{
  "schema": "public-render-comparison-evidence-v1",
  "status": "passed",
  "publicReproduction": {
    "script": "rebrowser-patches-vs-engine-level-browser-layer-fixture-20261111.mjs",
    "scriptSha256": "b5ccfe81ca8c250fb9a61bba788c01f22af771609efc87cedf3e16acdb113c40",
    "html": "rebrowser-patches-vs-engine-level-browser-layer-render-fixture-20261111.html",
    "htmlSha256": "6ae3caf92cc7f348bf799fe86b50345e6425958d341355565a4f2dd392671095",
    "validation": "Syntax checked and browser-executed on the recorded Ubuntu host; nine page-value tasks collected with peakActive=9, peakBrowserLanes=9, verified cleanup. This public wrapper does not audit profile loading.",
    "relationshipToControlledRun": "Page HTML is byte-identical to the controlled run. The public wrapper uses the public profile option and reports page values, while controlled diagnostic profile-loading review remains separate.",
    "htmlSaveAs": "render-fixture.html",
    "browserRun": {
      "ranAt": "2026-11-12T01:41:19.342Z",
      "rawArtifactSha256": "b8d260d556e5e89f8472eb53722eeff9c6f3daf217d3262410ef86dfcfec8f43",
      "status": "page-values-collected",
      "profileLoadAudited": false
    }
  },
  "ranAt": "2026-11-12T01:33:31.825Z",
  "completedAt": "2026-11-12T01:33:34.788Z",
  "siteCalendarDate": "2026-11-11",
  "calendarTimezone": "America/Toronto",
  "exitCode": 0,
  "runner": {
    "id": "Ubuntu",
    "os": "Ubuntu x64",
    "display": ":88"
  },
  "command": "Normalized observed browser launch: Chromium 157.0.8103.38 --bot-profile=<verified-encrypted-profile>; other launch arguments omitted from this public command summary",
  "binary": {
    "version": "157.0.8103.38",
    "sha256": "aebe1b6920a92e46ba41afa901d0fe17d542deaa44da28fee34bc5afc6e5c0bc"
  },
  "profileSha256": "31b08aca8a4df4080084d0a6cf99ee29936fdc76f67b24accd61c387437aa5b8",
  "stdout": "\"comparisonPermitted\": true,",
  "stdoutProvenance": "Literal fragment from the successful controlled CLI output; the corresponding raw JSON field is comparisonPermitted=true.",
  "comparisonPermitted": true,
  "rawArtifactSha256": "03f2ef06614c359a5955c274dd1daad5a5d464566f855cf6924e4c94e4bed776",
  "rawArtifactLabel": "result-verified.json",
  "sourceIssue": "001204",
  "scope": "Same-host, same-owned-page observations; native and patched drivers share one stock executable; declarative lane has a different executable and Windows-target profile",
  "environment": {
    "os": "linux 6.8.0-139-generic x64",
    "node": "v20.20.2",
    "display": ":88",
    "headed": true,
    "sandbox": "Playwright default chromiumSandbox:false; isolated root-run diagnostics, not deployment advice"
  },
  "inputs": {
    "stock": {
      "version": "157.0.8103.50",
      "sha256": "cce8581219e59c17bcc60bff0cdfdcb2405a6d63acb1f3c32670a40814ba558c"
    },
    "botbrowser": {
      "version": "157.0.8103.38",
      "sha256": "aebe1b6920a92e46ba41afa901d0fe17d542deaa44da28fee34bc5afc6e5c0bc"
    },
    "native": {
      "name": "playwright-core",
      "version": "1.64.1",
      "packageJsonSha256": "8aa1c9863fa8dea324e674254158cdc79440f4124ef2d84d38053013541cb7d6"
    },
    "patched": {
      "name": "rebrowser-playwright-core",
      "version": "1.64.102",
      "packageJsonSha256": "0aa54893341593767cd1c18a44eb2faf39dd0fec8b399f65f50b572c599572d1"
    },
    "profile": {
      "sha256": "31b08aca8a4df4080084d0a6cf99ee29936fdc76f67b24accd61c387437aa5b8",
      "target": "win11_x64",
      "kernelMajor": 157,
      "signatureConfiguration": "official_157: exact envelope verified with the corresponding public key in memory; this is not a runtime validity result",
      "source": "premium_test exact Chrome157 Windows x64 profile, schema 2.01.05, date 20261024; generator and paired commit 893f11536 establish provenance, without claiming a sourceProfile field exists",
      "readerModeInput": "must-confirm-at-runtime",
      "profileAfterRunSha256": "31b08aca8a4df4080084d0a6cf99ee29936fdc76f67b24accd61c387437aa5b8"
    }
  },
  "resources": {
    "capturedAt": "2026-11-12T01:33:32.413Z",
    "cpuCount": 32,
    "estimatedIdleCores": 31.762376237623762,
    "availableMemoryBytes": 122898857984
  },
  "execution": {
    "requestedWorkers": 20,
    "effectiveWorkers": 9,
    "reason": "Global queue of nine tasks; one estimated idle core and 1 GiB per concurrent browser",
    "peakActive": 9,
    "peakBrowserLanes": 9,
    "browserConcurrencySamples": [
      {
        "elapsedMs": 291,
        "browserLaneCount": 1,
        "lanes": [
          "native-1"
        ]
      },
      {
        "elapsedMs": 572,
        "browserLaneCount": 9,
        "lanes": [
          "native-1",
          "patched-1",
          "declarative-1",
          "native-2",
          "patched-2",
          "declarative-2",
          "native-3",
          "patched-3",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 789,
        "browserLaneCount": 9,
        "lanes": [
          "native-1",
          "patched-1",
          "declarative-1",
          "native-2",
          "patched-2",
          "declarative-2",
          "native-3",
          "patched-3",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 1049,
        "browserLaneCount": 9,
        "lanes": [
          "native-1",
          "patched-1",
          "declarative-1",
          "native-2",
          "patched-2",
          "declarative-2",
          "native-3",
          "patched-3",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 1287,
        "browserLaneCount": 9,
        "lanes": [
          "native-1",
          "patched-1",
          "declarative-1",
          "native-2",
          "patched-2",
          "declarative-2",
          "native-3",
          "patched-3",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 1540,
        "browserLaneCount": 9,
        "lanes": [
          "native-1",
          "patched-1",
          "declarative-1",
          "native-2",
          "patched-2",
          "declarative-2",
          "native-3",
          "patched-3",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 1600,
        "browserLaneCount": 3,
        "lanes": [
          "declarative-1",
          "declarative-2",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 1649,
        "browserLaneCount": 3,
        "lanes": [
          "declarative-1",
          "declarative-2",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 1789,
        "browserLaneCount": 3,
        "lanes": [
          "declarative-1",
          "declarative-2",
          "declarative-3"
        ]
      },
      {
        "elapsedMs": 1950,
        "browserLaneCount": 0,
        "lanes": []
      },
      {
        "elapsedMs": 1979,
        "browserLaneCount": 0,
        "lanes": []
      },
      {
        "elapsedMs": 2030,
        "browserLaneCount": 0,
        "lanes": []
      }
    ],
    "totalDeadlineMs": 180000,
    "poolRemainingBudgetMs": 179410,
    "taskTimeoutMs": 60000,
    "poolElapsedMs": 2371,
    "globalTimedOut": false,
    "totalElapsedMs": 2963
  },
  "cleanup": {
    "residual": [],
    "errors": [],
    "verified": true
  },
  "workerResults": [
    {
      "taskId": "native-1",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 1902,
      "outputTruncated": false
    },
    {
      "taskId": "patched-1",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 1838,
      "outputTruncated": false
    },
    {
      "taskId": "declarative-1",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 2225,
      "outputTruncated": false
    },
    {
      "taskId": "native-2",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 1834,
      "outputTruncated": false
    },
    {
      "taskId": "patched-2",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 1832,
      "outputTruncated": false
    },
    {
      "taskId": "declarative-2",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 2160,
      "outputTruncated": false
    },
    {
      "taskId": "native-3",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 1825,
      "outputTruncated": false
    },
    {
      "taskId": "patched-3",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 1823,
      "outputTruncated": false
    },
    {
      "taskId": "declarative-3",
      "exitCode": 0,
      "signal": null,
      "timedOut": false,
      "elapsedMs": 2149,
      "outputTruncated": false
    }
  ],
  "tasks": [
    {
      "taskId": "native-1",
      "lane": "native",
      "repeat": 1,
      "status": "passed",
      "startedAt": "2026-11-12T01:33:32.442Z",
      "completedAt": "2026-11-12T01:33:33.956Z",
      "browserBinary": "stock",
      "driverPackage": "native",
      "headed": true,
      "display": ":88",
      "viewportInput": {
        "width": 1280,
        "height": 900
      },
      "explicitPublicArguments": [
        "--disable-background-networking",
        "--disable-component-update",
        "--disable-sync",
        "--no-first-run",
        "--no-default-browser-check",
        "--password-store=basic",
        "--use-mock-keychain"
      ],
      "controlledDiagnosticArgumentsOmitted": false,
      "reportedBrowserVersion": {
        "protocolVersion": "1.3",
        "product": "Chrome/157.0.8103.50",
        "revision": "@049750111b1e5c11565c792b2aeed5541f332bad",
        "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/157.0.0.0 Safari/537.36",
        "jsVersion": "15.7.112.23"
      },
      "pageObservation": {
        "schema": "issue001204-rendering-v1",
        "pageUrl": "<owned-loopback-origin>/<task-token>/",
        "collectedAt": "2026-11-12T01:33:33.598Z",
        "secureContext": true,
        "identity": {
          "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/157.0.0.0 Safari/537.36",
          "platform": "Linux x86_64",
          "languages": [
            "en-GB",
            "en-US",
            "en"
          ],
          "devicePixelRatio": 1,
          "viewport": {
            "width": 1280,
            "height": 900
          },
          "uaData": {
            "brands": [
              {
                "brand": "Not-A.Brand",
                "version": "99"
              },
              {
                "brand": "Google Chrome",
                "version": "157"
              },
              {
                "brand": "Chromium",
                "version": "157"
              }
            ],
            "mobile": false,
            "platform": "Linux"
          },
          "uaDataHighEntropy": {
            "architecture": "x86",
            "bitness": "64",
            "brands": [
              {
                "brand": "Not-A.Brand",
                "version": "99"
              },
              {
                "brand": "Google Chrome",
                "version": "157"
              },
              {
                "brand": "Chromium",
                "version": "157"
              }
            ],
            "fullVersionList": [
              {
                "brand": "Not-A.Brand",
                "version": "99.0.0.0"
              },
              {
                "brand": "Google Chrome",
                "version": "157.0.8103.50"
              },
              {
                "brand": "Chromium",
                "version": "157.0.8103.50"
              }
            ],
            "mobile": false,
            "platform": "Linux",
            "platformVersion": ""
          }
        },
        "canvas": {
          "status": "available",
          "width": 300,
          "height": 80,
          "byteLength": 96000,
          "rgbaSha256": "26cd080f5b969ee2bda88c26086b834a8463aa87f44f6723185e43778f04aa95",
          "algorithm": {
            "background": "#e5ebf3",
            "rectangle": {
              "color": "#19708e",
              "x": 7,
              "y": 9,
              "width": 57,
              "height": 31
            },
            "circle": {
              "color": "#cc7848",
              "x": 92,
              "y": 32,
              "radius": 19
            },
            "line": {
              "color": "#314666",
              "width": 1.5,
              "from": [
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                72
              ],
              "to": [
                291,
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              ]
            },
            "text": {
              "value": "Owned rendering fixture 001204",
              "font": "16px Arial",
              "color": "#17243a",
              "baseline": "alphabetic",
              "x": 6,
              "y": 65
            },
            "digestInput": "all 300*80*4 RGBA bytes from getImageData, without image encoding"
          }
        },
        "webgl": {
          "status": "available",
          "contexts": [
            {
              "name": "webgl",
              "status": "available",
              "debugRendererInfo": {
                "status": "available",
                "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
                "vendor": "Google Inc. (Google)"
              }
            },
            {
              "name": "webgl2",
              "status": "available",
              "debugRendererInfo": {
                "status": "available",
                "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
                "vendor": "Google Inc. (Google)"
              }
            }
          ],
          "debugRendererAvailable": true
        },
        "fonts": {
          "status": "available",
          "candidates": [
            "Arial",
            "Times New Roman",
            "Courier New",
            "DejaVu Sans",
            "Liberation Sans",
            "Noto Sans"
          ],
          "genericBaselines": [
            "serif",
            "sans-serif",
            "monospace"
          ],
          "text": "mmmmmmmmmmlli WWW 0123456789",
          "fontSizePx": 72,
          "tolerancePx": 0.01,
          "baselines": {
            "serif": 1219.921875,
            "sans-serif": 1292.0625,
            "monospace": 1213.734375
          },
          "observations": [
            {
              "candidate": "Arial",
              "widths": {
                "serif": 1292.0625,
                "sans-serif": 1292.0625,
                "monospace": 1292.0625
              },
              "differences": {
                "serif": 72.140625,
                "sans-serif": 0,
                "monospace": 78.328125
              },
              "candidateHit": true
            },
            {
              "candidate": "Times New Roman",
              "widths": {
                "serif": 1219.921875,
                "sans-serif": 1219.921875,
                "monospace": 1219.921875
              },
              "differences": {
                "serif": 0,
                "sans-serif": -72.140625,
                "monospace": 6.1875
              },
              "candidateHit": true
            },
            {
              "candidate": "Courier New",
              "widths": {
                "serif": 1209.796875,
                "sans-serif": 1209.796875,
                "monospace": 1209.796875
              },
              "differences": {
                "serif": -10.125,
                "sans-serif": -82.265625,
                "monospace": -3.9375
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              "candidateHit": true
            },
            {
              "candidate": "DejaVu Sans",
              "widths": {
                "serif": 1478.8125,
                "sans-serif": 1478.8125,
                "monospace": 1478.8125
              },
              "differences": {
                "serif": 258.890625,
                "sans-serif": 186.75,
                "monospace": 265.078125
              },
              "candidateHit": true
            },
            {
              "candidate": "Liberation Sans",
              "widths": {
                "serif": 1292.0625,
                "sans-serif": 1292.0625,
                "monospace": 1292.0625
              },
              "differences": {
                "serif": 72.140625,
                "sans-serif": 0,
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              },
              "candidateHit": true
            },
            {
              "candidate": "Noto Sans",
              "widths": {
                "serif": 1219.921875,
                "sans-serif": 1292.0625,
                "monospace": 1213.734375
              },
              "differences": {
                "serif": 0,
                "sans-serif": 0,
                "monospace": 0
              },
              "candidateHit": false
            }
          ],
          "interpretation": "candidate-font width hits against three generic fallbacks; not an enumeration of installed fonts"
        },
        "audio": {
          "status": "available",
          "channels": 1,
          "length": 5000,
          "sampleRate": 44100,
          "oscillator": {
            "type": "triangle",
            "frequencyHz": 10000,
            "startSeconds": 0
          },
          "compressor": {
            "threshold": -50,
            "knee": 40,
            "ratio": 12,
            "attack": 0,
            "release": 0.25
          },
          "sampleByteLength": 20000,
          "sampleBytesSha256": "0d6f33df90bb7c70e12339d9c128f988eee40e58e1c53912b0df4445f927e95e",
          "byteOrder": "little-endian",
          "last500AbsoluteSum": 124.04347776696522
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      },
      "serverCounts": {
        "pageGets": 1,
        "resultPosts": 1,
        "otherRequests": 0
      },
      "unavailable": [],
      "contextClosed": true,
      "observationConsumable": true
    },
    {
      "taskId": "patched-1",
      "lane": "patched",
      "repeat": 1,
      "status": "passed",
      "startedAt": "2026-11-12T01:33:32.445Z",
      "completedAt": "2026-11-12T01:33:33.986Z",
      "browserBinary": "stock",
      "driverPackage": "patched",
      "headed": true,
      "display": ":88",
      "viewportInput": {
        "width": 1280,
        "height": 900
      },
      "explicitPublicArguments": [
        "--disable-background-networking",
        "--disable-component-update",
        "--disable-sync",
        "--no-first-run",
        "--no-default-browser-check",
        "--password-store=basic",
        "--use-mock-keychain"
      ],
      "controlledDiagnosticArgumentsOmitted": false,
      "reportedBrowserVersion": {
        "protocolVersion": "1.3",
        "product": "Chrome/157.0.8103.50",
        "revision": "@049750111b1e5c11565c792b2aeed5541f332bad",
        "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/157.0.0.0 Safari/537.36",
        "jsVersion": "15.7.112.23"
      },
      "pageObservation": {
        "schema": "issue001204-rendering-v1",
        "pageUrl": "<owned-loopback-origin>/<task-token>/",
        "collectedAt": "2026-11-12T01:33:33.597Z",
        "secureContext": true,
        "identity": {
          "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/157.0.0.0 Safari/537.36",
          "platform": "Linux x86_64",
          "languages": [
            "en-GB",
            "en-US",
            "en"
          ],
          "devicePixelRatio": 1,
          "viewport": {
            "width": 1280,
            "height": 900
          },
          "uaData": {
            "brands": [
              {
                "brand": "Not-A.Brand",
                "version": "99"
              },
              {
                "brand": "Google Chrome",
                "version": "157"
              },
              {
                "brand": "Chromium",
                "version": "157"
              }
            ],
            "mobile": false,
            "platform": "Linux"
          },
          "uaDataHighEntropy": {
            "architecture": "x86",
            "bitness": "64",
            "brands": [
              {
                "brand": "Not-A.Brand",
                "version": "99"
              },
              {
                "brand": "Google Chrome",
                "version": "157"
              },
              {
                "brand": "Chromium",
                "version": "157"
              }
            ],
            "fullVersionList": [
              {
                "brand": "Not-A.Brand",
                "version": "99.0.0.0"
              },
              {
                "brand": "Google Chrome",
                "version": "157.0.8103.50"
              },
              {
                "brand": "Chromium",
                "version": "157.0.8103.50"
              }
            ],
            "mobile": false,
            "platform": "Linux",
            "platformVersion": ""
          }
        },
        "canvas": {
          "status": "available",
          "width": 300,
          "height": 80,
          "byteLength": 96000,
          "rgbaSha256": "26cd080f5b969ee2bda88c26086b834a8463aa87f44f6723185e43778f04aa95",
          "algorithm": {
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              "color": "#19708e",
              "x": 7,
              "y": 9,
              "width": 57,
              "height": 31
            },
            "circle": {
              "color": "#cc7848",
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              "y": 32,
              "radius": 19
            },
            "line": {
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              "width": 1.5,
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              ],
              "to": [
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            },
            "text": {
              "value": "Owned rendering fixture 001204",
              "font": "16px Arial",
              "color": "#17243a",
              "baseline": "alphabetic",
              "x": 6,
              "y": 65
            },
            "digestInput": "all 300*80*4 RGBA bytes from getImageData, without image encoding"
          }
        },
        "webgl": {
          "status": "available",
          "contexts": [
            {
              "name": "webgl",
              "status": "available",
              "debugRendererInfo": {
                "status": "available",
                "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
                "vendor": "Google Inc. (Google)"
              }
            },
            {
              "name": "webgl2",
              "status": "available",
              "debugRendererInfo": {
                "status": "available",
                "renderer": "ANGLE (Google, Vulkan 1.3.0 (SwiftShader Device (Subzero) (0x0000C0DE)), SwiftShader driver)",
                "vendor": "Google Inc. (Google)"
              }
            }
          ],
          "debugRendererAvailable": true
        },
        "fonts": {
          "status": "available",
          "candidates": [
            "Arial",
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                "brand": "Chromium",
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          "frequencyHz": 10000,
          "startSeconds": 0
        },
        "compressor": {
          "threshold": -50,
          "knee": 40,
          "ratio": 12,
          "attack": 0,
          "release": 0.25
        },
        "sampleByteLength": 20000,
        "sampleBytesSha256": "0d6f33df90bb7c70e12339d9c128f988eee40e58e1c53912b0df4445f927e95e",
        "byteOrder": "little-endian",
        "last500AbsoluteSum": 124.04347776696522
      },
      {
        "taskId": "declarative-3",
        "lane": "declarative",
        "repeat": 3,
        "status": "available",
        "channels": 1,
        "length": 5000,
        "sampleRate": 44100,
        "oscillator": {
          "type": "triangle",
          "frequencyHz": 10000,
          "startSeconds": 0
        },
        "compressor": {
          "threshold": -50,
          "knee": 40,
          "ratio": 12,
          "attack": 0,
          "release": 0.25
        },
        "sampleByteLength": 20000,
        "sampleBytesSha256": "0d6f33df90bb7c70e12339d9c128f988eee40e58e1c53912b0df4445f927e95e",
        "byteOrder": "little-endian",
        "last500AbsoluteSum": 124.04347776696522
      }
    ]
  },
  "repeats": {
    "native": {
      "completed": 3,
      "consumable": true,
      "distinctCanvasDigests": [
        "26cd080f5b969ee2bda88c26086b834a8463aa87f44f6723185e43778f04aa95"
      ],
      "distinctAudioDigests": [
        "0d6f33df90bb7c70e12339d9c128f988eee40e58e1c53912b0df4445f927e95e"
      ]
    },
    "patched": {
      "completed": 3,
      "consumable": true,
      "distinctCanvasDigests": [
        "26cd080f5b969ee2bda88c26086b834a8463aa87f44f6723185e43778f04aa95"
      ],
      "distinctAudioDigests": [
        "0d6f33df90bb7c70e12339d9c128f988eee40e58e1c53912b0df4445f927e95e"
      ]
    },
    "declarative": {
      "completed": 3,
      "consumable": true,
      "distinctCanvasDigests": [
        "0119c1c2e0409d600afae2ebfd1e20444fd7abe5c29c6429125e612bd1ebd920"
      ],
      "distinctAudioDigests": [
        "0d6f33df90bb7c70e12339d9c128f988eee40e58e1c53912b0df4445f927e95e"
      ]
    }
  },
  "controlledSourceManifest": [
    {
      "fileLabel": "render-comparison.mjs",
      "sha256": "c3c70d87bc6bf39df55b892bea255d49ac2f08f9611bfc7ea0aaca40e128b7d6"
    },
    {
      "fileLabel": "probe_supervisor_1204.mjs",
      "sha256": "aaaf43a51540167909f31055d04806479ceaa529bd3d07d5244de91dbf90fb01"
    },
    {
      "fileLabel": "probe_worker_1204.mjs",
      "sha256": "5771fdfbc4130eda465cc168c9b4b78ec4ccd812e2842e054be506ec51257d7b"
    },
    {
      "fileLabel": "render-fixture.html",
      "sha256": "6ae3caf92cc7f348bf799fe86b50345e6425958d341355565a4f2dd392671095"
    }
  ],
  "runHistory": [
    {
      "stage": "initial-run",
      "rawArtifactLabel": "result-first.json",
      "rawArtifactSha256": "d6408346d64c747566695491e7f02931703d8e0a2e1601fbfe75ab0a2daa531e",
      "ranAt": "2026-11-12T01:30:08.285Z",
      "completedAt": "2026-11-12T01:30:11.159Z",
      "status": "incomplete",
      "comparisonPermitted": false,
      "peakActive": 9,
      "peakBrowserLanes": 9,
      "cleanup": {
        "residual": [],
        "errors": [],
        "verified": true
      },
      "explanation": "Native and patched tasks passed. Declarative page observations and Windows identity checks were available, but all three required runtime profile-load log categories were absent. Those declarative observations were not accepted for comparison.",
      "tasks": [
        {
          "taskId": "native-1",
          "status": "passed",
          "observationConsumable": true
        },
        {
          "taskId": "patched-1",
          "status": "passed",
          "observationConsumable": true
        },
        {
          "taskId": "declarative-1",
          "status": "profile-setup-failed",
          "observationConsumable": false,
          "loadingObserved": false,
          "decryptionObserved": false,
          "loadedObserved": false,
          "identityChecks": {
            "chrome157": true,
            "windowsUserAgent": true,
            "win32Platform": true,
            "windowsUaData": true
          }
        },
        {
          "taskId": "native-2",
          "status": "passed",
          "observationConsumable": true
        },
        {
          "taskId": "patched-2",
          "status": "passed",
          "observationConsumable": true
        },
        {
          "taskId": "declarative-2",
          "status": "profile-setup-failed",
          "observationConsumable": false,
          "loadingObserved": false,
          "decryptionObserved": false,
          "loadedObserved": false,
          "identityChecks": {
            "chrome157": true,
            "windowsUserAgent": true,
            "win32Platform": true,
            "windowsUaData": true
          }
        },
        {
          "taskId": "native-3",
          "status": "passed",
          "observationConsumable": true
        },
        {
          "taskId": "patched-3",
          "status": "passed",
          "observationConsumable": true
        },
        {
          "taskId": "declarative-3",
          "status": "profile-setup-failed",
          "observationConsumable": false,
          "loadingObserved": false,
          "decryptionObserved": false,
          "loadedObserved": false,
          "identityChecks": {
            "chrome157": true,
            "windowsUserAgent": true,
            "win32Platform": true,
            "windowsUaData": true
          }
        }
      ]
    },
    {
      "stage": "intermediate-log-routing-correction",
      "status": "profile-setup-failed",
      "comparisonPermitted": false,
      "provenance": "Issue 001204 living record progress entries 46-48",
      "livingRecordSha256": "847389a7bec306a18c82048e47c8abf187b255c16c7fc2726786c67b8a7ca8a8",
      "explanation": "Routing logs to stderr did not supply the required three runtime load categories; it was not treated as a successful experiment or a root-cause finding. The intermediate raw run is not included in this public derivative."
    },
    {
      "stage": "final-runtime-evidence-correction",
      "rawArtifactSha256": "03f2ef06614c359a5955c274dd1daad5a5d464566f855cf6924e4c94e4bed776",
      "changedInput": "Verbose logging was explicitly enabled with --v=1; the same browser, profile and measurement algorithms were retained.",
      "status": "passed",
      "comparisonPermitted": true,
      "explanation": "Only the final nine-task result has complete encrypted-profile runtime loading evidence and is used for numerical comparison."
    }
  ],
  "redaction": {
    "retained": "All nine page observations and the four raw-value tables, exact numeric widths and differences, algorithms, digests, candidate lists, per-repeat results, browser/package metadata hashes, resource and concurrency measurements, cleanup, profile-load booleans and log hashes.",
    "removed": [
      "Private absolute input, workspace and log paths",
      "Owned loopback addresses, ports and per-task tokens",
      "Raw PID/PGID records and process command lines",
      "Raw profile-loading log lines and controlled diagnostic arguments",
      "Raw worker stdout/stderr"
    ],
    "mapping": {
      "tasks[i].pageObservation": "raw tasks[i].pageObservation with only pageUrl replaced by a symbolic owned-loopback label",
      "rawValueTables.canvas/webgl/fonts/audio[j]": "raw tasks[j].pageObservation[table-name], copied without numeric changes",
      "inputs.stock / inputs.botbrowser": "raw environment stock / botbrowser executable metadata, mapped to symbolic binary aliases",
      "inputs.native / inputs.patched": "raw environment nativePackage / patchedPackage, excluding installation paths",
      "tasks[i].profileLoadEvidence": "raw runtimeProfileEvidence and profileLoadLogs reduced to direct booleans, counts and SHA-256",
      "cleanup": "raw pool.cleanup; final residual and error arrays are empty",
      "controlledSourceManifest": "raw fixtureSources with private path replaced by basename"
    }
  },
  "limitations": [
    "BotBrowser has a different executable/full version and a Windows-target profile on Ubuntu. Differences cannot uniquely identify an implementation layer or the effect of the profile.",
    "Canvas and audio digests describe only the frozen inputs and implementation. Repeat differences are retained without assuming lane equality or inequality.",
    "Font observations cover six fixed candidates and width differences against three generic baselines; they do not enumerate installed fonts.",
    "No result establishes request authorization, detection outcomes, IP reputation, identity or cross-device consistency.",
    "HTTP loopback is a potentially trustworthy origin for WebCrypto. No third-party page, proxy or credentials are used.",
    "The supervisor deadline stops execution at 180 seconds; bounded TERM/KILL and residual verification may add cleanup time. Workspaces and result files are retained for inspection.",
    "The public runnable fixture reproduces only page values with the public profile option. It does not reproduce or certify the controlled run runtime-loading audit.",
    "Package SHA fields identify package.json bytes, not a full package tarball or dependency tree.",
    "Requested viewport was 1280x900 in all lanes; the Windows-target declarative page reported 1288x944. Both requested and observed dimensions are retained as configuration evidence.",
    "Native and patched render values being equal here does not prove all APIs, execution contexts, launch settings or destination decisions are equal."
  ]
}
