Results for “Public key vs Wallet address”

Public key and Wallet address, side by side

Public key

A public key is the shareable half of a crypto key pair, derived from the private key. Others use it to check that a signature really came from the private key, and a wallet address is usually a shortened hash of it.

What it means for you. A public key cannot be used to work backwards to the private key or to spend funds, so sharing it does not give away control. It does link activity to you: anyone holding it, or the address made from it, can follow that account's history on the blockchain.

Sources: ethereum.org: Ethereum accounts, Bitcoin developer guide: Wallets, Bitcoin developer guide: Transactions · checked 4 October 2026

Wallet address

A wallet address is a string of letters and numbers that identifies an account on a blockchain, the place others send funds to. On Ethereum it is 42 characters beginning with 0x, taken from the hash of the account's public key.

What it means for you. A payment sent to a wrong address, or to an address on a different chain, generally cannot be recalled. Compare the full address, not just the first and last few characters, because scammers create look-alike addresses. Everyone can see every payment made to a given address.

Sources: ethereum.org: Ethereum accounts, EIP-55: Mixed-case checksum address encoding, Bitcoin developer guide: Transactions · checked 4 October 2026

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Guides

What a crypto wallet actually is A wallet does not contain coins. Understanding what it does contain explains almost every rule people tell you to follow, and why they are not arbitrary. You lost access to a wallet. What can actually be done An honest triage: which kinds of lost access are genuinely recoverable, which are mathematically not, and what to do first in either case. What "not your keys, not your coins" actually means Who legally holds your crypto, why a private key is the whole asset, and how to decide between an exchange and a device you control. Buying your first crypto without getting fleeced Where to buy, what the spread really costs you, why the first purchase should be deliberately small, and the checks worth doing before you send money anywhere. How to spot a crypto recovery scam The second loss is usually larger than the first. The tells are consistent, and they are visible before any money changes hands.