{"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":"3003124","name":"LEROY - SELDON"},"operator":{"type":"operator","id":"L01807","name":"Dolomite Products Company Inc"},"controller":{"type":"controller","id":"M01627","name":"John M  Odenbach"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M01627","name":"John M  Odenbach"},"object":{"type":"mine","id":"3003124","name":"LEROY - SELDON"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003124|M01627|1950-01-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M10304","name":"James  Northrup"},"object":{"type":"mine","id":"3003124","name":"LEROY - SELDON"},"validFrom":"1987-07-01","validTo":"1997-08-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003124|M10304|1987-07-01|1997-08-10"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L13512","name":"Northrup Concrete Inc"},"object":{"type":"mine","id":"3003124","name":"LEROY - SELDON"},"validFrom":"1994-05-01","validTo":"1997-08-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003124|L13512|1994-05-01|1997-08-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M10304","name":"James  Northrup"},"object":{"type":"operator","id":"L13512","name":"Northrup Concrete Inc"},"validFrom":"1994-05-01","validTo":"1997-08-10","current":false,"derived":true,"evidenceMineId":"3003124","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003124|L13512|1994-05-01|M10304|1987-07-01|148964"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01807","name":"Dolomite Products Company Inc"},"object":{"type":"mine","id":"3003124","name":"LEROY - SELDON"},"validFrom":"1997-08-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003124|L01807|1997-08-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M01627","name":"John M  Odenbach"},"object":{"type":"operator","id":"L01807","name":"Dolomite Products Company Inc"},"validFrom":"1997-08-11","validTo":null,"current":true,"derived":true,"evidenceMineId":"3003124","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3003124|L01807|1997-08-11|M01627|1950-01-01|119696"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3003124","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"}}