{"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":"4202241","name":"Lila Canyon"},"operator":{"type":"operator","id":"0173613","name":"Emery County Coal Resources, Inc."},"controller":{"type":"controller","id":"0157801","name":"ACNR Holdings, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24505","name":"Utah American Energy, Inc."},"object":{"type":"mine","id":"4202241","name":"Lila Canyon"},"validFrom":"1999-02-24","validTo":"2020-09-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4202241|P24505|1999-02-24|2020-09-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13408","name":"Robert E  Murray"},"object":{"type":"mine","id":"4202241","name":"Lila Canyon"},"validFrom":"1999-02-24","validTo":"2020-09-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4202241|C13408|1999-02-24|2020-09-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13408","name":"Robert E  Murray"},"object":{"type":"operator","id":"P24505","name":"Utah American Energy, Inc."},"validFrom":"1999-02-24","validTo":"2020-09-16","current":false,"derived":true,"evidenceMineId":"4202241","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4202241|P24505|1999-02-24|C13408|1999-02-24|89572"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0157801","name":"ACNR Holdings, Inc"},"object":{"type":"mine","id":"4202241","name":"Lila Canyon"},"validFrom":"2020-09-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4202241|0157801|2020-09-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0157801","name":"ACNR Holdings, Inc"},"object":{"type":"operator","id":"P24505","name":"Utah American Energy, Inc."},"validFrom":"2020-09-17","validTo":"2020-09-16","current":false,"derived":true,"evidenceMineId":"4202241","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4202241|P24505|1999-02-24|0157801|2020-09-17|32654"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0173613","name":"Emery County Coal Resources, Inc."},"object":{"type":"mine","id":"4202241","name":"Lila Canyon"},"validFrom":"2020-09-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4202241|0173613|2020-09-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0157801","name":"ACNR Holdings, Inc"},"object":{"type":"operator","id":"0173613","name":"Emery County Coal Resources, Inc."},"validFrom":"2020-09-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"4202241","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4202241|0173613|2020-09-17|0157801|2020-09-17|32655"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":1,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4202241","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"}}