{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-ohlone-map-cartography",
        "evidence_ids": [
          "evidence-ohlone-map-cartography"
        ],
        "predicate": "map_cartography",
        "spatial_scope_ids": [
          "scope-ohlone-wilderness-trail"
        ],
        "subject_id": "trail-ohlone-wilderness",
        "temporal_scope": {
          "ends_on": null,
          "starts_on": "2025-08-01"
        },
        "value": {
          "contour_interval_feet": 40,
          "inches_to_miles": 0.45,
          "scale": "1:28,750"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-ohlone-map-cartography",
          "evidence_id": "evidence-ohlone-map-cartography",
          "notes": "",
          "observation_id": "observation-ohlone-map-rose-peak",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "PDF page 1"
          ],
          "content": "The map labels Rose Peak at 3,817 feet and uses a 1:28,750 scale with 40-foot contour intervals.",
          "observation_id": "observation-ohlone-map-rose-peak",
          "observed_at": "2025-08-01T00:00:00+00:00",
          "observer": "Wayproof source review",
          "retrieved_at": "2026-09-20T00:00:00+00:00",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/sites/default/files/Ohlone-Wilderness-Permit-Map-11x17.pdf",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "trail-ohlone-wilderness",
      "kind": "trail",
      "name": "Ohlone Wilderness Trail"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-ohlone-map-2025-08",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/claims/claim-ohlone-map-cartography.json",
      "reason": "Add the August 2025 Ohlone map as dated spatial evidence without reviving its obsolete permit title.",
      "record_id": "claim-ohlone-map-cartography",
      "record_type": "claim",
      "summary": "Ingest the August 2025 Ohlone map as spatial evidence while bounding its permit-era title."
    }
  ],
  "navigation": {
    "next_id": "claim-ohlone-map-corridor-distances",
    "position": 1126,
    "previous_id": "claim-ohlone-map-backcountry-camps",
    "total": 3965
  },
  "observations": [
    {
      "artifact_refs": [
        "PDF page 1"
      ],
      "content": "The map labels Rose Peak at 3,817 feet and uses a 1:28,750 scale with 40-foot contour intervals.",
      "observation_id": "observation-ohlone-map-rose-peak",
      "observed_at": "2025-08-01T00:00:00+00:00",
      "observer": "Wayproof source review",
      "retrieved_at": "2026-09-20T00:00:00+00:00",
      "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
    }
  ],
  "record": {
    "claim_id": "claim-ohlone-map-cartography",
    "evidence_ids": [
      "evidence-ohlone-map-cartography"
    ],
    "predicate": "map_cartography",
    "spatial_scope_ids": [
      "scope-ohlone-wilderness-trail"
    ],
    "subject_id": "trail-ohlone-wilderness",
    "temporal_scope": {
      "ends_on": null,
      "starts_on": "2025-08-01"
    },
    "value": {
      "contour_interval_feet": 40,
      "inches_to_miles": 0.45,
      "scale": "1:28,750"
    }
  },
  "record_type": "claim",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/sites/default/files/Ohlone-Wilderness-Permit-Map-11x17.pdf",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-ohlone-wilderness-map-2025-08"
    }
  ]
}