Cypher Box

Cypher Box LLC

About this app

Cypher Box, is an open-source Bitcoin wallet appropriate for beginners who want to gradually reach advanced self-custody. It features a gamified framework that strikes a balance between; security, fees, and convenience. Your progression as a user takes four difficulty levels, reflecting your understanding of Bitcoin and the amount of wealth you are trying secure. The app can be ultra newbie-friendly since it comes with highly reliable Lightning Network custodial service providers, but as your wealth grows, you can transfer your Bitcoin into a more secure environment by creating hot or cold storage vaults.

Note: We do NOT custody your funds.

Level 1: Checking Account with a Lightning custodian
- Send and receive Bitcoin instantly with near-zero fees using the Lightning Network
- Accumulate a measured amount of bitcoin before withdrawing to self-custody
- Assign a threshold for withdrawals to balance Bitcoin Network fees and counter-party risk
- Assign a Reserve Amount of Bitcoin that stays in your custodian account for quick spending
- Withdraw to your self-custodial Vault

Level 2: Hot Savings Vault (self-custodial)
- Generate a public-private key pair with a 12-word backup
- Deposit and spend sizeable amounts of Bitcoin through the main Bitcoin Network
- Accumulate Bitcoin in a self-sovereign manner
- Consolidate and transfer accumulated coins to your Cold Vault (soon)
- Top-up Checking Account with sizeable amounts of Bitcoin
- Recover Hot Vault

Level 3: Cold Savings Vault
- Connect hardware device (cold wallet) for enhanced security
- Deposit or send large amounts of Bitcoin
- Transfer coins from/to from Hot Vault
- Top-up and withdraw from/to Checking Account directly

Other features:
- Interactive bar display to visualize balance in relation to your thresholds
- Graphical representation of 'Capsules' or coins (UTXOs) that reflect their size (soon)
- Total balance across all checking accounts and vaults

Technical specs:
- LNURL
- SegWit-first
- Bip39
- Watch-only vault
- PSBT
- Private keys never leave your device

What’s new

- New 'Batch' button: quickly combines UTXO capsules into one, lowering future network fees.
- Plausible Deniability: create two passwords leading to two different wallet interfaces, one shows your real balance, the other is fake. Useful in situations where you might be pressured to reveal your wallet.
- Hot Vault PSBT signing: enables a ‘Warm Vault’ setup using an offline phone instead of a hardware device
- Bug fixes & UI improvements