{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain?","a":"ower transaction costs: Blockchain technology can reduce intermediary links, lower transaction costs, and improve transaction efficiency."}]}],"pr":"c86307d6b02b83c55b074f805d42138a127dbdf3268ad3012e9bf36efee1c1e4"}