{"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":"3609698","name":"Overland Conveyor"},"operator":{"type":"operator","id":"0086924","name":"Coresco LLC"},"controller":{"type":"controller","id":"0111561","name":"Mepco Intermediate Holdings, LLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0073171","name":"James L  Laurita Jr  et al"},"object":{"type":"mine","id":"3609698","name":"Overland Conveyor"},"validFrom":"2008-02-26","validTo":"2013-11-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609698|0073171|2008-02-26|2013-11-09"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0086924","name":"Coresco LLC"},"object":{"type":"mine","id":"3609698","name":"Overland Conveyor"},"validFrom":"2009-01-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609698|0086924|2009-01-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0073171","name":"James L  Laurita Jr  et al"},"object":{"type":"operator","id":"0086924","name":"Coresco LLC"},"validFrom":"2009-01-29","validTo":"2013-11-09","current":false,"derived":true,"evidenceMineId":"3609698","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609698|0086924|2009-01-29|0073171|2008-02-26|11357"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0073171","name":"GenPower Holdings LP  et al"},"object":{"type":"operator","id":"0086924","name":"Coresco LLC"},"validFrom":"2009-01-29","validTo":"2013-11-09","current":false,"derived":true,"evidenceMineId":"3609698","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609698|0086924|2009-01-29|0073171|2008-02-26|11358"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0111561","name":"Mepco Intermediate Holdings, LLC"},"object":{"type":"mine","id":"3609698","name":"Overland Conveyor"},"validFrom":"2013-11-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609698|0111561|2013-11-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0111561","name":"Mepco Intermediate Holdings, LLC"},"object":{"type":"operator","id":"0086924","name":"Coresco LLC"},"validFrom":"2013-11-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609698","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609698|0086924|2009-01-29|0111561|2013-11-10|20490"}}],"coverage":{"historyRecords":3,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609698","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"}}