def main():
# always remember to setup the network
setup('testnet')
# the key that corresponds to the P2WPKH address
priv = PrivateKey("cVdte9ei2xsVjmZSPtyucG43YZgNkmKTqhwiUA8M4Fc3LdPJxPmZ")
pub = priv.get_public_key()
fromAddress = pub.get_segwit_address()
print(fromAddress.to_string())
# amount is needed to sign the segwit input
fromAddressAmount = to_satoshis(0.01)
# UTXO of fromAddress
txid = '13d2d30eca974e8fa5da11b9608fa36905a22215e8df895e767fc903889367ff'
vout = 0
toAddress = P2pkhAddress('mrrKUpJnAjvQntPgz2Z4kkyr1gbtHmQv28')
# create transaction input from tx id of UTXO
txin = TxInput(txid, vout)
# the script code required for signing for p2wpkh is the same as p2pkh
script_code = Script([
'OP_DUP', 'OP_HASH160',
pub.to_hash160(), 'OP_EQUALVERIFY', 'OP_CHECKSIG'
])
# create transaction output
txOut = TxOutput(to_satoshis(0.009), toAddress.to_script_pub_key())
# create transaction without change output - if at least a single input is
# segwit we need to set has_segwit=True
tx = Transaction([txin], [txOut], has_segwit=True)
print("\nRaw transaction:\n" + tx.serialize())
sig = priv.sign_segwit_input(tx, 0, script_code, fromAddressAmount)
tx.witnesses.append(Script([sig, pub.to_hex()]))
# print raw signed transaction ready to be broadcasted
print("\nRaw signed transaction:\n" + tx.serialize())
print("\nTxId:", tx.get_txid())
def main():
# always remember to setup the network
setup('testnet')
# the key that corresponds to the P2WPKH address
priv = PrivateKey('cNho8fw3bPfLKT4jPzpANTsxTsP8aTdVBD6cXksBEXt4KhBN7uVk')
pub = priv.get_public_key()
# the p2sh script and the corresponding address
redeem_script = pub.get_segwit_address().to_script_pub_key()
p2sh_addr = P2shAddress.from_script(redeem_script)
# the UTXO of the P2SH-P2WPKH that we are trying to spend
inp = TxInput('95c5cac558a8b47436a3306ba300c8d7af4cd1d1523d35da3874153c66d99b09', 0)
# exact amount of UTXO we try to spent
amount = 0.0014
# the address to send funds to
to_addr = P2pkhAddress('mvBGdiYC8jLumpJ142ghePYuY8kecQgeqS')
# the output sending 0.001 -- 0.0004 goes to miners as fee -- no change
out = TxOutput(to_satoshis(0.001), to_addr.to_script_pub_key())
# create a tx with at least one segwit input
tx = Transaction([inp], [out], has_segwit=True)
# script code is the script that is evaluated for a witness program type; each
# witness program type has a specific template for the script code
# script code that corresponds to P2WPKH (it is the classic P2PKH)
script_code = pub.get_address().to_script_pub_key()
# calculate signature using the appropriate script code
# remember to include the original amount of the UTXO
sig = priv.sign_segwit_input(tx, 0, script_code, to_satoshis(amount))
# script_sig is the redeem script passed as a single element
inp.script_sig = Script([redeem_script.to_hex()])
# finally, the unlocking script is added as a witness
tx.witnesses.append(Script([sig, pub.to_hex()]))
# print raw signed transaction ready to be broadcasted
print("\nRaw signed transaction:\n" + tx.serialize())
def main():
# always remember to setup the network
setup('testnet')
priv0 = PrivateKey("cN1XE3ESGgdvr4fWsB7L3BcqXncUauF8Fo8zzv4Sm6WrkiGrsxrG")
pub = priv0.get_public_key()
fromAddress = pub.get_segwit_address()
priv1 = PrivateKey("cN1XE3ESGgdvr4fWsB7L3BcqXncUauF8Fo8zzv4Sm6WrkiGrsxrG")
# P2SH Script: OP_M <Public key 1> <Public key 2> ... OP_N OP_CHECKMULTISIG
p2sh_redeem_script = Script(['OP_1', priv1.get_public_key().to_hex(), 'OP_1', 'OP_CHECKMULTISIG'])
toAddress = P2wshAddress.from_script(p2sh_redeem_script)
# set values
txid = 'd222d91e2da368ac38e84aa615c557e4caeacce02aa5dbca10d840fd460fc938'
vout = 0
amount = to_satoshis(0.01764912)
# create transaction input from tx id of UTXO
txin = TxInput(txid, vout)
redeem_script1 = Script(
['OP_DUP', 'OP_HASH160', priv0.get_public_key().to_hash160(), 'OP_EQUALVERIFY', 'OP_CHECKSIG'])
# create transaction output
txOut1 = TxOutput(to_satoshis(0.0001), toAddress.to_script_pub_key())
txOut2 = TxOutput(to_satoshis(0.01744912), fromAddress.to_script_pub_key())
# create transaction
tx = Transaction([txin], [txOut1, txOut2], has_segwit=True)
print("\nRaw transaction:\n" + tx.serialize())
sig1 = priv0.sign_segwit_input(tx, 0, redeem_script1, amount)
tx.witnesses.append(Script([sig1, pub.to_hex()]))
# print raw signed transaction ready to be broadcasted
print("\nRaw signed transaction:\n" + tx.serialize())
print("\nTxId:", tx.get_txid())
def main():
# always remember to setup the network
setup('testnet')
priv1 = PrivateKey("cN1XE3ESGgdvr4fWsB7L3BcqXncUauF8Fo8zzv4Sm6WrkiGrsxrG")
priv2 = PrivateKey("cR8AkcbL2pgBswrHp28AftEznHPPLA86HiTog8MpNCibxwrsUcZ4")
p2wsh_witness_script = Script([
'OP_1',
priv1.get_public_key().to_hex(),
priv2.get_public_key().to_hex(), 'OP_2', 'OP_CHECKMULTISIG'
])
fromAddress = P2wshAddress.from_script(p2wsh_witness_script)
toAddress = P2wpkhAddress.from_address(
"tltc1qedur7y052upuzd7wzh60d2f86szgpuspmml8ce")
# set values
txid = '2042195c40a92353f2ffe30cd0df8d177698560e81807e8bf9174a9c0e98e6c2'
vout = 0
amount = to_satoshis(0.01)
# create transaction input from tx id of UTXO
txin = TxInput(txid, vout)
txOut1 = TxOutput(to_satoshis(0.0001), toAddress.to_script_pub_key())
txOut2 = TxOutput(to_satoshis(0.0098), fromAddress.to_script_pub_key())
tx = Transaction([txin], [txOut1, txOut2], has_segwit=True)
sig1 = priv1.sign_segwit_input(tx, 0, p2wsh_witness_script, amount)
tx.witnesses.append(Script(['OP_0', sig1, p2wsh_witness_script.to_hex()]))
# print raw signed transaction ready to be broadcasted
print("\nRaw signed transaction:\n" + tx.serialize())
print("\nTxId:", tx.get_txid())