Hey! I'm David, cofounder of zkSecurity and the author of the Real-World Cryptography book. I was previously a crypto architect at O(1) Labs (working on the Mina cryptocurrency), before that I was the security lead for Diem (formerly Libra) at Novi (Facebook), and a security consultant for the Cryptography Services of NCC Group. This is my blog about cryptography and security and other related topics that I find interesting.

Two And A Half Coins episode 5: Bitcoin transactions, the Bitcoin script and UTXOs posted May 2023

In the 5th episode of this series I interview Arik Sosman (our very first guest!) in order to learn more about Bitcoin transactions. Specifically, how the Bitcoin scripting language works, and what UTXOs are!

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