{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology solve the problem of hacker attacks in large-scale transactions?","a":"Tamper-proof: Blockchain adopts encryption algorithms to ensure that once data is recorded in a block, it is difficult to tamper with. Even if hackers successfully attack a blockchain network, they will still not be  able to modify the existing data."}]}],"pr":"44625fc2e0a15a31d77d77d10a25fde920aa6511529fede1b8133ea3bd6815d8"}