Jason Dreyzehner

Design Lead at BitPay. Web-tech tinkerer, Bitcoin nerd, and Agile student of the Austrian School.

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Bitcoin vs. Bits & The Legacy Financial System

Over the past few months I’ve been participating in the Bitcoin Foundation’s Financial Standards Working Group (as time permits). Below are my thoughts on ISO Standardization.


It seems there are two primary areas for standardization: 1) display unit user preferences, and 2) software modeling and communication.

Formatting numbers for users is technically trivial, and probably needs no standardization at this stage in Bitcoin’s growth; product designers are already well incentivized to offer users in-demand options and reasonable defaults for viewing balances. (Product design teams are also likely better equipped than us to answer those questions.)

On the other hand, communication between software packages is non-trivial and already causing problems in bitcoin implementations. Jeff Garzik’s thoughts here are very relevant:...

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Reflections on Judging Open Source Software Development

On June 28th and 29th, I had the opportunity to participate in judging the Open Source Software Development (OSSD) competition at the 2014 National Technology Student Association Conference.

This competition was quite exciting for me — it’s one I wrote in early 2009.

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OSSD made its debut at the 2013 national conference, but this was the first year I was able to judge. To summarize, I’m very impressed by the quality of work entered. Several of the entries displayed a level of technical knowledge unmatched in many professionally developed open source projects.

In reviewing and scoring real entries, the other judges (Angela Roller and Rob Little), event coordinator (Brandon Frye), and I had the opportunity to review the competition guidelines and scoring system in context. I’d like to reflect a bit on some personal observations and lessons learned; in the spirit of open source, it seems...

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Happy Birthday, Satoshi: a Milestone in the History of Money

As Gwern’s careful sleuthing revealed, Satoshi Nakamoto listed his birthday as April 5, 1975 on his P2P Foundation profile.

As Gwern mentions, April 5 has no outward significance to Satoshi or Bitcoin.

There is, as far as I can tell, nothing special about 5 April; it’s not a round number, it’s not a symbolic date, it’s not your usual fake birthday like 1 January or April Fools, it’s not the day Satoshi signed up for P2P [Foundation] … , it’s not related to when Bitcoin was released (January) or when the domain was registered (August) etc etc. So it seems like a good guess at a birthday.

However, upon further research, it seems highly probable that Satoshi chose this date symbolically. As Edlund10 points out, this is a very important date in the development of money.

The Outlawing of Gold

On April 5, 1933, U.S. President Franklin D....

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BitPay Launches Rebranding

We’ve been hard at work building powerful infrastructure for the next wave of bitcoin adoption.

BitPay’s early identity served us well for our first 3 years, but we’ve come a long way since 2011.

We’ve gone from a small bitcoin startup, to a growing center of bitcoin innovation. We’re quickly recruiting developers in offices across North America, Europe, and South America; we’ve written, contributed to, and implemented BIP standards; we’ve developed the most responsive client operations team in the industry; we’re constantly building and launching major open-source projects for the bitcoin community, including Bitcore and Insight; and we’ve developed the most powerful, reliable payment processing infrastructure in the bitcoin space.

It’s time our visual identity matched our new core, so today we’re launching an updated web presence and a new brand.

BitPay's updated web presence.

BitPay’s updated web presence...

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