{
  "custodian_name": "Example Custodian - synthetic",
  "voucher_reference": "DEMO-VOUCHER-0042",
  "expense_date": "2026-09-30",
  "purpose_text": "Example service described in the source.",
  "cost_center": "DEMO-OPS",
  "amount": 1250,
  "currency_code": "USD"
}