{"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":"Convenience: File system wallets are more convenient, as they can be accessed and managed anytime, anywhere, through mobile  devices or computers. Paper wallets require storing private keys on physical cards or papers, making their management and usage relatively troublesome."}]}],"pr":"dc1a559e5baa9b82a44edc981b0b29502642796839b164283e92277ae60762c2"}