Extended Public Key (ypub)
wallet · hd-wallet
A wallet-specific extended public key prefix that signals a nested SegWit address type to compatible software.
1.definition
A ypub is an extended public key format used by some Bitcoin wallets to indicate P2WPKH-in-P2SH, also called nested SegWit. It is related to xpubs but changes the version bytes to communicate address type.
2.compatibility
Ypub, zpub, and similar prefixes are common but not part of original BIP32. Some tools expect a plain xpub plus an explicit derivation path and script type, so imports should be tested carefully.
Related terms
Extended Public Key (xpub)
→A BIP32 extended public key that derives many child public keys and addresses without revealing private keys.
wallet · hd-wallet
Derivation Path
→A notation that selects a branch and key within a hierarchical deterministic wallet.
wallet · security
Wallet
→An app or device that helps you receive cryptocurrency, check your balance, and authorize payments.
wallet · security
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