Episode 88: Hashcash and Bit Gold

In this episode of Bitcoin, Explained, Aaron and Sjors discuss two electronic cash projects that predate Bitcoin: Adam Back’s Hashcash and Nick Szabo’s Bit Gold. As detailed in Aaron’s new book, The Genesis Book, these systems introduced design element that were later utilized by Satoshi Nakamoto. Aaron and Sjors explain what these elements are, and how they inspired Bitcoin’s design. To buy Aaron’s new book, visit ⁠www.thegenesisbook.com⁠.
 Mentioned: * 1992 Dwork & Naor: Pricing via Processing or Combatting Junk Mail * 2002 Back: Hashcash - A Denial of Service Counter-Measure * Bit Gold: Bitcoin Magazine article (1998) * One-way function: Wikipedia * Secure-benchmark function: Intrapolynomial Cryptography (1999) === This episode’s sponsor: CoinKite, maker of the ColdCard Aaron's Twitter: @AaronvanW Aaron’s Nostr: npub1art8cs66ffvnqns5zs5qa9fwlctmusj5lj38j94lv0ulw0j54wjqhpm0w5 Sjors’ Twitter: @provoost Sjors’ Nostr: npub1s6z7hmmx2vud66f3utxd70qem8cwtggx0jgc7gh8pqwz2k8cltuqrdwk4c If you’d like to sponsor the show, please email info at bitcoinexplainedpodcast.com https://bitcoinexplainedpodcast.com/