Cryptotag Titanium Seed Backups

Cryptotag makes titanium seed phrase backups, designed in the Netherlands. You punch your recovery words into titanium plates that survive fire, water and corrosion far better than paper.

Zeus is the starter kit: two titanium plates for 24 words plus the center punch tool. Expansion kits add more plates but no tools, so you need a starter kit to mark them. Odin 3, 5 and 7 are for Shamir (SLIP39) backups, with one titanium hexagon of up to 20 words per share.

Zeus stores any standard BIP39 recovery phrase of up to 24 words, so it works with Ledger, Trezor, KeepKey, BitBox and most other wallets. Odin is for SLIP39 Shamir backups, including single share and multi share backups on the Trezor Model T, Safe 3 and Safe 5, and on Keystone wallets that support SLIP39.

Cryptotag rates its titanium plates to 1,667°C (3,032°F), far above the heat of a typical house fire.