{"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":"4609291","name":"Mine No 1"},"operator":{"type":"operator","id":"0101586","name":"Blue Ridge Mining, LLC"},"controller":{"type":"controller","id":"0108221","name":"M  Natarajan"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0054469","name":"Patrick  Hopkins"},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2005-11-01","validTo":"2006-11-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0054469|2005-11-01|2006-11-08"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0064469","name":"Jeffrey  Hopkins"},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2006-11-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0064469|2006-11-09|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0092147","name":"Gunz Energy Inc"},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2008-07-02","validTo":"2008-11-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0092147|2008-07-02|2008-11-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11979","name":"Martin E  McGee"},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2008-07-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|C11979|2008-07-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11979","name":"Martin E  McGee"},"object":{"type":"operator","id":"0092147","name":"Gunz Energy Inc"},"validFrom":"2008-07-02","validTo":"2008-11-30","current":false,"derived":true,"evidenceMineId":"4609291","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0092147|2008-07-02|C11979|2008-07-02|85844"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0065023","name":"Regal Enterprises, Inc."},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2008-12-01","validTo":"2009-06-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0065023|2008-12-01|2009-06-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0054469","name":"Patrick  Hopkins"},"object":{"type":"operator","id":"0065023","name":"Regal Enterprises, Inc."},"validFrom":"2008-12-01","validTo":"2006-11-08","current":false,"derived":true,"evidenceMineId":"4609291","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0065023|2008-12-01|0054469|2005-11-01|6981"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0064469","name":"Jeffrey  Hopkins"},"object":{"type":"operator","id":"0065023","name":"Regal Enterprises, Inc."},"validFrom":"2008-12-01","validTo":"2009-06-08","current":false,"derived":true,"evidenceMineId":"4609291","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0065023|2008-12-01|0064469|2006-11-09|8832"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0101586","name":"Blue Ridge Mining, LLC"},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2009-06-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0101586|2009-06-09|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0085855","name":"Dave  O'Brien et al"},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2009-06-09","validTo":"2013-03-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0085855|2009-06-09|2013-03-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085855","name":"Dave  O'Brien et al"},"object":{"type":"operator","id":"0101586","name":"Blue Ridge Mining, LLC"},"validFrom":"2009-06-09","validTo":"2013-03-25","current":false,"derived":true,"evidenceMineId":"4609291","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0101586|2009-06-09|0085855|2009-06-09|13795"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085855","name":"Ed  Carpp et al"},"object":{"type":"operator","id":"0101586","name":"Blue Ridge Mining, LLC"},"validFrom":"2009-06-09","validTo":"2013-03-25","current":false,"derived":true,"evidenceMineId":"4609291","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0101586|2009-06-09|0085855|2009-06-09|13796"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0108221","name":"M  Natarajan"},"object":{"type":"mine","id":"4609291","name":"Mine No 1"},"validFrom":"2013-03-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0108221|2013-03-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0108221","name":"M  Natarajan"},"object":{"type":"operator","id":"0101586","name":"Blue Ridge Mining, LLC"},"validFrom":"2013-03-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"4609291","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609291|0101586|2009-06-09|0108221|2013-03-26|19471"}}],"coverage":{"historyRecords":6,"edgeCount":14,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4609291","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"}}