{"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":"3000936","name":"Masick Pit"},"operator":{"type":"operator","id":"L32677","name":"Donald Masick"},"controller":{"type":"controller","id":"M32677","name":"Masick Donald"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L32677","name":"Donald Masick"},"object":{"type":"mine","id":"3000936","name":"Masick 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":"3000936|L32677|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M32677","name":"Masick Donald"},"object":{"type":"mine","id":"3000936","name":"Masick 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":"3000936|M32677|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M32677","name":"Masick Donald"},"object":{"type":"operator","id":"L32677","name":"Donald Masick"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"3000936","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3000936|L32677|1950-01-01|M32677|1950-01-01|161165"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3000936","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"}}