{"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":"3901156","name":"Beilke Pit"},"operator":{"type":"operator","id":"L06170","name":"Beilke Construction"},"controller":{"type":"controller","id":"M04923","name":"Rick  Beilke"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02436","name":"Beilke Albert"},"object":{"type":"mine","id":"3901156","name":"Beilke Pit"},"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":"3901156|M02436|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02957","name":"Albert Beilke"},"object":{"type":"mine","id":"3901156","name":"Beilke Pit"},"validFrom":"1979-01-01","validTo":"1982-08-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901156|L02957|1979-01-01|1982-08-23"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02436","name":"Beilke Albert"},"object":{"type":"operator","id":"L02957","name":"Albert Beilke"},"validFrom":"1979-01-01","validTo":"1982-08-23","current":false,"derived":true,"evidenceMineId":"3901156","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901156|L02957|1979-01-01|M02436|1950-01-01|125444"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L06170","name":"Beilke Construction"},"object":{"type":"mine","id":"3901156","name":"Beilke Pit"},"validFrom":"1982-08-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901156|L06170|1982-08-24|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M04923","name":"Rick  Beilke et al"},"object":{"type":"mine","id":"3901156","name":"Beilke Pit"},"validFrom":"1982-08-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901156|M04923|1982-08-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M04923","name":"Rick  Beilke et al"},"object":{"type":"operator","id":"L06170","name":"Beilke Construction"},"validFrom":"1982-08-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"3901156","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3901156|L06170|1982-08-24|M04923|1982-08-24|133236"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3901156","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"}}