{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can blockchain technology be applied to bill trading and settlement?","a":"Establishing a public ledger: Through the consensus algorithm of blockchain technology, the information of  bill issuance, trading, and settlement is recorded in the block, forming an immutable and traceable public ledger. Each node participating in the bill trading can obtain a complete backup of the blockchain, ensuring the authenticity and transparency of transaction data."}]}],"pr":"76cf8ab468f310a652438bc4e0c645a6e48b9c549896dcfa0736afd1a597916b"}