{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the characteristics of the economic model of blockchain?","a":"Token economy: The blockchain economic model introduces tokens  (such as Bitcoin) as a medium of exchange and value storage, enabling borderless transactions and promoting the development"}]}],"pr":"d668c59449a8cf8f257c3ca56e09df4388c4687578ba413b80c062d10bc27031"}