{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain ensure the privacy and security of user transactions?","a":"Decentralized network: Blockchain adopts a decentralized network architecture, where data storage and transmission are no longer dependent on a single central node, but are distributed across multiple nodes. This decentralized feature can  effectively prevent single-point failures, enhance the system's resistance to attacks, and reduce the risk of hacking."}]}],"pr":"a2e85dba6b51749b03c969b6256d3bcf7483f6d713fefd4c3797ac20c3cfe2f2"}