Ethereum made in China

1.

blockchain includes public blockchain, joint (instry) blockchain and private blockchain. Public chain point-to-point e-cash system: bitcoin, smart contract and decentralized application platform: Ethereum

blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies

blockchain is an important concept of bitcoin. In essence, it is a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of bitcoin network transaction information, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

extended data

according to the different degree of blockchain network centralization, three kinds of blockchains under different application scenarios are differentiated:

1. The blockchain with the whole network open and without user authorization mechanism is called public chain

2. The authorized nodes are allowed to join the network, and the information can be viewed according to the authority. It is often used in the inter agency blockchain, which is called alliance chain or instry chain

3. All the nodes in the network are in the hands of one organization, which is called private chain

alliance chain and private chain are also called licensing chain, and public chain is called non licensing chain

blockchain features

1, decentralization. Blockchain technology does not rely on additional third-party management institutions or hardware facilities, and there is no central control. In addition to the self-contained blockchain itself, each node realizes information self verification, transmission and management through distributed accounting and storage. Decentralization is the most prominent and essential feature of blockchain

2. Openness. Blockchain technology is based on open source. In addition to the private information of all parties involved in the transaction is encrypted, the data of blockchain is open to everyone. Anyone can query blockchain data and develop related applications through the open interface, so the information of the whole system is highly transparent

3. Independence. Based on consensus specifications and Protocols (similar to various mathematical algorithms such as hash algorithm used by bitcoin), the whole blockchain system does not rely on other third parties, and all nodes can automatically and safely verify and exchange data in the system without any human intervention

4. Safety. As long as 51% of all data nodes cannot be controlled, the network data cannot be arbitrarily manipulated and modified, which makes the blockchain itself relatively safe and avoids subjective and artificial data changes

5. Anonymity. Unless there are legal requirements, technically speaking, the identity information of each block node does not need to be disclosed or verified, and the information can be transferred anonymously

2.

1. The price of BTC and eth you see on this platform is not the real price against the US dollar, but the price in usdt, which is priced in OTC legal currency. Their ups and downs are all calculated in terms of usdt. All three of them are virtual currencies, just currency transactions, not real dollar prices

2. Usdt is a complete domestic counterfeit currency, formerly known as realcoin, but it has just changed its name. Realcoin is the second generation of domestic counterfeit currency, and the first generation is called chncoin Chinese currency. Both of them collapsed successively in 2013 and 2014

3. The actual value of usdt can be said to be equal to 0. Teda Company, which issued usdt, stopped providing any services to American citizens, that is to say, Teda Company could not provide usdt to us dollar

extended information:

1. Fire coin is a safe and reliable bitcoin trading platform in China. It has won a round of ten million RMB capital investment from Zhenge fund, Dai Zhikang, Sequoia capital (shareholders of many world-famous companies such as apple and Alibaba). Fire coin implements strict risk control management and operates stably. As of the end of 2016, the accumulated turnover of fire currency reached 200 billion yuan

2. In the future, fire coin will mainly focus on overseas transactions. Founder Li Lin said in an open letter that he is currently carrying out five major businesses around the world, including fire coin global professional station, fire coin Korea, fire coin China, fire Coin Wallet and fire coin global dollar station. Among them, fire coin China focuses on blockchain technology R & D and application information, while fire coin Korea and fire coin global dollar station will continue to provide local legal currency to digital currency digital asset trading services

3. As a typical representative of virtual currency, bitcoin's fall has directly or indirectly affected related instries. The news of players' wealth shrinking and mining machinery selling by Jin emerge one after another. As investors become cautious about virtual currency investment, the market is in a downturn. Facing the sluggish market, players can not see the hope of investment, so it is inevitable that virtual currency has no future. However, there are also players in low-key bottom hunting, that bitcoin led virtual currency, has great investment value< br />
The essential value of any kind of currency is that it can be used as the value scale to measure other things and has stability. The virtual currency here is not game currency, but a digital cryptocurrency like bitcoin. The bottom layer uses blockchain technology, which has the characteristics of decentralization, information tampering and anonymity. At present, cryptocurrency headed by bitcoin can not bear the property of currency. It is not fair to conclude that there is no value

a consensus has been reached in the currency circle by default, that is, bitcoin is similar to diamonds in the real world. The value of diamonds is given by businessmen, and it has been agreed that diamonds can symbolize love and have practical properties. Mining diamonds and gold also need to consume a lot of costs, but it is because a lot of costs are consumed that the constant intrinsic value of diamonds and gold can be ensured. The resources that can be obtained casually are prone to inflation< br />
The fall in 2018 makes investors return to rationality, which is actually concive to the standardized development of the currency circle. Now, regardless of the practical value of digital currency, this capital harvest makes investors further understand the importance of risk management. Money circle and Internet Finance allow investors to see that they are profitable, so they don't have to think about investing in it. It is ultimately their own loss. Whether this bear market can make investors understand the essence of money circle is still unknown. However, the future development of the coin circle still needs government regulation, as well as the regular operation of platforms and projects. Of course, only with the support of capital can the coin circle develop healthily and systematically. Therefore, capital outflow is the biggest reason for bitcoin's sharp decline.

4.

Blockchain is a new application mode of distributed data storage, point-to-point transmission, consensus mechanism, encryption algorithm and other computer technologies. Blockchain is an important concept of bitcoin. It is essentially a decentralized database. At the same time, as the underlying technology of bitcoin, it is a series of data blocks generated by using cryptographic methods. Each data block contains a batch of information about bitcoin network transactions, Used to verify the validity of its information (anti-counterfeiting) and generate the next block

if such technology wants to be put into application, the biggest problem is the "Impossible Triangle problem"

that is, scalability, decentralization and security cannot be achieved at the same time, and only two of them can be achieved

most of the existing public chain projects in the market are difficult to put into use on a large scale

5. There are thousands of virtual currencies in China, and the virtual currency circle is mixed and uneven. MLM money is very rampant. There are countless people who run away, die and live every day
among them, the leading ones of domestic virtual currency are Yuanbao coin, Ruitai coin and bitcoin. These are sentimental currencies.

6.

Generally, the excellent digital currencies are mostly imported procts, such as bitcoin, Leyte coin, ether coin and so on. However, the domestic Yuanbao coin, Ruitai coin, bitcoin and the tokens of different crowdfunding projects of European crowdfunding are excellent digital currencies

< H2 > development materials

digital currency (English: digital currency) is an alternative currency in the form of electronic currency. At present, no central bank of any government has indicated that it will issue digital currency, and digital currency does not have to have a benchmark currency and a central bank

it is different from the virtual currency in the virtual world, because it can be used for real goods and services transactions, not limited to online games. The early digital currency (digital gold currency) is a form of electronic currency named after the weight of gold. Today's digital currency, such as bitcoin, lightcoin and ppcoin, is an electronic currency created, issued and circulated by check sum cryptography

7. Xiaoyi blockchain, laikelib and many others seem to be very successful.

8. Domestic mainstream exchanges all support the purchase of RMB, but it's better to go to the larger exchange like okex, so as to have some protection. Secondly, it is suggested that before purchasing bitcoin, we should have a deep understanding of the market and some price fluctuations of bitcoin. Bitcoin has many problems in the market economy environment, which will affect the price of bitcoin. If you are satisfied with my answer, please accept it

9. In 2020, I'm afraid we can't simply assert that "computers are faster than human brains"
when you calculate the results of a hundred complex formulas, the computer must be fast
however, if it is to analyze a voice or a picture, it is difficult for a computer to surpass human beings.