Ecash Makes Bitcoin — And CBDCs — Private With Calle’s Cashu

Editor’s note: Cashu is a protocol, not a company.

Founders: Calle

Date Founded: October 2022

Location of Headquarters: Remote

Amount of Bitcoin Held in Treasury: N/A

Number of Employees: 20-30 open-source developers

Website: https://cashu.space/

Public or Private? N/A

Of Bitcoin’s many notable properties, privacy isn’t one of them.

In fact, the transparency of the Bitcoin blockchain contrasts starkly with the privacy that Chaumian ecash, a form of digital cash created by legendary cryptographer Dr. David Chaum in 1982, offers.

So, what do these two technologies have to do with one another?

Well, 40 years after the invention of ecash and after a failed attempt to integrate it into the…

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