{"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":"4405270","name":"TOMS CREEK COMPLEX"},"operator":{"type":"operator","id":"0146274","name":"Paramont Contura, LLC"},"controller":{"type":"controller","id":"0127321","name":"Alpha Metallurgical Resources Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24015","name":"Coastal Coal Company, LLC"},"object":{"type":"mine","id":"4405270","name":"TOMS CREEK COMPLEX"},"validFrom":"1979-06-01","validTo":"2003-01-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|P24015|1979-06-01|2003-01-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01883","name":"El Paso Energy Corp"},"object":{"type":"mine","id":"4405270","name":"TOMS CREEK COMPLEX"},"validFrom":"1989-04-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|C01883|1989-04-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01883","name":"El Paso Energy Corp"},"object":{"type":"operator","id":"P24015","name":"Coastal Coal Company, LLC"},"validFrom":"1989-04-04","validTo":"2003-01-31","current":false,"derived":true,"evidenceMineId":"4405270","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|P24015|1979-06-01|C01883|1989-04-04|56695"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4405270","name":"TOMS CREEK COMPLEX"},"validFrom":"2002-12-13","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|0041211|2002-12-13|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0050885","name":"Paramont Coal Company Virginia, LLC"},"object":{"type":"mine","id":"4405270","name":"TOMS CREEK COMPLEX"},"validFrom":"2003-02-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|0050885|2003-02-01|2016-07-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"0050885","name":"Paramont Coal Company Virginia, LLC"},"validFrom":"2003-02-01","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"4405270","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|0050885|2003-02-01|0041211|2002-12-13|1578"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0146274","name":"Paramont Contura, LLC"},"object":{"type":"mine","id":"4405270","name":"TOMS CREEK COMPLEX"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|0146274|2016-07-26|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127321","name":"Alpha Metallurgical Resources Inc"},"object":{"type":"mine","id":"4405270","name":"TOMS CREEK COMPLEX"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|0127321|2016-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127321","name":"Alpha Metallurgical Resources Inc"},"object":{"type":"operator","id":"0146274","name":"Paramont Contura, LLC"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"4405270","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4405270|0146274|2016-07-26|0127321|2016-07-26|24721"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4405270","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"}}