DMChain is a decentralized digital advertising system, which aims to use blockchain and artificial intelligence technology to avoid data fraud, weaken intermediary costs, and build more transparent and efficient transaction channels for advertising companies. Trust issues between advertisers and media owners, and provide advertisers with clearer market goals, as well as trackable and quantifiable advertising effects. As a value carrier within the ecosystem, all transactions within the DMChain system are settled with ADE. The establishment of DMChain ecology will benefit all different participants in the advertising industry and truly reshape the value of advertising.