{"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":"0404787","name":"Blue Eagle Lode Mine"},"operator":{"type":"operator","id":"0164393","name":"Blue Eagle Lode Mining Co."},"controller":{"type":"controller","id":"0148681","name":"John C  Burton"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08585","name":"Co Ca Mines Inc"},"object":{"type":"mine","id":"0404787","name":"Blue Eagle Lode Mine"},"validFrom":"1986-01-01","validTo":"2019-06-12","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|L08585|1986-01-01|2019-06-12"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06807","name":"Compass Mining Ltd  et al"},"object":{"type":"mine","id":"0404787","name":"Blue Eagle Lode Mine"},"validFrom":"1986-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|M06807|1986-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06807","name":"Compass Mining Ltd  et al"},"object":{"type":"operator","id":"L08585","name":"Co Ca Mines Inc"},"validFrom":"1986-01-01","validTo":"2019-06-12","current":false,"derived":true,"evidenceMineId":"0404787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|L08585|1986-01-01|M06807|1986-01-01|139379"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06807","name":"Hecla Mining Co  et al"},"object":{"type":"operator","id":"L08585","name":"Co Ca Mines Inc"},"validFrom":"1986-01-01","validTo":"2019-06-12","current":false,"derived":true,"evidenceMineId":"0404787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|L08585|1986-01-01|M06807|1986-01-01|139380"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06807","name":"Middle Buttes Partners Limited  et al"},"object":{"type":"operator","id":"L08585","name":"Co Ca Mines Inc"},"validFrom":"1986-01-01","validTo":"2019-06-12","current":false,"derived":true,"evidenceMineId":"0404787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|L08585|1986-01-01|M06807|1986-01-01|139381"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0164393","name":"Blue Eagle Lode Mining Co."},"object":{"type":"mine","id":"0404787","name":"Blue Eagle Lode Mine"},"validFrom":"2019-06-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|0164393|2019-06-13|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0148681","name":"John C  Burton"},"object":{"type":"mine","id":"0404787","name":"Blue Eagle Lode Mine"},"validFrom":"2019-06-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|0148681|2019-06-13|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0148681","name":"John C  Burton"},"object":{"type":"operator","id":"0164393","name":"Blue Eagle Lode Mining Co."},"validFrom":"2019-06-13","validTo":null,"current":true,"derived":true,"evidenceMineId":"0404787","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404787|0164393|2019-06-13|0148681|2019-06-13|30417"}}],"coverage":{"historyRecords":4,"edgeCount":8,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0404787","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"}}