{
  "title": "Pressed and blown glass data for AI cavity and view matching",
  "source_page": "https://fiund.com/industries/molded-glass-cavity-view-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A mark repeats in part coordinates, not pixels",
    "context": "An owned clear prop and fictional cavity stamps appear in rotated images. The exercise tests coordinate mapping, not root cause.",
    "records": [
      [
        "1",
        "Stamp map",
        "Circle identifies cavity C4; square identifies C5."
      ],
      [
        "2",
        "Image 1",
        "Circle stamp, spot one mark clockwise from stamp."
      ],
      [
        "3",
        "Image 2",
        "Rotated view of same specimen, circle visible; spot still one mark clockwise in specimen frame."
      ]
    ],
    "question": "What persistent observation should be recorded?",
    "answer": "Both images support the same spot at one mark clockwise from the C4 circle, using the stamp map in record 1 and the object-relative position in records 2 and 3. Count it once for this specimen. The evidence does not establish a cavity-wide cause.",
    "failureModes": [
      "Counting each view as a separate physical defect",
      "Inferring cavity root cause from one specimen"
    ],
    "fields": [
      [
        "cavity_stamp",
        "Links the view to the fictional cavity"
      ],
      [
        "relative_mark_offset",
        "Aligns through rotation"
      ],
      [
        "specimen_group",
        "Deduplicates multiple views of one part"
      ]
    ],
    "holdout": "Use another C4 specimen with a different spot; keep the shared cavity label but distinct defect events.",
    "boundary": "No real mold parameters, glass recipes, manufacturing root-cause claims or customer acceptance."
  }
}