{"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":"0503145","name":"Nauta Ii"},"operator":{"type":"operator","id":"L07598","name":"Nauta"},"controller":{"type":"controller","id":"M06037","name":"Nauta Charles"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01966","name":"Larimer County-Co"},"object":{"type":"mine","id":"0503145","name":"Nauta Ii"},"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":"0503145|M01966|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02230","name":"Larimer County Road & Bridge Department"},"object":{"type":"mine","id":"0503145","name":"Nauta Ii"},"validFrom":"1978-03-09","validTo":"1985-02-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503145|L02230|1978-03-09|1985-02-06"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01966","name":"Larimer County-Co"},"object":{"type":"operator","id":"L02230","name":"Larimer County Road & Bridge Department"},"validFrom":"1978-03-09","validTo":"1985-02-06","current":false,"derived":true,"evidenceMineId":"0503145","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503145|L02230|1978-03-09|M01966|1950-01-01|122407"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07598","name":"Nauta"},"object":{"type":"mine","id":"0503145","name":"Nauta Ii"},"validFrom":"1985-02-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503145|L07598|1985-02-07|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06037","name":"Nauta Charles"},"object":{"type":"mine","id":"0503145","name":"Nauta Ii"},"validFrom":"1985-02-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503145|M06037|1985-02-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06037","name":"Nauta Charles"},"object":{"type":"operator","id":"L07598","name":"Nauta"},"validFrom":"1985-02-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"0503145","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503145|L07598|1985-02-07|M06037|1985-02-07|136084"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0503145","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"}}