Virtual currency without market trading
1. bitcoin
the concept of bitcoin was first proposed by Nakamoto in 2009. According to Nakamoto's ideas, open source software was designed and released, and the P2P network was built on it. Bitcoin is a kind of P2P digital currency. Point to point transmission means a decentralized payment system
2, Ethereum
Ethereum (ETH) is a kind of digital token of Ethereum, which is regarded as "bitcoin version 2.0". It adopts the blockchain technology "Ethereum", which is different from bitcoin. Developers need to pay for eth to support the operation of the application. Like other digital currencies, they can be traded on trading platforms
3. Litecoin
litecoin It is a kind of network currency based on "peer-to-peer" technology. It is also an open source software project under MIT / X11 license. It can help users make instant payments to anyone in the world
lightcoin is inspired by bitcoin (BTC) and has the same implementation principle in technology. The creation and transfer of lightcoin is based on an open source encryption protocol and is not managed by any central organization
Dogcoin, which is called dogcoin / dogcoin by some people, was born on December 8, 2013. Based on the crypt algorithm, dogcoin is the second largest virtual currency in the world after bitcoin in terms of the number of usersdigital currency is a global common currency initiated by non-governmental organizations. It does not belong to a certain country, but belongs to all mankind. It has the advantages of fast global transfer. For example, it can remit money from China to the United States in a few seconds, and the cost is low, and the total amount will not be increased at will like legal money, so the total amount is relatively stable
Yuanbao coin is a virtual digital currency similar to bitcoin. The founder of yuanbaocoin is a group of bitcoin enthusiasts and the earliest supporters. However, after seeing the problem of bitcoin, he decided to do his best to develop an electronic currency suitable for Chinese people with the latest technology Ppcoin was pre released by sunny king on August 11, 2012 and officially released on August 19, 2012. Ppcoin's biggest innovation is that its mining method combines POW workload proof and POS equity proof. POS mining method only needs ordinary computers and clients to process transactions and maintain network security, so as to achieve the purpose of energy saving and security Katecoin (KTC) is a virtual P2P digital currency that can be used all over the world. Point to point transmission means a decentralized payment systemin businesses that support Kat coin consumption, you can directly use Kat coin for consumption payment
8, quark money
based on six encryption algorithms (black, BMW, groestl, JH, keccak, skein), nine rounds of super secure hash operation of virtual money, three rounds of application of random hash function, quark money has unique technical specifications
9, infinity coin
infinity coin (IFC) is a new digital currency, which has more circulation advantages than bitcoin, and fills the short board of bitcoin in the field of commercial circulation and promoting commercial operation
one transaction of infinite coin needs three confirmations, each confirmation takes 30 seconds, and the transaction confirmation speed is very fast. Because bitcoin transaction needs 6 confirmations, which takes about 1 hour, and lightcoin transaction takes 15 minutes, infinite coin is used in daily common transactions, which is more practical
Common coin, English name popular coin, or POC, was born on March 7, 2014. The total POC is close to the world population (7.057 billion)POC is a super secure hash operation based on nine rounds of six encryption algorithms (Blake, BMW, groestl, JH, keccak, skein), which is suitable for CPU mining. It generates a block every 15 seconds, with a total of 7.057 billion (close to the world population)
extended data
virtual currency refers to non real currency. Well known virtual currency, such as network company's network currency, Tencent company's Q currency, Q point, Shanda company's voucher, Sina's Micro currency (used for micro games, Sina reading, etc.), chivalrous Yuanbao (used for chivalrous road game), silver pattern (used for bixue Qingtian game)
the popular digital currencies in 2013 are bitcoin, Leyte coin, infinite coin, quark coin, zeta coin, BBQ coin, pennies (Internet), invisible gold bar, red coin and prime currency. At present, hundreds of digital currencies are issued all over the world. Popular in the circle & quot; The legend of "bitcoin, Wright silver, infinite copper, pennies aluminum"
1. The website belongs to the company operation, and the company's information is open and transparent
2. The website has been registered with the Ministry of instry and information technology, requiring users to carry out real name authentication
3. The platform is a third-party trading platform, not created by the operation team of virtual currency
well known virtual currency trading platforms include bitcoin China trading platform, Fuyuan Trading platform, biter, bitera, etc.
a small exchange may not need money, and you can even set up your own exchange for $1.2 million
large exchanges, such as fire currency and currency security, should be more than 10 million RMB
for example, some time ago, the voting cost of huocoin was about 30 million yuan
finally, the scope of blockchain is relatively large, not just sending a token to the exchange. Therefore, the exchange on the blockchain is a sick sentence.
at present, bitcoin, Wright coin, reborn coin, doggy coin, Fuyuan coin and so on are well-known digital currencies in the world.
Chinese name
market index
base date
December 19, 1990
base date index
100 points
type
financial
classification
Shenzhen stock index
fast
navigation
investment income index type stock index external evaluation
calculation method
when calculating stock index, stock index and stock price average are often calculated separately. By definition, the stock index is the average stock price. However, in terms of their actual effects on the stock market, the average stock price is the general level reflecting the price changes of various stocks, which is usually expressed as the arithmetic average. By comparing the average stock price in different periods, people can realize the change level of various stock prices. The stock index is a relative index reflecting the changes of stock price in different periods, that is, the percentage of the average stock price in the first period as the benchmark of the average stock price in another period. Through the stock index, people can know the percentage of the increase or decrease of the stock price in the calculation period compared with that in the base period. Since the stock index is a relative index, the stock index can measure the change of stock price more accurately than the average of stock price for a long time
1. Calculation of the average stock price
the average stock price reflects the absolute level of the listed stock price at a certain time point. It can be divided into three categories: simple arithmetic average stock price, modified average stock price and weighted average stock price. People can see the change and trend of stock price by comparing the average stock price at different time points
(1) simple arithmetic average stock price