{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-emigrant-geometry-bear-spur",
        "evidence_ids": [
          "evidence-emigrant-geometry-bear-spur"
        ],
        "predicate": "reviewed_route_display_geometry",
        "spatial_scope_ids": [
          "scope-route-emigrant-crabtree-bear-lake"
        ],
        "subject_id": "route-segment-emigrant-crabtree-bear-spur",
        "temporal_scope": null,
        "value": {
          "coordinate_reference_system": "EPSG:4326",
          "current_route_status": "unknown; pre-trip check required",
          "distance_policy": "Existing topology claims control mileage; no distance derived from these coordinates.",
          "end_coordinate": {
            "latitude": 38.17439691200468,
            "longitude": -119.86702313700192
          },
          "geometry_snapshot": {
            "feature_id": "usfs-emigrant-bear-spur",
            "path": "geometry/v0/snapshots/usfs-emigrant-crabtree-routes-20261006.geojson",
            "sha256": "33fba5638eb580a602ba16c4bd4dada51a35c696002db839fde0612fb603285d"
          },
          "navigation_grade": false,
          "route_role": "official_mainline",
          "source_coordinate_accuracy": "unknown",
          "source_feature_id": 9430557,
          "source_globalid": "{8497BEEB-8635-4A89-8352-B24C998130DD}",
          "source_trail_number": "19E09",
          "source_vertex_range_inclusive": [
            0,
            164
          ],
          "start_coordinate": {
            "latitude": 38.166155721488686,
            "longitude": -119.87741437071607
          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-emigrant-geometry-bear-spur",
          "evidence_id": "evidence-emigrant-geometry-bear-spur",
          "notes": "Wayproof display assignment to already evidenced endpoints; no new topology inferred from proximity.",
          "observation_id": "observation-emigrant-geometry-bear-spur",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Public National Forest System Trails layer, feature 9430557, globalid {8497BEEB-8635-4A89-8352-B24C998130DD}, trail 19E09 BEAR LAKE: reviewed EPSG:4326 source vertices 0 through 164 are retained for display. Source segment_length 1 and gis_miles 0.9720000000000001 describe the original feature, not a computed length for this slice. Coordinate accuracy and current field condition are not established by retrieval.",
          "observation_id": "observation-emigrant-geometry-bear-spur",
          "observed_at": null,
          "observer": "Wayproof named-feature and official-map review",
          "retrieved_at": "2026-10-06T00:09:34+00:00",
          "source_id": "source-usfs-emigrant-nfs-trail-geometry"
        }
      ],
      "sources": [
        {
          "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_TrailNFSPublish_01/MapServer/0",
          "publisher": "USDA Forest Service",
          "source_id": "source-usfs-emigrant-nfs-trail-geometry"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "route-segment-emigrant-crabtree-bear-spur",
      "kind": "route_segment",
      "name": "Bear Spur"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20261006-emigrant-crabtree-geometry",
      "evidence_refs": [
        "evidence-emigrant-geometry-bear-spur"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-emigrant-geometry-bear-spur.json",
      "reason": "Attach reviewed federal display geometry without changing graph or mileage.",
      "record_id": "claim-emigrant-geometry-bear-spur",
      "record_type": "claim",
      "summary": "Make the existing Crabtree lake approaches geographically drawable with reviewed USFS vertices and explicit display limits."
    }
  ],
  "navigation": {
    "next_id": "claim-emigrant-geometry-camp-bear-junction",
    "position": 671,
    "previous_id": "claim-emigrant-food-storage",
    "total": 3965
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "Public National Forest System Trails layer, feature 9430557, globalid {8497BEEB-8635-4A89-8352-B24C998130DD}, trail 19E09 BEAR LAKE: reviewed EPSG:4326 source vertices 0 through 164 are retained for display. Source segment_length 1 and gis_miles 0.9720000000000001 describe the original feature, not a computed length for this slice. Coordinate accuracy and current field condition are not established by retrieval.",
      "observation_id": "observation-emigrant-geometry-bear-spur",
      "observed_at": null,
      "observer": "Wayproof named-feature and official-map review",
      "retrieved_at": "2026-10-06T00:09:34+00:00",
      "source_id": "source-usfs-emigrant-nfs-trail-geometry"
    }
  ],
  "record": {
    "claim_id": "claim-emigrant-geometry-bear-spur",
    "evidence_ids": [
      "evidence-emigrant-geometry-bear-spur"
    ],
    "predicate": "reviewed_route_display_geometry",
    "spatial_scope_ids": [
      "scope-route-emigrant-crabtree-bear-lake"
    ],
    "subject_id": "route-segment-emigrant-crabtree-bear-spur",
    "temporal_scope": null,
    "value": {
      "coordinate_reference_system": "EPSG:4326",
      "current_route_status": "unknown; pre-trip check required",
      "distance_policy": "Existing topology claims control mileage; no distance derived from these coordinates.",
      "end_coordinate": {
        "latitude": 38.17439691200468,
        "longitude": -119.86702313700192
      },
      "geometry_snapshot": {
        "feature_id": "usfs-emigrant-bear-spur",
        "path": "geometry/v0/snapshots/usfs-emigrant-crabtree-routes-20261006.geojson",
        "sha256": "33fba5638eb580a602ba16c4bd4dada51a35c696002db839fde0612fb603285d"
      },
      "navigation_grade": false,
      "route_role": "official_mainline",
      "source_coordinate_accuracy": "unknown",
      "source_feature_id": 9430557,
      "source_globalid": "{8497BEEB-8635-4A89-8352-B24C998130DD}",
      "source_trail_number": "19E09",
      "source_vertex_range_inclusive": [
        0,
        164
      ],
      "start_coordinate": {
        "latitude": 38.166155721488686,
        "longitude": -119.87741437071607
      }
    }
  },
  "record_type": "claim",
  "related_records": [],
  "sources": [
    {
      "locator": "https://apps.fs.usda.gov/arcx/rest/services/EDW/EDW_TrailNFSPublish_01/MapServer/0",
      "publisher": "USDA Forest Service",
      "source_id": "source-usfs-emigrant-nfs-trail-geometry"
    }
  ]
}