{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How to import and export transaction tracking data in blockchain nodes?","a":"Data Collection:  Firstly, obtain transaction data from the blockchain network. This can be achieved through blockchain browsers, API interfaces, or other data sources."}]}],"pr":"ca3453608389b05c2259f70dfa5280dbd3c5e2dafe946a9ad14e2e1f357eb4c9"}