{"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":"1001604","name":"Queen Extension Mine"},"operator":{"type":"operator","id":"L05960","name":"Silver Strike Mining Company"},"controller":{"type":"controller","id":"M04785","name":"Fitz Roy T-John R Thornton"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04785","name":"Fitz Roy T-John R Thornton Et Al"},"object":{"type":"mine","id":"1001604","name":"Queen Extension Mine"},"validFrom":"1980-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1001604|M04785|1980-11-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L05960","name":"Silver Strike Mining Company"},"object":{"type":"mine","id":"1001604","name":"Queen Extension Mine"},"validFrom":"1982-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1001604|L05960|1982-12-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04785","name":"Fitz Roy T-John R Thornton Et Al"},"object":{"type":"operator","id":"L05960","name":"Silver Strike Mining Company"},"validFrom":"1982-12-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1001604","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1001604|L05960|1982-12-01|M04785|1980-11-01|132776"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1001604","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"}}