{
  "title": "Secondary nonferrous metal data for AI receipt and output evidence",
  "source_page": "https://fiund.com/industries/recycled-nonferrous-receipt-output-data",
  "authorship": "Original fictional Fiund editorial exercise. No actual operating records or third-party source assets are included.",
  "example": {
    "title": "A receipt's identity persists without an output assay",
    "context": "A fictional ledger represents receipts and output records with paper tokens.",
    "records": [
      [
        "1",
        "Receipt index",
        "Incoming R7 and R8 recorded separately."
      ],
      [
        "2",
        "Charge ledger",
        "Output lot O2 linked to both R7 and R8; quantities not listed."
      ],
      [
        "3",
        "Output sample index",
        "Report Q2 applies to O2 as a whole."
      ]
    ],
    "question": "Can Q2 be labeled as an assay of R7?",
    "answer": "No. Records 1 and 2 distinguish two incoming receipts that contribute to O2. Q2 in record 3 is scoped to the output, not either receipt separately. Retain both input lineage edges and avoid allocating the output result or quantities back to R7.",
    "failureModes": [
      "Attributing a combined result to each incoming lot",
      "Inferring contribution weights from number of receipts"
    ],
    "fields": [
      [
        "receipt_key",
        "Identifies source lots independently"
      ],
      [
        "output_lot",
        "Groups mixed output evidence"
      ],
      [
        "contribution_quantity_status",
        "Makes missing attribution explicit"
      ]
    ],
    "holdout": "Include a receipt recorded in intake but never linked in the charge ledger; exclude it from the output lineage.",
    "boundary": "No real source supplier data, metal processing steps, composition values or traceability guarantees."
  }
}