The final backup for your
digital wealth.
Paper burns. Hard drives fail. Memory fades.
A titanium backup plate for your seed phrase that you encode yourself
[ THE VULNERABILITY ]
Digital assets are only forever
if your access is forever.
A piece of paper in a drawer or a text file on a hard drive is a single point of failure waiting to happen.
- No software. No vulnerabilities.
- No compromises. Only premium engineering.
- Titanium safe. Financial will. Absolute cold storage.
[ PENGER v1.0 KIT ]
Engineered for Decades.
Built for Sovereignty.
Everything you need to create a permanent backup — in one box.
Penger V1.0
Aerospace-grade titanium plate
Security Sleeve
Premium leather sleeve
Precision Center Punch
Professional stamping tool
Training Pencil
Practice before you stamp
Guides
Step-by-step encoding manual
[ THE PROTOCOL ]
Precision in Every Punch.
A BIP39 seed phrase is fundamentally a number system. Penger v1.0 doesn’t just record words; it archives them as raw, mathematical data.
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01
Locate
Find each word of your 12-word or 24-word recovery phrase in the provided printed dictionary.
-
02
Punch
Use the included puncher to mark the plate corresponding to your words. Every row is one word. You do this entirely offline.
-
03
Calculate & Recover
To read the backup in the future, simply calculate the total for each row. The sum gives you the exact index number in the BIP39 word list.
[ HOW ENCODING WORKS ]
From Words to Titanium.
A Complete Guide.
-
012,048 words — every BIP39 seed phrase draws from a standardized word list.
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02Index (1–2048) — each word maps to a unique number, encoded as 12-bit binary.
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03Punch the plate — that 12-bit code is what gets permanently stamped into titanium.
The BIP39 Word List
Your wallet generates a seed phrase from a standardized dictionary of 2,048 English words. Each word has a fixed position (index) in the list.
Find the Index
Look up each word in the printed BIP39 dictionary included in the kit, which shows the index number next to each word.
Convert to Binary
Convert the index to an 11-bit binary number: filled cell = 1, empty cell = 0.
Punch the Plate
Each row on the titanium plate represents a word; use the puncher to mark positions where the bit is 1, leaving the others blank.
Practice with Simulators
Try our free simulators before working with the plate.
[ THE COST OF INACTION ]
Seed phrases are being stolen.
The numbers don't lie.
Since early 2023 retail crypto users have lost an estimated $1 billion to compromised seed phrases, leaked private keys, and phishing attacks targeting wallet access.
Aggregated from on-chain analytics & industry reports, 2023 – Mar 2026
[ THE GUARDIAN MANIFESTO ]
Built by engineers who understand self-custody.
We believe the future of finance is personal ownership. But personal ownership is impossible without reliable, autonomous, and physically independent seed storage.
[ SECURE YOUR FUTURE ]
You have done everything to secure your capital.
Except the final step.
Stop risking your digital wealth on paper. Control your seed. Control your future.
Worldwide Shipping | Lifetime Material Warranty
[ ZERO THIRD PARTIES ]
Trust no one. Secure it yourself.
You punch it yourself
Your seed phrase never leaves your hands. Encode and stamp it fully offline — on your terms.
No apps, no firmware
Zero digital components. No batteries, no Bluetooth, no WiFi. Nothing to hack, nothing to update, nothing to fail.
Verify independently
Every word maps to a public BIP39 index. Verify your backup with any compatible wallet — no PENGER software needed.