{"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":"3606227","name":"Vosco Strip"},"operator":{"type":"operator","id":"P04714","name":"Bertelle & Sons Coal"},"controller":{"type":"controller","id":"C03891","name":"Bertelle Bruno"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01811","name":"Schafer George"},"object":{"type":"mine","id":"3606227","name":"Vosco Strip"},"validFrom":"1976-05-13","validTo":"1979-06-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606227|C01811|1976-05-13|1979-06-03"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02131","name":"Vosco Inc"},"object":{"type":"mine","id":"3606227","name":"Vosco Strip"},"validFrom":"1976-09-27","validTo":"1979-05-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606227|P02131|1976-09-27|1979-05-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01811","name":"Schafer George"},"object":{"type":"operator","id":"P02131","name":"Vosco Inc"},"validFrom":"1976-09-27","validTo":"1979-05-08","current":false,"derived":true,"evidenceMineId":"3606227","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606227|P02131|1976-09-27|C01811|1976-05-13|56210"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03891","name":"Bertelle Bruno"},"object":{"type":"mine","id":"3606227","name":"Vosco Strip"},"validFrom":"1977-02-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606227|C03891|1977-02-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P04714","name":"Bertelle & Sons Coal"},"object":{"type":"mine","id":"3606227","name":"Vosco Strip"},"validFrom":"1979-05-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606227|P04714|1979-05-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03891","name":"Bertelle Bruno"},"object":{"type":"operator","id":"P04714","name":"Bertelle & Sons Coal"},"validFrom":"1979-05-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"3606227","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3606227|P04714|1979-05-09|C03891|1977-02-01|64159"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3606227","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"}}