{"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":"1518662","name":"Bear Branch E3-1"},"operator":{"type":"operator","id":"0134733","name":"Blue Diamond Mining LLC"},"controller":{"type":"controller","id":"0158381","name":"Sev.en Global Investments a.s."},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00286","name":"TECO Energy Inc"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2000-11-17","validTo":"2015-09-20","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|C00286|2000-11-17|2015-09-20"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24542","name":"Perry County Coal, LLC."},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2003-08-25","validTo":"2019-09-26","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|P24542|2003-08-25|2019-09-26"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00286","name":"TECO Energy Inc"},"object":{"type":"operator","id":"P24542","name":"Perry County Coal, LLC."},"validFrom":"2003-08-25","validTo":"2015-09-20","current":false,"derived":true,"evidenceMineId":"1518662","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|P24542|2003-08-25|C00286|2000-11-17|45881"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0109461","name":"Blackhawk Mining LLC"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2014-09-04","validTo":"2020-05-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0109461|2014-09-04|2020-05-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0120801","name":"Cambrian Coal Corp"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2015-09-21","validTo":"2019-06-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0120801|2015-09-21|2019-06-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0120801","name":"Cambrian Coal Corp"},"object":{"type":"operator","id":"P24542","name":"Perry County Coal, LLC."},"validFrom":"2015-09-21","validTo":"2019-06-15","current":false,"derived":true,"evidenceMineId":"1518662","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|P24542|2003-08-25|0120801|2015-09-21|23543"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0149203","name":"J Mark  Campbell"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2019-06-16","validTo":"2019-09-30","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0149203|2019-06-16|2019-09-30"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0149203","name":"J Mark  Campbell"},"object":{"type":"operator","id":"P24542","name":"Perry County Coal, LLC."},"validFrom":"2019-06-16","validTo":"2019-09-26","current":false,"derived":true,"evidenceMineId":"1518662","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|P24542|2003-08-25|0149203|2019-06-16|30525"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0175978","name":"Perry County Resources"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2019-09-27","validTo":"2021-03-24","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0175978|2019-09-27|2021-03-24"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0150901","name":"American Resources Corporation"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2019-09-27","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0150901|2019-09-27|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0150901","name":"American Resources Corporation"},"object":{"type":"operator","id":"0175978","name":"Perry County Resources"},"validFrom":"2019-09-27","validTo":"2021-03-24","current":false,"derived":true,"evidenceMineId":"1518662","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0175978|2019-09-27|0150901|2019-09-27|31147"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0150901","name":"American Resources Corporation"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2019-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0150901|2019-10-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0150901","name":"American Resources Corporation"},"object":{"type":"operator","id":"P24542","name":"Perry County Coal, LLC."},"validFrom":"2019-10-01","validTo":"2019-09-26","current":false,"derived":true,"evidenceMineId":"1518662","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|P24542|2003-08-25|0150901|2019-10-01|31156"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0158381","name":"Sev.en Global Investments a.s."},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2020-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0158381|2020-06-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0134733","name":"Blue Diamond Mining LLC"},"object":{"type":"mine","id":"1518662","name":"Bear Branch E3-1"},"validFrom":"2021-03-25","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0134733|2021-03-25|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0109461","name":"Blackhawk Mining LLC"},"object":{"type":"operator","id":"0134733","name":"Blue Diamond Mining LLC"},"validFrom":"2021-03-25","validTo":"2020-05-31","current":false,"derived":true,"evidenceMineId":"1518662","intervalAnomaly":true,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0134733|2021-03-25|0109461|2014-09-04|19882"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0158381","name":"Sev.en Global Investments a.s."},"object":{"type":"operator","id":"0134733","name":"Blue Diamond Mining LLC"},"validFrom":"2021-03-25","validTo":null,"current":true,"derived":true,"evidenceMineId":"1518662","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1518662|0134733|2021-03-25|0158381|2020-06-01|32800"}}],"coverage":{"historyRecords":7,"edgeCount":17,"intervalAnomalies":2,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1518662","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"}}