{"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":"1100081","name":"Kimaterials, Inc."},"operator":{"type":"operator","id":"L02939","name":"Kimaterials"},"controller":{"type":"controller","id":"M01229","name":"St Charles Sand Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01229","name":"St Charles Sand Company"},"object":{"type":"mine","id":"1100081","name":"Kimaterials, Inc."},"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":"1100081|M01229|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01893","name":"Valstad Quarry, Inc."},"object":{"type":"mine","id":"1100081","name":"Kimaterials, Inc."},"validFrom":"1950-01-01","validTo":"2005-04-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100081|L01893|1950-01-01|2005-04-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01705","name":"Harold M  Valstad"},"object":{"type":"mine","id":"1100081","name":"Kimaterials, Inc."},"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":"1100081|M01705|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01705","name":"Harold M  Valstad"},"object":{"type":"operator","id":"L01893","name":"Valstad Quarry, Inc."},"validFrom":"1950-01-01","validTo":"2005-04-07","current":false,"derived":true,"evidenceMineId":"1100081","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100081|L01893|1950-01-01|M01705|1950-01-01|120449"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02939","name":"Kimaterials"},"object":{"type":"mine","id":"1100081","name":"Kimaterials, Inc."},"validFrom":"2005-04-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100081|L02939|2005-04-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01229","name":"St Charles Sand Company"},"object":{"type":"operator","id":"L02939","name":"Kimaterials"},"validFrom":"2005-04-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1100081","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1100081|L02939|2005-04-08|M01229|1950-01-01|117587"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1100081","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"}}