{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the types of nodes in a blockchain network?","a":"Public chain nodes: Public chains refer to blockchain systems where any node can join or exit at any time, such as  Bitcoin and Ethereum. These nodes possess complete blockchain data, enabling them to verify, broadcast, and record new transaction information, as well as ensure synchronization across the entire network."}]}],"pr":"5e669f4488c97bade3ec44caa1decbb19583270209a533338ad4462e621c36ae"}