{"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":"1519710","name":"No. 2"},"operator":{"type":"operator","id":"0163213","name":"Tackett Energies LLC"},"controller":{"type":"controller","id":"0147341","name":"Jason D Tackett"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"0050011","name":"Greg  Damron  et al"},"object":{"type":"mine","id":"1519710","name":"No. 2"},"validFrom":"2007-10-16","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0050011|2007-10-16|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0128834","name":"GR Mining Inc"},"object":{"type":"mine","id":"1519710","name":"No. 2"},"validFrom":"2013-07-02","validTo":"2014-07-06","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0128834|2013-07-02|2014-07-06"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0109541","name":"Gary D  Boyd"},"object":{"type":"mine","id":"1519710","name":"No. 2"},"validFrom":"2013-07-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0109541|2013-07-02|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0109541","name":"Gary D  Boyd"},"object":{"type":"operator","id":"0128834","name":"GR Mining Inc"},"validFrom":"2013-07-02","validTo":"2014-07-06","current":false,"derived":true,"evidenceMineId":"1519710","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0128834|2013-07-02|0109541|2013-07-02|19965"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0083924","name":"Cheyenne Mining, Inc."},"object":{"type":"mine","id":"1519710","name":"No. 2"},"validFrom":"2014-07-07","validTo":"2019-04-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0083924|2014-07-07|2019-04-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0050011","name":"Greg  Damron  et al"},"object":{"type":"operator","id":"0083924","name":"Cheyenne Mining, Inc."},"validFrom":"2014-07-07","validTo":"2019-04-29","current":false,"derived":true,"evidenceMineId":"1519710","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0083924|2014-07-07|0050011|2007-10-16|6277"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0050011","name":"Henry  Chaney  et al"},"object":{"type":"operator","id":"0083924","name":"Cheyenne Mining, Inc."},"validFrom":"2014-07-07","validTo":"2019-04-29","current":false,"derived":true,"evidenceMineId":"1519710","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0083924|2014-07-07|0050011|2007-10-16|6278"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0163213","name":"Tackett Energies LLC"},"object":{"type":"mine","id":"1519710","name":"No. 2"},"validFrom":"2019-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0163213|2019-04-30|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0147341","name":"Jason D Tackett"},"object":{"type":"mine","id":"1519710","name":"No. 2"},"validFrom":"2019-04-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0147341|2019-04-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0147341","name":"Jason D Tackett"},"object":{"type":"operator","id":"0163213","name":"Tackett Energies LLC"},"validFrom":"2019-04-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"1519710","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1519710|0163213|2019-04-30|0147341|2019-04-30|30206"}}],"coverage":{"historyRecords":4,"edgeCount":10,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1519710","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"}}