{"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":"4701498","name":"WIMMER GRANITE & SUPPLY, INC."},"operator":{"type":"operator","id":"L08735","name":"Wimmer Granite & Supply Inc"},"controller":{"type":"controller","id":"M06913","name":"Joan  Wimmer"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08734","name":"Carl Wimmer Granite"},"object":{"type":"mine","id":"4701498","name":"WIMMER GRANITE & SUPPLY, INC."},"validFrom":"1950-01-01","validTo":"1985-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701498|L08734|1950-01-01|1985-03-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06912","name":"Carl  Wimmer"},"object":{"type":"mine","id":"4701498","name":"WIMMER GRANITE & SUPPLY, INC."},"validFrom":"1950-01-01","validTo":"1985-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701498|M06912|1950-01-01|1985-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06912","name":"Carl  Wimmer"},"object":{"type":"operator","id":"L08734","name":"Carl Wimmer Granite"},"validFrom":"1950-01-01","validTo":"1985-03-31","current":false,"derived":true,"evidenceMineId":"4701498","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701498|L08734|1950-01-01|M06912|1950-01-01|139616"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L08735","name":"Wimmer Granite & Supply Inc"},"object":{"type":"mine","id":"4701498","name":"WIMMER GRANITE & SUPPLY, INC."},"validFrom":"1985-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701498|L08735|1985-04-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M06913","name":"Joan  Wimmer"},"object":{"type":"mine","id":"4701498","name":"WIMMER GRANITE & SUPPLY, INC."},"validFrom":"1985-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701498|M06913|1985-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M06913","name":"Joan  Wimmer"},"object":{"type":"operator","id":"L08735","name":"Wimmer Granite & Supply Inc"},"validFrom":"1985-04-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"4701498","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4701498|L08735|1985-04-01|M06913|1985-04-01|139617"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4701498","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"}}