SeedSigner

SeedSigner is an verifiably air-gapped device for creating bitcoin wallets and signing air-gapped bitcoin transactions. Single signature wallets, passphrase wallets, and multi-signature wallets alike, SeedSigner functions either as a stand-alone signing device, or pairs with all hardware wallets. VIDEO HERE.

While you are able to purchase all of the parts in a non-descript way from electronic retailers, NovaSapien provides the components together in one kit – either DIY, or pre-assembled.

Developed by the free open source SeedSigner project, we recommend this this as a foundational tool for world-class self-custody best practices, as well as Bitcoin education for yourself and others.

See our online courses or contact us for additional information.

Note:

• WANT TO STAY PRIVATE? Contact us for offline private purchases via Signal
• You can purchase a DIY kit or a preassembled device
• Select from the range of case colors and optional extras listed below

Optional Extras

We build our NovaSapien Self-Custody Kit to pair perfectly with the SeedSigner – the optional extra kit includes all materials needed for standard single-signature wallets. You can purchase anything below separately on the store or add it here as an extra for a discount.

1. 3x Vulcan21 Stainless Steel SteelQR Template & Center Punch – $99
2. 3x Titanium SteelQR & Center Punch – $309
3. NovaSapien Self Custody Kit – $138
4. 3x lockable tri-color seed-storage sleeves $29
5. Self-Custody MEGA Supply Pack – $50

Parts list:

• Raspberry Pi zero v1.3 (without WIFI/Bluetooth)
• Waveshare LCD display 1.3 inch 240×240 pixel
• Raspberry Pi Zero Camera
• GPIO 20 pin header (pre-soldered)
• Sandisk Ultra 32GB microSD card
• 3D printed “RUGGED pill” case
• MICRO USB CABLE
• High-quality Edding black marker (for QR codes)
• 8x c12 Seedphrase Cards
• 8x c24 Seedphrase Cards
• Ballpoint pen with oil-based pigment (best practices)
• Instructions card & stickers

The SeedSigner is a powerful, low-cost alternative (or compliment) to traditional hardware wallets—ideal for Bitcoiners who value transparency, flexibility, and open-source security.

“Every Bitcoiner should have a SeedSigner – as much of an education tool as a signing device.”

-SeedSigner, The Man