{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology achieve decentralized data storage?","a":"Distributed data storage: Blockchain adopts a peer-to-peer  network architecture, with data stored on multiple nodes, each of which saves the complete ledger data. This distributed storage method avoids the risks brought by centralized storage, and improves the security and reliability of data."}]}],"pr":"61aadccf3e7a71e04dc6366873721b00a084a58605ba06caf37fe8553ca94d47"}