Donation calculation
From the current mainstream blockchain projects, blockchain projects are mainly divided into four categories: the first category: currency; The second is platform; The third category: application category; The fourth type: asset token
currencies mainly act as the "exchange media" in the field of blockchain assets, and the exchange media refer to general equivalents, such as gold and silver bills in the past< (currency exchange on trading blockchain assets)
platform projects refer to the establishment of technical platforms to meet the needs of various blockchain application development, which can rece the threshold of application development on blockchain
application projects cover a wide range of fields, including finance, social networking, games, property rights protection, etc., and are also the fastest growing fields of blockchain assets
asset token project refers to the blockchain mapping of physical assets, that is, the physical assets on the chain. At present, there are no more than 10 varieties
01 currency
the first category is currency project, which is also the earliest blockchain project. Currency projects mainly include bitcoin and lightcoin. In addition, there is another kind of asset with the characteristics of anonymity. Its main functions include protecting the privacy of both sides of payment while realizing payment. The well-known ones are dash, monero and zcash. Currency is mainly used as the "exchange medium" in the field of blockchain assets. The exchange medium is the general equivalent you use to exchange goods. For example, gold, silver and silver bills can be used as the exchange medium in the past. At present, there are more than 2100 types of digital assets in the world, and the number of currency blockchain projects has increased rapidly recently. As of June 2018, bitcoin is still the largest market value
02 platform type
the second type is platform type blockchain project. The main function of platform type blockchain project is to establish a technical platform to meet the technical requirements of various blockchain application development; In short, platform applications allow developers to directly issue digital assets and write smart contracts on the blockchain. Smart contract is a computer program running on the blockchain database, which can be automatically executed under the conditions of its source code setting
for example, you develop a smart contract based on the house rent protocol on the blockchain. When the owner receives the rent, it will trigger the automatic execution and give the security key of the apartment to the tenant
the main function of platform blockchain projects is to establish the underlying technology platform, so that developers can do application development on the underlying technology platform. A considerable number of platforms are still in the development state. As of June 2018, Ethereum has the largest market value
03 application
the third category is application blockchain projects. Application projects are blockchain projects based on blockchain development platform (such as Ethereum), which can solve many problems in various fields of the real economy
for example, augur, Golem, vechain, omisego, which provides asset exchange and transfer services. Using blockchain technology, these projects can better solve the problems of trust and cross-border circulation. At the same time, using smart contracts and tokens on the blockchain, they can better realize automatic execution and greatly improve the efficiency of social and economic activities. Application blockchain projects cover a wide range of fields, including finance, social networking, games, property rights protection and so on. It is also the field with the fastest market value increment of blockchain projects at present
04 asset token
the fourth category is the asset token blockchain project. Asset token refers to linking the blockchain assets to physical assets such as gold and US dollars, which is the blockchain mapping of physical assets. As of February 2018, there are no more than 10 varieties. The typical representatives are usdt against US dollars, digix Dao against gold, Digix each token represents 1 gram of Gold Certified by the London Bullion Market Association. Asset token has the advantages of convenient transaction and safekeeping. First of all, asset token is more convenient for transaction. Because blockchain assets can be split, it has better liquidity
for example, at present, real estate needs to be transferred as a whole. If the real estate can be token, it can be split and purchased, which is more convenient for transaction. Secondly, the token of physical assets is more concive to custody. Gold is easy to wear out and cause losses in physical transactions, but there is no need for physical transfer after the token of physical assets, which is more concive to the custody of physical assets
Fourth, decentralization. Decentralization is the most basic feature of the blockchain, which means that the blockchain no longer depends on the central processing node and realizes the distributed recording, storage and updating of data. In the traditional centralized network, attacking a central node can destroy the whole system, while in a decentralized blockchain network, attacking a single node cannot control or destroy the whole network. More than 5% of the nodes in the master network are just the beginning of gaining control. 2019 is the first year for the commercial application of blockchain technology, and the stimulation of favorable policies will make the development of blockchain technology more stable
with the application of blockchain technology graally penetrating into many fields such as digital finance and Internet, we have a clearer understanding of the value of blockchain
blockchain has formed a situation of global competition, and all countries are seizing the development opportunities, let alone China; Therefore, there is no doubt that blockchain has become a national strategy.
the 8000 yuan computer basically can't dig a mine. You can't even dig 0.1 in a year, because compared with the ASIC miner, its computing power is too small. However, it is suggested that you can participate in the WCG project to obtain reborn coins, or dig up easy counterfeit coins such as prime money and dog money, and then sell them on the platform to exchange for bitcoin
just for personal point of view, don't spray if you don't like it, thank you.
it's not as safe as gold
The University of science and technology of China is indeed a university with many masters and elites. She built for the two bombs and one satellite, and implemented the policy of "running the school in the whole college, combining the departments." at the beginning of its establishment, she gathered a group of famous scientists, such as Yan keci, Hua Luogeng, Qian Xuesen, Zhao Zhongyao, Guo yonghuai, Zhao Jiuzhang, Bei Shizhang, etc. . It should be clarified here that Mr. Qian Xuesen, mentioned by the subject, did not "come out of this school". Professor Qian Xuesen is the head of the thirteen departments of the University of science and technology of China. He has been famous for a long time since the establishment of the University. He has played an immeasurable role in the construction of the University
All in all, most of the achievements of HKUST alumni are concentrated in the field of scientific research. Thank you for reading. I hope it can help you1. Radar is a popular blockchain application platform in China, and radar wallet is a popular blockchain international wallet< The br />
2. radar wallet is like the global Alipay. As long as the deposit is in the purse system, it will be presented to the radar money every day, and it will be compound profit and profit on the day. The annual revenue will be as high as 300%.
3. To put it more simply, it is similar to MasterCard, except that the traditional bank card is legal currency for deposit, withdrawal and transfer, such as RMB, US dollar, pound sterling, etc., while the radar wallet can not only deposit, withdraw and transfer legal currency, but also deposit, withdraw and transfer digital currency
4. In addition, digital currency in radar wallet is equivalent to financial management. Of course, you can also transfer money online or exchange (various currencies) to earn the price difference. The premise is: must be able to operate! Simultaneous interpreting, like traditional bank cards or Alipay, will not save money and make money transfer. p>
radar currency is an internet financial tool, which helps users to pay, transfer and freely convert global currency simply, quickly and at low cost
is a kind of virtual currency, which, like reborn and bitcoin, is secure through three technologies: open source, decentralization and no central server
has the property of currency, and is also a financial trading platform, which can break financial barriers and prevent inflation; Stronger connectivity, opening up the global financial Island, recing the resistance of the financial system, enhancing efficiency, and building a global unified Internet financial system
BTC 2009 Satoshi Nakamoto is bitcoin / org ~ $24.3 billion is SHA-256; LTC 2011 coblee is litecoin / org ~ $3.6 billion is script infinite; IFC 2012 ifccion is ifccoin / org ~ $20 million is script quark qrk 2012 qrkcion is cgbcion / org ~ US $10 million is scrpt zeta coin, 2012 zetcony is ZET / org ~ US $10 million is scrpt proof of work / POS how to distinguish black heart coin. So how to distinguish these black heart coins
with the popularity of Shanzhai coin market, some unscrupulous developers, after developing a virtual coin, organize themselves to take a part of the total amount of virtual coin issued as their own before putting it on the market. This proportion is generally less than 2%, and a few even reach 90%. When the virtual currency has a certain value or on the trading platform, a large number of sell-off cash, so that miners and investors suffer huge losses, so the first factor to choose virtual currency is zero pre dig. So how to distinguish whether a virtual coin is zero pre dig? Here is the identification method. 1. Play the wallet and wait for the wallet to complete synchronization. Open the wallet - "help" - "debug window" - "console" 2. Input the command: getblockhash block. For example, input: getblockhash 1 to get the hash value of the first block. Input the command: getblock just got the hash value. We input: getblock to find the value of TX, Here we are: we enter: getrawtransaction 1 (the space 1 above and behind should not be omitted) 5. In the information, the value value is the content of this block: 8.00000000, which is the currency quantity of the first block. This query method is common to all virtual currencies
e to the irreversibility of virtual coins, unscrupulous developers need to pre dig a large number of virtual coins as soon as possible. They have to set a large number of 1-N early blocks to implement pre digging. This is a dilemma. The author who has no pre dig has no motivation to maintain it. There is a risk that the author will cash out and smash the market maliciously if there are too many pre digs. Generally speaking, the author will use part of the pre digs for promotion and maintenance, but the pre digs generally do not exceed 2%. But in practice, many authors have done a lot of pre excavation
1. For example, Wolong, the author of Panda Coin (transaction code: PND), had a serious pre excavation. When he went public, the author smashed 18e coin directly into the market, from 200 Cong bitcoin to the price of Jicong bitcoin. At the same time, the domestic promotion QQ group was disbanded, a large number of investors were deeply locked, resulting in a very bad impact
2. For those who are lucky in disguise, e to the failure of the author's pre dig, such as moleculars (transaction code: mol), the author stole about 10 million (total 2e) after the release of the coin. At that time, it caused a big stir in the foreign Shanzhai coin forum. Some Shanzhai coin lovers directly used big computing power (51% computing power attack) to cause the currency to split, After the restart of the block, all the pre g coins were lost, resulting in that the total amount of the coin is only 1.9e, because the zero pre g coin caused by the accident aroused the interest of the majority of coin friends, and the computing power of the whole network once exceeded 200g. At present, the author's maintenance power comes from the donation and reward of fans at home and abroad, and the author's enthusiasm for coin friends is unexpected
therefore, instead of worrying about pre excavation and no pre excavation, we should pay more attention to the amount of pre excavation and the purpose of pre excavated coins. It is recommended that you do not play with more than 2% of the pre g coins. The so-called POW refers to the proof of work, that is, the proof of work. In short, it is to get rewards through calculation, and it can be calculated by mining machine or computer CPU, GPU, etc., that is the so-called mining. Investors can get it by buying it from home or digging their own mines. Relatively fair, early investors can not monopolize the quantity and price of currency. Representative currency: bitcoin, etc
the so-called POS refers to the proof of stock. In this way, currency investors can only buy from the previous home, which is similar to the pyramid style. The distribution is extremely unfair. Many currency investors get a lot of currency at the initial stage, and later can only get it from the initial investors at a high price, which leads to the monopoly of the initial investors on the currency price. Representative currency: NXT, etc
the so-called IPO is more similar to crowdfunding in the field of Shanzhai currency, that is, the author or company initiates the investment target, and domestic and foreign investors invest and obtain a certain amount of currency or options. This kind of representative currency: PTS, etc. However, e to 3I company, PTS has been delayed again and again, which has a great impact on investors' confidence
Wow, as a member of HKUST, it's really exciting to see this problem! Now I'd like to introce some famous alumni of HKUST that I know
first of all, Mr. Pan Jianwei. Our classmates affectionately call him pan Shen. His most famous achievement recently is his achievements in quantum communication. He has published many articles on nature. On scientific research, Mr. Pan is really an admirable Professor