Beijing Capital Financial Association blockchain branch

1. There should be no big blockchain meeting in Beijing on October 27. However, there was a science and Technology Finance Conference on blockchain in Shanghai on October 27 and 28

the participating enterprises or teams include Wanda, decent, sesame credit, latte finance, bitcoin China, etc.

2. Yingchi Hall of fame is the top non-public graphics card. Although the time of silent frequency is similar to 1060, the ability of overclocking is much stronger than 1060. The official power consumption is 165W, while 1060 is 120W. After overclocking, the power consumption will be higher. Pay attention to whether the power supply is enough. The price of 900 yuan can be bought, but please note that if you play a stand-alone game, it may explode in some games. As for mining, so to speak, there is no ore card in the 9 series, and the N card mining was started on a large scale in the 10 series. It may have been before, but it's too few. Before the 10 series, they used to dig with a-card.

3. Our company specially designed a cobalt ore powder dryer, professional drying lead powder, gypsum powder, manganese ore powder, nickel ore powder, cobalt ore powder, tin ore powder, mercury ore powder, silicon carbide powder, rare earth ore dryer<

cobalt ore powder drying machine drying cobalt ore powder:
cobalt ore usually does not exist as a separate deposit, most of which are scattered in skarn type iron ore, hydrothermal polymetallic ore, various types of copper ore, sedimentary cobalt manganese ore, copper nickel sulfide ore, nickel silicate ore and other deposits, with low grade but large scale, which is the main source of cobalt extraction. Therefore, cobalt ore powder is usually accompanied by gypsum powder, lead concentrate powder, manganese ore powder, nickel ore powder, tin ore powder, mercury ore powder, silicon carbide powder, etc. while drying, tin ore, mercury ore powder, silicon carbide powder, manganese ore powder can also be dried< Application of BR />
lead fine powder drier in mineral processing technology:
lead concentrate powder dryer is the main equipment for drying lead concentrates. Lead concentrates pass through the crushing of jaw crusher or hammer crusher, grinding of ball mills, froth flotation of flotation machines, and then drying by lead powder drying machine to achieve the national standard of lead concentrate. The main composition of lead concentrate powder is 40-70% according to the proct grade.

4.

Beijing weiminglu blockchain Technology Co., Ltd. is a limited liability company (invested or controlled by a natural person) registered in Haidian District, Beijing on February 4, 2017, with its registered address at room 02c-266, block B (second floor), No. 28, information road, Haidian District, Beijing

the unified social credit code / registration number of Beijing weiminglu blockchain Technology Co., Ltd. is 91110108ma00blq26w, and Ren Haijiao, the legal person of the company, is currently in the status of cancellation

the business scope of Beijing weiminglu blockchain Technology Co., Ltd. is: technology development, technology promotion, technology transfer, technology consulting and technology service; Sales of self-developed procts; Computer system services; Basic software services, application software services; Software development; Software consulting; Proct design; Market Research; Enterprise management consulting; Data processing (except bank card center and cloud computing data center with pue value above 1.5 in data processing); Accepting the entrustment of financial institutions to engage in financial information technology outsourcing services; Accept the entrustment of financial institutions to engage in financial business process outsourcing services; Entrusted by financial institutions to engage in financial knowledge process outsourcing services Enterprises independently choose business projects and carry out business activities according to law; For projects that need to be approved according to law, business activities shall be carried out according to the approved contents after being approved by relevant departments; It is not allowed to engage in business activities of projects prohibited or restricted by the instrial policies of this Municipality

check more information of Beijing weiminglu blockchain Technology Co., Ltd. through aiqicha

5. 1. Technical support of borderless system
1) efficient and scalable performance
borderless system realizes over 100000 times / s batch transfer
high performance blockchain technology is necessary for cryptocurrency and smart contract platform, and can provide a solution that may replace the existing financial platform for the instry. In order to be able to process more transactions per second than visa and MasterCard, unbounded redesign starts from the bottom. Through the share authorization mechanism, the unbounded network can confirm more than 100000 transfer transactions in an average of one second

overview of borderless system architecture. The Lmax can process up to 6 million transactions per second. The key point of unbounded learning from its technology, As follows:
A) put everything in memory
b) put the core business logic in a single thread
C) put the encryption algorithm operation (hash and signature) outside the core business logic
d) divide the verification operation into state independent and state dependent checking
e) use an object-oriented data model

by following these simple rules, Unbounded can process 100000 transfers per second without disruptive optimization. If there is further optimization work, unbounded can achieve the performance similar to that of Lmax exchange (i.e. 6 million times per second). It should be noted that unbounded performance is highly dependent on one of the compatible transaction protocols. If you want to use business logic to run on a virtual machine that operates encryption algorithm and calls all objects with hash identifier, it is impossible to achieve the same level of performance. Blockchain is inherently single threaded, and the performance of single core CPU is one of the most scarce and difficult to expand. Unbounded technical logic can make the single thread execution highly efficient

endorsement of core business of borderless system
blockchain is a global account book that determines to modify a shared global state transaction. The orders contained in these transactions can change the validity of other transactions. For example, you cannot withdraw money from your bank account before the deposit of your check takes effect. You can't know if a transaction is valid until all previous transactions that can affect a particular account are processed. If two unrelated accounts do not share any common dependency, theoretically, the transactions between the two accounts can be processed at the same time. In fact, it's tricky to identify which transactions are truly independent on a smart contract driven ledger with arbitration conditions. The only way to ensure that the two transactions are truly independent is by maintaining a completely separate ledger and then transferring value between them on a regular basis. If we want to use this kind of performance tradeoff to compare, it can be like the relationship between non-uniform memory access (NUMA) and uniform memory access (UMA). In fact, the consistent memory access architecture is easier for developers to design, and the cost is lower. Inconsistent memory access architecture is usually used as a last resort when building supercomputers and large computer clusters. The computer instry has graally realized that it is not as easy to achieve performance expansion through parallel computing as it was in the early days. After all, the most important thing to do at that time was to increase the frequency of the processor. It is for this reason that processor designers are trying to improve the performance of single thread before trying to use multi thread settings. When multithreading is not enough, and only in this way, cluster computing will be considered

many people in the cryptocurrency instry try to solve the problem of scalability by cluster computing before exploring what can be achieved by a single core of a computer technically
2) Lmax disruptor decomposer technology
Lmax decomposer provides a learning example of what can be achieved on a single thread. Lmax is a trading platform for end customers with the goal of becoming the fastest exchange in the world. They have been very generous in publishing what they have learned<

overview of Lmax architecture:
business logic processor is where all sequential transactions and order matching occur. It is a single thread that can process millions of orders per second. This architecture can be easily used in the field of cryptocurrency and blockchain design. The role of the input resolver is to collect orders from many users from different sources and assign them to a certain order. When the order is assigned to them, they are copied, recorded and broadcast to many rendant business logic processors. The input resolver is highly parallel and can be easily sub contracted into a computer cluster system. When the business logic processor has finished processing the input, an output resolver is responsible for informing those who care about the result. This is also a highly parallel task. Finally, by using a single threaded sample processor and Java virtual machine in the business logic processor, Lmax can execute 6 million transactions per second. If Lmax can achieve this goal, then cryptocurrency and smart contract platform do not need to consider the cluster network solution under the condition of less than 10 transactions per second. High performance blockchain

to build a high-performance blockchain, we need to use the same technology as Lmax. Here are a few things that must be done: put everything in memory, avoid synchronization primitives (locking, atomic operations), and avoid unnecessary calculations on business logic processors. Because memory is designed to be highly parallel, it's getting cheaper. The amount of data needed to track everyone's account balance and permissions on the Internet can be stored in less than 1TB of ram, which can be purchased for less than $15000, and can be installed on the commercialized (high-end) server motherboard. Before the system was adopted by 3 billion people, this kind of hardware would be seen in ordinary desktop computers. The real bottleneck is not the demand of memory capacity, but the demand of bandwidth. In the case of 1 million transactions per second and 256 bytes per transaction, the network will need 256MB of data per second, that is, 1GBIT / s bandwidth. Such bandwidth is not common on ordinary desktop computers. However, such bandwidth is only a little bit of the 100Gbit / s bandwidth of the second generation Internet. The second-generation Internet is available to more than 210 U.S. ecational institutions, 70 companies and 45 non-profit and government agencies

in other words, blockchain technology can easily keep everything in memory, and if properly designed, it can be extended to support millions of transfers per second
3) allocate ID and avoid hash calculation
in a single threaded system, processor cycle is a scarce resource that needs to be reserved. Traditional blockchain design uses hash calculation based on encryption algorithm to generate a unique global ID system, so as to ensure that there will be no collision statistically. The problem with these hashes is that they consume more and more memory and processor cycles. Compared with a direct array index, this method will significantly take up more processor time to find the records of an account. For example, 64 bit integers are easier to compare and operate than 160 bit IDs. A larger hash ID mechanism means less space in the CPU cache and more memory is needed. In the modern operating system, the ram which is not often accessed will be compressed, but the hash identifier is a random number, which cannot be compressed. The model blockchain gives us a way to assign unique IDs around the world. These IDS will not conflict with each other. Therefore, it completely avoids using the identifier based on hash algorithm like bitcoin address to refer to an account, balance or license
4) remove signature verification from the business logic processor
all transactions in the cryptocurrency network depend on the use of encryption algorithm signature to verify permissions. In most cases, the requested permissions can be changed by the results of other transactions. This means that in the business logic processor, permissions need to be defined as a case that has nothing to do with the calculation of encryption algorithm

to achieve this goal, all public keys need to be assigned a unique and irreplaceable ID. After the ID is assigned, the input resolver can verify whether the provided signature matches the specified ID. When the transaction arrives at the business logic processor, you just need to check the ID

the same technology can remove prerequisite checking on objects with irreplaceable static IDs
5) designing transactions for static verification
for transactions, there are many features that can be statically checked without referring to the current global state. These checks include parameter range checking, input de rendancy and array sorting. In general, there are a lot of checks that can be done if the transaction contains data that it "assumes" is global. After these checks are executed, the business logic processor has to make sure that these assumptions are correct. The process is to check the modification timestamp of an object reference related to the transaction signature time
6) smart contract
many blockchains are integrating a common scripting language to define all operations. These designs ultimately define the business logic processor as a virtual machine, and all transactions are defined as scripts run by the virtual machine. This solution has a single threaded performance limit on a real processor, and the problem is exacerbated by forcing everything to be executed through a virtual processor. A virtual processor will always be slower than a real processor even if it uses JIT, but the computing speed is not the only problem of this "everything is a script" scheme. When the transaction is defined at such a low level, it means that the static check and encryption algorithm operation will still be included in the business logic processing, which will also rece the overall throughput. A script engine should never ask to perform a signature checking request for an encryption algorithm, even if the request is implemented through a native mechanism

according to the course we learned from Lmax, we know that a virtual machine designed for blockchain should consider single thread performance. This means that compiler optimization should be implemented at the beginning, and the most commonly used smart contracts should be natively supported by blockchain, while only those rarely used and customized contracts will run on a virtual machine. These custom contracts are designed with performance in mind, which means that the virtual machine should limit the range of memory that can be accessed to a level that can be placed on the processor cache
7) object oriented data schema
in memory

6. The capital chamber of financial services was established on December 26, 2013. It is a non-profit social organization legal person of cross instry, which was established with the consent of Beijing Municipal People's government, led by Beijing Municipal Bureau of financial work, jointly initiated by major financial institutions and well-known enterprises, and voluntarily formed by financial chambers of Commerce, financial institutions, non-financial enterprises and other units in Beijing, It is a joint organization of financial institutions, non-financial enterprises, social organizations and academic institutions at home and abroad in Beijing. It mainly builds a bridge and platform for the capital's financial institutions to communicate with each other, and makes full use of financial resources to serve the capital's economic and social development
the purpose of joining the capital chamber of Commerce of financial services is to respond to the call of the state for the standardized development of the Internet financial services instry. Through exchanges and cooperation with instry experts and senior financial talents in the association, qili.com participates in forums and seminars organized by the association, and strives for innovation, excellence, collective wisdom and common development with its peers, We should strengthen exchanges with financial service instry partners, and make the instry more and more standardized through policy supervision, market supervision, instry self-discipline and public heteronomy
at the same time, joining the capital financial services chamber of commerce not only affirms the excellent achievements of qili.com, but also marks that qili.com has won the unanimous recognition and praise of its peers in the instry with its unique business model, perfect risk control system and stable operation.

7.

list of member units of Beijing Financial Street chamber of Commerce (as of October 2015) (in no particular order)


state sovereign investment corporation and national social security fund
China Investment Co., Ltd., National Council of social security fund
Financial Instry Association
China Banking Association, China Securities Association, China Insurance Instry Association China Association of interbank market dealers, China Association of listed companies, China Futures Association, China Association of financial companies, China Association of insurance asset management, China Association of Actuaries
banking financial institutions
(1) bank
head office of China Development Bank, head office of export Import Bank of China, head office of Agricultural Development Bank of China, head office of instrial and Commercial Bank of China Agricultural Bank of China head office, Bank of China head office, China Construction Bank head office, China Everbright Bank head office, Huaxia Bank head office, China Minsheng Bank head office, China postal savings bank head office, Bank of Beijing head office, Beijing Agricultural commercial bank head office, China Development Bank Beijing Branch, instrial and Commercial Bank of China Beijing Branch, Bank of Communications Beijing Branch China Merchants Bank Beijing Branch, China CITIC Bank head office business department, Ping An Bank Beijing Branch, China Minsheng Bank Beijing Branch, Bohai Bank Beijing Branch, Bank of Jiangsu Beijing Branch, Bank of Nanjing Beijing Branch, Bank of Hangzhou Beijing Branch, Hengfeng Bank Beijing Branch, international business settlement center of Kunlun bank, financial center branch of Bank of China Financial Street Branch of China Construction Bank, Beijing Financial Street Branch of Guangdong Development Bank and Financial Street Branch of China Minsheng Bank Supply and marketing group finance company
(3) trust company
China Foreign Economic and Trade Trust, China Jingu International Trust, Huaxin International Trust
(4) asset management company
China Huarong Asset Management Company, China Huarong Xinda management company, China Dongfang asset management company, China Great Wall Asset Management Company, China Xinda Asset Management Company China Life Asset Management Co., Ltd., Pacific Asset Management Co., Ltd., Taikang Asset Management Co., Ltd., China Re Asset Management Co., Ltd Beijing state owned Assets Management Co., Ltd.
(5) financial leasing company
ICBC Financial Leasing Co., Ltd.
securities financial institutions
(1) securities company
China International Finance Co., Ltd., China Galaxy Securities, Hongyuan securities, Bank of China International Securities, Dongxing securities, shouchuang securities, Xinda securities, China national securities, Hengtai securities Beijing Gaohua securities, Dongwu Securities Beijing Branch, Hualong Securities Beijing Branch, Guohai Securities Beijing Branch
(2) fund companies
Huaxia Fund, Taida Hongli fund, CCB fund, Dongfang fund, China Insurance Protection Fund, Hua'an fund, Huashang fund, e-fund, founder Fubang fund, Nanfang fund Beijing branch Bank Securities International Investment Fund Management (Beijing) Co., Ltd.
insurance financial institutions
China Life Insurance (Group) Corporation, people's Insurance Corporation of China, China Reinsurance (Group) Corporation, China Export Credit Insurance Corporation, Xinhua Life Insurance Co., Ltd., Taikang Life Insurance Co., Ltd., people's Health Insurance Co., Ltd Great Wall Life Insurance Co., Ltd., Kunlun Health Insurance Co., Ltd., Zhongrong Life Insurance Co., Ltd., Beijing Branch of Taiping Insurance Co., Ltd., Century Insurance Brokerage Co., Ltd., Beijing Branch of Ping an Endowment Insurance Co., Ltd., Guodian insurance brokerage (Beijing) Co., Ltd., Xicheng Branch of people's property insurance company of China China United Property Insurance Co., Ltd., Yingda Taihe Property Insurance Co., Ltd., Anhua Agricultural Insurance Co., Ltd., Beijing Datang Taixin insurance brokerage Co., Ltd.
Financial Holding Group
China Securities Finance Co., Ltd., China CITIC Group Corporation, China Everbright (Group) Corporation China Galaxy Finance Co., Ltd.
central large state-owned enterprise group
China Post Group Corporation, China Datang Group Corporation, China Telecom Group Corporation, China United Network Communication Group Corporation, China Mobile Communication Group Corporation, China Sinochem Group Corporation, China Railway Materials Corporation China Changjiang Power Co., Ltd.
national financial settlement center and factor market
China Securities Depository and Clearing Co., Ltd., China National Treasury securities depository and Clearing Co., Ltd., national small and medium-sized enterprise share transfer system, China futures market monitoring center, national cotton trading market, Beijing Equity Exchange Beijing financial assets exchange
financial professional companies
China Banknote Printing and Minting Corporation, China Gold Coin Corporation, China bond credit enhancement Investment Co., Ltd.
credit reference institutions
credit reference center of the people's Bank of China
comprehensive investment companies
China Investment Development Co., Ltd., China Development Finance Co., Ltd Beijing Financial Street investment (Group) Co., Ltd., Financial Street Holding Co., Ltd., Beijing state owned capital management center, Beijing state owned Assets Management Co., Ltd., Guodian Capital Holding Co., Ltd., China Galaxy Investment Management Co., Ltd., Beijing Changdian Innovation Investment Management Co., Ltd., China Merchants Zhiyuan Capital Investment Co., Ltd Yinhe Innovation Capital Management Co., Ltd., Beijing Yinhe Dingfa Venture Capital Co., Ltd., Beijing tiansu Venture Capital Co., Ltd., SDIC innovation investment management (Beijing) Co., Ltd., Beijing Oriental Wealth Investment Co., Ltd., Fengli wealth (Beijing) International Capital Management Co., Ltd., warm current asset management Co., Ltd CNOOC Jincheng equity investment fund management (Beijing) Co., Ltd., Beijing Dazheng Wealth Investment Co., Ltd., Black Hawk (Shanghai) Investment Management Co., Ltd.
foreign financial institutions
JPMorgan Chase Bank (China) Co., Ltd., Hanya Bank (China) Co., Ltd., Societe Generale Bank (China) Co., Ltd., Citibank (China) Co., Ltd., Beijing Branch Deutsche Bank Beijing Branch, Swiss bank (China) Limited Beijing Branch, Morgan Stanley Bank Beijing Branch, Royal Bank of Canada Limited Beijing Branch, Bank of East Asia (China) Limited Beijing Branch, Australia New Zealand Bank (China) Limited Beijing Branch, Royal Bank of Scotland Beijing Branch, Bank of Montreal Canada Beijing Branch State Street bank Beijing Branch, DBS Bank Beijing Branch, MetLife China Representative Office, AIG Beijing Representative Office, AXA Beijing Representative Office, HSBC Financial Street sub branch
service agencies
China Securities Capital Market Operation Monitoring Center Co., Ltd., China Securities Information Technology Services Co., Ltd Beijing Guantao law firm, Zhongyi Accounting Firm Co., Ltd., Beijing guanheng law firm, Beijing zhongruicheng accounting firm, Zhongyuan Xinda Intellectual Property Co., Ltd., Beijing Keqiao Investment Consulting Co., Ltd., China bond credit rating Co., Ltd., Tianxiang Investment Consulting Co., Ltd., Beijing Huacai accounting Co., Ltd Beijing Huarui Fuda Technology Co., Ltd., Beijing West District post office, Guoshou Conference Center, Beijing United Family Hospital Management Co., Ltd., Peking University Medical Health Management Co., Ltd., Beijing Fengsheng traditional Chinese medicine orthopedic hospital, Beijing may flower stomatological clinic Co., Ltd., Beijing Huarong New Media Advertising Co., Ltd., Beijing Financial Street Property Management Co., Ltd Beijing guoxinyuan Property Management Co., Ltd., Beijing shenglida Property Management Co., Ltd., Beijing Branch of Shenzhen Decheng Property Service Co., Ltd.

8. The total number of trademark applications of the capital chamber of financial services is 6
of which 0 has been successfully registered, 1 is in application, 5 are invalid, and 0 is on sale
according to the statistics of Bajie intellectual property rights, the capital chamber of financial services can also register the following trademark classifications:
category 1 (chemical agents, fertilizers)
category 2 (pigments, paints, dyes, anti-corrosion procts)
Category 3 (daily chemical procts, washing and care, spices)
category 4 (energy sources, fuel, grease)
category 5 (drugs, sanitary procts Nutrition procts)
category 6 (metal procts, metal building materials, metal materials)
category 7 (mechanical equipment, motor, transmission)
category 8 (hand tools (small), tableware, cold weapons)
category 9 (scientific instruments, electronic procts, security equipment)
category 10 (medical devices, medical supplies, alt supplies)
category 11 (lighting and sanitary ware, cold and hot equipment, safety equipment)
category 10 (medical devices, medical supplies, alt supplies)
category 11 (lighting and sanitary ware, cold and hot equipment Disinfection and purification)
twelfth category (transport tools, carrier parts)
thirteenth categories (arms, pyrotechnics, personal protective spray)
fourteenth category (jewelry, precious metals, Zhong Biao)
fifteenth class (musical instruments, instrumental accessories and accessories)
seventeenth categories (rubber procts, insulation and insulation materials)
eighteenth categories (bags, leather goods, Umbrellas)
class 19 (non-metallic building materials)
class 20 (furniture, furniture parts, cushions)
class 21 (kitchen utensils, household utensils, washing appliances)
class 22 (ropes, awnings, bags)
class 23 (yarn, thread, silk)
class 24 (textiles, bedding, towels)
class 25 (clothing, shoes, hats, clothes, etc.) Socks and gloves)
class 26 (accessories, wigs, buttons and zippers)
class 27 (carpet, mat, wallpaper)
class 28 (toys, sports fitness equipment, fishing tackle)
class 29 (cooked food, meat, eggs and milk, edible oil)
class 30 (pastry, condiments, drinks)
class 31 (fresh, animals and plants, feed seeds)
class 32 (beer, meat, eggs and milk, edible oil)
class Non alcoholic beverages)
category 33 (alcohol, alcoholic beverages)
category 34 (tobacco, smoking sets)
category 37 (construction, interior decoration, maintenance)
category 38 (telecommunications, communication services)
category 40 (material processing, printing, sewage treatment)
category 43 (catering and accommodation, nursing, animal accommodation)
category 44 (medical treatment, beauty Gardening)
category 45 (security law, wedding housekeeping, social services)

9. It's said that yes, he still has a lot of contributions, I don't remember.