{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"The transaction in a blockchain must contain which elements?","a":"The transactions in a blockchain must contain the following elements:\\n\\n1. Parties involved in the transaction: The main participants in the transaction, namely the sender and the receiver. \\n2. Transaction amount: The currency amount of the transaction. \\n3. Transaction information: Relevant descriptions and data of the transaction, such as product information, service information, etc. \\n4. Timestamp: The transaction timestamp, used to ensure the transaction order. \\n5. Signature: The sender's signature on the transaction information, used to  verify the authenticity and integrity of the transaction. \\n6. Consensus mechanism: An algorithm that ensures nodes in the blockchain network reach a consensus on transactions. \\n7. Transaction confirmation"}]}],"pr":"5ef7fcb5285293deb5c35b754d0416f7cceb9acbba994edab1ff6b5f93fb3d83"}