{"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":"5001707","name":"Arctic Ness Mine"},"operator":{"type":"operator","id":"0184333","name":"Arctic Ness Transport & Excavation"},"controller":{"type":"controller","id":"0170980","name":"Justin R  Ness"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L18417","name":"Harvey Mechanical Company"},"object":{"type":"mine","id":"5001707","name":"Arctic Ness Mine"},"validFrom":"2001-05-01","validTo":"2022-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5001707|L18417|2001-05-01|2022-07-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M14163","name":"Kieth W  Harvey"},"object":{"type":"mine","id":"5001707","name":"Arctic Ness Mine"},"validFrom":"2001-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5001707|M14163|2001-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M14163","name":"Kieth W  Harvey"},"object":{"type":"operator","id":"L18417","name":"Harvey Mechanical Company"},"validFrom":"2001-05-01","validTo":"2022-07-31","current":false,"derived":true,"evidenceMineId":"5001707","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5001707|L18417|2001-05-01|M14163|2001-05-01|157597"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0184333","name":"Arctic Ness Transport & Excavation"},"object":{"type":"mine","id":"5001707","name":"Arctic Ness Mine"},"validFrom":"2022-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5001707|0184333|2022-08-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0170980","name":"Justin R  Ness"},"object":{"type":"mine","id":"5001707","name":"Arctic Ness Mine"},"validFrom":"2022-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5001707|0170980|2022-08-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0170980","name":"Justin R  Ness"},"object":{"type":"operator","id":"0184333","name":"Arctic Ness Transport & Excavation"},"validFrom":"2022-08-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"5001707","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"5001707|0184333|2022-08-01|0170980|2022-08-01|36192"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"5001707","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"}}