{"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":"4801698","name":"Crusher 2"},"operator":{"type":"operator","id":"L06685","name":"Croell, Inc."},"controller":{"type":"controller","id":"0126881","name":"Kurt  Croell"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05324","name":"Roger  Croell"},"object":{"type":"mine","id":"4801698","name":"Crusher 2"},"validFrom":"1950-01-01","validTo":"2013-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|M05324|1950-01-01|2013-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12307","name":"Roger  Hollingsworth"},"object":{"type":"mine","id":"4801698","name":"Crusher 2"},"validFrom":"1998-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|M12307|1998-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L16109","name":"Platte County Concrete & Stone"},"object":{"type":"mine","id":"4801698","name":"Crusher 2"},"validFrom":"2006-07-18","validTo":"2008-03-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|L16109|2006-07-18|2008-03-20"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12307","name":"Roger  Hollingsworth"},"object":{"type":"operator","id":"L16109","name":"Platte County Concrete & Stone"},"validFrom":"2006-07-18","validTo":"2008-03-20","current":false,"derived":true,"evidenceMineId":"4801698","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|L16109|2006-07-18|M12307|1998-10-01|153485"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06685","name":"Croell, Inc."},"object":{"type":"mine","id":"4801698","name":"Crusher 2"},"validFrom":"2008-03-21","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|L06685|2008-03-21|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05324","name":"Roger  Croell"},"object":{"type":"operator","id":"L06685","name":"Croell, Inc."},"validFrom":"2008-03-21","validTo":"2013-12-31","current":false,"derived":true,"evidenceMineId":"4801698","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|L06685|2008-03-21|M05324|1950-01-01|134254"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0126881","name":"Kurt  Croell"},"object":{"type":"mine","id":"4801698","name":"Crusher 2"},"validFrom":"2014-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|0126881|2014-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0126881","name":"Kurt  Croell"},"object":{"type":"operator","id":"L06685","name":"Croell, Inc."},"validFrom":"2014-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801698","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4801698|L06685|2008-03-21|0126881|2014-01-01|24652"}}],"coverage":{"historyRecords":3,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4801698","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"}}