{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to ensure the validity of a blockchain account?","a":"Distributed ledger: Blockchain stores data in the form of a distributed ledger, with high decentralization, making it difficult to tamper with, thereby ensuring the consistency and  reliability of account information."}]}],"pr":"519530e2dbc84e1dc27ec2f9bbea20a9b59c0d457ca808a63f1efe12e8b81533"}