{"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":"2602006","name":"Illipah Mine"},"operator":{"type":"operator","id":"L10828","name":"Alta Gold Company"},"controller":{"type":"controller","id":"M06399","name":"Alta Gold Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06399","name":"Alta Gold Company"},"object":{"type":"mine","id":"2602006","name":"Illipah Mine"},"validFrom":"1985-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2602006|M06399|1985-04-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06668","name":"Echo Bay Mines Ltd"},"object":{"type":"mine","id":"2602006","name":"Illipah Mine"},"validFrom":"1986-11-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2602006|M06668|1986-11-19|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09329","name":"Echo Bay Minerals Company"},"object":{"type":"mine","id":"2602006","name":"Illipah Mine"},"validFrom":"1987-04-01","validTo":"1988-06-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2602006|L09329|1987-04-01|1988-06-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06668","name":"Echo Bay Mines Ltd"},"object":{"type":"operator","id":"L09329","name":"Echo Bay Minerals Company"},"validFrom":"1987-04-01","validTo":"1988-06-30","current":false,"derived":true,"evidenceMineId":"2602006","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2602006|L09329|1987-04-01|M06668|1986-11-19|139052"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10828","name":"Alta Gold Company"},"object":{"type":"mine","id":"2602006","name":"Illipah Mine"},"validFrom":"1988-07-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2602006|L10828|1988-07-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06399","name":"Alta Gold Company"},"object":{"type":"operator","id":"L10828","name":"Alta Gold Company"},"validFrom":"1988-07-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"2602006","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2602006|L10828|1988-07-01|M06399|1985-04-01|138455"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2602006","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"}}