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Insteadthey 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. In 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 physical, so why do we call it mining

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

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

Backtracking a bit, lets discuss nodes. A node is a powerful computer that runs the bitcoin software and helps keep bitcoin running by participating in the relay of information. Anyone can run a node, you just download the bitcoin software (free) and 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 some nodes which it knows, who will relay the information to nodes that they know, etc.. This way it ends up getting around the whole network fairly fast. .

Some nodes are mining nodes (usually referred to as miners). These group outstanding transactions into cubes and add them into the blockchain. How do they do this By solving a intricate mathematical mystery that is part of the bitcoin program, and including the answer in the block. The mystery that needs solving is to find a number which, when combined with the data in the cube and passed via a Check Out Your URL hash function, creates a result that's within a certain range.

(For trivia lovers, this number is called a nonce, which is a concatenation of number employed once. In the instance of bitcoin, the nonce is an integer between 0 and 4,294,967,296.)

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How do they find this number By guessing at random. The hash function which makes it impossible to forecast exactly what the output will be. So, miners guess the puzzle number and use the hash function to the combination of the guessed number and the data in the block. The resulting hash must start with a pre-established number of zeroes.

Whats more, there might 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 acquire a resulting hash within the desired range announces its success to the rest of the network. All the other miners immediately stop work on that block and begin trying to figure out the puzzle number for your next one. As a reward for the work, the victorious miner gets some new bitcoin. .

At the time of writing, the payoff is 12.5 bitcoins, which in time of writing is worth nearly $200,000.

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Though its not nearly as cushy a deal as it sounds. There are a lot of mining nodes competing for this reward, and it is a question of fortune and computing power look at these guys (the further guessing calculations you can execute, the luckier you're ).

Also, the expenses of being a mining node are considerable, not only because of the effective hardware needed (if you've got 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 bitcoins awarded as a reward for solving the puzzle will decrease. Its 12.5 now, however, it halves every four years or so (the next one is expected in 2020-21). The worth of bitcoin relative to cost of power and hardware could extend up during the next few decades to partly compensate this reduction, but its not certain. .

The problem of this calculation (the necessary number of zeroes important source at the beginning of the hash string) is adjusted frequently, so that it takes on average about 10 minutes to process a block.

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