{"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":"1518864","name":"Mine #2"},"operator":{"type":"operator","id":"0052459","name":"Vision Coal, Inc."},"controller":{"type":"controller","id":"0101685","name":"Kevin R Yonts"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0043299","name":"Dennis Creg  Yonts"},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2004-05-06","validTo":"2007-09-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0043299|2004-05-06|2007-09-11"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C06191","name":"Benjamin  Hampton"},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2004-09-21","validTo":"2006-04-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|C06191|2004-09-21|2006-04-24"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0054397","name":"H & Q Coal Inc"},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2005-04-19","validTo":"2007-04-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0054397|2005-04-19|2007-04-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06191","name":"Benjamin  Hampton"},"object":{"type":"operator","id":"0054397","name":"H & Q Coal Inc"},"validFrom":"2005-04-19","validTo":"2006-04-24","current":false,"derived":true,"evidenceMineId":"1518864","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0054397|2005-04-19|C06191|2004-09-21|71130"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0059149","name":"Mark E  Daugherty"},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2006-04-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0059149|2006-04-25|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0059149","name":"Mark E  Daugherty"},"object":{"type":"operator","id":"0054397","name":"H & Q Coal Inc"},"validFrom":"2006-04-25","validTo":"2007-04-11","current":false,"derived":true,"evidenceMineId":"1518864","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0054397|2005-04-19|0059149|2006-04-25|7863"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0079864","name":"Up & Running Coal Company Inc."},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2007-04-12","validTo":"2007-04-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0079864|2007-04-12|2007-04-19"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0067211","name":"Clyde D  Fields"},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2007-04-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0067211|2007-04-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0067211","name":"Clyde D  Fields"},"object":{"type":"operator","id":"0079864","name":"Up & Running Coal Company Inc."},"validFrom":"2007-04-12","validTo":"2007-04-19","current":false,"derived":true,"evidenceMineId":"1518864","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0079864|2007-04-12|0067211|2007-04-12|9364"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0054397","name":"H & Q Coal Inc."},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2007-04-20","validTo":"2007-09-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0054397|2007-04-20|2007-09-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0059149","name":"Mark E  Daugherty"},"object":{"type":"operator","id":"0054397","name":"H & Q Coal Inc."},"validFrom":"2007-04-20","validTo":"2007-09-11","current":false,"derived":true,"evidenceMineId":"1518864","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0054397|2007-04-20|0059149|2006-04-25|7864"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C06191","name":"Benjamin  Hampton"},"object":{"type":"operator","id":"0054397","name":"H & Q Coal Inc."},"validFrom":"2007-04-20","validTo":"2006-04-24","current":false,"derived":true,"evidenceMineId":"1518864","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0054397|2007-04-20|C06191|2004-09-21|71131"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0052459","name":"Vision Coal, Inc."},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2007-09-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0052459|2007-09-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0043299","name":"Dennis Creg  Yonts"},"object":{"type":"operator","id":"0052459","name":"Vision Coal, Inc."},"validFrom":"2007-09-12","validTo":"2007-09-11","current":false,"derived":true,"evidenceMineId":"1518864","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0052459|2007-09-12|0043299|2004-05-06|4550"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0101685","name":"Kevin R Yonts"},"object":{"type":"mine","id":"1518864","name":"Mine #2"},"validFrom":"2007-09-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0101685|2007-09-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0101685","name":"Kevin R Yonts"},"object":{"type":"operator","id":"0052459","name":"Vision Coal, Inc."},"validFrom":"2007-09-12","validTo":null,"current":true,"derived":true,"evidenceMineId":"1518864","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518864|0052459|2007-09-12|0101685|2007-09-12|17314"}}],"coverage":{"historyRecords":7,"edgeCount":16,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1518864","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"}}