Can Bitcoin transactions be made private?

The blockchain is public, yet a Bitcoin wallet can be created anonymously. So are Bitcoin transactions anonymous? Not at all… Each transaction into and out of a wallet is a bread crumb. Following the trail is trivial. Every day, an … Continue reading

The Race to Own One Bitcoin

Owning one full bitcoin is becoming a recognized attainment goal. And thereby hangs a tale. Is it just a numbers game? Isn’t the unit a bit arbitrary and meaningless?… The logistics and the math are compelling. I recognized the importance … Continue reading

Spending Bitcoin in Person is Easy (What happens in background is elegant)

Today, I was co-host of an online cryptocurrency symposium—taking questions from hundreds of visitors. A common question goes something like this: Can Bitcoin be used in person—or is it just for internet commerce? Our panel had a moderator, and also … Continue reading

About the Fuss: Is Bitcoin really so important?

This afternoon, an automated bot at Quora suggested that I answer a reader question. Quora is essentially an “Ask the expert” web site. It is the world’s largest, cataloged and indexed Q&A repository. This is the question I was asked … Continue reading

Profit from Bitcoin without Investing or Trading

I find it encouraging that so many people want to know if they should get into Bitcoin. But, I am discouraged when I discover that “getting into” is a euphemism for investing, trading, flipping or HODL (Buy, then hold on … Continue reading

Lack of standards prompts new Bitcoin wallet advice

This update is an adaptation of my recent answer to a Quora reader who was in a panic. She asked: “What can I do after a hard drive crash? How can I recover my cryptocurrency?” In the past, I would … Continue reading

How can Bitcoin be divided into small units?

As with other recent articles, this one was originally published as an answer to a member of Quora, a Q&A site in which I am a cryptocurrency columnist. And just like the previous one in this series (also posted today), … Continue reading

Why is it impossible to create more units of Bitcoin?

This article was originally an answer to a member of Quora, a Q&A site in which I am a cryptocurrency columnist. The reader is a “Bitcoin beginner”. If you understand the nature and purpose of a blockchain, the political leanings … Continue reading

Update: Building (and placing!) a Bitcoin ATM

A new section about Bitcoin ATM business models has been added. Jump to “UPDATE – July 2019” The good news is that building a Bitcoin ATM is easy and less expensive than you might expect. But, offering or operating them … Continue reading

Bitcoin On a Tear; Ellery’s Updates

June 25, 2019 — Latest Bitcoin Updates In May and June 2019, Bitcoin’s dollar value rebounded handsomely. In just 3 months, it rose from $3850 to $11,800/BTC. «— and above $13,500 just after publication Pundits point to Facebook’s release of … Continue reading

Best Bitcoin wallet: Hardware or hosted?

The question asked in the title has been edited from what was asked today at Quora, the Q&A forum at which I participate as expert columnist. The original question was a bit more ambiguous: “Which is better? — a digital … Continue reading

You don’t understand Bitcoin because you think money is real

Maria Bustillos is founder of the blockchain supported publication, Popula. I stole the title of this post from her essay at Medium.com (linked below).* I hope that Maria considers it a tribute rather than title-plagiarism. Her article is blocked by a … Continue reading

Getting into Bitcoin? 2 subtle points…

Andreas Antonopoulos releases a new talk on his YouTube feed several times each week. If you are still a Bitcoin doubter, watch his latest video with an open mind. It highlights two subtleties of utility and adoption that can overcome … Continue reading

Ric Edelman: Bitcoin will become asset class

Kudos to WallStreet analyst and advisor, Ric Edelman. He drank the Kool-Aid, he understands a profound sea change, and he sees the ducks starting to line up. Check out the clearly articulated interview, below, with Bob Pisani at the New … Continue reading

How Will Bitcoin Work When Mining Rewards Run Out?

Let us frame the question, by reviewing what miners really do… Miners play a critical role in the Bitcoin network. Their activity (searching for a nonce) results in assembling an immutable string of blocks that corroborate and log the universal … Continue reading

Is Bitcoin Erasing 300 years of Monetary Evolution?

Today, economist and Nobel laureate, Paul Krugman, wrote in the New York Times, that Bitcoin is taking us back 300 years in monetary evolution. As a result, he predicts all sorts of bad things. A significant basis for Mr. Krugman’s … Continue reading

Extra PCs laying around? Why not mine Bitcoin?

I get this question a lot. Today, I was asked to write an answer at Quora.com, a Q&A web site at which I am the local cryptocurrency expert. It’s time to address this issue in my own Blog. Question I … Continue reading

What will it take for Bitcoin to be widely adopted?

Early adopters, speculators and Geeks are never sufficient to bring a new paradigm to market. Mass appeal and adoption of a mechanism that requires education and a change of behavior is never ‘fait accompli’—until it reaches a tipping point. Once at the … Continue reading

John Oliver explains Bitcoin, Blockchain & Crypto (with precision & clarity)!

John Oliver is a crossover who bridges the art of a comedian with the reporting and perspective of a liberal political pundit. Even detractors acknowledge that Oliver addresses serious issues with unusual wit and humor. I never thought Oliver could … Continue reading

Building a Bitcoin ATM is easy, but…

…But offering or operating them engulfs the assembler in a regulatory minefield! It might just be worth sticking to selling bitcoin on PayPal (visit this website for more information on that). A photo of various Bitcoin ATMs appears at the … Continue reading