Blockchain & Cryptocurrency Glossary

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Full Node Wallet

1 min read
Pronunciation
[fool nohd woll-it]
Analogy
A full node wallet is like having your own bank branch—you verify every transaction yourself rather than trusting an external ledger.
Definition
A wallet that runs a full blockchain node, verifying all blocks and transactions locally and deriving addresses/keys within that node.
Key Points Intro
Full node wallets ensure trustlessness via:
Key Points

Local validation: Verifies consensus rules and all history.

Privacy: No reliance on third‑party servers for balance data.

Resource intensive: Requires disk, CPU, and bandwidth.

Built‑in key management: Integrates wallet with node’s RPC.

Example
Bitcoin Core’s wallet runs a full node, storing the UTXO set locally and signing transactions via RPC commands.
Technical Deep Dive
Full node maintains block index, UTXO or account state. Wallet module tracks address derivation, monitors mempool. On `sendtoaddress`, wallet constructs, signs, and broadcasts transaction via P2P.
Security Warning
High resource use may expose node to DoS if not properly configured; use pruning or resource limits.
Caveat
Slow sync times and large storage requirements limit accessibility for casual users.
Related Terms
SPV Wallet
Lightweight Wallet
UTXO
Account Abstraction

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