{"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":"2003702","name":"Telsmith #2"},"operator":{"type":"operator","id":"L09027","name":"carr bros and sons"},"controller":{"type":"controller","id":"M07123","name":"John R  Carr Jr"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07123","name":"John R  Carr Jr  et al"},"object":{"type":"mine","id":"2003702","name":"Telsmith #2"},"validFrom":"1984-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003702|M07123|1984-06-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L09027","name":"carr bros and sons"},"object":{"type":"mine","id":"2003702","name":"Telsmith #2"},"validFrom":"2026-03-31","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003702|L09027|2026-03-31|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07123","name":"John R  Carr Jr  et al"},"object":{"type":"operator","id":"L09027","name":"carr bros and sons"},"validFrom":"2026-03-31","validTo":null,"current":true,"derived":true,"evidenceMineId":"2003702","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"2003702|L09027|2026-03-31|M07123|1984-06-01|140146"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"2003702","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"}}