{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the advantages of blockchain technology?","a":"Remove middlemen, reduce operating costs: Due to the decentralized design of blockchain, there is no need for centralized intermediary institutions  for credit endorsement, which reduces operating costs."}]}],"pr":"2fb19a9ab53b5f7a19368d1c74a714d98dc2e3cfbe4c44cb47d6b3258ac33116"}