{"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":"0501149","name":"Farmer Girl"},"operator":{"type":"operator","id":"0087324","name":"Energy Fuels Resources"},"controller":{"type":"controller","id":"0073491","name":"Energy Fuels Incorporated"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03925","name":"Durfee Mining Company"},"object":{"type":"mine","id":"0501149","name":"Farmer Girl"},"validFrom":"1950-01-01","validTo":"1983-05-09","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501149|L03925|1950-01-01|1983-05-09"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03145","name":"Durfee Fred"},"object":{"type":"mine","id":"0501149","name":"Farmer Girl"},"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":"0501149|M03145|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03145","name":"Durfee Fred"},"object":{"type":"operator","id":"L03925","name":"Durfee Mining Company"},"validFrom":"1950-01-01","validTo":"1983-05-09","current":false,"derived":true,"evidenceMineId":"0501149","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501149|L03925|1950-01-01|M03145|1950-01-01|128034"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06210","name":"Jack A Sage Mining"},"object":{"type":"mine","id":"0501149","name":"Farmer Girl"},"validFrom":"1983-05-10","validTo":"2006-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501149|L06210|1983-05-10|2006-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04976","name":"Sage Jack A"},"object":{"type":"mine","id":"0501149","name":"Farmer Girl"},"validFrom":"1983-05-10","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501149|M04976|1983-05-10|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04976","name":"Sage Jack A"},"object":{"type":"operator","id":"L06210","name":"Jack A Sage Mining"},"validFrom":"1983-05-10","validTo":"2006-09-30","current":false,"derived":true,"evidenceMineId":"0501149","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501149|L06210|1983-05-10|M04976|1983-05-10|133370"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0073491","name":"Energy Fuels Incorporated"},"object":{"type":"mine","id":"0501149","name":"Farmer Girl"},"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":"0501149|0073491|2006-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0087324","name":"Energy Fuels Resources"},"object":{"type":"mine","id":"0501149","name":"Farmer Girl"},"validFrom":"2006-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501149|0087324|2006-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0073491","name":"Energy Fuels Incorporated"},"object":{"type":"operator","id":"0087324","name":"Energy Fuels Resources"},"validFrom":"2006-10-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0501149","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501149|0087324|2006-10-01|0073491|2006-07-01|11432"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0501149","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"}}