{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How can the existing issue list in blockchain be used to generate new issues?","a":"First, carry out in-depth analysis on the existing problems in the blockchain to  understand the essence, causes, solutions of the problems."}]}],"pr":"84ff3991b162afc5d5c4dacb72bf1fdf7d4e6ffba955bed6fbb041b2714c3b84"}