{"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":"3609666","name":"Horning Deep Mine"},"operator":{"type":"operator","id":"P24228","name":"RoxCoal, Inc."},"controller":{"type":"controller","id":"0077457","name":"Quintana Capital Group GP Ltd"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15843","name":"Severstal Resources"},"object":{"type":"mine","id":"3609666","name":"Horning Deep Mine"},"validFrom":"1998-03-06","validTo":"2014-08-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609666|C15843|1998-03-06|2014-08-19"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24228","name":"RoxCoal, Inc."},"object":{"type":"mine","id":"3609666","name":"Horning Deep Mine"},"validFrom":"2008-08-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609666|P24228|2008-08-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15843","name":"Severstal Resources"},"object":{"type":"operator","id":"P24228","name":"RoxCoal, Inc."},"validFrom":"2008-08-29","validTo":"2014-08-19","current":false,"derived":true,"evidenceMineId":"3609666","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609666|P24228|2008-08-29|C15843|1998-03-06|97091"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0077457","name":"Quintana Capital Group GP Ltd et al"},"object":{"type":"mine","id":"3609666","name":"Horning Deep Mine"},"validFrom":"2014-08-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609666|0077457|2014-08-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0077457","name":"Quintana Capital Group GP Ltd et al"},"object":{"type":"operator","id":"P24228","name":"RoxCoal, Inc."},"validFrom":"2014-08-20","validTo":null,"current":true,"derived":true,"evidenceMineId":"3609666","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3609666|P24228|2008-08-29|0077457|2014-08-20|12203"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3609666","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"}}