Blockchain-Based Decentralized Application: A Survey

Blockchain-based decentralized applications (DApp) draw more attention with the increasing development and wide application of blockchain technologies. A wealth funds are invested into crowd-funding various types DApp. As reported in August 2022, there than 5,000 DApps 1.67 million daily Unique Active Wallets (users). However, definition, architectures, classifications still not cleared up till now. This survey aims to provide a comprehensive overview for further research. First, definitions typical architectures presented. Then we collect 3,118 popular categorize them different types, summarize their advantages challenges. Finally, an recent research problems from perspectives economics, security, performance then figure out promising opportunities future.