{"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":"1103131","name":"BCR Mine #1"},"operator":{"type":"operator","id":"0175794","name":"BC Recovery, LLC"},"controller":{"type":"controller","id":"0156741","name":"Josh J  Carter; Steve A  Carter"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2004-05-21","validTo":"2008-07-13","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2004-05-21|2008-07-13"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14544","name":"Franklin D  Robertson  et al"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2004-05-21","validTo":"2020-06-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|C14544|2004-05-21|2020-06-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14544","name":"Franklin D  Robertson  et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2004-05-21","validTo":"2008-07-13","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2004-05-21|C14544|2004-05-21|93249"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14544","name":"James O  Bunn  et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2004-05-21","validTo":"2008-07-13","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2004-05-21|C14544|2004-05-21|93250"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0069839","name":"Brian J  Veldhuizen et al"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2008-05-01","validTo":"2015-08-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0069839|2008-05-01|2015-08-10"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0089665","name":"Pittsburgh Energy LLC"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2008-07-14","validTo":"2015-06-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0089665|2008-07-14|2015-06-18"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0069839","name":"Brian J  Veldhuizen et al"},"object":{"type":"operator","id":"0089665","name":"Pittsburgh Energy LLC"},"validFrom":"2008-07-14","validTo":"2015-06-18","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0089665|2008-07-14|0069839|2008-05-01|9990"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2015-06-19","validTo":"2021-02-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2015-06-19|2021-02-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14544","name":"Franklin D  Robertson  et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2015-06-19","validTo":"2020-06-29","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2015-06-19|C14544|2004-05-21|93251"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14544","name":"James O  Bunn  et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2015-06-19","validTo":"2020-06-29","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2015-06-19|C14544|2004-05-21|93252"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0119761","name":"Jeffrey A  Haycraft"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2015-08-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0119761|2015-08-11|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0119761","name":"Jeffrey A  Haycraft"},"object":{"type":"operator","id":"0089665","name":"Pittsburgh Energy LLC"},"validFrom":"2015-08-11","validTo":"2015-06-18","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0089665|2008-07-14|0119761|2015-08-11|23318"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0156741","name":"Josh J  Carter et al"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2020-06-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0156741|2020-06-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156741","name":"Josh J  Carter et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2020-06-30","validTo":"2008-07-13","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2004-05-21|0156741|2020-06-30|32468"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156741","name":"Steve A  Carter et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2020-06-30","validTo":"2008-07-13","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2004-05-21|0156741|2020-06-30|32469"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156741","name":"Josh J  Carter et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2020-06-30","validTo":"2021-02-28","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2015-06-19|0156741|2020-06-30|32470"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156741","name":"Steve A  Carter et al"},"object":{"type":"operator","id":"0052621","name":"Elk Land Holdings, LLC"},"validFrom":"2020-06-30","validTo":"2021-02-28","current":false,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0052621|2015-06-19|0156741|2020-06-30|32471"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0175794","name":"BC Recovery, LLC"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2021-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0175794|2021-03-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0156741","name":"Steve A  Carter et al"},"object":{"type":"mine","id":"1103131","name":"BCR Mine #1"},"validFrom":"2021-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0156741|2021-03-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156741","name":"Steve A  Carter et al"},"object":{"type":"operator","id":"0175794","name":"BC Recovery, LLC"},"validFrom":"2021-03-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0175794|2021-03-01|0156741|2021-03-01|32474"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0156741","name":"Josh J  Carter et al"},"object":{"type":"operator","id":"0175794","name":"BC Recovery, LLC"},"validFrom":"2021-03-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1103131","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1103131|0175794|2021-03-01|0156741|2021-03-01|32475"}}],"coverage":{"historyRecords":12,"edgeCount":21,"intervalAnomalies":3,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1103131","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"}}