1. 1. What is
blockchain? In a word
A: blockchain is an encrypted database chain, that is, the transaction data in multiple timestamps / events are encrypted and linked together, and the data can not be tampered with or shared
2. Performance and logic:
A. external operation forms: bank deposit and withdrawal, remittance, account in and out, shopping, currency issuance, capital transaction, etc
B. internal logic processing (software program): after human operation, the data will be encrypted first and then stored in the database. After the program, the data will be divided into regions, such as the data in the event and time stamp will be classified and put together into a region. Multiple events and data in timestamps are associated to form a blockchain. The encrypted data can be shared, but not tampered with
C. forms of sharing: querying personal information, auditing, etc. Query permission / sharing permission: different permissions can query different data. For example, the bank can query the information of all people, and the indivial can only query the indivial
3. Most of the examples are different, but the logic processing ideas are the same, but the implementation methods and operations are different
4. Blockchain: it has the characteristics of encrypted data, tamperable data and shared data
5. Blockchain Technology: the technology of encrypting, partitioning and sharing data with editing programs
there are suggestions for guidance
application fields: finance, it, commodity sales, online shopping, etc.
2. At present, it is 5173 and Taobao. Taobao is cheap. 5173 is about 20 percent
3. 1. Work hard [Pinyin]: F è n f ā chu ō l ì Explanation: work hard and be energetic [source]: it comes from the epitaph of Liu Zihou written by Han Yu of Tang Dynasty: "to discuss the evidence of the present and the ancient times, to go in and out of history, to be vigorous and resolute, and to lead the people who often bow to it." No matter who the first emperor is, he can't help Su Xin. The second part of Chen Tianhua's on the history of Chinese revolution in Qing Dynasty: ffcl: go all out, go all out, go all out; It refers to a person's mental outlook è n f ā d ǎ o l ì Explanation: Struggle: cheer up; Hair: encourage; Step: step, extend to do, implement; Li: fierce and quick. Be inspired and act fast [source]: Han Yu's epitaph of Liu Zihou in Tang Dynasty said: "to discuss the evidence of the present and the ancient times, one can go back and forth through the history of the hundred scholars, who are vigorous and resolute, and often yield to the people in his seat." There are thousands of young women going out of their families and going to the front line to prevent their male compatriots from focusing on beauty. In Zou Taofen's ten million youths who have worked hard since the Anti Japanese War, FFDL is used as the predicate; It refers to people's mental outlook è n f ā t ú qi á Ng [explanation]: figure: seeking. Cheer up for strength [source]: Guo Moruo's spring of Science: "I wish the middle-aged generation of scientific workers to work hard, make revolution and work hard, and bravely climb the world's scientific peak." Young people should work hard and contribute to the construction of the motherland Phonetic code: fftq [synonym]: to be angry and strive for success [antonym]: to abandon oneself [usage]: as predicate, adverbial and attribute; Go all out to make the country strong: in the Western Han Dynasty, Sima Qian traveled all over the cultural relics of the motherland, accumulated a lot of historical materials, and began to compile historical records as an imperial edict. He was involved in the crime of Li Ling and sentenced to court punishment. After he was released from prison, he enred great mental and physical torture. Through unremitting efforts, he finally completed 130 great works historical records. 4. Work hard è n f ā xi à ng sh à He is in high spirits [source]: Deng Xiaoping's "emancipating the mind, seeking truth from facts, United and looking forward" said: "in all fronts, we have formed an atmosphere of catching up with each other, striving to be advanced, and striving to make progress." Phonetic code: ffxs: used as attributive and adverbial; For people's mental state 5 è n f ā y ǒ u w é I [explanation]: work hard: cheer up. Cheer up and make a difference Source: Wang Chong of Han Dynasty's Lun Heng Chu Chen Pian: "courage, nature." If you can work so hard, what is not easy to do in the future! The 35th chapter of Li Baojia's the appearance of officialdom in Qing Dynasty [pinyin code]: ffyw [synonym]: to be angry and to be strong [antonym]: to abandon oneself [usage]: as predicate and attribute; Energetic and promising
4. It is planned to be completed and opened in September, 2012
5. Ant blockchain is still very popular in various applications. Recently, there are many reports about them in the news. Ant chain restarted a project of Mr. Ma 19 years ago and released the trustle platform to solve the problem of mutual distrust between buyers and sellers in traditional foreign trade. According to their introction at the press conference, trustle platform is based on ant chain. Through cooperation with banks, it realizes the full link intelligent performance of cross-border trade and ensures the smooth collection of sellers. At the same time, sellers can accumulate credit through online transactions on the platform and obtain more affordable financial services in banks. If you have this need, you can go to their official website to find staff for detailed introction.
6. The development of blockchain has been booming. What are the application areas of blockchain
at present, the most extensive and successful application of blockchain technology is digital currency represented by bitcoin. In recent years, digital currency has developed rapidly. Due to the characteristics of decentralized credit and frequent transactions, it has high transaction value and can maintain a relatively stable price by developing hedging financial derivatives as quasi super sovereign currency
the "Impossible Triangle" paradox in blockchain
in the application and development of blockchain, another factor that affects and erodes national sovereignty is the anarchism and liberalization tendency that the governance of single technology may bring. Blockchain fundamentally subverts the existing legal supervision system, and realizes "autonomy" purely by pre-defined technical rules, which may improve the convenience and efficiency of operation. However, e to the lack of corresponding legal regulations, it is also easy to cause the infringement of national sovereignty, public interests, various organizations and indivial rights and interests. The application of blockchain not only needs to solve technical problems, but also needs to study and solve the connection and integration of cyberspace and real society< br />
8. Hello, landlord:
as soon as you get to the Civic Center, you can use the mobile map, but I also
suggest you use Tencent's Lubao to calculate the time and the nearest route, and update the new traffic congestion at any time. You can download it in the Android market, and you can also install it on the official website of the navigation software. After downloading the map package, you can save 90% of the traffic use, provide the freshest information about eating, drinking and playing, provide a variety of routes for taxi and bus self driving, query scenic spot information, street view map function, which is convenient to use, and is good for your travel. I hope I can help you.