{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does the Oracle module in blockchain interact with external sources to obtain price data?","a":"The Oracle module in  blockchain obtains price data from external sources through specific technologies and protocols. Oracle modules can be divided into two categories: centralized Oracle based on centralized services, and decentralized Oracle based on decentralized networks."}]}],"pr":"2cac468492e730de820e00a42d91f16ea8ec9a8ae45fef5079264a366ecfb519"}