Understanding BTC Wallet Sub-addresses
Bitcoin wallets operate on an HD (Hierarchical Deterministic) framework, enabling the generation and management of multiple addresses. Each public address in your wallet derives from its xPub (Extended Public Key).
Reusing the same BTC address for transactions exposes your payment history to public tracking. Sub-addresses enhance privacy by allowing unique addresses for each transaction.
Step-by-Step Guide to Using BTC Sub-addresses
Navigate to Wallet Management
- Open imToken and go to the Assets page.
- Tap the "..." icon (top-right) to access wallet settings.
Access Wallet Addresses
- Select “Wallet Address” from the menu.
Add or Select Sub-addresses
- Tap “Add” to create a new sub-address.
- Choose an existing sub-address for transactions.
Copy Sub-address for Use
- Return to the Assets page and tap your wallet address.
- Select “Sub-address”, then click an address to copy it.
👉 Learn more about secure BTC transactions
Key Notes
- Balance Calculation: Your main BTC address balance includes assets from the main address, sub-addresses, and change addresses.
- Backup: Sub-address private keys are backed up via your wallet’s recovery phrase—no need for separate backups.
- USDT Warning: Avoid using sub-addresses for USDT deposits (Omni Layer protocol requires main addresses).
FAQs
Q: Can I generate unlimited sub-addresses?
A: Yes! HD wallets support virtually unlimited address generation.
Q: Are sub-address transactions slower?
A: No—they function identically to main addresses in speed and fees.
Q: How do sub-addresses improve privacy?
A: Unique addresses prevent third parties from linking all transactions to a single wallet.
👉 Explore advanced BTC wallet features
For optimal security, always verify addresses before transacting. Need help? Refer to imToken’s official support channels.
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