{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the purpose of the transaction engine in a blockchain?","a":"The transaction engine in blockchain is mainly used to process and execute transactions in the blockchain network. It is responsible for validating, confirming, and recording transaction data, and storing this data in the blockchain. The  transaction engine ensures consensus among nodes in the network through a consensus mechanism, thereby ensuring the security and transparency of the blockchain. In addition, the transaction engine can also execute smart contracts. Smart contracts are pieces of code that run on the blockchain and automatically execute under specific conditions, handling and controlling transactions on the blockchain. The transaction engine plays a crucial role in the blockchain network, ensuring secure, efficient, and reliable transactions."}]}],"pr":"0a0ad5d57b6e09c7e10a107d5d0d64363cbad7c3eeea09d3848db33dbf056666"}