โœ… Lesson 94: What Is a Node in Blockchain? ๐Ÿ–ฅ๏ธ๐ŸŒ

Youโ€™ve heard the word โ€œnodeโ€ a lot in cryptoโ€ฆ

But what does it actually mean โ€” and why does it matter?

Let me break it down in a simple way ๐Ÿ‘‡

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๐Ÿ” So, Whatโ€™s a Node?

A node is just a computer that connects to the blockchain network.

It keeps a copy of the entire ledger (yes, the whole thing!) and helps verify and share data.

Nodes are the reason blockchain is decentralized โ€” instead of one central server, the network is powered by thousands of nodes all over the world.

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๐Ÿง  What Do Nodes Actually Do?

โœ… Store a full copy of the blockchain

โœ… Check and validate transactions

โœ… Share info with other nodes to keep the network running

โœ… Help secure the chain against attacks

Some nodes also mine or stake, depending on the type of blockchain.

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๐Ÿ” Why Are Nodes Important?

Without nodes, thereโ€™s no blockchain.

They keep everything:

๐Ÿ’ช Secure

๐Ÿงฉ Synced

๐Ÿ“ข Transparent

๐ŸŒ Global

More nodes = more security = more trust.

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๐Ÿ’ก Think of nodes as the guardians of the blockchain.

They donโ€™t just watch โ€” they keep the whole system alive.

Follow me to keep learning crypto and blockchain the easy way โ€” no fluff, just facts.

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