{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-garin-arroyo-flats-profile",
        "evidence_ids": [
          "evidence-garin-arroyo-flats-official-profile"
        ],
        "predicate": "site_inventory",
        "spatial_scope_ids": [
          "scope-garin-arroyo-flats-group-camp"
        ],
        "subject_id": "group-camp-garin-arroyo-flats",
        "temporal_scope": null,
        "value": {
          "chemical_toilets": 2,
          "double_bbq": 1,
          "drinking_fountain": true,
          "fire_circle": true,
          "maximum_people": 75,
          "minimum_advance_business_days": 3,
          "minimum_people": 25,
          "reservation_channel": "phone",
          "site_type": "primitive_group_camp",
          "tables_10ft": 5
        }
      },
      "evidence": [
        {
          "claim_id": "claim-garin-arroyo-flats-profile",
          "evidence_id": "evidence-garin-arroyo-flats-official-profile",
          "notes": "The official park page directly publishes capacity, facilities, lead time, hours, and fees.",
          "observation_id": "observation-ebrpd-garin-camping-20260922",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Camping",
            "Hours",
            "Fees"
          ],
          "content": "The official Garin page describes Arroyo Flats as a reservable group campsite for 25 through 75 people with five 10-foot tables, a double BBQ, drinking fountain, fire circle with benches, and two chemical toilets. Reservations must be made at least three business days in advance by phone. It also publishes seasonal gate hours, a 10pm-5am curfew, and park-entry fees.",
          "observation_id": "observation-ebrpd-garin-camping-20260922",
          "observed_at": null,
          "observer": "Wayproof web source review",
          "retrieved_at": "2026-09-22T00:00:00-07:00",
          "source_id": "source-ebrpd-garin-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/garin",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-garin-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "group-camp-garin-arroyo-flats",
      "kind": "group_campsite",
      "name": "Arroyo Flats Group Camp"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260922-parks-deep-batch-02-group-camps",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ebrpd-garin-camping-20260922.json",
      "reason": "Publish source-backed Garin and Las Trampas group-camp knowledge through the existing canonical lifecycle.",
      "record_id": "observation-ebrpd-garin-camping-20260922",
      "record_type": "observation",
      "summary": "Deepen Garin Arroyo Flats and Las Trampas Corral group-camp knowledge, preserving source conflict and booking gaps."
    }
  ],
  "navigation": {
    "next_id": "observation-ebrpd-garin-visitor-profile",
    "position": 92,
    "previous_id": "observation-ebrpd-five-canyons-visitor-profile",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "Camping",
        "Hours",
        "Fees"
      ],
      "content": "The official Garin page describes Arroyo Flats as a reservable group campsite for 25 through 75 people with five 10-foot tables, a double BBQ, drinking fountain, fire circle with benches, and two chemical toilets. Reservations must be made at least three business days in advance by phone. It also publishes seasonal gate hours, a 10pm-5am curfew, and park-entry fees.",
      "observation_id": "observation-ebrpd-garin-camping-20260922",
      "observed_at": null,
      "observer": "Wayproof web source review",
      "retrieved_at": "2026-09-22T00:00:00-07:00",
      "source_id": "source-ebrpd-garin-park-page"
    }
  ],
  "record": {
    "artifact_refs": [
      "Camping",
      "Hours",
      "Fees"
    ],
    "content": "The official Garin page describes Arroyo Flats as a reservable group campsite for 25 through 75 people with five 10-foot tables, a double BBQ, drinking fountain, fire circle with benches, and two chemical toilets. Reservations must be made at least three business days in advance by phone. It also publishes seasonal gate hours, a 10pm-5am curfew, and park-entry fees.",
    "observation_id": "observation-ebrpd-garin-camping-20260922",
    "observed_at": null,
    "observer": "Wayproof web source review",
    "retrieved_at": "2026-09-22T00:00:00-07:00",
    "source_id": "source-ebrpd-garin-park-page"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/garin",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-garin-park-page"
    }
  ]
}