# Everything about Bitcoin Mining Code

Let us say you had one legit $20 and one really good photocopy of the same $20. If someone were to attempt to spend both the real bill and the fake one, someone who took the trouble of looking at either of the invoices' serial numbers would see that they were exactly the same number, and thus one of them had to be false.

This isn't a perfect analogy--we'll explain in more detail below. .

Once a miner has verified 1 MB (megabyte) worthiness of Bitcoin transactions, they are eligible to win the 12.5 BTC. The 1 MB limit was established by Satoshi Nakamoto, and is a matter of controversy, as some miners believe the block size should be increased to accommodate more data.

Note that I said that verifying 1 MB value of transactions makes a miner eligible to earn Bitcoin--not everyone who verifies transactions will receive paid out.

1MB of transactions can technically be small as 1 transaction (though this is not in any way common) or several thousand. It depends on how much information the transactions take up.

In order to earn Bitcoin, you need to fulfill two conditions. One is a matter of work, one is a matter of luck.

2) You must be the first miner to reach the right answer to a numeric issue. This process is also known as an evidence of work.

The fantastic news: No advanced math or computation is involved. You might have heard that miners are solving difficult mathematical problems--that's not true in any way. What they're actually doing is trying to be the first miner to come up with a 64-digit hexadecimal number (a"hash") which is less than or equal to the hash.

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The bad news: Since it is guesswork, you need a lot of computing power in order to get there . To mine successfully, you need to get a higher"hash rate," that is measured in terms of megahashes per read here second (MH/s), gigahashes per second (GH/s), and terahashes per second (TH/s).

If you want to estimate how much Bitcoin you can mine along with your mining rig's hash pace, the website Cryptocompare provides a very helpful calculator.

Either a GPU (graphics processing unit) miner or an application-specific integrated circuit (ASIC) miner. These can run from $500 into the tens of thousands. Some miners--particularly Ethereum miners--purchase individual graphics cards (GPUs) as a cheap method to cobble together mining operations. The photo below is a makeshift, home-made mining machine. The cards are those rectangular blocks with whirring circles. Note the sandwich twist-ties holding the pictures cards to the metal rod.

Example: I tell three friends that I'm thinking about a number between 1 and 100, and I write that number on a sheet of paper and seal it in an envelope. My friends don't have to guess the exact number, they just have to be the first person to guess any number that is less than or equal to this number I'm thinking of.

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Let us say I'm thinking about the number 19. If Friend A guesses 21they lose because 21>19. If Friend B guesses 16 and Friend C guesses 12, then they have both theoretically arrived at viable answers, since 16<19 and 12<19. There is no"extra credit" for Friend B, even though B's answer was nearer to the target answer of 19. .

In Bitcoin conditions, simultaneous answers happen frequently, but in the end of the day there can only be one winning answer. When multiple simultaneous answers are presented which can be equivalent to or less than the target number, the Bitcoin network will determine by a simple majority--51%--that miner to honour. Typically, it's the miner who has done the work, i.e.

The losing block then becomes an"orphan block" .

Now imagine that I present the"guess what number I'm thinking of" question, but I'm not asking only 3 friends, and I am not thinking of a number between 1 and 100. Instead, I'm asking millions of would-be miners and I am thinking of a 64-digit hexadecimal number. Now you see that it's going to be extremely difficult to guess the right answer.

## Bitcoin Mining Code Fundamentals Explained

The number above has 64 digits. Easy enough to understand so far. As you probably noticed, that number consists not only of web link numbers, but also letters of the great post to read alphabet. Why is that

In order to understand what these letters are doing in the center of numbers, let's unpack the term"hexadecimal."

As you know, we utilize the"decimal" system, which means it's base 10. This in turn means that every digit has 10 possibilities, 0-9.