{"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":"0202977","name":"Reymert Mine"},"operator":{"type":"operator","id":"0050396","name":"Gila Rock Products, LLC"},"controller":{"type":"controller","id":"0153381","name":"Norman M  Montgomery"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050396","name":"Gila Rock Products, LLC"},"object":{"type":"mine","id":"0202977","name":"Reymert Mine"},"validFrom":"2002-04-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202977|0050396|2002-04-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040780","name":"Norman  Montgomery  et al"},"object":{"type":"mine","id":"0202977","name":"Reymert Mine"},"validFrom":"2002-04-17","validTo":"2019-01-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202977|0040780|2002-04-17|2019-01-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040780","name":"Norman  Montgomery  et al"},"object":{"type":"operator","id":"0050396","name":"Gila Rock Products, LLC"},"validFrom":"2002-04-17","validTo":"2019-01-21","current":false,"derived":true,"evidenceMineId":"0202977","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202977|0050396|2002-04-17|0040780|2002-04-17|654"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040780","name":"Cheryl  Montgomery  et al"},"object":{"type":"operator","id":"0050396","name":"Gila Rock Products, LLC"},"validFrom":"2002-04-17","validTo":"2019-01-21","current":false,"derived":true,"evidenceMineId":"0202977","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202977|0050396|2002-04-17|0040780|2002-04-17|655"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0153381","name":"Norman M  Montgomery"},"object":{"type":"mine","id":"0202977","name":"Reymert Mine"},"validFrom":"2019-01-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202977|0153381|2019-01-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0153381","name":"Norman M  Montgomery"},"object":{"type":"operator","id":"0050396","name":"Gila Rock Products, LLC"},"validFrom":"2019-01-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"0202977","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"0202977|0050396|2002-04-17|0153381|2019-01-22|31778"}}],"coverage":{"historyRecords":3,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"0202977","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"}}