{
  "schema_id": "la.archive.living-performance.v1",
  "schema_version": 1,
  "pack_id": "perf-ex-001",
  "created_at": "2026-07-26T00:00:00.000Z",
  "kpis": [
    {
      "kpi_id": "kpi-survival-001",
      "metric_class": "survival_rate",
      "target": ">= 90%",
      "unit": "percent",
      "scope_note": "Street trees year 3 post-installation"
    }
  ],
  "measurement": {
    "method_class": "survey",
    "reporting_period": "2026-07-01/2029-06-30",
    "method_note": "Annual arborist inspection with tagged instances"
  },
  "tla185_refs": {
    "record_id": null,
    "field_paths": ["sustainability.performance_claim"]
  }
}