The screen is the record
A page on a computer can show anything. The device reprints the address and the action in its own pixels before a signature is made.
Hardware signing device · Pasadena
A small metal device for keys that stay put.
MaxClawOS Wallet is a hardware wallet from KLA Waterman, LLC. The key is created inside a secure element. The screen on the metal shows the session. Two buttons have to agree before a signature leaves.
This is a product monograph. KLA Waterman, LLC does not buy, sell, exchange, or trade crypto assets, and does not keep client keys.
On-device screenThe computer does not draw these pixels.
- StudioPasadena, California
- Opened2018
- Business IDB20260282670
- FirmwareMaxClaw OS
Three decisions
The device is the whole product.
MaxClaw OS is the firmware on the metal. There is no account, no marketplace, and no desk that holds a key for you.
The key does not travel
The seed is created in the secure element and stays there. The cable carries a request in and a signature out.
Recovery is a card
The backup is a written card of 24 words. The studio never receives a copy, and we will never ask you to read it aloud.
The object
Built to be read at arm’s length.
The screen is small on purpose. A signing device should be checked the way you check a payment terminal: held, looked at, then confirmed with a finger on metal. The copper edge is there so the device has a front even when the screen is asleep.
A session
Four steps, then the key is still there.
- 01
Connect
A USB-C cable wakes the device. MaxClaw OS starts on the board, not in the browser.
- 02
Review
The computer prepares a request. The device draws its own view of the address and the action.
- 03
Confirm
Both buttons, pressed together, approve the session. The left button alone dismisses it.
- 04
Return
Only the signature leaves. The key remains in the element.
Where the idea comes from
A screen you can trust, and a chip that keeps the secret.
Dedicated signing devices took shape in the early 2010s. One lineage put a readable screen and physical buttons in the hand. Another put the seed inside a secure element, the same class of chip used in payment cards. MaxClaw OS is our synthesis of those two lessons, from a Pasadena studio that used to build payment-terminal hardware.
Journal
Notes on the category, written here.
How hardware wallets began
The screen-and-buttons idea, the secure-element idea, and why this studio followed both.
Why the screen is the record
A computer can display a substituted address. The device has to show its own.
The recovery card
Twenty-four words, a pen, and a studio that cannot restore what it never held.