{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are some common violation behaviors in the consensus rules of blockchain?","a":"Double spending: In a blockchain network, malicious nodes may try to send the same transaction information to different nodes, thereby creating the same transaction records  on multiple nodes at the same time, leading to the problem of double spending."}]}],"pr":"fddfd538383b2bf4a83e4c69befd88a661bb2a1ad9ea6330899fcdd14c9db9e0"}