Why mining
In short, mining is the use of chips for a random number related calculation, get the answer in exchange for a virtual currency. Virtual currency can be exchanged for the currency of each country through some way. The stronger the computing power, the faster the chip can find this random answer. Theoretically, the more virtual coins can be proced per unit time. Because it's about random numbers, you can only get rewards if you happen to find the answer
In his paper, Nakamoto stated:"in the absence of central authority, it not only encourages miners to support bitcoin network, but also enables bitcoin's currency circulation system to have the initial source of money injection."
Nakamoto compares the generation of bitcoin by consuming CPU power and time to the consumption of resources by gold mines to inject gold into the economy. Bitcoin mining and node software mainly initiates zero knowledge proof and verification transactions through peer-to-peer network, digital signature and interactive proof system
each network node concts broadcast transactions to the network. After these broadcast transactions are verified by miners (computers on the network), miners can use their own work proof results to express their confirmation. The confirmed transactions will be packaged into data blocks, and the data blocks will form a continuous data block chain
Nakamoto himself designed the first version of bitcoin mining program, which was later developed into the first generation of widely used mining software bitcoin, which was popular from 2009 to mid-2010
each bitcoin node will collect all the unconfirmed transactions and gather them into a data block. The miner node will add a random adjustment number and calculate the SHA-256 hash value of the previous data block. The mining node tries again and again until it finds the random adjustment number so that the hash value is lower than a specific target
extended data
at the earliest, bitcoin miners were mining through Intel or AMD CPU procts. But because mining is a computing intensive application, and with the continuous improvement of mining number and equipment performance, the difficulty graally increases, now using CPU mining has no profit or even loss
as of 2012, since the first quarter of 2013, miners graally began to use GPU or FPGA and other mining equipment [5]. At the same time, a large number of ASIC devices were launched in mid 2013
since July 2013, the computing power of the whole network has shown a straight-line rise e to the large number of ASIC equipment put into operation. Based on the average computing power in July 2013, all CPU mining equipment has been unable to generate positive revenue, and FPGA equipment is close to no revenue
according to the estimation of average computing power in September 2013, the existing small ASIC mining equipment developed for indivials will also be close to no positive revenue in the next 1-2 months. A large amount of computing power is monopolized by cluster ASIC mining equipment with 5 th ash / s or more. Because of no profit, indivial mining is almost squeezed out of mining groups. Some bitcoin miners have raised funds to build machine rooms and install a large number of mining equipment in places where low-cost electricity can be obtained
in order to save the cost of mining, some bitcoin miners make mining programs into malicious programs to infect other people's computers on the network to mine for themselves
as tens of thousands of miners compete for the right to pack, the probability of a single miner seizing the right to pack is very small, and the output is very unstable. It is possible to grab the right once an hour or not once a year
in order to stabilize the mining output, miners often choose to join the mining pool. The mining pool integrates the computing power of a large number of miners and occupies a certain share in the total computing power of the whole network, so as to obtain a more stable mining output. After charging 2% ~ 4% of the pool handling charge, the output is distributed to the miners according to the miners' computing power
it's just like that it's hard for one person to win the lottery, so the mine pool organizes many people to buy the lottery together, and after winning the lottery, they are distributed to everyone according to the amount of contribution.
there are many stream processors in GPU of graphics card. For example, the old HD5770 has 800 stream processors, which is equivalent to 800 computing cores. In recent years, the mainstream high-end graphics card has more built-in stream processors and more powerful computing performance. Using GPU for mining operation, the stream processor is used for parallel operation, and the mining program also optimizes the GPU parallel operation, so the operation efficiency is particularly high, and the efficiency of bitcoin mining has been greatly improved
the number of CPU cores is relatively small. At present, the number of the most powerful mainstream desktop processor cores is no more than 10 or 20 (many are logic cores virtualized by hyper threading technology), and the parallel computing power is far less than that of GPU.
unlike all currencies, bitcoin does not rely on a specific currency institution to issue. It is generated by a large number of calculations based on a specific algorithm. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions, and uses cryptography design to ensure the security of all aspects of currency circulation. The decentralized nature and algorithm of P2P can ensure that it is impossible to artificially manipulate the value of bitcoin through mass proction. The design based on cryptography can make bitcoin only be transferred or paid by the real owner. This also ensures the anonymity of money ownership and circulation transactions. The biggest difference between bitcoin and other virtual currencies is that the total amount of bitcoin is very limited and it has a strong scarcity
warm tips:
1. The above information is for reference only, without any suggestions
2. According to the notice on preventing the financing risk of token issuance, there is no approved digital currency trading platform in China. According to the regulation of digital currency in China, investors have the freedom to participate in digital currency transactions at their own risk
response time: February 2, 2021. Please refer to the official website of Ping An Bank for the latest business changes
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scene name monster grade mineral name / grade mineral name / grade mining skill grade
Wuliang 1-10 copper mine / 1 -- 0
Jiange 1-10 copper mine / 1 -- 0
Dunhuang 9-16 copper mine / 1 -- 0
Jinghu 9-16 copper mine / 1 -- 0
Songshan 15-21 copper mine / 1 -- 1
Taihu 15-21 copper mine / 1 -- 1
Xihu 20-26 copper mine / 1 iron mine / 21
Erhai Lake 25-31 iron ore / 2 silver ore / 3 2
Yannan 30-36 silver ore / 3 cold iron ore / 4 3
Longquan 35-41 cold iron ore / 4 gold ore / 5 4
Cangshan 40-46 gold ore / 5 basaltic iron ore / 6 5
Yanbei 45-51 basaltic iron ore / 6 crystal ore / 7 6
Wuyi 50-56 crystal ore / 7 jadeite ore / 8 7
Shilin 55-61 jadeite ore / 8 Zhenwu ore / 9
Caozhou 60-66 Zhenwu ore / 9 Longxue ore / 10 9
Meiling 65- 71 Longxue mine / 10 10
herb distribution
scene name monster level herb name / level herb name / level herb name / level herb picking skill level
Wuliang 1-10 white Ying / 1 Pollen Typhae / 1 0
Jiange 1-10 white Ying / 1 Pollen Typhae / 1 0
Dunhuang 9-16 white Ying / 1 Pollen Typhae / 1 0
Jinghu 9-16 white Ying / 1 Pollen Typhae / 1 0
Songshan 15-21 white Ying / 1 Puhuang / 11
Taihu 15-21 Baiying / 1 Puhuang / 11
Xihu 20-26 Chuanbei / 2 Yuanhu / 22
Erhai 25-31 loquat / 3 licorice / 3 honeysuckle / 3 3
Yannan 30-36 Scutellaria / 4 wolfberry / 4 Chenxiang / 4
Longquan 35-41 Eucommia ulmoides / 5 Atractylodes lancea / 5 Fuling / 5
Cangshan 40-46 Fangfeng / 6 Elsholtzia / 6 Huanglian / 6
Yanbei 45-51 Danggui / 7 Guixin / 7 Xiangfu / 7 Wuyi 50-56 Huoxiang / 8 huishencao / 8 Shouwu / 8 8
Shilin 55-61 Cordyceps sinensis / 9 Solanum nigrum seed / 9 9
grassland 60-66 Xiangbei / 10 ginseng / 10 10
Meiling 65-71 Ganoderma lucim / 11 xunccao / 11
Yuxi 70-76 Lianzi / 12 kumuchun / 12
Liaoxi 75-81 Lianzi / 12 kumuchun / 12
Nanhai 80-85 Lianzi / 12 kumuchun / 12
Nanzhao 84-89 Lianzi / 12 drywood spring / 12
Chang 88-93 Lianzi / 12 drywood spring / 12
Qiongzhou 92-97 Lianzi / 12 drywood spring / 12
miaojiang 96-101 Lianzi / 12 drywood spring / 12
Huanglong 100-105 Lianzi / 12 drywood spring / 12
mining is a proof mechanism.