In fact, as early as July 25, coinbase included the price display of nest. Although coinbase has not indicated that it is evaluating the launch of nest, the signal that nest has been paid attention to by coinbase in the field of defi is still very intriguing. And the fire currency went online nest, obviously in front of coinbase. < / P > < p > it is reported that this year’s fire coin launched the Devi carnival season. At present, the fire coin’s defi plate has covered such tracks as prophecy machine, pledge loan and going to the central exchange, providing users with the most complete defo investment services from spot, leverage to contract, and has become a one-stop trading platform for investment in defi. < p > < p > on August 7, the star project nest protocol, which was announced to be launched on August 7, is a distributed price Oracle network, which solves the price chain problem through decentralized incentive scheme. < p > < p > < p > the fire coin defi plate + prophecy track + coinbase effect. It has to be said that in addition to the well-known chainlink, only the nest protocol has received much attention recently. As the future of the new generation of prediction machine, nest is likely to be the power to subvert chainlink. Why do we say that? < / P > < p > we have to start with the fever of defi in the first half of this year. In the past six months, the most remarkable one has been the explosive revolution of defi. As of July 27, the total lock up amount of defi has exceeded US $4.3 billion. In the first half of this year, the market value of the project has increased fivefold, and on July 22, it has exceeded $10 billion. < / P > < p > defi is so popular, and the most popular track is the oracle. For example, when coinbase announced the launch of chainlink, a well-known Oracle project, in June last year, its token link rose from US $3.04 to US $12.35 in about a year. The market value of link also ranked among the top ten cryptocurrency market value, and it is also the largest defi project with market value. < / P > < p > why is Oracle the most popular? Because most of the defi projects need Oracle, their ecosystem needs to rely on the oracle to connect the online and offline data sources to obtain data such as commodity and cryptocurrency prices. < / P > < p > generally speaking, the decentralized Oracle is like a bridge and link connecting the defi world and the real world. In the application scenarios such as lending, insurance, stable currency, decentralized leverage trading, financial derivatives trading and other application scenarios involved in the defi project, it is necessary to safely connect the real-world data with the blockchain system, help smart contracts connect the real-world data, and realize the data interaction between the blockchain world and the real world. < / P > < p > the top Oracle projects represented by chainlink and nest quickly stand out in this wave of defi prosperity and stand at the core of this “defi revolution”. For example, Wechsler ratings, a cryptocurrency rating agency, recently said that with billions of dollars of collateral mortgaged, the defi platform has become hot. The Oracle not only gives defi, but also everything the second and third generation cryptocurrencies do. < / P > < p > it is not difficult for us to understand why defo, Oracle and nest are at the core of this encryption revolution. < / P > < p > in order to expand the application scenarios and realize the application landing, the projects in the blockchain industry must break through their own limitations and connect with the vast external world, and the Oracle is just to help the blockchain projects break through the important infrastructure. However, in terms of data, the mapping between the data on the chain and the data under the chain is always a difficult problem to solve. Even if the problem of data is solved, there is also the problem of accuracy. If you want to obtain real and accurate external data on the chain, you need to use an extremely reliable Oracle scheme. After all, huge losses have occurred due to the Oracle or data source error. < / P > < p > for example, synthetix, a well-known derivatives trading platform, lost more than 37 million Seths in June 2019 due to the use of its own centralized oracle. What kind of Oracle is safe and reliable? At present, the existing Oracle machines in the market actually have some problems, such as single point of failure, vulnerability and so on. < / P > < p > for a long time, there are only a few high-quality projects in the prophecy track, and the more famous one is chainlink. Indeed, this year, in the wave of defi, the link token has made a good leap, with a maximum increase of five times. < / P > < p > but chainlink’s dominant position in the prophecy track has been shaken, and the challenger is nest protocol. For example, it is very interesting to predict that there are few projects in the market. From the perspective of the existing Oracle schemes in the market, Oracle machines are mainly divided into two categories: indirect Oracle and direct oracle. In the former, the former forms the price chain through the data chain. As a direct Oracle, nest defines and implements a brand-new scheme to generate price on the blockchain. It uses the market game theory to produce the price of the off chain market synchronously on the chain through the way of miners’ two-way quotation, and combines with the mining mechanism of nest quotation to motivate the miners, so as to make it become a set of distributed quotation system with logical closed loop, which perfectly generates the off chain price on the chain and forms the nest price prediction machine. < / P > < p > compared with other Oracle projects, nest’s characteristics and advantages lie in the reverse breakthrough of the two-way quotation and verifier verification scheme, making nest more resistant to attack, more decentralized, and the chain price closer to the fair market price. At present, the ETH / usdt price data generated by nest oracle on the chain is updated every 60 seconds, and the price deviation is within 0.3%. In the aspect of anti attack, nest price prediction machine has high anti attack ability. < / P > < p > on July 13, nest 3.0 was officially launched on the main network of Ethereum, and nest oracle was officially opened to the public. At the same time, ntoken system was added to support the price Oracle of erc20 token / eth; the quotation deviation defense mechanism was added to improve the anti attack ability; the voting system was added to support nest governance; and the ETH was added Income pool and storage pool fund flash loan function. Soon after the launch of nest 3.0, its partners were welcomed. On July 16, the force agreement announced that it would cooperate with nest and use the nest Oracle to obtain the price on the chain. At present, the force protocol and three defi protocols in nest community use nest oracle. In terms of security, < / P > < p > in terms of security, amby laboratories also released the nest 3.0 smart contract security audit report in early July, which shows that nest 3.0 does not contain fatal security vulnerabilities, and other related optimization suggestions have been all repaired. < / P > < p > previously, in early July, the Huo coin mine pool also announced the opening of nest locking and charging. Users can lock their positions in the Huo coin global station after filling nest, and enjoy the benefits in nest. < / P > < p > it can be predicted that with the official launch of nest 3.0, nest will, like chainlink, exert its power in the downstream defi ecology in the second half of 2020. < / P > < p > we will see more and more blockchain projects cooperating with traditional enterprise partners and nest. The good news will come with each cooperation landing. < / P > < p > finally, judging from the double price of fire coins launched in nest for three days, we believe that fire coins are speeding up the development of defi coins. Fire coins have good assets, and fire coins will introduce more good assets in the near future. Who will be the next hot money? Be the next nest? 865 optimization is different? These mobile phones should teach you a lesson!