![Crypto Terms Glossary: What is Node? Crypto Terms Glossary: What is Node?](/img/200/967/what-is-node-sm.webp)
In blockchain tech, a node is a computer that is connected to a blockchain network that serves a number of purposes essential to the maintenance of a distributed system. Some nodes validate transactions, while others observe activity on the blockchain. Nodal network structure is also a key aspect of maintaining security on a blockchain network.
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