Cashu
Layer 2● Common
A free and open-source Chaumian eCash protocol for Bitcoin, enabling private and near-instant transactions. Unlike Fedimint, Cashu mints are typically single-operator, trading trust distribution for simplicity and interoperability.
Technical Notes
Uses BDHKE (Blind Diffie-Hellman Key Exchange) for blind signatures. Tokens encoded as base64 cashuA... strings. Multi-mint tokens enable atomic swaps between mints. NUTs (Notation, Usage, Terminology) define protocol specs.
Metadata
Visibility: Public
Created:1/3/2026by System