About the brand
Vulcan 21 makes STEELQR, a free and open-source metal seed backup made from military-grade 316L stainless steel for securing 12 or 24-word Bitcoin seed phrases. The seed is encoded as a QR code using a SeedSigner device and stamped onto the steel with a center punch, and the product is released under the GPLv3 license. The company offers C12 and C24 variants plus onboarding cards, donating a share of profits to SeedSigner development.
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Vulcan 21 products
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