{"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":"2026-10-17T05:35:58.500035+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":"2401467","name":"Troy Mine"},"operator":{"type":"operator","id":"L17328","name":"Troy Mine Inc."},"controller":{"type":"controller","id":"M13254","name":"Revett Silver Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00017","name":"Asarco Inc"},"object":{"type":"mine","id":"2401467","name":"Troy Mine"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401467|M00017|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00081","name":"Asarco Inc"},"object":{"type":"mine","id":"2401467","name":"Troy Mine"},"validFrom":"1979-01-01","validTo":"1999-10-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401467|L00081|1979-01-01|1999-10-13"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00017","name":"Asarco Inc"},"object":{"type":"operator","id":"L00081","name":"Asarco Inc"},"validFrom":"1979-01-01","validTo":"1999-10-13","current":false,"derived":true,"evidenceMineId":"2401467","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401467|L00081|1979-01-01|M00017|1950-01-01|101486"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L17328","name":"Troy Mine Inc."},"object":{"type":"mine","id":"2401467","name":"Troy Mine"},"validFrom":"1999-10-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401467|L17328|1999-10-14|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M13254","name":"Revett Silver Company"},"object":{"type":"mine","id":"2401467","name":"Troy Mine"},"validFrom":"1999-10-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401467|M13254|1999-10-14|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M13254","name":"Revett Silver Company"},"object":{"type":"operator","id":"L17328","name":"Troy Mine Inc."},"validFrom":"1999-10-14","validTo":null,"current":true,"derived":true,"evidenceMineId":"2401467","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"2401467|L17328|1999-10-14|M13254|1999-10-14|155898"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2401467","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}