{"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":"1508445","name":"No 1 Strip"},"operator":{"type":"operator","id":"P00951","name":"Little King Coal Mining & Leasing Company"},"controller":{"type":"controller","id":"C00795","name":"Desalvo Russell"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"operator_operates_mine","subject":{"type":"operator","id":"P00951","name":"Little King Coal Mining & Leasing Company"},"object":{"type":"mine","id":"1508445","name":"No 1 Strip"},"validFrom":"1975-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508445|P00951|1975-05-01|"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00795","name":"Desalvo Russell"},"object":{"type":"mine","id":"1508445","name":"No 1 Strip"},"validFrom":"1975-05-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508445|C00795|1975-05-01|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00795","name":"Desalvo Russell"},"object":{"type":"operator","id":"P00951","name":"Little King Coal Mining & Leasing Company"},"validFrom":"1975-05-01","validTo":null,"current":true,"derived":true,"evidenceMineId":"1508445","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"1508445|P00951|1975-05-01|C00795|1975-05-01|50091"}}],"coverage":{"historyRecords":1,"edgeCount":3,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"1508445","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"}}