{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"As a distributed ledger, what are the advantages of blockchain?","a":"Data consistency: Through consensus mechanisms, blockchain  can ensure that all nodes in the network jointly maintain the same ledger, ensuring data consistency."}]}],"pr":"fc995b6b090a176d1d21a25e4473706d11398b1008aee3f9ce71c6eda8486d4f"}