{"data":{"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 control"},"transactionTime":{"observedAt":"2026-10-13T11:19:05.459773+00:00","meaning":"time the checksum-addressed MDRS artifacts were observed by the PostgreSQL ingestion"},"derivation":{"controllerControlsOperator":"intersection of controller and operator valid-time intervals evidenced through this mine","currentIdentity":"current controller and operator are asserted only by the MDRS Mines snapshot"}},"current":{"mine":{"type":"mine","id":"1513258","name":"Ivel Plant"},"operator":{"type":"operator","id":"0204373","name":"Ralco Operations, LLC."},"controller":{"type":"controller","id":"0187661","name":"Eric  Clark"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02496","name":"Costain Group PLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C02496|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P12944","name":"Transcontinental Coal Processing Inc"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1981-12-01","validTo":"1983-02-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P12944|1981-12-01|1983-02-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02675","name":"Transcontinental Energy Corp"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1981-12-01","validTo":"1983-02-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C02675|1981-12-01|1983-02-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02675","name":"Transcontinental Energy Corp"},"object":{"type":"operator","id":"P12944","name":"Transcontinental Coal Processing Inc"},"validFrom":"1981-12-01","validTo":"1983-02-13","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P12944|1981-12-01|C02675|1981-12-01|60398"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10193","name":"B C  Gottwald"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1983-01-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C10193|1983-01-20|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P13994","name":"Transcontinental Coal Processing Inc"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1983-02-14","validTo":"1989-02-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P13994|1983-02-14|1989-02-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10193","name":"B C  Gottwald"},"object":{"type":"operator","id":"P13994","name":"Transcontinental Coal Processing Inc"},"validFrom":"1983-02-14","validTo":"1989-02-13","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P13994|1983-02-14|C10193|1983-01-20|81423"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21731","name":"Costain Coal Inc"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1989-02-14","validTo":"1997-07-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P21731|1989-02-14|1997-07-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02496","name":"Costain Group PLC"},"object":{"type":"operator","id":"P21731","name":"Costain Coal Inc"},"validFrom":"1989-02-14","validTo":"1997-07-20","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P21731|1989-02-14|C02496|1950-01-01|58692"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14759","name":"John  Harris"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1996-11-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C14759|1996-11-20|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15585","name":"Iracoal Incorporated"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1997-01-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C15585|1997-01-31|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23722","name":"Lodestar Energy, Inc"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"1997-07-21","validTo":"2003-07-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P23722|1997-07-21|2003-07-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15585","name":"Iracoal Incorporated"},"object":{"type":"operator","id":"P23722","name":"Lodestar Energy, Inc"},"validFrom":"1997-07-21","validTo":"2003-07-13","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P23722|1997-07-21|C15585|1997-01-31|96266"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C16073","name":"John C  Smith Jr"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2001-03-19","validTo":"2006-01-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C16073|2001-03-19|2006-01-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041669","name":"Wexford Capital LLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2003-05-12","validTo":"2010-10-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0041669|2003-05-12|2010-10-04"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051241","name":"Central Appalachia Mining LLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2003-07-14","validTo":"2004-03-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0051241|2003-07-14|2004-03-12"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041669","name":"Wexford Capital LLC"},"object":{"type":"operator","id":"0051241","name":"Central Appalachia Mining LLC"},"validFrom":"2003-07-14","validTo":"2004-03-12","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0051241|2003-07-14|0041669|2003-05-12|2883"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24602","name":"Appalachian Fuels LLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2004-03-13","validTo":"2006-05-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P24602|2004-03-13|2006-05-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C16073","name":"John C  Smith Jr"},"object":{"type":"operator","id":"P24602","name":"Appalachian Fuels LLC"},"validFrom":"2004-03-13","validTo":"2006-01-16","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P24602|2004-03-13|C16073|2001-03-19|98257"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0056689","name":"Energy Coal Resources Inc"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2006-01-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0056689|2006-01-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0056689","name":"Energy Coal Resources Inc"},"object":{"type":"operator","id":"P24602","name":"Appalachian Fuels LLC"},"validFrom":"2006-01-17","validTo":"2006-05-15","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P24602|2004-03-13|0056689|2006-01-17|7404"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0059789","name":"Harold  Sergent  et al"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2006-05-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0059789|2006-05-15|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0071443","name":"Black Diamond Mining Co LLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2006-05-16","validTo":"2009-08-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0071443|2006-05-16|2009-08-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0059789","name":"Harold  Sergent  et al"},"object":{"type":"operator","id":"0071443","name":"Black Diamond Mining Co LLC"},"validFrom":"2006-05-16","validTo":"2009-08-18","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0071443|2006-05-16|0059789|2006-05-15|7952"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05735","name":"Roger L  Kirk et al"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2008-07-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C05735|2008-07-09|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23589","name":"Prater Creek Coal Corp."},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2009-08-19","validTo":"2011-01-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P23589|2009-08-19|2011-01-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14759","name":"John  Harris"},"object":{"type":"operator","id":"P23589","name":"Prater Creek Coal Corp."},"validFrom":"2009-08-19","validTo":"2011-01-11","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|P23589|2009-08-19|C14759|1996-11-20|93811"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0098293","name":"Rhino Resource Partners LP"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2010-10-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0098293|2010-10-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0098293","name":"Rhino Resource Partners LP"},"object":{"type":"operator","id":"0051241","name":"Central Appalachia Mining LLC"},"validFrom":"2010-10-05","validTo":"2004-03-12","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0051241|2003-07-14|0098293|2010-10-05|16111"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0116205","name":"Dorchester Coal Co. L. P."},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2011-01-12","validTo":"2012-12-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0116205|2011-01-12|2012-12-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06934","name":"John P  Baugues Jr"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2011-01-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|C06934|2011-01-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06934","name":"John P  Baugues Jr"},"object":{"type":"operator","id":"0116205","name":"Dorchester Coal Co. L. P."},"validFrom":"2011-01-12","validTo":"2012-12-09","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0116205|2011-01-12|C06934|2011-01-12|73251"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0093325","name":"Red Bud Dock LLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2012-12-10","validTo":"2013-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0093325|2012-12-10|2013-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05735","name":"Roger L  Kirk et al"},"object":{"type":"operator","id":"0093325","name":"Red Bud Dock LLC"},"validFrom":"2012-12-10","validTo":"2013-03-31","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0093325|2012-12-10|C05735|2008-07-09|69731"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05735","name":"Chris  Frye et al"},"object":{"type":"operator","id":"0093325","name":"Red Bud Dock LLC"},"validFrom":"2012-12-10","validTo":"2013-03-31","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0093325|2012-12-10|C05735|2008-07-09|69732"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0107601","name":"Dennis  Johnson"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2013-01-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0107601|2013-01-29|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0126473","name":"Appalachian Mining & Reclamation, LLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2013-04-01","validTo":"2017-09-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0126473|2013-04-01|2017-09-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0107601","name":"Dennis  Johnson"},"object":{"type":"operator","id":"0126473","name":"Appalachian Mining & Reclamation, LLC"},"validFrom":"2013-04-01","validTo":"2017-09-23","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0126473|2013-04-01|0107601|2013-01-29|19265"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0153373","name":"SNR RAILOPS LLC"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2017-09-24","validTo":"2022-12-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0153373|2017-09-24|2022-12-11"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0136321","name":"David J Stone"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2017-09-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0136321|2017-09-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0136321","name":"David J Stone"},"object":{"type":"operator","id":"0153373","name":"SNR RAILOPS LLC"},"validFrom":"2017-09-24","validTo":"2022-12-11","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0153373|2017-09-24|0136321|2017-09-24|27479"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0069491","name":"Jody Dale Puckett"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2022-03-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0069491|2022-03-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0181655","name":"Tahiti Energy, Inc."},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2022-12-12","validTo":"2024-09-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0181655|2022-12-12|2024-09-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0069491","name":"Jody Dale Puckett"},"object":{"type":"operator","id":"0181655","name":"Tahiti Energy, Inc."},"validFrom":"2022-12-12","validTo":"2024-09-17","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0181655|2022-12-12|0069491|2022-03-30|9863"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0198373","name":"Villam Land, LLC."},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2024-09-18","validTo":"2025-07-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0198373|2024-09-18|2025-07-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0187661","name":"Eric  Clark et al"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2024-09-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0187661|2024-09-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0187661","name":"Eric  Clark et al"},"object":{"type":"operator","id":"0198373","name":"Villam Land, LLC."},"validFrom":"2024-09-18","validTo":"2025-07-07","current":false,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0198373|2024-09-18|0187661|2024-09-18|39955"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0204373","name":"Ralco Operations, LLC."},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2025-07-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0204373|2025-07-08|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0187661","name":"Eric  Clark et al"},"object":{"type":"mine","id":"1513258","name":"Ivel Plant"},"validFrom":"2025-07-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0187661|2025-07-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0187661","name":"Eric  Clark et al"},"object":{"type":"operator","id":"0204373","name":"Ralco Operations, LLC."},"validFrom":"2025-07-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1513258","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513258|0204373|2025-07-08|0187661|2025-07-08|39956"}}],"coverage":{"historyRecords":18,"edgeCount":50,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1513258","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}