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Decentralized Storage & Distribution: BitTorrent & IPFS
This lecture covers the goals and challenges of decentralized storage and distribution, focusing on BitTorrent and IPFS. It discusses building BitTorrent specifications, sub-problems like advertising files and finding peers, and ensuring integrity through chunking and hash trees. The lecture also explores bootstrapping, publishing new content, performance, and incentives in BitTorrent. Additionally, it delves into IPFS, a decentralized file system inspired by various technologies, and its unique features like representing files and directories in a DHT, versioning, naming mutable data, and CRDTs. The shift towards Local-First Software is highlighted, emphasizing tools like Conflict-Free Replicated Data Types (CRDTs) and G-Counter CRDT specifications for achieving offline functionality and eventual consistency.
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