{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of data security?","a":"Encryption Algorithms: Blockchain technology uses encryption algorithms (such  as SHA-256) to protect the privacy and security of data. Each participant has a private key and a public key; the private key is used to sign transaction records, while the public key is used to verify signatures. This encryption technology can effectively prevent unauthorized access and tampering with data."}]}],"pr":"a4b87442ae7372e1e9c9610036cd7157676599e816ab6d03652207c52ba8fa31"}