{"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":"0504816","name":"WHIRLWIND MINE"},"operator":{"type":"operator","id":"0200615","name":"EFR Colorado Plateau LLC"},"controller":{"type":"controller","id":"0175160","name":"Energy Fuels Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11844","name":"International Uranium Corp"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"1997-05-10","validTo":"2023-02-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|M11844|1997-05-10|2023-02-12"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0059437","name":"Little Maverick Mining"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2005-04-27","validTo":"2006-12-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0059437|2005-04-27|2006-12-10"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0049489","name":"Ed L  Hopkins et al"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2005-04-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0049489|2005-04-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0049489","name":"Ed L  Hopkins et al"},"object":{"type":"operator","id":"0059437","name":"Little Maverick Mining"},"validFrom":"2005-04-27","validTo":"2006-12-10","current":false,"derived":true,"evidenceMineId":"0504816","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0059437|2005-04-27|0049489|2005-04-27|6192"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0049489","name":"Lee V  Sutherland et al"},"object":{"type":"operator","id":"0059437","name":"Little Maverick Mining"},"validFrom":"2005-04-27","validTo":"2006-12-10","current":false,"derived":true,"evidenceMineId":"0504816","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0059437|2005-04-27|0049489|2005-04-27|6193"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0073491","name":"Energy Fuels Incorporated"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2006-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0073491|2006-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0087324","name":"Energy Fuels Resources"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2006-12-11","validTo":"2012-08-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0087324|2006-12-11|2012-08-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0073491","name":"Energy Fuels Incorporated"},"object":{"type":"operator","id":"0087324","name":"Energy Fuels Resources"},"validFrom":"2006-12-11","validTo":"2012-08-31","current":false,"derived":true,"evidenceMineId":"0504816","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0087324|2006-12-11|0073491|2006-07-01|11435"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15509","name":"Energy Fuels Resources (USA) Inc."},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2012-09-01","validTo":"2025-02-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|L15509|2012-09-01|2025-02-09"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M11844","name":"International Uranium Corp"},"object":{"type":"operator","id":"L15509","name":"Energy Fuels Resources (USA) Inc."},"validFrom":"2012-09-01","validTo":"2023-02-12","current":false,"derived":true,"evidenceMineId":"0504816","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|L15509|2012-09-01|M11844|1997-05-10|152535"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0175160","name":"Energy Fuels Inc"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2023-02-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0175160|2023-02-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0175160","name":"Energy Fuels Inc"},"object":{"type":"operator","id":"L15509","name":"Energy Fuels Resources (USA) Inc."},"validFrom":"2023-02-13","validTo":"2025-02-09","current":false,"derived":true,"evidenceMineId":"0504816","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|L15509|2012-09-01|0175160|2023-02-13|37359"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0200615","name":"EFR Colorado Plateau LLC"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2025-02-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0200615|2025-02-10|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0175160","name":"Energy Fuels Inc"},"object":{"type":"mine","id":"0504816","name":"WHIRLWIND MINE"},"validFrom":"2025-02-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0175160|2025-02-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0175160","name":"Energy Fuels Inc"},"object":{"type":"operator","id":"0200615","name":"EFR Colorado Plateau LLC"},"validFrom":"2025-02-10","validTo":null,"current":true,"derived":true,"evidenceMineId":"0504816","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0504816|0200615|2025-02-10|0175160|2025-02-10|37375"}}],"coverage":{"historyRecords":6,"edgeCount":15,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0504816","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"}}