Bitcoin Mining Code for Dummies

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Let's say you had one legit $20 and one really good photocopy of the same $20. If someone were to attempt to spend both the true bill and the fake one, someone who took the trouble of looking at both of the bills' serial numbers would see that they were the same number, and consequently one of them had to be fictitious.

That isn't a great analogy--we will explain in more detail below. .

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

Note that I stated that verifying 1 MB value 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 (although this is not at all common) or several thousand. It depends on how much data the transactions take up.

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

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

The good news: No advanced math or computation is involved. You may have discovered that miners are solving challenging mathematical problems--that's not true at all. What they're 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 good deal of computing power in order to get there . To mine , you need to have a high"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 website Cryptocompare offers a helpful calculator.

Either a GPU view it now (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--buy individual graphics cards (GPUs) as a low-cost way to cobble together mining operations.  The photograph below is a makeshift, home-made mining machine.  The cards are such 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 of 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 just have to be the first person to guess any number that is less than or equal to this number I am thinking of.

 

 

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Let us say I'm thinking about the number 19. If Friend A guesses 21they shed because 21>19. If Friend B supposes 16 and Friend C guesses 12, then they have both technically came at viable answers, since find this 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 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 decide by a simple majority--51 percent --that miner to honour. Typically, it's the miner that has done the most work, i.e.

 

 

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

 

 

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Now imagine I pose the"figure what number I'm thinking of" question, however I'm not asking just three friends, and I'm not thinking of a number between 1 and 100. Rather, 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 ideal answer.

 

 

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

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

As you knowwe use the"decimal" system, which means it is base 10. This in turn means that each and every digit has 10 possibilities, 0-9.

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