{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the best practices for operating a blockchain?","a":"Ensure data security:  Encrypt data in the blockchain using encryption algorithms (such as SHA-256) to protect data from being tampered with. Meanwhile, adopt multi-signature technology to provide secure and reliable verification of transactions in the blockchain network."}]}],"pr":"00cf9701c62d0e54b1839e50e337754750dc00436194638921ee04de46c07071"}