Wenzhou Ethereum
virtual currency is the currency used for electronic circulation. Now the scope of virtual currency is very large, including q-coin, bitcoin and so on. With the development of digital currency, virtual currency is becoming more and more abundant, which may become the mainstream in the future. For example, BTC, EOS, bcbot and so on are not only virtual currencies, but also algorithms, landing projects and technologies
virtual currency is mainly issued by online game service providers to purchase game props, such as equipment, clothing, etc. But at present, the use of virtual currency has gone far beyond this category. Virtual currency can be used to buy game cards, physical objects and download services of some movies and software
extended data:
real risk
as the proct of e-commerce, virtual currency has begun to play an increasingly important role, and it is more and more connected with the real world. However, with the growth of virtual currency, the relevant laws and regulations are lagging behind, which has laid many hidden dangers
fraud
the private transaction of online virtual currency has realized the two-way circulation between virtual currency and RMB to a certain extent. The activity of these traders is to buy all kinds of virtual currencies and procts at a low price, and then sell them at a high price to earn profits. With the increase of such transactions, there are even virtual mints. In addition to the virtual currency provided by the main company, there are also some people who specialize in "virtual coin making" to obtain virtual currency by playing games and then resell it to other players
Taking Wenzhou as an example, there are about seven or eight such "virtual mints" with four or five hundred practitioners. This not only creates a bubble for the price of the virtual currency itself, but also causes trouble for the normal sale of the issuing company. It also provides a platform for selling and collecting money and money laundering for various cyber crimes. p>
impact system
in modern financial system, the issuers of money are generally central banks, which are responsible for the management and supervision of money operation. As the equivalent exchange goods used to replace the real currency circulation on the Internet, the virtual currency on the Internet is essentially the same as the real currency. The difference is that the issuers are no longer central banks, but Internet companies
if the development of virtual currency makes it form a unified market, each company can exchange with each other, or virtual currency is integrated and unified, and all of them are based on the same standard and price, then in a sense, virtual currency is currency, which is likely to form a threat impact on the traditional financial system or economic operation
reference: network virtual currency
No, the general big exchanges will do the mapping for you. EOS can be understood as enterprise operation system, which is a blockchain operating system designed for commercial distributed applications. EOS is a new blockchain architecture, which aims to extend the performance of distributed applications. Note that it is not a currency like bitcoin and Ethereum, but a token based on the EOS software project, known as blockchain 3.0
extended information:
previously, e to the super node election campaign of EOS, almost the whole currency circle participated in it: exchanges, mining pools, big V came in droves, and even the well-known overseas "Wenzhou Gang" also ran with billions of assets, which once pushed the price of EOS up. Non trumpet data show that in the middle and late March, EOS was in a low hovering period. On March 19, the price was only US $4.02, and the total market value of EOS was US $3 billion
in April, more teams and indivials continue to pour into the annual drama of the currency circle. On April 11, antpool ant mine announced to join. On April 20, baoerye arrived. On April 24, bitfinex and huocoin mine also announced to join the super node election. For a while, EOS has formed a strong momentum, boosting the price up all the way. By April 30, the price of EOS has increased to US $20.05, with a market value of US $16.5 billion
in May, the situation began to change, consistent with the downturn of digital currency market, and EOS also started a downward trend. By May 31, the price of EOS had fallen to a small bottom of only $11.94. In the following week, as the original date of main online line, June 8, approached, the price of EOS bucked the trend and rose to $14.29 on that day
unexpectedly, on June 8, e to the negative vote of one third of the participating nodes, the main network was not successfully launched, so it had to be postponed. On June 10, it was launched again, but failed again because the online voting rate was only 1.77%, which did not reach the 15% voting rate required by the main network
this situation quickly transmitted to the market price. Within a few days, the price of EOS went down again, from US $14 to US $13 and US $11. On June 14, the price of EOS "broke through ten" and fell to US $9.68. As of June 28, the price of EOS had dropped nearly 60%
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.
in front of the article: the video version is slightly different from the text version. If you want to see my affectionate interpretation, please see the video version (meow understands blockchain phase 22 | sharding: Ethereum is too slow, "disk" him!), The logic of thinking is strange. Please see the extended version
recently, Ethereum has shown an overwhelming positive trend e to the Constantinople upgrade, while Ethereum's upgrade road is like upgrading and fighting monsters, falling into rabbithole. No one knows how deep the hole is. Since it is a long way to go, it is of vital importance to make every step well and accurately. After overcoming this difficulty, Ethereum's next technical difficulty, sharding fragmentation, has been put on the table again. This issue of "meow understands blockchain" will take you into sharding, the magic weapon that makes Ethereum fast
what is sharding
slicing technology is not a new concept. At first, it is an optimization scheme for large central database. Specifically, it divides the data in large database into many shards according to certain rules, and then stores these data in different servers to rece the data access pressure of each server, So as to improve the performance of the whole database system
let's take a small popular example:
for example, meituan, Didi taxi and other software that we often use can be divided according to the "city". Because the data of different cities do not need to communicate, the data of different cities can be stored in different databases, so that the database server can be deployed to the nearest node from the corresponding city, Can also improve the speed of access, why not do it
from the above example, we should have a preliminary understanding of the concept of fragmentation. What about fragmentation in blockchain scenarios
taking Ethereum fragmentation as an example, in the original single chain system, the overall performance of the public chain depends on the performance of a single node. After fragmentation, each node only needs to undertake the work of the whole network, and each fragmentation works in parallel. According to vitalik, each shard is like a separate galaxy, and each fragmentation is like an independent universe, In this way, the efficiency will be improved naturally! Originally, the total network TPS of Ethereum chain was about 20. Now, if it is increased to 100 pieces, the total network TPS can be increased to 2000. Similarly, the total network capacity will be increased to 100 times of the original
"each node only needs to undertake part of the work of the whole network", which will lead to several major problems. 1. How to determine which piece of work this node is responsible for? 2. Which transactions should be classified into which segments? 3. Does each node only need to store its own transaction information (ledger)
according to the implementation of the above problems, we can divide the fragmentation into three types: network fragmentation, transaction fragmentation and state fragmentation
Network fragmentation: how to divide the nodes of the whole network into different partitions
transaction segmentation: how to divide the whole network transactions into different segments
State fragmentation: how to make each node only maintain the account book in its own fragmentation without affecting the security of the whole system
the difference and connection between main chain and fragmentation chain
we have understood the types of fragmentation, so what's the difference between main chain and shard chain
turn left | turn right
the realization of Ethereum fragmentation is a long process. Even vitalik himself said that it will be graally realized by stages. We'd better look forward to whether fragmentation can move from theory to practice
skycoin, or sky for short. Skycoin is a fast, free, secure, scalable, private and programmable cryptocurrency for the new Internet skywire. Skycoin project was established before the release of litecoin (around 2010). It is the successor of bitcoin and aims to improve the security, ease of use and convenience of bitcoin and make up for its defects. Skycoin solves the inherent problems and limitations of bitcoin design, implementation and configuration. Skycoin meets the needs of using user output as a medium of transaction and achieves full availability. And it can still run under the condition of slow network speed, low configuration hardware and continuous network attack. Skycoin is committed to becoming the third generation of blockchain, not only cryptocurrency, but also the Internet.
in front of the article: the video version is slightly different from the text version. If you want to see my affectionate interpretation, please see the video version (meow understands blockchain phase 22 | sharding: Ethereum is too slow, "disk" him!), The logic of thinking is strange. Please see the extended version
recently, Ethereum has shown an overwhelming positive trend e to the Constantinople upgrade, while Ethereum's upgrade road is like upgrading and fighting monsters, falling into rabbithole. No one knows how deep the hole is. Since it is a long way to go, it is of vital importance to make every step well and accurately. After overcoming this difficulty, Ethereum's next technical difficulty, sharding fragmentation, has been put on the table again. This issue of "meow understands blockchain" will take you into sharding, the magic weapon that makes Ethereum fast
what is sharding
slicing technology is not a new concept. At first, it is an optimization scheme for large central database. Specifically, it divides the data in large database into many shards according to certain rules, and then stores these data in different servers to rece the data access pressure of each server, So as to improve the performance of the whole database system
let's take a small popular example:
for example, meituan, Didi taxi and other software that we often use can be divided according to the "city". Because the data of different cities do not need to communicate, the data of different cities can be stored in different databases, so that the database server can be deployed to the nearest node from the corresponding city, Can also improve the speed of access, why not do it
from the above examples, we should have a preliminary understanding of the concept of fragmentation. What about fragmentation in blockchain scenarios
taking Ethereum fragmentation as an example, in the original single chain system, the overall performance of the public chain depends on the performance of a single node. After fragmentation, each node only needs to undertake the work of the whole network, and each fragmentation works in parallel. According to vitalik, each shard is like a separate galaxy, and each fragmentation is like an independent universe, In this way, the efficiency will be improved naturally! Originally, the total network TPS of Ethereum chain was about 20. Now, if it is increased to 100 pieces, the total network TPS can be increased to 2000. Similarly, the total network capacity will be increased to 100 times of the original
"each node only needs to undertake part of the work of the whole network", which will lead to several major problems. 1. How to determine which piece of work this node is responsible for? 2. Which transactions should be classified into which segments? 3. Does each node only need to store its own transaction information (ledger)
according to the implementation of the above problems, we can divide the fragmentation into three types: network fragmentation, transaction fragmentation and state fragmentation
Network fragmentation: how to divide the nodes of the whole network into different partitions
transaction segmentation: how to divide the whole network transactions into different segments
State fragmentation: how to make each node only maintain the account book in its own fragmentation without affecting the security of the whole system
the difference and connection between main chain and fragmentation chain
we have understood the types of fragmentation, so what's the difference between main chain and shard chain
turn left | turn right
the realization of Ethereum fragmentation is a long process. Even vitalik himself said that it will be graally realized by stages. We'd better look forward to whether fragmentation can move from theory to practice