{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-sibley-backpack-camp-official",
        "evidence_ids": [
          "evidence-sibley-backpack-camp-official"
        ],
        "predicate": "site_inventory",
        "spatial_scope_ids": [
          "scope-sibley-backpack-camp"
        ],
        "subject_id": "backpack-camp-sibley",
        "temporal_scope": null,
        "value": {
          "ada_picnic_tables": 1,
          "direction_from_parking": "uphill",
          "hike_in_distance_miles": 0.2,
          "maximum_people": 15,
          "minimum_advance_business_days": 2,
          "picnic_tables": 2,
          "pit_toilet": true,
          "reservation_channel": "phone",
          "serving_table": true,
          "site_type": "primitive_backpack_camp"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-sibley-backpack-camp-official",
          "evidence_id": "evidence-sibley-backpack-camp-official",
          "notes": "The official park page directly publishes capacity, access distance, facilities, and booking lead time.",
          "observation_id": "observation-ebrpd-sibley-camping-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Park Activities"
          ],
          "content": "Sibley Backpack Camp is a primitive hike-in camp for up to 15 people, 0.2 mile uphill from parking, with two picnic tables (one ADA), one serving table, and a pit toilet. Phone reservations are required two or more business days ahead.",
          "observation_id": "observation-ebrpd-sibley-camping-20260922",
          "observed_at": null,
          "observer": "Wayproof web source review",
          "retrieved_at": "2026-09-22T00:00:00-07:00",
          "source_id": "source-ebrpd-sibley-volcanic-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/sibley-volcanic",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-sibley-volcanic-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "backpack-camp-sibley",
      "kind": "backcountry_camp",
      "name": "Sibley Backpack Camp"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260922-parks-deep-batch-05-tilden-sibley",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ebrpd-sibley-camping-20260922.json",
      "reason": "Publish source-backed Tilden and Sibley camping knowledge through the existing canonical lifecycle.",
      "record_id": "observation-ebrpd-sibley-camping-20260922",
      "record_type": "observation",
      "summary": "Deepen Tilden and Sibley camping planning knowledge."
    }
  ],
  "navigation": {
    "next_id": "observation-ebrpd-sibley-volcanic-visitor-profile",
    "position": 148,
    "previous_id": "observation-ebrpd-shadow-cliffs-visitor-profile",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "Park Activities"
      ],
      "content": "Sibley Backpack Camp is a primitive hike-in camp for up to 15 people, 0.2 mile uphill from parking, with two picnic tables (one ADA), one serving table, and a pit toilet. Phone reservations are required two or more business days ahead.",
      "observation_id": "observation-ebrpd-sibley-camping-20260922",
      "observed_at": null,
      "observer": "Wayproof web source review",
      "retrieved_at": "2026-09-22T00:00:00-07:00",
      "source_id": "source-ebrpd-sibley-volcanic-park-page"
    }
  ],
  "record": {
    "artifact_refs": [
      "Park Activities"
    ],
    "content": "Sibley Backpack Camp is a primitive hike-in camp for up to 15 people, 0.2 mile uphill from parking, with two picnic tables (one ADA), one serving table, and a pit toilet. Phone reservations are required two or more business days ahead.",
    "observation_id": "observation-ebrpd-sibley-camping-20260922",
    "observed_at": null,
    "observer": "Wayproof web source review",
    "retrieved_at": "2026-09-22T00:00:00-07:00",
    "source_id": "source-ebrpd-sibley-volcanic-park-page"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/sibley-volcanic",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-sibley-volcanic-park-page"
    }
  ]
}