Nodes in a cryptocurrency network play a crucial role in maintaining the decentralized nature of the network. They are essentially individual computers or servers that participate in validating and relaying transactions on the network. Nodes store a copy of the blockchain, verify transactions, and help secure the network by reaching consensus on the order and validity of transactions. Additionally, nodes can also participate in mining, where they compete to solve complex mathematical problems in order to add new blocks to the blockchain and receive rewards. Overall, nodes are essential for the functioning and security of a cryptocurrency network.
