Tencent cloud blockchain
Ma Huateng: blockchain, line; ICO, no way
at the two sessions, Ma Huateng said that the topic of blockchain has been very hot recently, and even some people teased that the Internet before blockchain was "classical Internet". Although blockchain technology is innovative, how to make good use of this technology is another problem
in Ma Huateng's view, blockchain technology can be applied in many fields, especially in the aspect of the uniqueness of digital authentication objects. Just like a file or bill in reality, blockchain technology can be used to ensure that they cannot be copied or tampered with. Compared with traditional IT technology in the past, blockchain has epoch-making significance in truly simulating the uniqueness of documents and receipts in real society
Ma Huateng thinks that there are still many risks in doing digital currency ICO. "If everyone can issue digital currency freely with blockchain technology, it will cause a lot of regulatory problems," he said
for example, the golden red envelope project in the 2017 Spring Festival internal test is Tencent's attempt to record users' digital assets with blockchain technology. In addition, Tencent also uses blockchain technology to rece the problem of information asymmetry
in addition to finance and public welfare, Tencent also reached a cooperation with Intel in September 2017, announcing that both sides will jointly develop blockchain technology to improve the security protection capability in the Internet of things scenario
as the underlying technology of bitcoin, block chain has broken through the financial instry, especially with the emergence of the alliance chain technology, the block chain can become the core technology of "Internet plus". At the May 2015 Guiyang big data Expo, Ma Huateng emphasized that "Internet plus" is also a kind of connection ability. Then, Tencent naturally will not miss the block chain, that is, the "Internet plus" era connector.
the micro public bank led by Tencent has started to practice in the exploration of blockchain
in May 2016, Weizhong bank participated in and launched the financial blockchain cooperation alliance (hereinafter referred to as "jinlianmeng") in Shenzhen, China. In June, it launched the alliance chain cloud service based on Tencent cloud. At the end of September, it reached a cooperation agreement with Wanxiang Group ring Shanghai blockchain international week
this series of signals shows that Tencent has entered the competition of blockchain and is trying to make blockchain the next connector (from Netease News)
Ethereum has built an intelligent contract platform by using blockchain technology; European crowdfunding uses blockchain technology to serve the real economy, making crowdfunding more open and transparent.
crude oil index refers to a combination of the main contracts of the NYMEX light and low sulfur crude oil futures contract. When the main contract is in the period of 1-12 months, the price of that month will be used for the quotation of crude oil index. The world crude oil trade has formed three major markets in North America, Europe and Asia. Each market has price index crude oil, namely WTI crude oil, Brent crude oil in the North Sea and Du crude oil from the Middle East. Among them, the best quality is the futures price of WTI crude oil. WTI refers to the light crude oil from West Texas, which is a common crude oil futures price in North America. Due to the U.S. military and economic capabilities in the world, WTI crude oil has become the benchmark of global crude oil pricing
P / E ratio is the ratio of market price per share to earnings per share of a stock. Market widely talked about P / E ratio, usually refers to the static P / E ratio, which is usually used as an indicator to compare whether stocks with different prices are overvalued or undervalued. It is not always accurate to measure the quality of a company's stock with P / E ratio. It is generally believed that if the price earnings ratio of a company's stock is too high, the price of the stock is bubble and its value is overvalued.
on the surface, bitcoin is based on special algorithms and cryptography principles to ensure that the number of exclusive global currencies without issuers is limited and can not be added at will. However, apart from specialization, other features do not meet the requirements of currency
the first is "no issuer", which is regarded as the symbol of "e-money" freedom. However, from the perspective of the development of bitcoin, the price of this freedom is huge, so that no region dares to implement complete bitcoin transactions, and only a few approve the circulation. When we hold a traditional currency, national level credit guarantees its value. When the situation is stable, the value of RMB, US dollar, euro and other currencies in your hands is relatively stable, and its basic purchasing power is guaranteed. Without this credit guarantee, the value of bitcoin fluctuates more than any other commodity in history. A few years ago, it was worthless, reaching several thousand dollars at one time. There are many factors to change. In the early stage, it was popularity. The more people involved, the higher the value. Then, the influence of hackers and the closure of trading websites made it plummet. Later, national policies became the main influence. Ironically, bitcoin is most affected by the country because of its freedom. Today, the people's Bank of China issued a notice, and it fell by 35%. Tomorrow, with the same exchange rate in Germany, it rose by 50%. Who will use it as currency? Today you pay a few hundred, and then watch it soar, want to cry without tears, tomorrow you buy a few thousand, plummet on the rooftop line
secondly, its limitation means that economic powers will never use it as a major currency. Maybe Greece will want to rescue it now, but the United States will never give it any chance to challenge the status of the US dollar. If the quantity is limited, the country can not implement its monetary policy. Slow and stable inflation is an important guarantee to stimulate economic development. The mining speed of bitcoin has slowed down greatly now, and it will not be issued one day. There is still an egg to use. Besides, the upper limit is 21 million. Who can use it? Do you need to input 0.000000001 bitcoin for each payment
therefore, to sum up, bitcoin is a virtual commodity with great fluctuation in value and coexistence of risk and return. You can play it as a stock.
IPFs (interplanetary file system) interstellar file system was established by Juan Bennet in May 2014. It settled in Y combinator (successfully hatched airbnb, dorpbox, etc.) which is a famous business incubator in the United States, and obtained huge investment from YC. Meanwhile, Juan Bennet established protocol labs. At present, protocol labs include IPFs, filecoin, libp2p, libp2p, etc Most of the team members of the five independent projects, ipld and multiformats, are from internationally renowned universities, and Stanford University is the majority
the difference between IPFs and http:
Security: http is centralized, and all traffic is directly carried on the centralized server, which carries great pressure and is easy to cause system crash. HTTP is also vulnerable to DDoS attacks; The storage mode of IPFs is decentralized and partitioned distributed storage, which can not be attacked by hackers, files are not easy to be lost, and security is guaranteed
efficiency: http relies on the centralized service network, so the server is easy to be shut down and the files on the server are easy to be deleted. The server needs to be turned on 24 hours; IPFs adopts P2P network topology, all computers in the whole network can become storage nodes, and the nearby distributed storage greatly improves the network efficiency
cost: http centralized server needs high maintenance cost. Once the centralized database is attacked by DDoS or damaged by force majeure, all data will be lost; IPFs greatly reces the cost of server storage and bandwidth
The majority of HTTP customers' network access is not localized, with network delay. IPFs can greatly accelerate the speed of network access, and the sense of experience will be significantly improved
the use scenarios of IPFs:
< UL >as a mounted global file system, mounted in IPFs and IPNs
as a mounted personal synchronization folder, automatic version management and publishing, As an encrypted file or data sharing system, as the version package manager of all software, as the root file system of virtual machine, as the boot file system of VM, as a database, applications can write data directly to Merkle da In G data model, obtain all versions, buffers, and IPFs provided allocation
as a linked (and encrypted) communication platform
as a CDN for integrity check of large files (without SSL)
as an encrypted CDN
on Web pages, As a web CDN
as a link, there will always be a new and eternal web