{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-tilden-camps-official",
        "evidence_ids": [
          "evidence-tilden-camps-official"
        ],
        "predicate": "site_inventory",
        "spatial_scope_ids": [
          "scope-charles-lee-tilden-regional-park"
        ],
        "subject_id": "park-charles-lee-tilden-regional-park",
        "temporal_scope": null,
        "value": {
          "common_group_facilities": {
            "barbecue": true,
            "chemical_toilets": true,
            "fire_ring": true,
            "picnic_tables": true
          },
          "equestrian_camp": {
            "horse_water_by_arrangement": true,
            "maximum_people": 50,
            "minimum_horses": 5,
            "minimum_people": 4,
            "potable_human_water": false,
            "site_id": "equestrian-camp-tilden-es-anderson"
          },
          "group_camps": [
            {
              "maximum_people": 50,
              "minimum_people": 17,
              "site_id": "group-camp-tilden-new-woodland"
            },
            {
              "maximum_people": 75,
              "minimum_people": 17,
              "site_id": "group-camp-tilden-wildcat-view"
            },
            {
              "maximum_people": 75,
              "minimum_people": 17,
              "site_id": "group-camp-tilden-gillespie"
            }
          ],
          "minimum_advance_business_days": 3,
          "reservation_channel": "phone"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-tilden-camps-official",
          "evidence_id": "evidence-tilden-camps-official",
          "notes": "The official park page directly publishes group and equestrian camp capacities, facilities, and booking requirements.",
          "observation_id": "observation-ebrpd-tilden-camping-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Equestrian Camping",
            "Group Camping"
          ],
          "content": "Tilden has New Woodland (17-50), Wildcat View (17-75), and Gillespie (17-75) group camps with picnic tables, BBQ, fire ring, and chemical toilets; reservations are by phone at least three business days ahead. ES Anderson Equestrian Camp holds 4-50 people, requires at least five horses, has horse water by arrangement but no potable human water, and uses the same booking lead.",
          "observation_id": "observation-ebrpd-tilden-camping-20260922",
          "observed_at": null,
          "observer": "Wayproof web source review",
          "retrieved_at": "2026-09-22T00:00:00-07:00",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/tilden",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-tilden-central-park-drive-weekday-closure-2026",
        "evidence_ids": [
          "evidence-tilden-central-park-drive-weekday-closure-2026"
        ],
        "predicate": "road_access_status",
        "spatial_scope_ids": [
          "scope-charles-lee-tilden-regional-park"
        ],
        "subject_id": "park-charles-lee-tilden-regional-park",
        "temporal_scope": {
          "ends_on": "2026-09-25",
          "starts_on": "2026-09-22"
        },
        "value": {
          "detours": [
            "vehicles",
            "cyclists",
            "hikers"
          ],
          "facilities_at_both_ends": "open",
          "reason": "fuels management work",
          "segment": "between Merry-Go-Round and Meadows Picnic Area",
          "status": "closed_weekdays",
          "weekends": "open"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-tilden-central-park-drive-weekday-closure-2026",
          "evidence_id": "evidence-tilden-central-park-drive-weekday-closure-2026",
          "notes": "Current or recurring access notice published on the official Tilden park page; recheck before travel.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Current notices",
            "To Reach The Park",
            "Park Accessibility",
            "Hiking and Biking"
          ],
          "content": "The live Tilden page identifies named entrances and staging areas, maps them to visitor destinations, publishes current road and trail disruptions, and describes Inspiration Point as the preferred access for Nimitz Way.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-22T15:30:00+00:00",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/tilden",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-tilden-laurel-canyon-trail-closure-2026",
        "evidence_ids": [
          "evidence-tilden-laurel-canyon-trail-closure-2026"
        ],
        "predicate": "trail_access_status",
        "spatial_scope_ids": [
          "scope-charles-lee-tilden-regional-park"
        ],
        "subject_id": "park-charles-lee-tilden-regional-park",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2026-09-22"
        },
        "value": {
          "reason": "storm damage",
          "segment": "upper 0.43 miles of Laurel Canyon Trail",
          "source_updated_on": "2026-09-22",
          "status": "closed",
          "until": "further notice"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-tilden-laurel-canyon-trail-closure-2026",
          "evidence_id": "evidence-tilden-laurel-canyon-trail-closure-2026",
          "notes": "Current or recurring access notice published on the official Tilden park page; recheck before travel.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Current notices",
            "To Reach The Park",
            "Park Accessibility",
            "Hiking and Biking"
          ],
          "content": "The live Tilden page identifies named entrances and staging areas, maps them to visitor destinations, publishes current road and trail disruptions, and describes Inspiration Point as the preferred access for Nimitz Way.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-22T15:30:00+00:00",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/tilden",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-tilden-nimitz-way-access-profile",
        "evidence_ids": [
          "evidence-tilden-nimitz-way-access-profile"
        ],
        "predicate": "route_access_profile",
        "spatial_scope_ids": [
          "scope-staging-tilden-inspiration-point"
        ],
        "subject_id": "route-tilden-nimitz-way",
        "temporal_scope": null,
        "value": {
          "best_parking": "Tilden Inspiration Point Parking Lot",
          "dogs_must_be_leashed": true,
          "drinking_water_at_staging": false,
          "surface": "paved",
          "uses": [
            "hiking",
            "bicycling",
            "equestrian"
          ],
          "wheelchair_accessible": true
        }
      },
      "evidence": [
        {
          "claim_id": "claim-tilden-nimitz-way-access-profile",
          "evidence_id": "evidence-tilden-nimitz-way-access-profile",
          "notes": "Official hiking, biking, and accessibility guidance for Nimitz Way and Inspiration Point.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Current notices",
            "To Reach The Park",
            "Park Accessibility",
            "Hiking and Biking"
          ],
          "content": "The live Tilden page identifies named entrances and staging areas, maps them to visitor destinations, publishes current road and trail disruptions, and describes Inspiration Point as the preferred access for Nimitz Way.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-22T15:30:00+00:00",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/tilden",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-tilden-south-park-drive-newt-closure",
        "evidence_ids": [
          "evidence-tilden-south-park-drive-newt-closure"
        ],
        "predicate": "seasonal_road_access",
        "spatial_scope_ids": [
          "scope-charles-lee-tilden-regional-park"
        ],
        "subject_id": "park-charles-lee-tilden-regional-park",
        "temporal_scope": null,
        "value": {
          "annual_window": "November 1 through April 1",
          "non_auto_access": "not stated as closed",
          "reason": "protect migrating newts",
          "road": "South Park Drive",
          "status": "closed_to_automobiles"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-tilden-south-park-drive-newt-closure",
          "evidence_id": "evidence-tilden-south-park-drive-newt-closure",
          "notes": "Current or recurring access notice published on the official Tilden park page; recheck before travel.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Current notices",
            "To Reach The Park",
            "Park Accessibility",
            "Hiking and Biking"
          ],
          "content": "The live Tilden page identifies named entrances and staging areas, maps them to visitor destinations, publishes current road and trail disruptions, and describes Inspiration Point as the preferred access for Nimitz Way.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-22T15:30:00+00:00",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/tilden",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-tilden-visitor-profile",
        "evidence_ids": [
          "evidence-ebrpd-tilden-visitor-profile"
        ],
        "predicate": "visitor_profile",
        "spatial_scope_ids": [
          "scope-charles-lee-tilden-regional-park"
        ],
        "subject_id": "park-charles-lee-tilden-regional-park",
        "temporal_scope": null,
        "value": {
          "access": "multiple entrances and staging areas from Grizzly Peak Boulevard, Wildcat Canyon Road, Canon Drive, and Shasta Road",
          "accessible_facilities": [
            "Steam Train",
            "Merry-Go-Round",
            "Little Farm",
            "Environmental Education Center",
            "Nimitz Way",
            "Inspiration Point parking and restrooms",
            "Botanic Garden visitor facilities"
          ],
          "acreage": 2079,
          "activities": [
            "biking",
            "camping",
            "dogs",
            "fishing",
            "golfing",
            "hiking",
            "horseback riding",
            "kid-friendly",
            "model trains",
            "picnicking",
            "swimming"
          ],
          "address": "entrances off Wildcat Canyon Road and Grizzly Peak Boulevard, Berkeley, CA",
          "camping": {
            "equestrian_site": "ES Anderson",
            "group_sites": 3,
            "reservation_minimum_business_days": 3
          },
          "hours": "05:00–22:00 unless otherwise posted or permitted",
          "major_facilities": [
            "Lake Anza",
            "Regional Parks Botanic Garden",
            "Brazilian Room",
            "Tilden Nature Area",
            "Little Farm",
            "golf course",
            "Merry-Go-Round",
            "Steam Train"
          ],
          "parking_fee_usd": 0,
          "regional_routes": [
            "Nimitz Way",
            "East Bay Skyline National Recreation Trail"
          ],
          "seasonal_access": "South Park Drive closed to automobiles November 1–April 1 for migrating newts",
          "trail_miles": 39.41
        }
      },
      "evidence": [
        {
          "claim_id": "claim-tilden-visitor-profile",
          "evidence_id": "evidence-ebrpd-tilden-visitor-profile",
          "notes": "Direct transcription and conservative structuring of planning-relevant fields from the official park page.",
          "observation_id": "observation-ebrpd-tilden-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-tilden-visitor-profile",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T07:00:00+00:00",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/tilden",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-tilden-wildcat-gorge-trail-closure-2026",
        "evidence_ids": [
          "evidence-tilden-wildcat-gorge-trail-closure-2026"
        ],
        "predicate": "trail_access_status",
        "spatial_scope_ids": [
          "scope-charles-lee-tilden-regional-park"
        ],
        "subject_id": "park-charles-lee-tilden-regional-park",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2026-09-22"
        },
        "value": {
          "planned_reopening": "January 2027",
          "reason": "Wildcat Creek restoration",
          "segment": "Wildcat Gorge Trail near Brook Road",
          "status": "closed"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-tilden-wildcat-gorge-trail-closure-2026",
          "evidence_id": "evidence-tilden-wildcat-gorge-trail-closure-2026",
          "notes": "Current or recurring access notice published on the official Tilden park page; recheck before travel.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Current notices",
            "To Reach The Park",
            "Park Accessibility",
            "Hiking and Biking"
          ],
          "content": "The live Tilden page identifies named entrances and staging areas, maps them to visitor destinations, publishes current road and trail disruptions, and describes Inspiration Point as the preferred access for Nimitz Way.",
          "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-22T15:30:00+00:00",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/tilden",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-tilden-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "park-charles-lee-tilden-regional-park",
      "kind": "park",
      "name": "Charles Lee Tilden Regional Park"
    },
    {
      "entity_id": "route-tilden-nimitz-way",
      "kind": "route",
      "name": "Nimitz Way"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260921-ebrpd-parks-batch-13",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-ebrpd-tilden-park-page.json",
      "reason": "Add a deduplicated planning profile from the live EBRPD preserve page reviewed on 2026-09-20.",
      "record_id": "source-ebrpd-tilden-park-page",
      "record_type": "source",
      "summary": "Add four additional previously uncaptured EBRPD park visitor profiles."
    }
  ],
  "navigation": {
    "next_id": "source-ebrpd-vargas-plateau-park-page",
    "position": 91,
    "previous_id": "source-ebrpd-tilden-nature-area-park-page",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [
        "Current notices",
        "To Reach The Park",
        "Park Accessibility",
        "Hiking and Biking"
      ],
      "content": "The live Tilden page identifies named entrances and staging areas, maps them to visitor destinations, publishes current road and trail disruptions, and describes Inspiration Point as the preferred access for Nimitz Way.",
      "observation_id": "observation-ebrpd-tilden-access-conditions-20260922",
      "observed_at": null,
      "observer": "Wayproof live source review",
      "retrieved_at": "2026-09-22T15:30:00+00:00",
      "source_id": "source-ebrpd-tilden-park-page"
    },
    {
      "artifact_refs": [
        "Equestrian Camping",
        "Group Camping"
      ],
      "content": "Tilden has New Woodland (17-50), Wildcat View (17-75), and Gillespie (17-75) group camps with picnic tables, BBQ, fire ring, and chemical toilets; reservations are by phone at least three business days ahead. ES Anderson Equestrian Camp holds 4-50 people, requires at least five horses, has horse water by arrangement but no potable human water, and uses the same booking lead.",
      "observation_id": "observation-ebrpd-tilden-camping-20260922",
      "observed_at": null,
      "observer": "Wayproof web source review",
      "retrieved_at": "2026-09-22T00:00:00-07:00",
      "source_id": "source-ebrpd-tilden-park-page"
    },
    {
      "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-tilden-visitor-profile",
      "observed_at": null,
      "observer": "Wayproof live source review",
      "retrieved_at": "2026-09-20T07:00:00+00:00",
      "source_id": "source-ebrpd-tilden-park-page"
    }
  ],
  "record": {
    "locator": "https://www.ebparks.org/parks/tilden",
    "publisher": "East Bay Regional Park District",
    "source_id": "source-ebrpd-tilden-park-page"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/tilden",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-tilden-park-page"
    }
  ]
}