{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-ohlone-trail-use",
        "evidence_ids": [
          "evidence-ohlone-trail-use",
          "evidence-ohlone-map-trail-use"
        ],
        "predicate": "trail_use",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": null,
        "value": {
          "bicycles": false,
          "distance_miles": 28,
          "equestrians": true,
          "hikers": true,
          "motor_vehicles": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-trail-use",
          "evidence_id": "evidence-ohlone-trail-use",
          "notes": "",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "stance": "supports"
        },
        {
          "claim_id": "claim-ohlone-trail-use",
          "evidence_id": "evidence-ohlone-map-trail-use",
          "notes": "",
          "observation_id": "observation-ohlone-map-restrictions",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The 28-mile Ohlone Wilderness Trail is open to hikers and equestrians, not bicycles or motor vehicles, and crosses Ohlone Wilderness, Mission Peak, Sunol, Del Valle, and leased watershed lands where users must stay in the trail corridor.",
          "observation_id": "observation-ebrpd-ohlone-trail",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "artifact_refs": [
            "PDF page 1"
          ],
          "content": "The map repeatedly says stay on trail and no bicycles, identifies the Ohlone Wilderness Trail for hikers and horses only, and marks service roads and land-bank areas as no access. It requires staying on the trail in San Francisco Water Department land.",
          "observation_id": "observation-ohlone-map-restrictions",
          "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/parks/ohlone",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-park-page"
        },
        {
          "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": "REPLACE",
      "change_set_id": "wp-20260920-ebrpd-ohlone-map-2025-08",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-ohlone-trail-use.json",
      "reason": "Add the August 2025 Ohlone map as dated spatial evidence without reviving its obsolete permit title.",
      "record_id": "claim-ohlone-trail-use",
      "record_type": "claim",
      "summary": "Ingest the August 2025 Ohlone map as spatial evidence while bounding its permit-era title."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-ohlone-park-page",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-ohlone-trail-use.json",
      "reason": "Add the official Ohlone preserve page, resolve the 2026 permit change, and date volatile water status.",
      "record_id": "claim-ohlone-trail-use",
      "record_type": "claim",
      "summary": "Ingest the official Ohlone preserve page, resolve the obsolete permit ambiguity, and preserve dated water availability."
    }
  ],
  "navigation": {
    "next_id": "claim-ohlone-water-availability-20260919",
    "position": 1190,
    "previous_id": "claim-ohlone-trail-traversed-parks",
    "total": 3965
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "The 28-mile Ohlone Wilderness Trail is open to hikers and equestrians, not bicycles or motor vehicles, and crosses Ohlone Wilderness, Mission Peak, Sunol, Del Valle, and leased watershed lands where users must stay in the trail corridor.",
      "observation_id": "observation-ebrpd-ohlone-trail",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-park-page"
    },
    {
      "artifact_refs": [
        "PDF page 1"
      ],
      "content": "The map repeatedly says stay on trail and no bicycles, identifies the Ohlone Wilderness Trail for hikers and horses only, and marks service roads and land-bank areas as no access. It requires staying on the trail in San Francisco Water Department land.",
      "observation_id": "observation-ohlone-map-restrictions",
      "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": {
    "claim_id": "claim-ohlone-trail-use",
    "evidence_ids": [
      "evidence-ohlone-trail-use",
      "evidence-ohlone-map-trail-use"
    ],
    "predicate": "trail_use",
    "spatial_scope_ids": [
      "scope-ohlone-wilderness-trail"
    ],
    "subject_id": "trail-ohlone-wilderness",
    "temporal_scope": null,
    "value": {
      "bicycles": false,
      "distance_miles": 28,
      "equestrians": true,
      "hikers": true,
      "motor_vehicles": false
    }
  },
  "record_type": "claim",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/ohlone",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-ohlone-park-page"
    },
    {
      "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"
    }
  ]
}