One of the key aspects of decentralised networks is the so-called nodes. A node is a computer program that monitors the transactions of the blockchain and is connected to other nodes in the network. Without nodes, the network would not function.
A full node is a subset of a node. It has a complete copy of the entire blockchain and regularly synchronises with it. These nodes continuously validate current transactions and enforce the consensus rules of the blockchain.
Different types of nodes
Operating a node helps improve the security, reliability and decentralisation of the network. It provides a complete picture of the blockchain, allowing you to legitimise your own transactions and contribute to the consensus process. The more nodes there are, the more decentralised and secure the network becomes.
The requirements for running a node vary from blockchain to blockchain. Several basic factors need to be considered, such as system requirements, network support, and other specific features. Since the architecture and consensus mechanism (e.g. Proof of Work or Proof of Stake) of blockchains vary so will with types, name, and requirements of their nodes.
Why should you run a full node?
If you're a supporter of Bitcoin and want to contribute to the expansion and success of the network you can do so by setting up a full node. The benefits are:
- Contribute to the growth of the Bitcoin network
Each additional node contributes to the strength and decentralisation of the Bitcoin network - Have a secure Bitcoin wallet
Use the the full node to store you bitcoin in a decnetralised manner - Grants you more privacy
3rd party services are not aware which addresses belong to you as an individual - Don’t put your trust in 3rd parties
Take responsibility into your own hands, if you don't operate your own node, you still place trust in someone else running a node to promptly validate your transactions
