{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-whitney-nps-elevation",
        "evidence_ids": [
          "evidence-whitney-nps-elevation-0"
        ],
        "predicate": "published_summit_elevation",
        "spatial_scope_ids": [
          "scope-peak-mount-whitney"
        ],
        "subject_id": "peak-mount-whitney",
        "temporal_scope": null,
        "value": {
          "feet": 14505,
          "meters": 4421,
          "publisher": "National Park Service",
          "vertical_datum": "NAVD88"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-whitney-nps-elevation",
          "evidence_id": "evidence-whitney-nps-elevation-0",
          "notes": "",
          "observation_id": "observation-nps-seki-whitney-20260923",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "NPS identifies Mount Whitney as the tallest peak in the lower 48, on the Sequoia National Park–Inyo National Forest boundary. It publishes a 14,505-foot NAVD88 summit elevation, the 10.7-mile Whitney Portal approach, seasonal equipment qualification, and a roughly 60-mile west-side High Sierra Trail approach.",
          "observation_id": "observation-nps-seki-whitney-20260923",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-23T01:00:00+00:00",
          "source_id": "source-nps-seki-whitney"
        }
      ],
      "sources": [
        {
          "locator": "https://www.nps.gov/seki/planyourvisit/whitney.htm",
          "publisher": "National Park Service",
          "source_id": "source-nps-seki-whitney"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-whitney-peakbagger-measurement",
        "evidence_ids": [
          "evidence-whitney-peakbagger-measurement-4"
        ],
        "predicate": "reported_summit_measurement",
        "spatial_scope_ids": [
          "scope-peak-mount-whitney"
        ],
        "subject_id": "peak-mount-whitney",
        "temporal_scope": null,
        "value": {
          "feet": 14500.7,
          "measured_on": "2026-05-09",
          "meters": 4419.8,
          "method": "differential GNSS",
          "reported_error_ft": 0.04,
          "vertical_datum": "NAVD88"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-whitney-peakbagger-measurement",
          "evidence_id": "evidence-whitney-peakbagger-measurement-4",
          "notes": "",
          "observation_id": "observation-peakbagger-mount-whitney-20260923",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "Peakbagger reports 14,500.7 feet NAVD88 from a May 9, 2026 differential-GNSS observation, WGS84 coordinates 36.57861, -118.291999, prominence 10,081 feet, isolation 1,646.42 miles, and the historical alternate name Fishermans Peak.",
          "observation_id": "observation-peakbagger-mount-whitney-20260923",
          "observed_at": "2026-05-09T00:00:00+00:00",
          "observer": "",
          "retrieved_at": "2026-09-23T01:00:00+00:00",
          "source_id": "source-peakbagger-mount-whitney"
        }
      ],
      "sources": [
        {
          "locator": "https://www.peakbagger.com/peak.aspx?pid=2829",
          "publisher": "Peakbagger.com",
          "source_id": "source-peakbagger-mount-whitney"
        }
      ]
    },
    {
      "claim": {
        "claim_id": "claim-whitney-usgs-elevation",
        "evidence_ids": [
          "evidence-whitney-usgs-elevation-3"
        ],
        "predicate": "published_summit_elevation",
        "spatial_scope_ids": [
          "scope-peak-mount-whitney"
        ],
        "subject_id": "peak-mount-whitney",
        "temporal_scope": null,
        "value": {
          "feet": 14494,
          "publication_context": "state high-point table",
          "publisher": "U.S. Geological Survey"
        }
      },
      "evidence": [
        {
          "claim_id": "claim-whitney-usgs-elevation",
          "evidence_id": "evidence-whitney-usgs-elevation-3",
          "notes": "",
          "observation_id": "observation-usgs-highest-lowest-elevations-20260923",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [],
          "content": "The USGS state high-point table identifies Mount Whitney in Inyo–Tulare as California's highest point and publishes an elevation of 14,494 feet.",
          "observation_id": "observation-usgs-highest-lowest-elevations-20260923",
          "observed_at": null,
          "observer": "",
          "retrieved_at": "2026-09-23T01:00:00+00:00",
          "source_id": "source-usgs-highest-lowest-elevations"
        }
      ],
      "sources": [
        {
          "locator": "https://www.usgs.gov/educational-resources/highest-and-lowest-elevations",
          "publisher": "U.S. Geological Survey",
          "source_id": "source-usgs-highest-lowest-elevations"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "peak-mount-whitney",
      "kind": "peak",
      "name": "Mount Whitney"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260923-whitney-human-planning-foundation",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/gaps/gap-whitney-published-elevation-conflict.json",
      "reason": "Publish a human-useful Mount Whitney identity, approach, source-conflict, and recheck foundation.",
      "record_id": "gap-whitney-published-elevation-conflict",
      "record_type": "gap",
      "summary": "Add a source-backed Mount Whitney human-planning foundation with direct peak facts, approach choices, explicit elevation conflict, and current-condition rechecks."
    }
  ],
  "navigation": {
    "next_id": "gap-whitney-technical-route-topology",
    "position": 272,
    "previous_id": "gap-whitney-current-conditions",
    "total": 299
  },
  "observations": [
    {
      "artifact_refs": [],
      "content": "NPS identifies Mount Whitney as the tallest peak in the lower 48, on the Sequoia National Park–Inyo National Forest boundary. It publishes a 14,505-foot NAVD88 summit elevation, the 10.7-mile Whitney Portal approach, seasonal equipment qualification, and a roughly 60-mile west-side High Sierra Trail approach.",
      "observation_id": "observation-nps-seki-whitney-20260923",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-23T01:00:00+00:00",
      "source_id": "source-nps-seki-whitney"
    },
    {
      "artifact_refs": [],
      "content": "Peakbagger reports 14,500.7 feet NAVD88 from a May 9, 2026 differential-GNSS observation, WGS84 coordinates 36.57861, -118.291999, prominence 10,081 feet, isolation 1,646.42 miles, and the historical alternate name Fishermans Peak.",
      "observation_id": "observation-peakbagger-mount-whitney-20260923",
      "observed_at": "2026-05-09T00:00:00+00:00",
      "observer": "",
      "retrieved_at": "2026-09-23T01:00:00+00:00",
      "source_id": "source-peakbagger-mount-whitney"
    },
    {
      "artifact_refs": [],
      "content": "The USGS state high-point table identifies Mount Whitney in Inyo–Tulare as California's highest point and publishes an elevation of 14,494 feet.",
      "observation_id": "observation-usgs-highest-lowest-elevations-20260923",
      "observed_at": null,
      "observer": "",
      "retrieved_at": "2026-09-23T01:00:00+00:00",
      "source_id": "source-usgs-highest-lowest-elevations"
    }
  ],
  "record": {
    "gap_id": "gap-whitney-published-elevation-conflict",
    "question": "Which published Mount Whitney elevation should a consumer display?",
    "reason": "Current NPS, USGS, and a 2026 Peakbagger-reported GNSS measurement publish materially different elevations with different methods and contexts; preserve each value and its provenance rather than silently selecting one.",
    "related_ids": [
      "claim-whitney-nps-elevation",
      "claim-whitney-usgs-elevation",
      "claim-whitney-peakbagger-measurement"
    ]
  },
  "record_type": "gap",
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    {
      "record": {
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        "evidence_ids": [
          "evidence-whitney-nps-elevation-0"
        ],
        "predicate": "published_summit_elevation",
        "spatial_scope_ids": [
          "scope-peak-mount-whitney"
        ],
        "subject_id": "peak-mount-whitney",
        "temporal_scope": null,
        "value": {
          "feet": 14505,
          "meters": 4421,
          "publisher": "National Park Service",
          "vertical_datum": "NAVD88"
        }
      },
      "record_id": "claim-whitney-nps-elevation",
      "record_type": "claim"
    },
    {
      "record": {
        "claim_id": "claim-whitney-usgs-elevation",
        "evidence_ids": [
          "evidence-whitney-usgs-elevation-3"
        ],
        "predicate": "published_summit_elevation",
        "spatial_scope_ids": [
          "scope-peak-mount-whitney"
        ],
        "subject_id": "peak-mount-whitney",
        "temporal_scope": null,
        "value": {
          "feet": 14494,
          "publication_context": "state high-point table",
          "publisher": "U.S. Geological Survey"
        }
      },
      "record_id": "claim-whitney-usgs-elevation",
      "record_type": "claim"
    },
    {
      "record": {
        "claim_id": "claim-whitney-peakbagger-measurement",
        "evidence_ids": [
          "evidence-whitney-peakbagger-measurement-4"
        ],
        "predicate": "reported_summit_measurement",
        "spatial_scope_ids": [
          "scope-peak-mount-whitney"
        ],
        "subject_id": "peak-mount-whitney",
        "temporal_scope": null,
        "value": {
          "feet": 14500.7,
          "measured_on": "2026-05-09",
          "meters": 4419.8,
          "method": "differential GNSS",
          "reported_error_ft": 0.04,
          "vertical_datum": "NAVD88"
        }
      },
      "record_id": "claim-whitney-peakbagger-measurement",
      "record_type": "claim"
    }
  ],
  "sources": [
    {
      "locator": "https://www.nps.gov/seki/planyourvisit/whitney.htm",
      "publisher": "National Park Service",
      "source_id": "source-nps-seki-whitney"
    },
    {
      "locator": "https://www.peakbagger.com/peak.aspx?pid=2829",
      "publisher": "Peakbagger.com",
      "source_id": "source-peakbagger-mount-whitney"
    },
    {
      "locator": "https://www.usgs.gov/educational-resources/highest-and-lowest-elevations",
      "publisher": "U.S. Geological Survey",
      "source_id": "source-usgs-highest-lowest-elevations"
    }
  ]
}