A bootnode is a special type of node in a blockchain network that helps other nodes connect to the network. When a new node joins, it does not have existing information about the network or other nodes. Bootnodes serve as initial points of contact, providing critical information needed for formation and synchronization.Typically, bootnodes maintain a list of currently active nodes in the network. When a new node reaches out to a bootnode, it receives this list, allowing it to discover peers and start participating in the network. This is essential for establishing connections and data exchange.Bootnodes are often hardcoded within the software to ensure new nodes can find them easily. They play a vital role in maintaining the network’s health and stability by facilitating connections, especially during the initial stages of a node’s operation. By ensuring that new nodes can find their way into the network seamlessly, bootnodes contribute to the overall resilience and efficiency of the blockchain system.