 This study analyzes the use of blockchain technology in monitoring Internet of Things, IOPE systems, specifically in smart city applications, to improve data processing unit security and maximize confidence levels in monitoring units. The proposed method integrates a blockchain technique with a neurofuzzy algorithm, resulting in an IoT system model that is implemented with minimum energy consumption and completes 93% of tasks with improved security for about 90%. This article was authored by Shithart Silvarajan, Harrah Prasath Menoran, Celestina Wendy, and others.