{"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":"4608968","name":"Dry Branch Coalburg"},"operator":{"type":"operator","id":"P24251","name":"I O Coal Company, LLC"},"controller":{"type":"controller","id":"0071611","name":"Patriot Coal Corporation"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10294","name":"Chris  Cline"},"object":{"type":"mine","id":"4608968","name":"Dry Branch Coalburg"},"validFrom":"1999-09-01","validTo":"2003-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|C10294|1999-09-01|2003-03-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050659","name":"Europa Coal Company, Inc."},"object":{"type":"mine","id":"4608968","name":"Dry Branch Coalburg"},"validFrom":"2002-08-28","validTo":"2003-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|0050659|2002-08-28|2003-03-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10294","name":"Chris  Cline"},"object":{"type":"mine","id":"4608968","name":"Dry Branch Coalburg"},"validFrom":"2002-08-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|C10294|2002-08-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10294","name":"Chris  Cline"},"object":{"type":"operator","id":"0050659","name":"Europa Coal Company, Inc."},"validFrom":"2002-08-28","validTo":"2003-03-31","current":false,"derived":true,"evidenceMineId":"4608968","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|0050659|2002-08-28|C10294|2002-08-28|81693"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24251","name":"I O Coal Company, LLC"},"object":{"type":"mine","id":"4608968","name":"Dry Branch Coalburg"},"validFrom":"2003-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|P24251|2003-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10294","name":"Chris  Cline"},"object":{"type":"operator","id":"P24251","name":"I O Coal Company, LLC"},"validFrom":"2003-04-01","validTo":"2003-03-31","current":false,"derived":true,"evidenceMineId":"4608968","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|P24251|2003-04-01|C10294|1999-09-01|81685"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15187","name":"Timothy G Elliott"},"object":{"type":"mine","id":"4608968","name":"Dry Branch Coalburg"},"validFrom":"2003-04-01","validTo":"2006-03-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|C15187|2003-04-01|2006-03-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15187","name":"Timothy G Elliott"},"object":{"type":"operator","id":"P24251","name":"I O Coal Company, LLC"},"validFrom":"2003-04-01","validTo":"2006-03-17","current":false,"derived":true,"evidenceMineId":"4608968","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|P24251|2003-04-01|C15187|2003-04-01|94948"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0056849","name":"Magnum Coal Company"},"object":{"type":"mine","id":"4608968","name":"Dry Branch Coalburg"},"validFrom":"2006-03-18","validTo":"2008-07-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|0056849|2006-03-18|2008-07-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0056849","name":"Magnum Coal Company"},"object":{"type":"operator","id":"P24251","name":"I O Coal Company, LLC"},"validFrom":"2006-03-18","validTo":"2008-07-22","current":false,"derived":true,"evidenceMineId":"4608968","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|P24251|2003-04-01|0056849|2006-03-18|7520"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0071611","name":"Patriot Coal Corporation"},"object":{"type":"mine","id":"4608968","name":"Dry Branch Coalburg"},"validFrom":"2008-07-23","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|0071611|2008-07-23|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0071611","name":"Patriot Coal Corporation"},"object":{"type":"operator","id":"P24251","name":"I O Coal Company, LLC"},"validFrom":"2008-07-23","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608968","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608968|P24251|2003-04-01|0071611|2008-07-23|10395"}}],"coverage":{"historyRecords":5,"edgeCount":12,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608968","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"}}