{"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":"4607600","name":"Mine #102"},"operator":{"type":"operator","id":"P22650","name":"Summersville Five-Block Coal Corp"},"controller":{"type":"controller","id":"C14997","name":"Mack Guy A"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C05321","name":"Tim Doug  Johnson"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1984-03-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|C05321|1984-03-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P15453","name":"Chloe Ridge Coal Company Inc"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1988-10-01","validTo":"1991-10-14","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P15453|1988-10-01|1991-10-14"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C05321","name":"Tim Doug  Johnson"},"object":{"type":"operator","id":"P15453","name":"Chloe Ridge Coal Company Inc"},"validFrom":"1988-10-01","validTo":"1991-10-14","current":false,"derived":true,"evidenceMineId":"4607600","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P15453|1988-10-01|C05321|1984-03-01|68390"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21700","name":"Summersville Five-Block Coal Corp"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1991-10-15","validTo":"1993-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P21700|1991-10-15|1993-01-17"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14517","name":"Johnson Danette B"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1991-10-15","validTo":"1993-01-17","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|C14517|1991-10-15|1993-01-17"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14517","name":"Johnson Danette B"},"object":{"type":"operator","id":"P21700","name":"Summersville Five-Block Coal Corp"},"validFrom":"1991-10-15","validTo":"1993-01-17","current":false,"derived":true,"evidenceMineId":"4607600","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P21700|1991-10-15|C14517|1991-10-15|93075"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22241","name":"Summersville Five Block Coal Corp"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1993-01-18","validTo":"1993-11-18","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P22241|1993-01-18|1993-11-18"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14791","name":"Trujillo Pat"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1993-01-18","validTo":"1994-03-15","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|C14791|1993-01-18|1994-03-15"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14791","name":"Trujillo Pat"},"object":{"type":"operator","id":"P22241","name":"Summersville Five Block Coal Corp"},"validFrom":"1993-01-18","validTo":"1993-11-18","current":false,"derived":true,"evidenceMineId":"4607600","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P22241|1993-01-18|C14791|1993-01-18|93902"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P22650","name":"Summersville Five-Block Coal Corp"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1993-11-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P22650|1993-11-19|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C14997","name":"Mack Guy A"},"object":{"type":"mine","id":"4607600","name":"Mine #102"},"validFrom":"1993-11-19","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|C14997|1993-11-19|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C14997","name":"Mack Guy A"},"object":{"type":"operator","id":"P22650","name":"Summersville Five-Block Coal Corp"},"validFrom":"1993-11-19","validTo":null,"current":true,"derived":true,"evidenceMineId":"4607600","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4607600|P22650|1993-11-19|C14997|1993-11-19|94421"}}],"coverage":{"historyRecords":4,"edgeCount":12,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4607600","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"}}