What is a Bitcoin node
A Bitcoin node is a computer that runs Bitcoin software, connecting to the Bitcoin network and acting as a participant by validating and relaying transactions, essentially ensuring the integrity and consensus of the blockchain by verifying that each transaction adheres to the network's rules; in simpler terms, it's a computer that stores a complete copy of the Bitcoin blockchain and helps maintain its accuracy by checking every transaction against the network's rules.
Key points about Bitcoin nodes:
Function: They verify the validity of new transactions and blocks before adding them to the blockchain.
Decentralization: By having many nodes spread across the network, there is no single point of control, making Bitcoin decentralized.
Types of nodes:
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Full node: Downloads and stores the entire blockchain, validating every transaction.
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Lightweight node: Relies on full nodes to verify transactions, requiring less storage space.
Importance: Running a Bitcoin node allows users to independently verify the blockchain and contribute to the network's security.