{
  "schema_version": "1.0.0",
  "generated_at": "2026-08-06",
  "source_catalog_id": 106,
  "title": "Investigation Records — Volume I page index",
  "pdf_pages": 496,
  "pagination_note": "Page numbers are one-based PDF page numbers, not document-internal folios.",
  "text_layer": {
    "extractable_pages": 383,
    "image_only_or_release_stamp_pages": 113,
    "coverage_percent": 77.2,
    "method": "Existing PDF text layer inspected page by page; no claim is made that image-only pages have complete OCR.",
    "limitation": "Keyword misses are possible on image-only pages and where scan quality or character encoding is poor."
  },
  "topic_ranges": [
    {
      "pdf_pages": "2–57",
      "topic": "NIH/NIAID responses to FBI questions about grant R01AI110964, gain-of-function terminology, P3CO review, EcoHealth Alliance, and Wuhan-related work",
      "duplicate_note": "Substantially repeated at PDF pages 225–280."
    },
    {
      "pdf_pages": "58–192",
      "topic": "Drafts, edits, and technical-assistance discussions concerning the Risky Research Review Act and oversight definitions",
      "duplicate_note": null
    },
    {
      "pdf_pages": "193–224",
      "topic": "NIH internal discussion of an origins-related petition, Proximal Origin, peer review, awards, and medical-countermeasure programs",
      "duplicate_note": "Most pages repeat at PDF pages 330–361."
    },
    {
      "pdf_pages": "225–280",
      "topic": "Repeated FBI/NIH grant-question production",
      "duplicate_note": "Matches the earlier pages 2–57 block."
    },
    {
      "pdf_pages": "281–329",
      "topic": "Additional image-based investigation records and separator pages",
      "duplicate_note": null
    },
    {
      "pdf_pages": "330–361",
      "topic": "Repeated NIH internal discussion and medical-countermeasure records",
      "duplicate_note": "Mostly matches pages 193–224."
    },
    {
      "pdf_pages": "362–496",
      "topic": "Biodefense coordination, government interagency agreements, Ebola aerosol work, meeting records, and medical-countermeasure policy materials",
      "duplicate_note": "Includes numerous release-stamp and image-only pages."
    }
  ],
  "keyword_page_hits": {
    "FBI inquiry or R01AI110964": "2–56 and 225–279, intermittent",
    "P3CO": "2–57 and 225–280, intermittent",
    "Risky Research Review Act": "108–176, intermittent",
    "EcoHealth": "25–53, 193–199, 248–276, and 330–336, intermittent",
    "Wuhan": "3–57 and 226–280, intermittent; also page 191",
    "medical countermeasures": "202–223, 339–360, and 388–494, intermittent",
    "Ebola": "110–177 and 388–411, intermittent"
  },
  "duplicate_method": "Exact SHA-256 fingerprints of whitespace-normalized extracted text. Visual similarity and near-duplicate OCR were not counted.",
  "duplicate_summary": {
    "exact_text_groups": 88,
    "pages_in_groups": 240,
    "redundant_occurrences_after_one_canonical_page_per_group": 152,
    "retention_policy": "Every source page remains in the hosted PDF; the index flags duplication for navigation and review only."
  }
}