{"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":"2601884","name":"Santa Fe Mine"},"operator":{"type":"operator","id":"L13069","name":"Corona Gold Inc"},"controller":{"type":"controller","id":"M00540","name":"Homestake Mining Company"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10552","name":"Corona Gold Inc"},"object":{"type":"mine","id":"2601884","name":"Santa Fe Mine"},"validFrom":"1984-04-01","validTo":"1993-01-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601884|L10552|1984-04-01|1993-01-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M08219","name":"Corona Corp"},"object":{"type":"mine","id":"2601884","name":"Santa Fe Mine"},"validFrom":"1984-04-01","validTo":"1993-01-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601884|M08219|1984-04-01|1993-01-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M08219","name":"Corona Corp"},"object":{"type":"operator","id":"L10552","name":"Corona Gold Inc"},"validFrom":"1984-04-01","validTo":"1993-01-14","current":false,"derived":true,"evidenceMineId":"2601884","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601884|L10552|1984-04-01|M08219|1984-04-01|142922"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13069","name":"Corona Gold Inc"},"object":{"type":"mine","id":"2601884","name":"Santa Fe Mine"},"validFrom":"1993-01-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601884|L13069|1993-01-15|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00540","name":"Homestake Mining Company"},"object":{"type":"mine","id":"2601884","name":"Santa Fe Mine"},"validFrom":"1993-01-15","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601884|M00540|1993-01-15|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00540","name":"Homestake Mining Company"},"object":{"type":"operator","id":"L13069","name":"Corona Gold Inc"},"validFrom":"1993-01-15","validTo":null,"current":true,"derived":true,"evidenceMineId":"2601884","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2601884|L13069|1993-01-15|M00540|1993-01-15|112979"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2601884","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"}}