{
  "title": "Transformer data for AI nameplate and unit references",
  "source_page": "https://fiund.com/industries/transformer-nameplate-unit-reference-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "The nameplate serial selects the correct report",
    "context": "Original neutral nameplate drawings contain only invented identity fields, with no electrical values.",
    "records": [
      [
        "1",
        "Plate photo",
        "Model T4, serial S12 visible."
      ],
      [
        "2",
        "Register",
        "Two model T4 units, S12 and S21."
      ],
      [
        "3",
        "Report index",
        "R7 for S21; R9 for S12."
      ]
    ],
    "question": "Which report is associated with the pictured unit?",
    "answer": "R9 is tied to serial S12 by record 3, and record 1 makes S12 legible on the plate. The model T4 is shared under record 2, so it cannot disambiguate R7 and R9. This establishes a document link only.",
    "failureModes": [
      "Transposing S12 and S21",
      "Selecting by shared model rather than unit serial"
    ],
    "fields": [
      [
        "nameplate_serial",
        "Identifies the observed unit"
      ],
      [
        "report_subject",
        "Binds the report to its exact serial"
      ],
      [
        "plate_visibility",
        "Gates direct verification"
      ]
    ],
    "holdout": "Occlude the last digit of S12 and require a second source rather than picking the nearest identifier.",
    "boundary": "No real nameplates, voltage or power values, electrical work or equipment ratings."
  }
}