{"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":"3302532","name":"Coonville - Strip"},"operator":{"type":"operator","id":"P20326","name":"Darmac Combustion Inc"},"controller":{"type":"controller","id":"C13860","name":"Mc Cort David J"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02877","name":"Raven Hocking Coal Corp"},"object":{"type":"mine","id":"3302532","name":"Coonville - Strip"},"validFrom":"1950-01-01","validTo":"1973-12-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|P02877|1950-01-01|1973-12-05"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02468","name":"Bailey Russell R"},"object":{"type":"mine","id":"3302532","name":"Coonville - Strip"},"validFrom":"1950-01-01","validTo":"1973-12-05","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|C02468|1950-01-01|1973-12-05"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02468","name":"Bailey Russell R"},"object":{"type":"operator","id":"P02877","name":"Raven Hocking Coal Corp"},"validFrom":"1950-01-01","validTo":"1973-12-05","current":false,"derived":true,"evidenceMineId":"3302532","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|P02877|1950-01-01|C02468|1950-01-01|58590"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P02878","name":"Mack Energy Company"},"object":{"type":"mine","id":"3302532","name":"Coonville - Strip"},"validFrom":"1973-12-06","validTo":"1989-05-16","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|P02878|1973-12-06|1989-05-16"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C02469","name":"Mc Cort Michael B"},"object":{"type":"mine","id":"3302532","name":"Coonville - Strip"},"validFrom":"1973-12-06","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|C02469|1973-12-06|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C02469","name":"Mc Cort Michael B"},"object":{"type":"operator","id":"P02878","name":"Mack Energy Company"},"validFrom":"1973-12-06","validTo":"1989-05-16","current":false,"derived":true,"evidenceMineId":"3302532","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|P02878|1973-12-06|C02469|1973-12-06|58592"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P20326","name":"Darmac Combustion Inc"},"object":{"type":"mine","id":"3302532","name":"Coonville - Strip"},"validFrom":"1989-05-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|P20326|1989-05-17|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13860","name":"Mc Cort David J"},"object":{"type":"mine","id":"3302532","name":"Coonville - Strip"},"validFrom":"1989-05-17","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|C13860|1989-05-17|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13860","name":"Mc Cort David J"},"object":{"type":"operator","id":"P20326","name":"Darmac Combustion Inc"},"validFrom":"1989-05-17","validTo":null,"current":true,"derived":true,"evidenceMineId":"3302532","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3302532|P20326|1989-05-17|C13860|1989-05-17|91312"}}],"coverage":{"historyRecords":3,"edgeCount":9,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3302532","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"}}