{
  "title": "Flat glass manufacturing data for AI sheet and side continuity",
  "source_page": "https://fiund.com/industries/flat-glass-ribbon-side-map-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A flipped sample keeps its source side",
    "context": "A transparency mockup represents a fictional ribbon. Its two faces carry removable shape markers.",
    "records": [
      [
        "1",
        "Ribbon map",
        "Square identifies surface A; triangle identifies surface B."
      ],
      [
        "2",
        "Sampling note",
        "Specimen R3 flipped between capture 1 and capture 2."
      ],
      [
        "3",
        "Capture 2",
        "Triangle facing camera; dark dot visible in focus on that face."
      ]
    ],
    "question": "Which source side gets the dot observation?",
    "answer": "Assign the observed dot to surface B based on the triangle in records 1 and 3. Record 2 explains why the face presented to the camera changed. A capture sequence number or the current top position does not redefine the original surface label.",
    "failureModes": [
      "Calling the currently upper surface A by convention",
      "Treating a flip as changing the source-side identity"
    ],
    "fields": [
      [
        "ribbon_surface_id",
        "Preserves original side across handling"
      ],
      [
        "flip_event",
        "Connects the two capture states"
      ],
      [
        "marker_visible",
        "Provides a visual basis for assignment"
      ]
    ],
    "holdout": "Put a dot on the far surface visible through the mockup; require focus or another view to disambiguate its side.",
    "boundary": "No real float-glass process conditions, compositions, buyer specifications or defect grades."
  }
}