Blockchain defines the new pattern of Finance and economy in the

1. blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. The so-called consensus mechanism is a mathematical algorithm to establish trust and obtain interests between different nodes in the blockchain system
blockchain is the underlying technology of bitcoin, like a database ledger, recording all transaction records. Because of its safety and convenience, this technology has graally attracted the attention of the banking and financial instry
in April 2018, a group of scholars from Oxford University announced the establishment of Woolf University, the world's first blockchain University
in a narrow sense, blockchain is a kind of chain data structure that combines data blocks in chronological order in a sequential way, and it can not be tampered with and forged by cryptography
broadly speaking, blockchain technology is a new distributed infrastructure and computing method, which uses blockchain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and uses intelligent contract composed of automated script code to program and operate data.

2.

Blockchain classification:

1 private chain

refers to the blockchain with certain centralized control. Only the general ledger technology of blockchain is used for bookkeeping. It can be a company or an indivial who enjoys the exclusive write permission of the blockchain. This blockchain is not very different from other distributed storage schemes. The participating nodes are only users themselves, and the access and use of data have strict authority management. Due to the existence of centralized control, alliance chain can also be considered as a private chain

features: because the user has the final say, the data inside can not be changed, and there is not much protection for the third party. Generally used for internal audit. The vice president of fire coin technology believes: there are indeed a large number of scenarios in the private chain that can meet the needs of the real world. Limited decentralization makes it easier to reach a consensus, which can make the transaction faster and more efficient, and can provide more controlled functions. Decentralization is the core value of blockchain technology. If the private chain can not make full use of the decentralized trust base constructed by the public chain in practice, its development space will be limited

2public chain

public blockchain is the earliest blockchain and the most widely used one at present. It refers to a completely decentralized blockchain like bitcoin blockchain, which is not controlled by any organization. Any indivial or group in the world can send a transaction, and the transaction can be effectively confirmed by the blockchain, and anyone can participate in the consensus process. Participants in the consensus process maintain database security through cryptography and built-in economic incentives

features: completely open, uncontrolled, rely on encryption technology to ensure security

3 alliance chain

multiple preselected nodes are designated as bookkeepers within a certain group. The generation of each block is jointly determined by all preselected nodes. Other access nodes can participate in the transaction, but not the bookkeeping process (in essence, it's still managed bookkeeping, but it's just distributed bookkeeping. How many preselected nodes are there, How to decide the bookkeeper of each block becomes the main risk point of the blockchain). Anyone else can make limited query through the open API of the blockchain

the nodes participating in the blockchain are selected in advance, and the nodes are likely to have good network connections. Other consensus algorithms without workload proof can be used on such a blockchain. For example, a blockchain has been established among 100 financial institutions, and more than 67 institutions must agree to reach a consensus

Prospect:

the development of blockchain technology has also brought changes in the operation concepts of various instries. New technologies and new concepts have promoted the new development of various instries. This driving force has a huge impact on society and the promotion of economic activities. Many new instrial phenomena will occur one after another, and the public will wait and see, It is expected that this new technology will be used by all instries and benefit all instries better

3.

From the perspective of technology and architecture, I will tell you my understanding of blockchain in common language

what is blockchain? In a word, blockchain is a storage system. To be more specific, blockchain is a distributed storage system without an administrator and each node has all the data

What are the common storage systems like

first, how to ensure high availability

the common storage system usually uses "rendancy" to solve the problem of high availability. As shown in the figure above, if the data can be copied into several copies and rendant to multiple places, high availability can be guaranteed. The data in one place is hung, and there is data in other places. For example, the master-slave cluster of MySQL is the same principle, and the raid of disk is also the same principle

two points need to be emphasized in this place are: data rendancy often leads to consistency problems

1. For example, in the master-slave cluster of MySQL, there is actually a delay in reading and writing, which means there is a inconsistency in reading and writing in a short period of time. This is a side effect of data rendancy

The second point is that data rendancy often reces the efficiency of writing, because data synchronization also consumes resources. If you add two slave libraries, the write efficiency will be affected. The common storage system is to use rendancy to ensure the high availability of data

so the second question, ordinary storage system, can write more

the answer is yes, for example, take this graph as an example:

in fact, MySQL can do a master-slave synchronization of al masters, master-slave synchronization of al masters, two nodes can be written at the same time. If you want to do a multi room multi live data center, in fact, multi room multi live data synchronization. What we should emphasize here is that multi-point writing often leads to the consistency problem of writing conflicts. Take MySQL as an example, suppose that the attribute of a table is self incrementing ID, then the data in the database is 1234 now. If one of the nodes writes and inserts a piece of data, it may become 5, and then these 5 pieces of data are synchronized to another master node, Before synchronization, if another write node inserts a piece of data, a piece of data with self incrementing ID of 5 will be generated. Then, after the generation, synchronize to another node, and the synchronized data will conflict with the two local 5's after it arrives, which will lead to synchronization failure and write consistency conflict. This problem will occur in the case of multi-point writing

how to ensure consistency in multi-point writing

the reform "Swan class" gives you more technical work

4.

From 2015 to 2017, the price of bitcoin increased from more than $100 to $17000, a 100 fold increase. Today, the market value of various numerical currencies is more than 700 billion US dollars. The myth of their benefits is not nonsense

but there are many things behind the chaotic digital currency. You may ask why air currency can be listed on the stock exchange? It's very simple. The exchange also has to charge a part of the fee. Raise the price and then sell it to make money. So the question is, how to identify air currency

first of all, you need to look at the projects behind the digital currency and see what their team background is. Generally speaking, teams without experience in the instry tend to earn money, but how much experience do they have? It is better to be able to participate in the construction of Ethereum and bitstock communities. Such a team is often more reliable. This requires investors to have a certain screening ability to identify good or bad

secondly, there is no way to implement many projects. How can we identify them? In addition to the ability of the team, we also need to see the feasibility, which requires us to systematically learn the knowledge of bitcoin and blockchain. For example, Zhu Jiawei, the COO of fire coin network, learned the blockchain from 0 to 1, and clearly described the development process of bitcoin and blockchain in the form of audio and text. Besides, don Tapscott and Alex Tapscott's "blockchain revolution" are worthy of careful taste

moreover, the bubble of digital money is very large nowadays. In the bubble, it is not difficult to make money, but the key is not to be greedy. Long term holding is not good, but it can be operated in a short term. You can make money if you want. However, the key is that people are all profit-making and greed is their nature. Therefore, many people do not accept what they see. They originally made money, but later they lost everything. The gain is not worth the loss. Therefore, it is necessary to control greed

5. Beijing fire coin World Network Technology Co., Ltd.
fire coin network generally refers to Beijing fire coin World Network Technology Co., Ltd.

Beijing digital currency trading company
Beijing fire coin World Network Technology Co., Ltd. is a digital currency trading company, founded by Li Lin in Beijing on May 1, 2013. On April 4, 2014, huoyuan.com won a round of tens of millions of RMB investment from Sequoia Capital, the top venture capital institution on Wall Street. On August 5 of the same year, fire coin acquired bitcoin wallet "fast wallet" and qukuai.com<

Chinese name
Beijing huoyuantianxia Network Technology Co., Ltd.

foreign name
Huobi Technology Co, Ltd.

headquarters location
Liangsheng building, Middle Road, Xierqi, Haidian District, Beijing

business scope
digital currency transaction

founder
Li Lin

total transaction volume
200 billion yuan (as of 2016)

all authoritative information
legal representative
Li Lin

business status
in business


registered capital
100

registration time
December 18, 2013

registered address
the first floor of 29b building, No.11 anningzhuang Road, Haidian District, Beijing The above information is provided by tianyancha

94% of the people have also seen the
China coin exchange
blockchain news platform
reliable and profitable blockchain app
Company Profile
fire coin is committed to building a safe bitcoin trading platform, and the team has many years of financial risk control experience. The core members graated from Tsinghua University, Peking University, Fudan University and other domestic famous universities, and came from domestic Internet and financial enterprises such as Goldman Sachs, Internet, Oracle, Tencent and Alibaba

in April 2015, fire coin set up fire coin blockchain Research Center, and established "digital asset research project" with Internet Finance Laboratory of Wukou School of finance, Tsinghua University (former Graate School of central bank) [1]. In July 2016, together with the Internet Finance Laboratory of Wukou College of Finance and sina science and technology, huobi.com released the 2014-2016 global bitcoin Development Research Report [2]. In the same month, the fire coin blockchain research center and the Mechanical Instry Press published the book "blockchain: defining the new pattern of Finance and economy in the future" [3]<

Proct Introction
flash player: a short-term trading tool tailored for traders. It provides 250 real-time transaction records per second for 20 outlets, 0-delay flash trading, supports split screen display of trading window and quotation window, and allows users to analyze quotation chart

hotcoin app: an app with comprehensive functions in bitcoin instry. A bitcoin trading app providing registration, recharge, trading, cash withdrawal and information integration services. This app has a price reminder function<

organizational structure
Li Lin
founder and chairman

Mr. Li Lin is the founder and chairman of fire coin and the promoter of global digital currency trading. Since the establishment of fire coin, he led the team to develop fire coin into a leading digital currency trading platform in the world. By the end of 2016, the accumulated trading volume was RMB 200 billion. Before the founding of fire coin, Mr. Li Lin worked in Oracle Asia Research Center and served as a R & D Engineer; In 2009, we founded the social proct Youyi based on MSN; In 2010, the second largest independent group buying search company in China was founded. Mr. Li Lin led the team to break the instry records repeatedly, and has rich experience in Internet Finance entrepreneurship and team management<

Du Jun, co-founder and director

Mr. Du Jun is the co-founder and director of fire coin, and a world-famous digital asset investment and manager. Prior to the establishment of fire coin, Mr. Du Jun worked in Kangsheng chuangxiang, a well-known community software company, and successively served as marketing director, operation director and proct manager; After Tencent acquired Kangsheng chuangxiang, it became its core proct Discuz! Proct leader, lead Discuz! Proct design of X series and Application Center. Mr. Du Jun has outstanding performance in marketing, operation, creativity and other fields.

6. Some people are joking, others are speechless, and the market they are facing is still so broad. The so-called life is full of various forms. Some people talk about it when they are rich, while some people talk about it when they are poor. Time has not given anyone talent, and life has not given anyone victory. Looking back in the eyes is the struggle of the lifeblood, not seeking truth or falsehood, not speaking high or low. It is the feedback of a soul, talking in common language, high-profile description and looking back, How many people are the audience, how many people have been laughing, dripping psychology, fragrant puzzle, some people begin to struggle, some people directly sit on the throne of laziness, do not ask for nobility, do not ask about the afterlife, get wine often drink dreamless song.