The debt of nature of virtual currency
1、 Different definitions:
1. virtual currency:
virtual currency refers to non real currency
digital currency:digital currency is an alternative currency in the form of electronic currency. Both digital gold coin and cryptocurrency belong to digiccy
3. Cryptocurrency:
cryptocurrency is a kind of transaction medium that uses cryptography principles to ensure transaction security and control the creation of transaction units
4. Token (token):
a kind of article whose shape and size are similar to currency, but the scope of use is limited and has no currency effect, and its token is the homonym of token in English
Second, the characteristics are different:1; It can also be said that virtual currency is personalized currency. In another way, it can also be called information currency
2. Digital currency:
is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of specific virtual communities
Cryptocurrency:cryptocurrency is based on the decentralized consensus mechanism, which is opposite to the banking and financial system relying on the centralized regulatory system
4. Token (token):
usually needs to be exchanged for money, used in shops, playgrounds, mass transportation and other places, as a voucher to use services and exchange goods
extended data
at present, digital currency is more like an investment proct, because it lacks a strong guarantee agency to maintain its price stability, and its role as a value measure has not yet appeared, so it can not be used as a means of payment. As an investment proct, digital currency cannot develop without trading platform, operating company and investment company
digital currency is a double-edged sword. On the one hand, the blockchain technology it relies on has been decentralized and can be used in other fields except digital currency, which is one of the reasons why bitcoin is popular; On the other hand, if digital currency is widely used by the public as a kind of currency, it will have a huge impact on the effectiveness of monetary policy, financial infrastructure, financial market and financial stability
in the era of material abundance, money can buy what you want and enrich your life. Therefore, people have a dream of realizing wealth freedom and entering a better life there are many such dreams, which are often used. With the development of the Internet, online transactions have become more convenient and fast, people's financial management ideas have improved, and they will take spare money to invest, but the bank interest is low, the fund will not choose, and the stock water is too deep. Generally speaking, the income can't tempt greedy people
1. It is illegal to have a financial trading platform that is not recognized by China Securities Regulatory Commission and China Banking and Insurance Regulatory Commission. With the concept of blockchain being put forward, virtual currency has become popular. In China, there are bitcoin, Leyte coin, Ruitai coin, etc. the income of these virtual currencies has been blown to be amazing. People who listen to these virtual currencies will be envious and have new illusions. They don't know that this is just a Ponzi scheme, and the virtual currency trading platform will trick investors into inviting them, After the investors' funds are cheated, there will be a series of figures. Some of them will fall sharply as soon as they buy, and smart people can stop losses. Some of them will go up sharply when they buy, and investors will continue to add chips, and finally they can't cash out
virtual currency and electronic currency are not the same concept
the definition of e-money is to convert a certain amount of cash or deposit from the issuer and obtain data representing the same amount. By using some electronic methods, the data can be directly transferred to the payment object, so as to pay off the debt. E-money means that consumers pay traditional money to issuers of e-money, and issuers store legal money of equal value with traditional money in electronic devices held by consumers
electronic currency is the electronization of the legal tender, including our common bank cards, Internet banking, electronic cash, etc., as well as the third party payment developed in recent years, such as Alipay, fortune paid and so on. No matter what form these electronic currencies are and through which institutions they circulate, their original source is the legal money issued by the central bank
but virtual currency is the electronization of illegal currency, and its original issuer is not the central bank. For example, Tencent Q currency and other game currency, such virtual currency is mainly limited to circulation in a specific virtual environment. After the emergence of bitcoin, through the blockchain technology to better solve the problem of decentralization, distrust, to achieve global circulation, is sought after in the world. Electronic currency and virtual currency are collectively referred to as digital currency
Background: the financial application of blockchain technology brings high investment value
2018 China international big data instry Expo opened in Guiyang City, Guizhou Province on the 26th. At the meeting, it was pointed out that China will vigorously develop the digital economy in the future, deeply implement the action plan for the development of big data and cloud computing, and deeply study blockchain technology and application. Especially in the field of finance, the landing application has become the focus of the scientific and financial circles
1. The value source of blockchain is that it can perfectly solve the pain points of the current financial instry:
in today's asset securitization, insurance, supply chain finance, commodity trading, asset custody and other financial scenarios, e to many participants, high cost of credit evaluation, low settlement efficiency of intermediary institutions and other reasons, Traditional financial service methods are difficult to effectively solve the long-standing core pain points in the instry, such as information asymmetry, complex and rendant processes, and high information verification cost
2. Why can blockchain solve the above pain points:
blockchain technology integrates many basic technologies, such as distributed accounting, tamper proof, built-in contract, etc., and constructs a trust building mechanism with lower cost. The financial application based on blockchain technology can realize the ability of all market participants to obtain all transaction information and asset ownership records in the market without discrimination, and effectively solve the problem of information asymmetry; Smart contract embedding reces the error rate of payment and settlement, simplifies the process and improves efficiency; At the same time, based on transparent information and brand-new trust mechanism, there is no need to spend manpower, material resources and financial resources to confirm information among participants, which will greatly rece the trust cost between institutions, and then rece the price of financial services and transaction costs
3. The application of blockchain technology in the financial field mainly includes the following aspects:
① digital currency
among which bitcoin is the most famous. On the basis of bitcoin, a large number of other types of decentralized digital currencies have been derived. Such as: the heyday of bits
Compared with the traditional payment system, blockchain payment can directly carry out end-to-end payment for both parties without the help of the banking system, which can greatly improve the speed and rece the cost③ digital bills
④ bank credit management: the advantage of blockchain is that it can rely on program algorithm to automatically record credit related information and store it on every computer in the blockchain network, with transparent information, tamper proof and low cost
The major financial institutions and exchanges in Europe and the United States have explored the application research of building the next generation of financial asset trading platform based on blockchain technology4. The development prospect of blockchain. The future development of blockchain technology will have the most vitality with alliance chain as the entry point, and will have a significant effect and far-reaching impact on the transformation of traditional financial instry pain points
in response to the good investment prospects of blockchain, domestic enterprises such as Alibaba, Jingdong and Netcom have entered the market. The application of financial scenarios based on blockchain technology not only brings us security and convenience, but also provides us with broader investment space. The rise and price surge of digital currency represented by bitcoin (bitcoin was about RMB 20 cents when it was first listed in 2009, and its current price is about US $7300!) It's the best proof that people with a keen sense of smell have made a lot of money from it
Abstract: This is an encrypted digital currency based on the bitcoin developed by Nakamoto Tsung, which improves and adds many new functions, such as the double-layer reward system network, also known as the main node network. It also includes anonymous payment to improve the interchangeability (bitage) and real-time payment function docking to realize real-time transaction confirmation without relying on the authority of the center (P2P mall) In 2009, Nakamoto put forward the concept of bitcoin. Since then, bitcoin has spread rapidly in mainstream applications and commercial uses, becoming the first digital currency to attract a large number of users, which is a milestone in the history of digital currency. However, from the perspective of completing the transaction, we can find an important problem, that is, it takes too long for bitcoin block to confirm the transaction. Traditional payment companies have found a solution to enable the buyer and the seller to realize zero confirmation of bitcoin transaction, but this solution usually requires a trusted third party to complete the transaction outside the agreementbitcoin provides pseudonym transaction, realizes the one-to-one transaction relationship between sender and receiver, and can always record the transactions occurred in the whole network. Bitcoin only provides low-level privacy protection, which is well known in academia. Despite this deficiency, many people still believe in the transfer history recorded by blockchain
based on Nakamoto's achievements, bitshengshi is an encrypted digital currency with the purpose of protecting privacy. We have made a series of improvements on the basis of the concept of bitcoin, resulting in a decentralized cryptocurrency with good anonymity. It supports tamper proof real-time transactions, and has a point-to-point sub network that can provide service reward system for bitsheng network
2. Master node network
the whole node is the server running on the P2P network, so that small nodes can use them to accept the dynamic changes from the whole network. These all nodes need significant traffic and other resources that consume a lot of cost. Therefore, it will be observed that the number of these nodes on the bitcoin network presents a steady downward trend over a period of time, so that the block broadcast time needs an additional 40 seconds. In order to solve this problem, many solutions have been put forward, such as the introction of Microsoft Research's new incentive plan and bitnodes incentive plan
Figure 6: Mining reward model
As a proct of e-commerce, virtual currency is playing a more and more important role, and it is more and more connected with the real world. However, with the growth of virtual currency, the relevant laws and regulations are lagging behind, which has laid many hidden dangers
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fraud
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impact on financial system
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network security problems
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solutions
with the continuous progress of technology, electronic payment (including electronic money) is changing people's payment habits, but also changing people's consumption habits, promoting the expansion of consumer credit. It is necessary to pay close attention to the innovation of the form, the evolution of the nature, the difference of the operation mode and the possible impact on the credit risk and moral hazard of this new thing, and properly supervise it. But the more important thing is to give the market main body corresponding development space, avoid strangling the development vitality of the corresponding business organization in the early stage of market development. Therefore, the best way to treat e-money is to observe its changes and strengthen research. In the face of such remarks as "q-coin impacts the RMB financial market", we need to discuss them in the context of scientific and technological progress. The key to understand the problem is how to design relevant policies and encourage the development of electronic payment instruments such as electronic money, rather than the harm of speculative virtual money and electronic money. We call for strengthening supervision
Virtual currency is not a real coin, but a virtual thing. Virtual currency also has its own value, because it is a kind of training for investors
they think that some virtual currencies will have a great market, so at this time, as an investor, unique vision is very important. If you enter too late, then the virtual currency may not have any value. If you enter too early, it may not be what you expect. So at this time, the entry time is very important
So virtual currency can also make us grow rapidly, which is the judgment of the overall situation and the learning of knowledge. So virtual currency, for us, is a kind of income. Of course, we don't know how much this kind of income is in the early stage. Secondly, it enables us to learn quickly and improve our knowledge literacy, and it can also learn through continuous practice and combine practice with learning. These are exactly what we need to do, He also plays the role of supervisionNo. Virtual currency with good operation and investment will survive for a long time and will not go bankrupt in a few months, such as bitcoin and internet currency of Internet companies
there are various types of virtual currencies. The virtual currencies with high acceptance abroad are Facebook's f currency, online game second life's Linden currency, etc., while the representative virtual currencies in China are Tencent's Q currency, Sina's u currency, online currency, Shanda Yuanbao, etc
virtual currency is different from check and telegraphic transfer. The value that virtual currency can't realize can't be transferred by bank. At present, it can only circulate in the network world. Virtual currency is released by various network organizations, and there is no unified issuance and management standard
2. The special currency issued by the portal website or instant messaging service provider is used to purchase the services in the website the most widely used is Tencent's q-coin, which can be used to purchase value-added services such as membership and QQ show
3. Virtual currency on the Internet. For example, bitcoin, Wright currency, etc. bitcoin is an electronic currency proced by open-source P2P software. Some people also translate bitcoin as "bitcoin", which is a kind of network virtual currency. It is mainly used for Internet financial investment, and can also be directly used in daily life as a new currency
1. Process: it is equipped with the latest generation of 5nm manufacturing process to bring the strongest processor performance to users. The 5nm manufacturing process brings the most top technology, cost and functional performance requirements
2. Core: the three cluster architecture of super core + big core + small core is used, in which the super core is cortex x1, the big core is cortex A78, and the small core is cortex A55
3. Experience: Super core cortex-x1 has 1MB L2 cache, while A78 has 256Kb L2 cache, which can give you better performance experience,
brings the strongest architecture for users at present, with A78 20% higher in performance and machine learning 100% higher in performance
4. Optimization: for game optimization, provide users with variable coloring rate, It can improve the performance by 30%
5. Other aspects: for other aspects of the game, 144hz high refresh rate / high frame rate, true 10 bit HDR, surreal enhanced image quality, fast mixing,
GPU driver update, Xbox cloud / Google stadia / Amazon Luna cloud game, etc<
second place: snapdragon 870
1. Process: 1 * 3.19ghz + 3 * 2.42ghz + 4 * 1.8GHz eight core configuration,
2. Architecture: one large core and three medium cores adopt a77 architecture, and four small cores adopt a550 +
3. Other aspects: the GPU of snapdragon 870 is the frequency upgraded adreno650, and the baseband is still x55 modem< GPU: the performance of the new generation kryo 585 CPU is improved by 25%, and the overall performance of the new Adreno 650 GPU is also improved by 25% compared with the previous generation platform
5. Experience: it brings 7Nm proction technology, which brings the best mobile phone performance experience for users
6. Pixel: 1 billion pixel high-speed ISP, processing speed up to 2 billion pixels per second, supporting new shooting features and functions
7. Video: users can take 4K HDR video with 1 billion colors, 8K video or capture photos up to 200 million pixels<
third place: snapdragon 865
1. CPU: new kryo 585 architecture, up to 2.84ghz
2. GPU: with Adreno 650, the performance is 25% higher than that of snapdragon 855
3. With snapdragon x55 5g baseband, it can support up to 7.5gbps download speed and WiFi 6 protocol
4. It adopts the fifth generation AI engine and supports the computing power of 15 tops
5. It supports lpddr5 memory, 144hz screen refresh rate, 200 megapixel camera, 8K 30 frame video recording and 960 frame slow motion shooting
6. The main frequency of CPU is consistent with snapdragon 855. The new cortex-a77 architecture should have about 20% performance improvement according to the official data of arm
7. GPU is 25% higher than snapdragon 855, and the overall performance is 20% higher. Lpddr5 memory is also a bonus
fourth place: snapdragon 855 +
1. Both snapdragon 855 and snapdragon 855 + CPU adopt the same architecture kyro485. The difference is that their large core frequency is different. The large core frequency of 855 + is 2.96ghz higher than that of 855< In terms of GPU, 855 and 855 + are both adreno640, but their frequencies are also different. The frequency of 855 + is 672mhz, while that of 855 + is only 585mhz. The graphics ability of 855 + is 15% higher than that of 855
3. The same 7Nm process, both of them adopt the 1 + 3 + 4 8-core design. Except for the different frequencies of the large cores, the frequencies of the other 7 small cores remain unchanged< So in theory, snapdragon 855 + has stronger mononuclear ability
5. The iqoo equipped with Xiaolong 85 and Nubia z20 equipped with Xiaolong 855plus are compared. According to the running points, the actual performance of Xiaolong 855 + is more than that of Xiaolong 855 in both single core and multi-core performance. The actual performance of 855 + is still better than that of 855
fifth place: Xiaolong 855
1 CPU: the memory delay is higher than that of the Kirin 980, but the overall performance of the CPU is still slightly higher than that of the Kirin 980. The performance of specint2006 is 51% higher than that of the 845, and the CPU energy efficiency ratio is 39% higher than that of the 845. In specfp2006, it is 61% higher than that of the 845, and it is 4% and 9% higher than that of the Kirin 980. Although the highest core reaches 2.85ghz, the energy efficiency is still excellent
2. AI: after the blessing of hexagon 690, compared with 845, AI performance has been greatly improved, which is about 2.5-3 times that of 845
3 and application: it is not awesome in terms of system application performance, stronger than 845, but weaker than 980, official expression may be the relationship of scheling on the engineering machine, and the official commercial equipment will be improved. GPU: the peak performance of Adreno 640 GPU is still far behind A12, but the energy efficiency ratio is good. The average power consumption of off screen rendering of gfxbench3.1 is 4.44w. In terms of energy efficiency, the peak state of A12 is 17.36fps/w, the down frequency state is 20.18fps/w, 855 is 16.05fps/w, 845 is 11.99fps/w, 980 is 11.93fps/w, and the overall energy efficiency ratio is 30% higher than 845<
sixth place: snapdragon 845
1. Snapdragon 845 still adopts eight cores of 10nm process, which is the most advanced technology in the market. Compared with snapdragon 835, it has made improvements in both large and small cores. The four cores are A75 architecture and the four small cores are A55 architecture
2. At the same time, snapdragon 845 introces a new security processing unit SPU, while GPU adopts Adreno 630, which improves the overall efficiency by 25% - 30% compared with Adreno 540 of snapdragon 835
3. Snapdragon 845 is equipped with 5g frequency regulator; In terms of overall performance, 845 is 20% - 25% better than 835
4. Snapdragon 845 supports Gigabit LTE connection through X20 LTE modem, and supports 2x2 al channel Wi Fi and 4x4 MIMO technology, providing more stable and faster network connection for players<
seventh place: snapdragon 730g
1. The multi-core performance of snapdragon 730g processor is not as good as that of snapdragon 845 processor, and the single core performance is better than that of snapdragon 845 processor. Each processor has its own victory or defeat
2. Snapdragon 730g has built-in CPU with kryo470 architecture, which is built by instry-leading 8nm process technology
3. Snapdragon 730g integrates frequency enhanced adreno618gpu, which makes its graphics processing performance 25% higher than snapdragon 710 and graphics rendering speed 15% higher than snapdragon 730. The g of snapdragon 730g refers to game
4. The snapdragon 730g also supports some of the snapdragon elitegaming functions, which can bring more amazing game screen effects
5. Snapdragon 730g also supports qcommaqstic audio technology, which can bring clear and smooth surround sound<
eighth place: snapdragon 730 AIE
1. 730 has surpassed 835 as a whole. If the price control is in place, it will be a god u, which can replace 835 in all aspects. 730 Angou has exceeded 835
2. Snapdragon 730 chip is made by 8nm process. According to Angou's running score test, Lenovo Z6's running score is as high as 200000, And Master Lu's running score is 250000
3. Xiaolong 730g is equipped with the enhanced version of Adreno 618 GPU (supporting Vulkan version 1.1), and its performance is 15% higher than the ordinary version of Xiaolong 730
4. With the support of the new A76 architecture, the CPU performance of snapdragon 730g has caught up with that of snapdragon 845 with only two A76 cores, and the daily application experience is very smooth
5. The CPU frequency of snapdragon 730g is 2.4GHz, and the GPU frequency is 825mhz; The main CPU frequency of snapdragon 730 is 2.2GHz, and the main CPU frequency is 700MHz. This means that the CPU and GPU frequency of snapdragon 730g is higher than that of snapdragon 730<
No.9: snapdragon 765G
1. Compared with the previous generation snapdragon 730 processor, the main frequency of snapdragon 765G is increased to 2.4GHz, adopting the architecture of 1 * kryo 475 prime (2.3 / 2.4GHz) + 1 * kryo 475 gold (2.2GHz) + 6 * kryo 475 silver (1.8GHz)
2. The processor adopts the 7Nm EUV process manufactured by Samsung, which reces the power consumption by 35% compared with the 8nm snapdragon 730. The GPU is upgraded to the Adreno 620
3. Snapdragon 765G supports up to 192mp pixels, single shot 3600W pixels and zero delay shooting, which is equivalent to the previous generation's level. It supports Bluetooth 5.0, WiFi 6 and 120Hz refresh rates, and AI 5.5tops
4. The most important feature of snapdragon 765G is that it integrates snapdragon x525g baseband and and supports SA / NSA al-mode networking. Its theoretical maximum peak download rate is as high as 3.7 Gbps and upload rate is 1.6 Gbps. At the same time, it also supports 5g millimeter wave, band below 6GHz, global 5g roaming, WiFi 6 and other features<
No.10: snapdragon 765
1. Snapdragon 765 adopts kryo 475 CPU, with a maximum dominant frequency of 2.3ghz; The Adreno 620 GPU is 20% faster than the previous generation< 2. The fifth generation AI engine adopts hexagon 696 tensor processor; Spectrum 355 ISP supports up to 192 megapixel camera, 480fps 720p slow motion video capture and 4K HDR video capture capability
3. Built in X52 modem, it supports millimeter wave, TDD and FDD band below 6GHz, and can achieve 3.7 Gbps download peak and 1.6 Gbps upload peak.