{"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":"4608683","name":"Red Cedar Surface Mine"},"operator":{"type":"operator","id":"0154153","name":"Lexington Coal Company, LLC"},"controller":{"type":"controller","id":"0137221","name":"Lexington Coal Holdings, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"1991-12-01","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|C02508|1991-12-01|2011-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15194","name":"Douglas M  Epling"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"1994-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|C15194|1994-12-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23018","name":"Mountain Edge Mining Inc"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"1997-12-01","validTo":"2002-06-27","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P23018|1997-12-01|2002-06-27"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15194","name":"Douglas M  Epling"},"object":{"type":"operator","id":"P23018","name":"Mountain Edge Mining Inc"},"validFrom":"1997-12-01","validTo":"2002-06-27","current":false,"derived":true,"evidenceMineId":"4608683","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P23018|1997-12-01|C15194|1994-12-01|94981"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2001-08-14","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|C02508|2001-08-14|2011-05-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24712","name":"Endurance Mining"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2002-06-28","validTo":"2013-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P24712|2002-06-28|2013-12-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P24712","name":"Endurance Mining"},"validFrom":"2002-06-28","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"4608683","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P24712|2002-06-28|C02508|2001-08-14|59530"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|0041211|2011-06-01|2016-07-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2011-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|0041211|2011-06-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P24712","name":"Endurance Mining"},"validFrom":"2011-06-01","validTo":"2013-12-31","current":false,"derived":true,"evidenceMineId":"4608683","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P24712|2002-06-28|0041211|2011-06-01|2338"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21654","name":"Independence Coal Company, LLC"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2014-01-01","validTo":"2017-10-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P21654|2014-01-01|2017-10-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P21654","name":"Independence Coal Company, LLC"},"validFrom":"2014-01-01","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"4608683","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P21654|2014-01-01|0041211|2011-06-01|2131"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P21654","name":"Independence Coal Company, LLC"},"validFrom":"2014-01-01","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"4608683","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P21654|2014-01-01|C02508|1991-12-01|59280"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|0127923|2016-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P21654","name":"Independence Coal Company, LLC"},"validFrom":"2016-07-26","validTo":"2017-10-22","current":false,"derived":true,"evidenceMineId":"4608683","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|P21654|2014-01-01|0127923|2016-07-26|25592"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0154153","name":"Lexington Coal Company, LLC"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2017-10-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|0154153|2017-10-23|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0137221","name":"Lexington Coal Holdings, Inc"},"object":{"type":"mine","id":"4608683","name":"Red Cedar Surface Mine"},"validFrom":"2017-10-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|0137221|2017-10-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0137221","name":"Lexington Coal Holdings, Inc"},"object":{"type":"operator","id":"0154153","name":"Lexington Coal Company, LLC"},"validFrom":"2017-10-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608683","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608683|0154153|2017-10-23|0137221|2017-10-23|27697"}}],"coverage":{"historyRecords":7,"edgeCount":18,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608683","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"}}