🔒 Security first
AES-GCM encrypted seed in secure storage, root/jailbreak detection, screen protection and APK integrity checks.
Bitcoin-blake2b mainnet · BIP-110 · self-custody
Your funds.
Your keys. Only on your device.
Btc Blake2b Wallet is a local, self-custodial wallet for bitcoin-blake2b mainnet. Your keys stay on your device and are never sent to the author's servers. No token, no ICO, no backend: only open-source software you control.
MIT licensed · Signed APK · SHA-256 published
⚠️ Experimental network: understand the risks before using it.
Features and principles
🏠 Self-custody & privacy
100% local wallet. No data goes to the author's servers: only the public APIs needed for balance and history.
👁️ Watch-only
Import an xpub to monitor an external wallet without ever exposing private keys.
🧩 Multi-account
Supports BIP84, BIP49 and BIP44. SIGHASH_UNIFIED helps reduce replay risk, but the network has no consensus-level replay protection.
⚡ Lightning
Control your own Lightning node remotely with the app. No node? An experimental atomic swap with a provider pays the invoice while your funds stay in your on-chain wallet (testing phase).
🔎 Addresses and UTXOs
Every receive and change address with its on-chain state, derivation path and balance, plus a read-only UTXO view.
🎯 Professional UX
Guided onboarding, confirmed backups, coin control, RBF fee bump, batch send to up to 20 recipients in one payment, private notes on transactions, CSV/JSON history export, QR send/receive and 7 languages.
🕊️ Free and open source
MIT licensed. No paid features, accounts or paywalls. Donations are voluntary gifts.
Screenshots
Honesty about the network
- Separate network: bitcoin-blake2b is an experimental network separate from Bitcoin. Learn about the risks before using it.
- No network replay protection: the app uses SIGHASH_UNIFIED to reduce risk, but always verify addresses.
- No token, nothing to buy: no ICO, no presale, no paid features.
- Realistic fees with an automatic API fallback for balance and history.
- This project is not affiliated with Bitcoin, bitcoin.org or the bitcoin-blake2b project.
A clear way to get started
Understand the network
Bitcoin-blake2b is a separate experimental network. Understand the risks before using funds.
Protect your backup
Write your seed on paper, verify the backup and never store it in screenshots or cloud storage.
Check every transaction
Verify the network, address, amount and fee before signing or broadcasting a transaction.
Frequently asked questions
Is this a standard Bitcoin wallet?
No. It supports bitcoin-blake2b, a network separate from Bitcoin. Coins and transactions are not interchangeable.
Can the author recover my seed?
No. The app is self-custodial. If you lose your seed and device, recovering your funds may be impossible.
What data is transmitted?
For balance, fees and history the app queries one public API (mempool.guide). If that service is unavailable, the app may query two community Esplora-compatible mirrors (mempool.kilombino.com, mempool.maveth.ca). This can be turned off in Settings. These requests may expose your IP address and the queried public address to the provider.
Is there replay protection?
No consensus-level protection. The app signs with SIGHASH_UNIFIED to reduce the risk, but always verify network and addresses.