{"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":"0501726","name":"Lp-8"},"operator":{"type":"operator","id":"L11834","name":"Gary Shumway"},"controller":{"type":"controller","id":"M05154","name":"Shumway Gary"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"L00522","name":"Union Carbide Corp"},"object":{"type":"mine","id":"0501726","name":"Lp-8"},"validFrom":"1950-01-01","validTo":"1988-02-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|L00522|1950-01-01|1988-02-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00442","name":"Union Carbide Corp"},"object":{"type":"mine","id":"0501726","name":"Lp-8"},"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":"0501726|M00442|1950-01-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00442","name":"Union Carbide Corp"},"object":{"type":"operator","id":"L00522","name":"Union Carbide Corp"},"validFrom":"1950-01-01","validTo":"1988-02-07","current":false,"derived":true,"evidenceMineId":"0501726","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|L00522|1950-01-01|M00442|1950-01-01|110941"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L10250","name":"Nelson Mining Inc"},"object":{"type":"mine","id":"0501726","name":"Lp-8"},"validFrom":"1988-02-08","validTo":"1990-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|L10250|1988-02-08|1990-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M07985","name":"Nelson Joe"},"object":{"type":"mine","id":"0501726","name":"Lp-8"},"validFrom":"1988-02-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|M07985|1988-02-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M07985","name":"Nelson Joe"},"object":{"type":"operator","id":"L10250","name":"Nelson Mining Inc"},"validFrom":"1988-02-08","validTo":"1990-09-30","current":false,"derived":true,"evidenceMineId":"0501726","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|L10250|1988-02-08|M07985|1988-02-08|142483"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M05154","name":"Shumway Gary"},"object":{"type":"mine","id":"0501726","name":"Lp-8"},"validFrom":"1990-07-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|M05154|1990-07-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L11834","name":"Gary Shumway"},"object":{"type":"mine","id":"0501726","name":"Lp-8"},"validFrom":"1990-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|L11834|1990-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M05154","name":"Shumway Gary"},"object":{"type":"operator","id":"L11834","name":"Gary Shumway"},"validFrom":"1990-10-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"0501726","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0501726|L11834|1990-10-01|M05154|1990-07-30|133842"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0501726","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"}}