Hashcash, every mention

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every year anyone Chris Dixon 6Alex Rampell 2Michael Copeland 1Diogo Mónica 1

Verbatim, from the transcripts: the passages where Hashcash comes up

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Ben Horowitz on AI Anxiety, Big Tech Transitions & The Future of Startups | a16z Apr 14, 2026 · 3 mentions

  • ▶ 14:43 unnamed speaker I mean, you remember the origins of crypto was hash cash. 3 times in the scene

Founding Stories: Anchorage Jun 24, 2019 · 1 mention

  • ▶ 1:29 Diogo Mónica So it turns out that there's some utility 12 years later about this, um, this, um, publishing academic papers, and Byzantine Full Tolerance, and, uh, working on Hashgash, and, uh, working on distributed randomness.

a16z Podcast | Hard Forks, Hard Choices for Bitcoin Jan 2, 2019 · 1 mention

  • ▶ 1:08 Michael Copeland Back invented Hashcash, a proof-of-work system, which, among its other applications, is used in Bitcoin mining.

Company Building in Crypto: A Conversation between Brian Armstrong and Chris Dixon Dec 21, 2018 · 6 mentions

  • ▶ 30:51 Chris Dixon And so, you know, just think, you know, Bitcoin, of course, has hashcash built in. 6 times in the scene

Decrypting Crypto: From Bitcoin and Blockchain to ICOs Dec 9, 2017 · 2 mentions

  • ▶ 7:03 Alex Rampell The first was something called hashcash, um, and hashcash came out in, um, 1997, and the idea was to prevent spam by having the sender of a message do lots of computational work that takes about 25 seconds, so you want to have a hash where… 2 times in the scene
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