Bitcoin Cold Wallet

Maximum security. Minimal complexity.

A dedicated hardware wallet concept for offline signing, long-term self-custody and deliberate transaction approval.

₿   Bitcoin Cold Wallet

Offline signing

Approve transactions on a dedicated device without exposing keys to a general-purpose environment.

Secure element

Hardware-backed protection for sensitive key material and signing operations.

Open software

Documented and auditable software components wherever practical.

Backup & recovery

Clear recovery workflows designed around robust backup practices.

Multi-device compatibility

Designed to work with Bitcoin Mobile, Bitcoin Computer and independent node workflows.

Deliberate approval

Physical confirmation for high-confidence signing and transaction review.

Self-custody

Your keys remain the center of the system.

Bitcoin.org emphasizes that users can hold bitcoin themselves rather than relying on a bank or company. This product concept is built around that principle, while recognizing that self-custody carries security responsibilities.