{"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":"1517465","name":"Double C"},"operator":{"type":"operator","id":"P23395","name":"Kentucky May Mining"},"controller":{"type":"controller","id":"C14045","name":"Florida Progress Corporation"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14045","name":"Florida Progress Corporation"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"1989-10-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|C14045|1989-10-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08213","name":"Ronnie  Thacker et al"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"1992-10-29","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|C08213|1992-10-29|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22513","name":"Chloe Elkhorn Inc"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"1993-10-01","validTo":"1994-06-01","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P22513|1993-10-01|1994-06-01"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08213","name":"Ronnie  Thacker et al"},"object":{"type":"operator","id":"P22513","name":"Chloe Elkhorn Inc"},"validFrom":"1993-10-01","validTo":"1994-06-01","current":false,"derived":true,"evidenceMineId":"1517465","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P22513|1993-10-01|C08213|1992-10-29|76770"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08213","name":"Freddy  Thacker et al"},"object":{"type":"operator","id":"P22513","name":"Chloe Elkhorn Inc"},"validFrom":"1993-10-01","validTo":"1994-06-01","current":false,"derived":true,"evidenceMineId":"1517465","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P22513|1993-10-01|C08213|1992-10-29|76771"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C15049","name":"Bert T  Stanley"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"1994-05-24","validTo":"1997-03-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|C15049|1994-05-24|1997-03-10"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20682","name":"Kentucky May Coal Company Inc"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"1994-06-02","validTo":"1994-07-19","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P20682|1994-06-02|1994-07-19"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14045","name":"Florida Progress Corporation"},"object":{"type":"operator","id":"P20682","name":"Kentucky May Coal Company Inc"},"validFrom":"1994-06-02","validTo":"1994-07-19","current":false,"derived":true,"evidenceMineId":"1517465","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P20682|1994-06-02|C14045|1989-10-01|91836"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22749","name":"Double C Construction Ltd"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"1994-07-20","validTo":"1997-03-10","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P22749|1994-07-20|1997-03-10"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C15049","name":"Bert T  Stanley"},"object":{"type":"operator","id":"P22749","name":"Double C Construction Ltd"},"validFrom":"1994-07-20","validTo":"1997-03-10","current":false,"derived":true,"evidenceMineId":"1517465","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P22749|1994-07-20|C15049|1994-05-24|94635"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P23395","name":"Kentucky May Mining"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"1997-03-11","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P23395|1997-03-11|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14045","name":"Florida Progress Corporation"},"object":{"type":"mine","id":"1517465","name":"Double C"},"validFrom":"2000-11-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|C14045|2000-11-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14045","name":"Florida Progress Corporation"},"object":{"type":"operator","id":"P23395","name":"Kentucky May Mining"},"validFrom":"2000-11-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"1517465","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1517465|P23395|1997-03-11|C14045|2000-11-30|91865"}}],"coverage":{"historyRecords":5,"edgeCount":13,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1517465","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"}}