Write down your seed words
The seed phrase is the private key to your Bitcoin.
It's very important to have multiple copies of your Bitcoin seed phrase. This way, you can recover your Bitcoin even if you lose one.
Backup Stack
With the Backup Stack, it's easy to create a handwritten seed phrase backup. This allows you to optimally store your seed phrase.
You are also protected against physical damage, water and theft.
Perfect combination of 3 ingredients
For 2 Powerful Seed Phrase Shields
First protective shield: TerraPhrase Paper
Make your Bitcoin rice fest
Make your Bitcoin waterproof
Second protective shield: theft protection
Notice if someone gains access to your seed phrase so you can save your Bitcoin in time.
nothing goes unnoticed
Each security bag has a unique number that is torn off. Since the bag cannot be resealed, you can always use this number to verify that no one has had unauthorized access to your seed phrase.
So you can sleep peacefully.
In an emergency you are safe
If someone were to gain unauthorized access to the seed phrase, they wouldn't be able to steal your Bitcoin. They would still need your passphrase or the necessary parts of your multi-signature setup.
By noticing the theft attempt, you can easily transfer your Bitcoin to a new secure wallet using your passphrase or multi-sig. This way, the thief gets nothing.
two variants
24 seed words
Perfect if you have a 24 seed word seed phrase.
Seed QR
Allows you to copy a seed QR code. Instead of laboriously typing it in, you can simply scan the seed with your hardware wallet and import it into the hardware wallet.
Perfect for the Uncle Jim Wallet
With the Uncle Jim Wallet, you can print out your X-Pub and Bitcoin addresses and place them at the back of the backup stack. This way, you, or someone you gift the Uncle Jim Wallet to, can verify the seed phrase addresses analogously, without the need for a hardware wallet.
Tamper Evident Bags
A single tamper-evident bag is usually not enough, as it needs to be replaced after each use. Buy a few more.
Do you want to make your Bitcoin seed phrase even more secure?
A metal backup is even more stable. Protect your seed words from fire, water, acid, corrosion, and virtually anything else that could happen in the natural world.
English (UK) 
Deutsch