{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the security of blockchain prevent risks such as information tampering and double spending?","a":"Decentralization: Blockchain adopts distributed calculation and storage, and there is no centralized hardware or administrative organization. The rights and obligations of any node are equal, and the data in the  system is not controlled by a single node, but is distributed on multiple nodes throughout the network. This decentralized design makes it extremely difficult to tamper with information in the blockchain."}]}],"pr":"4a8d4e135e50058daa520fe48ffd1c502c84ddba4f4bebecde8bb43ed5281faa"}