{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of hardware wallets in blockchain?","a":"Offline operation: Hardware wallets are in an offline state for  most of the time, therefore they are less susceptible to network attacks. When users perform transactions, they just need to connect the hardware wallet to the internet for brief online operations, thereby reducing the risk of network attacks."}]}],"pr":"ac90e80e7fb7ec5b1df315ebd8c42552a53397c443cde71a6b8de4a51b6a9adb"}