{
  "receipt": "obs-receipt/1.2",
  "id": "panel-s1-derived-20261004",
  "issued_at": "2026-10-04T15:00:00Z",
  "kind": "derived",
  "layer": "access-report",
  "claims_about": "population",
  "source": {
    "name": "help-desk ticket aggregation built on the s1 household estimate",
    "retrieved_at": "2026-10-04T14:40:00Z",
    "hand": "second"
  },
  "window": { "start": "2026-10-04T06:00:00Z", "end": "2026-10-04T14:40:00Z" },
  "geography": { "scope": "country", "code": "S1" },
  "measure": { "metric": "estimated-users-affected", "numerator": 30000, "denominator": 850000, "unit": "users" },
  "valid_until": "2026-10-08T00:00:00Z",
  "depends_on": ["ioda-s1-household-est-20261004"],
  "coupling": {
    "model": "Ticket volume assumed proportional to unreachable households; bounded at 20% relative error.",
    "from_layer": "household-access",
    "to_layer": "access-report",
    "valid_until": "2026-10-08T00:00:00Z",
    "declared_bounds": { "margin_rel": 0.2, "on_metric": "tickets-per-thousand-affected" },
    "observed": [
      { "t": "2026-10-04T10:00:00Z", "predicted": 42, "actual": 45 },
      { "t": "2026-10-04T12:00:00Z", "predicted": 44, "actual": 40 }
    ],
    "on_violation": { "action": "halt", "remediation_window": "PT12H" }
  },
  "notes": "Clean in isolation; inherits the upstream breach via depends_on."
}