The 6-Minute Rule for Free Bitcoin Mining Game
Instead, they went with Solution 2. The resulting currency, called bitcoin cash, increased the blocksize to 8 Mb in order to accelerate the verification procedure to allow a performance of around two million transactions per day. At 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 out of the ground. However, 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 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 validated transactions and including them in the blockchain.
Backtracking a bit, lets discuss nodes. A node is a powerful computer that runs the bitcoin applications and assists keep bitcoin running by participating in the relay of information. Anyone can run a node, you just download the bitcoin applications (free) and leave a certain port open (the drawback is the fact that it consumes energy and storage space the network at time of writing takes 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 whole network pretty quickly. .
Some nodes are mining nodes (usually known as miners). These group outstanding transactions into cubes and add them into the blockchain. How can they do this By solving a intricate mathematical puzzle that is part of this 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 block and passed through a hash function, creates a result that is within a certain range.
How do they find this number By guessing at random. The hash function makes it impossible to predict what the output will be. So, miners suppose the puzzle number and apply the hash function to the combination of that guessed number and the data in the block. The resulting hash has to begin with a pre-established number of zeroes.
Whats more, there might be several nonces that produce the desired result, or there might be none (in the event the miners keep trying, but with a different block configuration). .
The first miner to get a resulting hash within the desirable range announces its success to the rest of the network. All the other miners immediately stop work on that block and begin trying to find out the mystery number for the next one. As a reward for the work, the victorious miner gets some new bitcoin. .
In the time of writing, the payoff is 12.5 bitcoins, which in time of writing is worth almost $200,000.
Also, the costs of being a mining node are considerable, not only because of the powerful hardware needed (in case you've got a faster processor than your competitors, you have a better chance of finding the correct number before they do), but also due to the large amounts of power that running these chips consumes. .
And, the number of all bitcoins awarded as a reward for solving the puzzle will decrease. Its 12.5 now, but it pits each four years or so (the next one is expected in 2020-21). The value of bitcoin relative to cost of electricity and hardware could extend up over the next few years to partly compensate this 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 requires on average about 10 minutes to process a block.
Why 10 minutes That is the amount of time the bitcoin programmers think is necessary to get a steady and diminishing flow of new coins until the highest number of 21 million has been reached (expected some time in 2140).