Stamp Seed Kit
Hand-stamp your seed into titanium or steel with a full punch kit. Maximum durability, more effort.
Overview
The Stamp Seed Kit takes the do-it-yourself route to permanence. Instead of tiles or punched dots, you hammer individual letter and number stamps into a titanium or steel plate, physically deforming the metal to record each seed word. Titanium is the most durable material commonly used for seed storage — it beats stainless steel on melting point and corrosion resistance — so a properly stamped plate is about as close to indestructible as consumer backups get.
The strengths are permanence and legibility: your seed ends up spelled out in real, deep-struck characters you can read back at a glance, with no reference grid needed. The kit includes the punches, so you can stamp additional plates for redundancy or for a multisig setup at no extra tooling cost. The honest caveats are effort and skill: stamping straight, evenly spaced characters takes a steady hand and practice, a slipped strike is permanent, and the process is slower and noisier than dropping tiles into a capsule. At around $100 it's also pricier than a punch plate.
Buy it if you value titanium-grade permanence, want your words in plain readable letters, and are comfortable with a hands-on, slightly unforgiving process. If you're nervous about making an irreversible mistake or just want the fastest setup, a tile capsule or punch plate is the friendlier choice.
Key features
- Hand-stamp letters and numbers into titanium or steel
- Titanium option offers best-in-class heat and corrosion resistance
- Seed recorded as plain, readable characters — no lookup grid
- Includes the full punch set, reusable across many plates
- Ideal for stamping redundant copies or multisig key backups
- Deep-struck characters resist wear and fire
- Fully offline, DIY workflow with no electronics
Specs
- material Titanium/steel
- method Hand stamp
Who it’s for
DIY-inclined holders who want titanium-grade permanence.
Stamp Seed Kit: frequently asked questions
Titanium or steel — which should I pick?
Titanium is the more durable and heat-resistant choice and is preferred for long-term storage; steel is cheaper and still highly fire- and water-resistant.
What if I mis-stamp a letter?
Stamping is permanent. It's wise to practice on a scrap plate first and go slowly; a mistake usually means starting that plate over.
Can I make more than one backup?
Yes. Because the kit includes the punches, you can stamp as many plates as you like — useful for a second location or a multisig setup.
Is stamping hard?
It takes a steady hand and a bit of practice for even spacing, but no special skill. Set the plate on a hard surface and strike each punch firmly and squarely.
More in Steel Backups
Cryptosteel Capsule Solo
The original stainless tile capsule, fireproof to ~1400°C. An independent brand — not a Ledger product.
Blockplate (12/24)
One-punch marking on a single thick steel plate — the cheapest credible backup.
Coinkite SEEDPLATE 24
Center-punch stainless steel plate for a 24-word seed, from the Coldcard makers.