{"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":"3402189","name":"General Materials MacArthur Plant"},"operator":{"type":"operator","id":"L03196","name":"General Materials, Inc."},"controller":{"type":"controller","id":"0089653","name":"Kenneth K  Wert"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02574","name":"Larry H  Lemon  et al"},"object":{"type":"mine","id":"3402189","name":"General Materials MacArthur Plant"},"validFrom":"1979-05-01","validTo":"2009-12-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|M02574|1979-05-01|2009-12-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0089653","name":"Kenneth K  Wert"},"object":{"type":"mine","id":"3402189","name":"General Materials MacArthur Plant"},"validFrom":"2009-12-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|0089653|2009-12-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0116521","name":"Lansing Trade Group LLC"},"object":{"type":"mine","id":"3402189","name":"General Materials MacArthur Plant"},"validFrom":"2014-11-18","validTo":"2018-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|0116521|2014-11-18|2018-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0145981","name":"The Andersons, Inc"},"object":{"type":"mine","id":"3402189","name":"General Materials MacArthur Plant"},"validFrom":"2019-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|0145981|2019-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0137013","name":"Titan Lansing, LLC"},"object":{"type":"mine","id":"3402189","name":"General Materials MacArthur Plant"},"validFrom":"2019-02-28","validTo":"2022-04-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|0137013|2019-02-28|2022-04-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0116521","name":"Lansing Trade Group LLC"},"object":{"type":"operator","id":"0137013","name":"Titan Lansing, LLC"},"validFrom":"2019-02-28","validTo":"2018-12-31","current":false,"derived":true,"evidenceMineId":"3402189","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|0137013|2019-02-28|0116521|2014-11-18|22011"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0145981","name":"The Andersons, Inc"},"object":{"type":"operator","id":"0137013","name":"Titan Lansing, LLC"},"validFrom":"2019-02-28","validTo":"2022-04-30","current":false,"derived":true,"evidenceMineId":"3402189","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|0137013|2019-02-28|0145981|2019-01-01|29892"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03196","name":"General Materials, Inc."},"object":{"type":"mine","id":"3402189","name":"General Materials MacArthur Plant"},"validFrom":"2022-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|L03196|2022-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0089653","name":"Kenneth K  Wert"},"object":{"type":"operator","id":"L03196","name":"General Materials, Inc."},"validFrom":"2022-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3402189","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|L03196|2022-05-01|0089653|2009-12-04|14431"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02574","name":"Larry H  Lemon  et al"},"object":{"type":"operator","id":"L03196","name":"General Materials, Inc."},"validFrom":"2022-05-01","validTo":"2009-12-03","current":false,"derived":true,"evidenceMineId":"3402189","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3402189|L03196|2022-05-01|M02574|1979-05-01|126089"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3402189","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"}}