{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are some typical use cases of smart contracts in the blockchain?","a":"Financial field: Intelligent contracts can be used for issuing and  trading cryptocurrencies, digital assets, and providing decentralized financial (DeFi) services such as lending, payment, and exchange."}]}],"pr":"90c19e5383e8023b25f127e324d3df9ad1e26618031b0d752ddc36bb23dd8217"}