{"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":"4608329","name":"Mine 19"},"operator":{"type":"operator","id":"P06978","name":"Peerless Eagle 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":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"validFrom":"1975-09-01","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|C02508|1975-09-01|2011-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14718","name":"Gary D  Spurlock"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"validFrom":"1992-10-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|C14718|1992-10-07|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"validFrom":"1993-08-01","validTo":"1994-04-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1993-08-01|1994-04-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"1993-08-01","validTo":"1994-04-18","current":false,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1993-08-01|C02508|1975-09-01|59067"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22746","name":"R M I Contracting Corp"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"validFrom":"1994-04-19","validTo":"1994-10-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P22746|1994-04-19|1994-10-14"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13572","name":"Parsley Ronald Et Al"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"validFrom":"1994-04-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|C13572|1994-04-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13572","name":"Parsley Ronald Et Al"},"object":{"type":"operator","id":"P22746","name":"R M I Contracting Corp"},"validFrom":"1994-04-19","validTo":"1994-10-14","current":false,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P22746|1994-04-19|C13572|1994-04-19|90525"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22095","name":"Copperas Coal Corp"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"validFrom":"1994-10-15","validTo":"1997-03-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P22095|1994-10-15|1997-03-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14718","name":"Gary D  Spurlock"},"object":{"type":"operator","id":"P22095","name":"Copperas Coal Corp"},"validFrom":"1994-10-15","validTo":"1997-03-31","current":false,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P22095|1994-10-15|C14718|1992-10-07|93662"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"validFrom":"1997-04-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1997-04-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"1997-04-01","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1997-04-01|C02508|1975-09-01|59068"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"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":"4608329|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":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"2011-06-01","validTo":"1994-04-18","current":false,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1993-08-01|0041211|2011-06-01|2079"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1997-04-01|0041211|2011-06-01|2080"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"4608329","name":"Mine 19"},"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":"4608329|0127923|2016-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"2016-07-26","validTo":"1994-04-18","current":false,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1993-08-01|0127923|2016-07-26|25570"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P06978","name":"Peerless Eagle Coal Company"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608329","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4608329|P06978|1997-04-01|0127923|2016-07-26|25571"}}],"coverage":{"historyRecords":8,"edgeCount":17,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608329","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"}}