The U.S.-based Bitcoin and Lightning mobile wallet Zeus recently announced an alpha-release integration of Cashu. The move marks the first integration of ecash into a popular Bitcoin wallet, breaking new ground for potential user adoption to Bitcoin.

Cashu is a hot new implementation of Chaumian ecash, a form of digital cash invented by David Chaum in the ’90s that has incredible privacy and scalability properties, with the trade-off of being fundamentally centralized, requiring a significant amount of trust in the issuer. 

In a counterintuitive move for Zeus, known as the go-to tool for advanced Lightning users seeking to connect to their home nodes, the integration of Cashu…

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