What is a Private Key?
The short answer
The secret code that proves ownership of crypto and allows you to move it. Whoever holds it controls the funds.
Every crypto wallet has a private key — a long string of characters (usually represented as a seed phrase for readability) that mathematically proves you control a given address and authorises transactions. It must stay secret; anyone who obtains it has full control.
Related terms
Full glossaryToken
A cryptocurrency built on top of another blockchain, rather than having its own independent network.
Hash Rate
A measure of the total computing power securing a proof-of-work network like Bitcoin.
Cross-Chain Bridge
A tool that lets crypto or data move between two different, otherwise incompatible blockchain networks.
FOMO (Fear of Missing Out)
The anxious urge to buy something because its price is rising fast and everyone seems to be talking…
Wallet
Software or hardware that holds your private keys and lets you use crypto — not a place coins…
Max Supply
The absolute maximum number of coins that will ever exist for a given cryptocurrency, if one is set.
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