{"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":"2003023","name":"7913 Plant"},"operator":{"type":"operator","id":"L01209","name":"Rieth-Riley Construction Co., Inc."},"controller":{"type":"controller","id":"0180601","name":"RR Holdco, Inc."},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00880","name":"Rieth-Riley Construction Company Inc"},"object":{"type":"mine","id":"2003023","name":"7913 Plant"},"validFrom":"1950-01-01","validTo":"2025-01-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|M00880|1950-01-01|2025-01-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06512","name":"Thomas R  Irwin  et al"},"object":{"type":"mine","id":"2003023","name":"7913 Plant"},"validFrom":"1984-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|M06512|1984-06-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08184","name":"H & D Inc"},"object":{"type":"mine","id":"2003023","name":"7913 Plant"},"validFrom":"1997-01-01","validTo":"2005-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|L08184|1997-01-01|2005-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06512","name":"Thomas R  Irwin  et al"},"object":{"type":"operator","id":"L08184","name":"H & D Inc"},"validFrom":"1997-01-01","validTo":"2005-03-31","current":false,"derived":true,"evidenceMineId":"2003023","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|L08184|1997-01-01|M06512|1984-06-01|138689"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01209","name":"Rieth-Riley Construction Co., Inc."},"object":{"type":"mine","id":"2003023","name":"7913 Plant"},"validFrom":"2005-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|L01209|2005-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00880","name":"Rieth-Riley Construction Company Inc"},"object":{"type":"operator","id":"L01209","name":"Rieth-Riley Construction Co., Inc."},"validFrom":"2005-04-01","validTo":"2025-01-30","current":false,"derived":true,"evidenceMineId":"2003023","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|L01209|2005-04-01|M00880|1950-01-01|115614"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0180601","name":"RR Holdco, Inc."},"object":{"type":"mine","id":"2003023","name":"7913 Plant"},"validFrom":"2025-01-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|0180601|2025-01-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0180601","name":"RR Holdco, Inc."},"object":{"type":"operator","id":"L01209","name":"Rieth-Riley Construction Co., Inc."},"validFrom":"2025-01-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"2003023","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003023|L01209|2005-04-01|0180601|2025-01-31|38653"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2003023","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"}}