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683 lines
38 KiB
683 lines
38 KiB
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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. As of June, 2014, the latest released version is 0.42, and all examples here are based on that version; be warned that it is still under active development, so later versions may have differences in API or command-line tools.
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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.
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To install:
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$ python3 -m venv /tmp/pycoin
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$ . /tmp/pycoin/bin/activate
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$ pip install pycoin==0.42
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Downloading/unpacking pycoin==0.42
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Downloading pycoin-0.42.tar.gz (66kB): 66kB downloaded
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Running setup.py (path:/tmp/pycoin/build/pycoin/setup.py) egg_info for package pycoin
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Installing collected packages: pycoin
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Running setup.py install for pycoin
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Installing tx script to /tmp/pycoin/bin
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Installing cache_tx script to /tmp/pycoin/bin
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Installing bu script to /tmp/pycoin/bin
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Installing fetch_unspent script to /tmp/pycoin/bin
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Installing block script to /tmp/pycoin/bin
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Installing spend script to /tmp/pycoin/bin
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Installing ku script to /tmp/pycoin/bin
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Installing genwallet script to /tmp/pycoin/bin
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Successfully installed pycoin
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Cleaning up...
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$
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KU and TX
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=========
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KU
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--
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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.
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Create a BIP32 Key using the default entropy sources of GPG and /dev/random:
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$ ku create
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input : create
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network : Bitcoin
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wallet key : xprv9s21ZrQH143K3LU5ctPZTBnb9kTjA5Su9DcWHvXJemiJBsY7VqXUG7hipgdWaU
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m2nhnzdvxJf5KJo9vjP2nABX65c5sFsWsV8oXcbpehtJi
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public version : xpub661MyMwAqRbcFpYYiuvZpKjKhnJDZYAkWSY76JvvD7FH4fsG3Nqiov2CfxzxY8
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DGcpfT56AMFeo8M8KPkFMfLUtvwjwb6WPv8rY65L2q8Hz
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tree depth : 0
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fingerprint : 9d9c6092
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parent f'print : 00000000
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child index : 0
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chain code : 80574fb260edaa4905bc86c9a47d30c697c50047ed466c0d4a5167f6821e8f3c
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private key : yes
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secret exponent : 112471538590155650688604752840386134637231974546906847202389294096567806844862
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hex : f8a8a28b28a916e1043cc0aca52033a18a13cab1638d544006469bc171fddfbe
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wif : L5Z54xi6qJusQT42JHA44mfPVZGjyb4XBRWfxAzUWwRiGx1kV4sP
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uncompressed : 5KhoEavGNNH4GHKoy2Ptu4KfdNp4r56L5B5un8FP6RZnbsz5Nmb
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public pair x : 76460638240546478364843397478278468101877117767873462127021560368290114016034
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public pair y : 59807879657469774102040120298272207730921291736633247737077406753676825777701
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x as hex : a90b3008792432060fa04365941e09a8e4adf928bdbdb9dad41131274e379322
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y as hex : 843a0f6ed9c0eb1962c74533795406914fe3f1957c5238951f4fe245a4fcd625
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y parity : odd
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key pair as sec : 03a90b3008792432060fa04365941e09a8e4adf928bdbdb9dad41131274e379322
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uncompressed : 04a90b3008792432060fa04365941e09a8e4adf928bdbdb9dad41131274e379322
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843a0f6ed9c0eb1962c74533795406914fe3f1957c5238951f4fe245a4fcd625
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hash160 : 9d9c609247174ae323acfc96c852753fe3c8819d
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uncompressed : 8870d869800c9b91ce1eb460f4c60540f87c15d7
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Bitcoin address : 1FNNRQ5fSv1wBi5gyfVBs2rkNheMGt86sp
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uncompressed : 1DSS5isnH4FsVaLVjeVXewVSpfqktdiQAM
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Create a BIP32 key from a passphrase:
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*THE PASSPHRASE IN THIS EXAMPLE IS WAY TOO EASY TO GUESS.*
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$ ku P:foo
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input : P:foo
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network : Bitcoin
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wallet key : xprv9s21ZrQH143K31AgNK5pyVvW23gHnkBq2wh5aEk6g1s496M8ZMjxncCKZKgb5j
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ZoY5eSJMJ2Vbyvi2hbmQnCuHBujZ2WXGTux1X2k9Krdtq
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public version : xpub661MyMwAqRbcFVF9ULcqLdsEa5WnCCugQAcgNd9iEMQ31tgH6u4DLQWoQayvtS
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VYFvXz2vPPpbXE1qpjoUFidhjFj82pVShWu9curWmb2zy
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tree depth : 0
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fingerprint : 5d353a2e
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parent f'print : 00000000
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child index : 0
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chain code : 5eeb1023fd6dd1ae52a005ce0e73420821e1d90e08be980a85e9111fd7646bbc
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private key : yes
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secret exponent : 65825730547097305716057160437970790220123864299761908948746835886007793998275
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hex : 91880b0e3017ba586b735fe7d04f1790f3c46b818a2151fb2def5f14dd2fd9c3
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wif : L26c3H6jEPVSqAr1usXUp9qtQJw6NHgApq6Ls4ncyqtsvcq2MwKH
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uncompressed : 5JvNzA5vXDoKYJdw8SwwLHxUxaWvn9mDea6k1vRPCX7KLUVWa7W
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public pair x : 81821982719381104061777349269130419024493616650993589394553404347774393168191
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public pair y : 58994218069605424278320703250689780154785099509277691723126325051200459038290
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x as hex : b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f
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y as hex : 826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52
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y parity : even
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key pair as sec : 02b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f
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uncompressed : 04b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f
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826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52
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hash160 : 5d353a2ecdb262477172852d57a3f11de0c19286
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uncompressed : e5bd3a7e6cb62b4c820e51200fb1c148d79e67da
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Bitcoin address : 19Vqc8uLTfUonmxUEZac7fz1M5c5ZZbAii
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uncompressed : 1MwkRkogzBRMehBntgcq2aJhXCXStJTXHT
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Get info as JSON:
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$ ku P:foo -P -j
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{
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"y_parity": "even",
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"public_pair_y_hex": "826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52",
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"private_key": "no",
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"parent_fingerprint": "00000000",
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"tree_depth": "0",
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"network": "Bitcoin",
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"btc_address_uncompressed": "1MwkRkogzBRMehBntgcq2aJhXCXStJTXHT",
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"key_pair_as_sec_uncompressed": "04b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f826d8b4d3010aea16ff4c1c1d3ae68541d9a04df54a2c48cc241c2983544de52",
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"public_pair_x_hex": "b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f",
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"wallet_key": "xpub661MyMwAqRbcFVF9ULcqLdsEa5WnCCugQAcgNd9iEMQ31tgH6u4DLQWoQayvtSVYFvXz2vPPpbXE1qpjoUFidhjFj82pVShWu9curWmb2zy",
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"chain_code": "5eeb1023fd6dd1ae52a005ce0e73420821e1d90e08be980a85e9111fd7646bbc",
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"child_index": "0",
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"hash160_uncompressed": "e5bd3a7e6cb62b4c820e51200fb1c148d79e67da",
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"btc_address": "19Vqc8uLTfUonmxUEZac7fz1M5c5ZZbAii",
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"fingerprint": "5d353a2e",
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"hash160": "5d353a2ecdb262477172852d57a3f11de0c19286",
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"input": "P:foo",
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"public_pair_x": "81821982719381104061777349269130419024493616650993589394553404347774393168191",
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"public_pair_y": "58994218069605424278320703250689780154785099509277691723126325051200459038290",
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"key_pair_as_sec": "02b4e599dfa44555a4ed38bcfff0071d5af676a86abf123c5b4b4e8e67a0b0b13f"
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}
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Public BIP32 Key:
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$ ku -w -P P:foo
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xpub661MyMwAqRbcFVF9ULcqLdsEa5WnCCugQAcgNd9iEMQ31tgH6u4DLQWoQayvtSVYFvXz2vPPpbXE1qpjoUFidhjFj82pVShWu9curWmb2zy
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Generate a subkey:
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$ ku -w -s3/2 P:foo
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xprv9wTErTSkjVyJa1v4cUTFMFkWMe5eu8ErbQcs9xajnsUzCBT7ykHAwdrxvG3g3f6BFk7ms5hHBvmbdutNmyg6iogWKxx6mefEw4M8EroLgKj
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Hardened subkey:
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$ ku -w -s3/2H P:foo
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xprv9wTErTSu5AWGkDeUPmqBcbZWX1xq85ZNX9iQRQW9DXwygFp7iRGJo79dsVctcsCHsnZ3XU3DhsuaGZbDh8iDkBN45k67UKsJUXM1JfRCdn1
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WIF:
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$ ku -W P:foo
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L26c3H6jEPVSqAr1usXUp9qtQJw6NHgApq6Ls4ncyqtsvcq2MwKH
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Address:
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$ ku -a P:foo
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19Vqc8uLTfUonmxUEZac7fz1M5c5ZZbAii
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Generate a bunch of subkeys:
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$ ku P:foo -s 0/0-5 -w
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xprv9xWkBDfyBXmZjBG9EiXBpy67KK72fphUp9utJokEBFtjsjiuKUUDF5V3TU8U8cDzytqYnSekc8bYuJS8G3bhXxKWB89Ggn2dzLcoJsuEdRK
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xprv9xWkBDfyBXmZnzKf3bAGifK593gT7WJZPnYAmvc77gUQVej5QHckc5Adtwxa28ACmANi9XhCrRvtFqQcUxt8rUgFz3souMiDdWxJDZnQxzx
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xprv9xWkBDfyBXmZqdXA8y4SWqfBdy71gSW9sjx9JpCiJEiBwSMQyRxan6srXUPBtj3PTxQFkZJAiwoUpmvtrxKZu4zfsnr3pqyy2vthpkwuoVq
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xprv9xWkBDfyBXmZsA85GyWj9uYPyoQv826YAadKWMaaEosNrFBKgj2TqWuiWY3zuqxYGpHfv9cnGj5P7e8EskpzKL1Y8Gk9aX6QbryA5raK73p
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xprv9xWkBDfyBXmZv2q3N66hhZ8DAcEnQDnXML1J62krJAcf7Xb1HJwuW2VMJQrCofY2jtFXdiEY8UsRNJfqK6DAdyZXoMvtaLHyWQx3FS4A9zw
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xprv9xWkBDfyBXmZw4jEYXUHYc9fT25k9irP87n2RqfJ5bqbjKdT84Mm7Wtc2xmzFuKg7iYf7XFHKkSsaYKWKJbR54bnyAD9GzjUYbAYTtN4ruo
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Generate the corresponding addresses:
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$ ku P:foo -s 0/0-5 -a
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1MrjE78H1R1rqdFrmkjdHnPUdLCJALbv3x
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1AnYyVEcuqeoVzH96zj1eYKwoWfwte2pxu
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1GXr1kZfxE1FcK6ZRD5sqqqs5YfvuzA1Lb
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116AXZc4bDVQrqmcinzu4aaPdrYqvuiBEK
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1Cz2rTLjRM6pMnxPNrRKp9ZSvRtj5dDUML
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1WstdwPnU6HEUPme1DQayN9nm6j7nDVEM
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Generate the corresponding WIFS:
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$ ku P:foo -s 0/0-5 -W
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L5a4iE5k9gcJKGqX3FWmxzBYQc29PvZ6pgBaePLVqT5YByEnBomx
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Kyjgne6GZwPGB6G6kJEhoPbmyjMP7D5d3zRbHVjwcq4iQXD9QqKQ
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L4B3ygQxK6zH2NQGxLDee2H9v4Lvwg14cLJW7QwWPzCtKHdWMaQz
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L2L2PZdorybUqkPjrmhem4Ax5EJvP7ijmxbNoQKnmTDMrqemY8UF
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L2oD6vA4TUyqPF8QG4vhUFSgwCyuuvFZ3v8SKHYFDwkbM765Nrfd
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KzChTbc3kZFxUSJ3Kt54cxsogeFAD9CCM4zGB22si8nfKcThQn8C
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Check that it works by choosing a BIP32 string (the one corresponding to subkey 0/3):
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$ ku -W xprv9xWkBDfyBXmZsA85GyWj9uYPyoQv826YAadKWMaaEosNrFBKgj2TqWuiWY3zuqxYGpHfv9cnGj5P7e8EskpzKL1Y8Gk9aX6QbryA5raK73p
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L2L2PZdorybUqkPjrmhem4Ax5EJvP7ijmxbNoQKnmTDMrqemY8UF
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$ ku -a xprv9xWkBDfyBXmZsA85GyWj9uYPyoQv826YAadKWMaaEosNrFBKgj2TqWuiWY3zuqxYGpHfv9cnGj5P7e8EskpzKL1Y8Gk9aX6QbryA5raK73p
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116AXZc4bDVQrqmcinzu4aaPdrYqvuiBEK
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Yep, looks familiar.
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From secret exponent:
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$ ku 1
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input : 1
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network : Bitcoin
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secret exponent : 1
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hex : 1
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wif : KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
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uncompressed : 5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf
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public pair x : 55066263022277343669578718895168534326250603453777594175500187360389116729240
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public pair y : 32670510020758816978083085130507043184471273380659243275938904335757337482424
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x as hex : 79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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y as hex : 483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
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y parity : even
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key pair as sec : 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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uncompressed : 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
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hash160 : 751e76e8199196d454941c45d1b3a323f1433bd6
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uncompressed : 91b24bf9f5288532960ac687abb035127b1d28a5
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Bitcoin address : 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
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uncompressed : 1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm
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Litecoin version:
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$ ku -nL 1
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input : 1
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network : Litecoin
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secret exponent : 1
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hex : 1
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wif : T33ydQRKp4FCW5LCLLUB7deioUMoveiwekdwUwyfRDeGZm76aUjV
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uncompressed : 6u823ozcyt2rjPH8Z2ErsSXJB5PPQwK7VVTwwN4mxLBFrao69XQ
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public pair x : 55066263022277343669578718895168534326250603453777594175500187360389116729240
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public pair y : 32670510020758816978083085130507043184471273380659243275938904335757337482424
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x as hex : 79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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y as hex : 483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
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y parity : even
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key pair as sec : 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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uncompressed : 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
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hash160 : 751e76e8199196d454941c45d1b3a323f1433bd6
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uncompressed : 91b24bf9f5288532960ac687abb035127b1d28a5
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Litecoin address : LVuDpNCSSj6pQ7t9Pv6d6sUkLKoqDEVUnJ
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uncompressed : LYWKqJhtPeGyBAw7WC8R3F7ovxtzAiubdM
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Dogecoin WIF:
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$ ku -nD -W 1
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QNcdLVw8fHkixm6NNyN6nVwxKek4u7qrioRbQmjxac5TVoTtZuot
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From public pair (on Testnet):
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$ ku -nT 55066263022277343669578718895168534326250603453777594175500187360389116729240,even
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input : 550662630222773436695787188951685343262506034537775941755001873603
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89116729240,even
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network : Bitcoin testnet
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public pair x : 55066263022277343669578718895168534326250603453777594175500187360389116729240
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public pair y : 32670510020758816978083085130507043184471273380659243275938904335757337482424
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x as hex : 79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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y as hex : 483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
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y parity : even
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key pair as sec : 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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uncompressed : 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
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483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
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hash160 : 751e76e8199196d454941c45d1b3a323f1433bd6
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uncompressed : 91b24bf9f5288532960ac687abb035127b1d28a5
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Bitcoin testnet address : mrCDrCybB6J1vRfbwM5hemdJz73FwDBC8r
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uncompressed : mtoKs9V381UAhUia3d7Vb9GNak8Qvmcsme
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From hash160:
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$ ku 751e76e8199196d454941c45d1b3a323f1433bd6
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input : 751e76e8199196d454941c45d1b3a323f1433bd6
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network : Bitcoin
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hash160 : 751e76e8199196d454941c45d1b3a323f1433bd6
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Bitcoin address : 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
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As a Dogecoin address:
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$ ku -nD 751e76e8199196d454941c45d1b3a323f1433bd6
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input : 751e76e8199196d454941c45d1b3a323f1433bd6
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network : Dogecoin
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hash160 : 751e76e8199196d454941c45d1b3a323f1433bd6
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Dogecoin address : DFpN6QqFfUm3gKNaxN6tNcab1FArL9cZLE
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tx
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--
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The command-line utility ```tx``` will display transactions in human-readable form, fetch base transactions from pycoin's transaction cache or from web services (blockchain.info, blockr.io, biteasy.com are currently supported), merge transactions, add or delete inputs or outputs, and sign transactions.
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Examples:
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View the famous "pizza" transaction [PIZZA]:
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$ tx 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a
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warning: consider setting environment variable PYCOIN_CACHE_DIR=~/.pycoin_cache to cache transactions fetched via web services
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warning: no service providers found for get_tx; consider setting environment variable PYCOIN_SERVICE_PROVIDERS=BLOCKR_IO:BLOCKCHAIN_INFO:BITEASY:BLOCKEXPLORER
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usage: tx [-h] [-t TRANSACTION_VERSION] [-l LOCK_TIME] [-n NETWORK] [-a]
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[-i address] [-f path-to-private-keys] [-g GPG_ARGUMENT]
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[--remove-tx-in tx_in_index_to_delete]
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[--remove-tx-out tx_out_index_to_delete] [-F transaction-fee] [-u]
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[-b BITCOIND_URL] [-o path-to-output-file]
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argument [argument ...]
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tx: error: can't find Tx with id 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a
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Oops! We don't have web services set up. Let's do that now.
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$ PYCOIN_CACHE_DIR=~/.pycoin_cache
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$ PYCOIN_SERVICE_PROVIDERS=BLOCKR_IO:BLOCKCHAIN_INFO:BITEASY:BLOCKEXPLORER
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$ export PYCOIN_CACHE_DIR PYCOIN_SERVICE_PROVIDERS
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It's not done automatically so a command-line tool won't leak potentially private information about what transactions you're interested in to a third party web site. If you don't care, you could put these lines into your .profile.
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Let's try again:
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$ tx 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a
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Version: 1 tx hash 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a 159 bytes
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TxIn count: 1; TxOut count: 1
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Lock time: 0 (valid anytime)
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Input:
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0: (unknown) from 1e133f7de73ac7d074e2746a3d6717dfc99ecaa8e9f9fade2cb8b0b20a5e0441:0
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Output:
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0: 1CZDM6oTttND6WPdt3D6bydo7DYKzd9Qik receives 10000000.00000 mBTC
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Total output 10000000.00000 mBTC
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including unspents in hex dump since transaction not fully signed
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010000000141045e0ab2b0b82cdefaf9e9a8ca9ec9df17673d6a74e274d0c73ae77d3f131e000000004a493046022100a7f26eda874931999c90f87f01ff1ffc76bcd058fe16137e0e63fdb6a35c2d78022100a61e9199238eb73f07c8f209504c84b80f03e30ed8169edd44f80ed17ddf451901ffffffff010010a5d4e80000001976a9147ec1003336542cae8bded8909cdd6b5e48ba0ab688ac00000000
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** can't validate transaction as source transactions missing
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The final line appears because to validate the transactions' signatures, you technically need to the source transactions. So let's add ```-a``` to augment the transactions with source information.
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$ tx -a 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a
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warning: transaction fees recommendations casually calculated and estimates may be incorrect
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warning: transaction fee lower than (casually calculated) expected value of 0.1 mBTC, transaction might not propogate
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Version: 1 tx hash 49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a 159 bytes
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TxIn count: 1; TxOut count: 1
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Lock time: 0 (valid anytime)
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Input:
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0: 17WFx2GQZUmh6Up2NDNCEDk3deYomdNCfk from 1e133f7de73ac7d074e2746a3d6717dfc99ecaa8e9f9fade2cb8b0b20a5e0441:0 10000000.00000 mBTC sig ok
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Output:
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0: 1CZDM6oTttND6WPdt3D6bydo7DYKzd9Qik receives 10000000.00000 mBTC
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Total input 10000000.00000 mBTC
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Total output 10000000.00000 mBTC
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Total fees 0.00000 mBTC
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010000000141045e0ab2b0b82cdefaf9e9a8ca9ec9df17673d6a74e274d0c73ae77d3f131e000000004a493046022100a7f26eda874931999c90f87f01ff1ffc76bcd058fe16137e0e63fdb6a35c2d78022100a61e9199238eb73f07c8f209504c84b80f03e30ed8169edd44f80ed17ddf451901ffffffff010010a5d4e80000001976a9147ec1003336542cae8bded8909cdd6b5e48ba0ab688ac00000000
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all incoming transaction values validated
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We can see the transactions have been cached.
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$ ls ~/.pycoin_cache/txs/
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1e133f7de73ac7d074e2746a3d6717dfc99ecaa8e9f9fade2cb8b0b20a5e0441_tx.bin
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49d2adb6e476fa46d8357babf78b1b501fd39e177ac7833124b3f67b17c40c2a_tx.bin
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Now, let's create a new transaction with some Satoshi coinbase coins. In block #1, we see a coinbase transaction to 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX. Let's use fetch_unspent to find all coins in this address.
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$ fetch_unspent 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX
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a3a6f902a51a2cbebede144e48a88c05e608c2cce28024041a5b9874013a1e2a/0/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/333000
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cea36d008badf5c7866894b191d3239de9582d89b6b452b596f1f1b76347f8cb/31/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/10000
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065ef6b1463f552f675622a5d1fd2c08d6324b4402049f68e767a719e2049e8d/86/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/10000
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a66dddd42f9f2491d3c336ce5527d45cc5c2163aaed3158f81dc054447f447a2/0/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/10000
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ffd901679de65d4398de90cefe68d2c3ef073c41f7e8dbec2fb5cd75fe71dfe7/0/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/100
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d658ab87cc053b8dbcfd4aa2717fd23cc3edfe90ec75351fadd6a0f7993b461d/5/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/911
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36ebe0ca3237002acb12e1474a3859bde0ac84b419ec4ae373e63363ebef731c/1/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/100000
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fd87f9adebb17f4ebb1673da76ff48ad29e64b7afa02fda0f2c14e43d220fe24/0/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/1
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dfdf0b375a987f17056e5e919ee6eadd87dad36c09c4016d4a03cea15e5c05e3/1/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/1337
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cb2679bfd0a557b2dc0d8a6116822f3fcbe281ca3f3e18d3855aa7ea378fa373/0/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/1337
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d6be34ccf6edddc3cf69842dce99fe503bf632ba2c2adb0f95c63f6706ae0c52/1/76a914119b098e2e980a229e139a9ed01a469e518e6f2688ac/2000000
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0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098/0/410496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858eeac/5000000000
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Wow, that yields a lot of options. The last one is the coinbase source from block #1. Let's write a transaction that sends these coins to my donation address.
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$ tx 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098/0/410496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858eeac/5000000000 1KissFDVu2wAYWPRm4UGh5ZCDU9sE9an8T -o tx.bin
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|
all incoming transaction values validated
|
|
$ ls -l tx.bin
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-rw-r--r-- 1 kiss staff 161 Apr 27 18:23 tx.bin
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Now, let's dump it.
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$ tx tx.bin
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warning: transaction fees recommendations casually calculated and estimates may be incorrect
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Version: 1 tx hash 3d36aed60ecb311a55a6329f5c2af785f06e147fc35b7678eb798eca7f603c83 85 bytes
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TxIn count: 1; TxOut count: 1
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Lock time: 0 (valid anytime)
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Input:
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0: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098:0 50000.00000 mBTC BAD SIG
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Output:
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0: 1KissFDVu2wAYWPRm4UGh5ZCDU9sE9an8T receives 49999.90000 mBTC
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Total input 50000.00000 mBTC
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Total output 49999.90000 mBTC
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|
Total fees 0.10000 mBTC
|
|
including unspents in hex dump since transaction not fully signed
|
|
0100000001982051fd1e4ba744bbbe680e1fee14677ba1a3c3540bf7b1cdb606e857233e0e0000000000ffffffff01f0ca052a010000001976a914cd5dc792f0abb0aa8ba4ca36c9fe5eda8e495ff988ac0000000000f2052a0100000043410496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858eeac
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all incoming transaction values validated
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|
|
We see a transaction that sends most of the 50 BTC to a new address. The signature is not correct though. If we had the private key, we could sign it like this:
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$ tx tx.bin -f wifs.gpg -o signed_tx.bin
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You need a passphrase to unlock the secret key for
|
|
user: "Richard Kiss <him@richardkiss.com>"
|
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2048-bit ELG-E key, ID 681E71C8, created 1999-11-08 (main key ID DBD8AB6A)
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gpg: encrypted with 2048-bit ELG-E key, ID 681E71C8, created 1999-11-08
|
|
"Richard Kiss <him@richardkiss.com>"
|
|
signing...
|
|
warning: 1 TxIn items still unsigned
|
|
all incoming transaction values validated
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|
Yep, if the file passed to -f ends with ```.gpg```, then ```gpg -d``` is automatically invoked, and you can type your GPG passphrase. So ```tx``` plus ```gpg``` is actually a pretty reasonably secure solution! And if you keep your WIF.gpg file on an airgapped machine, this solves the problem of cold storage!
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$ shasum tx.bin signed_tx.bin
|
|
3ba7db8417e0fe1aeb7b4a1cbf13880bf84f38bc tx.bin
|
|
3ba7db8417e0fe1aeb7b4a1cbf13880bf84f38bc signed_tx.bin
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Unfortunately for me, this file didn't include the WIF to the outgoing transaction, so the transaction remains unsigned.
|
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|
|
You can also use ```-i``` to fetch all unspents (via the web) for a given bitcoin address and split it up.
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|
$ tx -F 85000 -i 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX 1KissFDVu2wAYWPRm4UGh5ZCDU9sE9an8T 1KissEskteXTAXbh17qJYLtMes1B6kJxZj 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX/50
|
|
warning: transaction fees recommendations casually calculated and estimates may be incorrect
|
|
warning: transaction fee of 0.85 exceeds expected value of 0.1 mBTC
|
|
Version: 1 tx hash fb3551086baa047f4e8b55a28c275502b48c637c003b89dbececb3cab8897089 604 bytes
|
|
TxIn count: 12; TxOut count: 3
|
|
Lock time: 0 (valid anytime)
|
|
Inputs:
|
|
0: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from a3a6f902a51a2cbebede144e48a88c05e608c2cce28024041a5b9874013a1e2a:0 3.33000 mBTC BAD SIG
|
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1: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from cea36d008badf5c7866894b191d3239de9582d89b6b452b596f1f1b76347f8cb:31 0.10000 mBTC BAD SIG
|
|
2: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from 065ef6b1463f552f675622a5d1fd2c08d6324b4402049f68e767a719e2049e8d:86 0.10000 mBTC BAD SIG
|
|
3: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from a66dddd42f9f2491d3c336ce5527d45cc5c2163aaed3158f81dc054447f447a2:0 0.10000 mBTC BAD SIG
|
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4: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from ffd901679de65d4398de90cefe68d2c3ef073c41f7e8dbec2fb5cd75fe71dfe7:0 0.00100 mBTC BAD SIG
|
|
5: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from d658ab87cc053b8dbcfd4aa2717fd23cc3edfe90ec75351fadd6a0f7993b461d:5 0.00911 mBTC BAD SIG
|
|
6: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from 36ebe0ca3237002acb12e1474a3859bde0ac84b419ec4ae373e63363ebef731c:1 1.00000 mBTC BAD SIG
|
|
7: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from fd87f9adebb17f4ebb1673da76ff48ad29e64b7afa02fda0f2c14e43d220fe24:0 0.00001 mBTC BAD SIG
|
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8: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from dfdf0b375a987f17056e5e919ee6eadd87dad36c09c4016d4a03cea15e5c05e3:1 0.01337 mBTC BAD SIG
|
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9: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from cb2679bfd0a557b2dc0d8a6116822f3fcbe281ca3f3e18d3855aa7ea378fa373:0 0.01337 mBTC BAD SIG
|
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10: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from d6be34ccf6edddc3cf69842dce99fe503bf632ba2c2adb0f95c63f6706ae0c52:1 20.00000 mBTC BAD SIG
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11: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX from 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098:0 50000.00000 mBTC BAD SIG
|
|
Outputs:
|
|
0: 1KissFDVu2wAYWPRm4UGh5ZCDU9sE9an8T receives 25011.90818 mBTC
|
|
1: 1KissEskteXTAXbh17qJYLtMes1B6kJxZj receives 25011.90818 mBTC
|
|
2: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX receives 0.00050 mBTC
|
|
Total input 50024.66686 mBTC
|
|
Total output 50023.81686 mBTC
|
|
Total fees 0.85000 mBTC
|
|
including unspents in hex dump since transaction not fully signed
|
|
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
|
|
all incoming transaction values validated
|
|
|
|
Note that 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX was explicitly budgeted 50 satoshis. A custom fee of 85000 satoshis was paid, and the remainder was split between the other two addresses.
|
|
|
|
OK, let's try actually signing a transaction. Let's use the WIF for secret exponent 1.
|
|
|
|
$ ku -a -u 1
|
|
1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm
|
|
|
|
Investigation on blockchain.info show a transaction payable to this bitcoin address with id d61aa2a5f5bce59d2a57447134f7ce9ce9d29b5c471f4bf747c43bf82aa26c2a.
|
|
|
|
$ tx -u d61aa2a5f5bce59d2a57447134f7ce9ce9d29b5c471f4bf747c43bf82aa26c2a
|
|
d61aa2a5f5bce59d2a57447134f7ce9ce9d29b5c471f4bf747c43bf82aa26c2a/0/76a9149b92770a85b1252448ec69900e77f1371d6a620188ac/70594320
|
|
d61aa2a5f5bce59d2a57447134f7ce9ce9d29b5c471f4bf747c43bf82aa26c2a/1/76a91491b24bf9f5288532960ac687abb035127b1d28a588ac/12345678
|
|
|
|
** can't validate transaction as source transactions missing
|
|
|
|
The ```-u``` shows the unspents, which can be passed as inputs to tx.
|
|
|
|
$ tx d61aa2a5f5bce59d2a57447134f7ce9ce9d29b5c471f4bf747c43bf82aa26c2a/1/76a91491b24bf9f5288532960ac687abb035127b1d28a588ac/12345678 1KissFDVu2wAYWPRm4UGh5ZCDU9sE9an8T -o tx.bin
|
|
all incoming transaction values validated
|
|
|
|
$ tx tx.bin
|
|
warning: transaction fees recommendations casually calculated and estimates may be incorrect
|
|
Version: 1 tx hash ab963a39df0e095bbd76840de90fe208e903d5d43e891ef245b217dbcd29a8a7 85 bytes
|
|
TxIn count: 1; TxOut count: 1
|
|
Lock time: 0 (valid anytime)
|
|
Input:
|
|
0: 1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm from d61aa2a5f5bce59d2a57447134f7ce9ce9d29b5c471f4bf747c43bf82aa26c2a:1 123.45678 mBTC BAD SIG
|
|
Output:
|
|
0: 1KissFDVu2wAYWPRm4UGh5ZCDU9sE9an8T receives 123.35678 mBTC
|
|
Total input 123.45678 mBTC
|
|
Total output 123.35678 mBTC
|
|
Total fees 0.10000 mBTC
|
|
including unspents in hex dump since transaction not fully signed
|
|
01000000012a6ca22af83bc447f74b1f475c9bd2e99ccef7347144572a9de5bcf5a5a21ad60100000000ffffffff013e3abc00000000001976a914cd5dc792f0abb0aa8ba4ca36c9fe5eda8e495ff988ac000000004e61bc00000000001976a91491b24bf9f5288532960ac687abb035127b1d28a588ac
|
|
all incoming transaction values validated
|
|
|
|
Now, let's sign it.
|
|
|
|
$ tx tx.bin KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn -o signed_tx.hex
|
|
signing...
|
|
all incoming transaction values validated
|
|
$ cat signed_tx.hex
|
|
01000000012a6ca22af83bc447f74b1f475c9bd2e99ccef7347144572a9de5bcf5a5a21ad6010000008b48304502210084fd73b302520381dea1885efda58bc446653998864db7a2cd04906fc6d5536302206325303c8e50f84d25c95eff2849441382d4aafb2f678f636a6d164b721bf0f101410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ffffffff013e3abc00000000001976a914cd5dc792f0abb0aa8ba4ca36c9fe5eda8e495ff988ac00000000
|
|
$ tx -a signed_tx.hex
|
|
warning: transaction fees recommendations casually calculated and estimates may be incorrect
|
|
Version: 1 tx hash 0995cf6f55e1cf22f7c31f5ad52d111e897b0b9b7e37a1bb755a470324b4a2c4 224 bytes
|
|
TxIn count: 1; TxOut count: 1
|
|
Lock time: 0 (valid anytime)
|
|
Input:
|
|
0: 1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm from d61aa2a5f5bce59d2a57447134f7ce9ce9d29b5c471f4bf747c43bf82aa26c2a:1 123.45678 mBTC sig ok
|
|
Output:
|
|
0: 1KissFDVu2wAYWPRm4UGh5ZCDU9sE9an8T receives 123.35678 mBTC
|
|
Total input 123.45678 mBTC
|
|
Total output 123.35678 mBTC
|
|
Total fees 0.10000 mBTC
|
|
01000000012a6ca22af83bc447f74b1f475c9bd2e99ccef7347144572a9de5bcf5a5a21ad6010000008b48304502210084fd73b302520381dea1885efda58bc446653998864db7a2cd04906fc6d5536302206325303c8e50f84d25c95eff2849441382d4aafb2f678f636a6d164b721bf0f101410479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8ffffffff013e3abc00000000001976a914cd5dc792f0abb0aa8ba4ca36c9fe5eda8e495ff988ac00000000
|
|
all incoming transaction values validated
|
|
|
|
Wow! It worked! (It wrote the output as hex because of the ".hex" suffix.)
|
|
|
|
So why not just broadcast this transaction and collect our winnings? Well, the coins have already been spent. Oh well.
|
|
|
|
Note that pycoin uses a deterministic algorithm to create the signatures, so if you try this at home, you will get the exact same transaction with the exact same 0995cf6f55e1cf22f7c31f5ad52d111e897b0b9b7e37a1bb755a470324b4a2c4 hash.
|
|
|
|
|
|
[PIZZA]: https://bitcointalk.org/index.php?topic=137.0
|
|
|
|
--------------
|
|
|
|
You can also use pycoin to create and validate keys programmatically.
|
|
|
|
|
|
>>> from pycoin.key import Key
|
|
>>> k = Key.from_text("1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH")
|
|
>>> print(k.address())
|
|
1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
|
|
>>> print(k.hash160())
|
|
b'u\x1ev\xe8\x19\x91\x96\xd4T\x94\x1cE\xd1\xb3\xa3#\xf1C;\xd6'
|
|
>>> from pycoin.serialize import b2h
|
|
>>> print(b2h(k.hash160()))
|
|
751e76e8199196d454941c45d1b3a323f1433bd6
|
|
|
|
Compare to using ku:
|
|
|
|
$ ku 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
|
|
|
|
input : 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
|
|
network : Bitcoin mainnet
|
|
netcode : BTC
|
|
hash160 : 751e76e8199196d454941c45d1b3a323f1433bd6
|
|
Bitcoin mainnet address : 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
|
|
|
|
>>> from pycoin.key.validate import is_address_valid
|
|
>>> v = is_address_valid("1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH")
|
|
>>> print(v)
|
|
'BTC'
|
|
# you can also specify certain networks, like Litecoin
|
|
>>> v = is_address_valid("1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH", allowable_netcodes=["LTC"])
|
|
>>> print(v)
|
|
None
|
|
# not a valid LTC address
|
|
>>> v = is_address_valid("1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH", allowable_types=["pay_to_script"])
|
|
>>> print(v)
|
|
None
|
|
# not a valid pay-to-script address (they start with a "3")
|
|
>>> v = is_address_valid("1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH", allowable_types=["address"])
|
|
>>> print(v)
|
|
BTC
|
|
|
|
>>> from pycoin.key import Key
|
|
>>> k = Key(secret_exponent=1)
|
|
>>> print(k.address())
|
|
1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
|
|
>>> print(k.wif())
|
|
KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
|
|
>>> print(k.as_text())
|
|
KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
|
|
|
|
$ ku KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
|
|
|
|
input : KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
|
|
network : Bitcoin mainnet
|
|
netcode : BTC
|
|
secret exponent : 1
|
|
hex : 1
|
|
wif : KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
|
|
uncompressed : 5HpHagT65TZzG1PH3CSu63k8DbpvD8s5ip4nEB3kEsreAnchuDf
|
|
public pair x : 55066263022277343669578718895168534326250603453777594175500187360389116729240
|
|
public pair y : 32670510020758816978083085130507043184471273380659243275938904335757337482424
|
|
x as hex : 79be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
|
|
y as hex : 483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
|
|
y parity : even
|
|
key pair as sec : 0279be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
|
|
uncompressed : 0479be667ef9dcbbac55a06295ce870b07029bfcdb2dce28d959f2815b16f81798
|
|
483ada7726a3c4655da4fbfc0e1108a8fd17b448a68554199c47d08ffb10d4b8
|
|
hash160 : 751e76e8199196d454941c45d1b3a323f1433bd6
|
|
uncompressed : 91b24bf9f5288532960ac687abb035127b1d28a5
|
|
Bitcoin mainnet address : 1BgGZ9tcN4rm9KBzDn7KprQz87SZ26SAMH
|
|
Bitcoin mainnet uncompressed : 1EHNa6Q4Jz2uvNExL497mE43ikXhwF6kZm
|
|
|
|
Different networks have different representations of the same WIF.
|
|
|
|
$ ku -W 1
|
|
KwDiBf89QgGbjEhKnhXJuH7LrciVrZi3qYjgd9M7rFU73sVHnoWn
|
|
$ ku -W -n XTN 1
|
|
cMahea7zqjxrtgAbB7LSGbcQUr1uX1ojuat9jZodMN87JcbXMTcA
|
|
$ ku -W 1 -n DOGE
|
|
QNcdLVw8fHkixm6NNyN6nVwxKek4u7qrioRbQmjxac5TVoTtZuot
|
|
$ ku -W 1 -n LTC
|
|
T33ydQRKp4FCW5LCLLUB7deioUMoveiwekdwUwyfRDeGZm76aUjV
|
|
|
|
--------------
|
|
|
|
Fetch, parse a tx, stream a tx
|
|
|
|
$ tx 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098 -o tx.out
|
|
all incoming transaction values validated
|
|
|
|
>>> from pycoin.tx import Tx
|
|
>>> tx = Tx.parse(open("tx.out", "rb"))
|
|
>>> print(tx)
|
|
Tx [0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098]
|
|
>>> print(tx.txs_in[0])
|
|
TxIn<COINBASE: 04ffff001d0104>
|
|
>>> print(tx.txs_out[0])
|
|
TxOut<5E+4 mbtc "0496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858ee OP_CHECKSIG">
|
|
>>> f1 = open("tx1.out", "wb")
|
|
>>> tx.stream(f1)
|
|
$ ls -l tx1.out
|
|
-rw-r--r-- 1 kiss staff 134 Jun 11 17:02 tx1.out
|
|
$ tx tx1.out
|
|
warning: transaction fees recommendations casually calculated and estimates may be incorrect
|
|
warning: transaction fee lower than (casually calculated) expected value of 0.1 mBTC, transaction might not propogate
|
|
Version: 1 tx hash 0e3e2357e806b6cdb1f70b54c3a3a17b6714ee1f0e68bebb44a74b1efd512098 134 bytes
|
|
TxIn count: 1; TxOut count: 1
|
|
Lock time: 0 (valid anytime)
|
|
Input:
|
|
0: COINBASE 50000.00000 mBTC
|
|
Output:
|
|
0: 12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX receives 50000.00000 mBTC
|
|
Total input 50000.00000 mBTC
|
|
Total output 50000.00000 mBTC
|
|
Total fees 0.00000 mBTC
|
|
01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff0704ffff001d0104ffffffff0100f2052a0100000043410496b538e853519c726a2c91e61ec11600ae1390813a627c66fb8be7947be63c52da7589379515d4e0a604f8141781e62294721166bf621e73a82cbf2342c858eeac00000000
|
|
all incoming transaction values validated
|
|
|
|
|
|
|
|
-----------
|
|
|
|
A simple script to grab and spend coins.
|
|
|
|
#!/usr/bin/env python
|
|
|
|
from pycoin.key import Key
|
|
|
|
from pycoin.key.validate import is_address_valid, is_wif_valid
|
|
from pycoin.services import spendables_for_address
|
|
from pycoin.tx.tx_utils import create_signed_tx
|
|
|
|
def get_address(which):
|
|
while 1:
|
|
print("enter the %s address=> " % which, end='')
|
|
address = input()
|
|
is_valid = is_address_valid(address)
|
|
if is_valid:
|
|
return address
|
|
print("invalid address, please try again")
|
|
|
|
src_address = get_address("source")
|
|
spendables = spendables_for_address(src_address)
|
|
print(spendables)
|
|
|
|
while 1:
|
|
print("enter the WIF for %s=> " % src_address, end='')
|
|
wif = input()
|
|
is_valid = is_wif_valid(wif)
|
|
if is_valid:
|
|
break
|
|
print("invalid wif, please try again")
|
|
|
|
key = Key.from_text(wif)
|
|
if src_address not in (key.address(use_uncompressed=False), key.address(use_uncompressed=True)):
|
|
print("** WIF doesn't correspond to %s" % src_address)
|
|
print("The secret exponent is %d" % key.secret_exponent())
|
|
|
|
dst_address = get_address("destination")
|
|
|
|
tx = create_signed_tx(spendables, payables=[dst_address], wifs=[wif])
|
|
|
|
print("here is the signed output transaction")
|
|
print(tx.as_hex())
|