{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-miller-knox-visitor-profile",
        "evidence_ids": [
          "evidence-ebrpd-miller-knox-visitor-profile"
        ],
        "predicate": "visitor_profile",
        "spatial_scope_ids": [
          "scope-miller-knox-regional-shoreline"
        ],
        "subject_id": "park-miller-knox-regional-shoreline",
        "temporal_scope": null,
        "value": {
          "access": {
            "main": "Dornan Drive entrance",
            "staging": [
              "Dornan Drive north lot",
              "two picnic-area lots",
              "Ferry Point"
            ],
            "walk_in": [
              "Canal Boulevard",
              "Crest Avenue",
              "Dornan Drive",
              "West Ridge Point Trail",
              "Keller Beach",
              "Seacliff Drive"
            ]
          },
          "accessible_facilities": [
            "all picnic areas",
            "Ferry Point ramp to high-tide line"
          ],
          "acreage": 307,
          "activities": [
            "boating",
            "dogs",
            "fishing",
            "hiking",
            "kid-friendly",
            "model boats planes and trains",
            "picnicking",
            "swimming"
          ],
          "address": "900 Dornan Drive, Richmond, CA 94801",
          "features": {
            "fishing": "Ferry Point pier",
            "lagoon_loop_miles": 1,
            "swimming": "Keller Beach; no lifeguards",
            "water_trail_sites": [
              "Keller Beach",
              "Ferry Point"
            ]
          },
          "hours": "05:00–22:00 unless otherwise posted or permitted",
          "parking_fee_usd": 0,
          "restrictions": {
            "alcohol": false,
            "dogs_in_lagoon": false,
            "dogs_main_park": "six-foot leash"
          }
        }
      },
      "evidence": [
        {
          "claim_id": "claim-miller-knox-visitor-profile",
          "evidence_id": "evidence-ebrpd-miller-knox-visitor-profile",
          "notes": "Direct transcription and conservative structuring of planning-relevant fields from the official park page.",
          "observation_id": "observation-ebrpd-miller-knox-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-miller-knox-visitor-profile",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T07:00:00+00:00",
          "source_id": "source-ebrpd-miller-knox-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/miller-knox",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-miller-knox-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "park-miller-knox-regional-shoreline",
      "kind": "park",
      "name": "Miller/Knox Regional Shoreline"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-parks-batch-10",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/sources/source-ebrpd-miller-knox-park-page.json",
      "reason": "Add a deduplicated planning profile from the live EBRPD preserve page reviewed on 2026-09-20.",
      "record_id": "source-ebrpd-miller-knox-park-page",
      "record_type": "source",
      "summary": "Add four additional previously uncaptured EBRPD park visitor profiles."
    }
  ],
  "navigation": {
    "next_id": "source-ebrpd-mission-peak-map",
    "position": 60,
    "previous_id": "source-ebrpd-mclaughlin-eastshore-park-page",
    "total": 587
  },
  "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-miller-knox-visitor-profile",
      "observed_at": null,
      "observer": "Wayproof live source review",
      "retrieved_at": "2026-09-20T07:00:00+00:00",
      "source_id": "source-ebrpd-miller-knox-park-page"
    }
  ],
  "record": {
    "locator": "https://www.ebparks.org/parks/miller-knox",
    "publisher": "East Bay Regional Park District",
    "source_id": "source-ebrpd-miller-knox-park-page"
  },
  "record_type": "source",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/miller-knox",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-miller-knox-park-page"
    }
  ]
}