"Ethereum Technology and Application Meeting" ended completely, let's see what the big coffee guys said

 At the meeting, Mr. Jiang Tao, the founder & chairman of CSDN and founding companion of Geekbang, shipped a speech with the organizer. Mr. Jiang Tao presented the development craze of blockchain in 2019 and the rapid growth from the blockchain technology content from the CSDN local community. He concluded: "In the Internet age, perhaps the best place to stay is in information and business. E-commerce and information have undergone remarkable changes. Digital transformation has changed the form of information and business. The next step is The blockchain type has a huge impact in the field of financialization. I am hoping that a lot more of our designers can join this ecosystem and join this modify."

Jiang Tao, founder & chairman of CSDN, founding companion of Geekbang

Next, LinkTime CEO Jiang Yingying presented the development of the global Ethereum community. How do developers join the Ethereum local community. She started with "What's Ethereum? Where can you start? So how exactly does Ethereum work? So how exactly does it work? Using Ethereum? How exactly to create in Ethereum? The client of Ethereum? Introduction to Ethereum 2.0" and other aspects were described. At exactly the same time, the general scenario of Unitiems and PandaX wallet were told the audience.

Jiang Yingying, CEO of LinkTime

Next, the founder of Ethereum, Vitalik Buterin, brought a speech in the theme of "Ethereum 2.0 Cross-Shard Transaction" towards the warm applause. Vitalik started from "the existing string and sharded string, the look of Ethereum 2.0, asynchronous transactions, the issue of'train seat tickets and hotels', the'yank' approach, faster asynchronous transactions, A method much like Plasma to accomplish synchronous transactions and raise the confirmation swiftness of transactions does not need to increase the speed from the block."

Vitalik mentioned that you will see 1024 shard stores in the ETH 2.0 stage, the beacon string management consensus algorithm and cross-shard conversation, but communication is limited, and too much communication will put too much strain on the beacon chain. Consequently, the communication period is 6 minutes, and every 6 minutes, each shard can find the hash worth of some other shards; users and applications operate and run on different shards. Lastly, Vitalik made the following summary:

* Concept: Sharding is really a device for distributing information and calculations. There are many ways to achieve a scalable application environment on this bottom layer;

* Through these procedures, the swiftness and usefulness from the sharded blockchain can be maintained;

* Through these "second-layer" methods, the first level of Ethereum 2.0 may be used as a straightforward and secure underlying protocol for many different applications. The second layer continues to develop and improve rapidly, although many analysis problems still exist.

For the full content of Vitalik's reside speech, please make reference to:

Ethereum founder Vitalik Buterin

Next, Hsiao-Wei Wang, a core researcher of Ethereum, will give a talk on the main topics "Verifier of Ethereum 2.0 Beacon Chain". Hsiao-Wei started from "What's Ethereum 2.0? What's the beacon string? How do I staking and become a validator? Just how much is the prize? Might it be easy to become slashed? The related follow-up plan is What?" and other aspects started to speak.

Hsiao-Wei presented the development roadmap of Ethereum 2.0, which includes: Phase 0 (beacon string), Phase 1 (Sharded information chain (sharded information chain, that's, the sharded string is the information consensus, and Coating 2 may be the state of the application form). execution protocol)), stage 3 (Shard state execution, to accomplish cross-shard transactions), stage 3 and later iterative up-dates (Casper CBC, STARKS, etc.).

Next, Hsiao-Wei talked about the incentive system that sincere validators (Honest Validator) can buy, that's, the rewards that sincere validators can buy include: 1) Obstruct proposer prize (that's, the reward acquired as a obstruct proposer); 2 ) Casper FFG prize (that's, the prize for voting on the right beacon string); 3) Crosslink prize (that's, the prize for voting on the right shard string).

Later, Hsiao-Wei talked about "How to become a beacon string verifier?" She elaborated on it from two elements: First, "Join the staking (join the staking), that's, the user shops in the Deposit Contract). Wait for a period of time after depositing 32 ETH, and “trigger” to become an active validator.

Next, Hsiao-Wei talked about the obligations of the verifier during Phase 0 (proposing valid beacon chain obstructs, attestations towards the beacon chain obstructs), and penalities for that verifier because of improper behaviour (penalities) And slashings, the verifier's voluntary exit (Voluntary Exit, that's, the verifier applies to the machine to reclaim the pledged 32 ETH, therefore exiting the verification system), etc., and on the next plan (launching a stable check string, The client's check string, deployment of mortgage contracts, etc.) are usually introduced.

Ethereum core researcher Hsiao-Wei Wang

Next, Gary Rong, the core programmer of Go-Ethereum, will give a speech with all the theme "Deeply into ethereum lighting customer protocol". Gary mentioned that lighting nodes is only going to synchronize the blockchain and synchronize intelligent contracts in the server side, so the status of all nodes can be looked at through one network request and local efficiency can be improved. Lighting nodes can also subscribe to intelligent contract events, and secondly allow users to perform the search functionality of smart agreement events, improve node search effectiveness, and optimize storage space. Compared with centralized, the server can perform load controlling and flow control.

Gary Rong, Go-Ethereum Core Developer

Next, Brantly Millegan, Movie director of ENS Programmer Relations, will bring a speech with all the theme "Your DApp isn't completed without ENS (without ENS, your DApp isn't comprehensive)". Brantly Millegan mentioned that the hexadecimal Ethereum address is not pleasant to users. It can't be remembered or created, and can just become copied. ENS is really a smart contract in the blockchain, that may convert a blockchain address into an online domain name. This season, the integration of DNS (Domain Name System) will undoubtedly be launched, the amount of DNS LTD (top-level domains) will undoubtedly be risen to 1,200, and ENS records will be created for DNS domain names.

Brantly Millegan, Movie director of Developer Relations, ENS

Next, Kyber System CEO Loi Luu will give a speech with all the theme "Connecting Decentralized Liquidity".

From the perspective of "What's decentralized liquidity? Why do you need decentralized liquidity?", Loi stated that "the existing decentralized liquidity is very scattered", and talked about Kyber being an "on-chain liquidity protocol". "Connect the liquidity of all chains", and presented the current information situation in the Kyber network, which includes total stock (total stock) exceeding 7 million U.S. dollars, 31 reserves (Reserves), 66 wallets & Dapp integration As well as the Kyber protocol, a total of 74 forms of tokens are supported in the Kyber network, and it is mentioned the Kyber System liquidity protocol is usually integrated into the wallet Zion Vault of its blockchain cellular phone EXODUS 1.

Next, Loi talked about "cross-chain link liquidity", that's, through "two-way relay between intelligent contract-based blockchain systems" to accomplish "assets free inside a trustless way between blockchains" Transfer". Loi discussed the Waterloo & PeaceRelay cross-chain interoperability remedy, and stated WBTC as a practical cross-chain remedy and its helping community.

Lastly, Loi concluded: 1) Decentralized liquidity is vital for Dapps; 2) Kyber is usually working to link all on-chain liquidity resources; 3) There's more work to be achieved in the cross-chain field.

Loi Luu, CEO of Kyber Network

Next, Cong Tang, founder of Ethereum Confidential Transaction, gave a talk. The Ethereum Confidential Transaction project is really a confidential transaction system for digital foreign currency and encrypted foreign currency. It is vital to become auditable and accountable. The accountability confidential transaction scheme suggested by ECT can provide a plug-and-play confidential transaction system for popular cryptocurrencies such as ETH.

Personal privacy on Ethereum is vital, including the privacy of digital currencies, and much more importantly, corporate users. Both digital foreign currency and Ethereum are usually expanding enterprise apps, and it is also very important for enterprises to obtain privacy defense. What corresponding privacy features does Ethereum have to help users offer? Tang Cong feels that the foremost is to hide the balance from the Ethereum account and the amount of each transaction; the second reason is Accountability. Once the account balance is usually hidden, whether it's by means of accreditation or encryption, just the two celebrations can transfer the money. See, third celebrations cannot see.

In Cong Tang's watch, PGC provides users using a centerless cryptocurrency bank. Three elements are essential to realize it. The foremost is digital signature, the second reason is homomorphic public crucial encryption, and the 3rd is evidence. PGC may be the first confidential deal program that supports auditable, and proposes a general framework for confidential transactions. Digital trademark + homomorphic encryption + non-interaction completes the security and privacy defense.

Then, Cong Tang's co-workers took the phase and demonstrated in detail the system of PGC to carry out confidential transactions for ETH through intelligent contracts deployed on Ethereum.

Cong Tang, founder of Ethereum Confidential Transaction and colleagues

Next, Guillaume Felley, Specialized Movie director of Liquidity System, will give a talk on "How Commit-Chain Achieves Higher Balance and Safety, NOCUST Initial".

Guillaume Felley presented the forms of Layer2 solutions. Presently Layer2 provides two forms of protocols. The first type may be the 2-Party Channels route. It is divided into three levels: channel opening, off-chain deal after channel is usually opened, real-time deal, on-chain transaction finishing. The second class is Commit-Chain, which is equal to an operator, and Guillaume Felley furthermore introduced the technical details. Guillaume Felley presented the security and top features of NOCUST through two situations, in addition to whether you will see problems in the machine and how to prevent them. For example, the operator all of a sudden disappears no longer makes any response. It can be mortgaged through the insurance pool, and the user can redeem the amount of money in the insurance policy pool during transactions.

Lastly, Guillaume Felley discussed along with you why unsupervised transactions are exciting. First, we found that monitoring the marketplace is not efficient, and sometimes users will exchange game titles. In the digital age stock trading, like the New York STOCK MARKET, although it provides fast transactions and large volumes, users have to supervise and supervise. But through our cryptocurrency transactions, it allows users to have control over themselves, and users gain plenty of control. Needless to say, one of its drawbacks would be that the speed is relatively slow, which does not meet our goals. This is furthermore the decentralization of liquidity. Very little reasons.

Guillaume Felley, Specialized Movie director, Liquidity Network

The above may be the wonderful content brought by the audio speakers during the early morning of the meeting. Let's have a look at what type of technical feast you'll generate the afternoon!

After a short lunch break, in the afternoon from the "Ethereum Technology and App Conference", AlphaWallet CEO Zhang Zhongnan shipped a speech with all the theme "TokenScript: Building the Front End of Token and DApp". Mr. Zhang Zhongnan mentioned that Ethereum itself can be seen anytime and anywhere, but the current dApp cannot do that. And TokenScript can be used to build leading end of token and dApp, so that dApp can be safely seen anytime and anywhere.

AlphaWallet CEO Zhang Zhongnan

Next, YottaChian founder Wang Donglin brought a speech with all the theme of "Starting a New Period of Blockchain Hard and Hard Internet Giants". Mr. Donglin Wang mentioned that YottaChain can provide the best centralized storage in the world with regards to security, reliability, and cost. YottaChain wants to be a continual storage marketplace and create large-scale commercial apps.

YottaChian founder Wang Donglin

Next, Skillet Chao, mind of MakerDAO The far east, gave a talk on "Multi-collateral DAI-the final puzzle of decentralized financing".

He first presented this is of the largest stability proportion of Ethereum, DAI, and its own fundamental place in Decentralized Financing (DeFi). Next, he explained how to ensure that DAI always provides excess assets for mortgage, and the difference between solitary mortgage DAI and several mortgage DAI. Skillet Chao mentioned that MakerDAO is still in the phase of single mortgage DAI. At the moment, all resources belong to Ethereum, that may withstand an abrupt drop of more than 80%. He furthermore mentioned the initial batch of applicant multi-collateral lists simply announced by MakerDAO last night. Lastly, he concluded: "The biggest issue with decentralized financing isn't the technologies itself, but the asset part."

Pan Chao, Mind of MakerDAO China

Next, PeckShield founder & CEO and former 360 main scientist Jiang Xuxian shipped a talk on this issue "From online games to DeFi, the security challenges faced with the DApp ecosystem".

Mr. Jiang Xuxian reviewed the security issues that have occurred during the development of the three main public chains in the past year: By May 31, 2019, there were 109 DApp assaults on EOS, using a lack of 930,000 EOS; TRON is finished. At the end of the 30 days, there were 11 security incidents, with 29 million TRX losses, or almost 10 million yuan. There were 5 security incidents on Ethereum, leading to a lack of 24,000 Ethereum plus a lack of about 50 million yuan.

PeckShield founder & CEO, former 360 main scientist Jiang Xuxian

Next, ARPA co-founder/CEO Xu Maotong shipped a talk on this issue "How exactly to make use of blockchain + protected computing to realize the secure stream of disintermediated information?".

Mr. Xu Maotong mentioned in his talk that protected multi-party computing is really a pure cryptographic privacy computing remedy. The realization of search and complex computing logic based on encryption is an idea suggested by Academician Yao Qizhi, Turing Honor winner, in 1982. The application form scenarios of protected multi-party computing include: 1) Recognizing model security evaluation in business and individual evaluation; 2) Joint danger control between monetary credit score investigations and accurate data matching in the marketing market; 3) Safe guardianship and safe realization of individual data.

ARPA Co-founder/CEO Xu Maotong

Soon after, MixMarvel Cloud Doulong founder/CEO Jade Zhang shipped a speech in the theme "From Coating 2 technologies to publishing providers, promoting the popularization of Ethereum blockchain online games in all respects".

MixMarvel may be the first company to use the Coating 2 expansion treatment for in-game products, and the blockchain lighthouse-type game product "Cloud Battling Dragon" is very well-known. Jade Zhang mentioned that 2019 is really a calendar year of popularization, and hopes that mass-scale apps will appear before everyone predicated on technology, providers and distribution systems. Its company item, Yundoulong, is currently ranked on the list of top five Ethereum game DApps. It is a beacon-type item and is currently conquering bottlenecks and issues in developing online games based on the blockchain.

Jade Zhang, Creator/CEO of MixMarvel Cloud Doulong

Next, Amberdata co-founder/COO Tongtong Gong shipped a speech with all the theme "Unblocking Blockchain Data-See crypto-economic in Action".

In his talk, Tongtong Gong mentioned: Data may be the blood of each function and every actions in the worthiness chain, but the challenge we have been currently facing is usually that it's very difficult to obtain data. A proven way is to run Ethereum's very own node in support of get unprocessed information; the other way is to use an API service provider. As a specialist corporation for blockchain information and encrypted foreign currency information, Amberdata's API and system can provide you with information in the Ethereum platform string, including historical information, real-time information, value-added information and top 13 transactions in the market All data.

Co-founder of Amberdata/COO Tongtong Gong

From then on, Anne Jiang, the top from the Ethereum Community Foundation in China, offered a talk on this issue "THE STREET to ETH2.0 Development". Anne Jiang stated that ECF (Ethereum Neighborhood Fund) provides funded almost 40 projects so far. ECF has obtained thousands of apps for tasks. She mentioned, “For applicants, we have been no longer providing simple yes or no answers. We will support every phase of project development as much as possible. We will discover talents, tasks and organize meetings for them in the ecology. There are also various projects locally to maintain shut contact with us and provide resources."

Anne Jiang, Mind of The far east, Ethereum Neighborhood Foundation

Later on, Xu Jianzhi, main project supervisor of Microsoft Azure Blockchain, shipped a talk on the main topics "Ethereum in Organization Application Cases and Development".

According to Mr. Xu Jianzhi, Microsoft Azure Blockchain offers Azure Blockchain Support in development, and deals Ethereum right into a managed service so that users can use it quickly. He likened this services to "sell popcorn in movie theaters": We such as movie stars very much. We used to be movie stars ourselves. When the browser is flourishing, we perform IE, so when the mobile system is fantastic, we perform Windowsphone. These days, we support Ethereum and market popcorn in film theaters-this is usually our placing. So we support different blockchains and also have different providers, and we link the middle level and the application form layer.

Xu Jianzhi, Key Project Manager of Microsoft Azure Blockchain

Next, as the last guest loudspeaker on the "Ethereum Technology and App Conference", Zane Zhang from Lingtai Technology, among the organizers, shipped a speech in the theme "PandaX-Ethereum-based mobile application service system" . Zane Zhang mainly presented PandaX, the mobile application service system of Ethereum that Lingtai Technology is building. He introduced the services supplied by PandaX from four components: customized providers linked to ERC20 and ERC721 contracts, DApp access and APP phone calls.

LingTi Technology Zane Zhang

Next, the meeting entered the ultimate round table discussion board session. Ethereum founder Vitalik Buterin, EthFans editor-in-chief A Jian, AlphaWallet CEO Zhang Zhongnan, and Microsoft AzureBlockchain main project supervisor Xu Jianzhi jointly discussed the road to "Ethereum 2.0".

In reaction to the biggest challenge of Ethereum 2.0, Ajian feels that technically, the largest problem in the development of Ethereum 2.0 is usually cross-shard transactions. In transactions, information availability and information credibility have to be more in-depth Study and more advanced mechanism style, these aspects will be the main technical issues. Zhang Zhongnan feels that if 2.0 is usually delivered on schedule, the biggest challenge will be how to migrate the existing smart contracts or apps deployed on 1.0, or whether users have the motivation to migrate to the 2 2.0 string.

So, what areas of the Ethereum field still have to be enhanced? In this regard, Vitalik Buterin mentioned that the Ethereum local community has had a lot of new challenges in the past year. Many people are very happy and feels that people are all buddies, but many people are not happy and is thinking about it because you may still find many brand new blockchain projects appearing. Many people think that the new project is a competitor. This can be a complicated issue. In addition, many new companies don't have new business models. The majority of their funds come from foundations, which is also an important issue.

The enterprise-level application of Ethereum 2.0 will undoubtedly encounter resistance when it comes to getting. Xu Jianzhi feels that the largest resistance originates from three aspects. The first is that the drawback technology is as well difficult; another is the business solution requirements and business Integration, but there is absolutely no good integration point yet; third, corporations still face serious security issues when they introduce blockchain.

Finally, the sponsor asked everyone that which was the most meaningful number for every, Vitalik Buterin replied: "1.92 million, obstruct hard fork height!" This amount is of outstanding significance. Around the night time of July 20, 2016, Ethereum A difficult fork occurred on the 1.92 millionth obstruct height.

"Towards Ethereum 2.0" Roundtable Forum

Conclusion According to the "2019 Chinese Programmers Survey Record", nearly half of the designers in China derive from the Ethereum system, ranking first. New applications continue to emerge. Although dealing with some doubts such as slow up-dates and low deal performance, Ethereum is undoubtedly still one of the best blockchain development systems in the world.

Through this meeting, developers have also seen the task done with the creators of Ethereum for this platform, and contains also brought more powerful information to domestic developers. I believe that when we see you next calendar year, you will see more developers who have developed excellent Ethereum-related products to gather here.

Ethereum designers who love technologies, let us fulfill this year on the 2020 Ethereum Technology and Application Meeting. See you next year!