Category Archives: Bitcoin

How to convert litecoins to bitcoins

By | August 3, 2015

First of all create an account at: Then click on finances -> deposits. You will then be given an address to send your litecoins to. Copy this address into your litecoin wallet. I use Electrum. There is a 0.001 LTC fee and you will be asked to authenticate the transaction.   Your transaction will… Read More »

./bitcoin-qt permission denied

By | July 15, 2015

Are you getting these errors on Ubuntu? >./bitcoin-qt > permission denied > sudo ./bitcoin-qt > command not found or the same with litecoin? >./litecoin-qt > permission denied > sudo ./litecoin-qt > command not found First of all, let’s back track a bit. You have probably gone to or and chosen to download the… Read More »

SHA’ing on your computer

By | April 23, 2015

Understand how bitcoin mining works can seem like a huge task. They key is to break it down piece by piece. The first step is to understand what SHA256 is. Search on Google and read all you can about it. Then read this document: fips-180-4.pdf. The Federal Information Processing Standards Publication. Spend 2 weeks reading… Read More »

What does upside down V and plus inside a circle mean?

By | April 19, 2015

If you have been looking at bitcoins and in particular the SHA256 algorithm, you would have come across this formula: Maj(x,y,z)=(x∧y)⊕(x∧z)⊕(y∧z) Ch(x,y,z)=(x∧y)⊕(¬x∧z) The first thing I said to myself was “What the heck does this mean? Do I need a PhD to understand this?” Well, the good news is that the meaning is pretty simple… Read More »