{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the preparatory steps required before performing version verification on a blockchain?","a":"Understand the basic concepts of blockchain: Firstly, you need to grasp the principles, technical architecture, and basic terms of blockchain,  such as blocks, chains, consensus algorithms, encryption technology, etc."}]}],"pr":"7ce746193ba7e557a719f494343c4d83202ad92effbafce2c1565f8c07bf51bf"}