Xpub (Extended Public Key)
Wallets● Common
A public key combined with chain code, enabling derivation of child public keys without the private key. Allows watch-only wallets and address generation on potentially compromised devices. Sharing xpub reveals all derived addresses (privacy implications).
Technical Notes
BIP-32 format: version || depth || parent fingerprint || child index || chain code || key. Prefixes: xpub (P2PKH), ypub (P2SH-P2WPKH), zpub (P2WPKH). Extended private key (xprv) can derive xpub but not vice versa. Never share xprv.
Metadata
Visibility: Public
Created:1/3/2026by System