{"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":"2026-10-17T05:35:58.500035+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":"4801672","name":"Crusher #1"},"operator":{"type":"operator","id":"0171993","name":"Green River Stone & Crushing"},"controller":{"type":"controller","id":"0156881","name":"Rolf E  Nackerud; Jim J  Wise"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0057997","name":"Red Desert Gravel Inc."},"object":{"type":"mine","id":"4801672","name":"Crusher #1"},"validFrom":"2005-03-15","validTo":"2020-07-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4801672|0057997|2005-03-15|2020-07-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0048269","name":"Jim J  Wise"},"object":{"type":"mine","id":"4801672","name":"Crusher #1"},"validFrom":"2005-03-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4801672|0048269|2005-03-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0048269","name":"Jim J  Wise"},"object":{"type":"operator","id":"0057997","name":"Red Desert Gravel Inc."},"validFrom":"2005-03-15","validTo":"2020-07-14","current":false,"derived":true,"evidenceMineId":"4801672","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4801672|0057997|2005-03-15|0048269|2005-03-15|6017"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0171993","name":"Green River Stone & Crushing"},"object":{"type":"mine","id":"4801672","name":"Crusher #1"},"validFrom":"2020-07-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4801672|0171993|2020-07-15|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0156881","name":"Jim J  Wise Et Al"},"object":{"type":"mine","id":"4801672","name":"Crusher #1"},"validFrom":"2020-07-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4801672|0156881|2020-07-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156881","name":"Jim J  Wise Et Al"},"object":{"type":"operator","id":"0171993","name":"Green River Stone & Crushing"},"validFrom":"2020-07-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801672","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4801672|0171993|2020-07-15|0156881|2020-07-15|32509"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156881","name":"Rolf E  Nackerud Et Al"},"object":{"type":"operator","id":"0171993","name":"Green River Stone & Crushing"},"validFrom":"2020-07-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"4801672","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4801672|0171993|2020-07-15|0156881|2020-07-15|32510"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4801672","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}