# 3 Easy Facts About Is Bitcoin Mining Profitable Explained

In 2009it had been 50. In 2013, it had been 25, at 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 entire number of bitcoin in circulation will approach a limit of 21 million, making the currency more scarce and valuable over time but also more expensive for miners to produce.

Here's the catch. In order for bitcoin miners to actually earn bitcoin from verifying transactions, two things must occur. First, they need to confirm 1 megabyte (MB) worth of transactions, which can theoretically be as little as 1 transaction but are more often a few thousand, depending on how much data each transaction stores.

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Second, in order to put in a block of transactions to the blockchain, miners should solve a complex computational math problem, also called a"proof of work" What they're doing is trying to think of a 64-digit hexadecimal number, called a"hash," that is less than or equal to the target hash.

## 5 Easy Facts About Is Bitcoin Mining Profitable Explained

In other words, it's a gamble. .

The difficulty level of the most recent block at the time of writing is about 7,184,404,942,701. That is, the chance of a pc producing a hash below the target is 1 in 7,184,404,942,701 less than 1 in seven trillion. That level is corrected every 2016 blocks, or roughly every 2 weeks, with the aim of keeping rates of mining constant.

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The reverse is also true. If computational power has been taken from the network, the problem adjusts downward to make mining simpler. .

"Say I tell three friends 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 just have to be the first person to guess any number that is less than or equal to the number I am thinking of.

"Let's say I am thinking about the number 19. If Friend A guesses 21, they lose because 21>19. If Friend B supposes 16 and Friend C supposes 12, then they've both my website 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 nearer to the goal answer of 19. .

"Now imagine that I pose the'guess what number I'm thinking of' question, however I'm not asking just 3 friends, and I am 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's going to be quite hard to guess the ideal answer." .

If 1 in 7 trillion doesn't sound hard enough as is, here is the grab to the grab. Not only do bitcoin miners have to come up with the right hash, they also have to be the very first to perform it.

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

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

Nowadays, bitcoin mining is so competitive it can only be done profitably using the most up-to-date ASICs. When using desktop computers, GPUs, or elderly models why not try here of ASICs, the cost of energy consumption actually surpasses the revenue generated. Even with the newest unit available, one computer is seldom enough to compete with what what miners call"mining pools" .

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

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Between 1 special info in 7 trillion chances, scaling difficulty levels, and the massive network of consumers verifying transactions, one block of transactions is verified roughly every 10 minutes. However, its important to remember that 10 minutes is a goal, not a guideline.

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