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Instead, they went with Solution 2. The resulting currency, called bitcoin money, increased the blocksize to 8 Mb in order to accelerate the verification procedure to permit a performance of around two million transactions every day. At the time of writing, Bitcoin Cash is valued at $545.00 to Bitcoins $6,328.11.
When you hear bitcoin mining, you envisage coins being dug from the ground. But bitcoin isnt bodily, 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 (like the gold hasnt yet been awakened ). The bitcoin protocol stipulates that 21 million bitcoins will exist at some point.
They get to perform this as a reward for creating blocks of confirmed transactions and including them in the blockchain.
Backtracking a little, lets talk about nodes. A node is a powerful computer which runs the bitcoin applications and helps keep bitcoin running by participating in the relay of information. Anyone can run a node, you simply download the bitcoin applications (totally free ) and leave a certain port open (the downside is that it consumes energy and storage space the network at time of writing takes up about 145GB).
One node will send information to some nodes which it knows, who will relay the information to nodes they know, etc.. That way it ends up getting around the whole network fairly fast. .
Some nodes are mining nodes (usually referred to as miners). These set outstanding transactions into blocks and add them to the blockchain. How can they do so by solving a complex mathematical puzzle that is part of this bitcoin program, and including the answer in the block. The puzzle that needs solving is to find a number which, when combined with all the data in the block and passed via a hash function, creates a result that's within a certain range.
How can they find this number By guessing at random. The hash function which makes it impossible to predict exactly what the outcome will be. So, miners guess the mystery number and apply the hash function to the combination of that guessed number and also the data in the cube. The resulting hash must begin with a pre-established number of zeroes.
Whats more, there may be several nonces that produce the intended result, or there may be none (in the event the miners keep trying, but using a different block configuration). .
The first miner to acquire a resulting hash within the desired range announces its victory to the rest of the network. The rest of the miners immediately stop work on that block and start trying to find out the puzzle number for your next one. As a reward for its own work, the victorious miner gets some new bitcoin. .
In the time of writing, the reward is 12.5 bitcoins, which at time of writing will be worth almost $200,000.
Also, the costs of being a mining node are considerable, not only due to the powerful hardware needed (if you have a faster processor than your competitors, you've got a better chance of finding the correct number before they perform ), but also because of the large amounts of power that running these processors consumes. .
And, the number of all bitcoins awarded as 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 value of bitcoin relative to cost of power and hardware could go up during the next few decades to partly compensate this that site reduction, but its not certain. .
The difficulty of this calculation (the necessary number of zeroes at the beginning of the hash string) is adjusted frequently, so that it takes on average approximately 10 minutes to process a block.
Why 10 minutes That is the amount of time the bitcoin developers think is necessary to get a steady and diminishing flow of new coins until the highest number of 21 million is attained (expected some time in 2140).