Self-Custody Has a Single Point of Failure.

  • The "Metal Plate" Risk

    Stamping your seed phrase on a single piece of steel means anyone who finds it, a burglar, a maid, a confiscating authority, instantly owns your net worth.

  • The E-Commerce Target

    When a digital wallet provider's database was hacked in 2020, the physical home addresses of 270,000 crypto holders were leaked to the dark web, resulting in targeted home invasions.

  • The Hardware Risk

    Electronic hardware wallets degrade, suffer from battery bloat, or can be intercepted and pre-loaded with malware during international shipping.
Eliminate the Risk
Four open metallic cases in black, red, blue, and yellow displaying various metallic objects on a dark surface.

Physical Resilience for the Digital Age.

We are redefining offline self-custody. By leveraging Shamir’s Secret Sharing (SSS), we transform your master seed phrase into tangible, distributed shares.

Our proprietary "Blind Printing" protocol guarantees that we manufacture your physical backups without ever having access to your plaintext data. Available in cost-effective polymers or aerospace-grade titanium, the Cryptosign Tactical Deck provides a fire-resistant, water-resistant, and tamper-evident fail-safe for your total net worth.

View the Hardware

The Middle-Man Security Guarantee.

A hardware backup is only as secure as the database of the company that shipped it to you. We don't want to know who you are, and we don't want to know where you live. By combining our zero-knowledge offline software with Amazon FBA blind-fulfillment logistics, we offer an institutional-grade anonymity shield. Have your legal proxy order the kit to their commercial address, and it will arrive in an unbranded box. Cryptosign never touches the shipping label.

Select Your Deployment Protocol

  • Self-Custody & Encryption

    For advanced users and tech-savvy whales. Generate your Shamir shares locally via our 100% air-gapped tool. Submit only encrypted metadata for blind-printed titanium or polymer plates. Your plaintext never leaves your machine.

    Launch the Air-Gapped Tool 

  • Legacy Planning & Inheritance

    For guided recovery by heirs, lawyers, or notaries. Purchase the official Keyless Kit. Distribute physical shares to your trusted network for future air-gapped local recovery. Zero technical expertise required to initiate.

    Procure the Keyless Kit 

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    AUDIO OVERVIEW

    The Succession Protocol