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A significant number of digital marketers use unethical marketing methods that violate Search Engine Optimization guidelines, with the objective of deceiving engines into displaying a specific website as the top result. The practice of fake comments constitutes a violation of Search Engine Optimization policies and is directly impeding market transparency. In addition, the absence of established standards between search engines, evaluation platforms and other trusted agencies makes exploitation easy. Therefore, in order to ensure fair competition among digital businesses, we propose a decentralized system for detecting fake comments, leveraging Blockchain technology for verification. The implementation of smart contracts as self-executing agreements will be achieved by utilizing the Ethereum network and the Truffle Suite. The Ethereum smart contracts will immutably record every comment as a transaction, eliminating any central authority. When a comment is flagged as suspicious, a digital business can trigger a verification request. Stakeholders or reviewers then vote on authenticity. Smart contracts collect these votes and issue a definitive verdict on whether the comment is fake.
