BlockchainIntermediate#Infrastructure#Network
Node
N
Definition
A computer that participates in a blockchain network by storing, validating, and broadcasting transaction data.
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Concept Diagram
Key Takeaways
1
Nodes are computers that store, validate, and broadcast blockchain transaction data
2
Full nodes store the entire blockchain history and independently verify every transaction
3
Running your own node is the only way to truly verify not trust
4
More nodes means more security and resilience for the network
Practical Example
Running a Bitcoin full node on a Raspberry Pi costs about $50 in hardware - it independently verifies every BTC transaction without trusting any third party.
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Related Terms
Blockchain
Base Layer (Layer 1)The foundational blockchain architecture (e.g., Bitcoin, Ethereum) that provides security and finality for the entire network.
Blockchain
Consensus MechanismA fault-tolerant process used in blockchain systems to achieve the necessary agreement on a single data value or network state.
Blockchain
MiningThe process of verifying complex mathematical problems to secure a blockchain network and earn newly issued tokens.
Blockchain
OracleA data feed that connects non-blockchain data (e.g., asset prices, weather) to smart contracts for execution.
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