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# Bal Electrum Plugin
⚡ **Bitcoin Electrum plugin for managing heir inheritance and locktime-based transactions**
This plugin extends Electrum wallet to support:
- **Heir inheritance management** - Define beneficiaries and inheritance shares
- **Locktime transactions** - Create time-locked transactions for future spending
- **Multi-signature setups** - Configure complex multisig scenarios with heirs
- **User-friendly wizards** - Easy setup interface
⚡ **Bitcoin Electrum plugin for managing heir inheritance with locktime-based will execution**
---
@@ -28,56 +22,69 @@ This plugin extends Electrum wallet to support:
### Method 2: Install from Source
1. **Download the source code**
```bash
git clone https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin.git
cd bal-electrum-plugin
```
2. **Create a zip file**
```bash
zip -r bal-electrum-plugin.zip bal_electrum_plugin/
```
3. **Install in Electrum** (follow Method 1, step 2)
### Method 3: Install from Gitea Directly
1. **Download the plugin archive**
```bash
wget https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/archive/main.zip -O bal-electrum-plugin.zip
```
2. **Install in Electrum** (follow Method 1, step 2)
Then install using Method 1, step 2.
---
## 🚀 Quick Start
## 🚀 How It Works
### 1. Enable the Plugin
- Open Electrum
- Go to **Tools → Plugins**
- Find **Bal Electrum Plugin** in the list
- Click the checkbox to enable it
- Click **Apply** and restart Electrum if prompted
### Core Functionality
### 2. Configure Your Heirs
- Go to **Tools → Bal Electrum Plugin**
- Click **Setup Heirs**
- Add beneficiaries with their Bitcoin addresses and inheritance percentages
- Set locktime conditions for each heir
The plugin allows users to create a **Bitcoin will** that automatically executes under specific conditions:
### 3. Create a Locktime Transaction
- Go to **Send** tab
- Enter recipients and amount
- Enable **Locktime** option
- Set when the transaction can be spent (block height, timestamp, or relative time)
- Review and broadcast the transaction
1. **Define Heirs** - Create a list of beneficiaries
2. **Set Distribution** - Specify Bitcoin addresses and inheritance amounts (percentage or fixed amount)
3. **Configure Locktime** - Set when transactions can be spent
4. **Set CheckAlive** - Configure health verification mechanism
5. **Select Executor** - Choose which will-executor will handle the transaction
### 4. Verify Heir Distribution
- Go to **Tools → Bal Electrum Plugin → View Heirs**
- Check the distribution summary
- Verify all percentages sum to 100%
### Detailed Workflow
#### Step 1: Define Heirs
- Add multiple heirs with:
- Bitcoin address (destination)
- Inheritance amount (percentage of total or fixed BTC amount)
- Example:
- Heir 1: `bc1...` - 50% of total
- Heir 2: `bc1...` - 30% of total
- Heir 3: `bc1...` - 20% of total
#### Step 2: Set Locktime
- **Purpose**: Postpone transaction execution until a specific time
- **Format**:
- **Timestamp**: Unix timestamp (e.g., `1735689600` for Jan 1, 2025)
- **Interval**: Suffix with `d` for days or `y` for years (e.g., `180d`, `1y`)
- **Effect**: All transactions will be timelocked until this time
#### Step 3: Set CheckAlive
- **Purpose**: Verify if the testator is still alive
- **Two modes**:
**Interval Mode** (recommended):
- Format: Same as locktime (e.g., `180d`, `2y`)
- Logic: `locktime - interval > current_time`
- Example: Locktime=1y, CheckAlive=180d → Valid if 365-180 > current days
**Fixed Date Mode**:
- Format: Timestamp
- Logic: `fixed_date > current_time`
- Example: CheckAlive=2025-12-31 → Valid if date is in the future
- **Effect**: If CheckAlive expires, the old will is invalidated
#### Step 4: Select Will Executor
- Choose from available will-executors
- The executor will:
- Receive the timelocked transaction
- Monitor the blockchain
- Broadcast the transaction at locktime expiration
- Receive a fee for services
---
@@ -85,48 +92,22 @@ This plugin extends Electrum wallet to support:
```
bal-electrum-plugin/
├── bal_electrum_plugin/ # Main plugin code (what you zip)
├── bal_electrum_plugin/
│ ├── __init__.py # Plugin entry point
│ ├── qt.py # Main Qt interface
│ ├── heirs.py # Heir management logic
│ ├── locktime.py # Locktime transaction handling
│ ├── dialogs/ # UI dialogs
│ │ ├── heirs_dialog.py # Heir configuration dialog
│ │ ├── locktime_dialog.py # Locktime setup dialog
│ │ └── wizard.py # Setup wizard dialog
│ ├── locktime.py # Locktime handling
│ ├── checkalive.py # CheckAlive verification
│ ├── executor.py # Will executor management
│ ├── dialogs/
│ │ ├── setup_wizard.py # Main setup interface
│ │ ├── heirs_dialog.py # Heir configuration
│ │ ├── locktime_dialog.py # Locktime setup
│ │ ├── checkalive_dialog.py # CheckAlive configuration
│ │ └── executor_dialog.py # Executor selection
│ └── utils.py # Utility functions
├── README.md # This file
└── LICENSE # MIT License
```
**Note**: Only the `bal_electrum_plugin/` directory needs to be zipped for installation.
---
## 🔧 Configuration
### Plugin Settings
After installation, configure the plugin in Electrum:
1. Go to **Tools → Bal Electrum Plugin → Settings**
2. Configure:
- **Debug mode**: Enable for troubleshooting
- **Default locktime**: Set default locktime for new transactions
- **Heir validation**: Enable/disable heir address validation
### Configuration File
The plugin stores settings in:
```
~/.electrum/plugins/bal_electrum_plugin/config.json
```
### Environment Variables (Advanced)
```bash
# Enable debug logging
BAL_DEBUG=1
# Custom config path
BAL_CONFIG_PATH=/path/to/config.json
├── README.md
└── LICENSE
```
---
@@ -134,78 +115,123 @@ BAL_CONFIG_PATH=/path/to/config.json
## 🎯 Key Features
### Heir Management
✅ **Add/Remove Heirs** - Manage multiple beneficiaries
✅ **Inheritance Percentages** - Set distribution shares (sum must be 100%)
✅ **Locktime Conditions** - Define when each heir can access their funds
✅ **Address Validation** - Verify Bitcoin addresses before saving
✅ **Distribution Summary** - View total inheritance breakdown
- **Multiple heirs**: Add unlimited beneficiaries
- **Flexible distribution**: Percentage-based or fixed amount
- **Address validation**: Verify Bitcoin addresses before saving
- **Distribution summary**: View total inheritance breakdown
### Locktime Transactions
✅ **Absolute Locktime** - Transaction can only be spent after a specific:
- Block height (e.g., `700000`)
- Timestamp (Unix timestamp, e.g., `1609459200`)
### Locktime Configuration
- **Timestamp format**: Unix timestamp (e.g., `1735689600`)
- **Interval format**: Days (`180d`) or years (`1y`)
- **Automatic conversion**: Intervals converted to timestamps internally
- **Validation**: Ensures locktime is in the future
✅ **Relative Locktime** - Transaction can only be spent after:
- **Days**: Use suffix `d` (e.g., `3d` = 3 days from now)
- **Years**: Use suffix `y` (e.g., `2y` = 2 years from now)
### CheckAlive Mechanism
- **Two verification modes**: Interval or fixed date
- **Automatic validation**: Checks if testator is still alive
- **Will invalidation**: Old wills marked invalid if CheckAlive expires
- **Flexible timing**: Configure based on your needs
✅ **Locktime Types**:
- **Block-based**: Locktime in blocks
- **Time-based**: Locktime in seconds since epoch
- **Relative**: Time intervals from current time
### Multi-Signature Support
✅ **Combine signatures** with existing wallet signatures
✅ **Configure required signatures** for spending
✅ **Support for complex multisig** setups with heirs
### Will Executor System
- **Multiple executors**: Choose from available executors
- **Fee structure**: Executors receive a fee for services
- **Automatic transmission**: Transaction sent to executor after creation
- **Blockchain monitoring**: Executor broadcasts at locktime
---
## 📖 Usage Examples
### Example 1: Simple Heir Setup
### Example 1: Simple Inheritance Will
1. **Add an heir**:
- Address: `bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq`
- Percentage: `50%`
- Locktime: `1y` (1 year from now)
**Scenario**: Leave 1 BTC to three heirs after 1 year, with 180-day CheckAlive
2. **Add second heir**:
- Address: `bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4`
- Percentage: `50%`
- Locktime: `2y` (2 years from now)
**Steps**:
3. **Create transaction**:
- Send 0.5 BTC to heir1 after 1 year
- Send 0.5 BTC to heir2 after 2 years
### Example 2: Locktime Transaction
```python
# Create a transaction that can only be spent after 6 months
from bal_electrum_plugin.locktime import Locktime
locktime = Locktime(
type="relative",
value="6m", # 6 months from now
unit="blocks" # or "seconds"
)
# This transaction will be locked for 6 months
tx = create_transaction(
recipients=[recipient_address],
amount=0.1,
locktime=locktime
)
1. **Add Heirs**:
```
Heir 1: bc1qar0srrr7xfkvy5l643lydnw9re59gtzzwf5mdq - 40% (0.4 BTC)
Heir 2: bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4 - 35% (0.35 BTC)
Heir 3: bc1ql4wk3ym38m8p3kns5w5q4tech38x58s3yy263q - 25% (0.25 BTC)
```
### Example 3: Complex Inheritance
2. **Set Locktime**: `1y` (1 year from now)
- **Heir 1**: 30%, locktime `1y`
- **Heir 2**: 40%, locktime `2y`
- **Heir 3**: 30%, locktime `3y`
3. **Set CheckAlive**: `180d` (180 days before locktime)
Total: 100% distributed over 3 years
4. **Select Executor**: "Alice Executor" (fee: 0.01 BTC)
5. **Create Transaction**:
- Input: All UTXOs in wallet
- Outputs:
- Heir 1: 0.4 BTC
- Heir 2: 0.35 BTC
- Heir 3: 0.25 BTC
- Executor fee: 0.01 BTC
- Network fee: 0.001 BTC
- Locktime: 1 year from now
6. **Send to Executor**: Transaction sent to Alice's address
7. **Executor Action**: Alice broadcasts transaction after 1 year
### Example 2: Fixed Date CheckAlive
**Scenario**: Leave funds with CheckAlive on specific date
**Configuration**:
- Locktime: `2026-06-01` (timestamp: `1748832000`)
- CheckAlive: `2025-12-31` (timestamp: `1767187200`)
- Heirs: 50% to heir1, 50% to heir2
- Executor: "Bob Executor" (fee: 0.005 BTC)
**Logic**:
- If today > 2025-12-31 → Old will is invalid
- Transaction executes on 2026-06-01
- Executor receives fee and broadcasts
### Example 3: Complex Distribution
**Scenario**: Leave different fixed amounts to heirs
**Heirs**:
- Heir 1: `bc1...` - 0.3 BTC (fixed amount)
- Heir 2: `bc1...` - 0.5 BTC (fixed amount)
- Heir 3: `bc1...` - 0.2 BTC (fixed amount)
**Total**: 1.0 BTC
**Locktime**: `365d` (1 year from now)
**CheckAlive**: `180d` (6 months before locktime)
---
## 🔧 Configuration
### Plugin Settings
After installation, configure in Electrum:
1. Go to **Tools → Bal Electrum Plugin → Settings**
2. Configure:
- **Default Locktime**: Set default locktime format
- **CheckAlive Mode**: Choose interval or fixed date
- **Executor Fee**: Set percentage or fixed fee for executors
- **Debug Mode**: Enable for troubleshooting
### Configuration File
```json
{
"locktime_format": "interval",
"default_locktime": "365d",
"checkalive_mode": "interval",
"checkalive_value": "180d",
"executor_fee": 0.01,
"debug": false
}
```
---
@@ -215,37 +241,17 @@ Total: 100% distributed over 3 years
- Electrum Bitcoin wallet (version 4.0.0 or later)
- Python 3.7+
- PyQt5
- pytest (for testing)
- pytest
### Setup Development Environment
### Setup
```bash
# Clone the repository
# Clone repository
git clone https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin.git
cd bal-electrum-plugin
# Create development zip
zip -r bal-electrum-plugin-dev.zip bal_electrum_plugin/
```
### Install for Development
1. Copy the zip file to your Electrum plugins directory:
```bash
cp bal-electrum-plugin-dev.zip ~/.electrum/plugins/
```
2. Install in Electrum (Tools → Plugins → Add)
3. Make changes to the source code in `bal_electrum_plugin/` directory
4. Re-zip and reinstall to test changes:
```bash
cd ~/.electrum/plugins/
unzip bal-electrum-plugin-dev.zip -d bal_electrum_plugin_temp
# Make your changes to bal_electrum_plugin_temp/
zip -r bal-electrum-plugin-dev.zip bal_electrum_plugin_temp/
rm -rf bal_electrum_plugin_temp
# Install in development mode
pip install -e .
```
### Running Tests
@@ -263,181 +269,67 @@ pytest tests/test_heirs.py -v
### Code Style
This project follows:
- **PEP 8** style guide
- 4 spaces for indentation
- 79 characters line length
- Descriptive variable and function names
- Type hints for public functions
- Follow PEP 8 guidelines
- Use descriptive variable names
- Add type hints for public functions
- Write comprehensive docstrings
---
## 🐛 Troubleshooting
### Plugin Not Showing in Electrum
### Common Issues
❌ **Problem**: The plugin doesn't appear in Electrum's plugin list
#### Plugin Not Showing in Electrum
- ✅ Verify Electrum version (4.0.0+)
- ✅ Check zip contains `bal_electrum_plugin/` directory
- ✅ Restart Electrum after installation
- ✅ Check Electrum logs (Help → Debug → Console)
✅ **Solutions**:
1. Verify you're using Electrum 4.0.0 or later
2. Check that the zip file contains the `bal_electrum_plugin/` directory
3. Ensure the directory structure is correct inside the zip
4. Restart Electrum after installation
5. Check Electrum logs for errors (Help → Debug → Console)
#### Locktime Format Errors
- ✅ Use valid formats: `180d`, `1y`, or Unix timestamp
- ✅ Ensure locktime is in the future
- ✅ Check for typos in interval format
### Locktime Not Working
#### CheckAlive Not Working
- ✅ Verify CheckAlive mode (interval or fixed date)
- ✅ Ensure CheckAlive is before Locktime
- ✅ Check date calculations are correct
❌ **Problem**: Locktime conditions aren't being enforced
✅ **Solutions**:
1. Verify locktime format: `3d` (days), `2y` (years), or timestamp
2. Check that the locktime is in the future
3. Ensure your Bitcoin node supports locktime transactions
4. Test with a small amount first
5. Verify the transaction has the locktime field set correctly
### Heir Configuration Errors
❌ **Problem**: Can't add or save heirs
✅ **Solutions**:
1. Verify Bitcoin addresses are valid (use testnet for testing)
2. Check that percentages sum to exactly 100%
3. Ensure locktime values are valid formats
4. Enable debug mode to see detailed error messages
5. Check plugin logs for specific error details
### Common Error Messages
| Error | Cause | Solution |
|-------|-------|----------|
| `Invalid checksum` | Bad Bitcoin address | Verify the address |
| `Percentage must sum to 100%` | Invalid heir distribution | Adjust percentages |
| `Locktime in the past` | Invalid locktime value | Use future date/time |
| `Plugin not found` | Incorrect zip structure | Check zip contents |
#### Heir Distribution Errors
- ✅ Verify percentages sum to 100% or amounts are valid
- ✅ Check Bitcoin addresses are valid
- ✅ Ensure no duplicate addresses
---
## 🤝 Contributing
We welcome contributions from the community! Here's how to help:
We welcome contributions! Please follow these guidelines:
### Ways to Contribute
1. **Report bugs** - Open an issue on [Gitea](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/issues)
2. **Suggest features** - Share your ideas for new functionality
3. **Write documentation** - Improve README, add examples, create tutorials
4. **Submit pull requests** - Fix bugs or add new features
5. **Test the plugin** - Try different scenarios and report issues
6. **Translate** - Help translate the plugin to other languages
### Contribution Guidelines
1. **Fork the repository** and create your feature branch
2. **Add tests** for new functionality
3. **Follow PEP 8** style guide
4. **Write clear commit messages** following [Conventional Commits](https://www.conventionalcommits.org/)
5. **Update documentation** for new features
6. **Open a Pull Request** to the `main` branch
7. **Respond to feedback** during code review
### Development Workflow
```bash
# Fork the repository on Gitea
# Clone your fork
git clone https://bitcoin-after.life/gitea/YOUR_USERNAME/bal-electrum-plugin.git
cd bal-electrum-plugin
# Add upstream remote
git remote add upstream https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin.git
# Create feature branch
git checkout -b feature/your-feature-name
# Make your changes
# ...
# Test your changes
pytest tests/
# Commit changes
git add .
git commit -m "feat: add new feature description"
# Push to your fork
git push origin feature/your-feature-name
# Open Pull Request on Gitea
```
1. Fork the repository and create feature branch
2. Add tests for new functionality
3. Follow PEP 8 style guide
4. Write clear commit messages
5. Update documentation
6. Open Pull Request to `main` branch
---
## 📜 License
This project is licensed under the **MIT License** - see the [LICENSE](LICENSE) file for details.
### License Summary
- Free to use and modify
- Commercial use allowed
- No warranty provided
- Attribution required
---
## 🙏 Acknowledgments
- **Electrum developers** - For creating the amazing Electrum wallet
- **Bitcoin community** - For continuous innovation and support
- **All contributors** - For improving this plugin
- **Early users** - For testing and feedback
---
## 📞 Support & Contact
### Getting Help
- **Documentation**: This README file
- **Issues**: [Gitea Issues](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/issues)
- **Discussions**: [Gitea Discussions](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/discussions)
- **Wiki**: Check the `docs/` directory for additional documentation
### Community
- **Matrix/Element**: #bal-electrum-plugin:matrix.org
- **Telegram**: @bal_electrum_plugin
- **Email**: support@bal-electrum-plugin.org
---
## 📊 Version Information
**Current Version**: 1.0.0
**Last Updated**: April 2026
**Status**: Stable Release
**Electrum Compatibility**: 4.0.0+
### Version History
| Version | Date | Changes |
|---------|------|---------|
| 1.0.0 | Apr 2026 | Initial release with heir and locktime features |
| 0.9.0 | Mar 2026 | Beta testing phase |
| 0.1.0 | Feb 2026 | Initial development |
MIT License - see [LICENSE](LICENSE) for details.
---
## 🔗 Links
- **Repository**: [https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin)
- **Releases**: [https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/releases](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/releases)
- **Issues**: [https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/issues](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/issues)
- **Discussions**: [https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/discussions](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/discussions)
- **Releases**: [Releases page](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/releases)
- **Issues**: [Issues tracker](https://bitcoin-after.life/gitea/bitcoinafterlife/bal-electrum-plugin/issues)
---
**⚠️ Important**: This plugin deals with real Bitcoin transactions. Always test with small amounts first and verify all settings before using with large amounts.
**⚠️ Important**: Always test with small amounts first. This plugin deals with Bitcoin transactions that may be irreversible.
**🔒 Security**: Never share your seed phrase or private keys. This plugin only creates transactions, it doesn't store your keys.