As a representative of distributed ledger technology (DLT), blockchain holds enormous potential to reform cyberspace architecture by revolutionizing information storage, circulation, and exchange through decentralization, transparency, and de-identification. This blockchain-driven information revolution has significant implications for legal and financial frameworks, providing tools for brokerage, finance, legal enforcement, and regulation. Ordinary participants can become traders, miners, retailers, and customers simultaneously, breaking the market barriers and reducing the information gap within the community, as all records are visible to all participants. This study explores the implications of the blockchain-driven information revolution from legal and financial perspectives. It first investigates the legal implications of blockchain, examining the notion of trust and a new understanding of electronic evidence and the free flow of data. The study then uses blockchain in finance as a case study to illustrate its practical applications, discussing emerging financial models, corporate governance, sharing mechanisms, and the influence of blockchain on central banks and digital currencies. The research concludes that blockchain is much more than a technology; it represents a community, acting as a source of trust and a new architecture for cyberspace.