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The best way to store your hardware wallet backup.

Secure your seed phrase backup by physically encrypting it with a simple shuffle.

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Chaindeck is a unique deck of 100 cards offering the best way to store your seed phrase. 

Two hands holding Chaindeck cards for seed phrase backup storage. The cards are inside a paper sleeve and being pulled out.
Shuffle the cards to encrypt what's written on their sides.

Pick a 3-digit PIN, and use it to arrange your cards in a particular order.

 

OUR VISION

We’re Here to Level Up Your Seed Phrase Storage

Chaindeck with false edge markings added to confuse unauthorized reconstruction.
Chaindeck fully shuffled, making the seed phrase completely illegible.
Chaindeck in a fully randomized state concealing the original seed phrase.
Chaindeck shuffled again, hiding both real and false markings.
A new Chaindeck that does not have any seed phrase backup stored in it yet.
Chaindeck showing a legible seed phrase written along the aligned card edges.
Chaindeck more shuffled with the seed phrase now mostly unreadable.
Chaindeck partially shuffled so the seed phrase starts becoming scrambled.

Watch your seed phrase turn into gibberish as you shuffle the cards.

Following the initial shuffling, you can introduce false markings on empty spaces to improve the security of your Chaindeck.

HOW DOES IT WORK?

A smarter way to protect your seed phrase

01  CHAIN YOUR DECK

Pick a 3-digit PIN and follow the instructions to arrange the cards in a specific order. It takes 15 to 30 minutes.

Chaindeck cards being organized into a chosen arrangement.
Secret seed phrase backup being written on the Chaindeck.

02  WRITE YOUR SECRET PHRASE

Write your secret phrase on the sides of the deck. The ink soaks into the cards, so it can't be erased.

03  SHUFFLE THE CARDS

Your secret phrase will be encrypted as you shuffle the cards. Use your PIN to put the cards back in position and read your secret.

Chaindeck cards being shuffled to encrypt the secret phrase.
Four-step sequence of a Chaindeck: seed phrase visible, then progressively scrambled and hidden.

WHY CHAINDECK

A Different Approach, Using a Unique Method of Encryption

Chaindeck adds a time delay and an effort requirement against maliciously accessing your seed phrase. Holding the deck doesn't mean holding the key.

DELAYED ACCESS

SELF-CUSTODY MATTERS

Your Keys, Your Responsibility.

GET THE GROUNDBREAKING

DECK CIPHER

SHIPPED IN 1-3 DAYS

SECURE PAYMENT

HASSLE-FREE RETURNS

$100 (shipping and taxes included)

Chaindeck box designed for secure offline seed phrase backup.

Chaindeck works with all wallets that use a seed phrase.

A CLEVER AND VERSATILE SOLUTION

FEATURED ON

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