vr舍得联盟现在还在吗,舍得联盟创始人是谁

VR舍得联盟现在还在吗？这是一个令人担忧的问题。VR舍得联盟是一个由著名游戏设计师及技术专家组成的组织，由著名游戏设计师及技术专家组成的组织。舍得联盟创始人是谁？舍得联盟由游戏开发者、技术专家、设计师和艺术家等组成，由著名游戏设计师及技术专家组成的组织，其创始人是山本耀司（Yoshio Yamamoto）。

VR舍得联盟在虚拟现实技术领域发挥了重要作用，为虚拟现实技术的发展做出了巨大贡献。VR舍得联盟现在还在吗？VR舍得联盟现在仍然存在，但它的活动更多地集中在研究和技术开发上，而不是像以前那样，专注于游戏开发。

VR舍得联盟的成员们积极参与了虚拟现实技术的研究和开发，为虚拟现实技术的发展做出了巨大贡献。VR舍得联盟的贡献？VR舍得联盟的成员们积极参与了虚拟现实技术的研究和开发，他们开发了众多虚拟现实技术，比如虚拟现实头显、虚拟现实游戏、虚拟现实设备等。他们还提出了一系列新的虚拟现实技术，为虚拟现实技术的发展提供了重要支持。

VR舍得联盟为虚拟现实技术的发展做出了巨大贡献，它的成员们积极参与了虚拟现实技术的研究和开发，为虚拟现实技术的发展做出了重要贡献。VR舍得联盟未来的发展趋势？VR舍得联盟未来的发展趋势是致力于研究和开发更先进的虚拟现实技术，并将这些技术应用到游戏、娱乐和教育等领域，为虚拟现实技术的发展提供更多的支持。

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『一』 What are the leading blockchain concept stocks

1.002657 Zhongke Financial

2.300663 Kelan Software

3.002152 Radio and Television Express

4.300079 Digital Technology

5.300542 Xinchen Technology

6.600570 Hang Seng Electronics

7.300561 Huijin Technology< /p>

8.002063 Yuangguang Software

9.603106 Hengyin Financial

The following blockchain concept stocks may become leading stocks:

1. Blockchain Concept Stock 1: Yijian Shares (600093.SH) Concept Stock Index

The company used to be mainly engaged in supply chain management. In recent years, it has been actively transforming. On the one hand, the company strives to improve the company Supply chain management and commercial factoring business scale.

On the other hand, with the realization of financial technology transformation as the center and the application of blockchain technology in supply chain finance as the breakthrough point, the whole strategy is fully promoting the development of the "Yijian Block" system. In the first half of 2017 Having successfully completed the development of the “Yijian Block” system 1.0 and achieved commercial use in the fields of medicine and commodities, Yijian is clearly a practitioner of the blockchain concept.

2. Blockchain concept stock 2: Gao Weida

A leading domestic financial information manufacturer, relying on its own advantages in bank IT solutions and bank customer resources to provide bank IT system cloud Serve.

3. Blockchain Concept Stock 3: Xinchen Technology

The company is currently mainly engaged in application software development business, software and hardware system integration business and professional technical services business. In recent years, Xinchen Technology has been more bold in its attempts at innovation. The company has made certain progress in the application of new technologies such as cloud computing, big data, artificial intelligence, and blockchain in the financial industry.

The domestic letter of credit business system based on blockchain technology has been successfully launched in banks and is expected to gradually become a new growth point for the company's software solutions business.

(1) VR is willing to join the alliance blockchain for further reading:

The leading stock refers to the influence and appeal on other stocks in the same industry sector during the stock market speculation in a certain period. The rise and fall of a powerful stock often guides and sets an example for the rise and fall of other stocks in the same industry sector.

The leading stock is not static, and its status can often only be maintained for a period of time. The basis for becoming a leading stock is that any information related to a certain stock will be immediately reflected in the stock price.

The conditions for leading stocks:

1. Leading stocks must start from the daily limit. The daily limit is the most accurate attack signal for both long and short parties. A stock that cannot reach the daily limit cannot be a leader.

2. The leading stocks are the best low-priced stocks. Low-priced stocks are sought after by many investors, because the speculation in high-priced stocksWorking in space is more difficult and relatively difficult.

3. The circulation market of leading stocks should be moderate, suitable for large capital operations and retail investors chasing ups and downs. Neither large-market stocks nor small-cap stocks can act as leaders.

4. The leading stocks meet the daily KDJ, weekly KDJ, and monthly KDJ at the same time and the low price golden cross.

5. Leading stocks usually go against the trend at the end of a market decline and when the market panics, hit the bottom early, or start before the market, and withstand a round of market decline.

Leading stocks refer to stocks that have influence and appeal on other stocks in the same industry sector during the stock market speculation during a certain period. Its rise and fall often have an impact on the rise and fall of other stocks in the same industry sector. Guidance and demonstration role. Leading stocks are not static, and their status can often only be maintained for a period of time.

Reference materials: Internet-leading stocks

『二』Is Sheshe Entrepreneurship Alliance a scam

It is a big scam. More than one million people have been cheated. There are two founders He has run away, but there is still one person left to appease these silly followers, named Jicheng. There are also blockchain VRT enterprise coins and SKW air coins, and then they make up a beautiful lie to continue to let people invest money in it to buy cards, buy quantitative products, etc. The routine of interlocking is too deep.

『三』 "Decentralization" brings new opportunities, Thunder Link Tok shows more possibilities

With the rapid development of human society, many people have discovered that decentralization is a This trend also represents a new production relationship. This is a new production relationship that is suitable for our current human society, which is highly developed, highly market-oriented, and based on the principles of equality and mutual trust for business or business logic. Since the decentralized trust mechanism - blockchain, many intermediaries will also face upgrades and innovations. Traditional media like "Wall Street", which are essentially financial intermediaries, may soon develop new models.

Decentralization has brought changes far beyond just one financial industry. In the consensus of China's outstanding Internet company "Xunlei", technology is developing from centralization to decentralization. The P2SP download technology they are proud of is a decentralized technology. At that time, , blockchain has not yet been widely recognized. Xunlei believes that decentralized technology has many advantages. Its solution is lightweight and low-cost; it respects privacy, and there is no intermediate database that knows everything; it conforms to the development pattern of society; it is an environmentally friendly sharing measure. In 2014, Xunlei made up its mind to develop decentralized cloud computing, also known as shared computing, which is to distribute computing needs to thousands of households and use users' idle resources.

Such an attempt has received a very good market response, because shared computing has a lower marginal cost than cloud computing, can more effectively solve the social contradiction of tight computing resources and high computing costs, and reduce the cost of enterprises. The operating costs of Xiaomi, iQiyi, and Panda Live have become the Thunder Sharing PlanCalculated customers. In fact, the computing needs of current society are growing explosively. Whether it is artificial intelligence, big data, 4K, VR, the demand for network is getting higher and higher, the speed of computing is getting higher and higher, and the demand for speed is getting higher and higher. , if you want to solve all the requirements, you need to prepare sufficient computing resources. The player reward program was born to solve this urgent need.

The significance of the Wanke Reward Program is that in the shared computing ecosystem, Xunlei has added blockchain technology to those who share bandwidth, storage and computing through Wanke Cloud intelligent hardware. Users with idle resources such as abilities are issued the digital asset LinkToken (formerly Wankebi) based on blockchain technology. This program is free for users to participate in, and users also voluntarily contribute their idle computing resources to society. Users actively contribute idle resources, Xunlei pays LinkToken to reward users, and Xunlei converts the resources into packages and sells them to enterprises. A supply chain based on shared computing is completed. In this process, decentralized blockchain technology plays an important role.

Of course, complete decentralization lacks supervision and there is a certain risk of being exploited. Therefore, the blockchain chosen by LinkToken is a "consortium chain", which is not completely decentralized like Bitcoin and Ethereum. ized public chain. Therefore, Xunlei still has the right to supervise. In order to reduce and avoid the occurrence of evil events by accounting nodes and ensure that user transactions enter the block as soon as possible, Xunlei is more cautious when selecting accounting nodes. In the early stage, it will choose Xunlei's own servers with good network connectivity and strong stability, as well as cooperative Servers with good partner network connectivity and strong stability will be used as accounting nodes. When the performance and security of the next-generation Wanke Cloud hardware are further improved, relatively stable Wanke Cloud nodes distributed in users' homes will be selected as accounting nodes and Constantly changing. At the same time, Xunlei has joined forces with the government to actively crack down on speculation, announcing that it will not ICO, crack down on third-party transactions, and adopt real-name systems, unlimited pre-sale activities and other means to resolutely curb the risk of speculation, thus ensuring the stability of the Wanke Cloud and LinkToken ecology. and persistence.

The emergence of blockchain applications such as LinkToken allows us to see that decentralized technology can make the industry less extreme, and various opportunities will be introduced due to new mechanisms. And when it breaks out, it will have positive significance for both the industry and the entire society.

『四』 Shenzhen develops and expands strategic emerging industry clusters and cultivates and develops future industries

Shenzhen Municipal People’s Government on developing and strengthening strategic emerging industry clusters

Industrial clusters and Opinions on cultivating and developing future industries

1. Development foundation

In recent years, Shenzhen has deeply implemented the innovation-driven development strategy, vigorously promoted the construction of a strong manufacturing city, continued to promote industrial transformation and upgrading, and promoted strategic The development of emerging industries has achieved positive results. Shenzhen's total industrial output value has ranked first in the country for three consecutive years. Four clusters, including new generation information and communications, have been selected as national advanced manufacturing clusters. Three clusters, including new display devices, have been selected as the first batch of national strategic emerging industry clusters.development project, but the problems of unbalanced and inadequate development of the manufacturing industry still exist, the layout of strategic emerging industries needs to be further optimized, the development potential still needs to be further enhanced, and the competitiveness and risk resistance of the industrial chain and supply chain need to be further improved.

The "14th Five-Year Plan" is a critical period for Shenzhen to achieve the first-stage development goal of building a pioneer demonstration zone of socialism with Chinese characteristics. It is also a critical period for Shenzhen to grasp the new round of global technological revolution and industrial transformation trends and enhance the competition of the modern industrial system. an important period of strategic opportunity for China’s strength. Based on the reality of Shenzhen, closely focusing on the construction of a strong service manufacturing country and a strong manufacturing province, developing strategic emerging industries with advanced manufacturing as the main body, and forward-looking layout of future industries, it is important to stabilize the basic market of Shenzhen's manufacturing industry and maintain the added value of manufacturing industry as a share of regional production. The proportion of the total value is basically stable. It is of great significance to enhance the development potential of the real economy and accelerate the construction of a technological and industrial innovation highland with global influence.

II. Overall Requirements

(1) Guiding Ideology

Give full play to the demonstration effects of “dual-zone” drive, “dual-zone” superposition, and “dual-reform” , adhere to the foundation of manufacturing as a city, regard strategic emerging industries as the top priority of the development of the real economy, focus on deepening supply-side structural reform, and solve the "stuck" problem of key core technologies as the core, vigorously develop advanced Manufacturing, intelligent manufacturing, green manufacturing, and service-oriented manufacturing, promote the deep integration of advanced manufacturing and modern service industries, cultivate a number of strategic emerging industry clusters with world-class competitiveness, seize opportunities for future industrial development, and enhance the competitiveness of the modern industrial system , to create a powerful source of power that leads to high-quality development and provide strong support for Shenzhen to build a pioneer demonstration zone of socialism with Chinese characteristics.

(2) Basic principles

Adhere to market leadership and government guidance. Give full play to the decisive role of the market in resource allocation, better play the role of the government, promote the close integration of effective markets and promising governments, strengthen top-level design for industrial development, optimize the industrial development environment, expand effective investment in strategic emerging industries, and continuously stimulate industrial development potential and vitality of market entities.

Adhere to self-reliance, innovation and leadership. Deploy the innovation chain around the industrial chain, lay out the industrial chain around the innovation chain, strengthen original innovation and disruptive technological innovation, strengthen research and development of cutting-edge technologies, increase efforts to tackle key core technologies, and build independent, safe, diversified and controllable industrial and supply chains.

Adhere to systematic advancement and key breakthroughs. Deeply understand the development laws of modern industries, promote the deep integration of strategic emerging industries and advantageous traditional industries, promote the collaborative linkage between the upstream and downstream of the industrial chain, promote the organic connection between the production end and the consumer end, forge long boards and make up for weak points, and achieve industrial echelon development and Overall jump.

Adhere to adapting measures to local conditions and implementing classified policies. Based on regional resource endowments, give play to the comparative advantages of each district, coordinate and optimize the land and spatial layout of the city's strategic emerging industries, promote the construction of industrial clusters with "one group, one policy", and build strategic emerging industries with unique characteristics, staggered development, functional synergy, and complementary advantages. pattern.

(3)Development Goals

By 2025, the added value of strategic emerging industries will exceed 1.5 trillion yuan, becoming the main engine for promoting high-quality economic and social development. Cultivate a group of high-quality leading enterprises with industrial ecological leadership, promote a group of key core technologies to achieve major breakthroughs, build a group of modern advanced manufacturing parks and world-class "lighthouse factories", and form a group of leading emerging industry clusters and networks. The development advantages of industrial clusters with an added value of RMB 100 billion, such as communications, software and information services, smart terminals, ultra-high-definition video displays, new energy, and marine industries, are more prominent. The shortcomings of industries such as semiconductors and integrated circuits, smart sensors, and industrial motherboards are accelerated. Together, the development level of intelligent connected cars, new materials, high-end medical equipment, biomedicine, digital creativity, modern fashion and other industries has been significantly improved, and future industries such as synthetic biology and blockchain have gradually developed into new growth points.

3. Development Focus

(1) Key subdivisions of strategic emerging industries

1. Network and communications industry clusters. Promote the coordinated development of fixed-line communications, mobile communications and satellite communications, strengthen technical research on network communications chips, key components and modules, build national 5G medium and high-frequency device innovation centers, future network test facilities and other major innovation carriers, and launch cutting-edge technology reserves , strengthen the development of industry standards, support Nanshan, Bao'an, Longgang, Longhua and other districts to build agglomeration areas, and create a highland for the innovation and development of the global network and communications industry and a "dual gigabit" and all-optical network benchmark city.

2. Semiconductor and integrated circuit industry cluster. Accelerate the improvement of the industrial chain of integrated circuit design, manufacturing, packaging and testing, carry out EDA tool software, semiconductor materials, high-end chips and special chip design technology research, promote the construction of 12-inch chip production lines, third-generation semiconductors and other key projects, support Futian and Nanshan , Baoan, Longgang, Longhua, Pingshan and other districts will build agglomeration areas to create a national integrated circuit industry gathering place, a gathering place for talents, and a source of innovation.

3. Ultra-high-definition video display industry cluster. Promote the coordinated development of new display devices, panel production, terminal manufacturing and applications, focus on breakthroughs in key common technologies such as 4K/8K video capture devices and equipment, display panel processes and technologies, and core basic materials, lead or participate in the formulation of international standards, and rely on Nanshan, Baoan, Longgang, Guangming and other districts have built full-chain industrial innovation zones and full-scenario "AI 5G 8K" application demonstration pilot zones, striving to build the world's leading ultra-high-definition video display industry.

4. Intelligent terminal industry cluster. Focusing on smart terminal products such as smartphones, personal computers, VR/AR, smart wearable devices, smart cars, and smart home appliances, we will create a complete industrial chain from key core components to high-end complete machine brands, and accelerate application software, core devices, etc. Breakthroughs in key technologies will promote the concentrated development of the intelligent terminal industry in Futian, Luohu, Nanshan, Baoan, Longgang, Longhua, Pingshan and other districts, creating a global mobile phone and new intelligent terminal industry highland.

5. Intelligent sensor industry cluster. Focus on smart sensor design,In manufacturing, packaging and testing, equipment materials and other aspects, accelerate the research on core technologies such as new sensor materials, CMOS-MEMS integration technology and advanced packaging technology, build MEMS pilot lines and MEMS sensor industry bases, and enrich the application of smart sensors in consumer electronics, automotive electronics, Application scenarios in smart cities and other fields will support the construction of agglomeration areas in Nanshan, Longhua, Guangming and other districts to create a smart sensor industry cluster with complete elements.

6. Software and information services industry cluster. Promote key basic software such as operating systems, databases, middleware, office suites, and low-code development platforms and tool software such as CAD, CAE, BIM, and CIM to achieve source innovation, and increase the development and promotion of basic common standards and application demonstration standards. Implement the open source ecological incubation project, promote the in-depth integration of software technology in the manufacturing and service industries, build agglomeration areas based on Futian, Luohu, Nanshan, Baoan, Longgang and other districts to create a competitive software city.

7. Digital creative industry cluster. Vigorously develop sub-industries such as creative design, digital cultural equipment, film and television production, animation and games, create a number of high-quality original digital content works and IP, build a number of digital creative incubation and service platforms with high standards, and accelerate the development of digital creativity and cultural tourism products Integrate public services such as education, support the construction of digital creative industry clusters in Futian, Luohu, Yantian, Nanshan, Baoan, Longgang and other districts, build a "one core, one corridor, multi-center" digital creative industry layout, and create national digital creative industry innovation Development benchmark.

8. Modern fashion industry cluster. Promote the fashion and brand upgrade of advantageous traditional industries such as clothing, furniture, gold jewelry, and watches, strengthen technological research on functional fabrics for clothing, smart chips for furniture, and watch movements, build an Internet platform for the fashion industry and a comprehensive trade platform for jewelry and jade, and cultivate a number of The internationally renowned exhibition supports Luohu, Futian, Nanshan, Baoan, Longhua and other districts, as well as Qianhai Shenzhen-Hong Kong Modern Service Industry Cooperation Zone (hereinafter referred to as Qianhai) to build a cluster area to create an emerging fashion industry highland, an international fashion consumption center city, and an international The exhibition capital.

9. Industrial mother machine industry cluster. Focus on key areas such as CNC machine tools, lithium battery manufacturing equipment, semiconductor manufacturing equipment, and display panel manufacturing equipment, break through the manufacturing technology of key components such as spindles and screw guide rails, strengthen equipment digitalization technology research, and build new display technology intelligent equipment headquarters bases and integration Key projects such as circuit testing equipment R&D and production bases support the construction of cluster areas in Baoan, Longhua and other districts to enhance the basic support capabilities of industrial machines for advanced manufacturing.

10. Intelligent robot industry cluster. Focus on the development of industrial robots, service robots, special robots, drones (ships) and other fields, break through key components and integrated application technologies such as reducers, controllers, and servo systems, and expand the application of intelligent robots in electronic information manufacturing, automobiles, aerospace, etc. and other high-end manufacturing application scenarios, relying on Futian, Nanshan, Baoan, Shenshan and other districts and the Qianhai construction cluster area to create intelligent robot industry technological innovation, high-end manufacturing,Integrated application demonstration area.

11. Laser and additive manufacturing industry cluster. Focus on the development of high-power ultrafast lasers and equipment, additive manufacturing equipment and systems and other industries, increase the localization rate of upstream materials and devices such as special optical fibers, high-power gratings, high-power laser chips, high-performance lasers, and carry out technological research on special equipment , build key projects such as the optoelectronic fiber laser headquarters and R&D center, support Baoan, Longhua, Pingshan and other districts and Qianhai to build agglomeration areas, and consolidate the competitive advantages of the laser and additive manufacturing industries.

12. Precision instrument equipment industry cluster. Focusing on the fields of industrial automation measurement and control instruments and systems, information measurement and electrical measurement instruments, scientific testing and analysis instruments, etc., improve key components and product innovation capabilities such as detectors, sensors, high-end oscilloscopes, spectrum analyzers, etc., and build Shenzhen China's metrological scientific research It has established major innovation carriers such as the Institute of Technology Innovation and the Advanced Testing and High-end Instrument Research Platform to support the construction of cluster areas in Nanshan, Baoan, Longhua, Guangming and other districts to improve the level of localization, intelligence, greenness and service-oriented development of precision instrument manufacturing.

13. New energy industry cluster. Focus on developing subdivided industries such as smart grids, distributed photovoltaics, hydrogen energy, and offshore wind power, strengthen research on key core technologies such as high-efficiency gas turbines, high-energy density energy storage, and fuel cells, promote the implementation of virtual power plants, accelerate the construction of comprehensive energy supply facilities, and rely on Longhua, Longgang and other districts are promoting the construction of digital energy integrated development demonstration zones, international low-carbon cities and Qiuyuling hydrogen energy industrial park to build a clean, low-carbon, safe, efficient, smart and innovative modern energy system.

14. Safety, energy saving and environmental protection industry cluster. Improve the development level of monitoring and early warning technology and equipment, emergency response and rescue technology and equipment, high-efficiency energy-saving technology and equipment, advanced environmental protection equipment and other industries, strengthen the comprehensive utilization of solid waste, vigorously develop the safety, energy-saving and environmental protection service industry, and improve the safety and emergency material production and supply system and green The production and consumption system supports the construction of agglomeration areas in Luohu, Baoan, Longgang, Longhua, Guangming, Shenshan and other districts, providing a solid guarantee for building resilient cities.

15. Intelligent connected automobile industry cluster. Focus on the development of intelligent sensing systems, vehicle computing platforms, vehicle wireless communications, cloud service terminals, power batteries, motor electronic control, fast charging facilities and other subdivisions, and make breakthroughs in key technologies such as sensing equipment, wire-controlled chassis, and intelligent driving operating systems. Build key projects such as the Intelligent Connected Transportation Test Demonstration Platform and the Shenshan Automobile Industrial Park, and build agglomeration areas based on Nanshan, Pingshan, Shenshan and other districts to lead the high-quality development of the intelligent connected automobile industry.

16. New materials industry cluster. Promote the integrated development of new materials with new generation information technology, new energy, biology and other industries, develop electronic information materials, new energy materials, biomedical materials, polymer materials, green building materials, cutting-edge new materials, etc., and promote high-end lithium-ion battery anodes Materials, ultra-high modulus transparent polyimide film engineering project construction, support Luohu, Baoan, Longgang, Guangming, Shenshan and other districts to build agglomeration areas and build new material innovation centers and technology transformation centers.

17. High-end medical device industry cluster. Develop new medical imaging, life monitoring and life support, high-end implant interventional products and other subdivisions, break through major equipment and key components such as high-end imaging systems, surgical robots, new in vitro diagnostic equipment, high-throughput gene sequencers, and give full play to the national The role of high-performance medical device innovation center is to support the construction of cluster areas in Nanshan, Longhua, Pingshan, Guangming and other districts and promote the high-quality development of the high-end medical device industry.

18. Biomedical industry cluster. Support the development of innovative chemical drugs, new dosage forms and high-end preparations, modern traditional Chinese medicine, advanced pharmaceutical equipment, and digital medicine, promote breakthroughs in bottleneck technologies such as research and development of new gene therapy vectors, engineering cell construction, antibody engineering optimization, and artificial intelligence-assisted drug design, and accelerate The construction of projects such as Baolong Biopharmaceutical Innovation and Development Pilot Zone and Pingshan Biopharmaceutical Industry Accelerator Park supports the creation of industrial clusters in Pingshan, Nanshan, Futian, Longgang, Guangming and Dapeng districts, and promotes biopharmaceutical industry clusters to become new highlights in industrial development.

19. Big health industry cluster. Focus on the development of precision medicine, rehabilitation and elderly care, modern agricultural products, medical beauty, cosmetics and other industries, expand the supply of high-quality health products, strengthen technical research on regenerative medical beauty materials, rehabilitation equipment, germplasm resources and gene discovery, and precision drug development, and build a precision Innovation platforms such as nutrition R&D and application platform and health equipment measurement and testing platform support the construction of cluster areas in Luohu, Yantian, Baoan, Pingshan, Dapeng and other districts to promote the innovative development of the comprehensive health industry.

20. Marine industry cluster. Consolidate and enhance the advantages of marine transportation, coastal tourism, marine energy and mining, marine fishery and other industries, cultivate and expand marine engineering and equipment industry, marine electronic information industry, marine biomedicine industry, marine modern service industry and other industries, and promote international The construction of major projects such as the Ocean Development Bank, Shenzhen National Distant Ocean Fishery Base, Ocean New City, and Shekou International Ocean City will take the Shenzhen Western Coast-Eastern Coast-Shenzhen-Shantou Cooperation Zone as the main axis to build a "one axis connected, multi-zone linkage" marine industry region Collaborate to build a global ocean center city.

(2) Key future industrial development directions

1. Synthetic biology. Focus on the development of underlying technologies of synthetic biology, quantitative synthetic biotechnology, biological creation and other fields, accelerate breakthroughs in key creative technologies such as artificial phages and artificial tumor treatment, promote the construction of major scientific and technological infrastructure for synthetic biology, and build synthetic biology R&D bases and industrial innovation centers.

2. Blockchain. Focus on the development of underlying platform technology, blockchain finance, blockchain intelligent manufacturing, blockchain supply chain and other fields, and promote the formation of a number of technical standards and specifications in the fields of technical framework, evaluation system, application specifications, cross-chain interoperability, etc. Create a blockchain innovation leading area.

3. Cells and genes. Focus on the development of cell technology, gene technology, cell and gene therapy technology, biological breeding technology and other fields, and improve the cell and gene drug approval mechanism, regulatory system, and clinical trial incentive mechanism, apply promotion mechanisms to accelerate the construction of cell and gene industry leading areas.

4. Aerospace technology. Focus on the development of aerospace information technology, advanced remote sensing technology, navigation and positioning technology, aerospace equipment manufacturing and other fields, promote technological innovation in aerospace materials and components, drones, satellites, etc., and plan to build a leading domestic aerospace technology industry R&D and manufacturing base.

5. Brain science and brain-like intelligence. Focus on the development of brain mapping technology, brain diagnosis and treatment technology, brain-like intelligence and other fields, carry out basic theoretical research and cutting-edge technology development of brain-like algorithms, promote the construction of major scientific and technological infrastructure for brain analysis and brain simulation, and seize the commanding heights of development in the field of brain science.

6. Deep earth and deep sea. Focus on the development and utilization of deep-earth mineral and geothermal resources, urban underground space development and utilization, deep-sea high-end equipment, deep-sea intelligent sensing, deep-sea information and other fields, promote the construction of major projects such as the National Deep-sea Scientific Research Center and Ocean University, and create deep-earth and deep-sea technological innovation Highlands.

7. Visible light communication and optical computing. Focus on the development of visible light communication technology, optical computing technology and other fields, promote the establishment of a visible light communication standardization system, lay out a number of high-value patents, promote the application demonstration of visible light communication technology and optical computing technology, and cultivate visible light communication technology and application innovation industry clusters.

8. Quantum information. Focus on the development of quantum computing, quantum communications, quantum measurement and other fields, build first-class R&D platforms, open source platforms and standardized public service platforms, and promote breakthroughs in quantum operating systems, quantum cloud computing, medium-scale quantum processors containing noise, etc. Build a quantum science center in the Guangdong-Hong Kong-Macao Greater Bay Area.

IV. Safeguard Measures

(1) Establish a "Six Ones" working system. Improve the "chain length system" of key industrial chains, and insist that one industrial cluster corresponds to a list of leading companies and "hidden champion" companies, a list of investment attractions, a list of key investment projects, a set of scientific and technological innovation systems, and a policy tool kit , a strategic consulting support organization, gradually realizes "one cluster, one fund, one exhibition, one forum, one association, one alliance, one team", achieving the responsibility of specialists and wall-chart operations to accurately and efficiently promote the clustered development of strategic emerging industries.

(2) Improve the industrial space security system. Adhering to concentration, contiguousness, intensive economy, and highlighting high-end advanced manufacturing, we plan to build 20 advanced manufacturing parks with a total area of ​​about 300 square kilometers in Bao'an, Guangming, Longhua, Longgang, Pingshan, Shenshan and other districts to form a "start-up area, The spatial gradient system of "expansion area and reserve area" will be intensified, the park's contiguous land preparation efforts will be intensified, regional ecological environment assessment will be implemented, and a number of customized factories will be built to provide solid spatial guarantee for the development of strategic emerging industries.

(3) Improve the cultivation system of market entities. Implement the "30 Articles" to cultivate and strengthen market entities, promote "individual-to-enterprise transfer", "small-scale upgrading", "standardization and refinement" and "excellent listing", implement the "Xingyao Pengcheng" plan for enterprise listing development, cultivate and strengthen national high-tech enterprises, Create a group of national-level specialized and new “little giant” enterprises and vigorouslyCultivate "unicorn" companies and form a group of "hidden champion" companies, innovation leaders, and future emerging companies that focus on strategic emerging industry clusters.

(4) Innovate the fiscal and financial support system. Actively explore diversified and professional financial support for the development of strategic emerging industries, give full play to the guiding role of fiscal funds, optimize the structure of existing funds, open up channels for industrial funds at the municipal and district levels, strengthen the synergy between industrial special funds and guidance funds, and enhance The fund management team has a professional level to achieve "one industry cluster, one special fund", build an international venture capital and venture capital center, and leverage more social capital to participate in the construction of strategic emerging industry clusters.

(5) Strengthen the innovation support system. Give full play to the overall effect of the entire innovation ecological chain, focus on strategic emerging industry clusters and future industrial development needs, promote the in-depth integration of government, industry, academia and research, make forward-looking plans to build a number of concept verification centers, small and pilot bases, and public technical service platforms to accelerate high-tech We will strengthen the construction of high-level universities and disciplines, increase the training and introduction of strategic scientists, leading scientific and technological talents, young scientific and technological talents, outstanding engineers and other talents, and provide strong scientific and technological and talent support for the construction of industrial clusters.

(6) Build an urban linkage promotion system. Strengthen organizational leadership for the construction of industrial clusters, formulate and introduce strategic emerging industry clusters and future industry action plans, and accelerate the development of industrial clusters in accordance with the principle of "five-year planning, three-year rolling, and annual plans", and cities and districts will jointly carry out targeted investment promotion, Industry chain investment, business investment. Improve the statistical monitoring system, update industry reports every six months on a rolling basis that reflect the world's industrial development trends and the city's advancement results, and timely summarize and promote experience and practices.

Source: Shenzhen release

『五』What is computer virtual reality after upgrading

1. Cloud computing
Cloud computing is a kind of application-based A pay-as-you-go model provides available, convenient, on-demand network access and a configurable shared pool of computing resources (resources include networks, servers, storage, application software, and services) that can be quickly provided , requiring minimal management effort or minimal interaction with service providers.
1. In cloud computing, the basic service types include: Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Service (SaaS).
2. Classification of cloud computing: public cloud, private cloud and hybrid cloud.
2. Big Data
1. Wikipedia’s definition of big data: Big data refers to the technology of extracting and analyzing effective information from massive data that is too large to be processed by traditional technologies. field.

2. The Internet’s definition of big data: Big data refers to a collection of data that cannot be captured, managed, and processed within a certain time range using conventional software tools.

3. The 4V characteristics of big data: Volume (Volume), Velocity (Velocity), Diversity (Variety), value (Value).

4. Big data has four basic characteristics: huge data volume, various data types, fast processing speed and low value density.

5. The development of the Internet and the Internet of Things is the data foundation that emerges in the era of big data.
3. Internet of Things
1. The English name of the Internet of Things (IOT) is The Internet of Things, which is the "Internet of things connected" through the use of RFID sensors, infrared sensors, global positioning systems, Information collection equipment such as laser scanners, according to the agreed protocol, connects any item to the Internet for information exchange and communication to achieve intelligent identification, positioning, tracking, monitoring and management.
2. The core of the Internet of Things is still the Internet, which is an extension and expansion based on the Internet.
3. The Internet of Things includes a variety of different communication modes, such as thing-to-people communication, thing-to-thing communication, machine-to-machine communication (M2M), etc.
4. The architecture of the Internet of Things is divided into four layers: perception layer, network layer, service management layer and application layer.
4. Blockchain
1. Blockchain is a decentralized, trustless and non-tamperable distributed ledger technology.
2. Blockchain includes public chain, private chain and alliance chain.

3. The concept of blockchain originated from Bitcoin. Bitcoin was launched in 2008 and became the first "crystal" of blockchain applications. Starting from Bitcoin, blockchain has experienced three major application eras: programmable currency, programmable finance, and programmable society.

4. Characteristics of blockchain:
(1) Decentralization
(2) Immutability
(3) Traceability
(4) Trustlessness
(5) Anonymity

(6) Open consensus
5. Virtual reality
1. Virtual reality (VR) is a Computer simulation is used to generate a virtual three-dimensional world, providing users with simulations of vision, touch, smell and other senses, allowing users to instantly perceive and interact with the virtual world.
2. Virtual reality technology is an advanced computer human-computer interface with immersion, interactivity, imagination and multi-perception as its basic characteristics. It is a comprehensive technology.
3. Augmented reality (AR) technology is a technology that cleverly integrates virtual information with the real world. It widely uses multimedia, three-dimensional modeling, real-time tracking and registration, intelligent interaction, sensing and other technical means. , after simulating computer-generated virtual information such as text, images, three-dimensional models, music videos, etc., and applying it to the real world, the two types of information complement each other to achieve enhancement of the real world.
4. From the perspective of a computer system, a typical virtual reality system mainly consists of a computer, input and output devices, and VR software.and database. Commonly used interactive devices include data gloves for gesture input, three-dimensional sound systems for voice interaction, and helmet displays for stereoscopic visual output.

『Lu』 108 knowledge points for getting started with blockchain

1. What is blockchain

Combine the information of multiple transactions and indicate the area The information of the block is packaged together, and the verified package is the block.

Each block stores the hash value of the previous block, creating a relationship between blocks, that is to say, a chain. Together they are called blockchain.

2. What is Bitcoin

The concept of Bitcoin was proposed by Satoshi Nakamoto in 2009, with a total number of 21 million. The Bitcoin chain generates a block approximately every 10 minutes, and this block is mined by miners for 10 minutes. As a reward to miners, a certain number of Bitcoins will be issued to miners, but this certain number is halved every four years. Now it's 12.5. If this continues, all Bitcoins will be available in 2040.

3. What is Ethereum

The biggest difference between Ethereum and Bitcoin is the smart contract. This allows developers to develop and run various applications on it.

4. Distributed ledger

It is a database that is shared, replicated and synchronized among network members. To put it bluntly, all users on the blockchain have accounting functions and the content is consistent, which ensures that the data cannot be tampered with.

5. What is quasi-anonymity?

I believe everyone has a wallet, and the wallet address (a string of characters) used to send transactions is quasi-anonymity.

6. What is open transparency/traceability

The blockchain stores all data from history to the present, anyone can view it, and can also view any data in history.

7. What is tamper-proof

Historical data and current transaction data cannot be tampered with. The data is stored in the block on the chain and has a hash value. If the block information is modified, its hash value will also change, and the hash values ​​of all blocks following it must also be modified to form a new chain. At the same time, the main chain is still conducting transactions to generate blocks. The modified chain must always generate blocks synchronously with the main chain to ensure that the length of the chain is the same. The cost is too high, just to modify a piece of data.

8. What is anti-DDoS attack

DDoS: Hackers control many people’s computers or mobile phones and allow them to access a website at the same time. Since the bandwidth of the server is limited, a large amount of traffic The influx ofunable to work properly and thus suffer losses. However, the blockchain is distributed and there is no central server. If one node fails, other nodes will not be affected. Theoretically, if more than 51% of the nodes are attacked, problems will occur.

9. Definition of main chain

Taking Bitcoin as an example, at a certain point in time, a block is mined by two miners at the same time, and then 6 blocks are generated first. The chain of blocks is the main chain

10. Single chain/multi-chain

Single chain refers to the data structure that handles everything on one chain. The core essence of the multi-chain structure is composed of public chain + N sub-chains. There is only one, but in theory there can be countless sub-chains, and each sub-chain can run one or more DAPP systems

11. Public chain/alliance chain/private chain

Public Chain: Everyone can participate in the blockchain

Alliance chain: Only alliance members are allowed to participate in accounting and query

Private chain: Writing and viewing permissions are only controlled by one person In the hands of the organization.

12. Consensus layer, data layer, etc.

There are six overall structures of the blockchain: data layer, network layer, consensus layer, incentive layer, contract layer, and application layer. Data layer: a layer that records data, belonging to the underlying technology; network layer: a structure for building a blockchain network, which determines how users are organized. Consensus layer: Provides a set of rules to allow everyone to reach agreement on the information received and stored. Incentive layer: Design incentive policies to encourage users to participate in the blockchain ecosystem; Contract layer: Generally referred to as "smart contracts", it is a set of contract systems that can be automatically executed and written according to their own needs. Application layer: Applications on the blockchain, similar to mobile apps. Former Distributed Storage R&D Center

13. Timestamp

The timestamp refers to January 1, 1970 Day 0 hours 0 minutes 0 seconds 0... The total number of seconds from the current time to now, or the total number of nanoseconds and other very large numbers. Each block is generated with a timestamp indicating when the block was generated.

14. Block/block header/block body

Block is the basic unit of blockchain, and block header and block body are components of blockchain. The information contained in the block header includes the hash of the previous block, the hash of this block, timestamp, etc. The block body is the detailed data in the block.

15. Merkle tree

Merkle tree, also called binary tree, is a data structure for storing data. The bottom layer is the original data contained in all blocks, and the upper layer is each The hash value of a block, the hash of this layer is combined in pairs to generate a new hash value, forming a new layer, and then layer by layerGo up, - until a hash value is generated. Such a structure can be used to quickly compare large amounts of data, and you can quickly find the bottom-level historical data you want without downloading all the data.

16. What is expansion?

The size of a Bitcoin block is about 1M and can save 4,000 transaction records. Expansion means making the block larger so that more data can be stored.

17. What is a chain?

Each block will save the hash of the previous block, creating a relationship between the blocks. This relationship is a chain. Data such as block transaction records and status changes are stored through this chain.

18. Block height

This is not the height mentioned in terms of distance. It refers to the total number of blocks between the block and the first block on the chain. This height indicates which block it is, and is just for identification purposes.

19. Fork

Two blocks were generated at the same time (the transaction information in the block is the same, but the hash value of the block is different), and then in Two chains are forked from these two blocks. Whoever generates 6 blocks from these two links first will be the main chain, and the other chain will be discarded.

20. Ghost Protocol

Mining pools with high computing power can easily generate blocks faster than mining machines with low computing power, resulting in most of the blocks on the blockchain being generated by these mining pools with high computing power. However, the blocks generated by mining machines with low computing power are not stored on the chain because they are slow, and these blocks will be invalid.

The ghost protocol allows blocks that should be invalidated to remain on the chain for a short time, and can also be used as part of the proof of work

. In this way, miners with small computing power will contribute more to the main chain, and large mining pools will not be able to monopolize the confirmation of new blocks.

21. Orphan block

As mentioned before, orphan blocks are blocks generated at the same time. One of them forms a chain, and the other does not form a chain. Then this block that does not form a chain is called an orphan block.

22. Uncle block

The orphan block mentioned above, through the ghost protocol, makes it part of the proof of work, then it will not be discarded and will be saved in the main chain superior. This block is the next

23 replay attack

The hacker resends the message that has been sent to the server. Sometimes this can deceive the server into responding multiple times.

24. Directed acyclic graph

Also called data set DAG (directed acyclic graph), DAG is an ideal multi-chain data structure. Most of the blockchains mentioned now are single chains, that is, one block is connected to another block, and DAG is multiple blocks connected. The advantage is that several blocks can be generated at the same time, so the network can process a large number of transactions at the same time, and the throughput will definitely increase. However, there are many shortcomings and it is currently in the research stage.

25. What is mining

The mining process is to perform a series of conversions, connections and hash operations on the above six fields, and continue to try them one by one. The random number you are looking for, and finally successfully find a random number that meets the conditions: the value after hashing is smaller than the hash value of the preset difficulty value, then the mining is successful, and the node can broadcast the area to neighboring nodes. block, neighboring nodes receive the block and perform the same operation on the above six fields to verify compliance, and then forward it to other nodes. Other nodes also use the same algorithm to verify. If there are 51% of nodes in the entire network If all verifications are successful, even if this block is truly "mined" successfully, each node will add this block to the end of the previous block, delete the list in the block that is the same as its own record, and resurrect again. the above process. Another thing to mention is that regardless of whether the mining is successful or not, each node will pre-record the reward of 50 Bitcoins and the handling fees of all transactions (total input-total output) in the first item of the transaction list (this is " The most fundamental purpose of "mining" is also the fundamental reason to ensure the long-term stable operation of the blockchain), the output address is the address of this node, but if the mining is unsuccessful, the transaction will be invalidated without any reward. Moreover, this transaction called "production transaction" does not participate in the "mining" calculation.

26. Mining machines/mining farms

Mining machines are computers with various configurations, and computing power is the biggest difference between them. A place where mining machines are concentrated in one place is a mining farm

27. Mining pool

Miners join together to form a team, and the computer group under this team is a mining pool. Mining rewards are distributed based on your own computing power contribution.

28. Mining difficulty and computing power

Mining difficulty is to ensure that the interval between generating blocks is stable within a certain short time, such as Bitcoin’s 10 minutes.

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Block 1. Computing power is the configuration of the mining machine.

29. Verification

When verification in the blockchain is a confirmation of the legality of the transaction, each node will verify the transaction once when the transaction message is propagated between nodes. Whether the transaction is legal. For example, verify whether the syntax of the transaction is correct, whether the transaction amount is greater than 0, whether the entered transaction amount is reasonable, etc. After passing the verification, it will be packaged and handed over to the miners for mining.

30. Transaction broadcast

This node communicates to other nodesSend information over the network.

31. Mining fees

For the blockchain to work non-stop like a perpetual motion machine, miners need to maintain the system. Therefore, the miners must be given favorable fees to make it sustainable.

32. Transaction confirmation

When a transaction occurs, the block recording the transaction will be confirmed for the first time, and will be confirmed in every area on the chain after the block. Block is reconfirmed: When the number of confirmations reaches 6 or more, the transaction is generally considered safe and difficult to tamper with.

33. Double transaction

That is, I have 10 yuan, I use the 10 yuan to buy a pack of cigarettes, and then instantly use the 10 yuan that has not yet been paid. Bought another cup of coffee. So when verifying the transaction, you need to confirm whether the 10 yuan has been spent.

34. UTXO unspent transaction output

It is a data structure containing transaction data and execution code, which can be understood as digital currency that exists but has not yet been consumed.

35. Transactions per second TPS

That is throughput, tps refers to the number of transactions the system can process per second.

36. Wallet

Similar to Alipay, it is used to store digital currencies, and blockchain technology is more secure.

37. Cold wallet/hot wallet

A cold wallet is an offline wallet. The principle is to store it locally and use QR code communication to prevent the private key from touching the Internet. A hot wallet is an online wallet. The principle is to encrypt the private key and store it on the server. When it is needed, it is downloaded from the server and decrypted on the browser side.

38. Software Wallet/Hardware Wallet

A software wallet is a computer program. Generally speaking, a software wallet is a program that interacts with the blockchain and allows users to receive, store, and send digital currencies and can store multiple keys. Hardware wallets are smart devices that specialize in handling digital currencies.

39. Airdrop

The project sends digital currency to each user’s wallet address.

40. Mapping

Mapping is related to the issuance of blockchain currency and is a mapping between chains. For example, there are some blockchain companies that have not completed the development of the chain in the early stage. They rely on Ethereum to issue their own currency. The issuance and transactions of the early currency are all operated on Ethereum. With the development of the company, the company's own chain development has been completed. The company wants to map all the previous information on Ethereum to its own chain. This process is mapping.

41. Position

Refers to the actual position of the investorThe ratio of invested and actual invested funds

42. Full position

All funds are bought in Bitcoin

43. Reduce the position

Sell some of the Bitcoins, but not all of them

44. Heavy positions

Compared with Bitcoin, Bitcoin accounts for a larger share of funds

45. Short position

Compared with Bitcoin, the share of funds is larger

46. Short position

Sell all the Bitcoins you hold and convert them all into funds.

47. Stop loss

After obtaining a certain profit, sell the Bitcoin held to keep the profit

48. Stop loss

After losses reach a certain level, sell the Bitcoins you hold to prevent further losses

49. Bull market

Prices continue to rise and the outlook is optimistic

50. Bear market

Prices continue to fall, and the outlook is bleak

51. Long (long)

The buyer believes that the currency price will rise in the future, buys the currency, and waits for the currency price After rising, sell at a high price to take profits

52. Short position (short selling)

The seller believes that the currency price will fall in the future, and sells the currency he holds (or borrows it from the trading platform) (coin) sell, wait for the price of the currency to fall, buy at a low price to take profits

53. Open a position

Buy virtual currencies such as Bitcoin

54 . Cover the position

Buy Bitcoin and other virtual currencies in batches, for example: buy 1 BTC first, and then buy 1 BTC later

55. Full position

All funds are purchased at one time to buy a certain virtual currency

56. Rebound

When the currency price falls, the price rebounds and adjusts because it falls too fast

57 .Consolidation (sideways)

The price fluctuation is small and the currency price is stable

58. Yin fall

The currency price declines slowly

59. Diving (waterfall)

The currency price fell rapidly and to a large extent

60. Cutting meat

After buying Bitcoin, the currency price fell, as Avoid expanding losses and selling Bitcoin at a loss. Or after borrowing the currency to go short, the price of the currency rises and you buy Bitcoin at a loss

61. Hold-up

Expect the currency price to rise, but unexpectedly the currency price falls after buying; or expect the currency price to fall, but unexpectedly the currency price rises after selling

62. Unwinding

After buying Bitcoin, the currency price fell, causing temporary book losses, but then the currency price rebounded, turning losses into profits

63. Going short

After selling Bitcoin because of the bearish market outlook, the price of the currency continued to rise. I was unable to buy it in time, so I failed to make a profit

64. Overbought

Coin price If the currency price continues to rise to a certain low, the buyer's power is basically exhausted, and the currency price is about to fall

65. Oversold

The currency price continues to fall to a certain low, the seller's power is basically exhausted, and the currency price is about to fall. The price is about to rise

66. Lure bulls

The currency price has been consolidating for a long time and is more likely to fall. Most of the short sellers have sold Bitcoin, and suddenly the short side pulls the currency price higher. Lure the bulls into thinking that the price of the currency will rise and buy them one after another. As a result, the bears suppress the price of the currency and make the bulls locked up

67. Short-spurring

After the bulls buy Bitcoin, they deliberately Suppressing the currency price makes short sellers think that the currency price will fall and sell them one after another. As a result, they fall into the trap of bulls

68. What is NFT

The full name of NFT is "Non-Fungible Tokens", which is non-fungible tokens. Simply put, it is an indivisible copyright certificate on the blockchain. It is mainly used to confirm and transfer digital assets. The difference from digital currency is that , it is unique, indivisible, and essentially a unique digital asset.

69. What is the Metaverse

The Metaverse is a collection of virtual time and space, consisting of a series of augmented reality (AR), virtual reality (VR) and the Internet (Internet) Composed of digital currency, which carries the function of value transfer in this world.

70. What is DeFi

DeFi, the full name is Decentralized Finance, which is "decentralized finance" or "distributed finance". "Decentralized finance", as opposed to traditional centralized finance, refers to various financial applications based on open decentralized networks. The goal is to establish a multi-level financial system based on blockchain technology and cryptocurrency. As a basis, re-create and improve the existing financial system

71. Who is Satoshi Nakamoto?

72. Bitcoin and Q Coin are different

Bitcoin isA decentralized digital asset with no issuing entity. Q Coin is an electronic currency issued by Tencent. It is similar to electronic points, but it is not actually a currency. Q Coin requires a centralized issuing institution. Q Coin can only be recognized and used because of the credit endorsement of Tencent. The scope of use is also limited to Tencent's games and services. The value of Q coins is entirely based on people's trust in Tencent.

Bitcoin is not issued through a centralized institution, but it is widely recognized around the world because Bitcoin can self-certify its trust. The issuance and circulation of Bitcoin are jointly accounted for by miners across the entire network, and are not A central authority is also needed to ensure that no one can tamper with the ledger.

73. What is a mining machine?

Taking Bitcoin as an example, a Bitcoin mining machine is a professional equipment that competes for accounting rights by running a large amount of calculations to obtain new Bitcoin rewards. It is generally composed of a mining chip, a heat sink and a fan, and only performs A single calculation program consumes a lot of power. Mining is actually a competition between miners for computing power. Miners with more computing power have a greater probability of mining Bitcoin. As the computing power of the entire network increases, it becomes increasingly difficult to mine bits with traditional equipment (CPU, GPU), and people have developed chips specifically for mining. The chip is the core part of the mining machine. The operation of the chip will generate a large amount of heat. In order to dissipate heat, Bitcoin mining machines are generally equipped with heat sinks and fans. Users download Bitcoin mining software on their computers, use the software to assign tasks to each mining machine, and then start mining. Each currency has a different algorithm and requires different mining machines.

74. What is quantitative trading?

Quantitative trading, sometimes also called automated trading, refers to the use of advanced mathematical models to replace human subjective judgments, which greatly reduces the impact of investor sentiment fluctuations and avoids extreme fanaticism or pessimism in the market. make irrational investment decisions. There are many types of quantitative trading, including cross-platform trading, trend trading, hedging, etc. Cross-platform trading means that when the price difference between different target platforms reaches a certain amount, sell on the platform with a higher price and buy on the platform with a lower price.

75. Blockchain asset over-the-counter trading

Over-the-counter trading is also called OTC trading. Users need to find their own counterparties and do not need to match the transaction. The transaction price is determined by negotiation between the two parties. The two parties can fully communicate through face-to-face negotiation or telephone communication.

76. What is a timestamp?

The blockchain ensures that each block is connected sequentially through timestamps. Timestamps enable every piece of data on the blockchain to have a time stamp. Simply put, timestamps prove when something happened on the blockchain and cannot be tampered with by anyone.

77. What is a blockchain fork?

Upgrading software in a centralized system is very simple. Click onJust click "Upgrade". However, in decentralized systems such as blockchain, "upgrading" is not that simple, and a disagreement may even cause a blockchain fork. Simply put, a fork refers to a disagreement when the blockchain is "upgraded", resulting in a fork in the blockchain. Because there is no centralized organization, every code upgrade of digital assets such as Bitcoin needs to be unanimously recognized by the Bitcoin community. If the Bitcoin community cannot reach an agreement, the blockchain is likely to form a fork.

78. Soft fork and hard fork

Hard fork means that when the Bitcoin code changes, the old nodes refuse to accept the blocks created by the new nodes. Blocks that do not comply with the original rules will be ignored, and miners will follow the original rules and create new blocks after the last block they verified. A soft fork means that old nodes are not aware of the changes to the Bitcoin code and continue to accept blocks created by new nodes. Miners may work on blocks they have no understanding of, or validation of. Both soft forks and hard forks are "backwards compatible" to ensure that new nodes can verify the blockchain from scratch. Backward compatibility means that new software accepts data or code generated by old software. For example, Windows 10 can run Windows XP applications. Soft forks can also be "forward compatible".

79. Classification and application of blockchain projects

Judging from the current mainstream blockchain projects, blockchain projects mainly fall into four categories: Category 1: Currency; The second category: platform category; the third category: application category; the fourth category: asset tokenization.

80. USDT against the US dollar

USDT is Tether USD, a token launched by Tether that is against the US dollar (USD). 1USDT=1 US dollar, users can use USDT and USD for 1:1 exchange at any time. Tether implements a 1:1 reserve guarantee system, that is, each USDT token will have a reserve guarantee of 1 US dollar, which supports the stability of the USDT price. The unit price of a certain digital asset is USDT, which is equivalent to its unit price in US dollars (USD).

81. Altcoins and alternative coins

Altcoins refer to blockchain assets that use the Bitcoin code as a template and make some modifications to its underlying technology blockchain, among which Those with technological innovations or improvements are also called alternative coins. Because the Bitcoin code is open source, the cost of plagiarism in Bitcoin is very low. You can even generate a brand new blockchain by simply copying the Bitcoin code and modifying some parameters.

82. Three major exchanges

Binance: https://accounts.binancezh.ac/zh-CN

Okex: https://www .ouyi.top/

Huobi: https://www.huobi.af/zh-cn

83. Market software

Mytoken: http:/ /www.mytoken.com/

Non-small account: https://www.feixiaohao.co/

84. Information website

Babbitt: https ://www.8btc.cn

Golden Finance: http://www.jinse.com/

Coin World News: http://www.bishijie.com

85. Blockchain Explorer

BTC: https://btc.com/

ETH: https://etherscan.io/

BCH: https://blockchair.com/bitcoin-cash/blocks

LTC: http://www.qukuai.com/search/ltc

ETC: https ://gastracker.io/

86. Wallet

Imtoken: https://imatoken.net/

Bitpie: https://bitpie. com/

87. Decentralized exchange

uniswap: https://uniswap.org

88. NFT Exchange

Opensea: https://opensea.io

Super Rare: https://superrare.com/

89. Ladder< /p>

Bring your own, buy a reliable ladder

90. Platform currency

Digital currency issued by the platform, used to deduct handling fees, transactions, etc.

91. Bull market, bear market

Bull market: rising market

Bear market: falling market

92. Blockchain 1.0

A currency trading system based on distributed ledgers, represented by Bitcoin

93. Blockchain 2.0

The contract blockchain technology represented by Ethereum (smart contract) is 2.0

94. Blockchain 3.0

In the era of intelligent Internet of Things, it goes beyond the financial field to provide decentralized solutions for various industries

95. Smart Contract

Smart Contract is a computer protocol designed to disseminate, verify or execute contracts in an information-based manner. Simply put, an electronic contract is set in advance and once both parties confirm, the contract is automatically executed.

96. What is a token?

The token economy is an economic system with Token as the only reference standard, which is equivalent to a pass. If you own Token, you have rights and interests, and you have the right to speak.

Big data is the means of production, AI is the new productivity, and blockchain is the new production relationship. Big data refers to a collection of data that cannot be captured, managed and processed within a certain time range using conventional software tools. It is a massive, high-growth and high-volume data set that requires new processing models to have stronger decision-making power, insight discovery and process optimization capabilities. Diverse information assets. Simply understood, big data is massive data accumulated over a long period of time and cannot be obtained in the short term. Blockchain can be used as a way to obtain big data, but it cannot replace big data. Big data is only used as a medium running in the blockchain and has no absolute technical performance, so the two cannot be confused. (A simple understanding of production relations is labor exchange and consumption relations. The core lies in productivity, and the core of productivity lies in production tools)

ICO, Initial Coin Offering, initial public token issuance, is the first step in the blockchain digital currency industry. Crowdfunding. It is the most popular topic and investment trend in 2017, and the country launched a regulatory plan on September 4. Speaking of ICO, people will think of IPO, and the two are fundamentally different.

99. Five characteristics of digital currency

The first characteristic: decentralization

The second characteristic: having open source code

The third feature: independent electronic wallet

The fourth feature: constant issuance

The fifth feature: global circulation

100. What is decentralization?

It has no issuer, does not belong to any institution or country, and is a publicly issued currency designed, developed and stored on the Internet by Internet network experts.

100. What is measurement?(scarcity)?

Once the total amount of issuance is set, it is permanently fixed, cannot be changed, cannot be over-issued at will, and is subject to global Internet supervision. Although the difficulty of mining and mining changes over time, the longer the time, the greater the difficulty of mining and the fewer coins that are mined, so it is scarce.

101. What is open source code?

The alphanumeric code is stored on the Internet. Anyone can find out the source code of its design, everyone can participate, can mine it, and it is open to the world.

102. What is anonymous transaction? Private wallet private?

Everyone can register and download the wallet online without real-name authentication. It is completely composed of encrypted digital codes. It can be sent and traded globally in real-time point-to-point without resorting to banks or any institutions. It cannot be traced by anyone without my authorization. ,Inquire.

A contract transaction refers to an agreement between a buyer and seller to receive a certain amount of an asset at a specified price at a certain time in the future. The objects of contract trading are standardized contracts formulated by the exchange. The exchange stipulates standardized information such as commodity type, transaction time, quantity, etc. A contract represents the rights and obligations of the buyer and seller.

105. Digital Currency Industry Chain

Chip manufacturers, mining machine manufacturers, and mining machine agents mine and export to exchanges for retail investors to speculate in coins< /p>

106. Who is Erben?

Erben: Digital Currency Value Investor

Investment style: Steady

Building a community: Erben’s Miscellaneous Talks (High Quality Price Investment Community)

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107. Two investment strategies

Combining long and short term, focusing on price investment, no contracts, no short-term play

Reasonable layout, scientific operation, prudent and conservative, making periodic money

108. Two books?

Welcome currency friends and seek common development

『撒』 What is blockchain and what is big data

1. Blockchain: it is distributed New application models of computer technologies such as data storage, point-to-point transmission, consensus mechanisms, and encryption algorithms. The so-called consensus mechanism is a mathematical algorithm that establishes trust and obtains rights and interests between different nodes in the blockchain system.

Blockchain is an important concept of Bitcoin. The currency is jointly developed by Tsinghua University PBC School of Finance and Internet FinanceThe "2014-2016 Global Bitcoin Development Research Report" released by Rong Lab and Sina Technology mentioned that blockchain is the underlying technology and infrastructure of Bitcoin [2]. It is essentially a decentralized database and serves as the underlying technology of Bitcoin. The blockchain is a series of data blocks generated using cryptographic methods. Each data block contains information about a Bitcoin network transaction and is used to verify the validity of its information (anti-counterfeiting) and generate the next block.

2. Big data: refers to a collection of data that cannot be captured, managed and processed within a certain time range using conventional software tools. It requires new processing models to have stronger capabilities. Massive, high-growth and diversified information assets with decision-making power, insight discovery and process optimization capabilities.

『8』 Has Jicheng Technology Co., Ltd. been shut down by the police now?

My sister is also a victim. She lost millions and went to jail. I really don’t understand why my sister wants to let her go. Relatives sold the house without losing money to repay their money, but they ended up going in, but there are also people who make money. Those people are smarter and work early and leave early