{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages and disadvantages of consensus mechanisms in blockchain?","a":"Anti-tampering: The consensus mechanism makes it difficult to tamper with data once it  is recorded in the blockchain, ensuring the authenticity and credibility of the data."}]}],"pr":"cf8da4ccf595e459ba9a745a463094d3741a6aaaa262a52d9ee43d32f8677c2f"}