This cold storage hardware wallet is hidden behind a Tetris game. Bowser is the origin of the undercover wallet, released by Ben Arc and is found at his github repository under open source MIT licensing.
“Its best to think of Bowser wallet like a cold storage paper wallet that can sign transactions. Some security is achieved by the passphrase being stored/verified as a hash, however the mnemonic is stored in an accessible location on the device and the passphrase could be brute forced, so the wallet details are only pseudo-secure on the device. The risk/use profile of Bowser is storing in a secure location as you would with a paper wallet, the advantage that Bowser provides is it gives the option to sign transactions via PSBTs on an offline, dedicated device.”
Bowser wallet includes:
- SegWit addresses with master key
- Signing transactions offline via PSBTs
- M5Stack BASIC
- Color 2″ IPS LCD
- USB-C Cable
- 16GB uSDCard
- High-Capacity 3.7V 750mAh Rechargeable Battery
- Free Do-it-Yourself Bowser Wallet PDF (0 downloads)
- Lifetime Premium support
You can connect any watch-only capable wallet by scanning Bowser’s ZPUB to it, such as Electrum or Blue wallet, or other wallets, to monitor your balance.
In the SD card, you can type the following commands in /bowser.txt to program the wallet:
- To wipe device completely, setup new wallet:
- To restore from a seed backup:
RESTORE husband behind shallow promote....
- To sign a transaction on Electrum or other wallet:
Download Morse Code Cheat Sheet for Entering Your PIN
To power on/off and access wallet:
- Power on: Click the red power button on the left
- Power off: Quickly double-click the red power button on the left
- Access wallet: Quickly press the right button after Bowser powers on
See a short video of the wallet.
Also, see a longer tutorial which shows all available features.
Github Repository Info: