{"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":"3607652","name":"Mcnatt Strip"},"operator":{"type":"operator","id":"P16827","name":"Greene County Coal Company"},"controller":{"type":"controller","id":"C11907","name":"Valli August"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P16827","name":"Greene County Coal Company"},"object":{"type":"mine","id":"3607652","name":"Mcnatt Strip"},"validFrom":"1985-01-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607652|P16827|1985-01-07|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C11907","name":"Valli August"},"object":{"type":"mine","id":"3607652","name":"Mcnatt Strip"},"validFrom":"1985-01-07","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607652|C11907|1985-01-07|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C11907","name":"Valli August"},"object":{"type":"operator","id":"P16827","name":"Greene County Coal Company"},"validFrom":"1985-01-07","validTo":null,"current":true,"derived":true,"evidenceMineId":"3607652","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"3607652|P16827|1985-01-07|C11907|1985-01-07|85652"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"3607652","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"}}