{"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":"4608390","name":"Birch River Plant"},"operator":{"type":"operator","id":"0051081","name":"Brooks Run Mining Co., LLC"},"controller":{"type":"controller","id":"0137121","name":"Pristine Clean Energy LLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11633","name":"Zeigler Coal Holding Company"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"1992-11-24","validTo":"1998-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|C11633|1992-11-24|1998-09-01"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22230","name":"Evergreen Mining Company"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"1994-03-01","validTo":"1998-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|P22230|1994-03-01|1998-09-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11633","name":"Zeigler Coal Holding Company"},"object":{"type":"operator","id":"P22230","name":"Evergreen Mining Company"},"validFrom":"1994-03-01","validTo":"1998-09-01","current":false,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|P22230|1994-03-01|C11633|1992-11-24|85080"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24193","name":"Evergreen Mining Company"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"1998-09-02","validTo":"2004-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|P24193|1998-09-02|2004-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06656","name":"Horizon Natural Resources Incorporated"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"1998-09-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|C06656|1998-09-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06656","name":"Horizon Natural Resources Incorporated"},"object":{"type":"operator","id":"P24193","name":"Evergreen Mining Company"},"validFrom":"1998-09-02","validTo":"2004-09-30","current":false,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|P24193|1998-09-02|C06656|1998-09-02|72665"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2003-02-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0041211|2003-02-01|2016-07-25"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0054636","name":"ICG Eastern LLC"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2004-10-01","validTo":"2019-09-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0054636|2004-10-01|2019-09-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0045307","name":"International Coal Group Inc (ICG)"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2004-10-01","validTo":"2011-06-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0045307|2004-10-01|2011-06-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0045307","name":"International Coal Group Inc (ICG)"},"object":{"type":"operator","id":"0054636","name":"ICG Eastern LLC"},"validFrom":"2004-10-01","validTo":"2011-06-14","current":false,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0054636|2004-10-01|0045307|2004-10-01|5283"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2011-06-15","validTo":"2025-01-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|C15561|2011-06-15|2025-01-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15561","name":"Arch Resources Inc"},"object":{"type":"operator","id":"0054636","name":"ICG Eastern LLC"},"validFrom":"2011-06-15","validTo":"2019-09-03","current":false,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0054636|2004-10-01|C15561|2011-06-15|96120"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2016-07-26","validTo":"2017-10-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0127923|2016-07-26|2017-10-04"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0137121","name":"Pristine Clean Energy LLC"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2017-10-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0137121|2017-10-05|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051081","name":"Brooks Run Mining Co., LLC"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2019-09-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0051081|2019-09-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"0051081","name":"Brooks Run Mining Co., LLC"},"validFrom":"2019-09-04","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0051081|2019-09-04|0041211|2003-02-01|1661"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"0051081","name":"Brooks Run Mining Co., LLC"},"validFrom":"2019-09-04","validTo":"2017-10-04","current":false,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0051081|2019-09-04|0127923|2016-07-26|25079"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0137121","name":"Pristine Clean Energy LLC"},"object":{"type":"operator","id":"0051081","name":"Brooks Run Mining Co., LLC"},"validFrom":"2019-09-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0051081|2019-09-04|0137121|2017-10-05|27628"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0189840","name":"Core Natural Resources Inc"},"object":{"type":"mine","id":"4608390","name":"Birch River Plant"},"validFrom":"2025-01-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0189840|2025-01-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0189840","name":"Core Natural Resources Inc"},"object":{"type":"operator","id":"0054636","name":"ICG Eastern LLC"},"validFrom":"2025-01-14","validTo":"2019-09-03","current":false,"derived":true,"evidenceMineId":"4608390","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608390|0054636|2004-10-01|0189840|2025-01-14|40467"}}],"coverage":{"historyRecords":8,"edgeCount":20,"intervalAnomalies":3,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608390","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"}}