A Node Registry is a system that keeps track of all active nodes within a network. Nodes are individual computers that participate in the operation of a blockchain by validating and relaying transactions.The Node Registry records information such as each node’s identity, operational status, and performance metrics. This information helps ensure that only legitimate and functioning nodes are participating, which is crucial for maintaining the security and efficiency of the network.By having an updated registry, network participants can make informed decisions about which nodes to communicate with or rely on. This can improve transaction speed and reduce the likelihood of interacting with malicious nodes. In summary, the Node Registry enhances the overall reliability, security, and efficiency of a blockchain network by maintaining a comprehensive list of its operating nodes.