{"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":"Centralized Oracle Based on Centralized Services: This type of Oracle usually cooperates with third-party data providers (such as exchanges, market data providers, etc.) to obtain real-time price data. The centralized Oracle retrieves data from these providers through API interfaces or other protocols and synchronizes it with the blockchain network. The  advantage of this method is that the data source is reliable, but it may lead to data latency and limitations of a single data source."}]}],"pr":"fd3b8f364f6b319e67cdccb571c5470b3a589d1dfdfe8ee7dc17d0e77b031794"}