Cryptosteel Capsule is the premier backup tool for autonomous offline storage of valuable data without any third-party involvement. The solid metal device, designed to survive extreme conditions, works under nearly all circumstances. It is compatible with most secret sharing and key generation algorithms.
The Capsule can store important information in up to 123 characters. Autonomous. Personal. Anonymous. Tangible.
Capsule dimensions: length 102mm, diameter 16mm
Solid metal construction – 100% stainless steel
Shell made of AISI 303
Core, separators, fasteners and character tiles made of AISI 304
Packaging includes all printable ASCII characters (96 different characters).
Backup type compatibility
100% coverage for:
- BIP39 (unabbreviated 12-word recovery seeds or 4-letter abbreviations of 24-word recovery seeds)
- Shamir Backup SLIP39 (4-letter abbreviations of 20-word recovery seeds)
- BIP32 root keys
- WIF private keys
- Monero mnemonic seeds (4-letter abbreviations of 25-word recovery seeds)
more than 99% coverage for:
- hexadecimal strings up to 123 characters
- random ASCII strings up to 55 characters
Coverage based on analysis of more than 3.5M samples.