{"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":"2301770","name":"Madison Mine"},"operator":{"type":"operator","id":"0163453","name":"US Strategic Metals"},"controller":{"type":"controller","id":"0147561","name":"Missouri Cobalt Holdings LLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04064","name":"Anschutz Mining Corp"},"object":{"type":"mine","id":"2301770","name":"Madison Mine"},"validFrom":"1979-01-01","validTo":"2019-04-23","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301770|L04064|1979-01-01|2019-04-23"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03258","name":"Anschutz Corp"},"object":{"type":"mine","id":"2301770","name":"Madison Mine"},"validFrom":"1979-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301770|M03258|1979-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03258","name":"Anschutz Corp"},"object":{"type":"operator","id":"L04064","name":"Anschutz Mining Corp"},"validFrom":"1979-01-01","validTo":"2019-04-23","current":false,"derived":true,"evidenceMineId":"2301770","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301770|L04064|1979-01-01|M03258|1979-01-01|128593"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0163453","name":"US Strategic Metals"},"object":{"type":"mine","id":"2301770","name":"Madison Mine"},"validFrom":"2019-04-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301770|0163453|2019-04-24|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0147561","name":"Missouri Cobalt Holdings LLC"},"object":{"type":"mine","id":"2301770","name":"Madison Mine"},"validFrom":"2019-04-24","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301770|0147561|2019-04-24|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147561","name":"Missouri Cobalt Holdings LLC"},"object":{"type":"operator","id":"0163453","name":"US Strategic Metals"},"validFrom":"2019-04-24","validTo":null,"current":true,"derived":true,"evidenceMineId":"2301770","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2301770|0163453|2019-04-24|0147561|2019-04-24|30232"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2301770","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"}}