Several listed companies have passed the function test of blockc

2.

Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is an important concept of bitcoin. It is essentially a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of information about bitcoin network transactions, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

if such technology wants to be put into application, the biggest problem is the "Impossible Triangle problem"

that is, scalability, decentralization and security cannot be achieved at the same time, and only two of them can be achieved

most of the existing public chain projects in the market are difficult to put into use on a large scale

3. Shandong bianke Information Technology Co., Ltd. is a software development company with excellent technology
[blockchain exchange]
blockchain technology application research and development, exchange wallet system app development, blockchain technology is actually a new type of Internet. Why is it a subversion of the Internet? Because the Internet solves the problem of information transmission, and the blockchain solves the problem of value transmission. Yuanzhongrui's blockchain system has a lot of value transfer in the development of blockchain, such as distributed ledger, decentralized trust, smart contract, etc. What kind of society will it build in the future
the answer is: a distributed business and self disciplined society. Blockchain features first, decentralization; Without the intervention of the third party, it can realize people to people, point-to-point transaction and interaction
Second, information can not be tampered with; Once the data information is written into the block, it cannot be changed or revoked< Thirdly, it is open and transparent; In a very short time, the block information will be copied to all the blocks in the network to realize the data synchronization of the whole network, and each node can trace back all the transaction information of both sides in the past
Fourth, collective maintenance; In the whole blockchain network, all roles work together to maintain the reliability and security of the whole blockchain information
fifthly, reliable database; Only by mastering 51% of the nodes of the whole system can we tamper with the blockchain information, which is obviously impossible, because there are many participants in the whole system, and mastering so many nodes can not be realized at high cost
the characteristics of blockchain bring great opportunities for the financial instry. With the help of blockchain, the transformation of the internal application scenarios of the instry can bring three main benefits:
1) cost rection: communication cost: the centralized trading market generally needs the participation and coordination of the central clearing system, securities companies, exchanges and banks, and the coordination cost is very high, Through the signature and encryption technology of blockchain, the information can be shared and the coordination cost can be reced; Operating costs: recing labor and paper vouchers, improving automation through smart contracts, and centralizing coordination also bring very high operating costs
2) improve efficiency: the settlement cycle is very fast. When the financial transactions realized through blockchain technology are confirmed, they are actually the process of combining clearing, settlement and audit. The openness, transparency and non tamperability of the blockchain can preserve the operation traces, keep the supervision records and audit traces, and provide convenience for supervision and audit
3) risk rection: the transaction confirmation on the chain is the completion of clearing and calculation, which greatly reces the transaction risk. The research and development of blockchain technology application and the development of exchange wallet system app

4. 1. Weizhong bank uses blockchain technology for loan clearing
in September 2016, Weizhong bank and Shanghai Huarui bank put into trial operation the inter-bank joint loan clearing platform based on alliance blockchain technology to optimize the settlement and clearing of "micro loan" joint loans of the two banks. With the introction of the blockchain system, all the information is recorded on the blockchain network, which can not be tampered with. The transaction process is cleared at the same time, realizing real-time clearing, saving a lot of manpower and material resources
2. China UnionPay uses blockchain technology to realize inter-bank points exchange
in September 2016, China UnionPay and IBM tried out a shared points system based on blockchain technology. Using this blockchain system allows users to exchange bonus points across banks and platforms. In other words, the bonus points of one bank can be exchanged for bonus points of other banks, or even multiple airline mileage and supermarket awards. It greatly improves the use efficiency of bank points
3. Toyota uses blockchain technology to track auto parts
in October 2016, Toyota joined R3 alliance to store the proction, processing and use of each part in the blockchain through blockchain technology, so that when there is a problem with auto parts, the source of the parts can be easily and quickly found
4. Central bank's blockchain digital bill trading platform
in January 2017, the central bank's blockchain based digital bill trading platform was successfully tested. The introction of digital currency for settlement can realize the synchronous transfer of capital flow and information flow of digital bill transaction, so as to realize DVP bill settlement. At the same time, the blockchain digital identity solution solves the problem of repeated KYC authentication between different financial institutions. It not only solves the problem that the transaction amount of digital bills is confidential to the unrelated parties, but also ensures that the regulatory parties such as the exchange have the mechanism of seeing through when necessary
5. Ant financial services blockchain application
in August 2017, ant financial services blockchain technology tested water insurance and helped Xinmei mutual insurance company to launch the first love rescue account in the domestic insurance instry. Blockchain technology makes every capital flow open and transparent, the data of every capital flow can not be tampered with, and the whereabouts and uses of every capital can be traced. In November of the same year, ant chain was used in food safety traceability and traceability of genuine procts. At present, the milk powder proced in Australia and New Zealand and Moutai in China, users can only know if they are genuine procts by scanning Alipay.
there are many other successful cases at home and abroad, all of which indicate that the application of blockchain technology is graally promoted, and is favored by various instries. Accompanied by the emergence of many blockchain technology companies, they want to take a share in this field. However, after the people's Bank of China and other seven ministries and commissions issued the "notice on preventing the financing risk of token issuance"), with the increasing difficulty of registration, there are more empty shell companies in the intermediary instry chain, and few companies have practical applications
in addition, the security technology of blockchain has always been concerned and controversial. Nowadays, blockchain mainly faces five security problems: the security of underlying code, cryptographic algorithm, consensus mechanism, smart contract and digital wallet.

5.

Blockchain is a new application mode of distributed data storage, which is an important concept of bitcoin. At present, there are 35 stocks associated with the blockchain concept in the A-share market, of which 6 blockchain concept listed companies are traded on the Shanghai Stock Exchange, and 29 blockchain concept listed companies are traded on the Shenzhen Stock Exchange

according to the correlation of blockchain, the leading stocks of blockchain concept stocks are most likely to be born from Xinchen technology, luyitong and Sifang Jingchuang

Xinchen Technology: on September 29, 2016, the company said in the interaction that the company is now doing research and development of blockchain technology

Lu Yitong: the company plans to raise 67.9691 million shares of additional shares of RMB 24.57 per share, and the total amount of supporting funds will not exceed RMB 1.670 billion, which will be used to pay the cash consideration of this transaction, construct the block chain ASIC chip instrialization project, artificial intelligence ASIC chip R & D center, chip proct marketing and service network, etc

Sifang Jingchuang: on May 31, 2016, the inaugural meeting and the first general meeting of the financial blockchain cooperation alliance (Shenzhen) was officially held in Shenzhen Wuzhou Hotel, and the company was one of the members of the meeting

6. In May 2018, under the guidance of the Department of information technology and software services of the Ministry of instry and information technology, China blockchain technology and instry development forum announced the standard of "blockchain and distributed ledger technology reference architecture", becoming the first domestic blockchain basic standard under the guidance of the government in the world. For investment opportunities in the instry, CITIC Securities said that in terms of instry investment, the instry is still in the stage of infrastructure construction, but progress has begun to accelerate. The procts of start-ups are not mature, the performance is not optimistic, the instry valuation is generally high, and the instry inflection point has not yet arrived. Now they are in the accumulation stage of blockchain technology learning curve, and they are looking forward to the implementation of explosive application scenarios
concept stocks: Tuowei information, Huasheng Tiancheng, Westone.

7. At present, there are many blockchain development companies, such as Shengshi Huacai, which provide underlying technical services, and provide investment, mining, information and user-defined functions in combination with commercial systems. It's better to choose according to your own actual situation

8. Think with your pig brain, is this discount platform the father of game developer? Why did the game authorities give him such a low price? 6% off. Then who will go to the government to charge money? Do you think if you sell things in business, will you ask others to collect money for you? And if you sell something for ten yuan, he will give you five yuan to sell it and then give you four yuan. You understand that? What are you thinking. How can we get a 4.6% discount? It's simple. 1. The server of the game should be maintained by your platform. You pay for electricity, water, rent and employees' salaries. Pay for new activities, new roles, new maps and new plots. Responsible for the cost of game promotion, you come out, you find people to promote. Then I'll give you a 4.6% discount. Got it? And these discount platforms recharge virtual currency on their platform and then transfer to the game. Think about this routine. Take Netease, a big game manufacturer, for example, how dare he give a discount of 4.6 for so many games he represents? The game developer didn't beat him to death. If you really want to play the game discount, you can only go to the official website to recharge. Other people's game developers can't have made 10 yuan, let you go to other places to charge 10 yuan and then give him 4 yuan. The server group is with the developer. What data does your account login have that people can see. Is it difficult for the discount platform to make up 6 yuan for the 4 yuan you charged to the official? There is also a discount platform to buy the game. As I said above, the game developers develop the game, then sell the right to the game platform, and then they are responsible for maintenance. Then the game platform advertisement said, alas, this game is only 40% off. But the game is his. The original price is 4 yuan. I'll tell you 10 yuan. Now the discount is only 4 yuan. Do you understand this routine? And then you feel like you're making money. But when you enter the game, you will find that it's all V's and there are too many explosions. Then such a game opens once a few days. And then in the integration let you compare money. Even if it's 10% off, it's more expensive than playing games. Then you will find that those who don't have enough money will not play. Game platform to continue to open a few times, and then cut a few waves of leeks. Squeeze you dry, not many people in the game finished, she shut down, because the server is open, every day is to ask for money. But at this time, he has an excuse. He will say that the game was not developed by him, ha ha ha. He's just a discount platform. What do you do;

9.

bus line: No.503 → Jinbin Light Rail Metro Line 9 → No.109, the whole journey is about 41.9km

1. Walk about 240m from Xiangjiang Road to guanghuaqiao station

2. Take No.503, pass by 2 stations, and then reach Zhongshan Gate Station (or take no.872, 857, 830)

3. Walk about 80m to Zhongshan Gate Station

4. Take Jinbin Light Rail Metro Line 9, After 9 stops, you can reach Tanggu station

5, walk about 270 meters, reach foreign goods market station

6, take bus 109, pass 6 stops, reach Riverside Park Station

7, walk about 150 meters, and reach Tianjin Fifth Central Hospital