{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-del-valle-map-route-disclosure",
        "evidence_ids": [
          "evidence-del-valle-map-route-disclosure"
        ],
        "predicate": "mapped_route_information",
        "spatial_scope_ids": [
          "scope-del-valle-park"
        ],
        "subject_id": "park-del-valle-regional-park",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2026-04-01"
        },
        "value": {
          "badger_cove_to_arroyo_road_miles": 5.14,
          "mode_specific_trails": true,
          "ohlone_connection": [
            "Sunol Wilderness",
            "Mission Peak"
          ]
        }
      },
      "evidence": [
        {
          "claim_id": "claim-del-valle-map-route-disclosure",
          "evidence_id": "evidence-del-valle-map-route-disclosure",
          "notes": "",
          "observation_id": "observation-del-valle-map-trails",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF page 1"
          ],
          "content": "The map distinguishes hiker-horse-bicycle, hiker-horse, hiker-bicycle, and paved hiker-bicycle trails; labels the Ohlone connection toward Sunol and Mission Peak; and states 5.14 miles from Badger Cove to Arroyo Road.",
          "observation_id": "observation-del-valle-map-trails",
          "observed_at": "2026-04-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-del-valle-map-2026-04"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/sites/default/files/del-valle-map.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-del-valle-map-2026-04"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "park-del-valle-regional-park",
      "kind": "park",
      "name": "Del Valle Regional Park"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-del-valle-map-picnic-fishing",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-del-valle-map-trails.json",
      "reason": "Add the April 2026 Del Valle map plus official picnic and fishing evidence, preserving applicability gaps.",
      "record_id": "observation-del-valle-map-trails",
      "record_type": "observation",
      "summary": "Ingest the April 2026 park map, picnic inventory, and fishing requirements with explicit conflicts and spatial gaps."
    }
  ],
  "navigation": {
    "next_id": "observation-del-valle-nonfamily-reservation-details",
    "position": 36,
    "previous_id": "observation-del-valle-map-rules",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "PDF page 1"
      ],
      "content": "The map distinguishes hiker-horse-bicycle, hiker-horse, hiker-bicycle, and paved hiker-bicycle trails; labels the Ohlone connection toward Sunol and Mission Peak; and states 5.14 miles from Badger Cove to Arroyo Road.",
      "observation_id": "observation-del-valle-map-trails",
      "observed_at": "2026-04-01T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-del-valle-map-2026-04"
    }
  ],
  "record": {
    "artifact_refs": [
      "PDF page 1"
    ],
    "content": "The map distinguishes hiker-horse-bicycle, hiker-horse, hiker-bicycle, and paved hiker-bicycle trails; labels the Ohlone connection toward Sunol and Mission Peak; and states 5.14 miles from Badger Cove to Arroyo Road.",
    "observation_id": "observation-del-valle-map-trails",
    "observed_at": "2026-04-01T00:00:00+00:00",
    "observer": "Wayproof source review",
    "retrieved_at": "2026-09-20T00:00:00+00:00",
    "source_id": "source-ebrpd-del-valle-map-2026-04"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/sites/default/files/del-valle-map.pdf",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-del-valle-map-2026-04"
    }
  ]
}