# How Bitcoins Are Made Can Be Fun For Anyone

Let's say you had one legit $20 and one quite good photocopy of that same $20. If someone were to try to spend both the real bill and the imitation one, someone who took the trouble of looking at both of those invoices' serial numbers would observe that they had been 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 confirmed 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 an issue of controversy, as some miners believe the block size ought to be increased to accommodate more information.

Note that I stated that verifying 1 MB worth of transactions makes a miner eligible to earn Bitcoin--not everyone who supports transactions will get paid out.

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

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

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

The fantastic news: No advanced math or computation is involved. You may have heard that miners are solving difficult mathematical problems--that is not true in any way. What they are 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: Because 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 speed," that 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 with your mining rig's hash rate, the site 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--particularly Ethereum miners--buy individual graphics cards (GPUs) as a cheap method to cobble together mining operations. The photograph below is a makeshift, high-tech mining machine. The graphics cards are those rectangular cubes with whirring circles. Note the sandwich twist-ties holding the graphics cards into the metal rod.

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

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Let us say I am thinking about the number 19. If Friend A guesses 21they shed because 21>19. If Friend B guesses 16 and Friend C guesses 12, then they have both theoretically arrived at viable answers, because 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 happen frequently, but at 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 percent --which miner to honour. Normally, it's the miner that has done the work, i.e.

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

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

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