{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to choose between file system wallet and paper wallet in a blockchain?","a":"Storage capacity: The storage capacity of file system wallets is usually higher than  that of paper wallets, allowing users to store more cryptocurrency assets."}]}],"pr":"924a6c7078133bf2dc07856214ab05e3764c6ac5aa83e6289278342a50d4857c"}