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  "board": "PTB-H",
  "boardName": "Punjab (historical)",
  "boardFull": "Punjab Textbook Board, Lahore — historical editions",
  "class": "6",
  "classSort": 6,
  "subject": "Social Studies",
  "medium": "Urdu",
  "pages": 146,
  "sizeMB": 27.3,
  "textTier": "scanned",
  "producer": "?",
  "file": "ptb-historic/class-6/social-studies-6-ur.pdf",
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  "acquired": "2026-08-23",
  "sha256": "9b722c8bdeceb451e08404525800d56544f13afc5289c59b4942f6afb3c7eb0b",
  "title": "معاشرتی علوم چھٹی جماعت کے لیے / Muasharati Ulum for Class VI",
  "sourceUrl": "https://archive.org/download/1991-compressed_202510/%D9%85%D8%B9%D8%A7%D8%B4%D8%B1%D8%AA%DB%8C%20%D8%B9%D9%84%D9%88%D9%85%20%DA%86%DA%BE%D9%B9%DB%8C%20%D8%AC%D9%85%D8%A7%D8%B9%D8%AA%20%DA%A9%DB%8C%D9%84%D8%A6%DB%921991_compressed.pdf",
  "scores": {},
  "evidence": [],
  "curriculum": "Historical PTB edition",
  "edition": "see year",
  "editionNote": "Pre-2006 curriculum era; imprint year from the scan where recorded",
  "note": null,
  "_license": "CC BY 4.0 — attribute to the Textbook Evidence Project.",
  "_note": "Scores are measured properties of text, not verdicts. Read /method/ before using them.",
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