[
  {
    "file": "affiliation_sources.json",
    "sha256": "7ba98fb8fcc4529c05bf7129b8d1ffebce966b7f85c49858c27ab24a729f991f",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "source_file": "dist/downloads/banned-books-earlier-report.docx",
    "provenance": "Historical report transcription or its metadata; original model and survey inputs not verified"
  },
  {
    "file": "annual_series.csv",
    "sha256": "2155c56131958c0c98fe24c98e10c0e3f382630f5662dfa754b4f37409f3d867",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "source_url": "https://pen.org/report/the-normalization-of-book-banning/",
    "provenance": "Supplied published-summary table; not reconstructed from event data"
  },
  {
    "file": "forecast_comparison_2022_2023.csv",
    "sha256": "0e1d00d9219bb1e39a59fe957a7663f03e5cff29ae760b3335e2b61b127ab472",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "provenance": "Derived by analysis/forecast_visuals.py from historical forecast transcription and retained PEN workbook"
  },
  {
    "file": "historical_affiliations.csv",
    "sha256": "95044ae66e6dda85f0c03b54026db26a77fbf28b4d1bc642356e373b6c2429f2",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "source_file": "dist/downloads/banned-books-earlier-report.docx",
    "provenance": "Historical report transcription or its metadata; original model and survey inputs not verified"
  },
  {
    "file": "historical_forecasts_2022_2023.csv",
    "sha256": "a5556737281b53d768e6e80d367b9e3ccb397a4380d749f2685d75b2aba0e024",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "source_file": "dist/downloads/banned-books-earlier-report.docx",
    "provenance": "Historical report transcription or its metadata; original model and survey inputs not verified"
  },
  {
    "file": "pen_2022_2023.xlsx",
    "sha256": "b5222b5b87fc2ad66c58a22b726eed1ed9169ccfb5e66acbea2b23074981aafe",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "source_url": "https://docs.google.com/spreadsheets/d/1a6v7R7pidO7TIwRZTIh9T6c0--QNNVufcUUrDcz2GJM/edit",
    "provenance": "Retained PEN 2022-2023 index workbook; source recorded in prior forecast audit",
    "recorded_retrieval_date": "2026-09-29"
  },
  {
    "file": "published_counts.csv",
    "sha256": "dd698c427abff1e11cc8a0d4902963d60885f6557022e12dbb090290692e87b4",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "source_url": "https://pen.org/report/the-normalization-of-book-banning/",
    "provenance": "Supplied published-summary table; not reconstructed from event data"
  },
  {
    "file": "us_states_2024.geojson",
    "sha256": "45bd32111f9931cc277fb0f23d84cf34b92eb19b726e0d758f33a74d6c92b3f0",
    "original_acquisition_date": "Not established in this review",
    "reuse": "Source terms must be checked; no license asserted by this review",
    "provenance": "Boundary file retained from supplied QGIS package; original download date not established",
    "source_context": "QGIS report identifies US Census TIGERweb generalized 2024 states"
  }
]