{"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":"4405085","name":"No 3"},"operator":{"type":"operator","id":"P13796","name":"A & M Mining & Trucking"},"controller":{"type":"controller","id":"C00209","name":"Ely Arnold"},"source":{"datasetId":"msha-mines","observedAt":"2026-10-13T11:19:05.459773+00:00"}},"edges":[{"type":"controller_controls_mine","subject":{"type":"controller","id":"C01026","name":"Baker Ralph"},"object":{"type":"mine","id":"4405085","name":"No 3"},"validFrom":"1950-01-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405085|C01026|1950-01-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P01199","name":"Mason Coal Company Inc"},"object":{"type":"mine","id":"4405085","name":"No 3"},"validFrom":"1978-08-01","validTo":"1983-06-29","current":false,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405085|P01199|1978-08-01|1983-06-29"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C01026","name":"Baker Ralph"},"object":{"type":"operator","id":"P01199","name":"Mason Coal Company Inc"},"validFrom":"1978-08-01","validTo":"1983-06-29","current":false,"derived":true,"evidenceMineId":"4405085","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405085|P01199|1978-08-01|C01026|1950-01-01|51800"}},{"type":"controller_controls_mine","subject":{"type":"controller","id":"C00209","name":"Ely Arnold"},"object":{"type":"mine","id":"4405085","name":"No 3"},"validFrom":"1982-06-01","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405085|C00209|1982-06-01|"}},{"type":"operator_operates_mine","subject":{"type":"operator","id":"P13796","name":"A & M Mining & Trucking"},"object":{"type":"mine","id":"4405085","name":"No 3"},"validFrom":"1983-06-30","validTo":null,"current":true,"derived":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405085|P13796|1983-06-30|"}},{"type":"controller_controls_operator","subject":{"type":"controller","id":"C00209","name":"Ely Arnold"},"object":{"type":"operator","id":"P13796","name":"A & M Mining & Trucking"},"validFrom":"1983-06-30","validTo":null,"current":true,"derived":true,"evidenceMineId":"4405085","intervalAnomaly":false,"source":{"datasetId":"msha-controller-operator-history","observedAt":"2026-10-13T11:19:05.459773+00:00","recordKey":"4405085|P13796|1983-06-30|C00209|1982-06-01|44871"}}],"coverage":{"historyRecords":2,"edgeCount":6,"intervalAnomalies":0,"sourceDatasetId":"msha-controller-operator-history"}},"meta":{"mineId":"4405085","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"}}