{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-trailhead-convict-lake-open-status-20260925",
        "evidence_ids": [
          "evidence-convict-lake-open-status-20260925"
        ],
        "predicate": "trip_date_operational_status",
        "spatial_scope_ids": [],
        "subject_id": "trailhead-convict-lake",
        "temporal_scope": {
          "ends_on": "2026-09-25",
          "starts_on": "2026-09-25"
        },
        "value": {
          "potable_water_current_status": "not_stated",
          "restroom_current_status": "not_stated",
          "retrieved_on": "2026-09-25",
          "trailhead_status": "open"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-trailhead-convict-lake-open-status-20260925",
          "evidence_id": "evidence-convict-lake-open-status-20260925",
          "notes": "",
          "observation_id": "observation-usfs-convict-open-status-20260925",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The live Forest Service Recreation Opportunities record marks Convict Lake Loop Trailhead open. The Hilton Lakes and Mammoth Pass trailhead records do not publish an open-status value.",
          "observation_id": "observation-usfs-convict-open-status-20260925",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-25T19:00:00+00:00",
          "source_id": "source-usfs-recreation-opportunities-eastern-sierra-20260925"
        }
      ],
      "sources": [
        {
          "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_RecreationOpportunities_01/MapServer/0",
          "publisher": "USDA Forest Service",
          "source_id": "source-usfs-recreation-opportunities-eastern-sierra-20260925"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "trailhead-convict-lake",
      "kind": "trailhead",
      "name": "Convict Lake Trailhead"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260925-eastern-sierra-connector-depth",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-usfs-convict-open-status-20260925.json",
      "reason": "Publish source-bounded access geometry and a dated operational recheck.",
      "record_id": "observation-usfs-convict-open-status-20260925",
      "record_type": "observation",
      "summary": "Publish an official Convict hiker-parking connector, the official Mammoth Pass Trailhead point, and dated pre-trip operational status."
    }
  ],
  "navigation": {
    "next_id": "observation-usfs-convict-wilderness-hiking-20260923",
    "position": 1268,
    "previous_id": "observation-usfs-convict-lake-two-mile-hike-20260924",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "The live Forest Service Recreation Opportunities record marks Convict Lake Loop Trailhead open. The Hilton Lakes and Mammoth Pass trailhead records do not publish an open-status value.",
      "observation_id": "observation-usfs-convict-open-status-20260925",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-25T19:00:00+00:00",
      "source_id": "source-usfs-recreation-opportunities-eastern-sierra-20260925"
    }
  ],
  "record": {
    "artifact_refs": [],
    "content": "The live Forest Service Recreation Opportunities record marks Convict Lake Loop Trailhead open. The Hilton Lakes and Mammoth Pass trailhead records do not publish an open-status value.",
    "observation_id": "observation-usfs-convict-open-status-20260925",
    "observed_at": null,
    "observer": "",
    "retrieved_at": "2026-09-25T19:00:00+00:00",
    "source_id": "source-usfs-recreation-opportunities-eastern-sierra-20260925"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_RecreationOpportunities_01/MapServer/0",
      "publisher": "USDA Forest Service",
      "source_id": "source-usfs-recreation-opportunities-eastern-sierra-20260925"
    }
  ]
}