{"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":"1516211","name":"No. 1"},"operator":{"type":"operator","id":"0101386","name":"Oak Ridge Energy Inc."},"controller":{"type":"controller","id":"0085637","name":"Charles E  Walker"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C12837","name":"Dianna  Meade"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"1987-01-06","validTo":"1992-09-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|C12837|1987-01-06|1992-09-22"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P18421","name":"Little D Coal Company Inc"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"1987-10-01","validTo":"1992-09-22","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P18421|1987-10-01|1992-09-22"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C12837","name":"Dianna  Meade"},"object":{"type":"operator","id":"P18421","name":"Little D Coal Company Inc"},"validFrom":"1987-10-01","validTo":"1992-09-22","current":false,"derived":true,"evidenceMineId":"1516211","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P18421|1987-10-01|C12837|1987-01-06|87995"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22123","name":"C G M Coal Company Inc"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"1992-09-23","validTo":"2000-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P22123|1992-09-23|2000-07-31"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14734","name":"Wheeler William"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"1992-09-23","validTo":"2000-07-31","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|C14734|1992-09-23|2000-07-31"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14734","name":"Wheeler William"},"object":{"type":"operator","id":"P22123","name":"C G M Coal Company Inc"},"validFrom":"1992-09-23","validTo":"2000-07-31","current":false,"derived":true,"evidenceMineId":"1516211","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P22123|1992-09-23|C14734|1992-09-23|93738"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24477","name":"Blackbird Coal Company Inc"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2000-08-01","validTo":"2001-08-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P24477|2000-08-01|2001-08-21"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15722","name":"Eddie D  Lawson et al"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2000-08-01","validTo":"2001-08-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|C15722|2000-08-01|2001-08-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15722","name":"Eddie D  Lawson et al"},"object":{"type":"operator","id":"P24477","name":"Blackbird Coal Company Inc"},"validFrom":"2000-08-01","validTo":"2001-08-21","current":false,"derived":true,"evidenceMineId":"1516211","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P24477|2000-08-01|C15722|2000-08-01|96615"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P24725","name":"E-Z Mining Inc"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2001-08-22","validTo":"2009-06-03","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P24725|2001-08-22|2009-06-03"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14734","name":"Wheeler William"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2001-08-22","validTo":"2002-01-28","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|C14734|2001-08-22|2002-01-28"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14734","name":"Wheeler William"},"object":{"type":"operator","id":"P24725","name":"E-Z Mining Inc"},"validFrom":"2001-08-22","validTo":"2002-01-28","current":false,"derived":true,"evidenceMineId":"1516211","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P24725|2001-08-22|C14734|2001-08-22|93739"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0040550","name":"Golden  Sandlin"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2002-01-29","validTo":"2003-08-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|0040550|2002-01-29|2003-08-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0040550","name":"Golden  Sandlin"},"object":{"type":"operator","id":"P24725","name":"E-Z Mining Inc"},"validFrom":"2002-01-29","validTo":"2003-08-17","current":false,"derived":true,"evidenceMineId":"1516211","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P24725|2001-08-22|0040550|2002-01-29|209"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0042081","name":"Patrick  Banks"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2003-08-18","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|0042081|2003-08-18|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0042081","name":"Patrick  Banks"},"object":{"type":"operator","id":"P24725","name":"E-Z Mining Inc"},"validFrom":"2003-08-18","validTo":"2009-06-03","current":false,"derived":true,"evidenceMineId":"1516211","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|P24725|2001-08-22|0042081|2003-08-18|3647"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"0101386","name":"Oak Ridge Energy Inc."},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2009-06-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|0101386|2009-06-04|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"0085637","name":"Charles E  Walker"},"object":{"type":"mine","id":"1516211","name":"No. 1"},"validFrom":"2009-06-04","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|0085637|2009-06-04|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"0085637","name":"Charles E  Walker"},"object":{"type":"operator","id":"0101386","name":"Oak Ridge Energy Inc."},"validFrom":"2009-06-04","validTo":null,"current":true,"derived":true,"evidenceMineId":"1516211","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1516211|0101386|2009-06-04|0085637|2009-06-04|13681"}}],"coverage":{"historyRecords":7,"edgeCount":19,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1516211","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"}}