{"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":"1103167","name":"Plant 1"},"operator":{"type":"operator","id":"0089004","name":"Rubloff Excavation, LLC"},"controller":{"type":"controller","id":"0060669","name":"Ron E  Swenson; Mark A  Robinson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0072443","name":"Rock River Stone LLC"},"object":{"type":"mine","id":"1103167","name":"Plant 1"},"validFrom":"2006-06-05","validTo":"2007-12-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0072443|2006-06-05|2007-12-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0060669","name":"Mark A  Robinson et al"},"object":{"type":"mine","id":"1103167","name":"Plant 1"},"validFrom":"2006-06-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0060669|2006-06-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0060669","name":"Mark A  Robinson et al"},"object":{"type":"operator","id":"0072443","name":"Rock River Stone LLC"},"validFrom":"2006-06-05","validTo":"2007-12-31","current":false,"derived":true,"evidenceMineId":"1103167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0072443|2006-06-05|0060669|2006-06-05|8082"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0060669","name":"Ron E  Swenson et al"},"object":{"type":"operator","id":"0072443","name":"Rock River Stone LLC"},"validFrom":"2006-06-05","validTo":"2007-12-31","current":false,"derived":true,"evidenceMineId":"1103167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0072443|2006-06-05|0060669|2006-06-05|8083"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0089004","name":"Rubloff Excavation, LLC"},"object":{"type":"mine","id":"1103167","name":"Plant 1"},"validFrom":"2008-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0089004|2008-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0060669","name":"Mark A  Robinson et al"},"object":{"type":"mine","id":"1103167","name":"Plant 1"},"validFrom":"2008-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0060669|2008-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0060669","name":"Mark A  Robinson et al"},"object":{"type":"operator","id":"0089004","name":"Rubloff Excavation, LLC"},"validFrom":"2008-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1103167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0089004|2008-01-01|0060669|2008-01-01|8084"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0060669","name":"Ron E  Swenson et al"},"object":{"type":"operator","id":"0089004","name":"Rubloff Excavation, LLC"},"validFrom":"2008-01-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1103167","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103167|0089004|2008-01-01|0060669|2008-01-01|8085"}}],"coverage":{"historyRecords":4,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1103167","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"}}