{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain achieve decentralized storage?","a":"Data encryption: Blockchain uses encryption algorithms  (such as SHA-256) to encrypt data, ensuring the security of the data. Even if the data on a certain node is tampered with, other nodes can identify and reject incorrect data by comparing data consistency."}]}],"pr":"f3f9973b267de9701794e9ad7b6ebd0ff507ce066732b76acd4785fe558527c3"}