{"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":"0503780","name":"West Sunday"},"operator":{"type":"operator","id":"0163433","name":"Pinon Ridge Mining LLC"},"controller":{"type":"controller","id":"0147541","name":"George  Glasier"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00442","name":"Union Carbide Corp"},"object":{"type":"mine","id":"0503780","name":"West Sunday"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|M00442|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07049","name":"Tomcat Mining Corporation"},"object":{"type":"mine","id":"0503780","name":"West Sunday"},"validFrom":"1982-06-01","validTo":"2006-12-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|L07049|1982-06-01|2006-12-03"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00442","name":"Union Carbide Corp"},"object":{"type":"operator","id":"L07049","name":"Tomcat Mining Corporation"},"validFrom":"1982-06-01","validTo":"2006-12-03","current":false,"derived":true,"evidenceMineId":"0503780","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|L07049|1982-06-01|M00442|1950-01-01|110975"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M11844","name":"International Uranium Corp"},"object":{"type":"mine","id":"0503780","name":"West Sunday"},"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":"0503780|M11844|1997-05-10|2023-02-12"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15509","name":"Energy Fuels Resources (USA) Inc."},"object":{"type":"mine","id":"0503780","name":"West Sunday"},"validFrom":"2006-12-04","validTo":"2019-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|L15509|2006-12-04|2019-04-29"}},{"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":"2006-12-04","validTo":"2019-04-29","current":false,"derived":true,"evidenceMineId":"0503780","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|L15509|2006-12-04|M11844|1997-05-10|152534"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0147541","name":"George  Glasier"},"object":{"type":"mine","id":"0503780","name":"West Sunday"},"validFrom":"2019-04-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|0147541|2019-04-29|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0163433","name":"Pinon Ridge Mining LLC"},"object":{"type":"mine","id":"0503780","name":"West Sunday"},"validFrom":"2019-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|0163433|2019-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147541","name":"George  Glasier"},"object":{"type":"operator","id":"0163433","name":"Pinon Ridge Mining LLC"},"validFrom":"2019-04-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"0503780","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|0163433|2019-04-30|0147541|2019-04-29|30231"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0175160","name":"Energy Fuels Inc"},"object":{"type":"mine","id":"0503780","name":"West Sunday"},"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":"0503780|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":"2019-04-29","current":false,"derived":true,"evidenceMineId":"0503780","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503780|L15509|2006-12-04|0175160|2023-02-13|37358"}}],"coverage":{"historyRecords":4,"edgeCount":11,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0503780","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"}}