About publishing Shenzhen blockchain 50 Index
in 2017, blockchain became the focus all over the world. If at the beginning, the emergence of blockchain made people in the instry excited, and the ordinary people took an indifferent attitude and just ate melon Road, now it can be said that blockchain has quickly and deeply entered the public field of vision
the concept of blockchain was proposed by Nakamoto in 2008. It has the characteristics of decentralization, non tampering, traceability and so on, attracting many investors to participate in it. Blockchain has graally entered into various instries, which has brought considerable changes as well as some adverse effects
through the collection and collation of relevant data of China's blockchain instry, analysts analyzed and discussed the development trend of China's blockchain instry. The rising trend of blockchain popularity is obvious. From the network index trend chart of blockchain and digital currency in the past six months, it can be seen that the popularity of blockchain only increases, and even rises explosively by the end of 2017. According to the trend chart, it can be predicted that the growth of blockchain network index will show a gentle trend in the near future
the network index of digital currency closely related to blockchain is not much different from that of blockchain before 2018. That's because the popularity of blockchain ignites the value of bitcoin, and many people take the opportunity to follow suit, which makes the market once chaotic. Since the beginning of 2018, the network index of blockchain has far exceeded that of digital currency. This change shows that more people are focusing on blockchain, which will be more concive to the healthy development of blockchain technology
as the value of digital currency represented by bitcoin doubled, ICO came into being. ICO financing mode is similar to and different from the traditional IPO Financing Mode. It can open the global market and get more development opportunities. However, e to many people's ulterior motives and the fact that ICO does not go through any strict review process at present, the ICO market is in chaos. The positive and negative effects of ICO also make various countries hold different attitudes in the face of this mixed market
according to the attitude information table of some countries towards ICO, China and Japan have the most clear attitude. China has banned ICO projects and defined them as illegal financing; Japan allows ICO projects and takes the lead in establishing blockchain alliance; The Philippines, Russia, Canada and other countries adopt the mode of supervision and development, do not prohibit ICO projects, and actively build regulatory systems. The United States is a federal country, and the attitude of each state is different
it is worth mentioning that the attitude of Hong Kong and Macao of China towards ICO coincides with that of the mainland, while that of Taiwan is quite different. The person in charge of "Taiwan financial regulatory authority" promised to adopt a more friendly attitude and support enterprises to develop and adopt cryptocurrency and blockchain technology in Taiwan
the top 10 national blockchain platforms are mainly concentrated in Beijing, Shanghai and Guangzhou
according to the national blockchain platform TOP10, bitmainland, Babbitt / blockyuan and fire coin net have taken the top three positions. The blockchain platforms of TOP10 are mainly concentrated in Beijing, most of which were launched earlier than 2016. Generally speaking, the development of blockchain has driven the development of related instries, and also set off a wave of entrepreneurship
the enterprises related to blockchain are mainly concentrated in Beijing, Shanghai and Guangdong, which are affected by the high barriers of blockchain technology. Beijing is rich in human resources and has a good entrepreneurial environment. Shanghai has a unique financial position and has the greatest possibility of incubating the most successful enterprises in the application of blockchain. Guangdong has a strong entrepreneurial atmosphere, which can attract relevant entrepreneurs and promote the landing of relevant enterprises. In addition, Hangzhou also benefited from its excellent Internet finance instry, and the blockchain instry performed well. With the development of blockchain, there will be more related enterprises in more cities< The heat of br/> block chain has also been reced, and a large number of official account have been generated. From the TOP10 official account of WeChat, we can see that the number one fan of "digital money trend maniac" has been estimated to be about 800000 in the past seven days, and second "Wang Chai block chain journal" predicted that the active fans are also close to 500 thousand people. The estimated number of fans who are close to 400 thousand is "third". The official account also shows that more and more people are paying attention to the block chain instry.
blockchain is becoming more and more popular. The average salary of related posts was 23800 yuan before November 2017, and it has reached 25800 yuan by 2018. According to the chart of skills requirements for blockchain positions, the most important is the commonly used development languages (go, C + +, Java). In addition, we also need to have sufficient understanding of cryptography, formula algorithm, and smart contract. In addition, there are also positions with relatively low operation threshold. In general, the talent gap in the blockchain instry is relatively large< Br/> block chain technology is considered to be the fifth core technology most likely to trigger disruptive revolution. After the stage of chaos and bubble period, with the intervention of national policies and the implementation of relevant regulation, it will graally take the right track and develop towards health. The development of br/> block chains will inevitably proce bubbles, but these bubbles will graally become controllable with the healthy development of block chains. The development prospects of block chains and the innovations they can bring are unpredictable. In the future, let's leave this stage to it and watch its performance< br/>
by the end of the issue, the total amount of 58b purchase has exceeded 100 million, and the price of a 58b is 6.55 UCC (1ucc = 1cny), that is to say, converted into RMB, the purchase amount has exceeded 600 million. 58coin official said that it will continue to follow the announcement to avoid the phenomenon of large private market, so as to let more investors participate in it fairly and openly to obtain shares, while constructive opinions from users will still be taken into consideration
at present, it is relatively recognized that platform currency has more investment value than other Shanzhai currencies, mainly based on the following three considerations: first, the trading platform has profit guarantee; Second, preferential policies for investors; Third, investors form a consensus on investment
Where does 58coin come from? Behind the popularity comes the attention to the background and advantages of the platform
it is understood that 58coin, founded in the UK in November 2017, is a one-stop blockchain integrated service platform. It holds the top ten mines in the world and provides currency transactions, 100 times perpetual contract transactions, cloud computing power transactions, etc. for global digital currency asset users. At present, it has set up offices in Japan, New Zealand and Hong Kong
in short, it is an exchange that has carried out global strategic layout and full cycle ecological layout of digital assets. The careful commercial layout behind it and its ambition to be a leader in the instry can be seen< The exclusive advantages of 58coin are as follows:
first, it has strong financial strength and holds the top ten mines in the world. It's rumored that thousands of BTCs were bought last year alone. In addition, the share of ore pools also ranked top
2. The platform promises that currency transaction and legal currency OTC transaction are free of transaction fees. Such a unique move will undoubtedly attract more investors and further expand the market depth
thirdly, 100 times sustainable contract has become a timely rain for the instry. Recently, fixed-point position explosion events have occurred frequently on some platforms, and investors have also seen the trickiness. At this time, the instry needs a conscience platform to guide the positive development of the instry. It's time to refuse the artificial fixed-point position explosion and the 58coin 100 times perpetual contract to spread losses; Just yesterday, 58coin added a number of lever multiples: 2 times, 3 times, 5 times, 10 times, 20 times, 33 times, 50 times. Meanwhile, it added some closing positions functions and strong warning SMS reminders. This gives contract players with different risk preferences more operation space and more ways to play
at present, this blockbuster proct has a good performance: in only eight days since the launch of btc100 times perpetual contract, there are nearly 10000 BTC transactions; The eos100 times perpetual contract was only on line for 3 days, and the transaction volume in half a day reached 3 times of the peak. It is said that some people have already operated from 2.5 EOS to 113 EOS through this business, making profits more than 40 times, which is hard for investors to resist< Fourth, the service ecology is more complete. Behind the 100 times sustainable contract, 58coin has a more perfect digital asset service system. Many old users of 58coin said that they started with cloud computing power at first, and then improved the legal currency OTC, currency trading, leverage trading, financing currency, and sustainable contract one by one. With the rapid development of the platform and enough attention to the interests of investors, Let many users long-term optimistic about 58coin, while long-term holding 58b
under the extreme market on May 21, 58coin did not show a strong flat in a large area. 58b made three major commitments: buy back when it fell by 10%, weekly profit included in margin, and open operation. 58coin's repurchase commitment attracted media attention. At the time of 58b's birth, many investors recognized the investment value of 58b
new things are always doubted. In the face of doubt, 58coin officials have made three promises: first, if the price of 58b currency drops by 10%, the platform will contribute to buy back, which is the first time in the currency circle; 2、 The company will convert 50% of the weekly profit into 58b, which will be included in the platform margin. The margin will be used for insurance fund of contract transaction, commission return, etc; 3、 With seven days as the cycle, announce the operation situation, including profits, and fully achieve openness and transparency
according to relevant people, 58coin dare to make such a commitment, on the one hand, it is fully confident of its own strength, on the other hand, it is to protect the interests of investors.
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abey blockchain technology is from Ciprian pungela & amp; Co., two doctors in the Department of artificial intelligence from the Department of computer science, School of mathematics and information, Western University of timishwara, Romania; Vorel negru's own research project. Constant lightweight blockchain technology and multi-layer programming and extended blockchain solution are adopted. The scale of abey's blockchain remains unchanged, with only 50 active blocks. Abey blockchain technology is suitable for the use of e-money in e-commerce system for mass transactions, and has multi-level, scalability and security, and can be programmed
according to the official white paper, abey is suitable for the blockchain solution in e-commerce system, which uses digital currency to carry out mass transactions and can carry out multi-layer programming and expansion
specific implementation method of abey blockchain Technology:
using a multi-level and programmable blockchain method to realize digital currency (for simplicity, we call it "DC"). This method can pave the way for the implementation of various e-commerce purposes, such as loan financing, completion of refundable transactions and non refundable transactions. In the first layer of the blockchain, we can realize the inherent digital currency design, which is commonly referred to as the base layer ("FL"). The various upper layers built on this foundation can be used to describe various additional functions related to various business driven application examples (which we will briefly introce below). All of the above levels are fully programmable, and can be easily adapted for various applications
although most of today's digital goods store transaction balance in the blockchain, abey's method is more similar to Pascal coin digital currency. This method uses what we call a "vault" encryption structure“ The "vault" structure can only save the balance of all accounts in the network, instead of a complete list of all completed transactions, and can be reconstructed in the evolution history of the blockchain. Since vault allows the deletion of useless content at any time, it can significantly rece the storage cost of blockchain. In contrast, at the time of writing this article, the storage space required to download bitcoin database is 70gb (the alarm rate is still growing, and it is expected to reach 300gb in 2019), so it is not feasible to use ultrabooks or notebooks with small storage space (such as 120GB or 256gb) to carry out mining operation. On the other hand, the size of the abey blockchain will remain unchanged, with only 50 blocks (at the time of writing, there are more than 525000 blocks in the bitcoin blockchain)
vault fully supports digital currency transfer between accounts. In addition, vault can assign an owner defined name to each account instead of using hashing algorithms like today's cryptocurrency - which makes the account easier to remember and makes the name public
one of the important functions that vault can help prevent the daily expenses of blockchain from being too high (especially those related to transaction history) is that vault can save such states and rece the size of blockchain itself by creating a secure of blockchain states. Because there is no transaction history and all accounts can save their direct balance, the blockchain information has the feature of partial erasure. All the blockchain states that can be stored can be regarded as landmarks of the blockchain
secure data sharing:
through the block chain structure design, for each transaction sent to the network, the block chain may contain encrypted metadata. The metadata can only be decrypted by the transaction recipient. For the transaction sent to the network, the sender's public key is included in the transaction, and the transaction receiver decrypts the metadata using the public key. Since the transaction receiver holds the private key for decryption, only the transaction receiver can implement the data decryption process. From the perspective of encryption method, although bitcoin is limited to elliptic curve cryptography, blockchain metadata can use any other encryption mechanism to complete the encryption process. This not only provides complete flexibility in security selection, but also does not have any adverse impact on the structure or function of the blockchain
scalability:
since the abey blockchain supports the creation of historical landmarks by design, it is very easy for the network itself to achieve high scalability from the point of view that the blockchain will always need to store (related to the latest existing SLS). This method completely eliminates the need to store transaction history to calculate the balance of all accounts, and can directly store all account balances, so as to ensure that the specific balance information provided by all nodes in the network meets the requirements of Byzantine consistency
proof of security and workload:
it is impossible to have two-way payment operation in abey's method (in the specified appropriate scenario, the vast majority of today's mainstream cryptocurrencies may theoretically have two-way payment operation). Each transaction means that the balance of the corresponding account is updated in a relatively simple way, and there is no special way to restore the transaction from the network pending transaction team. For the abey blockchain, since all technical / functional layers are built on vault, vault is the infrastructure of our blockchain, so vault is very important for mining operations. Our proposed blockchain model is composed of a series of blocks, each of which is generated by the nodes in the network who are willing to mine. All nodes in the network can update the account balance independently according to the transaction (part of the block), and are independent of other nodes. The mining operation will affect the first functional layer. In addition to updating the balance, each node can also update other matters that may belong to the upper functional layer in the composition of the blockchain structure. Once an update occurs, a new mining incentive block will be created. The mining reward block contains a number of new reward accounts that have been assigned to miners. The miner is the winner of the above reward according to the workload Certificate (currently there are 50 reward accounts). The way to reward is to distribute the public key of all such accounts to the reward recipient
blockchain technology layer:
abey's digital currency model contains a multi-layer structure, in which the first layer represents the realization of the digital currency itself (see Figure 7 for graphic explanation). The corresponding levels include:
tier 1 → digital currency (cryptocurrency): currency transfer, mining
tier 2 → refundable transaction and non refundable transaction: allowing the use of digital justice system to complete refundable transaction
Tier 3 → related parties and commission: allowing the automatic distribution of Commission to related parties
Tier 4 → contacting currency: by lending currency, Income based on interest
layer 5 → programmable: reserved for future realization of Turing complete programming model, so as to process blockchain data in a customized way (such as smart contract)
layer 6 → custom protocol: reserved for future use
transaction type:
abey mode allows different levels in blockchain through design, Complete a variety of transaction types. The transaction types in the second layer are as follows:
1 → fund transfer: fund transfer between accounts (1-to-1 transfer)
2 → refundable fund transfer: refundable transaction between accounts. Use escrow balance instead of regular account balance
3 → key change: change the key that can be used to process the account
4 → restore the account: recover funds from the lost and invalid account
5 → set account name: define the name of the account held by the founder
6 → sales preparation: mark the account for sale
7 → move out of the sales queue: remove the account sales mark, And the account is marked as non saleable
refundable transaction and mediator:
for the vast majority of cases, non refundable transaction is equivalent to all "pay to pay" transactions in blockchain based digital currency mode. But abey has introced the concept of refundable transactions into its digital currency model. In abey mode, the transaction marked with small flag belongs to refundable or non refundable transaction. In addition, in abey's blockchain network, each account contains two types of balance: regular and unchangeable balance (used to mark the amount that the account has received and can be paid immediately, but cannot be recovered after the payment) and escrow balance (including the transaction list marked as refundable transaction and the minutes of each transaction)
8 → payment dispute: for the corresponding transaction that has been marked as a refundable transaction, the payment dispute can be initiated only by the payer
9 → refund request: for the corresponding transaction previously marked as a refundable transaction, a refund request can be initiated, but only by the payer
10 → cancel escrow: cancel the escrow funds and return the funds to the payer immediately. It can only be initiated by the payee
11 → release trusteeship: release the trusteeship fund and add the amount to the balance of the payee's account immediately. It can only be initiated by the payer
related parties and commissions:
one of the important deficiencies in today's blockchain driven financial technology is the lack of the ability to provide rewards to related parties who sell specific procts or services. The third layer of abey blockchain can solve this problem< Lending digital currency:
lending digital currency is not only a simple and quick way to allow people to borrow legal tender, but also to ensure the security of encrypted assets. Given that today's valuable digital currencies are also used for transactions, the reason why lending digital currencies is feasible is not only that it allows borrowers to mortgage any type of cryptocurrency they save, but also that it is attractive because it is a way to retain their digital assets in a completely safe or very low-risk way. In addition, abey's model also provides built-in protection through the customer vault lending gateway (VLG), and enables the VLG to act as a buffer between the lender and the borrower
12 → borrowed funds: the borrower initiates transactions in the network, announces the intention of borrowing funds, and specifies the VLG account of the borrowed funds. The transaction is similar to depositing the balance of the regular / escrow account in the selected VLG account
13 → return of collateral: the transaction is initiated by the VLG itself. VLG will return the collateral to the borrower in accordance with the risk management policy
14 → loan repayment: the transaction is initiated by the borrower. If VLG accepts repayment of the loan in digital currency, the borrower may choose to repay the loan in digital currency. Under this condition, the digital monetary fund will be converted into VLG regular account balance<
programmable blockchain:
with its associated metadata payload, the layer of blockchain can be retained to allow the further creation of intelligent contracts between peers in the network by executing the grammar based "complete Turing basic programming language" according to the original blockchain data processing mode. For each payload, encryption or public visibility processing can be implemented, and can be performed in a dedicated virtual environment (similar to a virtual machine). This method can effectively protect data security and avoid the impact of data destruction and security vulnerabilities. The main advantage of this method is that this layer can create and enforce digital contracts without any blockchain specific programming. For Ben
the exhibition area of this gold Expo includes eight theme areas: international exhibition area, banking exhibition area, securities, funds, futures exhibition area, insurance, guarantee and small loan exhibition area, science and technology finance exhibition area, gold finance exhibition area, instrial finance exhibition area, Guangdong Hong Kong Macao Bay area and comprehensive finance exhibition area<
eight theme sections
fully present the grand occasion of the instry
the integration of science and technology and finance has become a major trend in the development of the financial instry, so this exhibition set up a science and technology finance exhibition area for the first time to show the new achievements and development direction of the integration of science and technology and finance. During the exhibition, the 2017 Summit Forum on the integration of financial technology and asset management will invite many experts to show leading financial technologies and solutions, and help build a new financial ecology driven by technology
it is noteworthy that Tencent will participate in the Shenzhen Golden Fair for the first time and become the most typical representative of financial technology
Shenzhen plays an important role in the whole Guangdong, Hong Kong and Macao Bay area. Therefore, this Shenzhen gold Expo will specially set up a Guangdong, Hong Kong and Macao Bay area exhibition area to display the financial interaction content between the "9 + 2" cities in the bay area. The exhibition also set up gold finance, supply chain finance and Instrial Finance exhibition area
in addition, this year's international exhibition area has attracted financial institutions, instry organizations and enterprises from Indonesia, the United Kingdom, Thailand, Israel, Malaysia, Hong Kong, China and other countries and regions to participate in the exhibition. It will highlight overseas financial institutions, overseas investment projects and related supporting service institutions, so as to further enhance the professionalism and international influence of the exhibition
in line with the theme of steady financial development and serving the real economy, four districts, Futian District, Nanshan District, Luohu District and Longgang District, have also set up image booths with financial theme in the exhibition hall. Each district shows the development of the financial instry in its jurisdiction, and highlights the theme of financial serving the real economy in the enterprise exhibition group. Nanshan District will focus on the theme of science and technology finance; Luohu District will show the overall development plan of the financial instry and the development ideas of the key layout of the gold financial instry; Baoan financial supermarket will hold project roadshow and theme salon. In addition, Qianhai Shekou free trade zone will show the overall development of Qianhai Shekou free trade zone and Qianhai Shenzhen Hong Kong modern service instry cooperation zone as well as the development of financial innovation<
Summit Forum
focus on instry hot spots
integrate financial institutions and instry associations, hold various forums, lectures, promotion meetings, etc., and focus on discussing and exchanging new business forms of financial development, which is a major feature of previous Shenzhen gold Expo. The fair will also hold more than 10 summit forums to focus on various key issues in the development of the financial instry. Many influential financial authoritative experts, chief researchers, professors, financial enterprise executives, enterprise investment representatives and outstanding entrepreneurs will collide and exchange in major forums, making the exhibition a high-end platform for dialogue, exchange and cooperation in the financial instry
one belt, one road, and innovation driven development, etc., and the application of advanced information technology such as cloud computing, big data and block chain in the financial field has promoted the transformation and upgrading of the financial instry. "Financial technology" has become a new trend of the steady development of Shenzhen's financial instry. In order to ensure the effectiveness of this exhibition, "the third China (Shenzhen) financial management forum" will be held ring the exhibition, with the theme of financial technology and bay area power. Many well-known experts and scholars at home and abroad will be invited to give keynote speeches to discuss many financial management issues such as financial technology reform and financial innovation
Shenzhen Securities Association will hold the 8th Shenzhen capital circle innovation forum ring the exhibition. As the annual meeting of Shenzhen capital market innovation, the forum will focus on the innovative ideas, innovative procts, innovative services and innovative technology of Shenzhen securities business institutions. Topics of the meeting include promoting the innovation and development of Shenzhen Securities Instry and capital market, intelligent trading service of Guoxin GTS, innovative practice of trading technology, big data intelligent operation and maintenance platform, financial technology application of securities companies, etc
China (Shenzhen) fintech forum focuses on the transformation of fintech in the financial instry, shows leading financial technologies and solutions, and helps to build a new financial ecology driven by technology. At that time, there will be wonderful views from domestic and foreign financial technology experts, scholars and entrepreneurs to share< More than 100 doctors, lawyers, accountants, professionals and celebrities from the mainland and Hong Kong will gather to promote the resource sharing economy between the mainland and Hong Kong. Nexchange Hong Kong will also invite experts from Europe, South Korea, Singapore, the UK and other large enterprises to talk about AI, fintech and other topics on the spot
in addition, the banking association will hold a forum on "cross border, integration, responsibility and responsibility" of Shenzhen's banking social responsibility and a press conference on Shenzhen's SME growth index, as well as a seminar on "deepening bank loan cooperation and serving the real economy" ring the exhibition; The World Federation of small and medium enterprises will also announce the establishment of the Preparatory Committee for the International Bill Trading Center (Xi'an) ring this period<
risk ecation
benefits the public
in recent years, Shenzhen gold Expo has attracted many people from both inside and outside the instry to participate in the exhibition, becoming a grand event of the instry. It has repeatedly played a positive role in boosting the innovation and development of Shenzhen's financial instry and in exchanges and cooperation at home and abroad. This not only builds a good communication platform for the real economy and financial institutions, increases the service of the real economy, but also strengthens the financial knowledge and risk ecation of investors to a certain extent<
in view of the common network and telecommunication financial fraud in the society, this golden fair specially invited the Municipal Public Security Bureau to hold a special lecture on "common information fraud techniques and prevention points" to popularize the knowledge of preventing financial fraud to the public. At the same time, there will be many lectures on rational financial management. Financial institutions will publicize financial security to the participants through financial security publicity exhibition and financial security lecture hall, and improve the financial risk prevention level of financial institutions
in view of the occurrence of various risk events such as "black swan" and "grey rhinoceros", the investment fund Union will hold an investor ecation forum on "preventing financial risks and promoting financial reform" ring the exhibition, which will help investors identify "insider trading", "market manipulation" and other capital market violations through special speeches and interactive Q & A; Through typical cases to understand the legal red line and risk bottom line behind, enhance investors' awareness of law-abiding and risk prevention; By popularizing the knowledge of "right to know, right to exercise and right protection", we can improve the awareness and ability of investors to exercise their rights according to law and safeguard their legitimate rights and interests, so as to promote the sound operation and development of the capital market.
China's stock market was tried out in 1989
China's stock market is the stock market of the people's Republic of China. In 1989, it was set up as a pilot project, based on the idea that if you try well, you will go up and if you don't try well, you will stop. Therefore, in the stock market operation before 1995, the biggest bad news is usually the news that the pilot of China's stock market will stop and the stock market will close
later, affected by the "3.27 treasury bond futures incident", China's futures market carried out a comprehensive rectification in 1995, and China's stock market became the object of support, so that the stock market ushered in a real positive and turned into a period of great development
the biggest characteristic of China's stock market is that state-owned shares and corporate shares promise not to circulate when they are listed, so only the circulating shares are traded in the market according to the stock price, but the index is weighted according to the total share capital, thus forming the characteristic of "controlling more with less"
extended information:
stock market trading rules:
t + 1 delivery, t + 1 settlement: both parties complete the receipt and payment of securities and funds related to the transaction on the next day of the transaction, that is, the buyer receives the securities and the seller receives the funds. Both Shanghai Stock Exchange and Shenzhen Stock Exchange in China implement T + 1 settlement for a shares
limit of fluctuation range: in order to restrain excessive speculation and prevent excessive sharp rise and fall in the market, the stock exchange regulates the fluctuation range of the trading price of the day on the basis of the closing price of the previous trading day in daily trading
the Shanghai and Shenzhen stock exchanges have imposed a 10% limit on the rise and fall ST shares and uncompleted s shares are limited to 5% rise and fall)