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Crypto
Node
A computer or device that runs blockchain software, stores the full history of transactions, and helps keep the network running.
Nodes talk to each other constantly to stay in sync. Full nodes verify everything themselves, which makes the whole network super hard to cheat or shut down. Without enough nodes, the blockchain wouldn't work.It's like one of the thousands of volunteers in a giant neighborhood watch program — each one keeps a copy of the rules and watches what's happening.
Real world: Your laptop or a powerful server can run as a Bitcoin node, downloading the entire blockchain and checking every new transaction to make sure it's legit.
💡 Running your own node is one of the best ways to support crypto — it's free, private, and helps keep the network strong and decentralized.