Bitcoin and supercomputer
Publish: 2021-05-26 01:41:40
1. I tell you, the computing power of home PC is too low. According to the difficulty of more than 900 million computing and programming, the computing power of a home PC is generally between 100 m and 600 m. if you dig, the money you earn in a month is not even one tenth of the electricity bill, so you need a mining machine. Now on the market, the machine specially optimized for the calculation algorithm of the generation of bitcoin is the miner. A miner can process 600ghash data operations per second. Without interruption, it can generate a bitcoin in about 10 days, which requires high computer configuration
it's not impossible that you can dig 100 in a day. To be exact, it doesn't take a day. It only takes less than a few seconds to win. The premise is that you can win "Tianhe No.2" which ranks first in the world.
it's not impossible that you can dig 100 in a day. To be exact, it doesn't take a day. It only takes less than a few seconds to win. The premise is that you can win "Tianhe No.2" which ranks first in the world.
2. It refers to the online wallet. Users who use bitcoin hot wallet generally do not hold the private key of bitcoin wallet directly. Even if they hold the private key, it is also the private key stored on the network. Therefore, it has the risk of being broken and stolen by hackers. But correspondingly, because bitcoin hot wallet is always connected to the network, it can provide users with bitcoin access service at a faster speed.
3. Abstract: in a small laboratory in a secluded village 50 miles north of New York City, intricate pipelines and electronic equipment are wound under the ceiling. This seemingly haphazard pile of devices is a computer. It is different from any computer in the world, but it is a milestone device in the history --- quantum computer
on May 3, 2017, a big news in science and technology circles: the world's first optical quantum computer surpassing the early classical computer was born. This "world's first" is a genuine "made in China" and is the result of a breakthrough made by Professor Pan Jianwei and his colleagues of the University of science and technology of China and Professor Wang Haohua of Zhejiang University
if the speed of traditional computer is bicycle, the speed of quantum computer is just like airplane. In the past few months, IBM and Intel have announced that they have built 50 and 49 qubit quantum computers, respectively. Some experts point out that within ten years, the computing power of quantum computer may catch up with and surpass the current supercomputer
at the American Physics Annual Meeting held in Los Angeles on March 5, 2018, Julian Kelly, a research scientist at Google quantum AI laboratory, reported that he was leading the Google team to test a 72 qubit universal quantum computer. However, this is only 72 qubits. At this rate of development, the magic power of quantum computer will soon be terrifying
then, why do we say that quantum computers can easily crack bitcoin? What's the matter
it takes 600000 years to crack an RSA cryptosystem, but it takes less than three hours to use a quantum computer with considerable storage function! In other words, with the leap from electronic computer to quantum computer, the computing power and the ability to process big data of the whole mankind will be improved for tens of thousands or even hundreds of millions of times. In front of the quantum computer, the traditional electronic computer we used to be proud of is equivalent to the previous abacus, which is bulky and old
although the bitcoin protocol uses asymmetric cryptocurrency, the corresponding public key is used to verify the transactions signed by the private key to ensure that bitcoin can only be used by legitimate owners. It is not feasible to force the private key to be consistent with the public key by using the currently available computer, but quantum computer can solve the problem of asymmetric cryptocurrency
in addition, the rule of bitcoin is that the more processed block will be added to the blockchain, and the other block will be voided. For example, it's like 51 people in an account book say that you have saved 100 yuan in the bank, while 49 people say that you have saved 50 yuan. In this case, the minority of blockchain algorithm is subordinate to the majority, and the bank thinks that you have saved 100 yuan is true, and that you have saved 50 yuan is false. So once a miner has 51% of the computing power, other subsequent miners will not be able to continue to get bitcoin
Andersen Cheng, co-founder of a network security company in the UK, says bitcoin will come to an end the day quantum computers come into use. What's your opinion?
on May 3, 2017, a big news in science and technology circles: the world's first optical quantum computer surpassing the early classical computer was born. This "world's first" is a genuine "made in China" and is the result of a breakthrough made by Professor Pan Jianwei and his colleagues of the University of science and technology of China and Professor Wang Haohua of Zhejiang University
if the speed of traditional computer is bicycle, the speed of quantum computer is just like airplane. In the past few months, IBM and Intel have announced that they have built 50 and 49 qubit quantum computers, respectively. Some experts point out that within ten years, the computing power of quantum computer may catch up with and surpass the current supercomputer
at the American Physics Annual Meeting held in Los Angeles on March 5, 2018, Julian Kelly, a research scientist at Google quantum AI laboratory, reported that he was leading the Google team to test a 72 qubit universal quantum computer. However, this is only 72 qubits. At this rate of development, the magic power of quantum computer will soon be terrifying
then, why do we say that quantum computers can easily crack bitcoin? What's the matter
it takes 600000 years to crack an RSA cryptosystem, but it takes less than three hours to use a quantum computer with considerable storage function! In other words, with the leap from electronic computer to quantum computer, the computing power and the ability to process big data of the whole mankind will be improved for tens of thousands or even hundreds of millions of times. In front of the quantum computer, the traditional electronic computer we used to be proud of is equivalent to the previous abacus, which is bulky and old
although the bitcoin protocol uses asymmetric cryptocurrency, the corresponding public key is used to verify the transactions signed by the private key to ensure that bitcoin can only be used by legitimate owners. It is not feasible to force the private key to be consistent with the public key by using the currently available computer, but quantum computer can solve the problem of asymmetric cryptocurrency
in addition, the rule of bitcoin is that the more processed block will be added to the blockchain, and the other block will be voided. For example, it's like 51 people in an account book say that you have saved 100 yuan in the bank, while 49 people say that you have saved 50 yuan. In this case, the minority of blockchain algorithm is subordinate to the majority, and the bank thinks that you have saved 100 yuan is true, and that you have saved 50 yuan is false. So once a miner has 51% of the computing power, other subsequent miners will not be able to continue to get bitcoin
Andersen Cheng, co-founder of a network security company in the UK, says bitcoin will come to an end the day quantum computers come into use. What's your opinion?
4. Hehe, the idea is naive. The problem is very simple. At present, the network speed of bitcoin is 1861 petaflops. Tianhe two is 33 PETA flops
less than 2%<
the output of the whole network is about 150 per hour, and Tianhe can dig about 2 BTCs per hour, which is about $200
its power consumption is 24kw. Fifty cents per hour of electricity is 12000 yuan, or two thousand dollars
spend $2000 to generate $200. That's the effect The actual depreciation cost is probably higher than the electricity charge)
less than 2%<
the output of the whole network is about 150 per hour, and Tianhe can dig about 2 BTCs per hour, which is about $200
its power consumption is 24kw. Fifty cents per hour of electricity is 12000 yuan, or two thousand dollars
spend $2000 to generate $200. That's the effect The actual depreciation cost is probably higher than the electricity charge)
5. The overall principle is that the stronger the computing power is, the larger the proportion of bitcoin can be allocated. However, the speed of bitcoin generation is graally decreasing
technically speaking, it is completely feasible, because the algorithm is not complex and can be transplanted to the mainframe with a little modification. If it can be optimized for parallel computing, it will be more efficient
but in terms of cost, supercomputers are not cheap to use. Only a medium-sized and large-scale computer consumes tens of thousands of power every day, not counting the loss of the whole machine. As for supercomputers like Tianhe-1 and tianhe-2, the research and development costs and rental costs are still relatively high. Whether the excavated bitcoin can recover the cost still needs to be carefully considered.
technically speaking, it is completely feasible, because the algorithm is not complex and can be transplanted to the mainframe with a little modification. If it can be optimized for parallel computing, it will be more efficient
but in terms of cost, supercomputers are not cheap to use. Only a medium-sized and large-scale computer consumes tens of thousands of power every day, not counting the loss of the whole machine. As for supercomputers like Tianhe-1 and tianhe-2, the research and development costs and rental costs are still relatively high. Whether the excavated bitcoin can recover the cost still needs to be carefully considered.
6. No, bitcoin is generated by P2P nodes. The reason why it is calculated is that it uses cryptography instead of being generated casually. Because P2P is limited, so the number will not be very large, the operation is not created, but found.
7. January 13) is a milestone for cryptocurrency. 16.8 million bitcoins, or 80% of the total bitcoin supply, have now been mined. This means that the mining of bitcoin miners has become more and more difficult. What's more, governments of many countries have taken the opportunity to strengthen the crackdown on bitcoin "mines"
the total number of bitcoins is 21 million. As of January 13, 2018, 16.8 million bitcoins have been mined in the world, with 20% left, that is, 4.2 million bitcoins are waiting for everyone to excavate, facing the situation of "more than enough"
in November 2012, the new issue speed of bitcoin was reced to 25 bitcoins per block
bitcoin mining relies on the use of computer chips to calculate specific encryption algorithms. With the increasing scarcity of remaining bitcoin resources, the mining cost of a single bitcoin is also increasing. As long as the function of supercomputer is completely based on a specific encryption mathematical algorithm. Changes in bitcoin are soon over. And the time is very short.
the total number of bitcoins is 21 million. As of January 13, 2018, 16.8 million bitcoins have been mined in the world, with 20% left, that is, 4.2 million bitcoins are waiting for everyone to excavate, facing the situation of "more than enough"
in November 2012, the new issue speed of bitcoin was reced to 25 bitcoins per block
bitcoin mining relies on the use of computer chips to calculate specific encryption algorithms. With the increasing scarcity of remaining bitcoin resources, the mining cost of a single bitcoin is also increasing. As long as the function of supercomputer is completely based on a specific encryption mathematical algorithm. Changes in bitcoin are soon over. And the time is very short.
8. Of course, I lost
in the past, a guy from the United States used his position to dig with a supercomputer, but it was found that...
it is said that the money he got was so little, even one tenth of the electricity bill was not enough!
in the past, a guy from the United States used his position to dig with a supercomputer, but it was found that...
it is said that the money he got was so little, even one tenth of the electricity bill was not enough!
9. Ask the experts
10. Brother, I advise you not to come. I'm an intern in the futures company now. It's very miserable. I'm a research assistant. I've been training for a week, but I haven't learned anything. My daily work is similar to that of a clerk.
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