Szabo is a computer scientist, cryptographer, the designer of BitGold and a smart contracts pioneer. Back is an applied cryptographer with a computer science PhD in distributed systems, the inventor of Hashcash and cofounder and CEO of Blockstream. Chaum is best known for his fundamental innovations in cryptography, including privacy technology and secure election systems, as well as digital cash, and is currently leading Elixxir and Praxxis. Both Back and Chaum are cited in the Bitcoin white paper, while Szabo’s influence has been mentioned by Satoshi on Bitcointalk.org.
From the cryptography and cypherpunk movements to David’s DigiCash, Adam’s Hashcash proof-of-work, Nick’s BitGold and more, their contributions were foundational to the development of Bitcoin, and it was fascinating to have them together and playing off of each other in a discussion of that history.
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