Number of digital currency players

1.

The total number of bitcoins is 21 million

in 2009, when bitcoin was born, block reward was 50 bitcoins. Ten minutes after its birth, the first 50 bitcoins were generated, and the total amount of money at this time is 50. Then bitcoin grew at a rate of about 50 every 10 minutes. When the total amount reaches 10.5 million (50% of 21 million), the block reward will be halved to 25

when the total amount reaches 15.75 million (5.25 million new output, i.e. 50% of 1050), the block reward will be further halved to 12.5. The monetary system used to have no more than 10.5 million in four years, after which the total number will be permanently limited to about 21 million

extended data

monetary characteristics

1. Decentralization: bitcoin is the first distributed virtual currency, and the whole network is composed of users without a central bank. Decentralization is the guarantee of bitcoin's security and freedom

2. Global circulation: bitcoin can be managed on any computer connected to the Internet. No matter where you are, anyone can dig, buy, sell or collect bitcoin

3. Exclusive ownership: private key is needed to control bitcoin, which can be stored in any storage medium in isolation. No one can get it except the user himself

4. Low transaction cost: bitcoin can be remitted free of charge, but a transaction fee of about 1 bitfen will be charged for each transaction to ensure faster transaction execution

5, no hidden cost: as a means of payment from a to B, bitcoin has no cumbersome limit of quota and proceres. If you know the other party's bitcoin address, you can pay

6. Cross platform Mining: users can explore the computing power of different hardware on many platforms

2.

1. Enjin (enj)

in the near future, the game instry is the instry most likely to adopt blockchain on a large scale. Enjin coin is the cryptocurrency of virtual goods created by Enjin. Enjin is the "largest online gaming community platform" with more than 250000 gaming communities and 18.7 million registered gamers

Cardano (ADA)

compared with Ethereum, EOS and Tron, Cardano is the third generation of decentralized app (DAPP) and smart contract platform. Cardano's design philosophy has the following points:

scalability: with the growth of users, the transaction processing speed is not affected or even faster, such as P2P protocol

interoperability: in the future, there will be countless devices connected to each other, instead of only connecting and forwarding through routers. All kinds of devices can communicate directly through standard general protocol

Sustainability: like bitcoin, Cardano project will not be controlled and influenced by a certain company or organization, which is a safe, decentralized and sustainable development platform

With the popularity of sto (security token offers), Nash also plays an important role. Nash is a kind of registered security token. In the past, Nash participated in and led the development of many projects

Nash exchange is a decentralized exchange. If you hold nex token, you can calculate the dividend here

4. Basic attention token (BAT)

bat mainly solves the problem of advertising:

user information is abused: large companies such as Google and Facebook track and use user information and behavior, and sell without the knowledge of users

the effect of advertising is restrained: middlemen earn most of the fees, a large number of advertisements are blocked by users using software, and advertisements are fake

in the past six to 12 months, the number of publishers using the brand browser (Note: the brand browser supports bat token) has grown rapidly, and almost no blockchain ecosystem has grown so fast

5, chainlink (link)

chainlink mainly solves the problem that each blockchain has and the smart contract cannot obtain external data. In order to introce external data into the blockchain, the concept of Oracle is proposed in smart contract

companies including Google are supporting the development of chainlink. Here is a list of chainlink partners

one of the main problems of chainlink is similar to Ethereum. The development team has reserved 650 million link tokens, while only 350 million are in circulation at present

Ethereum (ETH)

Ethereum has long occupied the second place in the top 100 cryptocurrencies. Its ecology is so big that we can't call it altcoin now. To tell you the truth, I'm not optimistic about Ethereum in the long run, but it will flourish in the short run

3.

digital currency is an unregulated and digital currency, which is usually issued and managed by developers and accepted and used by members of a specific virtual community. The European Banking authority defines virtual currency as a digital representation of value, which is not issued by the central bank or authorities, nor linked with legal currency. However, because it is accepted by the public, it can be used as a means of payment, or it can be transferred, stored or traded in electronic form

in recent years, the excessive issuance of banknotes has led to the aggravation of inflation, the frequent security crisis of third-party payment, and the graal maturity of blockchain technology, so decentralized digital currencies such as bitcoin, Ethereum and reborn have emerged. Digital currency has the advantages of low transaction cost, fast transaction speed, high anonymity and fixed amount of money

At the same time, the use scenarios of digital currency become more and more abundant, which makes the user acceptance grow. At present, the use of digital currency has covered all kinds of scenes, such as shopping consumption, wage payment, transportation, travel, takeout settlement and tuition payment. The expanding landing scene has also brought a wider range of consumers. In general, although the number of users of digital currency still accounts for a small proportion of the total population, the number of users is growing. At present, the utilization rate of digital currency has exceeded 10% in 10 countries around the world

In June 2019, Facebook launched Libra virtual cryptocurrency, which has caused worldwide influence. The emergence of Libra may form a global super sovereign currency, thus affecting the traditional transaction settlement currency. For China, the emergence of Libra, on the one hand, will have an impact on China's traditional currency and threaten the sovereign status of China's currency; On the other hand, because RMB is not included in Libra's basket of currencies, it will rece the reserve demand of RMB by central banks, thus hindering the internationalization of RMB. In response to this threat, CCTV timely launched the central bank digital currency. In September 2019, according to China Daily, the central bank's digital currency closed-loop test has begun, and the central bank's digital currency is about to come out

coincidentally, in addition to China, central banks around the world have also announced that they will launch a centralized digital currency based on national credit. In 2015, Ecuador took the lead in launching the national version of digital currency, which can not only rece the issuance cost and increase the convenience, but also enable people in remote areas who cannot have banking resources to obtain financial services through the digital platform. At present, Canada, Brazil, Norway, the United Kingdom and other countries are studying the central bank legal digital currency, while the Bahamas, Sweden, Russia and other countries are discussing the possibility of digital currency issuance. Generally speaking, the developing countries which have received a great impact on digital currency have supported legal digital currency for financial inclusion, breaking through sanctions and other reasons

for the above data and analysis, please refer to the in depth analysis report on business model innovation and investment opportunities of China's blockchain instry published by foresight Instry Research Institute . Meanwhile, foresight Instry Research Institute also provides instrial big data, instrial planning, instrial declaration, instrial park planning, instrial investment promotion and other solutions