{
  "title": "Engine manufacturing data for AI specimen and test-record links",
  "source_page": "https://fiund.com/industries/engine-part-test-specimen-link-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A specimen was relabeled, not resampled",
    "context": "The fictional packet contains serial relationships only. It models no engine, part characteristics or real testing.",
    "records": [
      [
        "1",
        "Transfer log",
        "Specimen S7 from mock part P9; relabeled S7B at receipt."
      ],
      [
        "2",
        "Report index",
        "Result stub names S7B."
      ],
      [
        "3",
        "Audit note",
        "No new specimen event was logged."
      ]
    ],
    "question": "How many specimens should be counted, and what is the source link?",
    "answer": "Count one specimen from P9. Record 1 explicitly maps S7 to S7B as a relabel, and record 2 names the new key. Record 3 does not support a second collection. Retain both aliases for lookup without duplicating the physical specimen.",
    "failureModes": [
      "Counting two labels as two specimens",
      "Dropping lineage when the reported ID differs from the collection ID"
    ],
    "fields": [
      [
        "canonical_specimen",
        "Represents one physical object"
      ],
      [
        "label_history",
        "Maps prior and current identifiers"
      ],
      [
        "source_part_serial",
        "Preserves specimen origin"
      ]
    ],
    "holdout": "Use a similar code that actually denotes a split child with a new event; distinguish relabeling from subdivision.",
    "boundary": "No engine design, actual testing, part qualification, real serials or repair guidance."
  }
}