{
  "schema_version": "2.0",
  "sample_id": "egxo-commercial-four-view-work-event",
  "status": "publishable",
  "activity_label": "Commercial garment inspection and sorting",
  "source_contract": {
    "original_camera_files": 4,
    "source_resolution": "1920x1080 each",
    "derivative_build": "Directly from the four original camera files; not upscaled from the prior 960x540 website preview."
  },
  "alignment": {
    "status": "passed",
    "visible_event": "Worker lifts the lavender polo, exposes the collar and tags, then inspects and sorts the same garment across all four views.",
    "method": "Filename-seeded offsets; external views verified by audio cross-correlation, POV verified by 30 FPS motion-energy correlation, then reviewed frame by frame.",
    "observed_tolerance_ms": 200,
    "offsets_seconds": {
      "pov": 78,
      "frontal": 13.619625,
      "side": 34,
      "whole-body": 57.455375
    },
    "limitation": "Visually aligned multi-view derivative; not hardware timecode synchronization or calibrated sensor fusion."
  },
  "privacy": {
    "status": "passed",
    "review_note": "All 360 native-HD source-derived frames and all 360 encoded master frames were reviewed in order. The 1080p website derivative then passed a complete decode, all-frame mask-opacity checks, all-frame face detection and all-frame QR detection. Audio and source metadata were removed. Automated detection is supplementary only.",
    "audio_removed": true,
    "source_metadata_removed": true,
    "redaction_method": "Reviewed frame-indexed solid identity masks plus retained solid and irreversible mosaic masks in native 960x540 output-tile coordinates.",
    "redactions": [
      {
        "role": "pov",
        "mode": "solid",
        "purpose": "Embedded camera watermark redaction",
        "x": 350,
        "y": 490,
        "width": 300,
        "height": 50,
        "start": 0,
        "end": 15
      },
      {
        "role": "pov",
        "mode": "irreversible_mosaic",
        "purpose": "Identifier and reflection region redaction",
        "x": 60,
        "y": 280,
        "width": 220,
        "height": 200,
        "start": 0,
        "end": 15
      },
      {
        "role": "frontal",
        "mode": "solid",
        "purpose": "Embedded camera watermark redaction",
        "x": 370,
        "y": 490,
        "width": 300,
        "height": 50,
        "start": 0,
        "end": 15
      },
      {
        "role": "whole-body",
        "mode": "solid",
        "purpose": "Identifier and reflection region redaction",
        "x": 0,
        "y": 0,
        "width": 360,
        "height": 470,
        "start": 0,
        "end": 15
      },
      {
        "role": "frontal",
        "mode": "solid",
        "type": "frame_indexed_track",
        "purpose": "Identity redaction",
        "coordinate_space": "native 960x540 output tile",
        "frame_count": 360,
        "padding_pixels": {
          "x": 12,
          "y": 10
        },
        "seed_frames": [
          0
        ],
        "box_width_range_pixels": [
          87,
          199
        ],
        "box_height_range_pixels": [
          52,
          142
        ],
        "method": "Apple Vision object tracking with a reviewed native-HD seed box."
      },
      {
        "role": "side",
        "mode": "solid",
        "type": "frame_indexed_track",
        "purpose": "Identity redaction",
        "coordinate_space": "native 960x540 output tile",
        "frame_count": 360,
        "padding_pixels": {
          "x": 0,
          "y": 0
        },
        "seed_frames": [
          0
        ],
        "box_width_range_pixels": [
          97,
          187
        ],
        "box_height_range_pixels": [
          93,
          159
        ],
        "method": "Apple Vision face detections with reviewed per-frame interpolation and a reviewed object-track bridge through the fast-motion detector gap."
      },
      {
        "role": "whole-body",
        "mode": "solid",
        "type": "frame_indexed_track",
        "purpose": "Identity redaction",
        "coordinate_space": "native 960x540 output tile",
        "frame_count": 360,
        "padding_pixels": {
          "x": 0,
          "y": 0
        },
        "seed_frames": [
          0,
          137
        ],
        "box_width_range_pixels": [
          71,
          127
        ],
        "box_height_range_pixels": [
          61,
          122
        ],
        "method": "Apple Vision object tracking for leading frames, then Apple Vision face detections with reviewed per-frame interpolation."
      }
    ],
    "validation": {
      "decoded_frame_count": 360,
      "reviewed_frame_count": 360,
      "review_scope": "all_frames",
      "review_method": "Six ordered full-composite sheets, eighteen ordered role-specific head-detail sheets and eighteen complete-role overview sheets account for every source-derived frame; the final encoded master was reviewed again through the same 42-sheet, 360-frame sequence. The website derivative was then mechanically revalidated across all 360 frames.",
      "automated_detection_role": "supplementary_only",
      "track_manifest_sha256": "80eda81d1f6c5a6b84f45e88899497de0924cc565d39441bf400aa0f2e150f29",
      "encoded_mask_opacity": {
        "checked_frames": 360,
        "checked_face_boxes": 1080,
        "threshold": 32,
        "track_checks": [
          {
            "role": "frontal",
            "maximum_luma_inside_mask_inset": 2,
            "passed": true
          },
          {
            "role": "side",
            "maximum_luma_inside_mask_inset": 3,
            "passed": true
          },
          {
            "role": "whole-body",
            "maximum_luma_inside_mask_inset": 2,
            "passed": true
          }
        ],
        "passed": true
      },
      "face_detection": {
        "method": "macOS Vision VNDetectFaceRectanglesRequest on every website-derivative frame",
        "checked_frames": 360,
        "frames_with_face_candidates": 0,
        "errors": 0,
        "passed": true
      },
      "qr_detection": {
        "method": "OpenCV QRCodeDetector on every website-derivative frame",
        "checked_frames": 360,
        "frames_with_geometry_candidates": 10,
        "decoded_payload_alerts": 0,
        "ordered_candidate_review": "passed",
        "finding": "Geometry-only candidates are garment folds, product tags or scene edges; no visible or decodable QR payload.",
        "passed": true
      },
      "full_decode_passed": true,
      "website_derivative_revalidated": true
    },
    "native_hd_rebuild": {
      "reason": "The prior 960x540 site asset did not preserve the quality of the original 1080p camera files.",
      "action": "The event was rebuilt directly from the four original camera files with native-HD frame-indexed identity masks, then separately encoded for website delivery without changing the 1920x1080 geometry.",
      "dynamic_identity_masks": [
        {
          "role": "frontal",
          "box_width_range_pixels": [
            87,
            199
          ],
          "box_height_range_pixels": [
            52,
            142
          ]
        },
        {
          "role": "side",
          "box_width_range_pixels": [
            97,
            187
          ],
          "box_height_range_pixels": [
            93,
            159
          ]
        },
        {
          "role": "whole-body",
          "box_width_range_pixels": [
            71,
            127
          ],
          "box_height_range_pixels": [
            61,
            122
          ]
        }
      ]
    },
    "boundary": "Exhaustive visual review plus automated checks materially reduces privacy risk but is not an independent privacy certification. Garment product tags are not treated as personal data; commercial sensitivity must be assessed separately by the dataset owner."
  },
  "views": [
    {
      "role": "pov",
      "selected_offset_seconds": 78
    },
    {
      "role": "frontal",
      "selected_offset_seconds": 13.619625
    },
    {
      "role": "side",
      "selected_offset_seconds": 34
    },
    {
      "role": "whole-body",
      "selected_offset_seconds": 57.455375
    }
  ],
  "source_fingerprints_withheld": true,
  "output": {
    "video": "egxo-commercial-garment-inspection-four-view.mp4",
    "poster": "egxo-commercial-garment-inspection-four-view.jpg",
    "duration_seconds": 15,
    "width": 1920,
    "height": 1080,
    "frame_rate_fps": 24,
    "frame_count": 360,
    "audio_streams": 0,
    "codec": "h264",
    "profile": "High",
    "pixel_format": "yuv420p",
    "fast_start": true,
    "encoding_role": "native-resolution website delivery derivative of the approved 1080p master",
    "approved_master_sha256": "f69011a9ee47f442a4dd249b39a3887813e47eb5e98598821bd47fe68d3c6656",
    "approved_master_size_bytes": 57628096,
    "cloudflare_static_asset_limit_bytes": 26214400,
    "size_bytes": 25015385,
    "sha256": "2acd9f7998ad59bcd5f6d3cc8c598599d8a995e0d191b9cb326d76be6b94fb3d",
    "poster_size_bytes": 715127,
    "poster_sha256": "e9e896d99be652470e90acac7e92647a9f6cacb1740c8326a3da247bc4e8c6fd"
  },
  "limitations": [
    "This derivative demonstrates one reviewed work event, not the breadth of the complete commercial inventory.",
    "Commercial capture setting and commercial-use rights are separate; permitted use requires a written license.",
    "Camera calibration and geometric correspondence are not implied unless separately documented."
  ],
  "provenance_boundary": "This public evidence record withholds restricted source filenames, storage identifiers and source fingerprints. It describes the reviewed derivative and does not establish consent, ownership, licensing, or commercial-use rights.",
  "generated_at": "2026-08-11T15:16:49Z"
}