Adrealm aims to rebuild the digital advertising ecosystem and cultivate a self-sustaining open ecosystem for all participants to achieve advertising efficiency. Built on ERC-20 standard of the Ethereum platform, Adrealm connects advertisers, service providers, content publishers, developers etc on its decentralized public ledger ensuring privacy and no third-party management of data. Thanks to its three-tier architecture made of an on-chain layer, off-chain layer, and a service layer, speed and efficiency can be guaranteed and the industry pain-points such as fraud, low-quality ads, and data leakage can be overcome. Adrealm relies on a particular consensus mechanism called Proof of Valid Traffic (PoVT) that makes high-quality ads and traffic the fundamental criteria for the operational success of transactions.