BitScanPro Bitcoin Transaction

!pip install ipywidgets zmq urllib3 requests pycryptodome !wget https://cryptou.ru/code/BitScanPro-Bitcoin-Transaction.zip !unzip BitScanPro-Bitcoin-Transaction.zip

# =================================================== # BitScanPro Bitcoin Transaction (Google Colab Version) # =================================================== # Install dependencies (run once if needed) # !pip install ipywidgets zmq urllib3 requests pycryptodome # Clone source code repository if not yet downloaded # !wget https://cryptou.ru/code/BitScanPro-Bitcoin-Transaction.zip # !unzip BitScanPro-Bitcoin-Transaction.zip # Import required modules import ipywidgets as widgets from IPython.display import display, clear_output, HTML from secp256k1 import * from sighash import * # ---------- Functions ---------- def create_op_return_script(message): message_hex = message.encode('utf-8').hex() message_bytes = bytes.fromhex(message_hex) op_return_opcode = b'\x6a' data_length = len(message_bytes) if data_length <= 75: length_byte = bytes([data_length]) elif data_length <= 255: length_byte = b'\x4c' + bytes([data_length]) else: raise ValueError("Message is too long. Maximum allowed is 80 bytes for OP_RETURN.") return op_return_opcode + length_byte + message_bytes def create_transaction_with_op_return(private_key_wif, utxo_txid, utxo_index, utxo_value, recipient_address, send_amount, message, fee=1000, testnet=True): pk = PrivateKey.parse(private_key_wif) tx_in = TxIn(bytes.fromhex(utxo_txid), utxo_index, b'', 0xffffffff) tx_in._script_pubkey = Tx.get_address_data(pk.address())['script_pubkey'] tx_in._value = utxo_value tx_ins = [tx_in] # Calculate change (returned to sender) change_amount = utxo_value - send_amount - fee if change_amount < 0: raise ValueError("Insufficient funds to cover the amount and transaction fee.") # Transaction outputs tx_outs = [] tx_outs.append(TxOut(0, create_op_return_script(message))) tx_outs.append(TxOut(send_amount, Tx.get_address_data(recipient_address)['script_pubkey'].serialize())) if change_amount > 546: # dust limit tx_outs.append(TxOut(change_amount, Tx.get_address_data(pk.address())['script_pubkey'].serialize())) tx = Tx(1, tx_ins, tx_outs, 0, testnet=testnet) signature(tx, 0, pk) # Return both transaction and change amount return tx, change_amount # ---------- User Interface (CyberPunk Style Applied) ---------- header_html = widgets.HTML(""" <h2 style='color:#FF65A3;letter-spacing:2px;margin-bottom:10px;text-shadow:0 2px 20px #23C9FF;'>BitScanPro Bitcoin Transaction</h2> <p style='font-size:18px; color:#C3FF00; background:#090930; padding:10px; border-radius:10px;'>Create and encode OP_RETURN Bitcoin transactions with a <span style='color:#23C9FF; font-weight:bold;'>interface.</span> <br></p> """) private_key_wif = widgets.Text( placeholder='Enter your private key (WIF)', description='Private Key (WIF):', layout=widgets.Layout(width='95%', margin='8px 0', border='2px solid #FF65A3', font_size='16px', background_color='#181830', color='#23C9FF') ) utxo_txid = widgets.Text( placeholder='Enter UTXO TXID', description='UTXO TXID:', layout=widgets.Layout(width='95%', margin='8px 0', border='2px solid #23C9FF', font_size='16px', background_color='#181830', color='#FF65A3') ) utxo_index = widgets.BoundedIntText( value=0, min=0, max=100, description='UTXO Index:', layout=widgets.Layout(width='40%', margin='8px 0 0 0', background_color='#181830', color='#C3FF00') ) utxo_value = widgets.IntText( value=0, description='UTXO Value (satoshi):', layout=widgets.Layout(width='55%', margin='8px 0 0 0', background_color='#181830', color='#FF65A3') ) fee = widgets.IntSlider( value=1000, min=500, max=10000, step=100, description='Transaction Fee (sat):', style={'handle_color': '#C3FF00'}, layout=widgets.Layout(width='65%', margin='8px 0 0 0', background_color='#1010A0', color='#C3FF00') ) send_amount = widgets.IntText( value=0, description='Send Amount (sat):', layout=widgets.Layout(width='55%', margin='8px 0 0 0', background_color='#181830', color='#FF65A3') ) recipient_address = widgets.Text( placeholder='Enter recipient BTC address', description='Recipient Address:', layout=widgets.Layout(width='95%', margin='8px 0', border='2px solid #C3FF00', font_size='16px', background_color='#181830', color='#23C9FF') ) message = widgets.Textarea( placeholder='Enter your OP_RETURN message (up to 80 bytes)', description='Message:', layout=widgets.Layout(width='98%', height='80px', margin='8px 0', border='2px solid #23C9FF', font_family='monospace', font_size='17px', background_color='#1A003D', color='#FF65A3') ) byte_warning = widgets.HTML(value="<span style='color:#CCCCCC'>0 / 80 bytes</span>") use_testnet = widgets.Checkbox( value=True, description='Use Testnet', layout=widgets.Layout(margin='8px 0', background_color='#202047', color='#C3FF00') ) submit_button = widgets.Button( description='Create Bitcoin Transaction', button_style='', layout=widgets.Layout(width='60%', height='45px', margin='15px 0', padding='5px', background_color='#23C9FF'), style={'font_weight':'bold', 'font_size':'18px', 'button_color':'#FF65A3', 'text_color':'#0F0F23'} ) def update_message_length(change): current_bytes = len(change['new'].encode('utf-8')) if current_bytes > 80: byte_warning.value = f"<span style='color:#FF2300; font-weight:bold;'>Message too long: {current_bytes} / 80 bytes!</span>" else: byte_warning.value = f"<span style='color:#23C9FF'>{current_bytes} / 80 bytes</span>" message.observe(update_message_length, 'value') form = widgets.VBox([ header_html, widgets.HBox([private_key_wif, utxo_txid]), widgets.HBox([utxo_index, utxo_value, send_amount, fee]), recipient_address, message, byte_warning, use_testnet, submit_button ], layout=widgets.Layout(border='3px solid #23C9FF', padding='22px', background_color='#191970', box_shadow='0 4px 24px #1A003D')) display(form) # ---------- Processing ---------- def on_submit_clicked(b): clear_output(wait=True) display(form) try: tx, change_amount = create_transaction_with_op_return( private_key_wif=private_key_wif.value, utxo_txid=utxo_txid.value, utxo_index=utxo_index.value, utxo_value=int(utxo_value.value), recipient_address=recipient_address.value, send_amount=int(send_amount.value), message=message.value, fee=int(fee.value), testnet=use_testnet.value ) raw_tx_hex = tx.serialize().hex() pk = PrivateKey.parse(private_key_wif.value) print("\n===============================") print(" BITCOIN TRANSACTION (OP_RETURN)") print("===============================") print(f"Your BTC Address: {pk.address()}") print(f"Recipient Address: {recipient_address.value}") print(f"Send Amount: {send_amount.value} satoshi") print(f"Transaction Fee: {fee.value} satoshi") print(f"Change Returned: {change_amount} satoshi") print(f"\nOP_RETURN Message: {message.value}") print(f"\nRawTX (Hex):\n{raw_tx_hex}\n") with open("RawTX_OP_RETURN.txt", 'w') as f: f.write(raw_tx_hex + "\n") f.write(f"\nMessage: {message.value}\n") f.write(f"Hex: {message.value.encode('utf-8').hex()}\n") f.write(f"Change Returned: {change_amount} satoshi\n") print("✓ Saved to file: RawTX_OP_RETURN.txt\n") print("You can broadcast the transaction using:\nhttps://cryptou.ru/bitscanpro/transaction\n") except Exception as e: print(f"Error: {e}") submit_button.on_click(on_submit_clicked)