{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of hardware wallets compared to file system wallets and paper wallets in the context of blockchain?","a":"Security: Hardware wallets utilize encryption technology and offline storage, providing better protection for the security of user assets. Compared to file system wallets and paper wallets, hardware wallets have  more advantages in preventing hacker attacks and data breaches."}]}],"pr":"e0a9793b4da94f6da65416a705377d33d5273074d3ac6bad963fbb0779f323d6"}