The goal of SeedSigner is to lower the cost and complexity of Bitcoin multi-signature wallet use. To accomplish this goal, SeedSigner offers anyone the opportunity to build a verifiably air-gapped, stateless Bitcoin signing device using inexpensive, publicly available hardware components (usually < $50). SeedSigner helps users save with Bitcoin by assisting with trustless private key generation and multi-signature wallet setup, and helps users transact with Bitcoin via a secure, air-gapped QR-exchange signing model.
Printed by hand on Black, or Clay
The finest luxury hoodie available. Our organic, ultra-soft cotton fleece has a cozy brushed interior and is a standard unisex fit. Our luxury sweatshirts are reverse flatlock stitched and feature 4″ wide, double-folded, flat-knit side ribbing for added flexibility.  Additionally, no toxic dyes, chemical fertilizers or pesticides, or formaldehyde were used in the production of this product. This is an exceptionally high-quality and comfortable version of everyone’s favorite wardrobe essential, offered in bulk. These exceed every expectation.