{
  "receipt": "obs-receipt/1.0",
  "id": "ioda-ir-household-est-20260815",
  "issued_at": "2026-08-15T15:00:00Z",
  "kind": "derived",
  "layer": "household-access",
  "claims_about": "population",
  "source": {
    "name": "IODA country-event feed (BGP events) + operator estimate",
    "ref": "https://ioda.inetintel.cc.gatech.edu/",
    "retrieved_at": "2026-08-15T14:40:00Z",
    "hand": "second"
  },
  "window": { "start": "2026-08-15T06:15:00Z", "end": "2026-08-15T14:40:00Z" },
  "geography": { "scope": "country", "code": "IR" },
  "measure": { "metric": "estimated-households-unreachable", "numerator": 1200000, "denominator": 26000000, "unit": "users" },
  "confidence": { "label": "low", "reason": "coupling model is a coarse prefix-to-household mapping; last-mile topology drift unaccounted" },
  "valid_until": "2026-08-17T00:00:00Z",
  "coupling": {
    "model": "Reachable /24 prefixes in-country are assumed proportional to household reachability at 1 prefix-visibility-unit ~= a fixed household share estimated from the Aug-10 baseline snapshot; ignores NAT pooling and last-mile congestion.",
    "from_layer": "transport-prefix",
    "to_layer": "household-access",
    "valid_until": "2026-08-17T00:00:00Z",
    "divergence_log": "https://github.com/ralftpaw/civilian-coordination/issues/12#issuecomment-checkpoints"
  }
}