Ethereum forever
1. Power consumption: 243w; Calculation force: 22.4m; Price: 1999 yuan; The number of eth g every 24 hours: 0.015; Revenue generated every 24 hours: 24.8 yuan; Expected payback time: 81.66 days
2. Power consumption of the whole machine: 159w; Calculation force: 24.3m; Price: 1599 yuan; Number of eth g every 24 hours: 0.017; Revenue generated every 24 hours: 27.9 yuan; Expected payback time: 57.31 days
3. Power consumption: 171w; Calculation force: 24.4m; Revenue generated every 24 hours: 27.87 yuan; Expected payback time: 71.73 days
4. Power consumption: 97W; Calculation force: 9.2; Price: 999 yuan; Number of eth g every 24 hours: 0.006; Revenue generated every 24 hours: 10.09 yuan; Expected payback time: 99.1 days
extended data
mining machine risk
1. The problem of electricity charge
in order to make the graphics card full load for a long time, the power consumption will be quite high, and the electricity charge will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
2. Hardware expenditure
mining is actually a competition of performance and equipment. Some mining machines are composed of more such graphics card arrays. With dozens or even hundreds of graphics cards, the cost of hardware and other costs is very high, and there is a considerable expenditure in mining
3, currency security
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but the frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
First enter the official website, find the corresponding currency in the recharge withdrawal, fill in the corresponding information, and then submit the withdrawal
Trading rules of bitcoin: 1. Trading time: 7 * 24 hours, all year round
2. Account opening: the account opening process is simple. You only need to register with niubitnet and complete the real name authentication to recharge RMB, and at least recharge RMB 100 to start the transaction
Transaction fee: 0.2% for each transaction T + 0 trading mechanism: the stock is t + 1 trading, that is to say, the stock can be bought on the same day and sold on the next trading day. Bitcoin and other digital assets are t + 0 transactions, which can be bought and sold on the same day. And there is no limit on the number of transactions 5. No limit on the rise and fall: the stock has a limit on the rise and fall, while bitcoin and other digital asset transactions have no limit on the rise and fall, for example, bitcoin rose more than 20% in a single day on May 28
6. Trading unit: the minimum number of BTCs that can be bought / sold is 0.001 (about 17 yuan), and there is no buy / sell limit of at least one hand (100 shares)
There is no time limit for cash withdrawal: cash withdrawal at any time, high liquidity The basic principle of transaction: price first, time first. When the commission price is the same, the Commission order with earlier registration time is better than that with later registration timeThe bitcoin white paper was first published at the end of 2008, when the creators sent it to multiple recipients on an encrypted mailing list. Strangely, its creator pretended to be Satoshi Nakamoto, hiding behind the pseudonym
Another reason for Nakamoto's anonymity can be explained as that the creators of alternative currencies easily put themselves at risk In 1998, Hawaiian resident Bernard von nohaus created a private currency called free dollar. It has been popular for some time, but its coinage was suddenly raided by the FBI and secret service in 2007. After a criminal lawsuit in 2009, the money was confiscated and Bernard von norhaus was convicted of "making private coins that compete with the official currency of the United States." In addition, in 2007, a digital currency called e-gold was accused of being illegal because it did not collect enough customer information. Its owner was sentenced to house arrest and the company was shut down. The arrest of entrepreneurs in alternative currencies by government agencies may have been a factor in China's decision to remain anonymouseveryone can use bitcoin. This means it can be used to pay for legal and illegal services, as well as legal bids however, it has always been a popular payment method in the black net market. Ross Ulbricht, the notorious dark Internet market maker and operator, was jailed for facilitating the trading of drugs and other contraband
Ross Ulbricht appealed to the US Supreme Court in December 2017, but is still in prison. If Nakamoto reveals his true identity, it can be inferred that he may face a similar fate
who would he be
in 2016, Craig Wright, an Australian programmer, claimed to be Chinese. He provided some evidence, but later found that it was not conclusive because it could be obtained publicly from books. He was also accused of falsifying announcements and blog posts to show his real Chinese version. For example, vitalik buterin, founder of Ethereum, recently called Craig white a liar
The other is Hal Finney. He is a famous cryptopunk and Cryptologist. He was also the first person to receive bitcoin from Nakamoto in 2009. He was also the first to download a bitcoin client. Before his death in 2014, however, Hal fini refuted the claim that he was Chinese Some people think that Nick Saab, a famous Cryptologist, may be Nakamoto. Before the launch of bitcoin, he designed the architecture of distributed digital currency, which he called bitcoin. Although the architecture has never been moved, it is similar to the design of bitcoin. This led to widespread speculation. But he repeatedly denied italthough the real identity of Nakamoto may never be disclosed, it is important that the operation of the technology will not be affected
for example, the existing / etc / sysconfig / network scripts / eth0
can be roughly as follows:
device = eth0
onboot = yes
bootproto = static
iPad Dr = 192.168.1.20
netmask = 255.255.255.0
gateway = 192.168.1.255
an existing configuration file and change it to eth1 iPad If Dr is changed to 192.168.1.21, an eth1 with IP 192.168.1.21 will appear
other Linux distributions should be similar
because the network wide computing power required by this kind of token is not high, the probability of hash collision of the computing power of personal computer can find out the answer in a short time, so as to obtain block rewards. However, this kind of token generally has little value or high risk, so it is not of great significance< br />
extended data:
mining risk:
1. Electricity charge problem:
if the graphics card "mining" needs to be fully loaded for a long time, the power consumption will be quite high, and the electricity charge will be higher and higher. Many professional mines at home and abroad are operated in areas with extremely low electricity charges, such as hydropower stations, while more users can only mine at home or in ordinary mines, so the electricity charges are not cheap. Even in a certain residential area in Yunnan, there was a case of crazy mining, which led to a large area trip of the residential area, and the transformer was burned
2. Hardware expenditure:
mining is actually a competition of performance and equipment. Some mining machines are composed of more such graphics card arrays. With dozens or even hundreds of graphics cards, the cost of hardware and other costs is very high, and there is a considerable expenditure in mining
in addition to the display card burning machines, some ASIC (application specific integrated circuit) professional mining machines are also on the battlefield. ASIC is specially designed for hash operation, and the computing power is also quite strong. Moreover, because their power consumption is far lower than that of the display card, they are easier to form scale, and the electricity cost is also lower. It is very difficult to compete with these mining machines, This kind of machine costs more
3. Currency security:
the withdrawal of bitcoin requires hundreds of keys, and most people will record this long string of numbers on the computer, but the frequent problems such as hard disk damage will make the key permanently lost, which also leads to the loss of bitcoin
4. System risk:
system risk is very common in bitcoin, and the most common one is bifurcation. Bifurcation will lead to a drop in currency price and a sharp drop in mining income
however, many cases show that the forking will benefit the miners, and the forked competitive currency also needs the miners' computing power to complete the minting and trading process. In order to win more miners, the competitive currency will provide more block rewards and handling charges to attract miners. Risk makes miners.