ADX, also known as AdEx, is a decentralized advertising exchange built on the Ethereum blockchain. It aims to solve the problems of traditional online advertising, such as fraud, lack of transparency, and middlemen taking a large cut of the profits. Advertisers can use the platform to create and manage their campaigns, while publishers can monetize their content by displaying ads. The use of blockchain technology ensures that all transactions are transparent and secure, and eliminates the need for intermediaries. ADX tokens are used to pay for advertising space and to incentivize users to participate in the network.

One of the key features of AdEx is its focus on user privacy. The platform does not collect any personal data from users, and all transactions are anonymous. This is in contrast to traditional online advertising, where users are often tracked and their data is sold to advertisers without their consent. AdEx also uses smart contracts to ensure that advertisers only pay for ads that are actually displayed, and that publishers are paid fairly for their content. Overall, AdEx has the potential to revolutionize the online advertising industry by creating a more transparent and fair system for all parties involved.