Technical Definition
Extended Private Key (xprv)
An extended private key can derive a hierarchy of child private and public keys for an HD wallet branch.
By Crypto University Editorial
Private KeySeed PhraseDerivation path
✦ Key Insight
An exposed xprv can compromise a large portion of a wallet, including future child keys.
✕ Common Misconceptions
Never share an xprv with a website, explorer, support agent, or portfolio tracker.
Detailed Explanation
An xprv combines private-key material with chain-code and hierarchy information. It can control many addresses beneath its branch.
In Practice
“An account-level xprv can derive the private keys needed for all addresses in that account branch.”
Dig Deeper
Private Key
The secret number that authorises spending from a crypto address.
Public Key
The key derived from your private key that others use to verify your signatures and send you funds.
Wallet
Software or hardware that stores your private keys and lets you sign transactions.
Seed Phrase
A list of 12 or 24 ordinary words that is the master key to every account in your wallet.
Derivation path
A derivation path identifies where a particular key or account is generated within a hierarchical deterministic wallet's key tree.