Cryptocurrency-seed break card vault by Heigre

Last crawled date: 3 years, 1 month ago

Made a simple break-card to store your crypto-wallet 12/24 word seed. Design is based on the "launch code verification break cards" supposedly used in nuclear launch bunkers. Designed to fit with the empty spreadsheet card that comes with the Ledger Nano S hardware wallet.
Instructions:
Wrap the card you're planning to put inside in aluminum foil. This will prevent anyone from using a light source to look through it. It will also make it extremely hard to obtain the inside information using a radiation source or other material-penetrating techniques.
Use a brim on the print to make it stand up, and print it until there is a couple of layers left before it seals (around layer 600 using 200µm print layers). Then pause the print, insert the card, and then let the print finish.
This print will of course not inhibit anyone from stealing the card itself, so it should be placed somewhere safe and hidden. What it will do, is to a better degree ensure you that no one has seen the seed, and if they have seen it, you will know it has been tampered with, and should be disposed of.
Other:
Enjoying this design? In such case I'm very grateful for any donations.
Ethereum: 0xc6418f76BE9B837b35Fab16F89Ea97954E9b967E
Bitcoin address: 3843LL2Qkr3eQSriQCEH2zfrq6hioxvGpa