In this page you will learn everything you need to know to properly setup the Board S by CryptoNumeris in great detail. Find a comfortable space to do this.
Things you will need 🡪
Blue pen
A heavy hammer or mallet (16oz/0.5Kg min.)
A flat and sturdy surface
Eye and ear protection
A bit of patience
Recommendations 🡪
Do this alone
Keep any phone/camera away
Never input your seed digitally
Don't tell anyone where you keep your plate
Step 1: Define the seedphrase you want to backup.
Choose which wallet you want to keep long term. It can be your hardware wallet, your phone/desktop wallet or even a paper wallet. After you've decided which one, get your seedphrase backup ready in hand.
Step 2: Prepare to convert your seedphrase.
Grab your blue pen and the conversion sheet included in the package, then write your seedphrase on it.
Double check everything is correct.
Step 3: Convert your seedphrase into numbers.
By comparing each word of your seedphrase with the BIP39 standard, you can convert them into a unique number between 1 and 2048. You need to do this conversion for each word of your seedphrase and write the numbers in the conversion sheet in the same order as your original seedphrase.
A paper BIP39 English wordlist is included in the package, or you can also refer to the original source.
WARNING: Do not input your seedphrase digitally. Please do this step 100% offline with pen and paper. Do not use tools like "CTRL+F" to convert your seed.
Example:
| 1. various 2. gadget 3. target 4. bridge 5. crystal 6. transfer 7. occur 8. accuse 9. hospital 10. usage 11. million 12. control |
→ 1933 → 758 → 1776 → 223 → 427 → 1850 → 1223 → 14 → 880 → 1917 → 1126 → 380 |
Double check everything is correct.
Step 4: Get ready to punch the numbers.
Grab the heaviest hammer/mallet you have and look for a flat and sturdy surface (wood, metal). Additionally, get the center punch tool and safety glasses. We also recommend to protect your ears.
Step 5: Punch the numbers into the plate.
Proceed to punch the numbers by giving one single good hit into the plate with your hammer using the center punch tool.
Take your time to punch the dots in the correct cell and position, this is the most tedious part. You need to stay focused to avoid hurting your fingers with the hammer and to punch everything in place.
Tip: You may use a marker to "pre-fill" the cells you have to punch, this may help as a visual guide and reduce the chance of a mistake.
Example:
Final product:
Double check everything is correct.
Step 6: Destroy the conversion sheet.
After you have punched the seed unto the steel, there's really no need to keep the conversion sheet so you can get rid of it by burning it 🔥.
Step 7: Put your backup in a safe spot.
Once you've finished the entire process, put your steel backup in a safe spot only you know.
🎉 Done!
Want to be extra safe?
You may decode your seedphrase from the steel backup and see if it matches 100% exactly with the original. This is a tedious task but it's the easiest way to compare and verify your new timeless backup.
Notes:
- If your seedphrase is a 8 or 12 word format, you can still use this product.
- For numbers smaller than 4 digits, you can stamp with or without zeros (Example: ahead = 0042 = 42)