{
  "answerability": "evidence_backed_claims_available",
  "claims": [
    {
      "claim": {
        "claim_id": "claim-park-point-pinole-regional-shoreline-boundary-geometry-20260924",
        "evidence_ids": [
          "evidence-park-point-pinole-regional-shoreline-boundary-geometry-20260924"
        ],
        "predicate": "managed_land_boundary_geometry",
        "spatial_scope_ids": [],
        "subject_id": "park-point-pinole-regional-shoreline",
        "temporal_scope": null,
        "value": {
          "boundary_geometry_snapshot": {
            "feature_ids": [
              "ebrpd:97"
            ],
            "path": "geometry/v0/snapshots/ebrpd-managed-land-boundaries-20260924.geojson",
            "sha256": "4e6558956f4f397816d719ff87554289e08dd495314b2d57c83d1634f083e3e5"
          },
          "boundary_type": "managed_land_status_polygons",
          "coordinate_precision_decimal_degrees": 5,
          "coordinate_reference_system": "EPSG:4326",
          "navigation_grade": false
        }
      },
      "evidence": [
        {
          "claim_id": "claim-park-point-pinole-regional-shoreline-boundary-geometry-20260924",
          "evidence_id": "evidence-park-point-pinole-regional-shoreline-boundary-geometry-20260924",
          "notes": "Supports the selected source polygons and their retained boundary semantics.",
          "observation_id": "observation-managed-land-boundaries-ebrpd-20260924",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "geometry/v0/snapshots/ebrpd-managed-land-boundaries-20260924.geojson"
          ],
          "content": "EBRPD's open-data layer reports the selected current managed-land polygons; parkland and landbank status remain separate.",
          "observation_id": "observation-managed-land-boundaries-ebrpd-20260924",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-24T22:00:00+00:00",
          "source_id": "source-ebrpd-managed-land-boundaries-20260924"
        }
      ],
      "sources": [
        {
          "locator": "https://services2.arcgis.com/jeEP9c9zZoQQwtck/arcgis/rest/services/EBRPD_Parks/FeatureServer/0",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-managed-land-boundaries-20260924"
        }
      ],
      "subject": {
        "entity_id": "park-point-pinole-regional-shoreline",
        "kind": "park",
        "name": "Point Pinole Regional Shoreline"
      }
    },
    {
      "claim": {
        "claim_id": "claim-point-pinole-group-camp-reserveamerica",
        "evidence_ids": [
          "evidence-point-pinole-group-camp-reserveamerica"
        ],
        "predicate": "reserveamerica_campsite_inventory",
        "spatial_scope_ids": [
          "scope-point-pinole-regional-shoreline"
        ],
        "subject_id": "facility-reserveamerica-point-pinole-110457",
        "temporal_scope": null,
        "value": {
          "facility_id": "110457",
          "products": [
            {
              "maximum_people": 35,
              "minimum_people": 17,
              "product_id": "1157",
              "site_id": "group-camp-point-pinole-overnight"
            }
          ],
          "seasonal_closure": {
            "end_month_day": "03-31",
            "start_month_day": "11-01"
          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-point-pinole-group-camp-reserveamerica",
          "evidence_id": "evidence-point-pinole-group-camp-reserveamerica",
          "notes": "The live booking inventory identifies facility 110457, product 1157, capacity, and seasonal closure.",
          "observation_id": "observation-reserveamerica-point-pinole-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Facility EB/110457",
            "Product 1157"
          ],
          "content": "ReserveAmerica lists Point Pinole Group Camp - Overnight as product 1157, a primitive seasonal group camp for 17-35 people. The facility closes November 1 through March 31.",
          "observation_id": "observation-reserveamerica-point-pinole-20260922",
          "observed_at": null,
          "observer": "Wayproof browser source review",
          "retrieved_at": "2026-09-22T00:00:00-07:00",
          "source_id": "source-reserveamerica-point-pinole-campsites"
        }
      ],
      "sources": [
        {
          "locator": "https://www.reserveamerica.com/explore/point-pinole-regional-shoreline/EB/110457/campsites",
          "publisher": "ReserveAmerica / East Bay Regional Park District",
          "source_id": "source-reserveamerica-point-pinole-campsites"
        }
      ],
      "subject": {
        "entity_id": "facility-reserveamerica-point-pinole-110457",
        "kind": "booking_facility",
        "name": "Point Pinole Regional Shoreline ReserveAmerica Facility"
      }
    },
    {
      "claim": {
        "claim_id": "claim-point-pinole-bay-trail-sinkhole-closure-2026",
        "evidence_ids": [
          "evidence-point-pinole-bay-trail-sinkhole-closure-2026"
        ],
        "predicate": "trail_access_status",
        "spatial_scope_ids": [],
        "subject_id": "park-point-pinole-regional-shoreline",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": null
        },
        "value": {
          "cause": "large sinkhole",
          "reopening_timeline": null,
          "segment": "Bay Trail east of Atlas Bridge entrance between Union Pacific tracks and the San Francisco Bay Trail corridor",
          "source_updated_on": "2026-09-22",
          "status": "closed"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-point-pinole-bay-trail-sinkhole-closure-2026",
          "evidence_id": "evidence-point-pinole-bay-trail-sinkhole-closure-2026",
          "notes": "Live EBRPD alert; recheck the official alerts page before travel.",
          "observation_id": "observation-ebrpd-alerts-closures-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Alerts and Closures table"
          ],
          "content": "The district alerts page published the park, trail, facility, and water conditions represented by the associated claims. Entries with insufficient page context were not promoted.",
          "observation_id": "observation-ebrpd-alerts-closures-20260922",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-22T18:30:00+00:00",
          "source_id": "source-ebrpd-alerts-closures"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/alerts-closures",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-alerts-closures"
        }
      ],
      "subject": {
        "entity_id": "park-point-pinole-regional-shoreline",
        "kind": "park",
        "name": "Point Pinole Regional Shoreline"
      }
    },
    {
      "claim": {
        "claim_id": "claim-point-pinole-visitor-profile",
        "evidence_ids": [
          "evidence-ebrpd-point-pinole-visitor-profile"
        ],
        "predicate": "visitor_profile",
        "spatial_scope_ids": [
          "scope-point-pinole-regional-shoreline"
        ],
        "subject_id": "park-point-pinole-regional-shoreline",
        "temporal_scope": null,
        "value": {
          "access": {
            "atlas_road": "3000 Atlas Road, Richmond, CA 94806; 78 spaces",
            "dotson_family_marsh": "Goodrick Avenue staging",
            "giant_highway": "5551 Giant Highway, Richmond, CA 94806; 120 spaces"
          },
          "accessible_facilities": [
            "Atlas Road vehicle and pedestrian bridge",
            "parking",
            "picnic sites",
            "restrooms",
            "paved trail"
          ],
          "acreage": 2432,
          "activities": [
            "camping",
            "dogs",
            "fishing",
            "hiking",
            "horseback riding",
            "kid-friendly"
          ],
          "bay_trail": {
            "added_miles": 1.8,
            "existing_miles": 4.5
          },
          "bus_fee_usd": 25,
          "dog_rules": {
            "commercial_dog_walking": false,
            "dogs_on_pier": false,
            "maximum_per_person": 3
          },
          "group_camp": {
            "distance_from_pier_yards": "200–300",
            "facilities": [
              "tables",
              "barbecue",
              "fire circle",
              "shade",
              "rinsing shower",
              "drinking water",
              "chemical toilets",
              "storage"
            ],
            "primitive": true,
            "reservation_minimum_business_days": 3
          },
          "parking_fee_usd": 5,
          "seasonal_hours": "08:00 opening; closing varies from 16:00 to 19:00 by month",
          "seasonal_parking_fee_months": "April–October when kiosk is attended",
          "trails_miles": 12
        }
      },
      "evidence": [
        {
          "claim_id": "claim-point-pinole-visitor-profile",
          "evidence_id": "evidence-ebrpd-point-pinole-visitor-profile",
          "notes": "Direct transcription and conservative structuring of planning-relevant fields from the official park page.",
          "observation_id": "observation-ebrpd-point-pinole-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-point-pinole-visitor-profile",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T07:00:00+00:00",
          "source_id": "source-ebrpd-point-pinole-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/point-pinole",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-point-pinole-park-page"
        }
      ],
      "subject": {
        "entity_id": "park-point-pinole-regional-shoreline",
        "kind": "park",
        "name": "Point Pinole Regional Shoreline"
      }
    }
  ],
  "entity": {
    "entity_id": "park-point-pinole-regional-shoreline",
    "kind": "park",
    "name": "Point Pinole Regional Shoreline"
  },
  "gap_details": [],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260921-ebrpd-parks-batch-11",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/entities/park-point-pinole-regional-shoreline.json",
      "reason": "Add a deduplicated planning profile from the live EBRPD preserve page reviewed on 2026-09-20.",
      "record_id": "park-point-pinole-regional-shoreline",
      "record_type": "entity",
      "summary": "Add four additional previously uncaptured EBRPD park visitor profiles."
    },
    {
      "action": "ADD",
      "change_set_id": "change-managed-land-boundary-backfill-20260924",
      "evidence_refs": [
        "evidence-park-point-pinole-regional-shoreline-boundary-geometry-20260924"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-park-point-pinole-regional-shoreline-boundary-geometry-20260924.json",
      "reason": "Backfill reviewed managed-land boundary geometry",
      "record_id": "claim-park-point-pinole-regional-shoreline-boundary-geometry-20260924",
      "record_type": "claim",
      "summary": "Backfill reviewed boundary geometry for every published park, national park, and wilderness entity"
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260922-parks-deep-batch-04-group-camps",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-point-pinole-group-camp-reserveamerica.json",
      "reason": "Publish source-backed Briones and Point Pinole group-camp knowledge through the existing canonical lifecycle.",
      "record_id": "claim-point-pinole-group-camp-reserveamerica",
      "record_type": "claim",
      "summary": "Deepen Briones and Point Pinole group-camp planning knowledge."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260922-ebrpd-current-conditions",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-point-pinole-bay-trail-sinkhole-closure-2026.json",
      "reason": "Materialize an unambiguous actionable condition from the district alerts page.",
      "record_id": "claim-point-pinole-bay-trail-sinkhole-closure-2026",
      "record_type": "claim",
      "summary": "Materialize current EBRPD closures and water disruptions for pre-trip rechecks."
    },
    {
      "action": "ADD",
      "change_set_id": "wp-20260921-ebrpd-parks-batch-11",
      "evidence_refs": [
        "evidence-ebrpd-point-pinole-visitor-profile"
      ],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-point-pinole-visitor-profile.json",
      "reason": "Add a deduplicated planning profile from the live EBRPD preserve page reviewed on 2026-09-20.",
      "record_id": "claim-point-pinole-visitor-profile",
      "record_type": "claim",
      "summary": "Add four additional previously uncaptured EBRPD park visitor profiles."
    }
  ],
  "journey": [],
  "knowledge_gaps": [],
  "reference_evidence": [],
  "relationships": [
    {
      "evidence_ids": [
        "evidence-point-pinole-group-camp-official"
      ],
      "object_id": "park-point-pinole-regional-shoreline",
      "predicate": "located_in",
      "relationship_id": "relationship-point-pinole-group-camp-in-park",
      "subject_id": "group-camp-point-pinole-overnight",
      "temporal_scope": null
    }
  ],
  "route_geometry": null,
  "route_geometry_url": null,
  "type": "canonical_entity"
}