{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the execution of smart contracts in blockchain account interactions ensure the avoidance of erroneous executions and malicious operations?","a":"Data immutability: Once transaction information is  recorded on the blockchain, it cannot be tampered with. This is because each block contains the hash value of the previous block, forming an immutable chain structure. This effectively prevents tampering with the data."}]}],"pr":"8694c30eb88cacf99ce4c1fe25a316348bd7f3200d3265c85b8e8ba05a7ecb7a"}