Dong Ming of BCC digital currency exchange
1. Bithumb
bithumb is the largest digital currency exchange in South Korea and the top ten in the world in terms of trading volume. Its daily trading volume exceeds 13000 bitcoins, accounting for about 10% of global bitcoin trading volume. It promises to provide the lowest handling charge in the world. Bithumb accounts for 75.7% of South Korea's bitcoin market, 10% of the global bitcoin market, and 50% of South Korea's Ethereum market
Bitmex is established in the Republic of Seychelles as a leading leverage trading platform. It can operate cryptocurrency derivatives trading as high as 100 times leverage, and also provide high leverage for other digital currency procts. Bitmex offers more than a dozen futures and swap procts. Bitcoin is one of the most active trading varieties, which can be divided into three types: xbtz17 (bitcoin / USD futures), xbjz17 (bitcoin / yen futures) and xbtusd (bitcoin / USD perpetual swap)
to register a bitmex account, just fill in the email, password and country. The name can be left blank. Bitmex does not accept the recharge and withdrawal of legal currency, so it does not have to follow the bank's KYC / AML requirements to obtain the user's personal information
Okex
3, okex
okex mainly provides global users with spot and derivative trading services of digital assets such as bitcoin, lightcoin and ethereal currency, which is subordinate to okex Technology Company Limited. Since 2014, we have been committed to providing bitcoin, lightcoin, ethercoin and other digital asset currency and derivatives trading services to global users, adopting advanced technologies such as GSLB, distributed server cluster, distributed storage, high-speed memory trading engine with multi machine mutual backup, cold wallet, hot money package with private key offline, etc
As one of the most concerned companies in the international blockchain instry, Qian'an is jointly founded by Zhao CHANGPENG, former blockchain CTO, a well-known blockchain company, and He Yi, former vice president of science and technology, to provide users with more secure and convenient digital currency exchange services and aggregate global high-quality digital currencies, It is committed to building a world-class blockchain asset trading platform. Only 50 days after its launch, the company's users have covered more than 180 countries around the world. This is the first time that the company has disclosed its financing information
5. Hotcoin is one of the three major exchanges in China. Headquartered in Beijing, it also has many exchanges, including domestic stations, international stations, quantitative trading, etc. hotcoin is a domestic station. Since its establishment in 2013, the accumulated trading volume of hotcoin has exceeded $100 billion, once becoming the largest digital asset trading platform in the world, It occupies 50% of the global share of digital asset transactions, and has been invested by Zhenge fund and Sequoia Capital
fire coin group has invested in more than 10 upstream and downstream enterprises, and has completed the establishment of compliance service teams in Singapore, South Korea, Hong Kong, Thailand, Australia, Canada, Brazil, Britain and other countries and regions, providing secure and reliable digital asset trading and asset management services for millions of users in more than 130 countries
6, bibox
bibox is the world's first artificial intelligence digital asset trading platform, which innovatively realizes transaction security, platform stability and operation convenience; Financial derivatives services are well-known in the instry. The platform not only provides spot trading, but also provides financing, currency financing and contract trading business. Investors can carry out long short two-way operation. They can obtain the income from the rise in the price of digital assets by buying long and obtain the income from the fall in the price of digital assets by selling short, which is convenient for traders to invest and hedge
Hitbtc
7, hitbtc
hitbtc was established in 2013 and obtained 6 million euro venture capital. Headquartered in Europe, it is a bitcoin trading platform in the UK, supporting the current mainstream encrypted digital currency portfolio trading, including BCC / BTC, ETH / BTC, XmR / BTC, LTC / BTC, EOS / BTC, EOS / eth, etc. at present, there are 762 trading pairs. Hitbtc is operated by hit Solutions Limited in Hong Kong and has a dedicated support and communications office in Santiago, Chile
Digifinex
digifinex is a block chain Digital Asset Exchange registered in Seychelles, which mainly provides currency trading services of bitcoin, Ethereum, lightcoin and other digital assets for global users. According to non trumpet data, there are 103 platform trading pairs at present. Digifinex is founded by blockchain and digital asset enthusiasts, with core teams from Xunlei, Tencent and Internet. It is operated by digifnex limited, which is registered in Seychelles, and its current operation center is located in Singapore
ZB network is a global digital currency exchange. Currently, there are 168 platform trading pairs, which support OTC and spot trading. At present, it has obtained the exchange license of Thailand and Du, and has set up operation centers in Switzerland, Canada, the United States, Bangkok, Du and other places. ZB focuses on providing global customers with safe, convenient and compliant blockchain asset trading services
10, coin win international station
coin win is a global digital asset trading platform set up by Chinese state-owned enterprises in Hong Kong. It adopts bank level security technologies such as cold storage, SSL and multiple encryption to ensure the security and stability of virtual currency transactions. It mainly provides transaction services of digital assets such as ether currency and HSR for global users, and is subordinate to citicash Hong Kong Investment Limited. Currently, there are 51 platform trading pairs, which support OTC and spot trading
2. Eth: smart contract and e-cash
3. BCH: Clone of bitcoin
4. XRP: enterprise transfer network
5. LTC: faster version of bitcoin
6. Dash: Clone of bitcoin with stronger privacy
7. Neo: Chinese version of Ethereum
8. NEM: Xinjing movement digital assets
9. XmR: anonymous digital cash
10 Etc: Ethereum clone
11, iota: Internet of things transfer
12, qtum: smart contract
13, OMG: banking, remittance, exchange
14, Zec: anonymous digital cash
15, BCC: Madoff like investment fund
16, lisk: distributed app written in Java
17, ADA: layered digital cash and smart contract
18, tether: US $1
19 XLM: IOU of digital cash
20, EOS: distributed app on webassembly
21, HSR: blockchain switch
22, waves: distributed exchange and crowdfunding
23, stratis: distributed app in C language
24, KMD: distributed ICO
25, ark: blockchain switch
26, ETN: cloned Monroe coin
27, BCN: anonymous digital cash
28 Steem: reddit voting with token
29, ardr: can generate the master chain of blockchain
30, BNB: compensate the transaction fee of coin security
31, augur: distributed forecast market
32, ppt: Bill financial system of blockchain
33, DCR: bitcoin with independent management mechanism
34, pay: digital currency payment card
35, Maid: rent hard disk space
36 Bitcoin disk: Clone XZC
37, BTS: distributed exchange
38, GNT: renting computer computing power
39, pivx: Clone dash without inflation
40, gas: payment of Neo transfer fee
41, TRX: payment within app
42, VTC: Clone bitcoin
43, Mona: Japanese dogcoin
44, FCT: distributed data record
45 Bat: distributed advertising network
46, salt: digital currency based mortgage network
47, KNC: distributed exchange
48, Doge: cute bitcoin clone
49, DGD: Gold digital monetization managed by the company
50, WTC: Internet of things blockchain
51, jiuzhuang bcbot
that is, the buyer and the seller freely negotiate the price and terms on the OTC platform and trade on their own. The external trading platform mainly provides two services: one is the information matching of both sides of the transaction, and the other is the security guarantee of bitcoin
Second, contract transaction, currency to currency transaction
the traditional digital asset investment is the conversion between digital assets and RMB (CNY). Currency to currency transaction is to buy and sell bitcoin as the base currency for other digital currencies, buy low and sell high to get more bitcoin. 58coin can support BTC / eth / etc / LTC / BCC / dash and other six kinds of digital currency exchange, provided that you have money. I suggest you transfer the money in hand directly into 58coin
Third, overseas exchanges
if bitcoin spot trading is not allowed in China, then go directly to overseas exchanges for trading. Common foreign exchanges, such as the bitrex website, are easy to register and provide us dollar and bitcoin transactions, but they do not have a Chinese version. They must also open a US dollar account for cash withdrawal<
Fourth, decentralized exchange
decentralized exchange is to install a software on your computer, and other people also install the software, and then you form a P2P network with each other. You can use this software to buy and sell bitcoin through this network. Both sides of the transaction can be completely unfamiliar. Both sides should abide by the same agreement. The platform does not guarantee the security of the transaction. Generally, for the security of the transaction, both sides can apply for a third-party arbitration.
wake up, don't be fooled by IPv9 Source: guangming.com)
recently, IPv9, which holds high the "network sovereignty", "self-control" and "security gate", has made a comeback again. Different from the previous focus on "national complex", this time, in addition to emphasizing autonomy and control, IPv9 also brings in concepts such as Internet of things, blockchain, digital currency and smart city, which seems to find a new development direction for itself
in fact, IPv9 originated from an "April Fool's Day joke" of ieft (International Internet standards organization) more than 20 years ago. After being packaged several times in China more than 10 years ago, it was called "Internet of independent innovation" and carried out continuous "promotion and marketing"
recently, the Expert Committee on promoting the scale deployment of IPv6 held a "seminar on the development of China's IPv6 instry" in Beijing. While discussing the deployment of IPv6, the experts at the seminar countered and criticized some erroneous statements about the development of the Internet, represented by IPv9, for special purposes in recent years, and called on science and technology to crack down on counterfeits and eliminate the false while reserving the true<
an April Fool's Day joke was taken for granted
the origin of IPv9 is IETF's RFC 1606 on April 1, 1994. The article of this RFC is called "historical view of using IP version 9", written by Julian onions. Different from most international standard texts, the writing style of this RFC is obviously "postmodernist". In this paper, the author first sentenced the death penalty of IPv9, and then "flashback" evaluates the "life cycle" of IPv9 from the perspective of layer 42 routing, address allocation, application and manufacturing
later, Julian onions, the author of RFC 1606, confirmed to the media that RFC 1606 was just a joke and an "April Fool's Day joke". He said that the motivation for writing this article in 1994 was that ring the discussion on IPv6 at that time, some proposals were short-sighted and there was a problem of address waste in the planning, so he made a "joke" with everyone
this kind of joking work has completely changed its flavor after being seen by people who want to do it. Around 2000, with RFC 1606 as the theoretical basis, after careful packaging, the designers of IPv9 launched "decimal network composed of IPv9 and digital domain name", referred to as "IPv9"
the core of IPv9 is that the web address exists as a string of absolute numbers, and users can enter a simple digital domain name, such as "123456", to replace similar ones“ www.abc.com ”Such a domain name. Around the work of IPv9, the designer established a working group - "decimal network standard working group". Its official website describes: "decimal network system is mainly composed of IPv6 address protocol, IPv6 header protocol, IPv6 transition period protocol, digital domain name specification and other protocols and standards."
in the recent promotion of IPv9, the "inventors" of IPv9 have always emphasized the core values of IPv9 as follows: first, IPv9 adopts decimal network, which is an independent innovation; Second, the new Internet concept, new mechanism, rules and protocols proposed by IPv9 can make our country get rid of the situation that the root domain name server is controlled by the United States; Third, IPv9 is designed in China and is not controlled by foreign Internet, so it is more secure and controllable. In the continuous publicity, IPv9 has achieved more obvious publicity effect, and even in some media, IPv9 has been crowned as "a new generation of safe and controllable information network"
from "no response" to "criticism in unison"
in fact, the attitude of instry experts towards IPv9 was very clear more than 10 years ago. In March 2006, in view of the extensive publicity of IPv9 at that time and the principle of taking every new technology seriously, the national information technology expert committee held a forum on IPv9. After listening to the introction of IPv9 by some members of the decimal network working group, the experts seriously studied and analyzed the core ideas of "decimal network" and IPv9, This paper objectively evaluates the characteristics of IPv9, which adopts a new "decimal" address format different from IPv4 and IPv6, but the consequence of adopting a different address format is that people set up barriers to connect with the Internet, which is not desirable on the national public network, can not be standardized, and can not pass the review of domestic experts Immaterial changes have no guiding significance for the development of the Internet, and innovation is impossible
among them, the key and core reason is that IPv9 is not the Internet, but a domain name design. If China adopts this method, it means isolation from the Internet. At that time, Qian Hualin, former chief scientist of the computer network information center of the Chinese Academy of Sciences, asked, "is it good for us if our telephone network and Internet are isolated from foreign telephone networks and Internet?"
instry experts agree that the scientific and objective summary of IPv9 has been made, and there is no need to discuss it too much
however, after a period of silence, the supporters of IPv9 "make a comeback". In addition to emphasizing autonomy and control, they also bring in fashion concepts such as Internet of things, blockchain, digital currency and smart city, which seems to find a new direction for their own hype
the academic circles realize that this technology speculation in the name of "patriotism" can do much more than they think, but every opportunity such technology speculation obtains through marketing may have a serious impact on the future strategic decision-making of the country. Only in this way did the experts and academicians in the instry refute in unison at the "China IPv6 instry development seminar"
experts believe that IPv9 has not been recognized by international academia and instry, and its international impact is negative“ It deviates from the concept of open and innovative Internet development and tries to isolate China's Internet from the global Internet by establishing a "narrow gauge railway". This closed Internet has lost its real significance as an Internet. "
is it technological innovation or technological speculation
what is IPv9? Is it technological innovation or technological speculation“ It's ridiculous to spend time on IPv9. They're not the Internet at all, not even academic fraud; According to them, it is impossible to build a network. After so many years, where is their network? " Wu Jianping, academician of the Chinese Academy of engineering and director of the Department of computer science at Tsinghua University, said this in an exclusive interview
several core innovations are often mentioned in the publicity of IPv9:
first, it adopts decimal system and has more addresses than IPv6. In this regard, Wu Jianping said that more addresses are meaningless. IPv6 addresses already have 128 addresses to the power of 2, and every square meter has 26 addresses to the power of 10. Some people figuratively say that "if the earth is covered with a layer of sand, then every sand can have an IP address.". In other words, it is meaningless to use enough addresses, and it will bring more algorithmic pressure to the Internet, which can not be solved at all. Now the biggest problem faced by IPv6 network is the routing calculation pressure brought by large enough addresses. If it's innovation, isn't it easy to build an IPv6 10 or 8? Second, IPv9 says that the design of the domain name system is a major innovation of IPv9. They believe that if IPv4 or IPv6 is adopted, the United States holds the 13 root domain name servers of the Internet. Once the United States disconnects from providing domain name services to China, China's Internet will not work, and there is no such hidden danger in using IPv9
"this is not the case at all. Internet DNS (domain name system) root server is not the core button of the Internet. " Wu Jianping pointed out that Internet domain name service is an important application service of the Internet, but it is not a basic function of the Internet“ Take the mobile phone address book as an analogy. Now you can make a call directly through the address book, but you can make a call without the address book. You only need to record each phone number; Similarly, without the domain name server, the Internet can still work normally. For example, the dark network has no domain name service at all, but it is still running actively. The most basic way to access the Internet is to access by IP address, resolve the domain name, and finally resolve to a certain IP address. "
in addition, although there are only 13 official root servers in the world, there are hundreds of shadow root servers. Most of the daily access is not to these 13 root servers, but to shadow root servers, which can also assume the functions of global root servers. It is impossible for the global Internet root server operators to shut down all root servers, including shadow servers, at the same time
thirdly, in its publicity, IPv9 said that the Internet was designed by the United States, and the United States owns the ownership of the Internet. If it is very easy for the United States to disconnect China's Internet, can the United States disconnect China's Internet at any time? Wu Jianping said that there is no possibility that the Internet is different from traditional telecommunications. It has no global center, nor is it a hierarchical management model. It is a global network system with equal connectivity, and the networks of all countries are equal. The network structure is completely distributed outside the domain name system, so the Chinese Internet is an important part of the global Internet, not a part of the US internet. The global Internet is a public network in which "you connect me, I connect you" are interconnected and there is no center
fourthly, the publicity of IPv9 can solve the network security problems that perplex the world. In this regard, Wu Jianping said that no design can be perfect. No matter what kind of network architecture, there will be security problems. Before its real large-scale use, all security problems will not be exposed. Compared with IPv4, at the beginning of design, IPv6's security has been an important improvement goal; Many new functions have been added to IPv6, such as automatic encryption. In 2003, when China launched the next generation Internet demonstration project CNGI, experts and academicians analyzed this and drew the basic conclusion: IPv6 will never be more insecure than IPv4. Now, the conclusion should be that IPv6 is definitely more secure than IPv4. For example, the source address authentication technology is to solve the security problem from the Internet architecture level. It is to fundamentally solve the security problem, not to mend. In addition, although IPv6 has solved many security problems, it can not rule out new security problems, but it is sure to be better than IPv4“ It is unscientific and absurd to draw the conclusion that the network will be more secure without even carrying out the test network Wu Jianping said
What reflections can we get from the phenomenon of IPv9
in the United States, the birthplace of the Internet, people have no discussion about IPv9. VINT Cerf, the founder of the Internet, said that the "noise" in the development of the Internet is because its proponents have not yet understood how the Internet works. He also mentioned: "RFC 1606 has long been recognized as a joke on April Fool's day. IPv9 is completely out of the author's imagination. As an Internet architecture, IETF has never recognized IPv9, which violates the rules of the domain name system."
Why are foreign countries not "fooled" by technologies like IPv6? Wu Jianping believes that this is related to the Internet at home and abroad
The most famous nine bitcoin addresses
are the bitcoin addresses of the founder of bitcoin, Nakamoto, which is also the most famous creation address of bitcoin. Due to technical design reasons, the 50 bitcoin has never been able to move
this is all the bitcoin addresses of the U.S. judicial police department. The bitcoin came from the seized Silk Road and was later transferred to the winning bidder in the auction
belongs to Laszlo, the king of bitcoin pizzas. On May 22, 2010, Laszlo hanyecz, a programmer in Florida, bought $25 worth of pizzas (2) with 10000btc, which is the first bitcoin transaction in the real world
belongs to the "French maid", who is an agent of the Federal Drug Enforcement Agency of the United States, also known as Carl M. force. When participating in the investigation of the Silk Road, force disguised as "French maid" took advantage of his position and remitted the stolen money into the address, but in the end force was arrested and prosecuted
is famous for the largest transaction in history, which transferred 500000 BTC at one time, and the value of these bitcoins exceeded 100 million US dollars as early as 2015
for more details, click
now, the more famous OTC trading platform is localbitcoin. Of course, there are also some small third-party OTC platforms with low safety factor, and domestic OTC platforms are basically shut down. It is suggested that you go to OK and fire currency international stations to buy and sell digital currencies such as BCC and eth, and do not conct private secured transactions. The risk is very high.