Double spend attack

Posted by on Apr 10, 2014 in Thoughts | 2 Comments

In this article, I will give an example how a double spend attack could be performed.  When a transaction is broadcast to the network, a transaction id is returned to the client.  However, this is not proof that that transaction has been sent. Therefor, if a project incorrectly implements this as a confirmation of payment, […]

Bitcoin Public and Private Keys Explained

Posted by on Mar 12, 2014 in Technical, Thoughts | No Comments

At its core, a Bitcoin address starts with just a number, albiet an extermely large number. So lets take a number. 31.   As a lot of Bitcoin math uses base 16 or hex numbers, we choose 31 so we can also show the conversion process. 31 in hexadecimal becomes 1F:  1 x 16^1 + 15 […]

ABC News 24 Interview

Posted by on Mar 1, 2014 in Interviews, Thoughts | No Comments

I was contacted by Channel 24 ABC News to give a live interview on the Mt Gox crises. Here it is!

Skype hasn’t killed the phone

Posted by on Jan 29, 2014 in Thoughts | No Comments

And Bitcoin won’t kill the banks. Skype is a great technology.  There was a lot of noise 10 years ago when Skype was becoming main stream.   I heard a lot of tech “experts” say… “You would run it on your mobile handset, use wifi, and never pay for a phone call again.” Those predictions […]