{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are smart contracts in blockchain?","a":"Smart contracts are a type of computer program that runs on a blockchain network, designed to execute contract terms and automate transactions. Based on decentralized, trustless, autonomous, and tamper-proof characteristics, smart contracts enable transactions to be completed without any underlying trust or supervision from a third-party authority. They can be applied to various fields,  such as finance, management, healthcare, and the Internet of Things. The concept of smart contracts was initially proposed by computer scientist and cryptography expert Nick Szabo in 1993, and he published a paper on smart contracts in 1994."}]}],"pr":"2ecf80dd91359ac8685127adb26296638f07ffb1c3881714a546c5092675dbe9"}