{
  "title": "Metal closure data for AI orientation and tooling records",
  "source_page": "https://fiund.com/industries/stamped-metal-closure-orientation-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A tab feature distinguishes a flip from a turn",
    "context": "An original closure stencil uses two asymmetrical tabs and a marked face.",
    "records": [
      [
        "1",
        "Drawing",
        "Mark up: short tab clockwise from the locator; long tab counterclockwise."
      ],
      [
        "2",
        "Image",
        "Mark up and locator visible; short tab counterclockwise."
      ],
      [
        "3",
        "Capture log",
        "Frame is not mirrored."
      ]
    ],
    "question": "Can rotation alone explain the visible tab order?",
    "answer": "No. Rotation would preserve clockwise order relative to the locator. The view in records 2 and 3 reverses the short tab's position under the same face reference from record 1. Label a handed-geometry discrepancy without assigning a cause.",
    "failureModes": [
      "Comparing absolute image angles instead of relative order",
      "Treating handedness reversal as a simple rotation"
    ],
    "fields": [
      [
        "reference_face",
        "Prevents comparing opposite views"
      ],
      [
        "locator_direction",
        "Anchors angular order"
      ],
      [
        "tab_sequence",
        "Stores handed feature relationships"
      ]
    ],
    "holdout": "Use a mirrored frame identified by reversed printed text; correct the view before comparing geometry.",
    "boundary": "No authentic closure tooling, sealing specifications, actual die data or customer designs."
  }
}