{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain be used to address the security issues of file system wallets?","a":"Immutable data: Once data is recorded on the blockchain, it cannot be  altered or deleted. This ensures that the contents of the file system wallet remain"}]}],"pr":"de77609802168493556db96ceb063791a4a808afd200bcfafe2c89a4f65ac0fb"}