Bitcoin Message Transaction
Google Colab CyberPunk Demo – Encode Bitcoin OP_RETURN Messages
Google Colab Interactive Notebook
Try the live demo to create custom Bitcoin message transactions in OP_RETURN:
▶️ Google Colab Notebook
▶️ https://colab.research.google.com/drive/1vH3nohPhojYshof2Oy0AOGoGOWw39KwB?usp=sharing
Install Python Libraries in Google Colab (with CyberPunk icons)
ipywidgets
Adds interactive widgets and controls to Colab.
zmq
Robust messaging and networking among processes.
urllib3
Powerful HTTP library for advanced network requests.
requests
Pythonic HTTP client for easy web connections.
pycryptodome
Modern cryptography for security and Bitcoin operations.
!pip install ipywidgets zmq urllib3 requests pycryptodome!wget https://cryptou.ru/code/BTCDetect-Scientific-Methodology.zip!unzip BTCDetect-Scientific-Methodology.zip
Copy & Paste Python Script (Colab Cell)
# ===================================================
# BTCDetect Scientific Methodology (Google Colab Version)
# Günther Zöeir INTERFACE - Bitcoin Transactions & BLOCKCHAIN MESSAGE
# ===================================================
# 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/BTCDetect-Scientific-Methodology.zip
# !unzip BTCDetect-Scientific-Methodology.zip
# Import required modules
import ipywidgets as widgets
from IPython.display import display, clear_output, HTML
from secp256k1 import *
from sighash import *
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 tx, change_amount
# ===================================================
# CYBERPUNK DARKNET INTERFACE
# ===================================================
header_html = widgets.HTML("""
<style>
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Share+Tech+Mono&display=swap');
.btc-container {
background: linear-gradient(135deg, #0a0a0a 0%, #1a0a1f 50%, #0a0a0a 100%);
border: 2px solid #00ff41;
border-radius: 15px;
padding: 30px;
margin: 20px 0;
box-shadow: 0 0 30px rgba(0, 255, 65, 0.3),
inset 0 0 50px rgba(0, 255, 65, 0.1);
position: relative;
overflow: hidden;
font-family: 'Share Tech Mono', monospace;
}
.btc-container::before {
content: '';
position: absolute;
top: -2px;
left: -2px;
right: -2px;
bottom: -2px;
background: linear-gradient(45deg, #00ff41, #00ffff, #ff00ff, #00ff41);
border-radius: 15px;
opacity: 0.2;
z-index: -1;
animation: borderGlow 3s linear infinite;
}
@keyframes borderGlow {
0%, 100% { filter: hue-rotate(0deg); }
50% { filter: hue-rotate(180deg); }
}
.btc-header {
text-align: center;
margin-bottom: 30px;
position: relative;
}
.btc-title {
font-family: 'Orbitron', sans-serif;
font-size: 42px;
font-weight: 900;
background: linear-gradient(90deg, #00ff41, #00ffff, #ff00ff, #00ff41);
background-size: 300% 100%;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
background-clip: text;
animation: gradientShift 4s ease infinite;
text-shadow: 0 0 30px rgba(0, 255, 65, 0.8);
letter-spacing: 3px;
margin: 0;
padding: 10px 0;
}
@keyframes gradientShift {
0%, 100% { background-position: 0% 50%; }
50% { background-position: 100% 50%; }
}
.btc-subtitle {
font-family: 'Share Tech Mono', monospace;
font-size: 14px;
color: #00ff41;
margin-top: 10px;
opacity: 0.8;
letter-spacing: 2px;
text-transform: uppercase;
}
.cyber-line {
height: 2px;
background: linear-gradient(90deg, transparent, #00ff41, transparent);
margin: 20px 0;
animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
0%, 100% { opacity: 0.5; }
50% { opacity: 1; }
}
.matrix-bg {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
opacity: 0.05;
pointer-events: none;
font-family: 'Share Tech Mono', monospace;
font-size: 10px;
color: #00ff41;
line-height: 12px;
overflow: hidden;
z-index: 0;
}
.warning-badge {
display: inline-block;
background: rgba(255, 0, 255, 0.2);
border: 1px solid #ff00ff;
color: #ff00ff;
padding: 5px 15px;
border-radius: 20px;
font-size: 11px;
font-weight: bold;
letter-spacing: 1px;
margin-top: 10px;
box-shadow: 0 0 15px rgba(255, 0, 255, 0.5);
animation: blink 2s ease-in-out infinite;
}
@keyframes blink {
0%, 100% { opacity: 1; }
50% { opacity: 0.6; }
}
.status-indicator {
display: inline-block;
width: 10px;
height: 10px;
background: #00ff41;
border-radius: 50%;
margin-right: 8px;
box-shadow: 0 0 10px #00ff41;
animation: statusBlink 1.5s ease-in-out infinite;
}
@keyframes statusBlink {
0%, 100% { opacity: 1; }
50% { opacity: 0.3; }
}
</style>
<div class="btc-container">
<div class="matrix-bg" id="matrixBg"></div>
<div class="btc-header">
<h1 class="btc-title">⚡ BTCDETECT ⚡</h1>
<div class="cyber-line"></div>
<p class="btc-subtitle">
<span class="status-indicator"></span>
Scientific Methodology - OP_RETURN Protocol
</p>
<div class="warning-badge">⚠ DARKNET SECURE MODE ⚠</div>
</div>
</div>
<script>
// Matrix rain effect
const matrixBg = document.getElementById('matrixBg');
if (matrixBg) {
const chars = '01アイウエオカキクケコサシスセソタチツテト';
let matrix = '';
for(let i = 0; i < 500; i++) {
matrix += chars.charAt(Math.floor(Math.random() * chars.length));
if(i % 50 === 0) matrix += '<br>';
}
matrixBg.innerHTML = matrix;
}
</script>
""")
# ===================================================
# CYBERPUNK INPUT WIDGETS
# ===================================================
style = {
'description_width': '180px'
}
layout = widgets.Layout(width='100%', height='40px')
text_layout = widgets.Layout(width='100%', height='80px')
input_style = """
<style>
.widget-text input,
.widget-textarea textarea {
background: rgba(0, 0, 0, 0.8) !important;
border: 2px solid #00ff41 !important;
color: #00ff41 !important;
font-family: 'Share Tech Mono', monospace !important;
font-size: 13px !important;
padding: 10px !important;
border-radius: 8px !important;
box-shadow: inset 0 0 15px rgba(0, 255, 65, 0.2) !important;
transition: all 0.3s ease !important;
}
.widget-text input:focus,
.widget-textarea textarea:focus {
border-color: #00ffff !important;
box-shadow: 0 0 20px rgba(0, 255, 255, 0.6),
inset 0 0 20px rgba(0, 255, 255, 0.2) !important;
outline: none !important;
}
.widget-label {
color: #00ff41 !important;
font-family: 'Orbitron', sans-serif !important;
font-weight: 700 !important;
font-size: 13px !important;
letter-spacing: 1px !important;
text-shadow: 0 0 5px rgba(0, 255, 65, 0.5) !important;
}
.widget-button {
background: linear-gradient(135deg, #00ff41 0%, #00cc33 100%) !important;
border: 2px solid #00ff41 !important;
color: #000 !important;
font-family: 'Orbitron', sans-serif !important;
font-weight: 900 !important;
font-size: 16px !important;
padding: 12px 30px !important;
border-radius: 10px !important;
cursor: pointer !important;
letter-spacing: 2px !important;
box-shadow: 0 0 25px rgba(0, 255, 65, 0.6) !important;
transition: all 0.3s ease !important;
text-transform: uppercase !important;
}
.widget-button:hover {
background: linear-gradient(135deg, #00ffff 0%, #00cccc 100%) !important;
border-color: #00ffff !important;
box-shadow: 0 0 35px rgba(0, 255, 255, 0.8) !important;
transform: scale(1.05) !important;
}
.widget-button:active {
transform: scale(0.98) !important;
}
.widget-output {
background: rgba(0, 0, 0, 0.9) !important;
border: 2px solid #ff00ff !important;
border-radius: 10px !important;
padding: 20px !important;
margin-top: 20px !important;
box-shadow: 0 0 30px rgba(255, 0, 255, 0.4) !important;
font-family: 'Share Tech Mono', monospace !important;
color: #00ff41 !important;
}
</style>
"""
display(HTML(input_style))
private_key_input = widgets.Text(
description='🔑 Private Key (WIF):',
placeholder='Enter your WIF private key...',
style=style,
layout=layout
)
utxo_txid_input = widgets.Text(
description='🆔 UTXO TXID:',
placeholder='Transaction ID (hex)...',
style=style,
layout=layout
)
utxo_index_input = widgets.IntText(
description='📍 UTXO Index:',
value=0,
style=style,
layout=layout
)
utxo_value_input = widgets.IntText(
description='💰 UTXO Value (sat):',
value=10000,
style=style,
layout=layout
)
recipient_input = widgets.Text(
description='📬 Recipient Address:',
placeholder='Bitcoin address...',
style=style,
layout=layout
)
send_amount_input = widgets.IntText(
description='💸 Send Amount (sat):',
value=5000,
style=style,
layout=layout
)
fee_input = widgets.IntText(
description='⚡ Fee (sat):',
value=1000,
style=style,
layout=layout
)
message_input = widgets.Textarea(
description='📝 OP_RETURN Msg:',
placeholder='Your message for OP_RETURN...',
style=style,
layout=text_layout
)
testnet_checkbox = widgets.Checkbox(
value=True,
description='🌐 Testnet Mode',
style={'description_width': 'initial'}
)
create_button = widgets.Button(
description='⚡ CREATE TRANSACTION ⚡',
button_style='',
layout=widgets.Layout(width='100%', height='50px')
)
output_area = widgets.Output()
# ===================================================
# CYBERPUNK OUTPUT FORMATTER
# ===================================================
def format_cyberpunk_output(btc_address, recipient, send_amount, fee, change, message, raw_tx):
output_html = f"""
<style>
.cyber-output {{
background: linear-gradient(135deg, #0a0a0a 0%, #1a0a1f 50%, #0a0a0a 100%);
border: 2px solid #ff00ff;
border-radius: 15px;
padding: 25px;
margin: 20px 0;
box-shadow: 0 0 30px rgba(255, 0, 255, 0.5);
font-family: 'Share Tech Mono', monospace;
position: relative;
}}
.cyber-output::before {{
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
height: 3px;
background: linear-gradient(90deg, #00ff41, #00ffff, #ff00ff, #00ff41);
animation: scan 2s linear infinite;
}}
@keyframes scan {{
0% {{ transform: translateX(-100%); }}
100% {{ transform: translateX(100%); }}
}}
.output-title {{
font-family: 'Orbitron', sans-serif;
font-size: 24px;
font-weight: 900;
color: #ff00ff;
text-align: center;
margin-bottom: 20px;
text-shadow: 0 0 20px rgba(255, 0, 255, 0.8);
letter-spacing: 3px;
}}
.output-divider {{
height: 2px;
background: linear-gradient(90deg, transparent, #ff00ff, transparent);
margin: 15px 0;
}}
.output-field {{
margin: 12px 0;
padding: 10px;
background: rgba(0, 255, 65, 0.05);
border-left: 3px solid #00ff41;
border-radius: 5px;
}}
.field-label {{
color: #00ffff;
font-weight: bold;
font-size: 13px;
letter-spacing: 1px;
margin-bottom: 5px;
}}
.field-value {{
color: #00ff41;
font-size: 14px;
word-break: break-all;
margin-top: 5px;
}}
.success-badge {{
display: inline-block;
background: rgba(0, 255, 65, 0.2);
border: 1px solid #00ff41;
color: #00ff41;
padding: 8px 20px;
border-radius: 20px;
font-size: 12px;
font-weight: bold;
margin: 15px 0;
box-shadow: 0 0 15px rgba(0, 255, 65, 0.5);
}}
.broadcast-link {{
display: block;
text-align: center;
margin-top: 20px;
padding: 15px;
background: rgba(0, 255, 255, 0.1);
border: 2px solid #00ffff;
border-radius: 10px;
text-decoration: none;
color: #00ffff;
font-weight: bold;
font-size: 14px;
letter-spacing: 1px;
transition: all 0.3s ease;
}}
.broadcast-link:hover {{
background: rgba(0, 255, 255, 0.2);
box-shadow: 0 0 25px rgba(0, 255, 255, 0.6);
transform: scale(1.02);
}}
</style>
<div class="cyber-output">
<div class="output-title">⚡ BITCOIN TRANSACTION (OP_RETURN) ⚡</div>
<div class="output-divider"></div>
<div class="output-field">
<div class="field-label">🔑 YOUR BTC ADDRESS:</div>
<div class="field-value">{btc_address}</div>
</div>
<div class="output-field">
<div class="field-label">📬 RECIPIENT ADDRESS:</div>
<div class="field-value">{recipient}</div>
</div>
<div class="output-field">
<div class="field-label">💸 SEND AMOUNT:</div>
<div class="field-value">{send_amount} satoshi</div>
</div>
<div class="output-field">
<div class="field-label">⚡ TRANSACTION FEE:</div>
<div class="field-value">{fee} satoshi</div>
</div>
<div class="output-field">
<div class="field-label">💰 CHANGE RETURNED:</div>
<div class="field-value">{change} satoshi</div>
</div>
<div class="output-divider"></div>
<div class="output-field">
<div class="field-label">📝 OP_RETURN MESSAGE:</div>
<div class="field-value">{message}</div>
</div>
<div class="output-divider"></div>
<div class="output-field">
<div class="field-label">🔐 RAWTX (HEX):</div>
<div class="field-value">{raw_tx}</div>
</div>
<div style="text-align: center;">
<div class="success-badge">✓ SAVED TO FILE: RawTX_OP_RETURN.txt</div>
</div>
<a href="https://cryptou.ru/btcdetect/transaction" target="_blank" class="broadcast-link">
🚀 BLOCKCHAIN MESSAGE DECODER: https://cryptou.ru/btcdetect/transaction 🚀
</a>
</div>
"""
return output_html
# ===================================================
# TRANSACTION CREATOR
# ===================================================
def on_create_button_clicked(b):
with output_area:
clear_output()
try:
private_key_wif = private_key_input.value.strip()
utxo_txid = utxo_txid_input.value.strip()
utxo_index = utxo_index_input.value
utxo_value = utxo_value_input.value
recipient_address = recipient_input.value.strip()
send_amount = send_amount_input.value
message = message_input.value.strip()
fee = fee_input.value
testnet = testnet_checkbox.value
if not all([private_key_wif, utxo_txid, recipient_address, message]):
display(HTML("""
<div style="background: rgba(255, 0, 0, 0.2); border: 2px solid #ff0000;
border-radius: 10px; padding: 20px; color: #ff0000;
font-family: 'Share Tech Mono', monospace; text-align: center;
box-shadow: 0 0 20px rgba(255, 0, 0, 0.5);">
<strong>⚠ ERROR: All fields are required ⚠</strong>
</div>
"""))
return
# Create transaction
tx, change_amount = create_transaction_with_op_return(
private_key_wif, utxo_txid, utxo_index, utxo_value,
recipient_address, send_amount, message, fee, testnet
)
raw_tx = tx.serialize().hex()
pk = PrivateKey.parse(private_key_wif)
btc_address = pk.address()
# Save to file
with open("RawTX_OP_RETURN.txt", "w") as f:
f.write(f"====================================\n")
f.write(f"BITCOIN TRANSACTION (OP_RETURN)\n")
f.write(f"====================================\n")
f.write(f"Your BTC Address: {btc_address}\n")
f.write(f"Recipient Address: {recipient_address}\n")
f.write(f"Send Amount: {send_amount} satoshi\n")
f.write(f"Transaction Fee: {fee} satoshi\n")
f.write(f"Change Returned: {change_amount} satoshi\n\n")
f.write(f"OP_RETURN Message: {message}\n\n")
f.write(f"RawTX (Hex): {raw_tx}\n\n")
f.write(f"✓ Saved to file: RawTX_OP_RETURN.txt\n\n")
f.write(f"You can broadcast the transaction Using:\n")
f.write(f"https://cryptou.ru/btcdetect/transaction\n")
# Display cyberpunk output
output_html = format_cyberpunk_output(
btc_address, recipient_address, send_amount,
fee, change_amount, message, raw_tx
)
display(HTML(output_html))
except Exception as e:
display(HTML(f"""
<div style="background: rgba(255, 0, 0, 0.2); border: 2px solid #ff0000;
border-radius: 10px; padding: 20px; color: #ff0000;
font-family: 'Share Tech Mono', monospace;
box-shadow: 0 0 20px rgba(255, 0, 0, 0.5);">
<strong>⚠ ERROR:</strong><br>{str(e)}
</div>
"""))
create_button.on_click(on_create_button_clicked)
# ===================================================
# DISPLAY INTERFACE
# ===================================================
display(header_html)
display(private_key_input)
display(utxo_txid_input)
display(utxo_index_input)
display(utxo_value_input)
display(recipient_input)
display(send_amount_input)
display(fee_input)
display(message_input)
display(testnet_checkbox)
display(create_button)
display(output_area)