The hashrate is a unit of the computing power of the bitcoin network. A cryptocurrency mining is called the mining. Its essence lies in the fact that the computers have to solve math tasks to get cryptocoins. When a “miner” solves this task, he earns a cash prize. More than one center engaged in the emission of the cryptocurrency, that guarantees some level of the protection. The history of all transactions recorded in the public domain.
A goal of miners is to find the hash of all possible combinations by the brute force method. This hash corresponds to the private key and gives the access to new operations. Thus, the miner gets a minimum of 25 coins at one time when solving the task. At once set of devices is involved in the calculation of the hash at one time. As soon as someone “guesses” a combination, a new unit opens, and it all starts again.
The mathematical principle is as follows. Devices calculate a hash, which should include a part of the previous block, a random number and a total amount of hashes during the last few minutes. Miners change the random number only as long as it will meet all the requirements of the system.
In fact, coin miners are like those who distribute the data on torrent trackers. We all know that they are the backbone of the p2p network. Thanks to them, each user can download the music or a movie. When loading a user increases his rank, which gives him the opportunity next time to continue to download the data. In the case of the bitcoin the “miners” guarantee the normal operation of the monetary system and carry out a huge number of transactions. Only for their labour they receive no the rank, but a very real monetary compensation.
The mining is carried out on the increasingly powerful hardware hence the complexity of the mining rises. If originally a usual home computer was enough for “miner”, and then you could profitably work at top gaming graphics cards. But today this is not enough – you have to use special devices. Their main task is to quickly calculate the hash while consuming the least amount of the energy.