郭雄辉 · 13

Metaverse Weekly 丨 The first international standard for blockchain digital collections was established; Gucci buys land in The Sandbox; Binance and NetStone cooperate to develop a private chain

Outline the popularity of NFTs and the metaverse is inseparable from the impact of many celebrities entering the market. Stars such as Yu Wenle, Lin Junjie, Lu Han, Stephen Curry, and Xu Jinglei have entered the market to issue NFTs or buy real estate within the metaverse. This week, Binance announced a partnership with South Korean mobile game giant NetStone to develop a private chain on the BSC GameFi sidechain. At the same time, a strategic partnership was reached with YG Entertainment, which includes many K-pop stars such as BigBang. According to reports, YG owns many world-famous Kpop stars such as BIGBANG, BLACKPINK, WINNER, iKON, AKMU, and TREASURE. Disney released information on the recruitment of a business development manager with extensive experience in NFTs. Following the launch of the Mickey Mouse NFT series in collaboration with the NFT platform Veve, Disney may be bringing more impressive works to the NFT field. In addition, the “Blockchain Based Digital Collection Service Technical Framework” international standard project was successfully established. The project was led by Tencent and jointly proposed by industry-university-research institutions such as Ant Group, the Institute of Information and Communications Technology, Beijing University of Posts and Telecommunications, and Zhijiang Laboratory, and approved at International Telecommunication Union (ITU) related meetings. This is the first international standard project for the application of blockchain technology in the field of digital collections. In order to promote global agreement and consensus on the overall technical framework of digital collection services, enhance the value storage, value discovery and value transfer capabilities of digital collections, and promote the standardized application of digital collections. Meanwhile, in the virtual real estate sector, Gucci announced the purchase of land in The Sandbox and plans to release virtual wearables. Gaming giant Ubisoft is continuing to explore new areas of Web3, announcing a partnership with The Sandbox to bring its famous gaming concessions to the world of Ethereum-based metaspace gaming. Meanwhile, US metaverse technology company TerraZero Technologies recently completed the world's first metaverse housing mortgage on Decentraland, allowing customers to purchase virtual real estate on the Ethereum metaverse platform Decentraland. The metaverse era is dawning, so let's wait and see. The following are the details of this weekly magazine. Our Metaverse mind divides it into two major sections: Important News and This Week's News List. Please ask Enioy: METAVERSE Important News [Developers Discover Apple's Metaverse-related Operating System or “RealityOS”] It was previously widely rumored that Apple will release a VR (virtual reality) or AR (augmented reality) headset to enter the metaverse market as soon as the end of this year or next year. Recently, developers have discovered that Apple has introduced the name “RealityOS” in the GitHub source code library. In addition, “RealityOS” is also mentioned in the App Store upload entries. Based on previous experience, Apple has named its iPhones, PC Macs, smartwatches, and Apple Watch with operating systems such as iOS, macOS, watchOS, etc., so it is speculated that the name “RealityOS” may be an operating system related to the metaverse. Also, well-known developer Steve Troughton-Smith posted on social platforms that according to the latest programming code, it can at least prove that “RealityOS” already has its own system and binary files (binaries), and even has prepared a corresponding emulator. [Korean game giant Netmarble launches metaverse game] On February 4, South Korean game giant Netmarble said that its subsidiary Netmarble F&C is developing a sequel to the board game “Everyone's Marble” called “Everyone's Marble: Metaworld.” According to information, Netmarble's metaverse game will have elements that game enthusiasts expect from virtual world games, including NFTs, digital avatars, and the ability to buy and sell virtual land. Additionally, the international version is expected to be set up in a “play-to-earn” mode, which will allow users to earn virtual currency in fiat currencies. The pay-to-play game is currently banned in South Korea, so its domestic version will only include NFTs. [Disney is hiring a business development manager with extensive experience in NFTs] On February 5, according to...

1652d ago元宇宙之心MetaverseHub#MetaverseHub #sandbox #metaverse #Binance #Digital collections #Private chain

Guo Xionghui, CTO of Luyin, will be the new CEO

According to Luyin's official blog post, Guo Xionghui (former CTO) has been appointed as the CEO of Loopring (Loopring). Guo Xionghui will take over this role from Wang Dong (founder of Loopring), enabling him to focus more energy on developing the next generation of Tier 2 strategies. Wang Dong will continue to serve as Luyin's consultant. Guo Xionghui was admitted to the China University of Science and Technology when he was only 15 years old. He graduated in 2005 with a doctorate in computer science and began his career at Intel as a software engineer and technology leader. Over the next few years, Guo Xionghui has been committed to the development and customization of Android ROMs. In 2015, Guo Xionghui's first startup, PowerMo Information Technology, was acquired by the listed company Cheetah Mobile. He then joined Cheetah Mobile and became the senior director of engineering. In July 2019, Guo Xionghui officially joined Luyin as CTO.

1661d agoChen.Zou#Loopring #Wang Dong #Road marks #Guo Xionghui

99% reduction in transfer costs? Learn about the features of ZK Rollup-based Road Printing smart wallets

By integrating the ZK Rollup Layer-2 expansion protocol, the Luyin Smart Wallet achieves the same security as the Ethereum main network while greatly reducing transfer costs. The LoPrint Protocol, which was launched in August 2017, deployed multiple versions of the 1.0, 1.5, and 2.0 protocols on the Ethereum mainnet in 2018 to provide an efficient and easy to use DEX. Therefore, the order-based off-chain matching and on-chain settlement transaction model has always been the core of the Luprint Protocol. The road printing protocol was upgraded all the way from version 1.0, which introduced loop matching, to version 3.6, which is based on zero-knowledge proof ZK Rollup technology, and version 4.0 will be launched in the future. Nearly a month after the launch of the wallet and exchange based on the LoPrint Protocol 3.6, it has accumulated nearly 23 million US dollars in transactions and nearly 53 million US dollars in transfers, contributing a considerable amount of capital to the Ethereum Layer 2 ecosystem. Image source: https://explore.duneanalytics.com/ 2020.1.5 The Luprint wallet uses the ZK Rollup two-layer expansion protocol integrated with Road Print to achieve the same level of security guarantee as the Ethereum main network while reducing usage costs to 1% of the Ethereum network, thus providing a better transfer and payment experience. Ethereum 2.0, a layer 2 scaling solution, was officially launched on December 1. However, considering that it is very difficult to implement in shards, the Ethereum Foundation has adjusted plans in the short term to first use the Rollup plan to build a new generation of Ethereum, which is also in line with Vitalik's statement in October of this year that “Ethereum should be centered on Rollup”. First, let's take a look at the Layer 2 expansion solutions currently on the market, mainly taking the following six expansion plans as examples: Currently, there are no perfect Layer 2 expansion plans on the market; different Layer 2 expansion plans only make different trade-offs in terms of security, performance, and availability. Among them, Rollup can also be divided into ZK Rollup and Optimistic Rollup. ZK Rollup is the most prominent in terms of security, followed by Optimistic Rollup. Currently, the Rollup expansion scheme is receiving a lot of attention, and Vitalik also strongly recommends the Rollup solution. Among them, ZK Rollup is faster and more efficient than Optimistic Rollup, and the road printing protocol uses the ZK Rollup scheme. “ZK Rollup” scaling scheme The “ZK Rollup” scaling scheme stores all transaction data in Ethereum in a “packed/compressed” form and performs all calculations in batches off-chain. At the same time, ZK Rollup uses a “zero-knowledge proof” to prove the validity of the transactions it processes, that is, it submits a small zero-knowledge proof (which cannot be a fake one) to Ethereum for verification. Since Ethereum verifies these proofs and stores enough data to accurately determine the status of off-chain accounts, ZK Rollup has Ethereum-level security. As early as June of this year, Alex Gluchowski, founder of Matter Labs, wrote an article analyzing the advantages of the zkrPlLup solution and argues that “zkRoulLP is ideal for expanding decentralized crypto payments.” The Road Printing Protocol, which was previously frequently praised by Vitalik, launched the 3.0 version of the Road Printing Protocol based on the ZK Rollup scheme. As we all know, the congestion problem on the Ethereum network had a significant impact on transaction speed and cost. In its early tests, the Ethereum main network TPS could only reach 2-3 matching transactions per second, which clearly did not meet the needs of users. Therefore, the Luyin team wants to build an efficient, low-cost, order-based decentralized transaction system. Following the introduction of the ZK Rollup solution, the Luprinting protocol was iteratively upgraded. Although Luprint Protocol is not the first project to experiment on Ethereum using ZK Rollup, it is the first officially launched decentralized trading protocol based on ZK Rollup. The protocol has an open set of smart contracts for execution of transactions and matchmaking operations, and...

2054d agoLoopring#AMM #DeFi #DEX #layer 2 #Loopring #ZK Rollup #Ethereum #security #Extend capacity #smart wallet #Road marks #wallets #Zero-knowledge proof

[Press Release] Luyin Monthly Report (September 2020)

September was a busy month. We completed the development of the Road Print Protocol 3.6 code and officially launched a security audit. We have also begun preparations to upgrade the relay to support 3.6. Additionally, we are continuing to polish the wallet's features and UI, and plan to invite more users for closed beta over the next two weeks. After four months of intensive development and testing, we have completed the development of the Road Print Agreement 3.6 and submitted it to the audit company for a safety audit. Compared to Protocol 3.1, version 3.6 represents a huge leap forward in the usability, flexibility, and efficiency of the Luprinting Protocol. Luyin is Ethereum's first high-performance decentralized transaction protocol based on zkRollup. We still have a lot to learn, and we believe Protocol 3.6 will be very attractive to users. You can read the article to learn more about the features of the Luyin Protocol 3.6. A few weeks ago, we announced support for AMM (automated market maker) on Layer2. We are designing an AMM contract that allows anyone to become a liquidity provider on the Luprint Exchange. Although the AMM transaction itself is built on a protocol, setting AMM parameters and adding/removing fund pool liquidity are handled by smart contracts, so different types of AMM can be created using standard smart contracts. We plan to deploy 3.6 on the Goerli testnet in November and release a beta version on the Ethereum mainnet in December. 3.6.0 is the pre-release version we submitted for audit. The auditor we chose was Least Authority because they have extensive experience and expertise in auditing zero-knowledge proof projects (such as Zcash), and have audited many blockchain projects, including Tezos, Ethereum 2.0 specification, MetaMask, and Cosmos. We have also launched an agreement 3.6.0 bug bounty program (ending November 30), and we will give LRC rewards to contributors who discover bugs. For more information on the Road Printing Agreement 3.6, you can watch the related introductory video. Luprint Exchange users: The number of registered users of the Luprint Exchange exceeded 5,900, with a maximum of 277 registrations in a single day. TVL (Total Locked Value): The value of assets on the Luyin Exchange is currently around $22.5 million, reaching a maximum of $25 million this month. Trading volume: Trading volume rebounded in September, with the highest daily transaction volume exceeding 1.61 million US dollars. Luyin Exchange launched 11 trading pairs this month: TON/ETH, BAND/USDT, WBTC/USDC, ETH/WBTC, QCAD/USDT, UNI/USDT, ADX/USDT, NIOX/ETH, KAI/USDT, PLTC/USDT. Luyin Payments added 12 tokens: UMA, STAKE, OGN, HEX, ENTRP, WNXM, NIOX, ADX, QCAD, UNI, KAI, PLTC. In addition to MetaMask, WalletConnect, and MEW wallets, the Luprint Exchange now also supports QR code login using AuEthereum wallets and Coinbase wallets. By logging in to Loopring.io, you can experience fast transactions and transfers at the second layer of Ethereum, with negligible gas fees. This month, we added support for Auther and Coinbase wallets. We are grateful to community member Federico Luzzi for creating Loopring Swap: https://swap.loopring.io/，用户可以使用简单的兑换UI界面体验路印的基于订单本的去中心化交易所. Loopring Swap open source code is: https://github.com/loopring/loopring-swap. Loopring.io continues to host liquidity mining activities. Currently, it supports 4 trading pairs: ADX/USDT, QCAD/USDT, OGN/USDT, and NIOX/ETH. Among them, qCAD is a stablecoin pegged to the Canadian dollar launched by Canada Stablecorp. Everyone is welcome to actively place orders, and the 14,000 US dollar reward is waiting for you! We will distribute liquidity mining rewards to the winners' Luyin accounts around the 1st of every month. Liquidity mining interface In addition to HummingBot and VNPY, we provide an easier to use market making tool: Autoni...

2143d agoLoopring#Monthly Report #Luyin Exchange #Road stamp payment #Luyin smart wallet #Zero-knowledge proof

Road Print Monthly Report (July 2020)

This month, we are mainly focusing on contract upgrades and audits of Luprint Smart Wallet 1.1, as well as the development and testing of Luprint Protocol 3.6. Currently, related research and development is progressing smoothly. Our work in August focused on protocol 3.6 security audits and interactive transformation of wallet apps. We have completed the development and testing of the core code of the Road Print Agreement 3.6. Currently, there are still some details that need to be improved and optimized. I believe we can prepare a security audit for a third party in about 1 to 2 weeks. At the same time, we have also begun a more formal internal audit process: CEO Wang Dong, CTO Guo Xionghui, and Chief Scientist Ma Chaohui lead five other engineers to form an eight-person audit team to conduct a detailed audit of each module code of the agreement. We expect the internal audit will take 4 to 6 weeks to complete. We have also contacted a number of external auditors to seek audit plans and quotations, and we will decide on one to cooperate in August. Luyin Exchange has launched a referral rewards page. When the reward amount exceeds 5 US dollars, referral rewards are distributed regularly at the end of every month. If the monthly bonus amount does not reach 5 US dollars, it will be accumulated to the next month. https://loopring.io/account/referral-rewards在初期LRC/USDT和ETH/USDT两个交易对上实验的流动性挖矿功能反响不错，也有效的促进了订单深度，所以我们会把其作为交易所的特色功能持续运营. After the first trial, we opened more trading pairs. Currently, everyone can perform liquidity mining on the four trading pairs LRC/USDT, USDT/DAI, renBTC/USDT, and bzRx/ETH. At the same time, we also released two open source liquidity mining robots: hummingbot and vnpy, which can be used right out of the box. Everyone is welcome to try out mining early. Liquidity mining interface Luyin Wallet After Solidified audited our first version of the wallet contract code last month, we thought the contract design could be greatly improved, so we immediately re-developed version 1.1. In the new version, we have mainly restructured the meta-transaction processing module and greatly simplified the design of the business logic module. Just today, Solidified also completed an audit of version 1.1. No security flaws were found in the new version. We've shared the audit report on GitHub. Our back-office and app engineers are also connecting to the new version of the contract. Once the connection is complete, it will be updated by upgrading the contract and app at the same time. The wallet app added features such as LRC staking, liquidity mining, transaction flow display, WalletConnect, and small asset hiding. At the same time, we are focusing on sorting out some key UX interactions: such as creating a wallet, asset homepage, unifying the interaction between Ethereum transfers and second-tier account transfers, and the Guardian's approval process, etc. We hired a new designer this month. We believe this will speed up the development and iteration of the wallet app. We hope to bring everyone an impressive user experience when launched on a large scale. At the beginning of the month, we invited the first batch of community seed users to try out the first version of our wallet app. We have collected some useful suggestions and feedback on some bugs, and we will absorb some good ideas into the new version. Road Printing Relay We have launched an advanced ordering function that can support taker-only and maker-only orders. This function is particularly important for market makers. Currently, it can be used through the market making API; next month, it will be connected to the front end and provided to ordinary users. At the same time, we launched a parallel version of Merkle Tree. After the update, the performance was improved by almost 10 times, and it can be accelerated by increasing the number of CPU cores. Clustering will be carried out later to achieve horizontal expansion. Message Center coding is complete and is expected to be launched next month. The circuit service based on Google Cloud Services has been developed and can be launched after some adjustments. It is expected to improve circuit generation and certification performance while reducing costs. The operator Luyin Technology reached a cooperation with VBC, a Vietnamese blockchain community, to jointly establish the Luyin Vietnam community. We will provide technical and financial support to the Vietnamese blockchain community and educate and popularize DeFi products for local users. We believe Vietnam will be the next important market for the development of cryptocurrency applications and blockchain technology. The Luprint Pay UI rewards program has ended. Congratulations to the community's Federico and Nicole for receiving the rewards. Here's their product design: Federico: Mainnet, https://...

2209d agoLoopring#Luyin Exchange #Road stamp payment #Luyin smart wallet #Road Printing Technology

Road Print Monthly Report (June 2020)

We have made good progress in the development of the Luprint Protocol 3.6 and the Luprint wallet. Although product iterations will never catch up with the community's expectations, from a software engineering perspective, we are still satisfied with this progress. If you want to know more about Luyin in June, keep reading. Development of the Road Print Agreement We have decided to release a version 3.6 of the Road Print Agreement before investing in the R&D of the Road Print Protocol 4.0. This version is an upgrade to 3.5. The goal is to launch an agreement that can be used for two to three years as soon as possible based on the same market positioning. Some friends in the community are curious about Luyin 4.0. However, starting from the current design positioning of the Luyin Agreement, 3.6 will be our most competitive core DeFi product in the next three or two years. 4.0 is another different “species” in our plans. In the future, we may give 4.0 a unique name to differentiate it from the positioning of the Luyin Agreement. In addition to supporting more users, 3.6 also provides more improvements that we think are very necessary, including: Greatly improving the user experience — users can receive token and ether transfers on the second tier without registering an account. Requests of different types can be packaged into the same block for batch processing. This will make the block rate of 3.6 small blocks extremely low, the cost of each request will be greatly reduced, and the waiting time for user operations (such as registration, withdrawal) will also be greatly shortened. This is one of the most important improvements in 3.6. More flexible deposits, withdrawals and transfers. 3.6 will allow two-way transfers of ether and tokens between different accounts, across tiers. This flexibility is unprecedented. Reduce the logical complexity of relay generation blocks. Reduce the cost of relaying some operations. More ERC20 tokens (4096) are supported. We'll open source all of our code and design documentation in July. At present, the 3.6 circuit and contract code are basically ready, and further optimization details, unit testing, and internal security and code audits are needed. We hope the code will be ready for a third party security audit by the end of July. Luyin Exchange has launched a fast transfer function based on Loopring Pay (Loopring Pay), and already supports more than 20 well-known tokens. Transfers between Luyin's second-tier accounts can be transferred in seconds and the cost is almost zero, so users can say goodbye to the trouble of Ethereum congestion. Furthermore, the quick transfer function already supports ENS. This month's internal salary payments have all been completed through the Luyin Wallet App and Luyin Payments. The low cost and second-to-second user experience are very good. At the same time, we have also launched the liquidity mining function for LRC/USDT and ETH/USDT trading pairs. Every user can participate in this campaign and instantly see rankings and rewards on Loopring.io. We will continue to improve the design and long-term operation of liquidity mining. We also welcome project parties to support the liquidity mining of their tokens on the Luyin Exchange to encourage users to provide transaction depth. We've also open-sourced the Luprint Exchange web front-end code library. You can now access these codes via the link below: https://github.com/Loopring/dexwebapp. We are happy to see that the Ren project team has integrated renBridge based on our open source web front-end codebase. Through RenBridge, users holding BTC can mint renBTC (ERC20 tokens) 1:1 on Ethereum. Currently, Luprint Exchange supports MetaMask and wallets with WalletConnect functionality, and we also very much welcome other wallet project teams to add support for more wallets to our open source code. We've also set up a 25,000 LRC bounty program to motivate the community to build a responsive front-end that supports Roadprint payments for third-party wallets to easily integrate Roadprint payments: https://gitcoin.co/issue/Loopring/dexwebapp/158/4431. Through cooperation with Solidified, Luyin Wallet completed the audit of the 1.0 version of the smart wallet contract code and issued an audit report. Based on the results of the audit, we've improved some of the contract's code logic and fixed several issues Solidified discovered. At the same time, we are also continuously optimizing the meta-transaction processing method. Drawing on the practices of the Gas Station Network, we have restructured the design of the meta-transaction module, and will release version 1.1 of the smart wallet contract in two weeks. I...

2243d agoLoopring#Luyin Exchange #Road stamp payment #Luyin smart wallet #Road Printing Technology

Road Print Monthly Report (May 2020)

The Luprint Exchange has matched more than 1 million transactions; we will launch a Layer-2 fast transfer feature based on the Loopring Protocol next week, which we call Loopring Pay (Loopring Pay); in addition, we will soon invite the community to test the Loopring Wallet App. Development of the Road Printing Agreement At the beginning of this month, we released the 3.5 version of the Road Printing Agreement. You can read some details about 3.5 on the related blog. At the end of the month, we also improved the agreement to allow user accounts to be distributed more evenly in the Merkel tree. This optimization will make relay fragmentation more efficient and will be of great help in further improving relay throughput. At the same time, we've also added a feature to allow a third party to help users create a trading account in 3.5, so if you transfer money to the other party through Luyin Pay, you can first help the other party create a payee account and then make a Luyin payment transfer when they don't have a Luyin account. Luyin 3.5 is the midpoint on our way to a larger goal. This larger goal is Road Print 4.0. Regarding the positioning and characteristics of 4.0, we will be disclosing them one after another in the second half of this year. The preliminary design has now been completed, and we are conducting internal discussions and feedback on the design documentation. Our engineers are also prototyping the 4.0 contract. We obtained the Solidified security audit report and made many improvements and optimizations to the Luyin Smart Wallet contract based on the feedback in the report. Based on this, we have officially released version 1.0 of the smart wallet contract code. Luprint Exchange We have improved the way Luprint Exchange manages user transaction keys. Now you use the LuPrint Exchange and don't have any passwords. Your Ethereum signature is your password. After this improvement, Luyin Exchange's trading experience is superior to many centralized exchanges. Loopring.io added 5 trading pairs this month, namely KEEP/ USDT, USDC/USDT, DXD/ETH, AUC/ETH, and RPL/ETH. We will also gradually adjust the rules and pace of coin listing in the future. https://loopring.io另外路印的交易数据也正式被全球最大数字货币数据平台CoinMarketCap收录. https://coinmarketcap.com/exchanges/loopring-exchange路印钱包安全审计后，我们最新版的钱包App已经适配了最新的智能合约代码. All features have already been tested on the Goerli network. We are currently making every effort to advance the deployment on the Ethereum mainnet, which is one step away from the main network launch. Once the main network is online, we will do our best to test the wallet's various features with real money internally, and invite community users to participate in the app testing as soon as possible. Luprint Relay LoPrint Relay has completed support for the Layer 2 fast payment (transfer) function. This feature is natively supported by the LoPrint Protocol, but we haven't prioritized it before. However, at present, the Ethereum network is getting more and more congested, and we plan to launch this feature as soon as possible to allow Luprint users to quickly transfer money between users at almost zero cost. We will first add this transfer function to the Luprint Exchange, and later we will also integrate this function into the app. As a result, starting next week, Luyin will not only be a high-performance transaction agreement, but will also become an efficient payment agreement. Currently, Ethereum is in great need of this feature, because stablecoin (especially USDT) transfers consume the most Ethereum resources and keep transfer fees high. https://twitter.com/VitalikButerin/status/1260172228282527744?s=20我们相信路印交易和路印支付将是路印钱包的杀手锏级应用. Unlike other wallets, our users aren't limited by Ethereum's congestion and high fees. The Road Print Relay is also testing the off-chain withdrawal function. Once online, users can withdraw money from the exchange without initiating an Ethereum transaction. Not only do relays not have to wait for 12 confirmations, but the processing fee for users is also much lower. There was a great improvement in both cost and time. Our engineers also optimized the server configuration, further reducing costs by approximately 30%. We are also optimizing the relay code, hoping to migrate some services to more cost-effective cloud computing platforms. Operational Statistics Since the launch of the Luyin Exchange, it has completed more than 1 million transactions. https://dune...

2272d agoLoopring#Loopring #LRC #Exchanges #blockchain #Decentralized trading #Road printing agreement

[Press Release] Road Printing Agreement Project Progress Report (Issue 56)

We built WeDex's first high-performance decentralized exchange based on the Luprinting Protocol 3.0 on Ethereum, and began providing beta testing based on real assets for WeDex in conjunction with the Optical Cone Relay. R&D Agreement Development We registered the first DEX contract for WeDex based on Road Printing Protocol 3.0:0x7D3D221A8D8ABD8E88811FF033E68E108 Through this contract, you can check the transfer records of WeDex user registrations, deposits, and withdrawals, as well as discover CommitBlock and VeirfyBlock transactions unique to the Road Printing Agreement. As far as we know, 0x7d3d221a8d8abd8abd868e8e88811ffaf033e68e108 should be the first high-throughput decentralized exchange since the launch of Ethereum. In the future, we will help WeDex complete the full DEX lifecycle testing, including actively stopping the DEX service into “shutdown mode” and entering “withdrawal mode” in deliberate violation of agreement rules, etc., to ensure that in simulated situations where WeDex does not participate in any way, the Luprint agreement can ensure that every user can take back their assets. Product development We have completed the contract development work for the Luyin smart wallet “joint package”. Starting next week, we'll begin unit testing the contract. Our goal is to complete unit testing by the end of February next year. We have planned and divided the labor for the development of “co-contracted” mobile apps, and will begin mobile app development in January next year. At the same time, the web version of the “co-packaged” exchange has also been designed and is under iterative development. Optical cone relay We helped WeDex complete the main network protocol and light cone relay access work, and began the first internal round this weekend. Currently, the product still has many problems, but the core trading function is performing very well. While WeDex continues to improve the user experience, Luyin will also continue to follow up on relay optimization. The optical cone relay also completed several rounds of relatively detailed continuous pressure tests. Each time, 30 TPS lasted about 10 hours, fixing the functional and performance issues discovered during the pressure testing process. Currently, it has entered a relatively stable state, and has the ability to launch on a small scale. At the same time, we have also improved our monitoring and alarm capabilities, adjusted alarm rules, and pursued a balance between accuracy and recall rate in order to detect and resolve online issues in a more timely manner. We have also formulated specific research and development plans for optical cone relays for the first half of 2020. We hope to complete most of the optical cone research and development work in the first half of 2020. On December 3 of the market operation, Luprint and Guarda Wallet jointly launched a Bounty reward campaign to promote LoPrint Protocol 3.0, DEX scaling technology, and zkRollup. On December 4, Luprint launched the “Ultimate Unmanaged Test”. We explained how to keep users' assets safe in the worst case scenario. On December 5, we released the Luprint Protocol 3.0-beta4 to the Ethereum mainnet and disclosed the relevant configuration. On December 8, Luyin CMO Zhou Jie participated in the Daofest event in Shanghai and shared Luyin's understanding and plans for decentralized governance. On December 9, Road Printing opened the LRC pledge gold window period. Until February 2020, LRC holders can first stake LRC with the Luyin Foundation to earn more points and receive more LRC staking rewards in the future. On December 12, Luyin CMO Zhou Jie attended the 2019 Shanghai Fintech Summit. On December 14, Luyin CTO Guo Xionghui attended the Shanghai Blockchain Conference to share the latest ZKRollup progress. On December 14, Luyin CMO Zhou Jie attended the Shanghai Entrepreneurial Leadership Summit and discussed future trends in blockchain technology with other participants. On December 17, Luprint released the 2020 R&D roadmap, detailing our 2020 R&D plan. On December 19, the Luyin team organized a team building event in Shanghai. We talked freely about Luyin's future plans for 2020 and were full of confidence. On December 21, WeDex became the first decentralized exchange on Luyin Protocol 3.0 and began an invitation-based public beta. For more updates on the Road Printing Agreement, please visit our community account: Twitter: Twitter:wiki/loopringorgReddit: reddit.jr/loopringorgTelegram: t.me/loopringfans (Chinese) Weibo:...

2434d agoLoopring#Loopring #LRC #blockchain #Decentralized trading #Road printing agreement

[Press Release] Road Printing Agreement Project Progress Report (Issue 55)

We also made very good progress in the past two weeks: Protocol 3.0 will be able to complete the deployment and configuration of the Ethereum mainnet next week. At that time, the Luprint protocol will become the first high-performance decentralized transaction protocol in the Ethereum ecosystem based on zkRollup and supports on-chain data availability. Stay tuned! We have received a safety audit report for Protocol 3.0 from Ambi Laboratories and have improved the protocol. Enough people have participated in the multi-party calculation of Road Printing's security settings, and engineers have begun generating certification keys and verification keys. The light cone is basically ready, is undergoing the final round of stress testing and minor bug fixes, and will soon begin servicing WeDex. The Luyin core team will be closed for a few days in early December to discuss the overall plan and specific division of labor for 2020. As a result, the publication date of the next biweekly report was postponed by one week until December 22. Good progress has been made in developing multi-party computation of road printing security settings for road printing protocols. Currently, a total of 15 people have completed the calculation, 12 of whom are from other blockchain teams (such as Gnosis and Aztec). We have also set up a reward on Gitcoin, and the winner of the reward will also become a participant in the multi-party calculation. We are generating the first version of the certification key and verification key based on the results of the 14th round of multi-party computation. We expect the deployment and configuration of 3.0beta4 on the Ethereum mainnet to be completed next week. Some of the Road Printing Protocol 3.0 modules are configurable. To increase security, we have added a delay configuration function. As an authorized administrator, you must disclose the new configuration to the community, and then wait a while before the new configuration takes effect. Smart wallet We have decided to develop a smart wallet app for small and white users in mainland China in 2020. We will explain the positioning and functionality of this wallet app in the 2020 R&D roadmap. Let's take a moment to sell. The R&D roadmap for 2020 will be released at the end of the month. We have begun the design of this smart wallet solidity contract, and have implemented many basic modules, including limit transfers, approved transfers, key recovery, wallet locking, guardian management, meta transactions, etc. We expect to complete an internal evaluation of the overall design of the wallet contract by the end of December, implement all core functions, and begin app product development. The front-end product DEX's web-based product has been developed by WeDex. According to our understanding, WeDex has now basically completed front-end development and is refining the details, and plans to launch the first version for testing in December. You can follow up on the latest news from WeDex through WeDex's WeChat account and Twitter. Starting in 2020, we will mainly report the development progress of smart wallet apps and web products to the community here. The reconstruction of the optical cone relay has been completed, and the test coverage rate is now over 90%. The system performs normally when the multi-pod concurrent throughput is not less than 50 transactions per second. Previously, some logic and performance issues were encountered during the concurrent stress testing process, including inconsistent state after the matching engine failed to recover; concurrency issues caused by parallel consumption of Kafka messages; mismatched JVM parameter configurations and Docker resource parameter configurations. Most of the issues have been fixed, and others are still being investigated and are expected to stabilize next week. In addition, major data storage services, including MySQL and Redis, have switched to using AWS native services to ensure higher stability. The marketing module data synchronization mechanism is basically established, with a delay of less than 0.5 seconds, which can basically meet the requirements of marketing in real time. Operations and Markets On November 19, Zhou Jie, CMO of the Luyin Agreement, was invited to participate in the DAO Step Two event held in Shanghai to discuss the prospects and trends of DAO. On November 20, Amby Laboratories completed a security audit of the 3.0 beta3 version of the Luprint Protocol. We believe the issues reported by Amby have all been discussed and addressed. Ambi's audit concluded that on November 22, LRC officially launched VCC, a government-supported trading platform under Bittrex. The VCC trading platform has already opened LRC/BTC trading pairs. On November 23, LRC landed on PionEx, the world's first exchange created for quantitative trading, and PionEx opened LRC/BTC and LRC/ETH trading pairs. On November 24, considering the flat distribution of votes, the Luyin Agreement put forward a proposal in DXdao to reduce our voting rights by 20%. On November 26, Guo Xionghui, CTO of the Luyin Agreement, was invited to participate in the Tongji University event...

2454d agoLoopring#Loopring #LRC #blockchain #Decentralized trading #Road printing agreement

[Press Release] Road Printing Agreement Project Progress Report (Issue 53)

Developing the Road Printing Agreement We spent a lot of time preparing the Multiparty Computation Ceremony (Multiparty Computation Ceremony) required for the Road Printing Protocol 3.0 Trusted Setup (Trusted Setup). Last week, Luyin participated in the Perpetual Powers of Tau (Tau) calculation (Perpetual Powers of Tau) calculation (Perpetual Powers of Tau) to ensure that the results of this multi-party calculation can be used more reliably in Luyin's own multi-party calculation ceremony. We have completed and are testing the second stage code required for the Luyin multi-party calculation ceremony — the first stage refers to the perpetual Tau () calculation itself, and the second stage refers to the multi-party calculation associated with the LOUPRINT protocol circuit. We have also developed a corresponding web page to show the progress of the multi-party calculation ceremony. The website will be launched before the ceremony begins. A number of prominent figures in the blockchain ecosystem have now confirmed their participation in Luyin's multi-party computing ceremony; we will continue to invite more people to participate. On the other hand, protocol R&D engineers are making a special optimization to the circuit code base to increase the degree of parallelization of relay matching. This part of the code is almost complete, and it should be possible to finish all testing and merge into the main branch within a week. At the same time, the team has also completed the optimization and adjustment of all parameters of Protocol 3.0, which has ensured more stable interaction between the relay and the protocol in the early stages of launch. The audit of protocol 3.0 was further delayed. Since the agreement audit was not a bottleneck for us to go online, the delay of one to two weeks did not have much impact on the launch. We are also grateful to AmbiLabs for being willing to spend more time perfecting the audit at the same cost. After two weeks of hard work, the optical cone relay has completed all the docking work with the beta3 version of the protocol, including subsequent integration testing and deployment. Based on this, we have carried out extensive performance tests and optimizations. The current throughput of the system should be able to crush the level of some small centralized exchanges and disrupt the user experience of previous decentralized exchanges. At the same time, we continue to fix the problems we have encountered and further improved the stability of the system. Based on this system, we tested the relay system based on the Rinkeby test chain and the Georli test chain separately — the latter was specifically used to test the impact of the Istanbul upgrade on the Road Printing protocol. The relay has also added a quick account opening function, which allows new users to complete account opening in seconds (it took a few minutes before) and can recharge immediately, greatly optimizing the account opening experience. Furthermore, we have further completed the division and merger of each module, adjusted the tight coupling, removed the single-point bottleneck of the previous system, and fundamentally solved the performance bottleneck of the optical cone relay. We are in the process of further refactoring and developing the new version, and so far it is progressing very well. The front-end of the front-end product has completed the final docking with the back-end beta3 version. The new authentication mechanism will guarantee the privacy of user data and system security. At the same time, we have also applied for a server in China and completed the deployment of the new version, which should solve the problem of domestic users' access speed. The UI is also continuously being optimized. Beta launch plan road printing agreement: We expect the multi-party calculation ceremony of the agreement to take about 40 days to complete — each participant will take 2 to 4 days, and the first phase will involve about 8 to 10 people. Therefore, protocol beta4 is expected to be released and deployed to the Ethereum mainnet in mid-December. Protocol beta4 has 2 working optical cone relays to be completed: We expect the light cone to complete all reconstruction and more stress tests by the end of December, especially tests related to parallel task processing. Front-end: The front-end code is mainly developed by WeDex. It is expected that all coding and testing of the improved version should be completed by the end of December. This year's Spring Festival holiday is in late January 2020. If the product is launched in December, it may not be possible to complete timely processing of some issues during the Spring Festival, which will cause some inconvenience to early users. Also, the community may not be active during the Spring Festival, so we and WeDex have yet to finalize whether to launch DeX products in December this year, but the entire core architecture should be ready. Operations and Marketing On October 20, Guo Xionghui, CTO of the Luyin Agreement, was invited to attend the Shanghai Blockchain offline gathering hosted by the Magic Piper Developer Community to share Luprint Protocol 3.0's high-performance DEX solution based on zero-knowledge proof. On October 21, we participated in the perpetual Tau (tau) calculation twice. Luyin's own multi-party calculation ceremony is also about to begin, so stay tuned. On October 21, Louis Print Agreement commercial director Matthew Finestone was at Cryptoverse...

2481d agoLoopring#Loopring #LRC #blockchain #Decentralized trading #Road printing agreement