Seedsigner T-Shirt

*For shipments outside the USA, orders can take up to 4 weeks to be delivered. As annoying as it is, there may also be a customs fee. We are exploring ways to avoid this and welcome any sugestions.

80% will be donated to the Seedsigner Team!

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.