How to: Backup BIP 39 Seed Words On Metal

DISCLAIMER: IT IS YOUR RESPONSIBILITY TO ENSURE THE WORDS ARE CORRECT AND CORRELATED IN THE PROPER ORDER ON YOUR KEYS. CRYPTO-KEYS WILL NOT BE HELD RESPONSIBLE. IF YOU DO NOT AGREE TO THESE TERMS DO NOT PROCEED.

Instructions:

Using Automatic Punch to Mark:

Supplies needed: Smooth Base, Seed words, Keys, Automatic hand punch tool and this BIP39 Word List.

Find a smooth surface like a table or countertop.
Remove the keys from the key ring.
Identify the 4-digit number from the BIP39 list for each seed word using this link to BIP39 Word List. This list can also be found on Github here.
Write down each seed word on the card provided use a fine tip sharpie.
Write down the numbers in order 1-12 or 1-24 correlating with your seed words on the card provided.
With separate paper and pen mark the number of dots in the arrangement for each number this makes it easier to see the pattern to punch later (optional).
Double-check to make sure all of the words match the corresponding BIP 39 numbers in the correct 12 or 24-word sequence written on the card.
Starting with the first key marked with a 1 punch in the corresponding 4-digit number code using the correct dot pattern.
Repeat for each key.
Double-check to make sure all of the numbers match the corresponding dot patterns for each seed word in the 12 or 24-word sequence.
If there is an issue order replacement keys here.
Assemble the keys on the keyring.
Perform a final check writing your words down on paper from the keys to verify they match. It is your responsibility to ensure the BIP39 words have been transcribed correctly into each key. Do not overlook this step it is critical that the BIP39 code matches each word in your seed phrase and placed in the correct sequence. If any word is either wrong or out of sequence you can lose access to your wallet forever.

A seed phrase, seed recovery phrase or backup seed phrase is a list of words which store all the information needed to recover your hardware/software wallet using BIP39. The software will typically generate a seed phrase and instruct the user to write it down. If the user's hardware wallet or mobile wallet becomes corrupted, they can purchase another hardware wallet or download the same wallet software again and use the metal backup to get their crypto assets back.

Anybody else who discovers the phrase can steal the crypto assets, so it must be kept safe like jewels or cash. For example, it must not be typed into any website or store in the open.

Seed phrases are an excellent way of backing up and storing your crypto assets. This is why they are used by almost all well-regarded wallets.