- Material: AISI 304 Stainless Steel
- Gauge: GA. 14
- Dimensions: 93x80x2 mm
- Weight: 110g (0.24lbs)
- Finish: Matte 2B
- Brand/model: Truper® 12218
- Material: Cr-V Steel
- Hardness: 53HRc
- Point angle: 90º
- Dimensions: 108x6 mm (4¼x¼")
- You will need:
- Pen and paper
- A hammer/mallet (16oz/0.5Kg min.)
- A flat and sturdy surface
- Eye and ear protection
1. Convert your seed into numbers
By comparing each word with the BIP39 standard, you can convert them all into a unique number.
2. Find a flat/sturdy surface
You’ll need a heavy hammer/mallet for this job and the flattest surface you can find near you.
3. Prefill the board
Grab a marker and prefill all the cells where you have to punch.
4. Punch the numbers
Take the center punch tool and give one single good hit into every mark you made.
- 1, 2, 3 or 4 boards
- Center Punch Tool (If selected)
- Product Tag and Quick Guide
- BIP39 conversion card(s)
- Paper BIP39 English wordlist
We ship our products worldwide via Registered Mail (standard air mail). Orders may take up to 4 business days to get dispatched after you buy. We also provide a tracking number.
Our AISI 304 stainless steel plate can withstand extreme temperatures of around 1450°C (2642°F).
This grade of steel prevents any type of rust or corrosion in the metal, it is highly durable.
By using a 14GA. sheet (~2mm), you can rest assured the plate is not breaking any time soon.
By being completely offline, your backup is 100% unreachable via the internet or any digital medium.
Got any questions?
The main goal is safety and longevity. By stamping/punching your seedphrase into a piece of grade 304 stainless steel, you are minimizing the risk of an accident that may occur with a piece of paper, such as a natural disaster that may turn your key illegible. It also lowers the chance of hacking: the nature of the backup (a physical object) implies it is not reachable via the Internet or any other digital medium. You immortalize your crypto wallet with a deep cold state solution.
Why? This method of backup works extremely well for two simple reasons: It makes use of a standardized method (BIP39) and utilizes a high quality material that can last for hundreds of years (stainless steel).
How? By stamping/punching your seedphrase (which is essentially a very long password that represents your private key) into a super long-lasting piece of steel, you are actively creating a timeless copy of your coins and securing them forever.
No. You never have to share your key with anyone at any point of the process. We provide the backup solution and the tools needed for each customer to complete it in their own privacy. Our products are 100% trustless and non-custodial. (Privacy)
This grade of steel is highly durable and prevents any kind of rust/corrosion. It will also withstand high temperatures (1450°C/2642°F) and shock.
The only way you can leave a mark into the steel is by using specialized tools like a hammer and hardened steel stamps.
We have put our products to the test:
Nothing happens. The status of our business does not affect the functionality of the products we sell in any way. The BIP39 standard is open to the public and we just provide a backup solution of it. Once you setup your backup you are the only and true owner of it.
These products go in hand with our steel backups and we recommend them (Referral links)
Ledger Nano (X and S Plus) wallets are possibly the most versatile ones, they support lots of blockchains and assets.
The original hardware wallet. Trezor supports Bitcoin along with the most resilient & proven coins. Also open source!
Say goodbye to phishing risks and take your 2FA protection game to the next level. Yubico is the largest FIDO/U2F company!