{"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":"0503745","name":"Silver Gem Mine"},"operator":{"type":"operator","id":"L07561","name":"Dorado Mining Company Inc"},"controller":{"type":"controller","id":"M06008","name":"A W  Wadsworth"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03872","name":"William W  Reed"},"object":{"type":"mine","id":"0503745","name":"Silver Gem Mine"},"validFrom":"1979-09-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503745|M03872|1979-09-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04793","name":"Silver State Mining Corp"},"object":{"type":"mine","id":"0503745","name":"Silver Gem Mine"},"validFrom":"1981-10-01","validTo":"1985-03-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503745|L04793|1981-10-01|1985-03-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03872","name":"William W  Reed"},"object":{"type":"operator","id":"L04793","name":"Silver State Mining Corp"},"validFrom":"1981-10-01","validTo":"1985-03-10","current":false,"derived":true,"evidenceMineId":"0503745","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503745|L04793|1981-10-01|M03872|1979-09-01|130323"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06008","name":"A W  Wadsworth"},"object":{"type":"mine","id":"0503745","name":"Silver Gem Mine"},"validFrom":"1984-11-14","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503745|M06008|1984-11-14|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L07561","name":"Dorado Mining Company Inc"},"object":{"type":"mine","id":"0503745","name":"Silver Gem Mine"},"validFrom":"1985-03-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503745|L07561|1985-03-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06008","name":"A W  Wadsworth"},"object":{"type":"operator","id":"L07561","name":"Dorado Mining Company Inc"},"validFrom":"1985-03-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"0503745","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0503745|L07561|1985-03-11|M06008|1984-11-14|135963"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0503745","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"}}