Virtual currency city node

2.

Virtual currency is the currency used for electronic circulation. Now the scope of virtual currency is very large, including q-coin, bitcoin and so on. With the development of digital currency, virtual currency is becoming more and more abundant, which may become the mainstream in the future. For example, BTC, EOS, bcbot and so on are not only virtual currencies, but also algorithms, landing projects and technologies

virtual currency is mainly issued by online game service providers to purchase game props, such as equipment, clothing, etc. But at present, the use of virtual currency has gone far beyond this category. Virtual currency can be used to buy game cards, physical objects and download services of some movies and software

extended data:

real risk

as the proct of e-commerce, virtual currency has begun to play an increasingly 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

fraud

the private transaction of online virtual currency has realized the two-way circulation between virtual currency and RMB to a certain extent. The activity of these traders is to buy all kinds of virtual currencies and procts at a low price, and then sell them at a high price to earn profits. With the increase of such transactions, there are even virtual mints. In addition to the virtual currency provided by the main company, there are also some people who specialize in "virtual coin making" to obtain virtual currency by playing games and then resell it to other players

Taking Wenzhou as an example, there are about seven or eight such "virtual mints" with four or five hundred practitioners. This not only creates a bubble for the price of the virtual currency itself, but also causes trouble for the normal sale of the issuing company. It also provides a platform for selling and collecting money and money laundering for various cyber crimes. p>

impact system

in modern financial system, the issuers of money are generally central banks, which are responsible for the management and supervision of money operation. As the equivalent exchange goods used to replace the real currency circulation on the Internet, the virtual currency on the Internet is essentially the same as the real currency. The difference is that the issuers are no longer central banks, but Internet companies

if the development of virtual currency makes it form a unified market, each company can exchange with each other, or virtual currency is integrated and unified, and all of them are based on the same standard and price, then in a sense, virtual currency is currency, which is likely to form a threat impact on the traditional financial system or economic operation

reference: network virtual currency

3. Virtual digital currency international trading market website?

4.

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 cost

③ 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 technology

4. 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 agreement

bitcoin 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

5. Bitcoin is a kind of virtual currency in the form of P2P. Point to point transmission means a decentralized payment system. Bitcoin does not rely on specific currency institutions to issue, it is generated through a large number of calculations of specific algorithms. Bitcoin economy uses a distributed database composed of many nodes in the whole P2P network to confirm and record all transactions

6. Hello, in this case, you can go to the physical examination center for examination. The examination cost of the physical examination center is lower than that of the hospital

7. In short, there are three ways:

8.

I. to city coin users and supporters:

since its launch, the city coin project has received the attention and support of the instry. The city coin blockchain has accumulated four years of energy, continuously iterated and developed, and started to upgrade the wallet in 2018. Now the first version of city coin blockchain 2.0 has been upgraded. City coin team hereby announces that city coin blockchain 2.0 will be officially open for public beta on May 11, 2018 Beijing time. Here, the city coin team would like to express our heartfelt thanks to all system developers, city coin members, participants and supporters

City coin blockchain 2.0 will have the following core functions:

1. Independent innovation of POS algorithm, energy saving, stability and safety

2. Low delay and low cost of city coin payment

3. One button coin: no code, you can issue money by filling in the form, and you can complete it in one minute

4. Parallel sub chain: create an independent blockchain ecology, and program editing is simple and convenient, Rece development time and save cost

5. C2C transaction: City Coin Wallet C2C transaction, realize completely decentralized transaction

6. Support cross chain atomic transaction: use wallet locking technology to realize atomic transaction between various digital currencies

the public beta mainly realizes the following functions:

1. Independent innovation POS algorithm, City coin blockchain 2.0 will strive for more node deployment around the world

2. Low delay and low cost of city coin payment

3. With one key coin issuing and parallel sub chain, it is no longer difficult for enterprises to issue coins and apply blockchain

we sincerely invite you to participate in the public beta of city coin blockchain 2.0, which will start on May 11, and the beta period is expected to be 2 weeks. If there are no big bugs ring the beta period, no files will be deleted and officially launched

the R & D team of city coin will complete other core functions as soon as possible. Please pay close attention to the progress of city coin. In the future, we will release City coin blockchain 2.0, and other functions will be improved as soon as possible

the launch of city coin blockchain 2.0 is of landmark significance to the development of city coin, which means that city coin is closer to the goal of becoming a simple, stable and scalable blockchain network

in the near future, city coin will complete the registration of diversified assets on the chain, make the digital assets on the chain more efficient, flexible and circulating, truly let the development team and users join in the ecology of city coin, and create a stable ecological environment of blockchain

City coin will continue to work hard, join hands with city coin users, and strive to achieve the vision of decentralization

2. Introction to citycoin:

a cryptocurrency, also known as digital currency, citycoin is jointly and synchronously issued by South Korea, Japan and Hong Kong blockchain companies based on blockchain 2.0 core technology, global financial instry payment without borders

3. Currency design concept:

1. Design orientation

1. Visual effect: technology, value, function, stability, image

2. Design Vocabulary: technology, internationalization, graphic culture, decoration

Second, design theme:

"peer to peer network, urban currency

Third, composition annotation:

1. The logo takes science and technology as the concept, takes golden color as the basis, and takes neural network as the basis, so as to fully demonstrate" blockchain technology serves the society with science and technology prosperity "; The concept of the new concept

2. Circle, neural network and letters are the basic elements of this logo, and its structure is easy to think that science and technology lead the world and lead the future. In line with the instry characteristics of the enterprise; "C" in the middle stands for "city currency". It can be transformed into a firm fist to show the development of enterprise culture and career. It can be said that "C" is firm as one and has no disadvantage

3. This logo is mainly in gold, which represents stability, and its structure is brown, which represents technology, value, stability and function; The circular dotted line symbolizes the light of the sun and represents hope, vitality, strength and unity; Deformed "C & quot; Surrounded by brown lines and gold, it represents the unity of science and technology, development, enterprise and firmness

4. The logo culture is not only the art style of today's international design, but also the exhibition of the contemporary enterprise's style of the times. It communicates with the public with simple and clear graphic language, so that the enterprise information can be quickly transmitted and the precipitation of brand information culture can be formed

citycoin style:

4. Citycoin white paper: citycoin white paper