{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the impact of blockchain on system security?","a":"Decentralization: Blockchain adopts a decentralized network architecture, where data storage and processing are distributed across a large number of nodes, without a single central node or  administrative body. This design makes the blockchain system less vulnerable to hacker attacks because attackers need to break into more than half of the nodes to modify the data, which is virtually impossible in practice."}]}],"pr":"1247695b2c2d5b8f2a7ba932d9087946b1802329174ff2e760ac12984d5757cd"}