{"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":"Decentralization: Blockchain uses distributed  node consensus algorithms to generate and update data, eliminating centralized control and thereby reducing the risk of network attacks. Hackers cannot modify the data on the blockchain by attacking a single node because changes to the data require the approval of more than half of the nodes on the network."}]}],"pr":"2471f5e72ca05a314fc7533e68b56d229afe3ebe323e22594f73756de2345366"}