# Bitcoin Mining Code Things To Know Before You Buy

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

This isn't a great 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 think the block size should be increased to accommodate more data.

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

1MB of transactions can theoretically be as small as 1 transaction (though this is not at all common) or a few thousand. It depends on how much information the transactions consume.

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 have to be the first miner to reach the right answer to a numeric issue. This practice is also known as a proof of work.

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

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The bad news: Since it's guesswork, you need a lot of computing power in order to get there first. To mine successfully, you need to have a high"hash rate," which is quantified in terms of megahashes per 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 helpful calculator.

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

ExampleI tell three friends that I'm thinking about a number between 1 and 100, and that I write that number on a sheet of paper and seal it in an envelope. My friends don't need to guess the specific number, they simply must be the first person to guess any number that's less than or equal to this number I am thinking of.

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Let's say I'm thinking of the number 19. If Friend A guesses 21they lose because 21>19. If Friend visit this web-site B guesses 16 and Friend C supposes 12, then they've both technically came at workable answers, since 16<19 and 12<19. There is no"extra credit" for Friend B, even though B's answer was closer to the goal answer of 19. .

In Bitcoin conditions, simultaneous answers occur frequently, but at the end of the day there can only be one winning answer. When multiple simultaneous answers are presented which can be equal to or less than the target number, the Bitcoin network will decide by a simple majority--51%--that miner to honour. Normally, it is the miner who has done the most work, i.e.

The losing block then becomes an"orphan block" .

Now imagine I pose the"figure what number I am thinking of" question, but I am not asking only three friends, and I'm not thinking of a number between 1 and 100. Instead, I'm asking millions of prospective miners and I am thinking of a 64-digit hexadecimal number. Now you see that it is going to be extremely hard to guess the ideal answer.

## Help Wikipedia for Beginners

The number preceding has 64 digits. Easy enough to understand up to now. As you likely noticed, that number consists not just of numbers, but also letters of this alphabet. Why is that

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

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