Maximum Security for your Bitcoins
COLDKIT is the most secure set of accessories that guarantee 100% effective self-custody.
No Trust. Do It Yourself
*Option with Krux software installed.
selfcustody.github.io/krux/
Practical cryptocurrency wallet for daily use that connects to exchanges, apps, and P2P via USB, Bluetooth, or QR. Compatible with the Liquid network, allowing direct receipt without swapping.
Blockstream Jade is the practical ideal.
Security that
renews with every access
Amnesic security system
Krux, included in the Coldkit, offers innovative security architecture that eliminates the need for a traditional secure element. It features a completely amnesic system that doesn't retain sensitive data in hardware.
Open source
All Krux code can be viewed, edited, verified, and most importantly, reproduced. You can review, compile, and prove it yourself!
Air Gapped
Complete network isolation with absolute physical separation from any external connectivity. The hardware is designed without wireless communication components, including Bluetooth modules, NFC transmitters, or Wi-Fi interfaces.
Security and agility
in the palm of your hands
Security System - Secure Element
Jade's system has closed components like the secure element, power and sensors, but the critical part that handles keys is open source and auditable.
Open Source Code
The firmware that controls the device is completely open source, including the code that interacts with the chip. This allows auditing of security logic and ensures transparency in what really matters.
Air-Gapped
Jade can work offline with QR code communication, but its standard use on the Liquid network is online with connectivity in the Blockstream app.
KRUX WALLET
Camera with AI
Bright screen with touchscreen
Free support
Tutorial (video & text)
Amnesic system latest generation
Air-gapped
3% fee Alfred up to 6k/day
Battery with 2h duration
Partially Signed Bitcoin Transactions
Extreme compatibility.
Interoperation between Bitcoin hardware wallets is now possible, thanks to BIP174, which introduced a binary file format that all hardware wallets can use. Krux has been based on BIP174 from day one and uses it exclusively.
JADE WALLET
