Recommended pairing
Your SteelQR protects your seed phrase from fire and water. The NovaSapienBTC Self-Custody Kit gives you everything around it: quality materials chosen for best practice, so you can set up with confidence knowing every detail has been considered.
$134 when added to this order (usually $149). Save $15
Price range: $45.00 through $199.00
The steel QR is manufactured and designed by Vulcan 21 in Germany. It is a 3mm 316L military-grade stainless steel plate that encodes 12-word (C12) or 24-word (C24) BIP-39 seed phrases as compact QR codes for secure, long-term cold storage backups. Fireproof up to ~1,400–1,500°C, waterproof, corrosion-resistant, and compatible with SeedSigner, Foundation Devices, Coldcard, and more. Open-source design (GPLv3). $45 per plate.
Share
The SteelQR is an open-source hardware backup solution that converts a BIP-39 compliant 12-word (C12) or 24-word (C24) seed phrase into a compact QR code format etched or punched onto a 3mm thick 316L military-grade stainless steel plate. This provides a highly durable, offline cold storage backup method resistant to water, corrosion, and extreme heat—capable of withstanding temperatures up to ~1,400–1,500°C before significant degradation.
The QR code is readable only by compatible devices such as SeedSigner, Foundation Devices Passport, Coldcard, or other BIP-39/QR-supporting wallets, preventing unauthorized scanning on non-compatible readers. For C24 versions, the QR can be permanently marked using a center punch (sold separately) for fully air-gapped, offline permanence.
This SteelQR can be purchased together with the NovaSapien Self-Custody Kit – Sovereign Backup System for a complete, best-practices self-custody solution that pairs the steel plate with comprehensive backup materials.
NovaSapien’s online self-custody courses offer detailed, step-by-step guidance on seed management and offline backups. If you’re unfamiliar with SeedQR or QR-based backups, the courses provide clear, approachable instructions—take your time to build a thorough understanding. You can also reach out to NovaSapien directly for assistance. Official resources are available at seedsigner.com.
Unused and undamaged plates can be returned within 30 days. No returns on opened or used products.
SteelQR is a 3mm 316L stainless steel plate that encodes 12-word (C12) or 24-word (C24) BIP-39 seed phrases as compact QR codes for secure, long-term offline cold storage backups.
Made from 316L military-grade stainless steel, it is waterproof, corrosion-resistant, and fireproof up to ~1,400–1,500°C before significant degradation—designed to protect seeds for decades in extreme conditions.
Convert your seed phrase to QR code (using SeedSigner or compatible software), then engrave or mark the QR onto the plate. For C24, optionally use a center punch for permanent, air-gapped storage.
Yes—fully compatible with SeedSigner, Foundation Devices Passport, Coldcard, and any BIP-39/QR-supporting wallet. The QR format is readable by these devices for quick restoration.
If the plate is lost without redundant backups, your seed is unrecoverable. Always create multiple copies in geographically separate locations using best practices from NovaSapien courses.
Yes, using a center punch (sold separately) for C24 or manual engraving tools. NovaSapien courses provide guidance on safe, accurate marking.
NovaSapien’s online self-custody courses offer detailed support on seed backups and offline storage—if you’re unfamiliar with SeedQR or QR-based backups, the courses provide clear guidance. You can also reach out to NovaSapien directly for assistance. Additional resources at seedsigner.com.
| Type | C12, C24 |
|---|---|
| Attribute | 1x, 3X, 6X |
| Material | 316L military-grade stainless steel |
| Thickness | 3mm |
| Fire resistance | Withstands ~1,400–1,500°C before significant degradation |
| Weight | ~0.2 kg per plate |
| Dimensions: | ~85 × 55 × 3 mm (approximate) |
| Warranty | 360 days on components |
Take the first step toward unlocking your true potential. Whether you’re looking to build your skills, enhance your knowledge, or create a secure future, this is your opportunity to start making a lasting impact today.
Recommended pairing
Your SteelQR protects your seed phrase from fire and water. The NovaSapienBTC Self-Custody Kit gives you everything around it: quality materials chosen for best practice, so you can set up with confidence knowing every detail has been considered.
Reviews
There are no reviews yet.