Bitcoin

Is bitcoin the "currency of criminals"?

A followup to my viral hit, "No, THIS is what bitcoin is, really...", which garnered voer 2,600 Likes on LinkedIn within a week. (Like that article, this one was written for myself, not commissioned by LinkedIn.)

Blog post as it appeared online
Date of publication: 
Thu, 06/08/2017

No, THIS is what bitcoin is, really...

A rebuttal to a misleading critique of bitcoin's economy. Full title is "No, THIS is what bitcoin is, really: Four ways Greg Leffler is wrong, wrong, wrong". (Personal post; not commissioned by LinkedIn.) It was a viral hit, garnering over 2,600 Likes within a week.

Blog post as it appeared online
Date of publication: 
Thu, 06/01/2017

Video for "A Fistful of Bitcoins"

An interview with Sarah Meiklejohn, lead author of a paper that describes how she and her colleagues unmasked some bitcoin owners, despite the common belief that bitcoin is anonymous.

Screenshot of the video as it appears on Vimeo
Date of publication: 
Wed, 03/23/2016

Does Bitcoin Matter?

A blog post to support my course, "Up and Running with Bitcoin".

Screenshot of blog post
Date of publication: 
Mon, 08/11/2014

Appearance on "Authored Content" show, talking about Bitcoin

I talk off the cuff about the popular cryptocurrency with fellow lynda.com authors Morten Rand-Hendriksen and Ray Villalobos on their Google Hangout show, "Authored Content".

Screenshot taken during my presentation
Date of publication: 
Fri, 07/18/2014

Up and Running with Bitcoin

Description by lynda.com: "Understand the basics of bitcoin, the popular virtual currency, and then learn the nuances of bitcoin transactions and security issues that can be difficult to navigate on your own. Tom Geller addresses both the big and small issues swirling around bitcoin right now, and prepares you to use or accept bitcoin as a currency for your transactions. Discover how bitcoin compares to US dollars and other forms of money; how to send, receive, and "mine" it; and how to protect and track your bitcoin transactions.

Screenshot from Up and Running with Bitcoin
Date of publication: 
Tue, 06/24/2014

Regulators ask: What is Bitcoin?

An article about legal challenges to the decentralized virtual currency Bitcoin, specifically on how the question of its definition affects its place in law.

Image of the article as it appeared online
Date of publication: 
Tue, 05/28/2013
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