ReportCheck

Submit an engineering report (API 510 pressure vessel, API 570 piping, or PSM 1910.119 compliance audit) as JSON claims tagged with code + section. ReportCheck runs a deterministic paragraph-match against the canonical citation index and returns a structured audit response identifying every missing_citation, wrong_paragraph, and unit_mismatch — the three most common engineering-report hallucinations produced by general-purpose LLMs.

• Report text is held in process memory only. Retention < 60 seconds; never written to disk.
• NIM-only path. Customer report content is never streamed to OpenRouter, Sonar, or any external LLM.
• Only the response, audit ID, and ledger metadata are persisted — not the input report.
• Source repository is private.

First call returns 402 Payment Required with the x402 accepts envelope. Second call with X-PAYMENT returns 200 and the audit JSON.

POST /api/audit
Content-Type: application/json
X-PAYMENT: <base64 payment proof>

{
  "report_type": "API_510",
  "vessel_id": "V-101",
  "claims": [
    { "id": "c1",
      "claim_text": "MAWP shall not exceed nameplate rating...",
      "code": "API 510", "section": "5.4.1",
      "value": "150", "unit": "PSI" }
  ]
}

{
  "report_type": "API_510",
  "findings": [ { "error_type": "missing_citation" | "wrong_paragraph" | "unit_mismatch" | null, ... } ],
  "citations_checked": 12,
  "hallucinations_detected": [...],
  "unit_errors": [...],
  "paragraph_mismatches": [
    { "cited_paragraph_text": "...", "expected_paragraph_text": "...", "jaccard_score": 0.04 }
  ],
  "confidence_score": 67,
  "privacy": { "mode": "NIM_ONLY", "retention_seconds": 60 }
}