{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of a wallet in a blockchain?","a":"Store and manage digital assets: As  a digital asset management tool for users, wallets can store various cryptocurrencies, tokens, and other digital assets, making it convenient for users to conduct transactions and use them at any time."}]}],"pr":"4274a860460fd33a5a4c7ea2c5171eb1404a81729271989b479021eb8c20403e"}