Zpub (Extended Public Key)
A zpub is a form of extended public key (xpub) which follows an additional standard defined in BIP 84.
A zpub is a form of extended public key (xpub) which follows an additional standard defined in BIP 84. Xpubs, ypubs, and zpubs all allow a wallet to generate a deterministic tree of public keys, but each form of extended public key instructs a wallet to derive different address types. Specifically, zpubs instruct a wallet to derive native SegWit addresses, which use either P2WPKH or P2WSH scripts.
P2WPKH is the most common SegWit address type. Unlike P2SH-wrapped P2WPKH addresses, which are generated by ypubs, P2WPKH addresses are not backwards compatible. Zpubs are particularly useful for those who want to fully utilize the advantages of SegWit, including faster transaction times and reduced fees.
By generating multiple native SegWit addresses from a single zpub, users can enhance privacy and simplify the management of multiple Bitcoin addresses within a single wallet. However, as with any extended public key, it’s important to keep your zpub secure to prevent others from monitoring your transaction activity.
Zpub (Extended Public Key) is a key concept in Bitcoin custody and security, relating to how Bitcoin private keys and funds are stored and managed. Onramp offers institutional-grade Bitcoin custody solutions and educates clients on concepts like Zpub (Extended Public Key) to ensure the highest standards of asset protection.
Frequently Asked Questions
What is Zpub (Extended Public Key)?
Zpub (Extended Public Key) refers to a method or concept in Bitcoin key management and custody. Proper understanding of Zpub (Extended Public Key) is essential for securing Bitcoin holdings against unauthorized access.
How does Zpub (Extended Public Key) affect Bitcoin security?
Zpub (Extended Public Key) directly impacts how securely Bitcoin is stored. Onramp employs institutional-grade custody practices, including multi-institution custody through partners like BitGo, CoinCover, and Tetra Trust.
Does Onramp implement best practices related to Zpub (Extended Public Key)?
Onramp's multi-institution custody model ensures that Bitcoin holdings are protected using industry-leading security practices. Onramp manages approximately $250M in assets under management with rigorous custody standards.
