# The Only Guide for Is Bitcoin Mining Profitable

In 2009it was 50. In 2013, it had been 25, in the time of writing it is 12.5, and sometime in the middle of 2020 it will halve to 6.25. .

At this speed of halving, the total number of bitcoin in circulation will approach a limit of 21 million, making the currency more scarce and precious over time but also more expensive for miners to produce.

Here's the catch. In order to get bitcoin miners to actually earn bitcoin from verifying transactions, two things must occur. To begin with, they need to confirm 1 megabyte (MB) value of transactions, which can technically be as small as 1 transaction but are more often several thousand, depending on how much information each transaction stores.

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Second, in order to add a block of transactions to the blockchain, miners must fix a complex computational math problem, also called a"proof of work." What they're doing is trying to come up with a 64-digit hexadecimal number, called a"hash," that is less than or equivalent to the target hash.

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In other words, it's a gamble. .

The difficulty level of the most recent block at the time of writing is all about 7,184,404,942,701. That is, the chance of a pc producing a hash below the target is just 1 in 7,184,404,942,701 less than 1 in seven trillion. That level is adjusted every 2016 cubes, or roughly every two weeks, with the goal of keeping rates of mining constant.

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The reverse is also correct. If computational power is taken from this network, the problem adjusts downward to earn mining simpler. .

"Say I 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 exact number, they simply must be the first person to figure any number that is less than or equal to this number I'm thinking of.

"Let us say I'm thinking of the number 19. If Friend A guesses 21they shed because 21>19. If Friend B guesses 16 and Friend C supposes 12, then they've both theoretically arrived at viable 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. .

"Now imagine that I pose the'guess what number I'm thinking of' question, but I am not asking just 3 friends, and I am 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 is going to be extremely difficult to guess the right answer." .

If 1 in 7 trillion doesn't sound hard enough as is, here's the catch to the grab. Not only do bitcoin miners need to think of the ideal hash, but they also must be click here to find out more the very first to do it.

Because bitcoin mining is essentially guesswork, arriving at the right answer before another miner has everything to do with how fast your computer can produce hashes. Only a decade ago, bitcoin miners could be performed competitively on normal desktops. Over time, however, miners realized that graphics cards commonly utilized for video games were more capable of mining than desktops and graphics processing units (GPU) came to dominate the game.

These can run from \$500 to the tens of thousands. .

Today, bitcoin mining is so aggressive it can only be done profitably with the latest up-to-date ASICs. When using desktop computers, GPUs, or elderly models of ASICs, the cost of energy consumption actually exceeds the revenue generated. Even with the newest unit at your disposal, one computer is seldom enough to compete with what what miners call"mining pools" .

An mining pool is a group of miners that combine their computing power and split the mined bitcoin between participants. A disproportionately high number of cubes are mined by pools rather than by individual miners. In July 2017, mining pools and companies represented roughly 80% to 90% of bitcoin computing power. .

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Between 1 in 7 trillion odds, scaling difficulty levels, and also the huge network of users verifying transactions, one block of transactions is verified roughly every 10 minutes. However, its important to keep in mind that 10 minutes is a goal, not a rule.

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The bitcoin network can process about seven transactions per second, with transactions being logged in the blockchain every 10 minutes. As the network of bitcoin consumers continues to site web grow, but the number of transactions made in 10 minutes will eventually exceed the number of transactions that can be processed in 10 minutes.