{"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":"2026-10-17T05:35:58.500035+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":"1202470","name":"ERP Iron Ore, LLC"},"operator":{"type":"operator","id":"0149656","name":"ERP Iron Ore, LLC"},"controller":{"type":"controller","id":"0130321","name":"ERP Compliant Fuels, LLC"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0140933","name":"Mag Pellet"},"object":{"type":"mine","id":"1202470","name":"ERP Iron Ore, LLC"},"validFrom":"2015-07-28","validTo":"2017-02-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202470|0140933|2015-07-28|2017-02-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0082193","name":"Alan  Fritz  et al"},"object":{"type":"mine","id":"1202470","name":"ERP Iron Ore, LLC"},"validFrom":"2015-07-28","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202470|0082193|2015-07-28|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0082193","name":"Alan  Fritz  et al"},"object":{"type":"operator","id":"0140933","name":"Mag Pellet"},"validFrom":"2015-07-28","validTo":"2017-02-15","current":false,"derived":true,"evidenceMineId":"1202470","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202470|0140933|2015-07-28|0082193|2015-07-28|13034"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0082193","name":"Larry  Lehtinen  et al"},"object":{"type":"operator","id":"0140933","name":"Mag Pellet"},"validFrom":"2015-07-28","validTo":"2017-02-15","current":false,"derived":true,"evidenceMineId":"1202470","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202470|0140933|2015-07-28|0082193|2015-07-28|13035"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0130321","name":"ERP Compliant Fuels, LLC"},"object":{"type":"mine","id":"1202470","name":"ERP Iron Ore, LLC"},"validFrom":"2017-01-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202470|0130321|2017-01-30|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0149656","name":"ERP Iron Ore, LLC"},"object":{"type":"mine","id":"1202470","name":"ERP Iron Ore, LLC"},"validFrom":"2017-02-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202470|0149656|2017-02-16|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0130321","name":"ERP Compliant Fuels, LLC"},"object":{"type":"operator","id":"0149656","name":"ERP Iron Ore, LLC"},"validFrom":"2017-02-16","validTo":null,"current":true,"derived":true,"evidenceMineId":"1202470","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"1202470|0149656|2017-02-16|0130321|2017-01-30|26148"}}],"coverage":{"historyRecords":3,"edgeCount":7,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1202470","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}