{"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":"4607802","name":"Hazy Creek Mine"},"operator":{"type":"operator","id":"P22901","name":"Performance Coal Company"},"controller":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14037","name":"Roger  Bell"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1979-12-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|C14037|1979-12-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C10294","name":"Chris  Cline"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1986-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|C10294|1986-10-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18091","name":"Mystic Energy Inc"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1989-11-01","validTo":"1993-05-04","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P18091|1989-11-01|1993-05-04"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C10294","name":"Chris  Cline"},"object":{"type":"operator","id":"P18091","name":"Mystic Energy Inc"},"validFrom":"1989-11-01","validTo":"1993-05-04","current":false,"derived":true,"evidenceMineId":"4607802","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P18091|1989-11-01|C10294|1986-10-01|81652"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20663","name":"Robin Resources Inc"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1993-05-05","validTo":"1993-09-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P20663|1993-05-05|1993-09-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14037","name":"Roger  Bell"},"object":{"type":"operator","id":"P20663","name":"Robin Resources Inc"},"validFrom":"1993-05-05","validTo":"1993-09-21","current":false,"derived":true,"evidenceMineId":"4607802","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P20663|1993-05-05|C14037|1979-12-01|91775"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02571","name":"Tommy Joe  Owens"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1993-09-01","validTo":"1995-01-11","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|C02571|1993-09-01|1995-01-11"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22495","name":"Elite Mining Services Inc"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1993-09-22","validTo":"1994-10-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P22495|1993-09-22|1994-10-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02571","name":"Tommy Joe  Owens"},"object":{"type":"operator","id":"P22495","name":"Elite Mining Services Inc"},"validFrom":"1993-09-22","validTo":"1994-10-18","current":false,"derived":true,"evidenceMineId":"4607802","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P22495|1993-09-22|C02571|1993-09-01|60073"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1994-10-15","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|C02508|1994-10-15|2011-05-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22901","name":"Performance Coal Company"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"1994-10-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P22901|1994-10-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P22901","name":"Performance Coal Company"},"validFrom":"1994-10-19","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"4607802","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P22901|1994-10-19|C02508|1994-10-15|59389"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|0041211|2011-06-01|2016-07-25"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P22901","name":"Performance Coal Company"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"4607802","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P22901|1994-10-19|0041211|2011-06-01|2039"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"4607802","name":"Hazy Creek Mine"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|0127923|2016-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P22901","name":"Performance Coal Company"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"4607802","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607802|P22901|1994-10-19|0127923|2016-07-26|25555"}}],"coverage":{"historyRecords":6,"edgeCount":16,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4607802","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"}}