{"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":"3200904","name":"Nordberg Omnicone"},"operator":{"type":"operator","id":"0127054","name":"Westby Rock"},"controller":{"type":"controller","id":"0108125","name":"William Mike  Reynolds"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0053431","name":"Chad  Monson"},"object":{"type":"mine","id":"3200904","name":"Nordberg Omnicone"},"validFrom":"2008-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200904|0053431|2008-07-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0096446","name":"Monson Corporation"},"object":{"type":"mine","id":"3200904","name":"Nordberg Omnicone"},"validFrom":"2011-07-20","validTo":"2013-03-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200904|0096446|2011-07-20|2013-03-06"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0053431","name":"Chad  Monson"},"object":{"type":"operator","id":"0096446","name":"Monson Corporation"},"validFrom":"2011-07-20","validTo":"2013-03-06","current":false,"derived":true,"evidenceMineId":"3200904","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200904|0096446|2011-07-20|0053431|2008-07-01|6825"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0127054","name":"Westby Rock"},"object":{"type":"mine","id":"3200904","name":"Nordberg Omnicone"},"validFrom":"2013-03-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200904|0127054|2013-03-07|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0108125","name":"William Mike  Reynolds"},"object":{"type":"mine","id":"3200904","name":"Nordberg Omnicone"},"validFrom":"2013-03-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200904|0108125|2013-03-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0108125","name":"William Mike  Reynolds"},"object":{"type":"operator","id":"0127054","name":"Westby Rock"},"validFrom":"2013-03-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"3200904","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3200904|0127054|2013-03-07|0108125|2013-03-07|19452"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3200904","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"}}