{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What is the role of nodes in a blockchain?","a":"Decentralization: Nodes do not have centralized  management agencies and servers; all nodes have equal status and work together to maintain the entire network, achieving decentralization."}]}],"pr":"0f3d918bf4d90866af9c00ac090964bafbf19e411c483a3dd960c0174bc55a72"}