{"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":"1518642","name":"Beaver Gap"},"operator":{"type":"operator","id":"P22063","name":"Ember Contracting Inc"},"controller":{"type":"controller","id":"C13803","name":"Randy  Gilkerson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13803","name":"Randy  Gilkerson et al"},"object":{"type":"mine","id":"1518642","name":"Beaver Gap"},"validFrom":"1992-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518642|C13803|1992-09-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14600","name":"Yvonne  Yonts et al"},"object":{"type":"mine","id":"1518642","name":"Beaver Gap"},"validFrom":"1997-01-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518642|C14600|1997-01-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23679","name":"Straight Fork Mining Inc"},"object":{"type":"mine","id":"1518642","name":"Beaver Gap"},"validFrom":"2003-07-02","validTo":"2005-07-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518642|P23679|2003-07-02|2005-07-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14600","name":"Yvonne  Yonts et al"},"object":{"type":"operator","id":"P23679","name":"Straight Fork Mining Inc"},"validFrom":"2003-07-02","validTo":"2005-07-04","current":false,"derived":true,"evidenceMineId":"1518642","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518642|P23679|2003-07-02|C14600|1997-01-30|93368"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22063","name":"Ember Contracting Inc"},"object":{"type":"mine","id":"1518642","name":"Beaver Gap"},"validFrom":"2005-07-05","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518642|P22063|2005-07-05|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13803","name":"Randy  Gilkerson et al"},"object":{"type":"operator","id":"P22063","name":"Ember Contracting Inc"},"validFrom":"2005-07-05","validTo":null,"current":true,"derived":true,"evidenceMineId":"1518642","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518642|P22063|2005-07-05|C13803|1992-09-01|91204"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1518642","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"}}