{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-ohlone-map-corridor-distances",
        "evidence_ids": [
          "evidence-ohlone-map-corridor-distances"
        ],
        "predicate": "published_corridor_distances_miles",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2025-08-01"
        },
        "value": {
          "sunol_boundary_to_del_valle_boundary": 13.9,
          "sunol_boundary_to_del_valle_west_beach_services": 15.6
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-map-corridor-distances",
          "evidence_id": "evidence-ohlone-map-corridor-distances",
          "notes": "",
          "observation_id": "observation-ohlone-map-corridor",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF page 1"
          ],
          "content": "The map depicts the Ohlone trail corridor across Mission Peak, Sunol, Ohlone Wilderness, San Francisco Water Department lands, and Del Valle. It states 13.9 miles between the Sunol and Del Valle park boundaries and 15.6 miles to Del Valle West Beach services.",
          "observation_id": "observation-ohlone-map-corridor",
          "observed_at": "2025-08-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/sites/default/files/Ohlone-Wilderness-Permit-Map-11x17.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "trail-ohlone-wilderness",
      "kind": "trail",
      "name": "Ohlone Wilderness Trail"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-ohlone-map-2025-08",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ohlone-map-corridor.json",
      "reason": "Add the August 2025 Ohlone map as dated spatial evidence without reviving its obsolete permit title.",
      "record_id": "observation-ohlone-map-corridor",
      "record_type": "observation",
      "summary": "Ingest the August 2025 Ohlone map as spatial evidence while bounding its permit-era title."
    }
  ],
  "navigation": {
    "next_id": "observation-ohlone-map-eagles-eyrie-spelling",
    "position": 944,
    "previous_id": "observation-ohlone-map-camps",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "PDF page 1"
      ],
      "content": "The map depicts the Ohlone trail corridor across Mission Peak, Sunol, Ohlone Wilderness, San Francisco Water Department lands, and Del Valle. It states 13.9 miles between the Sunol and Del Valle park boundaries and 15.6 miles to Del Valle West Beach services.",
      "observation_id": "observation-ohlone-map-corridor",
      "observed_at": "2025-08-01T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
    }
  ],
  "record": {
    "artifact_refs": [
      "PDF page 1"
    ],
    "content": "The map depicts the Ohlone trail corridor across Mission Peak, Sunol, Ohlone Wilderness, San Francisco Water Department lands, and Del Valle. It states 13.9 miles between the Sunol and Del Valle park boundaries and 15.6 miles to Del Valle West Beach services.",
    "observation_id": "observation-ohlone-map-corridor",
    "observed_at": "2025-08-01T00:00:00+00:00",
    "observer": "Wayproof source review",
    "retrieved_at": "2026-09-20T00:00:00+00:00",
    "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/sites/default/files/Ohlone-Wilderness-Permit-Map-11x17.pdf",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
    }
  ]
}