What is a mine pool
After the computing power of the whole network has been improved to a certain extent, the probability of getting rewards is too low, so that some geeks on "bitcoin talk" can develop a method that can combine a small amount of computing power and operate jointly, and use this method to build websites
in this mechanism, no matter how much computing power an indivial miner can use, as long as he participates in mining activities by joining the mine pool, no matter whether he has successfully mined effective data blocks, he can get a small amount of bitcoin reward through his contribution to the mine pool, that is to say, many people cooperate in mining, and the bitcoin reward is shared by many people according to their contribution
as of January 2019, the top five bitcoin pools in global computing power are btc.com, pool, antpool, flush pool, and f2pool. At present, about 70% of global computing power is in the hands of Chinese miners
extended data:
handling charge:
bitcoin miners will charge a small amount of fees for most transactions, the main purpose of which is to prevent people from sending a large number of boring small transactions and wasting network resources. At present, most of the handling charges for each transaction are & T 3647; 0.0001/kb (0.0001btc / KB). In fact, after 0.9.0, the default handling charge will be reced to & 3647; 0.00001/KB(0.00001 btc/KB)
because the amount of data occupied by most transactions is less than 1 kilobyte, generally speaking, the amount of data is less than 3647; 0.00001 (0.00001 BTC / KB) is enough. At the same time, in the future, when the bitcoin block rewards are less, the service charge will become the main source of miners' income, and the service charge of bitcoin will be related to the number of bytes occupied by the transaction
at present, the calculation standard of service charge in bitcoin system is not mandatory, so users can not give any service charge when the transaction is in progress
however, most miners usually give priority to the transaction with higher handling charges when building data blocks, so that they can get higher remuneration when mining is successful. Therefore, the transaction without any handling charges may take a long time to be processed and incorporated into the blockchain
in addition, e to the block capacity limit of 1MB and the recent increase in bitcoin transaction volume, the handling charges have increased significantly, and the waiting time for the transaction to be confirmed has also become much longer
PPLNs: (the purest Group Mining) full name is pay per last n shares, which means "pay income according to the past n shares", which means that once all miners find a block, You will allocate the currency in the block according to the proportion of each person's own shares Share means share)
in PPLNs mode, luck is very important. If the mine pool can find many blocks in a day, then everyone's dividend will be very large. If the mine pool can't find any blocks in a day, then everyone will have no income
PPS: pay per share mode --- this mode is to pay for each share immediately. The expenditure comes from the existing bitcoin funds in the mine pool, so it can be withdrawn immediately without waiting for the block generation or confirmation. In this way, the operation behind the scenes of the pool operators can be avoided. This method reces the risk of miners, but transfers the risk to the pool operator. Operators can charge fees to make up for the possible losses caused by these risks
in order to solve the problem that PPLNs sometimes has a high profit and sometimes has no profit, PPS adopts a new algorithm. PPS estimates the daily available mineral resources of the mine pool according to the proportion of your computing power in the mine pool, and gives you basically fixed income every day
do you feel that this is a stable job? In fact, in order to avoid the risk of loss, the PPS model often charges a high handling charge of 7% - 8%< DGM: Double geometric method. It combines PPLNs and geometric reward type, so that the pool operator can avoid part of the risk. The pool operator will collect part of the excavated currency in a short time, and then return it to the miners with normalized value, such as charge and discharge of electric capacity. If you are lucky, you will get less money for each block and more money for poor luck
175btc: the mining node of 175btc works on a shares chain similar to bitcoin blockchain. Because there is no center, it will not be attacked by DOS. Unlike other existing mine pool technologies, each node's working block includes bitcoin paid to the owner of shares in the early stage and the node's own bitcoin. 99% of the reward (50btc + transaction cost) will be distributed equally to miners, and the other 0.5% will be awarded to those who generate blocks
bitcoin home has a detailed introction.
the mining pool is the necessary infrastructure for the exploitation of P2P cryptography virtual currency such as bitcoin (digital currency). It is generally an open team mining server. Its significance is to improve the stability of bitcoin mining and stabilize the miners' salary. At present, the most powerful mining pools in the world are f2pool, antpool, BW pool, BTCC pool and bitfury. Except for bitfury, the rest are from China
with more and more people participating in mining, the computing power of bitcoin network is rising, and it is difficult for a single device or a small amount of computing power to dig bitcoin again. At this time, the mine pool was born
operation principle of bitcoin mine pool
the ore pool is responsible for information packaging, and the access mine is responsible for competing for bookkeeping rights
e to the collection of the computing power of many miners, the computing power of the mine pool accounts for a large proportion, and the probability of digging bitcoin is higher
for example
suppose 1 million people participate in bitcoin mining, and the whole network has 400p computing power, of which 90% of the miners have less than 1p (1000t) computing power. If a 1t miner is put into operation, it will account for 1.400000 of the whole network's computing power. Theoretically, every 400000 10 minutes can dig a block, that is, only 7.6 years can dig a block, and then get 50 bitcoins at a time
then, if I find another 9 miners with 1t dynamometer and reach an agreement, we will have a total of 10 people, and any one of them will be divided equally according to the proportion of each person's computing power, then we are a whole. With a total of 10t computing power, we can dig a block in 0.76 years on average, Then we have five bitcoins mined in 0.76 years. What if we organize 100 people, 1000 people, 10000 people or even 100000 people
if it is 100000 people, I can dig one block in 100 minutes on average. As a member of the team, my income will tend to be stable
this is the basic principle of the mine pool, that is, everyone forms a team to mine bitcoin, you can refer to the "buy together" in the lottery
of course, the above is only a simple description of the basic principles and properties of the ore pool, and the actual situation will be very complicated
the ore pool is a fully automatic mining platform, that is, the ore machine is connected to the ore pool to provide computing power and obtain profits
the bitcoin reward generated by mining in the mine pool will be distributed according to the proportion of each miner's contribution to computing power
compared with single mining, adding to the ore pool can obtain more stable income
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