bx hd public

Derive a child HD (BIP32) public key from another HD public or
private key.

$ bx hd-public --help

Usage: bx hd-public [-dh] [--config VALUE] [--index VALUE]               
[HD_PUBLIC_KEY]                                                          

Info: Derive a child HD (BIP32) public key from another HD public or     
private key.                                                             

Options (named):

-c [--config]        The path to the configuration settings file.        
-d [--hard]          Signal to create a hardened key.                    
-h [--help]          Get a description and instructions for this command.
-i [--index]         The HD index, defaults to zero.                     

Arguments (positional):

HD_PUBLIC_KEY        The parent HD public or private key. If not         
                     specified the key is read from STDIN. 

Example 1

BIP32 Test Vector 1 Chain m/0H

$ bx hd-public -d xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi

xprv9uHRZZhk6KAJC1avXpDAp4MDc3sQKNxDiPvvkX8Br5ngLNv1TxvUxt4cV1rGL5hj6KCesnDYUhd7oWgT11eZG7XnxHrnYeSvkzY7d2bhkJ7

Example 2

BIP32 Test Vector 1 Chain m/0H/1

$ bx hd-public -i 1 xprv9uHRZZhk6KAJC1avXpDAp4MDc3sQKNxDiPvvkX8Br5ngLNv1TxvUxt4cV1rGL5hj6KCesnDYUhd7oWgT11eZG7XnxHrnYeSvkzY7d2bhkJ7

xprv9wTYmMFdV23N2TdNG573QoEsfRrWKQgWeibmLntzniatZvR9BmLnvSxqu53Kw1UmYPxLgboyZQaXwTCg8MSY3H2EU4pWcQDnRnrVA1xe8fs

Example 3

BIP32 Test Vector 2 chain M/0

$ bx hd-public xprv9s21ZrQH143K31xYSDQpPDxsXRTUcvj2iNHm5NUtrGiGG5e2DtALGdso3pGz6ssrdK4PFmM8NSpSBHNqPqm55Qn3LqFtT2emdEXVYsCzC2U

xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt

Example 4

BIP32 Test Vector 2 Chain m/0/2147483647H

$ bx hd-public -d -i 2147483647 xprv9vHkqa6EV4sPZHYqZznhT2NPtPCjKuDKGY38FBWLvgaDx45zo9WQRUT3dKYnjwih2yJD9mkrocEZXo1ex8G81dwSM1fwqWpWkeS3v86pgKt

xprv9wSp6B7kry3Vj9m1zSnLvN3xH8RdsPP1Mh7fAaR7aRLcQMKTR2vidYEeEg2mUCTAwCd6vnxVrcjfy2kRgVsFawNzmjuHc2YmYRmagcEPdU9

Example 5

piped commands

$ bx seed | bx hd-new | bx hd-public

091974a96a5bfc5b0d4a5ddb3ed987bf
xprv9s21ZrQH143K4R2ZMbGkj7RB7wvDhi9ciTTvoLz92LBxfhpfuebjpzwYW9DVzainPDChhipGuEpyfV76ntw51v95FNBnEhHAgiLsJ9DaR9m
xpub69jBNd8w5JXfxde1m46b1oHPVdnG4RWS46ZDSP5gVNph7AbDqJzbdRbpYsYwTKAec6YSMMZEZNXLDDtNQcvVaYHgdSuZkCnqCaTM4PxXBZ2