{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"What are the roles of nodes in a blockchain network?","a":"Information transmission: Nodes communicate with each other using a peer-to-peer (P2P) communication protocol to transmit information, broadcasting transactions throughout the entire network for other  nodes to validate and confirm."}]}],"pr":"bbb9750750b48b076182549fc798b0fb093195e1b0532316736a5e706c789c8d"}