{
  "fixture": "synthetic",
  "source": "outcomes-warehouse",
  "as_of": "2026-09-02T09:02:00Z",
  "rows": [
    {"campaign_id": "C-101", "verified_users": 3120},
    {"campaign_id": "C-102", "verified_users": 2480},
    {"campaign_id": "C-103", "verified_users": 2210}
  ]
}