# The Best Guide To How Bitcoins Are Made

Let us 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 either of those invoices' consecutive numbers would observe that they had been the same number, and consequently one of them needed to be false.

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

Once a miner has verified 1 MB (megabyte) worth of Bitcoin transactions, they are eligible to win the 12.5 BTC. The 1 MB limit was established by Satoshi Nakamoto, and can be 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 worth of transactions makes a miner qualified to earn Bitcoin--not everyone who supports transactions will get paid off.

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

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

2) You have to be the first miner to arrive at the right answer to some numeric issue. This process is also known as a proof of work.

The good news: No advanced math or computation is involved. You may have discovered that miners are solving difficult mathematical problems--that is not true at all. What they're doing is trying to be the first miner to think of 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's guesswork, you need a lot of computing power in order to get there . To mine , you need to get a higher"hash speed," which is quantified in terms of megahashes per second (MH/s), gigahashes per second (GH/s), and terahashes per see second (TH/s).

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

Either way 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 see it here a cheap method to cobble together mining operations.  The photograph 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 into the metal rod.

Case in point I tell three friends that I'm thinking about a number between 1 and 100, and I write that number on a piece 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 figure any number that is less than or equal to the number I am thinking of.

## A Biased View of Bitcoin Mining Code

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

In Bitcoin terms, 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. Normally, it is the miner that has done the work, i.e.

The losing block then becomes an"orphan block." .

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