Your 12-24 recovery seed phrase is based on Bitcoin Improvement Proposal 39, known as BIP39, which allows the use of a language-based mnemonic phrase to serve as your backup in the event your wallet gets lost or becomes unusable.
The words are selected from a specific list of 2,048 common English words. While not all of the words have exactly four letters, each was selected in such a way that the first four characters unambiguously identify each word. This goes for the occasional three-letter word, too, in which the fourth character is blank. So if you have four tiles, you have your word.
Cryptosteel Mnemonic can hold up to 96 characters, which is exactly what you need to store a 24-word list in the BIP39 protocol. Each Mnemonic tile kit contains an optimised character count and spread for maximum functionality and ease of use. The kits are part-randomised for an extra layer of security.
ENTERING YOUR DATA INTO THE CRYPTOSTEEL CASSETTE
1. Open the cassette
Fan out the hinged front and back panels.
2. Unlock the unit
Turn the screw counterclockwise to a horizontal position.
3. Release the lever
Use a tile or small tool to press on the lever inside the long slot.
4. Open the frame
Keep the lever pressed as you open the frame.
5. Enter your characters
Insert your sensitive information, making sure all of the rows are fully loaded. If you are storing a recovery seed phrase, use only the first four characters. If a word has just three characters, use a blank tile to fill the space. Set the character tiles on a flat surface before inserting them into the slots. Use both panels..
6. Close the cassette
Shut the frame and twist the screw clockwise into a vertical position.
The classic design that established the offline metal backup market provides a lightweight and portable solution while being incredibly durable and secure.
No third-party involvement is ever required and gives the user the power to protect their information.
Product specifications
- Cassette dimensions: 106 x 60 x 6mm
- Cassette and tiles made of AISI 304
- Tiles consist of all capital letters from the Latin alphabet (From A-Z)
Package specifications
- Weight: 455 g / 1 lb
- Dimensions: 160 x 120 x 20mm / 6.3 x 4.7 x 0.8 in
- Contents:
- 1 x Cryptosteel Cassette unit
- 1 x Letter set (approx. 800 tiles)