{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-ebrpd-camping-release-policy",
        "evidence_ids": [
          "evidence-ebrpd-camping-release-policy"
        ],
        "predicate": "reservation_release_policy",
        "spatial_scope_ids": [
          "scope-del-valle-park"
        ],
        "subject_id": "org-east-bay-regional-park-district",
        "temporal_scope": null,
        "value": {
          "family_and_cabin": "rolling_12_weeks",
          "group_and_backpacking": "six_month_blocks_phone_only",
          "opening_day_max_reservations_per_call": 2
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ebrpd-camping-release-policy",
          "evidence_id": "evidence-ebrpd-camping-release-policy",
          "notes": "",
          "observation_id": "observation-ebrpd-camping-release",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "District family and cabin inventory is released on a rolling twelve-week window. Group and backpack inventory is released in six-month blocks by phone, with at most two reservations per opening-date call.",
          "observation_id": "observation-ebrpd-camping-release",
          "observed_at": null,
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-camping"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/recreation/camping",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-camping"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "org-east-bay-regional-park-district",
      "kind": "organization",
      "name": "East Bay Regional Park District"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-del-valle-campground-corpus",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-ebrpd-camping.json",
      "reason": "Add the official EBRPD Del Valle campground corpus, preserving dated conflicts and live recheck boundaries.",
      "record_id": "source-ebrpd-camping",
      "record_type": "source",
      "summary": "Ingest eight official EBRPD campground sources with current, dated, conflicting, and volatile evidence kept distinct."
    }
  ],
  "navigation": {
    "next_id": "source-ebrpd-carquinez-strait-park-page",
    "position": 19,
    "previous_id": "source-ebrpd-brushy-peak-park-page",
    "total": 587
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "District family and cabin inventory is released on a rolling twelve-week window. Group and backpack inventory is released in six-month blocks by phone, with at most two reservations per opening-date call.",
      "observation_id": "observation-ebrpd-camping-release",
      "observed_at": null,
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-camping"
    }
  ],
  "record": {
    "locator": "https://www.ebparks.org/recreation/camping",
    "publisher": "East Bay Regional Park District",
    "source_id": "source-ebrpd-camping"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/recreation/camping",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-camping"
    }
  ]
}