Project

Online reviews immutability tool using blockchain technology

Project (M.S., Computer Science)--California State University, Sacramento, 2018.

Online reviews are highly influential, with consumers preferring the advice of other consumers rather than information provided through advertisements. Hence, review consistency and trustworthiness became an urgent need and a necessity for both individuals and businesses.
 The project aim is to provide a platform for online users to write, search, and view the reviews. This is done by developing a decentralized tool which prevents online reviews from being changed or modified after post submission. Another important feature of this tool is to address spam issues with the review filtration methods. 
 A unique feature of the tool is the use of the merkle tree concept for secure verification of reviews. By adding metamask browser extension on user system, users are enabled to utilize the services without running full ethereum node. This tool is implemented using solidity and blockchain. 
 The blockchain stores the user reviews which will make them immutable. Also, reviews 
 are hashed, and they can be verified if anything is altered. The transparency of blockchain technology helps reduce suspicion, as its integrity is monitored and maintained by immutable blocks.

Online reviews are highly influential, with consumers preferring the advice of other consumers rather than information provided through advertisements. Hence, review consistency and trustworthiness became an urgent need and a necessity for both individuals and businesses. The project aim is to provide a platform for online users to write, search, and view the reviews. This is done by developing a decentralized tool which prevents online reviews from being changed or modified after post submission. Another important feature of this tool is to address spam issues with the review filtration methods. A unique feature of the tool is the use of the merkle tree concept for secure verification of reviews. By adding metamask browser extension on user system, users are enabled to utilize the services without running full ethereum node. This tool is implemented using solidity and blockchain. The blockchain stores the user reviews which will make them immutable. Also, reviews are hashed, and they can be verified if anything is altered. The transparency of blockchain technology helps reduce suspicion, as its integrity is monitored and maintained by immutable blocks.

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