{"data":{"schemaVersion":"realm.mine-profile.v1","generatedAt":"2026-10-13T11:26:59.401Z","identity":{"mine_id":"3304526","name":"Buckingham  Mine","status":"Abandoned","status_date":"2022-05-04","mine_type":"Facility","coal_metal":"C","commodity":"Coal (Bituminous)","state":"OH","county":"Perry","nearest_town":"Corning","operator_id":"0161793","operator_name":"CCU Coal and Construction LLC","controller_id":"C04381","controller_name":"Charles C  Ungurean","district":"M2","office":"Warrendale District","employees":0,"latitude":39.586667,"longitude":-82.065},"coverage":{"contributingSources":17,"registeredSources":20,"sourceRows":13486},"relationships":{"schemaVersion":"realm.temporal-relationships.v1","temporalSemantics":{"validTime":{"granularity":"date","bounds":"inclusive","nullStart":"start date not published in the upstream history row","nullEnd":"open-ended in the upstream history row; not independent proof of present 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