{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of a blockchain node?","a":"Decentralization: Nodes have no centralized management authority or server; all nodes have equal status and work together to maintain the entire  network. This decentralized attribute makes the blockchain system more stable, secure, and transparent."}]}],"pr":"8e17a88d003086912beb56b50261f73a9a9c290f46e6496d8d58c79c2a215e44"}