# The Ultimate Guide To Is Bitcoin Mining Profitable

In 2009, it had been 50. In 2013, it was 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 rate of halving, the entire 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 make.

Here is the catch. In order for bitcoin miners to actually earn bitcoin from verifying transactions, two things must happen. First, they must confirm 1 megabyte (MB) value of transactions, which can technically be as little as 1 transaction but are far more often a few thousand, depending on how much data each transaction shops.

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

In other words, it is a bet. .

The difficulty level of the most recent block at the time of writing is all about 7,184,404,942,701. In other words, the chance of a computer producing a hash beneath 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 about every 2 weeks, with the goal of keeping rates of mining constant.

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The reverse is also true. If computational power is taken off of this network, the difficulty adjusts downward to make mining simpler. .

"Say I tell three friends 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 specific number, they simply must be the first person to guess any number that is less than or equal to this number I am thinking of.

"Let us say I am thinking of 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 technically came at viable answers, since 16<19 and 12<19. There's no'extra credit' for Friend B, even though B's answer was closer to the target answer of 19. .

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

If 1 in 7 trillion doesn't sound difficult enough as is, here is the catch to the catch. Not only do bitcoin miners have to come up with the ideal hash, they also must be the 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. Just a decade ago, bitcoin miners could be performed competitively on normal desktop computers. As time passes, however, miners realized that graphics cards commonly used for video games were more effective at mining than desktops and graphics processing units (GPU) came to dominate the match.

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

Today, bitcoin mining is so aggressive that it can only be done profitably with all the most up-to-date ASICs. When using desktop computers, GPUs, or older versions of ASICs, the cost of energy consumption actually surpasses the revenue generated. Even with the newest unit at your disposal, one computer is rarely enough to compete with exactly what miners call"mining pools." .

An mining pool is a group of miners that combine their computing ability and split the mined bitcoin between participants. A disproportionately large 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 the huge network of consumers verifying transactions, one block of transactions is verified roughly every 10 minutes. But its important to remember that 10 minutes is a goal, not a guideline.

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The bitcoin network can process pop over here about seven transactions per second, with transactions being logged in the blockchain each 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 that can be processed in 10 minutes.