An improved P2P file system scheme based on IPFS and Blockchain

IPFS [1] is a peer-to-peer version controlled filesystem that synthesizes learnings from many previous successful systems. IPFS combines a distributed Hash table, an incentivized block exchange, and a self-certifying namespace [1]. IPFS is a peer-to-peer hypermedia protocol to make the web faster, safer, and more open. According to the characteristics of IPFS, we propose an improved P2P file system scheme based on IPFS and Blockchain. We address the high-throughput problem for individual users in IPFS by introducing the role of content service providers. Consider data reliability and availability, storage overhead and other issues for service providers, we provide a novel zigzag-based storage model to improve the block storage model that IPFS provides. Moreover, we introduce blockchain to combine IPFS with this storage model. According to analysis, this proposed scheme can effectively solve the above problems.