{
  "checked_at": "2026-10-07T01:09:19.537649+00:00",
  "method": "Pillow independently decodes the actual PNG bytes offered by the browser tool. RGBA SHA compared with browser pixel report. Browser versions not recorded.",
  "outputs": [
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      "height": 129,
      "bytes": 9204,
      "sha256": "da6a188c302520d627402b3aa1f57bcade5b8cc3baf7e9480739d4b03af4af23",
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      "non_opaque_pixels": 0,
      "mode": "RGBA",
      "exif_orientation": null,
      "probes": [
        {
          "xy": [
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            32
          ],
          "rgba": [
            254,
            0,
            0,
            255
          ]
        },
        {
          "xy": [
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          ],
          "rgba": [
            255,
            253,
            255,
            255
          ]
        },
        {
          "xy": [
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            96
          ],
          "rgba": [
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            5,
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            255
          ]
        },
        {
          "xy": [
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            96
          ],
          "rgba": [
            254,
            255,
            255,
            255
          ]
        }
      ]
    },
    {
      "file": "baseline-result.png",
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      "height": 129,
      "bytes": 9204,
      "sha256": "da6a188c302520d627402b3aa1f57bcade5b8cc3baf7e9480739d4b03af4af23",
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      "non_opaque_pixels": 0,
      "mode": "RGBA",
      "exif_orientation": null,
      "probes": [
        {
          "xy": [
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            32
          ],
          "rgba": [
            254,
            0,
            0,
            255
          ]
        },
        {
          "xy": [
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          ],
          "rgba": [
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          ]
        },
        {
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          ]
        },
        {
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          ],
          "rgba": [
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            255,
            255
          ]
        }
      ]
    },
    {
      "file": "cmyk-result.png",
      "width": 256,
      "height": 64,
      "bytes": 659,
      "sha256": "0a340e0f4af94144172ad6b401ffca0d054042fa3f90c31e30d2ab2b289e7cfe",
      "rgba_sha256": "febf710aca41b9c4d404ed03859b2f475ad8ea42c99311f873625f8e43f59d46",
      "non_opaque_pixels": 0,
      "mode": "RGBA",
      "exif_orientation": null,
      "probes": [
        {
          "xy": [
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          ],
          "rgba": [
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            255,
            255
          ]
        },
        {
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          "rgba": [
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        },
        {
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        },
        {
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          ],
          "rgba": [
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          ]
        }
      ]
    },
    {
      "file": "grayscale-result.png",
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      "bytes": 2330,
      "sha256": "f322127a049e990451c48991fb8759458b9efe2b4d19f846d3fe2b0c5055b970",
      "rgba_sha256": "d81446ae61a1f81457ea6d4f0ef332ca381729a5711c8be8c85c110d217887b0",
      "non_opaque_pixels": 0,
      "mode": "RGBA",
      "exif_orientation": null,
      "probes": [
        {
          "xy": [
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          ],
          "rgba": [
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            255
          ]
        },
        {
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          ],
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        },
        {
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          ],
          "rgba": [
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          ]
        }
      ]
    },
    {
      "file": "low-quality-result.png",
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      "height": 129,
      "bytes": 11048,
      "sha256": "6c2de5e210fad41035810dba3691e515425440d7832d4b3a4d637985685084c7",
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      "non_opaque_pixels": 0,
      "mode": "RGBA",
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      "probes": [
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          ],
          "rgba": [
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            255
          ]
        },
        {
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          ],
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        },
        {
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          ]
        },
        {
          "xy": [
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          ],
          "rgba": [
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          ]
        }
      ]
    },
    {
      "file": "orientation-6-result.png",
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      "height": 193,
      "bytes": 1387,
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      "probes": [
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          ]
        },
        {
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        },
        {
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          ]
        },
        {
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          ],
          "rgba": [
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          ]
        }
      ]
    },
    {
      "file": "progressive-result.png",
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      "height": 129,
      "bytes": 9204,
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      "mode": "RGBA",
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      "probes": [
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          ],
          "rgba": [
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          ]
        },
        {
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          "rgba": [
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          ]
        }
      ]
    },
    {
      "file": "seeded-noise-result.png",
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      "height": 129,
      "bytes": 114465,
      "sha256": "053ee391a3f9597c2d53ee97046f9fb3cf5f62bf7c21d32d0c9e799ae3a502b3",
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      "probes": [
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          ],
          "rgba": [
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          ]
        },
        {
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          ],
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          "rgba": [
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      ]
    },
    {
      "file": "side-4096-result.png",
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      "non_opaque_pixels": 0,
      "mode": "RGBA",
      "exif_orientation": null,
      "probes": [
        {
          "xy": [
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          ],
          "rgba": [
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          ]
        },
        {
          "xy": [
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          ]
        },
        {
          "xy": [
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        },
        {
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      ]
    }
  ],
  "pre_jpeg_reference_comparison": {
    "reference_file": "detail-reference.png",
    "output_file": "low-quality-result.png",
    "changed_pixels": 27506,
    "total_pixels": 33153,
    "ratio": 0.8296685066208186,
    "formula": "pixels with any RGB channel different / (width * height); both inputs are paired downloadable images, inspected with Pillow. Different from browser JPEG to PNG identity check."
  }
}