{"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":"2026-10-17T05:35:58.500035+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":"4607018","name":"Big Mountain No 3 Mine"},"operator":{"type":"operator","id":"P21511","name":"New King Fuel Company Inc"},"controller":{"type":"controller","id":"C13984","name":"Lyons Ray"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-17T05:35:58.500035+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C08342","name":"Keenan Darrell R"},"object":{"type":"mine","id":"4607018","name":"Big Mountain No 3 Mine"},"validFrom":"1980-08-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4607018|C08342|1980-08-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P11056","name":"First Big Mountain Mining Company Inc"},"object":{"type":"mine","id":"4607018","name":"Big Mountain No 3 Mine"},"validFrom":"1985-10-01","validTo":"1991-07-21","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4607018|P11056|1985-10-01|1991-07-21"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C08342","name":"Keenan Darrell R"},"object":{"type":"operator","id":"P11056","name":"First Big Mountain Mining Company Inc"},"validFrom":"1985-10-01","validTo":"1991-07-21","current":false,"derived":true,"evidenceMineId":"4607018","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4607018|P11056|1985-10-01|C08342|1980-08-01|77087"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P21511","name":"New King Fuel Company Inc"},"object":{"type":"mine","id":"4607018","name":"Big Mountain No 3 Mine"},"validFrom":"1991-07-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4607018|P21511|1991-07-22|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C13984","name":"Lyons Ray"},"object":{"type":"mine","id":"4607018","name":"Big Mountain No 3 Mine"},"validFrom":"1991-07-22","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4607018|C13984|1991-07-22|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C13984","name":"Lyons Ray"},"object":{"type":"operator","id":"P21511","name":"New King Fuel Company Inc"},"validFrom":"1991-07-22","validTo":null,"current":true,"derived":true,"evidenceMineId":"4607018","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-17T05:35:58.500035+00:00","recordKey":"4607018|P21511|1991-07-22|C13984|1991-07-22|91655"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4607018","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873,"relationshipSemantics":"valid time; null validTo means current or open-ended in the source"}}