Development of a Blockchain-Based Ad Listing Application

In today's time, ad-listing websites work as the main leads generator for businesses. Such websites are managed by a central authority called website admins. Because of the centralization, admins can change and remove some business information and manipulate the reviews and ratings to increase the benefits for other businesses. So, in this paper, we have developed a smart contract for an ad-listing website using Solidity on the Ethereal blockchain. Thus, Implementing a decentralized app architecture that uses Blockchain Technology. We have developed a decentralized web application that works on the Ethereal Ropsten test network and uses Infura platform as a virtual node. Virtual nodes provide the connection between our NodeJS app and the Blockchain, eliminating the need for running an Ethereal full node. By using such architecture, users don't need to sign in with a wallet extension or any Web3 component. From a user's perspective, the website is like any web app using a database. But, we had the advantage of utilizing the Blockchain test network for free as a data warehouse. Also, we calim that this app guarantees a more honest user experience because of the transparent nature of Blockchains.