Clear DefinitionsNon‑Custodial Wallet
Pronunciation
[non-kuh-stoh-dee-uhl woll-it]
Analogy
A non‑custodial wallet is like holding physical cash in your own safe—you alone control access and responsibility.
Definition
A wallet where the user retains full control of private keys, without reliance on third parties, ensuring true self‑custody of crypto assets.
Key Points Intro
Non‑custodial wallets empower users via:
Key Points
Self‑custody: Private keys stored by user only.
No intermediary: Transactions signed and broadcast directly.
Privacy: No KYC/AML required by wallet software.
Responsibility: User must backup and secure seed phrase.
Example
A user runs MetaMask or Trust Wallet and manages their own seed phrase, interacting with DApps directly.
Technical Deep Dive
Non‑custodial wallets derive keys from a BIP‑39 seed stored in app sandbox or secure enclave. Signing occurs client‑side; wallet communicates with blockchain nodes via public RPC endpoints. No key material leaves user device.
Security Warning
Loss of seed phrase or device means irreversible loss of funds; maintain secure backups.
Caveat
Full control requires user expertise; mistakes in key management are unforgiving.
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