21 BTC

David Chaum

chaum.com
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Cryptographer; invented blind signatures and ecash, founded DigiCash

Pioneer of digital cash and online anonymity: blind signatures, mix networks and the Dining Cryptographers protocol. His company DigiCash launched eCash in 1995. The Bitcoin whitepaper does not cite him, and there is no documented contact with Satoshi.

Limited sources
Joined: 1982 · 1982: dissertation at UC Berkeley · en.wikipedia.org ↗ secondary

Limited sources. Most facts here (9 of 11) come from secondary or unconfirmed sources; check the badge next to each one.

  • X · @xx_network (project): Official account of xx network, the project he leads (linked from xx.network); no personal X account confirmed
Museum format: every post is a real, sourced quote. Quotes stay in the original English; the Russian line is our translation.Source badges on this profile: primary 2 · secondary 9 · unconfirmed 0
David Chaum · life event
1982 secondary
📌 Dissertation “Computer Systems Established, Maintained, and Trusted by Mutually Suspicious Groups”
David Chaum · life event
1981 secondary
📌 Paper “Untraceable Electronic Mail, Return Addresses, and Digital Pseudonyms”