A prominent part of Bitcoin's decentralized network is its nodes. Nodes are responsible for a very significant role within the network. These nodes make sure the network functions properly. They are essentially computers that run the Bitcoin network. A diverse, distinct set of nodes run the network. These nodes are responsible for the network's proper operation and maintenance of its integrity.
It's worth noting that Bitcoin nodes are not the same as the consensus mechanism. The nodes check to determine genuine transactions before the consensus mechanism kicks in.
There are four different classifications of nodes on the Bitcoin blockchain: full nodes, supernodes, light nodes, and mining nodes.
Full nodes store copies of the blockchain ledger. They make the network decentralized and serve as a reference point for verifying the blockchain's history.
Supernodes are a sort of full nodes that serve as a communication hub between full nodes and other network nodes.
Light nodes do not store the complete blockchain. They are also known as thin nodes since they require comparatively less download and storage capacity than the full nodes. They only download block header data that summarize the block from the Bitcoin blockchain.
Mining nodes compete to solve complex cryptographic puzzles to generate blocks that attach to the blockchain. As a result, mining nodes use a technique known as mining to verify the validity of new blocks.
Running a full node does not provide any real monetary benefits. It is an investment with other returns. Running and making transactions with a Bitcoin node that you own improves security. It will prevent the exposure of your private keys and remove the need to use a block explorer that could reveal your IP address. Investments in these nodes bring you this type of sovereignty. Running a full node is particularly crucial for those who make many bitcoin transactions per day.
Although the entire Bitcoin network can technically run on only one node, albeit a powerful one, maintaining your node is also advantageous. It contributes to the security of the blockchain network. Having more nodes will only make the network more decentralized and difficult to hack.