{"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":"0404269","name":"Upper Spanish Mine"},"operator":{"type":"operator","id":"L04511","name":"Robinson Enterprises Inc"},"controller":{"type":"controller","id":"M03637","name":"Lowell  Robinson"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L02408","name":"Zane Hunt Mining Company"},"object":{"type":"mine","id":"0404269","name":"Upper Spanish Mine"},"validFrom":"1978-03-09","validTo":"1980-08-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404269|L02408|1978-03-09|1980-08-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02103","name":"Ostler Josie A Et Al"},"object":{"type":"mine","id":"0404269","name":"Upper Spanish Mine"},"validFrom":"1978-03-09","validTo":"1980-08-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404269|M02103|1978-03-09|1980-08-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02103","name":"Ostler Josie A Et Al"},"object":{"type":"operator","id":"L02408","name":"Zane Hunt Mining Company"},"validFrom":"1978-03-09","validTo":"1980-08-18","current":false,"derived":true,"evidenceMineId":"0404269","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404269|L02408|1978-03-09|M02103|1978-03-09|123702"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L04511","name":"Robinson Enterprises Inc"},"object":{"type":"mine","id":"0404269","name":"Upper Spanish Mine"},"validFrom":"1980-08-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404269|L04511|1980-08-19|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M03637","name":"Lowell  Robinson"},"object":{"type":"mine","id":"0404269","name":"Upper Spanish Mine"},"validFrom":"1980-08-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404269|M03637|1980-08-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M03637","name":"Lowell  Robinson"},"object":{"type":"operator","id":"L04511","name":"Robinson Enterprises Inc"},"validFrom":"1980-08-19","validTo":null,"current":true,"derived":true,"evidenceMineId":"0404269","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0404269|L04511|1980-08-19|M03637|1980-08-19|129546"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0404269","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"}}