{"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":"4609298","name":"Mine No. 40"},"operator":{"type":"operator","id":"0050923","name":"XMV, Inc."},"controller":{"type":"controller","id":"M00106","name":"Cleveland-Cliffs Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14028","name":"Steven W  Haynes et al"},"object":{"type":"mine","id":"4609298","name":"Mine No. 40"},"validFrom":"1989-11-01","validTo":"2008-09-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|C14028|1989-11-01|2008-09-15"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00884","name":"William G  Skewes"},"object":{"type":"mine","id":"4609298","name":"Mine No. 40"},"validFrom":"2002-10-17","validTo":"2008-10-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|C00884|2002-10-17|2008-10-19"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20641","name":"Extra Energy, Inc."},"object":{"type":"mine","id":"4609298","name":"Mine No. 40"},"validFrom":"2008-07-22","validTo":"2008-10-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|P20641|2008-07-22|2008-10-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14028","name":"Steven W  Haynes et al"},"object":{"type":"operator","id":"P20641","name":"Extra Energy, Inc."},"validFrom":"2008-07-22","validTo":"2008-09-15","current":false,"derived":true,"evidenceMineId":"4609298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|P20641|2008-07-22|C14028|1989-11-01|91750"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0081113","name":"ArcelorMittal"},"object":{"type":"mine","id":"4609298","name":"Mine No. 40"},"validFrom":"2008-09-16","validTo":"2020-12-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|0081113|2008-09-16|2020-12-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0081113","name":"ArcelorMittal"},"object":{"type":"operator","id":"P20641","name":"Extra Energy, Inc."},"validFrom":"2008-09-16","validTo":"2008-10-19","current":false,"derived":true,"evidenceMineId":"4609298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|P20641|2008-07-22|0081113|2008-09-16|12881"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050923","name":"XMV, Inc."},"object":{"type":"mine","id":"4609298","name":"Mine No. 40"},"validFrom":"2008-10-20","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|0050923|2008-10-20|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0081113","name":"ArcelorMittal"},"object":{"type":"mine","id":"4609298","name":"Mine No. 40"},"validFrom":"2008-10-20","validTo":"2020-12-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|0081113|2008-10-20|2020-12-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0081113","name":"ArcelorMittal"},"object":{"type":"operator","id":"0050923","name":"XMV, Inc."},"validFrom":"2008-10-20","validTo":"2020-12-08","current":false,"derived":true,"evidenceMineId":"4609298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|0050923|2008-10-20|0081113|2008-10-20|12897"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00884","name":"William G  Skewes"},"object":{"type":"operator","id":"0050923","name":"XMV, Inc."},"validFrom":"2008-10-20","validTo":"2008-10-19","current":false,"derived":true,"evidenceMineId":"4609298","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|0050923|2008-10-20|C00884|2002-10-17|50893"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M00106","name":"Cleveland-Cliffs Inc"},"object":{"type":"mine","id":"4609298","name":"Mine No. 40"},"validFrom":"2020-12-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|M00106|2020-12-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00106","name":"Cleveland-Cliffs Inc"},"object":{"type":"operator","id":"P20641","name":"Extra Energy, Inc."},"validFrom":"2020-12-09","validTo":"2008-10-19","current":false,"derived":true,"evidenceMineId":"4609298","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|P20641|2008-07-22|M00106|2020-12-09|104306"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M00106","name":"Cleveland-Cliffs Inc"},"object":{"type":"operator","id":"0050923","name":"XMV, Inc."},"validFrom":"2020-12-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"4609298","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4609298|0050923|2008-10-20|M00106|2020-12-09|104307"}}],"coverage":{"historyRecords":6,"edgeCount":13,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4609298","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"}}