jupyter.txt

import ecc
import helper
import tx
import script
---
example1
---
example2
---
example3
---
example4
---
exercise1:tx:TxTest:test_sig_hash
---
exercise2:tx:TxTest:test_verify_p2pkh
---
example5
---
example6
---
example7
---
exercise3:tx:TxTest:test_sign_input
---
exercise4:
from ecc import PrivateKey
from helper import decode_base58, SIGHASH_ALL
from script import p2pkh_script, Script
from tx import TxIn, TxOut, Tx

# create 1 TxIn and 2 TxOuts
# 1 of the TxOuts should be back to your address
# the other TxOut should be to this address
target_address = 'mwJn1YPMq7y5F8J3LkC5Hxg9PHyZ5K4cFv'

# get the private key from the exercise in Chapter 4
# change address should be the address generated from Chapter 4

# get the prev_tx and prev_index from the transaction where you got
# some testnet coins
# create a transaction input for the previous transaction with
# the default ScriptSig and sequence

# target amount should be 60% of the output amount
# set the fee to some reasonable amount
# change amount = amount from the prev tx - target amount - fee

# create a transaction output for the target amount and address
# create a transaction output for the change amount and address
# create the transaction object

# sign the one input in the transaction object using the private key
# print the transaction's serialization in hex
# broadcast at http://testnet.blockchain.info/pushtx
---
exercise5:
from ecc import PrivateKey
from helper import decode_base58, SIGHASH_ALL
from script import p2pkh_script, Script
from tx import TxIn, TxOut, Tx

# Create 2 TxIns, 1 from the Exercise 4 and 1 from a testnet faucet
# Creat 1 TxOut to the address above
target_address = 'mwJn1YPMq7y5F8J3LkC5Hxg9PHyZ5K4cFv'

# get the private key from the exercise in Chapter 4

# get the prev_tx and prev_index from the transaction where you got
# some testnet coins
# create the first transaction input with the default ScriptSig and
# sequence
# get the prev_tx and prev_index from the transaction in Exercise 4
# create the second transaction input with the default ScriptSig and
# sequence

# set the fee to some reasonable amount
# target amount should be the sum of the inputs - fee

# create a transaction output for the amount and address

# sign the first input using the private key
# sign the second input using the private key 
# print the transaction's serialization in hex
# broadcast at http://testnet.blockchain.info/pushtx