Bolt Card – NFC Lightning Bitcoin Card
The Bolt Card is a reusable NFC card that lets you make Lightning Bitcoin payments with a simple tap. No app switching. No QR scanning. Just tap an...
Air-gapped • Open-source • Bitcoin self-custody
Take control of your Bitcoin with a fully air-gapped and open-source signing device.
This SeedSigner setup is designed for Bitcoiners who value privacy, sovereignty and secure self-custody.
Perfect for:
Carefully assembled and shipped from Belgium.
SeedSigner is an open-source Bitcoin signing device that allows you to securely manage your Bitcoin keys completely offline.
Unlike traditional hardware wallets, SeedSigner is designed around:
No accounts.
No cloud.
No unnecessary tracking.
(Optional accessories can be added separately.)