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| Author, Editor: Corrie
| Design: Zhu Yiqin, Song Chuanqi
The 6th China Open Source Annual Conference (COSCon'21) will be held by Kaiyuanshe on October 30-31.
This year's annual conference will take the form of a combination of online and offline, Beijing, Shanghai, Shenzhen, Chengdu, Zhuhai, Dalian, Wuxi, Fuzhou eight cities linkage, 1 main forum, 15 sub-venues, both online and offline.
01
Blockchain (B) Forum Introduction
Blockchain originates from the spirit of open source, not only from the technical level, but also from the governance level of the community to lay a solid and reliable "trust" foundation in the digital world. Therefore, for Internet applications, even starting from open source, more potentials and greater value will be unearthed for traditional industries in the process of digitization. Nowadays, the application of blockchain technology has been extended to many fields such as financial technology, government affairs management, intellectual property rights, intelligent manufacturing, supply chain management, carbon neutrality, Internet of Things, art collection, social public services and so on.
02
Forum Producers and Production Standards
Guo Haoyun
Member of Open Source Society, Coordinator of ETHPlanet
Blockchain (B) Forum Production Standards
1. In line with the open source community culture.
3. It can actively help and promote the open source community and open source governance.
4. Refusal to promote products.
5. Do not involve any topics related to virtual currency.
03
Forum Lecturer
magistrate
Personal profile:
Bachelor's degree and master's degree in computer science from Peking University, product manager, serial entrepreneur, founder of Leitu Technology. As a project leader and evangelist, he has rich speech experience. He has participated in speeches at conferences and activities organized by 706 Youth Space, Cyber Beijing Forum, CoinTelegraph China, and Yuanyu Lilong. share projects and experiences at such events.
Leitu Technology is a technology company dedicated to allowing more users to enter the blockchain world. The founding team is a serial entrepreneur who graduated from the Department of Computer Science of Peking University. He has ten years of experience in joint ventures. He has worked in mobile game payment, mobile advertising platforms, There is a lot of accumulation in the direction of lightning network, state channel and so on. The main products are UniPass, a low-threshold encrypted identity platform, and pw-sdk, a multi-chain SDK based on Nervos CKB.
Speech topic: "Using Internet Infrastructure to Build Low-Threshold Encrypted Accounts"
abstract:
The current blockchain application has a very high barrier to use, often requiring users to download an app or install a browser plug-in, go through a lengthy process to create a public-private key pair, and keep the private key or mnemonic by themselves. Once these ciphertexts are lost or leaked, users will suffer huge losses. In order to solve this fundamental problem, Lay2 Tech utilizes Internet infrastructure such as SubtleCrypto, WebAuthn, and DKIM, and cooperates with the account abstraction architecture to implement a low-threshold, decentralized encrypted account system - UniPass. Through UniPass, users can create and manage their own keys by sending emails, and can also realize decentralized account recovery through multi-factor authentication including email. Most importantly, UniPass is completely web-based, without the need for apps or plug-ins, achieving both security and convenience.
Target audience:
Blockchain practitioners, or people who are interested in the blockchain industry and have a certain Internet product or technical background.
I hope to bring you a new way of thinking, that is, to explore the development direction of the deep integration of blockchain and existing Internet scenarios.
Liu Zhen
Personal profile:
Dr. Liu Zhen, Senior Research Scientist of the Blockchain Research Center of Oxford University College, the leader of the Committable project, Ph.D. and postdoctoral researcher of Tsinghua University, visiting scholar of UC Davis Programming Language Laboratory. His research interests include blockchain, software engineering, regulatory technology, system security, etc. He has participated in and presided over the major projects of the National Natural Science Foundation of China, the Youth Fund, the National Postdoctoral Fund, and the "Tsinghua-Huawei" Joint Fund and other projects. Served as a reviewer and program committee member for IEEE TSE, TII, ASE and other journal conferences. Published more than 30 high-level academic papers in the computer field, and won the first prize of the 2021 Ethereum Community Hackathon, the ICDCS 2020 Best Prototype System Paper Award, and the IV and V Ethereum Devcon Conference Scholar Fund.
Speech topic: "Committable: A New Generation of Decentralized Open Source Software Protocol"
abstract:
Committable is a new generation of decentralized open source software protocol based on blockchain. It is committed to building a sustainable open source software collaborative development ecosystem for global developers and solving the pain points of current small and medium open source software projects that lack developer participation and contribution. In this speech, Liu Zhen will introduce the overall principle and core protocol design of the Committable project, focusing on the trusted software analysis technology based on the Transparency Center and its application in the software collaborative development process, and further introduce Committable Incentive system for open source software based on blockchain. In addition, Liu Zhen will introduce the use process and application scenarios of the Committable platform based on actual open source project cases, and share future project promotion plans and related important nodes.
Target audience:
Open source software developers and project parties. Through this speech, it is hoped that the target audience can understand the overall concept, core principles and core functions of the Committable project, understand the costs and benefits of using the Committable project for open source projects, and explore the ways and arrangements for related open source projects and developers to participate in Committable , to further establish the community connection between the target audience and Committable.
Zhang Weiwu
Personal profile:
Wei Wu has been working on blockchain for the past ten years...it started when it was still called Bitcoin. His business interests started with making bitcoin derivatives, later became a blockchain architect for Australia's CBA Bank, and is now one of the founders of AlphaWallet, the most widely used open source mobile wallet. In addition to blockchain, he has also worked in LINUX, Drupal and other fields for several years. He was also a rancher and horse trainer.
Speech topic: "How to get rid of FANG's control of the Internet through TOKEN"
abstract:
FANG's control of the Internet is not simply out of evil, but because they provide the necessary services for websites to interact and integrate in business. Here we introduce the prospect of blockchain TOKEN used on the Internet, and introduce a technology Token Negotiation to realize it
Target audience:
- If you often hear about blockchain TOKEN, but feel that it has nothing to do with you, or think it is a plaything for speculators, here is the usage scenario of TOKEN in actual business
. Traditional business has nothing to do. This speech may change your perspective.
- Website designers and WEB 2.0 developers will get inspiration from it and become the innovative force of the future WEB.
Bob Jiang
Personal profile:
Bob Jiang, Gitcoin Steward | Rebase Network cofounder.
Speech topic: "Anti-Sybil Attack Sharing in Gitcoin"
abstract:
The purpose of Gitcoin is to fund digital public goods, but it has encountered many challenges and attacks in the process. This sharing will include, 1. What is digital public goods; 2. How to fund digital public goods; 3. What Sybil attacks are in the process of funding and how to prevent them. This sharing will introduce the specific difficult scenarios encountered by the Gitcoin team and the solutions.
Target audience:
For those who are interested in open source software and public product funding schemes, from this sharing you will learn about the common problems and solutions encountered in the current public product funding process. Perhaps our solution is not the best, but it is worth learning and thinking about.
Yang Bo'an
Personal profile:
A Rust engineer at Second State, currently developing the SewUp open source project. In the past, he has given speeches on Rust open source projects such as S3rs and GitUI. He usually likes to follow various Rust open source projects.
Speech topic: "Writing Ewasm Contracts with Rust"
abstract:
For a long time, Ethereum smart contracts have been written in solidity. Although there is a Rust ewasm api, its development experience is still very different from that of general Rust. The SewUp open source project will enable developers to write smart contracts in a Rust-like way, and also add a new language to the Ethereum ecosystem. Currently, SewUp can be used to write ERC20, ERC721, ERC1155 and other contracts. From the perspective of Rust programming, this speech will tell you how Sewup can write smart contracts with the SDK that is more in line with the Rust language specification, and give you a demo of how to use SewUp to write the most popular ERC721 NFT contract.
Target audience:
Listeners who are interested in blockchain and Rust will understand how to design and write a Rust-compliant blockchain contract, and have a basic understanding of Ethereum Webassembly.
Zeng Yi
Personal profile:
Has more than 13 years of rich experience in IT industry. He has successively worked for Microsoft, CICC, and well-known technology companies in Silicon Valley, and participated in blockchain entrepreneurship after returning to China; now he works for Tencent CSIG, focusing on the research and development of Changan chain. #Participated in the design, development and led the team to complete a large number of projects related to enterprise management, financial data processing, business intelligence, mobile Internet, supply chain finance, etc. He has specialized in blockchain technology for many years, and is proficient in the underlying principles of Bitcoin, Ethereum, and Hyperledger Fabric. He has led the team from 0 to 1 to complete the research and development of independent and controllable blockchain underlying public chains and alliance chains, and led And participated in the application of multiple blockchain technology patents.
Speech topic: "Chang'an Chain: A New Generation of Enterprise-level Blockchain Assembly Factory"
Content summary :
1. Blockchain development and trends
Blockchain technology originated from Bitcoin. Through the innovative integration of distributed systems, P2P transmission networks, digital signatures, hash algorithms, consensus algorithms and other technologies, a decentralized, highly anonymous, secure An encrypted digital currency network. The digital cryptocurrency represented by Bitcoin has brought the blockchain into the 1.0 era. Ethereum has brought a new feature to the blockchain—smart contracts, and it also marks the entry of the blockchain into the 2.0 era of programmable finance. As people pay more and more attention to blockchain technology, and find that its data is tamper-proof, traceable, suitable for multi-party collaboration, data privacy encryption and other technical characteristics, and continue to develop on the basis of it, blockchain has entered the programmable society. 3.0 era.
2. The birth and characteristics of Changan chain
Chang'an Chain coincides with its meeting. As the first independent and controllable blockchain software and hardware technology system in China, the name of Chang'an Chain comes from the beautiful vision of "long-term peace and stability, creating greater glories, and linking the world". The goal of Chang'an Chain's ecology is exactly Construct the national main chain of the digital economy based on "Chang'an Chain·ChainMaker", and build the Chang'an Chain ecological network based on the application of major scenarios, gather data elements, enhance business collaboration, and prosper the new ecology of the digital economy. "Chang'an Chain" has created a deep modular, assembling, and high-performance parallel execution block chain underlying technology architecture, independently developed and realized more than ten core modules such as a high-security smart contract engine, a governable pipeline consensus, and hybrid sharding storage. Transaction processing performance has reached the world's leading level.
3. Detailed Explanation of Changan Chain Technical Architecture
Chang'an Chain is a set of infrastructure for building high-performance blockchain systems. Based on the abstract blockchain execution process, each component is abstracted, interfaced, and protocolized, and highly scalable protocols and models are established. Blockchain is deeply modular. Chang'an chain not only requires complete independence of blockchain module functions, clear interface definition, and pluggable replacement, but also requires complete virtualization of communication between modules, which can support functions from function calls, inter-process communication (IPC) to various network communication protocols, Different implementation modes such as microservices make it possible to assemble and combine convenient and free modules.
4. The application direction of Changan chain
Changan Chain is not only a blockchain system, but also a set of standards, components and tools used to generate blockchain systems. The "Chang'an Chain" software platform can automatically select and assemble appropriate components according to different business scenarios to meet different needs such as asset transactions, data sharing, and trusted certificate storage. It has been practiced in government affairs, traceability, finance, judicial and other scenarios.
Target audience:
Blockchain practitioners, government and enterprise IT practitioners, middle and high-level technical backbones who are interested in blockchain technology. Through this speech, we can understand the development history and trend of the blockchain, the technical characteristics and application direction of the Changan chain, and facilitate the recognition of the value of the blockchain and which chains are more suitable for which scenarios in the selection of blockchains for enterprise business systems .
Robert Yan
Personal profile:
Responsible for NEAR developer tools and ecological construction. Enthusiast, advocate and practitioner of open source code, open data and open network. Former MicroStrategy Engineering Director, focusing on developer efficiency, quality and innovation.
Speech topic: "Comparison of Rust-based smart contract development frameworks"
abstract:
The Rust language has been ranked first in the "Most Favorite Programming Language" by Stack Overflow developers for 4 consecutive years. Rust's safe, reliable, and efficient features have also been favored by the blockchain technology community. Developers have conducted in-depth practice of the Rust language in the development of blockchain underlying systems and decentralized applications (dApps).
This speech will combine code examples to introduce the similarities and differences between Rust and Solidity smart contract development, and compare NEAR, ink!, CosmWasm, Solana and other Rust smart contract development frameworks and operating environments that have received widespread attention.
Target audience:
Developers who are interested in application development based on blockchain and smart contracts#Value: Help developers understand the development and practice of smart contract development environments, languages and frameworks, especially the latest practices of smart contracts based on WebAssembly and Rust languages.
Yao Xiang
Personal profile:
Get the initiator in the original language. Practitioner of blockchain for many years, expert in the field of digital identity and smart wallet. He was responsible for blockchain technology research, solution design and external cooperation in China UnionPay. Participated in the writing of the "China Blockchain Development Report (2018)" compiled by the Academy of Social Sciences, published dozens of related articles in journals such as "Journal of Information Security", "Financial Expo·Fortune", and authorized 5 related patents.
He has shared themes in activities such as "2021 Global Internet Architecture Conference" and "Yangtze River Blockchain Advanced Seminar".
Speech topic: "Collaborative Research on Frontier Technology"
abstract:
Cutting-edge technologies such as blockchain, cryptography, and privacy computing are considered important network infrastructure, and their technological development and concept dissemination also reflect new features. In the early stages of technology development, community-based collaborative research is necessary. #谭翔 will talk about how to promote in-depth research on cutting-edge technologies, enhance industry awareness, and create a good technical atmosphere by organizing seminars, research projects, and literature translations.
Target audience: Technical researchers, programmers, project managers and other positions involving cutting-edge technologies, as well as enterprise managers who pay attention to technological innovation
Chen Sida (Three Fires)
Personal profile:
Blockchain enthusiasts, Dapp development learners, open source community contributors
Speech topic: "Learning DApp Development Using Dapp-Learning"
abstract:
Dapp-Learning project introduction and practical demonstration. This is a set of completely open source and free Dapp development tutorials, which are divided into two parts: basic tasks, to help you quickly familiarize yourself with relevant technology stacks and knowledge points; advanced tasks, to study classic projects in Defi, NFT, DAO and other fields in groups Principle and source code, and regularly output results.
This sharing will use a simple learning case to demonstrate the eating method of the tutorial. We are a mutual-aid learning organization that upholds the concept of an open source university. Welcome everyone to star/fork/PR the github warehouse.
https://github.com/rebase-network/Dapp-Learning
Target audience:
Students who want to learn blockchain application DApp development, and advanced DApp developers and researchers who want to participate in exchanges and research.
Guan Yuhui
Personal profile:
Obsidian Labs was established in Silicon Valley, USA in 2017, and is committed to providing technical services for the world's top blockchains. #The core members of the team are from MIT, Hong Kong University of Science and Technology, University of Toronto, Peking University, etc., and have been selected into the Silicon Valley incubator Y Combinator, Qiji Chuangtan (formerly YC China), Tencent's first blockchain accelerator, etc.
The IDE series products developed by Obsidian have become official developer tools for blockchains such as Ethereum, Fabric, EOS, Polkadot, Academician Yao Qizhi’s Tree Map Research Institute Conflux, and Wanxiang Group’s PlatON. Development tools designated by platforms such as Chain Service Network BSN, Tencent, and Baidu.
Official website: www.obsidians.io
Product link: github.com/ObsidianLabs
WeChat public account: Obsidian Lab
Twitter: obsidian_labs
Speech topic: "Reconstructing the Smart Contract Development Experience on the Blockchain"
abstract:
The invention of the integrated development environment (IDE) restructured the software development journey and made it more efficient to promote the rapid development of functions to implementation. However, the existing Ethereum development process is still an insurmountable obstacle for many beginners. To this end, the Obsidian Labs team re-developed the Ethereum Studio IDE product exclusively for Ethereum. It has built-in tools required for the entire process of Ethereum smart contract development to meet developers' needs for rapid development of smart contracts. Ethereum Studio, in conjunction with the teaching guide produced by Obsidian, provides a new set of colleagues for Ethereum developers to get started, and supports advanced developers to develop smart contracts faster and better.
We will give you an in-depth introduction to Ethereum Studio, a set of full-featured Ethereum IDE products that can run on the desktop and web. This cross-platform IDE product has a built-in vscode-based graphical code editor, solidity compiler, key manager, network manager that supports management of local and remote nodes, block browser and contract debugger, and allows development Users can quickly start the Ethereum development experience from the local desktop environment or web environment. Ethereum Studio also provides the underlying RPC Client and raw transaction data query functions to meet the needs of advanced developers. Ethereum Studio is an open source IDE platform, and the Obsidian team is honored to gather a global developer community through our IDE products.
Target audience:
Developers who are interested in the development of blockchain smart contracts. Current blockchain practitioners, blockchain enthusiasts, etc. I hope they can learn about our related products in the blockchain industry.
Polosukhin Illia
Personal profile:
Illia Polosukhin is Co-Founder of NEAR Protocol, a decentralized developer platform powered by a sharded smart contract blockchain. NEAR’s vision of a scalable, robust, and highly usable blockchain began in 2018 when they couldn't find a protocol that met the needs of builders. NEAR Protocol launched its mainnet in 2020 and is focused on supporting the creator economy. Illia has more than 10 years of industry experience, including 3 years at Google where he was a major TensorFlow contributor and manager of the team building question-answering capabilities for the core Google search, as well as an author of several notable research papers.
Speech topic: "Building Open Web"
abstract:
Open Web is evolution of Open Source, not just code but the whole applications and products are becoming collaborative, hackable, composable and community driven.
This talk will outline next 10 years of Open Web development with protocols and projects that we must build to achieve it.
Target Audience: Developers, Entrepreneurs, Blockchain enthusiasts
Matt Nelson
the speech topic:
《Deploying your first Dapp with Hyperledger Besu》
abstract:
This workshop, we will walk you through every step of the process, helping you get setup and learn how to deploy your first Dapp with Hyperledger Besu, deploy a smart contract, and send private transaction. We will go into more detail than the documentation, where appropriate, to give you a deeper understanding of ConsenSys Quorum.
Target audience:
An overview of ConsenSys Quorum and why you should use it when building your application on besu.
A demo of deploying Dapp and smart contract on Hyperledger Besu.
Hyperledger Besu and GoQuorum set-up demonstrations.
We are waiting for you at the Blockchain (B) Forum!
" Scan the code to enter the group
/
Happy open source ”
China Open Source Annual Conference
COSCon'21
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