{
  "scope": "Explicit fictional author-defined worksheet: actual CSV reads and model calculations only, not vendor UI/import/reconciliation, bank samples, actual fees/rates/FX or native exported schema. Unknown relationships remain unknown.",
  "supplier_S1_EUR_2026": {
    "gross_paid": "160",
    "refunds_received": "30",
    "net_cash_paid": "130"
  },
  "excluded": [
    "U1: supplier unknown EUR20",
    "G1: separate GBP50"
  ],
  "join_negative_control": "B1 duplicated across allocation rows becomes200; original bank event100 and allocations60+40 are distinct levels.",
  "separate_agreement_remaining_not_observed_eur": "10",
  "same_cutoff_ap_eur": "40",
  "same_cutoff_supplier_eur": "60",
  "difference_eur": "20",
  "difference_basis": "Missing recognition of Credit C2 explicitly given by case, not inferred from amount."
}