{"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":"4503836","name":"Stampede Pass"},"operator":{"type":"operator","id":"0196513","name":"MSK Mining"},"controller":{"type":"controller","id":"0185723","name":"Keith  LaFountain"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0186973","name":"GCX LLC"},"object":{"type":"mine","id":"4503836","name":"Stampede Pass"},"validFrom":"2022-12-20","validTo":"2024-06-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503836|0186973|2022-12-20|2024-06-25"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0174340","name":"Keith  LaFountain et al"},"object":{"type":"mine","id":"4503836","name":"Stampede Pass"},"validFrom":"2022-12-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503836|0174340|2022-12-20|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0174340","name":"Keith  LaFountain et al"},"object":{"type":"operator","id":"0186973","name":"GCX LLC"},"validFrom":"2022-12-20","validTo":"2024-06-25","current":false,"derived":true,"evidenceMineId":"4503836","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503836|0186973|2022-12-20|0174340|2022-12-20|37094"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0174340","name":"Stephen  Halverson et al"},"object":{"type":"operator","id":"0186973","name":"GCX LLC"},"validFrom":"2022-12-20","validTo":"2024-06-25","current":false,"derived":true,"evidenceMineId":"4503836","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503836|0186973|2022-12-20|0174340|2022-12-20|37095"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0196513","name":"MSK Mining"},"object":{"type":"mine","id":"4503836","name":"Stampede Pass"},"validFrom":"2024-06-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503836|0196513|2024-06-26|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0185723","name":"Keith  LaFountain"},"object":{"type":"mine","id":"4503836","name":"Stampede Pass"},"validFrom":"2024-06-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503836|0185723|2024-06-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0185723","name":"Keith  LaFountain"},"object":{"type":"operator","id":"0196513","name":"MSK Mining"},"validFrom":"2024-06-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"4503836","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4503836|0196513|2024-06-26|0185723|2024-06-26|39617"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4503836","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"}}