About the author

David Gerard is the author of Attack of the 50 Foot Blockchain: Bitcoin, Blockchain, Ethereum & Smart Contracts — a sceptical look at the blockchain and cryptocurrency phenomenon. By day, he is a Unix system administrator; his job includes keeping track of exciting new technologies, and advising against the bad ones. He was previously an award-winning music journalist, and has blogged about music at Rocknerd.co.uk since 2001. He is a volunteer spokesman for Wikipedia, and is on the board of the RationalMedia Foundation, host of skeptical wiki RationalWiki.org. Originally from Australia, he lives in east London with his spouse Arkady Rose and their daughter. Until he reinstalled the laptop they were on, he was the proud owner of six Dogecoins.

Website: www.davidgerard.co.uk

Email: dgerard@gmail.com (best contact method)

Twitter: @davidgerard

Phone: +44 7733 223 584 (please also email)


Cover artist: Alli Kirkham is a South California artist, illustrator and writer. Her current project is a comic, PunkPuns.

Website: www.punkpuns.com/author


David’s wife, Rose Gerard (Arkady Rose), reviews most of his posts before they go out. They’re vastly improved by her beta reading. Check out her T-shirts and mugs and prints and stuff!


Book images

Please feel free to use these when writing about me or the book.



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