The cryptography is free and runs in your browser. The kit is what makes the scheme real — archival materials, tamper-evident seals, holder instructions, and a written manual your heirs can use without us. Three tiers, one promise: we ship materials, not custody.
Every Shards kit — Personal, Guardian, or Legacy — contains the core materials needed to set up a real threshold scheme. Higher tiers add tamper-evident packaging, ceremonial components, and personalised written work.
Cotton-rag stock chosen for fifty-year archival stability. Each card carries a single shard, printed using the browser-side tool. Designed to outlast filing cabinets, fires, and floods if stored correctly.
A printed booklet that walks your heirs through reconstruction without internet, without our website, and without prior crypto knowledge. Includes step-by-step instructions for reconstruction by hand if every digital tool fails.
A separate, written letter for every person who will hold a shard. Explains what the shard is, what to do with it, and how reconstruction works — without revealing what the underlying secret actually is.
Your own record of who holds what, kept by you. Not for distribution. Designed to live in a safe alongside the will or trust documents, so the people responsible for your estate know your scheme exists and where to begin.
All three tiers protect with the same cryptography. They differ in the materials surrounding the cryptography, the ceremony, and the human help we provide. Pick the one that matches what you are actually setting up.
Guardian is the kit most buyers choose because it is the smallest tier where the scheme feels like a real ceremony rather than a printout. The tamper-evident envelopes mean each holder can verify that no one has examined their shard before reconstruction. The wax seal is not theatre — it is a low-cost, high-trust signal that the contents have not been disturbed.
Seven days of priority email support means a real person answers your questions during setup, in the window when you actually have them. After that week, the kit is designed to work without us.
Guardian is calibrated for a 3-of-5 scheme — the recommended default for nearly every inheritance and family-office use case. If you are protecting a meaningful crypto wallet or password vault and want the recipients to take the materials seriously, this is the tier.
A Legacy commission is not a kit you assemble — it is a scheme we help you design. The first week is custom writing: a threshold recommendation tailored to your situation, a recovery ceremony plan for your specific holders, and personalised welcome letters that each holder receives by name.
The sixty-minute live setup call is where the cryptographic split actually happens. You perform it on your own device while we walk through the procedure with you in real time. We see nothing. The call ends; the scheme exists.
Legacy is the tier for someone passing a meaningful self-custodial wallet to heirs, protecting a foundation's treasury keys, or designing a recovery scheme that will outlive them. The price reflects the time we spend with you, not the materials in the box.
A scheme that depends on physical materials only works if those materials survive. Every component is chosen to be archival, tamper-evident, and obviously serious — so holders treat the cards with the gravity they deserve.
100% cotton, acid-free, lignin-free. Designed for fifty-year archival use. Each card large enough to print a full SLIP-39 share in mnemonic form, with room for QR and reconstruction guidance on the back.
Signature paper with a sealed perimeter and a holographic strip. Any attempt to open the envelope leaves visible evidence. Holders can verify their shard has not been examined.
A traditional sealing wax in deep oxblood with a brass sigil stamp. Not for show — wax is the cheapest, most reliable physical tamper-evidence ever invented, and it survives temperatures paper does not.
The cryptography runs in your browser. The kit arrives by mail. The scheme outlives us — or never depended on us in the first place.