{"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":"3503575","name":"Plant  #4"},"operator":{"type":"operator","id":"L15996","name":"4 R Equipment LLC"},"controller":{"type":"controller","id":"0136901","name":"Ron  Robinson Jr; Ryan C  Clark"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M12204","name":"Ron  Robinson Jr"},"object":{"type":"mine","id":"3503575","name":"Plant  #4"},"validFrom":"1998-09-01","validTo":"2016-04-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503575|M12204|1998-09-01|2016-04-12"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L15996","name":"4 R Equipment LLC"},"object":{"type":"mine","id":"3503575","name":"Plant  #4"},"validFrom":"2003-04-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503575|L15996|2003-04-29|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M12204","name":"Ron  Robinson Jr"},"object":{"type":"operator","id":"L15996","name":"4 R Equipment LLC"},"validFrom":"2003-04-29","validTo":"2016-04-12","current":false,"derived":true,"evidenceMineId":"3503575","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503575|L15996|2003-04-29|M12204|1998-09-01|153289"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0136901","name":"Ryan C  Clark et al"},"object":{"type":"mine","id":"3503575","name":"Plant  #4"},"validFrom":"2016-04-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503575|0136901|2016-04-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0136901","name":"Ryan C  Clark et al"},"object":{"type":"operator","id":"L15996","name":"4 R Equipment LLC"},"validFrom":"2016-04-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"3503575","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503575|L15996|2003-04-29|0136901|2016-04-13|27587"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0136901","name":"Ron  Robinson Jr et al"},"object":{"type":"operator","id":"L15996","name":"4 R Equipment LLC"},"validFrom":"2016-04-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"3503575","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3503575|L15996|2003-04-29|0136901|2016-04-13|27588"}}],"coverage":{"historyRecords":3,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3503575","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"}}