{"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":"3503927","name":"Panther Pit"},"operator":{"type":"operator","id":"0158533","name":"Burl Brim Excavation"},"controller":{"type":"controller","id":"0068473","name":"Schuyler L  Van Wart"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0142661","name":"Burl John  Brim"},"object":{"type":"mine","id":"3503927","name":"Panther Pit"},"validFrom":"2018-07-18","validTo":"2020-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503927|0142661|2018-07-18|2020-03-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0068473","name":"Schuyler L  Van Wart"},"object":{"type":"mine","id":"3503927","name":"Panther Pit"},"validFrom":"2020-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503927|0068473|2020-04-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0158533","name":"Burl Brim Excavation"},"object":{"type":"mine","id":"3503927","name":"Panther Pit"},"validFrom":"2022-01-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503927|0158533|2022-01-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0068473","name":"Schuyler L  Van Wart"},"object":{"type":"operator","id":"0158533","name":"Burl Brim Excavation"},"validFrom":"2022-01-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"3503927","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503927|0158533|2022-01-26|0068473|2020-04-01|9636"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0142661","name":"Burl John  Brim"},"object":{"type":"operator","id":"0158533","name":"Burl Brim Excavation"},"validFrom":"2022-01-26","validTo":"2020-03-31","current":false,"derived":true,"evidenceMineId":"3503927","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503927|0158533|2022-01-26|0142661|2018-07-18|28934"}}],"coverage":{"historyRecords":2,"edgeCount":5,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3503927","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"}}