{"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":"4406000","name":"E. Dillon Mine #2"},"operator":{"type":"operator","id":"L01846","name":"E. Dillon & Compnay"},"controller":{"type":"controller","id":"0177963","name":"Kevin  Dietrick"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"M02198","name":"Otey C  Dudley et al"},"object":{"type":"mine","id":"4406000","name":"E. Dillon Mine #2"},"validFrom":"1950-01-01","validTo":"2019-10-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|M02198|1950-01-01|2019-10-14"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L31934","name":"Clinch Valley Limestone Inc"},"object":{"type":"mine","id":"4406000","name":"E. Dillon Mine #2"},"validFrom":"1983-04-01","validTo":"2024-12-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|L31934|1983-04-01|2024-12-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"M31934","name":"Taylor Bill Reece"},"object":{"type":"mine","id":"4406000","name":"E. Dillon Mine #2"},"validFrom":"1983-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|M31934|1983-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M31934","name":"Taylor Bill Reece"},"object":{"type":"operator","id":"L31934","name":"Clinch Valley Limestone Inc"},"validFrom":"1983-04-01","validTo":"2024-12-17","current":false,"derived":true,"evidenceMineId":"4406000","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|L31934|1983-04-01|M31934|1983-04-01|160305"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0166541","name":"Mark  Norden"},"object":{"type":"mine","id":"4406000","name":"E. Dillon Mine #2"},"validFrom":"2019-10-15","validTo":"2023-07-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|0166541|2019-10-15|2023-07-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0177963","name":"Kevin  Dietrick"},"object":{"type":"mine","id":"4406000","name":"E. Dillon Mine #2"},"validFrom":"2023-07-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|0177963|2023-07-06|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"L01846","name":"E. Dillon & Compnay"},"object":{"type":"mine","id":"4406000","name":"E. Dillon Mine #2"},"validFrom":"2024-12-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|L01846|2024-12-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0166541","name":"Mark  Norden"},"object":{"type":"operator","id":"L01846","name":"E. Dillon & Compnay"},"validFrom":"2024-12-18","validTo":"2023-07-05","current":false,"derived":true,"evidenceMineId":"4406000","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|L01846|2024-12-18|0166541|2019-10-15|34969"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0177963","name":"Kevin  Dietrick"},"object":{"type":"operator","id":"L01846","name":"E. Dillon & Compnay"},"validFrom":"2024-12-18","validTo":null,"current":true,"derived":true,"evidenceMineId":"4406000","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|L01846|2024-12-18|0177963|2023-07-06|38142"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"M02198","name":"Otey C  Dudley et al"},"object":{"type":"operator","id":"L01846","name":"E. Dillon & Compnay"},"validFrom":"2024-12-18","validTo":"2019-10-14","current":false,"derived":true,"evidenceMineId":"4406000","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4406000|L01846|2024-12-18|M02198|1950-01-01|124259"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4406000","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"}}