{"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":"1513905","name":"No 36"},"operator":{"type":"operator","id":"P19607","name":"R S Mining Inc"},"controller":{"type":"controller","id":"C08125","name":"Ronald S  Ratliff"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02404","name":"Freeman Bruce Et Al"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1972-12-02","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|C02404|1972-12-02|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01883","name":"El Paso Energy Corp"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1979-06-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|C01883|1979-06-29|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02802","name":"Calahan Elkhorn Coal Company Inc"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1983-01-01","validTo":"1984-03-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P02802|1983-01-01|1984-03-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02404","name":"Freeman Bruce Et Al"},"object":{"type":"operator","id":"P02802","name":"Calahan Elkhorn Coal Company Inc"},"validFrom":"1983-01-01","validTo":"1984-03-29","current":false,"derived":true,"evidenceMineId":"1513905","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P02802|1983-01-01|C02404|1972-12-02|58367"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P14114","name":"Enterprise Coal Company"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1984-03-30","validTo":"1984-10-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P14114|1984-03-30|1984-10-16"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01883","name":"El Paso Energy Corp"},"object":{"type":"operator","id":"P14114","name":"Enterprise Coal Company"},"validFrom":"1984-03-30","validTo":"1984-10-16","current":false,"derived":true,"evidenceMineId":"1513905","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P14114|1984-03-30|C01883|1979-06-29|56557"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16102","name":"Little Fork Coal Company Inc"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1984-10-17","validTo":"1988-07-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P16102|1984-10-17|1988-07-07"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C07009","name":"Tester Rufus"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1984-10-17","validTo":"1988-07-07","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|C07009|1984-10-17|1988-07-07"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C07009","name":"Tester Rufus"},"object":{"type":"operator","id":"P16102","name":"Little Fork Coal Company Inc"},"validFrom":"1984-10-17","validTo":"1988-07-07","current":false,"derived":true,"evidenceMineId":"1513905","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P16102|1984-10-17|C07009|1984-10-17|73500"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P19607","name":"R S Mining Inc"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1988-07-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P19607|1988-07-08|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08125","name":"Ronald S  Ratliff"},"object":{"type":"mine","id":"1513905","name":"No 36"},"validFrom":"1988-07-08","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|C08125|1988-07-08|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08125","name":"Ronald S  Ratliff"},"object":{"type":"operator","id":"P19607","name":"R S Mining Inc"},"validFrom":"1988-07-08","validTo":null,"current":true,"derived":true,"evidenceMineId":"1513905","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1513905|P19607|1988-07-08|C08125|1988-07-08|76405"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1513905","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"}}