SeedSigner is a complete offline & air-gapped DIY Bitcoin Signing Device.
- Temporarily stores seeds in memory while the device is powered; all memory is wiped when power is removed
- SD card removable after boot to ensure no secret data can be written to it
- Sign transactions & transfer XPUB data using animated QR codes
- This device has Raspberry Pi Zero W board with Wifi & Bluetooth module physically disabled to keep it air-gapped.
The Ultimate Bitcoin Storage Solution.
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