": "INSIDER_SELL",
"filing_date": "2026-09-02",
"accession_number": "0001199039-26-000012",
"excerpt": "STEVENS MARK A S 300000 shares @ $222.92 on 2026-09-02 ($66,876,120)",
"source_hash": "c17bd1417d548591a74442ae01c6b1f82e49020de28d560023d45dc9d44b4ba7",
"available_as_of": "2026-09-02T16:15:31.066675-06:00"
},
{
"ticker": "NVDA",
"evidence_type": "INSIDER_SELL",
"filing_date": "2026-09-02",
"accession_number": "0001199039-26-000012",
"excerpt": "STEVENS MARK A S 300000 shares @ $220.08 on 2026-09-02 ($66,022,830)",
"source_hash": "59a62a73892026d042054d4b3b05b61ec517f92e4efd83f89e8915aa526adbc2",
"available_as_of": "2026-09-02T16:15:31.066675-06:00"
},
{
"ticker": "NVDA",
"evidence_type": "INSIDER_SELL",
"filing_date": "2026-09-02",
"accession_number": "0001199039-26-000012",
"excerpt": "STEVENS MARK A S 63501 shares @ $220.06 on 2026-09-01 ($13,973,960)",
"source_hash": "ae74c488a9dd455a87233c4f96bf9eaa4d2681cd6659c2a8fba66632f254c6bd",
"available_as_of": "2026-09-02T16:15:31.066675-06:00"
}
],
"misses": [],
"replay": "yuclaw check-claim --ticker NVDA --type INSIDER_SELL --accession 0001199039-26-000012",
"not_advice": "Research and education only \u2014 not investment advice. A passport describes what YUCLAW's corpus contains; UNSUPPORTED means 'not found in YUCLAW's corpus \u2014 never a truth verdict'."
}
| Status | Meaning |
|---|---|
| SOURCE_MATCHED | every structured element of the claim matched at least one EvidenceObject — the excerpts and hashes are in the passport |
| PARTIAL_MATCH | at least one EvidenceObject matched some elements of the claim; the matched objects and the misses are both listed explicitly — a passport with zero matched objects is never PARTIAL_MATCH |
| UNSUPPORTED | no EvidenceObject matched — not found in YUCLAW's corpus, never a truth verdict; a cited accession that is not in the corpus lands here |
| NOT_IN_COVERAGE | the ticker is outside the 79-name scoring universe; the corpus cannot speak to it |
| NOT_PARSEABLE | the conservative text parser could not confidently structure the claim — the false-denial guard: an unparsed claim is never called unsupported |
To reconstruct name X as of date D from why/X.json: evidence =
objects with available_as_of ≤ D; the classification at D = the label_history
entry for the last date ≤ D. Older dates beyond the ribbon: yuclaw replay X --date D.
Worked example in llms.txt.
/evidence_changes/{YYYY-MM-DD}.json — one file per UTC day, rolling 30 days,
key order date, counts, c6_posture, grades, ledger, maturity, replay. The cumulative C6 posture
accession set is not inlined; it lives at /c6_posture_current.json
({as_of, files, set_sha256, accessions}) and each daily file carries only a one-day delta:
"c6_posture": { "files": N, "set_sha256": "…", "added_today": [...], "removed_today": [...],
"delta_since": "YYYY-MM-DD", "delta_span_days": N, "delta_status": "OK",
"current_url": "/c6_posture_current.json" }
"\n", NO trailing newline; sha256 of those bytes.
Recompute it from accessions to verify the endpoint offline.current_url is mutable (always latest); the set_sha256
inside each dated daily file is the historical pin for that day.delta_since is that day and delta_span_days the
calendar days covered (1 on consecutive build days; honestly 3 after a weekend — the chain runs weekdays). A
same-UTC-day rebuild leaves the base unchanged and recomputes the block idempotently (the build gate proves
twice-run identity). Only a true cold start (no previous-day set at all) publishes added_today/
removed_today/delta_since/delta_span_days = null with
delta_status = UNAVAILABLE (cold start: no previous-day set state).c6_posture_accessions /
c6_posture_files keys and are never rewritten./why/{TICKER}.json — full anatomy + EvidenceObjects + label history (79 names)/capabilities.json · /evidence/verify.json · /ledger/{DATE}.json — discovery + offline integrity verification/schemas/*.v1.json — eight frozen object schemas/c6_posture_current.json · /evidence_changes/{YYYY-MM-DD}.json — C6 posture set (pinned hash) + daily deltasget_evidence · get_signal_anatomy · check_claim · verify_snapshot · get_protocolYUCLAW · Home