[PYTHON] Connect to the Bitcoin network using pybitcoin tools

What is pybitcoin tools

• Library and command utility for interacting with the Bitcoin network
• Built by Ethereum founder Vitalik Buterin
• Can also be executed with the pybitcointools command
• Can connect to Electrum (a lightweight Bitcoin client where volunteers provide old Bitcoin client nodes via API)

Reference: https://github.com/vbuterin/pybitcointools

Installation (bitcoin)

python

$ pip install bitcoin
Collecting bitcoin
  Downloading bitcoin-1.1.42.tar.gz
Building wheels for collected packages: bitcoin
  Running setup.py bdist_wheel for bitcoin ... done
  Stored in directory: 
　：
　：
Successfully built bitcoin
Installing collected packages: bitcoin
Successfully installed bitcoin-1.1.42

Operation check (bitcoin)

• First, import from python code as bitcoin library

$ ipython
[1] from bitcoin import *
#[The string that is the source of the private key in the wallet]
[2] priv = sha256('some big long brainwallet password')
[3] priv
Out[3]: '57c617d9b4e1f7af6ec97ca2ff57e94a28279a7eedd4d12a99fa11170e94f5a4'
#Generate a public key from a private key
[4] pub = privtopub(priv)
[5] pub
Out[5]: '0420f34c2786b4bae593e22596631b025f3ff46e200fc1d4b52ef49bbdc2ed00b26c584b7e32523fb01be2294a1f8a5eb0cf71a203cc034ced46ea92a8df16c6e9'
#Generate transaction address from public key
[6] addr = pubtoaddr(pub)
[7] addr
Out[7]: '1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6'
[8] h = history(addr)
[9] h
Out[9]: 
[{'address': u'1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6',
  'block_height': 262537,
  'output': u'4cc806bb04f730c445c60b3e0f4f44b54769a1c196ca37d8d4002135e4abd171:1',
  'spend': u'772bebdf445d719d90d52a3029d27e90aa8f26eca8d431fc77cc487c377a89c4:1',
  'value': 50000},
 {'address': u'1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6',
  'block_height': 363957,
  'output': u'b0aad2e5184099b20d53100a678e9bec2eab1b0710fb06930f333387492a82b3:0',
  'spend': u'05551814576ba084a0736abd8df411061c5ea7e4ae72d334317f5504f6b331d6:0',
  'value': 500000},
 {'address': u'1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6',
  'block_height': 262537,
  'output': u'97f7c7d8ac85e40c255f8a763b6cd9a68f3a94d2e93e8bfa08f977b92e55465e:0',
  'spend': u'772bebdf445d719d90d52a3029d27e90aa8f26eca8d431fc77cc487c377a89c4:0',
  'value': 50000}]
[10] outs = [{'value': 100, 'address': '16iw1MQ1sy1DtRPYw3ao1bCamoyBJtRB4t'}]
#Create a deal
[11] outs
Out[11]: [{'address': '16iw1MQ1sy1DtRPYw3ao1bCamoyBJtRB4t', 'value': 90000}]
[12] tx = mktx(h,outs)
#Digitally sign
[13] tx
Out[13]: '010000000371d1abe4352100d4d837ca96c1a16947b5444f0f3e0bc645c430f704bb06c84c0100000000ffffffffb3822a498733330f9306fb10071bab2eec9b8e670a10530db2994018e5d2aab00000000000ffffffff5e46552eb977f908fa8b3ee9d2943a8fa6d96c3b768a5f250ce485acd8c7f7970000000000ffffffff01905f0100000000001976a9143ec6c3ed8dfc3ceabcc1cbdb0c5aef4e2d02873c88ac00000000'
[14] tx2 = sign(tx,0,priv)
[15] tx2
Out[15]: '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'
[16] tx3 = sign(tx2,1,priv)
[17] tx3
Out[17]: '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'
#Broadcast a transaction
[18] pushtx(tx3)
Out[18]: 'Transaction Submitted'

Installation (pybitcointools)

python

$ pip install pybitcointools
Collecting pybitcointools
  Downloading pybitcointools-1.1.15.tar.gz
Building wheels for collected packages: pybitcointools
  Running setup.py bdist_wheel for pybitcointools ... done
  Stored in directory: /Users/abenben/Library/Caches/pip/wheels/22/5f/48/7410a0e03801249fcc708771586cd5970d1105fa0d9d67d3d6
　：
　：
Successfully built pybitcointools
Installing collected packages: pybitcointools
Successfully installed pybitcointools-1.1.15

Operation check (pybitcointools command)

I tried running the sample command on GitHub of pybitcointools

• Note: The history command took a lot of time. </ Font>

$ #Generate random numbers
$ pybtctool random_electrum_seed
e2221d71720a90f3167f5465d014feee

$ #Create a private key
$ pybtctool electrum_privkey e2221d71720a90f3167f5465d014feee 0 0
5c58bd2955c83b015f45cd62416f417e3821bb2a16745dae19d2aef0c97a2de9

$ #Create a public key from a private key
$ pybtctool electrum_mpk e2221d71720a90f3167f5465d014feee
05d54161b92b112718ac2de6af3ab6801fa8f268581c134f81432e2a37606ad55c9a8c7260b6bef22578874f9dcd93410ad0ea164d0e75c0b8b126a6ce76ed2b

$ pybtctool bip32_master_key 21456t243rhgtucyadh3wgyrcubw3grydfbng
xprv9s21ZrQH143K2napkeoHT48gWmoJa89KCQj4nqLfdGybyWHP9Z8jvCGzuEDv4ihCyoed7RFPNbc9NxoSF7cAvH9AaNSvepUaeqbSpJZ4rbT

$ pybtctool bip32_ckd xprv9s21ZrQH143K2napkeoHT48gWmoJa89KCQj4nqLfdGybyWHP9Z8jvCGzuEDv4ihCyoed7RFPNbc9NxoSF7cAvH9AaNSvepUaeqbSpJZ4rbT 0
xprv9vfzYrpwo7QHFdtrcvsSCTrBESFPUf1g7NRvayy1QkEfUekpDKLfqvHjgypF5w3nAvnwPjtQUNkyywWNkLbiUS95khfHCzJXFkLEdwRepbw

$ pybtctool bip32_privtopub xprv9s21ZrQH143K2napkeoHT48gWmoJa89KCQj4nqLfdGybyWHP9Z8jvCGzuEDv4ihCyoed7RFPNbc9NxoSF7cAvH9AaNSvepUaeqbSpJZ4rbT
xpub661MyMwAqRbcFGfHrgLHpC5R4odnyasAZdefbDkHBcWarJcXh6SzTzbUkWuhnP142ZFdKdAJSuTSaiGDYjvm7bCLmA8DZqksYjJbYmcgrYF

$ pybtctool sha256 'some big long brainwallet password' | \
   pybtctool -s privtoaddr | \
    pybtctool -s history | jq
[
  {
    "output": "4cc806bb04f730c445c60b3e0f4f44b54769a1c196ca37d8d4002135e4abd171:1",
    "block_height": 262537,
    "spend": "772bebdf445d719d90d52a3029d27e90aa8f26eca8d431fc77cc487c377a89c4:1",
    "value": 50000,
    "address": "1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6"
  },
  {
    "output": "b0aad2e5184099b20d53100a678e9bec2eab1b0710fb06930f333387492a82b3:0",
    "block_height": 363957,
    "spend": "05551814576ba084a0736abd8df411061c5ea7e4ae72d334317f5504f6b331d6:0",
    "value": 500000,
    "address": "1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6"
  },
  {
    "output": "97f7c7d8ac85e40c255f8a763b6cd9a68f3a94d2e93e8bfa08f977b92e55465e:0",
    "block_height": 262537,
    "spend": "772bebdf445d719d90d52a3029d27e90aa8f26eca8d431fc77cc487c377a89c4:0",
    "value": 50000,
    "address": "1CQLd3bhw4EzaURHbKCwM5YZbUQfA4ReY6"
  }
]

$ pybtctool sha256 123 | \
   pybtctool -s changebase 16 256 | \
    pybtctool -b changebase 256 16
a665a45920422f9d417e4867efdc4fb8a04a1f3fff1fa07e998e86f7f7a27ae3

$ pybtctool unspent 1FxkfJQLJTXpW6QmxGT6oF43ZH959ns8Cq | \
   pybtctool -j select 200000001 | \
    pybtctool -j mksend 1EXoDusjGwvnjZUyKkxZ4UHEf77z6A5S4P:20000 1FxkfJQLJTXpW6QmxGT6oF43ZH959ns8Cq 1000 | pybtctool -s signall 805cd74ca322633372b9bfb857f3be41db0b8de43a3c44353b238c0acff9d523
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

$ pybtctool history 1EXoDusjGwvnjZUyKkxZ4UHEf77z6A5S4P | \
   pybtctool -j multiaccess value | \
    pybtctool -j sum
Fetching more transactions... 50
Fetching more transactions... 100
Fetching more transactions... 150
　：
　：
625216206372

$ pybtctool history 1EXoDusjGwvnjZUyKkxZ4UHEf77z6A5S4P | \
   pybtctool -j count
Fetching more transactions... 50
Fetching more transactions... 100
Fetching more transactions... 150
　：
　：
6198