{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-briones-visitor-profile",
        "evidence_ids": [
          "evidence-ebrpd-briones-visitor-profile"
        ],
        "predicate": "visitor_profile",
        "spatial_scope_ids": [
          "scope-briones-regional-park"
        ],
        "subject_id": "park-briones-regional-park",
        "temporal_scope": null,
        "value": {
          "acreage": 6255,
          "activities": [
            "archery",
            "biking",
            "camping",
            "dogs",
            "hiking",
            "horseback riding",
            "picnicking"
          ],
          "bus_fee_usd": 25,
          "current_alert": {
            "as_of": "2026-09-20",
            "trail_damage": "Briones Crest/Mott Peak and Briones Crest/Lagoon intersections damaged but passable with care"
          },
          "dog_rules": "six-foot leash required on the published Tavan, Diablo View, Alhambra Creek, and Orchard trail segments",
          "group_camps": {
            "capacity_range": [
              50,
              300
            ],
            "count": 3,
            "facilities": [
              "picnic tables",
              "barbecue",
              "fire ring",
              "chemical toilets"
            ],
            "minimum_people": 17,
            "reservation_required": true
          },
          "parking_fee_usd": 5,
          "parking_lot_hours": "08:00 to sunset",
          "payment": "cash only",
          "seasonal_gate_hours": "08:00 opening; closing varies from 17:00 to 20:00 by published date bands",
          "special_management_area": {
            "acreage": 1600,
            "trail_use": "route-specific allowed uses and directions; weekend bicycle/equestrian access alternates by even and odd calendar days"
          },
          "staging_areas": [
            "Alhambra Creek",
            "Bear Creek",
            "Briones Road",
            "Lafayette Ridge",
            "Reliez Valley"
          ],
          "trailered_vehicle_fee_usd": 5
        }
      },
      "evidence": [
        {
          "claim_id": "claim-briones-visitor-profile",
          "evidence_id": "evidence-ebrpd-briones-visitor-profile",
          "notes": "Direct transcription and conservative structuring of planning-relevant fields from the official park page.",
          "observation_id": "observation-ebrpd-briones-visitor-profile",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Overview",
            "To Reach The Park",
            "Attractions"
          ],
          "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
          "observation_id": "observation-ebrpd-briones-visitor-profile",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T07:00:00+00:00",
          "source_id": "source-ebrpd-briones-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/briones",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-briones-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "park-briones-regional-park",
      "kind": "park",
      "name": "Briones Regional Park"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-parks-batch-05",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ebrpd-briones-visitor-profile.json",
      "reason": "Add a deduplicated planning profile from the live EBRPD preserve page reviewed on 2026-09-20.",
      "record_id": "observation-ebrpd-briones-visitor-profile",
      "record_type": "observation",
      "summary": "Add four additional previously uncaptured EBRPD park visitor profiles."
    }
  ],
  "navigation": {
    "next_id": "observation-ebrpd-brochure-2025-del-valle",
    "position": 65,
    "previous_id": "observation-ebrpd-briones-camping-20260922",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "Overview",
        "To Reach The Park",
        "Attractions"
      ],
      "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
      "observation_id": "observation-ebrpd-briones-visitor-profile",
      "observed_at": null,
      "observer": "Wayproof live source review",
      "retrieved_at": "2026-09-20T07:00:00+00:00",
      "source_id": "source-ebrpd-briones-park-page"
    }
  ],
  "record": {
    "artifact_refs": [
      "Overview",
      "To Reach The Park",
      "Attractions"
    ],
    "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
    "observation_id": "observation-ebrpd-briones-visitor-profile",
    "observed_at": null,
    "observer": "Wayproof live source review",
    "retrieved_at": "2026-09-20T07:00:00+00:00",
    "source_id": "source-ebrpd-briones-park-page"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/briones",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-briones-park-page"
    }
  ]
}