{"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":"2402333","name":"Rochester Mill"},"operator":{"type":"operator","id":"0116865","name":"Snowy Mountain Holdings Inc"},"controller":{"type":"controller","id":"M03242","name":"Delaney Robert L"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0051433","name":"Independent Milling LLC"},"object":{"type":"mine","id":"2402333","name":"Rochester Mill"},"validFrom":"2003-07-09","validTo":"2011-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402333|0051433|2003-07-09|2011-07-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041979","name":"Charles D  Kirkham et al"},"object":{"type":"mine","id":"2402333","name":"Rochester Mill"},"validFrom":"2003-07-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402333|0041979|2003-07-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041979","name":"Charles D  Kirkham et al"},"object":{"type":"operator","id":"0051433","name":"Independent Milling LLC"},"validFrom":"2003-07-09","validTo":"2011-07-25","current":false,"derived":true,"evidenceMineId":"2402333","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402333|0051433|2003-07-09|0041979|2003-07-09|3402"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041979","name":"Burtis D  Fayram et al"},"object":{"type":"operator","id":"0051433","name":"Independent Milling LLC"},"validFrom":"2003-07-09","validTo":"2011-07-25","current":false,"derived":true,"evidenceMineId":"2402333","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402333|0051433|2003-07-09|0041979|2003-07-09|3403"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03242","name":"Delaney Robert L"},"object":{"type":"mine","id":"2402333","name":"Rochester Mill"},"validFrom":"2011-02-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402333|M03242|2011-02-09|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0116865","name":"Snowy Mountain Holdings Inc"},"object":{"type":"mine","id":"2402333","name":"Rochester Mill"},"validFrom":"2011-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402333|0116865|2011-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03242","name":"Delaney Robert L"},"object":{"type":"operator","id":"0116865","name":"Snowy Mountain Holdings Inc"},"validFrom":"2011-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"2402333","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2402333|0116865|2011-07-26|M03242|2011-02-09|128564"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2402333","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"}}