Arweave is an innovative decentralized permanent data storage network where users pay a one-time fee to secure lifelong storage services. Unlike other storage networks, Arweave uses a unique "blockweave" structure to ensure the long-term preservation of data. This article provides a detailed introduction to Arweave's technical architecture, growth trajectory, and the economic model of its native token AR. It also explores the AO project built on Arweave, a decentralized network aimed at overcoming the scalability limitations of on-chain computation.