{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the application scenarios of the Substrate development framework?","a":"Public chain development: Substrate can help developers build high-performance, secure public blockchain systems to meet the  development needs of decentralized applications (DApps)."}]}],"pr":"9c70e22f0f442f3345a00aa48a6285484dd1246d6e492833faa3832dffe6859f"}