COLDBRICK™ Store

DISCOVER COLDBRICK™

COLDBRICK™ is the preferred choice for those seeking a highly self-custody secure solution to protect their digital assets.

Risks if you don't have it:

TRADITIONAL SINGLE PLATE ISSUE
Despite variations in formats and materials, all plates available in the market share a common problem: they tie words to their positions. The associated risk is that, if that plate is lost or stolen, the seed phrase is exposed and you could lose all of your funds.

Then, why COLDBRICK™?

What sets Coldbrick apart in the market is the deliberate dissociation between words and positions: while standard wallets or generic metal plates tie terms directly to sequences, here a logical split operates, making seed reconstruction impossible without both plates, even if an attacker knows all words involved.
This ramps computational complexity exponentially for brute-force attacks, adding an obfuscation layer beyond mere physical redundancy and ensures encoding and decoding stays instantaneous only for the legitimate user. 

MAXIMUM RESISTANCE
COLDBRICK™ is crafted from a solid piece of 1.5mm thick stainless steel, ready to withstand fires up to approximately 1300°C (an average household fire reaches 650°C), corrosion and even torsional damage in case of an earthquake.

COMPATIBILITY
COLDBRICK™ is compatible with all types of wallets, 12- or 24-word BIP-39 Mnemonic Phrase. COLDBRICK™ can therefore be used with all the wallets on the market, such as Ledger, Trezor, MetaMask and many more.

ESSENTIAL CONCEPT
The dimensions and weight have been carefully designed to make it easy and safe to transport if necessary, as it can be easily concealed.

PERMANENT ENGRAVING
Whether you choose to use the included pen, special punches or a laser engraving machine, your seed phrase and the order of its words will be engraved forever.