{"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":"1601404","name":"Warnerton Pit"},"operator":{"type":"operator","id":"L14166","name":"B & J Backhoe Service Inc."},"controller":{"type":"controller","id":"0108243","name":"James  Creel"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10825","name":"Stanley E  Creel"},"object":{"type":"mine","id":"1601404","name":"Warnerton Pit"},"validFrom":"1995-06-01","validTo":"2013-03-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1601404|M10825|1995-06-01|2013-03-26"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14166","name":"B & J Backhoe Service Inc."},"object":{"type":"mine","id":"1601404","name":"Warnerton Pit"},"validFrom":"2003-02-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1601404|L14166|2003-02-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10825","name":"Stanley E  Creel"},"object":{"type":"operator","id":"L14166","name":"B & J Backhoe Service Inc."},"validFrom":"2003-02-21","validTo":"2013-03-26","current":false,"derived":true,"evidenceMineId":"1601404","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1601404|L14166|2003-02-21|M10825|1995-06-01|150072"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0108243","name":"James  Creel"},"object":{"type":"mine","id":"1601404","name":"Warnerton Pit"},"validFrom":"2013-03-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1601404|0108243|2013-03-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0108243","name":"James  Creel"},"object":{"type":"operator","id":"L14166","name":"B & J Backhoe Service Inc."},"validFrom":"2013-03-27","validTo":null,"current":true,"derived":true,"evidenceMineId":"1601404","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1601404|L14166|2003-02-21|0108243|2013-03-27|19476"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1601404","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"}}