{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the risks involved in the blockchain upgrading process?","a":"Changes in regulations or policies may pose  risks to the upgrade process and the overall development of the blockchain."}]}],"pr":"4f8b25a56e1d280819b10bcf87a8fd7eeb19cbaf1a9322f1d548d618049e9f2e"}