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APPENDIX B Appendix - pycoin, ku and tx. The Python library pycoin (http://github.com/richardkiss/pycoin), originally written and maintained by Richard Kiss, is a Python-based library that supports manipulation of bitcoin keys and transactions, even supporting the scripting language enough to properly deal with non-standard transactions. The pycoin library supports both Python 2 (2.7.x) and Python 3 (after 3.3), and comes with some handy command-line utilities, ku and tx. Pycoin command-line tools: KU and TX Key Utility (KU) The command-line utility ```ku``` (“key utility”) is Swiss Army knife for manipulating keys. It supports BIP32 keys, WIF, and address (bitcoin and alt coins). Here are some examples. Create a BIP32 Key using the default entropy sources of GPG and /dev/random: $ ku create input network wallet key : create : Bitcoin : xprv9s21ZrQH143K3LU5ctPZTBnb9kTjA5Su9DcWHvXJemiJBsY7VqXUG7hipgdWaU\ m2nhnzdvxJf5KJo9vjP2nABX65c5sFsWsV8oXcbpehtJi public version : xpub661MyMwAqRbcFpYYiuvZpKjKhnJDZYAkWSY76JvvD7FH4fsG3Nqiov2CfxzxY8\ DGcpfT56AMFeo8M8KPkFMfLUtvwjwb6WPv8rY65L2q8Hz tree depth :0 fingerprint : 9d9c6092 parent f'print : 00000000 child index chain code private key :0 : 80574fb260edaa4905bc86c9a47d30c697c50047ed466c0d4a5167f6821e8f3c : yes 247PDF Image | Mastering Bitcoin
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