def analyze_tx(tx_hex_string):
output = {}
# get op_return from transaction
hex = unhexlify(tx_hex_string)
deserializedTransaction = CTransaction.deserialize(hex)
op_return_vout = deserializedTransaction.vout[1].scriptPubKey
# get redeem script
redeem_script = ''
for i in op_return_vout:
script = bytes(i).decode('utf8')
if 'REDEEM' in script:
redeem_script_string = script.replace('REDEEM SCRIPT ', '')
output['redeemScript'] = redeem_script_string
# convert redeem script into list
redeemScript = CScript(unhexlify(redeem_script_string))
redeem_script_array = []
for i in redeemScript:
redeem_script_array.append(i)
# get redeem script hash (hodl address)
p2sh_address = P2SHBitcoinAddress.from_redeemScript(redeemScript)
output['hodlAddress'] = str(p2sh_address)
# get nlocktime from redeem script
nlocktime_hex = b2lx(redeem_script_array[0])
nlocktime = int(nlocktime_hex, 16)
output['nLockTime'] = nlocktime
# get authorized key from redeem script
pubkey = b2x(redeem_script_array[3])
# get address from authorized key
pubkey = unhexlify(pubkey)
P2PKHBitcoinAddress = bitcoin.wallet.P2PKHBitcoinAddress
addr = P2PKHBitcoinAddress.from_pubkey(pubkey)
output['authorizedAddress'] = str(addr)
# get total sent to hodl address
locked_satoshis = 0
for i in deserializedTransaction.vout:
if i.nValue > 0:
sPK = i.scriptPubKey
amount = i.nValue
try:
vout_p2sh_addr = P2SHBitcoinAddress.from_scriptPubKey(sPK)
# rewards only paid to really locked funds
if str(p2sh_address) == str(vout_p2sh_addr):
locked_satoshis += amount
except:
pass
output["lockedSatoshis"] = locked_satoshis
return (output)
def P2SHAddress(self):
return P2SHBitcoinAddress.from_scriptPubKey(self.scriptPubkey())