{"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":"4608387","name":"Laurel Creek/Spirit Mine"},"operator":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"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":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"1974-01-01","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|C02508|1974-01-01|2011-05-31"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11051","name":"Elk Run Coal Company Inc"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"1994-01-01","validTo":"2004-02-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P11051|1994-01-01|2004-02-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P11051","name":"Elk Run Coal Company Inc"},"validFrom":"1994-01-01","validTo":"2004-02-17","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P11051|1994-01-01|C02508|1974-01-01|58991"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"1996-02-05","validTo":"2011-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|C02508|1996-02-05|2011-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C03666","name":"Ronald G  Goff"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"2000-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|C03666|2000-05-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"2004-02-18","validTo":"2004-09-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-02-18|2004-09-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2004-02-18","validTo":"2004-09-26","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-02-18|C02508|1996-02-05|59439"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24399","name":"RAMA Development Co., Inc."},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"2004-09-27","validTo":"2004-11-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P24399|2004-09-27|2004-11-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C03666","name":"Ronald G  Goff"},"object":{"type":"operator","id":"P24399","name":"RAMA Development Co., Inc."},"validFrom":"2004-09-27","validTo":"2004-11-07","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P24399|2004-09-27|C03666|2000-05-01|63527"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"2004-11-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-11-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02508","name":"Massey Energy Company"},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2004-11-08","validTo":"2011-05-31","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-11-08|C02508|1996-02-05|59440"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|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":"P11051","name":"Elk Run Coal Company Inc"},"validFrom":"2011-06-01","validTo":"2004-02-17","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P11051|1994-01-01|0041211|2011-06-01|2089"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2011-06-01","validTo":"2004-09-26","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-02-18|0041211|2011-06-01|2090"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0041211","name":"Alpha Natural Resources, Inc."},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2011-06-01","validTo":"2016-07-25","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-11-08|0041211|2011-06-01|2091"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"2016-07-26","validTo":"2018-11-08","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|0127923|2016-07-26|2018-11-08"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P11051","name":"Elk Run Coal Company Inc"},"validFrom":"2016-07-26","validTo":"2004-02-17","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P11051|1994-01-01|0127923|2016-07-26|25209"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2016-07-26","validTo":"2004-09-26","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-02-18|0127923|2016-07-26|25210"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127923","name":"Alpha Natural Resources Holdings, Inc"},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2016-07-26","validTo":"2018-11-08","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-11-08|0127923|2016-07-26|25211"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0127321","name":"Alpha Metallurgical Resources Inc"},"object":{"type":"mine","id":"4608387","name":"Laurel Creek/Spirit Mine"},"validFrom":"2018-11-09","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|0127321|2018-11-09|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127321","name":"Alpha Metallurgical Resources Inc"},"object":{"type":"operator","id":"P11051","name":"Elk Run Coal Company Inc"},"validFrom":"2018-11-09","validTo":"2004-02-17","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P11051|1994-01-01|0127321|2018-11-09|24844"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127321","name":"Alpha Metallurgical Resources Inc"},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2018-11-09","validTo":"2004-09-26","current":false,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-02-18|0127321|2018-11-09|24845"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0127321","name":"Alpha Metallurgical Resources Inc"},"object":{"type":"operator","id":"P23835","name":"Spartan Mining Company"},"validFrom":"2018-11-09","validTo":null,"current":true,"derived":true,"evidenceMineId":"4608387","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4608387|P23835|2004-11-08|0127321|2018-11-09|24846"}}],"coverage":{"historyRecords":13,"edgeCount":23,"intervalAnomalies":6,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4608387","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"}}