{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the data synchronization methods of blockchain nodes?","a":"Centralized synchronization: In this synchronization method, nodes in the blockchain network regularly send data to a centralized server or multiple servers. These  servers are responsible for storing and maintaining the data of the blockchain network, thereby achieving data synchronization between nodes. This synchronization method"}]}],"pr":"6eac87b4708891ede8036db643e81063b51712cce60eac052e7fc92944dbfe73"}