{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the impact of blockchain on society and economy?","a":"Lowering transaction costs: Blockchain technology reduces the cost of information verification through its decentralized feature, thereby improving information quality. Its interactive witness mechanism requires each participant to verify information at certain stages of the  transaction, which reduces the generation of erroneous information and enhances the reliability of the entire transaction process."}]}],"pr":"3f7a3e1babb0e8314038e487cac2f9e3423d1d22ca93c6cd990a46f799f47022"}