Showing posts with label Electronic money. Show all posts
Showing posts with label Electronic money. Show all posts

Wednesday, October 22, 2014

Government Briefing or Education On Bitcoin and Bitpay Digital Currency

The bitcoin logo
The bitcoin logo (Photo credit: Wikipedia)



Though we have not used this digital currency as of yet, we happen to like most of the facts and information surrounding Bitcoin and a few of the other digital currencies.  They are not controlled by any governments and it is extremely difficult to manipulate this form of currency, especially by any government of any country.  Here is nearly a two hour video for those who are still not familiar with Bitcoin.  Even though this is a Canadian briefing, it applies to every country in many areas.


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Friday, June 27, 2014

Bitcoin 101 - Calling All APIs - Live Streaming Price Data From Bitcoin Exchanges

The bitcoin logo
The bitcoin logo (Photo credit: Wikipedia)



Confused about APIs and JSON? Looking to run an arbitrage business or build a data intensive site? Well this video is for you. This is the first of our videos looking at programming calls for exchange data. In just a few lines of code, we grab the last price from four exchanges (Btc-e, Kraken, Bitstamp and Bitfinex) and pseudo exchange extraordinaire, Coinbase. James walks you through the first steps of building a live feed of this data.

Wednesday, May 21, 2014

Bitcoin 101 - What is Bitcoin? - A Beginning Video for Bitcoin New Comers

The bitcoin logo
The bitcoin logo (Photo credit: Wikipedia)



Having trouble understanding Bitcoin as a beginner? Well, even Bitcoin's anonymous developer, Satoshi Nakamoto, commented on how difficult it is to explain Bitcoin to a beginner.

But we've been teaching Bitcoin for over a year now and we're starting to figure it out. This video is the result of a talk we did at Harvard University in April 2014 for Bitcoin beginners. Many of them mentioned that this talk helped them to finally understood the basic idea and we hope it works for you too. Even better, it is a story, covering the failures and difficulties of creating a digital currency, so for non-techies it is more accessible as well.


Our Notes:
A new video but an old story for people on this site.  The news of Bitcoin continues to grow and more people are becoming very interested in all of the potentials behind this digital currency, and all for good reason, so we take those new to the trend back to the very beginning.
 
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Thursday, April 17, 2014

Bitcoin 101 - The Nightmare of a 51% Attack - Part 1 - Calculating The Costs

The bitcoin logo
The bitcoin logo (Photo credit: Wikipedia)



Proof of work is a new technology, and it has amazingly protected Bitcoin for five plus years. Still, there may be no greater point of weakness in Bitcoin. While a 51% attack doesn't appear to offer a lot of financial gain, monetary gain may not be the motive of the attacker. In part one, we go through a cost analysis of the current hardware needed to launch a successful 51% attack to get a better picture how much it might cost. Unfortunately, the numbers are lower than expected, and most of the previously published values come in three to fifty times higher than actuality. In part two we will talk more about what an attacker might be able to do (double spending is not the worse tool at their disposal) and we prod at some possible solutions. Stay tuned.

Welcome to WBN's Bitcoin 101 Blackboard Series -- a full beginner to expert course in bitcoin. We hope you enjoy. And remember the official WBN launch is coming up : July 1st, 2014.
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Tuesday, April 15, 2014

Sunday, March 23, 2014