Zooko Wilcox

Zooko Wilcox is a cypherpunk engineer who worked on DigiCash-era problems, Tahoe-LAFS, ZRTP and hash designs including BLAKE2. On 22 August 2010 Satoshi replied to him on BitcoinTalk with "Hey Zooko! " and thanked him for blogging about Bitcoin after the Cryptography list announcement. That single reply is enough to place him in this archive as someone Satoshi addressed by name.

In the years that followed he founded and led Electric Coin Company, the team that launched Zcash in 2016, and he served as its CEO until late 2023. He kept arguing that private payments were part of the original electronic-cash ambition, not an optional extra. On Bitcoin Takeover he talked about ecash, early skepticism of Bitcoin and the long attempt to decentralize Chaumian cash.

He is a bridge between 1990s privacy cash and post-Satoshi proving systems. That arc, from DigiCash-era work through Zcash leadership, is why he remains a prominent privacy-cash figure long after a single BitcoinTalk reply. The podcast episode is linked from his person page and from the timeline, cued to the chapter about Bitcoin's early days and his initial skepticism. That later public record is why the name still draws readers to this archive page.

That later public record is why the name still draws readers to this archive page.