{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the types of exchanges in the blockchain industry?","a":"Centralized Exchange (CEX): A centralized exchange is a traditional digital currency trading platform where users can trade digital currencies. These exchanges are usually operated by a centralized organization or  company, such as Binance, Huobi, and Coinbase."}]}],"pr":"6d7c93553892465206f7c4ed0556c07ed1e6cfc8ea2a2e6d82f6247f5603cdac"}