Bitcoin Internals: Chris Clark
Neat book for an overview to whet your appetite. 100 pages. Readable in a few hours.
Category Archives: Bitcoin
Digital Gold: Nathaniel Popper
Fantastic book. Highly recommend. 400 pages with solid references. Takes you on a whirlwind tour back in time. Gripping few days of reading.
Connecting to your Bitcoin node from another computer
If you are running a Bitcoin node on one of your servers that has an internal IP of 192.168.1.x then you’ll know you can hit the API using localhost or 127.0.0.1 But what if you want to make a JSON-RPC call from another computer from with your local network? If it is not configured, you’ll… Read More »
Bitcoin ATM machines are not that scary
Have you ever wondered how to use a bitcoin ATM machine? I did so I set out to discover exactly how I could withdraw cash from one. I did as much research on the Internet as I could but still didn’t fully understand what to do. Here is a step by step guide of what… Read More »
How to convert litecoins to bitcoins
First of all create an account at: https://btc-e.com. 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
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 https://bitcoin.org/en/choose-your-wallet or https://litecoin.org/ and chosen to download the… Read More »
Blockchain – Blueprint for a new economy: Melanie Swan
Very good book and very informative. Recommended reading. 230 pages. Readable in a day.
Bitcoin hash rate on an Intel i5 – 4200U chip
500 hashes per second is my current hash rate on my laptop. This is without code optimization running Ubuntu in Oracle virtual box.
SHA’ing on your computer
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?
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 »