{"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":"3500051","name":"SATELLITE QUARRY"},"operator":{"type":"operator","id":"L03894","name":"Vanaken Rock Products Inc"},"controller":{"type":"controller","id":"M03119","name":"Larry  Vanaken; Gary  Vanaken"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L14716","name":"Essroc Cement"},"object":{"type":"mine","id":"3500051","name":"SATELLITE QUARRY"},"validFrom":"1950-01-01","validTo":"1981-09-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|L14716|1950-01-01|1981-09-01"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00199","name":"Italcementi Spa"},"object":{"type":"mine","id":"3500051","name":"SATELLITE QUARRY"},"validFrom":"1950-01-01","validTo":"2016-10-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|M00199|1950-01-01|2016-10-11"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00199","name":"Italcementi Spa"},"object":{"type":"operator","id":"L14716","name":"Essroc Cement"},"validFrom":"1950-01-01","validTo":"1981-09-01","current":false,"derived":true,"evidenceMineId":"3500051","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|L14716|1950-01-01|M00199|1950-01-01|107216"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03119","name":"Gary  Vanaken et al"},"object":{"type":"mine","id":"3500051","name":"SATELLITE QUARRY"},"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":"3500051|M03119|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L03894","name":"Vanaken Rock Products Inc"},"object":{"type":"mine","id":"3500051","name":"SATELLITE QUARRY"},"validFrom":"1981-09-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|L03894|1981-09-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03119","name":"Gary  Vanaken et al"},"object":{"type":"operator","id":"L03894","name":"Vanaken Rock Products Inc"},"validFrom":"1981-09-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"3500051","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|L03894|1981-09-02|M03119|1950-01-01|127940"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03119","name":"Larry  Vanaken et al"},"object":{"type":"operator","id":"L03894","name":"Vanaken Rock Products Inc"},"validFrom":"1981-09-02","validTo":null,"current":true,"derived":true,"evidenceMineId":"3500051","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|L03894|1981-09-02|M03119|1950-01-01|127941"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"mine","id":"3500051","name":"SATELLITE QUARRY"},"validFrom":"2016-10-12","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|M00004|2016-10-12|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00004","name":"Heidelberg Materials AG"},"object":{"type":"operator","id":"L14716","name":"Essroc Cement"},"validFrom":"2016-10-12","validTo":"1981-09-01","current":false,"derived":true,"evidenceMineId":"3500051","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3500051|L14716|1950-01-01|M00004|2016-10-12|101022"}}],"coverage":{"historyRecords":4,"edgeCount":9,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3500051","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"}}