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Instead, they went with Solution 2. The resulting currency, known as bitcoin cash, increased the blocksize to 8 Mb in order to accelerate the verification procedure to permit a performance of around 2 million transactions every day. In the time of writing, Bitcoin Cash is valued at \$545.00 to Bitcoins \$6,328.11.

When you hear about bitcoin mining, you envisage coins being dug from the ground. However, bitcoin isnt physical, so why do we call it mining

Because its similar to gold mining in the bitcoins exist in the protocols design (like the gold is underground), but they havent been introduced into the mild yet (just as the gold hasnt yet been awakened ). The bitcoin protocol stipulates that 21 million bitcoins will exist at some point.

They get to do so as a reward for creating blocks of validated transactions and including them in the blockchain.

Backtracking a bit, lets talk about nodes. A node is a powerful computer which runs the bitcoin applications and helps to keep bitcoin running by participating in the relay of information. Anyone can run a node, you just download the bitcoin applications (free) and also leave a certain port open (the downside is that it consumes energy and storage space the network at time of writing carries up about 145GB).

One node will send information to a few nodes which it knows, who will relay the information to nodes they know, etc.. This way it ends up getting around the entire network pretty quickly. .

Some nodes are mining nodes (usually referred to as miners). These set outstanding transactions into cubes and add them to the blockchain. How do they do so by solving a complex mathematical mystery that's a portion of the bitcoin program, and including the answer in the block. The mystery that needs solving is to find a number that, when combined with all the information in the cube and passed via a hash function, creates a result that is within a certain range.

(For fiction fans, this number is called a nonce, which can be a concatenation of number employed once. In the case of bitcoin, the nonce is an integer between 0 and 4,294,967,296.)

How do they find this number By guessing at random. The hash function which makes it impossible to predict what the outcome will be. So, miners guess this post the puzzle number and apply the hash function to the combination of that guessed number and also the data in the cube. The resulting hash must start with a pre-established number of zeroes.

Whats more, there may be several nonces that produce the desired result, or there may be none (in the event the miners keep trying, but using a different block configuration). .

The first miner to get a resulting hash within the desirable range announces its victory to the rest of the network. All the other miners immediately stop work on that block and start trying to figure out the puzzle number for your next one. As a reward for its own work, the victorious miner has some new bitcoin. .

In the time of writing, the reward is 12.5 bitcoins, which in time of writing will be worth nearly \$200,000.

Though its not nearly as cushy a deal as it sounds. There are a lot of mining nodes competing for this benefit, and it's a question of fortune and computing power (the further guessing calculations you can perform, the luckier you're ).

Also, the costs of being a mining node are considerable, not only due to the effective hardware needed (if you've got a faster processor than your opponents, you've got a better chance of finding the correct number before they do), but also because of the large amounts of electricity that running these chips consumes. .

And, the number of bitcoins given as click for more info a reward for solving the puzzle will decrease. Its 12.5 now, however, it pits each four years or so (the next one is anticipated in 2020-21). The worth of bitcoin relative to price of power and hardware could go up over the next few decades to partially compensate this reduction, but its not certain. .

The difficulty of this calculation (the required number of zeroes at the beginning of the hash string) is corrected frequently, so it requires on average about 10 minutes to you could try these out process a block.

Why 10 minutes that's the amount of time the bitcoin developers think is necessary for a continuous and diminishing flow of new coins until the highest number of 21 million has been attained (anticipated some time in 2140).