{"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":"2026-10-18T09:31:49.615908+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":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"operator":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"controller":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-18T09:31:49.615908+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"object":{"type":"mine","id":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"validFrom":"1950-01-01","validTo":"1987-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1950-01-01|1987-09-30"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"validFrom":"1950-01-01","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|C02508|1950-01-01|2011-05-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"validFrom":"1950-01-01","validTo":"1987-09-30","current":false,"derived":true,"evidenceMineId":"4602040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1950-01-01|C02508|1950-01-01|58827"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00085","name":"Richard H  Abraham et al"},"object":{"type":"mine","id":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"validFrom":"1975-05-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|C00085|1975-05-27|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P04273","name":"Laurel Creek Mining Company Inc"},"object":{"type":"mine","id":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"validFrom":"1987-10-01","validTo":"1991-10-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P04273|1987-10-01|1991-10-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00085","name":"Richard H  Abraham et al"},"object":{"type":"operator","id":"P04273","name":"Laurel Creek Mining Company Inc"},"validFrom":"1987-10-01","validTo":"1991-10-31","current":false,"derived":true,"evidenceMineId":"4602040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P04273|1987-10-01|C00085|1975-05-27|44125"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"object":{"type":"mine","id":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"validFrom":"1991-11-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1991-11-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"validFrom":"1991-11-01","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"4602040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1991-11-01|C02508|1950-01-01|58828"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|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":"P01231","name":"Omar Mining Company"},"validFrom":"2011-06-01","validTo":"1987-09-30","current":false,"derived":true,"evidenceMineId":"4602040","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1950-01-01|0041211|2011-06-01|1944"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"4602040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1991-11-01|0041211|2011-06-01|1945"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"4602040","name":"Truck Shop And Haul Roads H212 H396"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|0127923|2016-07-26|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"validFrom":"2016-07-26","validTo":"1987-09-30","current":false,"derived":true,"evidenceMineId":"4602040","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1950-01-01|0127923|2016-07-26|25494"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P01231","name":"Omar Mining Company"},"validFrom":"2016-07-26","validTo":null,"current":true,"derived":true,"evidenceMineId":"4602040","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-18T09:31:49.615908+00:00","recordKey":"4602040|P01231|1991-11-01|0127923|2016-07-26|25495"}}],"coverage":{"historyRecords":7,"edgeCount":14,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4602040","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}