Event time: November 13-14, 2021
Event organizers: Renmin University of China Blockchain Research Institute, Shanghai Keyiche Technology Co., Ltd., CSDN
The second day of the Shanghai Blockchain Developers Conference (2021) kicked off on Sunday, November 14, and continued to bring more in-depth discussions to the audience. Two concurrent sub-forums were hosted by senior engineers from many innovative companies Guidance, and demonstrated the research and development achievements in cutting-edge fields such as public chain open platform, decentralized identity system, smart contract high-level language and NFT on the spot.
If you missed the first day presentations, you can still check out the first day recap here (link to recap 1).
The Shanghai Blockchain Developer Conference (2021) is co-hosted by the Blockchain Research Institute of Renmin University of China, Shanghai Keyiche Technology Co., Ltd., and CSDN. The conference invited well-known scholars and technical experts in the field of blockchain at home and abroad to explore the industry The innovation trends and future opportunities of the latest blockchain technology will create an annual event for exclusive blockchain innovators and development engineers.
The conference was held at the W Hotel on the Bund in Shanghai from November 13th to 14th. The comprehensive and interactive sessions ran through the one and a half day conference schedule.
Sub-Forum 1 Public Chain Infrastructure and Development Tools
BSV blockchain infrastructure software and tools introduction
Zhou Quan | BSV infrastructure team software engineer
The second day of the Shanghai Blockchain Developer Conference (2021) kicked off with a welcome session presided over by software engineers from the BSV infrastructure team. Zhou Quan briefly introduced the agenda of the meeting to the participants of sub-forum 1. In order to allow participants to get more communication opportunities, the setting of sub-forums is very thoughtful: there will be a question-and-answer session after each guest sharing, and there will be a coffee break for further communication with the sharing guests at the end of the forum.
The first sub-forum was a keynote speech on "Public Chain Infrastructure and Development Tools". The first link on the day of the event was the sharing of "Introduction to BSV Blockchain Infrastructure Software and Tools" brought by Zhou Quan himself.
His sharing revolved around Merkle proof, and he shared with the audience from four parts: Merkle tree and Merkle proof, standardized format of Merkle proof, payment verification and block-headers-client. The fourth part is the new project recently released by nChain, "I call it the last piece of the missing puzzle. This project is very important and plays a very critical role in the entire closed loop of SPV." Zhou Quan added.
He went on to say that verifying instant payment will be a possible way in the future, reflecting the advantages of point-to-point, which can be quickly verified locally and reduce terminal costs. Then the sharing ended.
Layering and Evolution of Public Chain Infrastructure
Lin Zheming | Founder and CEO of Fujian Boquan Hash Technology Co., Ltd.
Next, Lin Zheming, founder and CEO of Fujian Boquan Hash Technology Co., Ltd., shared with you the layering and evolution of the public chain infrastructure.
At the beginning of the speech, he gave an overview of the background knowledge points: Bitcoin white paper, network topology, Mandala network and simple payment verification SPV.
He pointed out that the nodes are responsible for bookkeeping, "Each node incorporates the received transaction information into a block, and each node tries to find a workload with sufficient difficulty in its own block." Proof." He went on to add, "The nodes are tightly connected to form a small-world network." Each peer is connected to all peers on the previous layer. Then he went on to introduce the basic structure of the Bitcoin blockchain network - the Mandala network.
Finally, Lin Zheming introduced the importance of traceable privacy protection derived from the core value of the BSV blockchain through sharing. "Privacy protection requires multi-layer services to achieve it." He said.
Development of Tic Tac Toe Game Based on sCrypt Smart Contract
Hongfeng Zheng | Smart Contract Development Engineer of sCrypt Inc. (USA)
sCrypt Inc. (USA) Smart Contract Development Engineer Zheng Hongfeng is the next speaker on the stage. His sharing content has an in-depth discussion on sCrypt, the smart contract of the BSV blockchain.
He pointed out: "Learning sCrypt does not require any experience in smart contract development, and it is easy for developers to get started and apply. The sCrypt contract is also Turing complete and can implement smart contracts of any complexity." Through his introduction, we learned that building a development environment The preparation is actually very simple, and those who are interested can download and experience it. Then he led everyone to write Hello World and create launch.json debugging configuration.
Afterwards, he introduced scryptlib to the audience. "scryptlib is an official Javascript/TypeScript SDK for integrating BSV blockchain smart contracts written in sCrypt language." At the end of his speech, Zheng Hongfeng recommended an interactive learning website: learn.scrypt.io—— It can help developers learn and master the BSV blockchain smart contract development language sCrypt faster and easier.
Sub-Forum 2 Blockchain Application Development and Practical Examples
Dot card package—creating a new model of enterprise marketing
Ye Lin | Partner and Operation Director of Fujian Boquan Hash Technology Co., Ltd.
At the same time, in the second sub-forum with the theme of "Blockchain Application Development and Practical Examples", the first person to appear has more than ten years of experience in Internet product design and operation. He is currently working in Fujian Boquan Hash Ye Lin, partner and operating director of Technology Co., Ltd.
Taking DotWallet as an example, he analyzed the new model of creating enterprise marketing. First of all, he introduced the background of Fujian Boquan Hash Technology Co., Ltd., and then he introduced the application linking BSV and real scenarios - innovative card package service.
"This is an asset management function for ordinary users based on the Badge service, which helps users manage their various virtual and real assets on the blockchain." He pointed out that the new card package module allows BSV to start to be used in daily life. function in life.
After that, he shared with the audience the reasons for choosing the card pack and its usage scenarios. At the end of the speech, he introduced the bridge linking technology and cultural industries - Hengjing digital collection platform. He mentioned: "Issued on the BSV public chain, it has the characteristics of scarcity, indivisibility, and uniqueness of NFT, and also has the advantages of zero confirmation, low transaction fees, and decentralized verification."
NFTonShow: Embracing a comprehensive NFT-based future digital life
Zeng Mingrui | Operations Director of ShowPay Limited (Hong Kong, China)
After that, Zeng Mingrui, Operations Director of ShowPay Limited (Hong Kong, China), brought a sharing titled "NFTonShow: Embracing a Fully NFT-oriented Future Digital Life".
"ShowPay is a blockchain-based payment and data service provider, committed to promoting MetaID technology to 7 billion people around the world, and returning virtual property rights to every ordinary creator." Zeng Mingrui said. After that, she compared several NFT markets currently on the market through the dimensions of whether it supports the public chain, whether it is on-chain, actual utility, and casting costs, and pointed out that MetaID has massive application support and is a truly functional NFT.
After that, she introduced to the audience the first commercial project of NFT On Show - MetaBot. "As the publisher of the first generation of MetaBot and the promoter of MetaID, we hope that MetaBot can become the most prominent visual identity in the meta network." Finally, through the prospect of the future, it is pointed out that NFTOnShow will become a human-centered, corresponding to reality, Fairness and justice, win-win cooperation, and a world of real rights transactions on the chain that allow value to flow freely.
Induction Contract Development Tools and Development Resources Introduction
Chen Yaohuan | Development Engineer of Zhuhai Biyuan Network Technology Co., Ltd.
The last guest speaker on the second sub-forum was engineer Chen Yaohuan, a full-stack developer of the Xiaocong team of Biyuan Technology. He introduced a traceable and collaborative BSV blockchain smart contract based on feature recognition - induction contract.
He made an introduction from four aspects: "writing smart contracts, querying contract data, deploying smart contracts and building APPs". Among them, he specifically demonstrated the use of blockcheck. "blockcheck is a BSV blockchain browser, which can easily view the induction contract token information, publicize the source code and audit status of the smart contract, and allow DAPP users to check the security of the contract." Viewers who are interested in this content can learn more details through https://blockcheck.info.
If you want to learn more about the above content, please watch the full video of the second day of the Shanghai Blockchain Developers Conference (2021).
To watch the replay video of the event, please go to the BSV blockchain station B channel: https://space.bilibili.com/625906949/
At present, more than 400 projects around the world have been built on the BSV blockchain. With the rock-solid protocol and ultra-high network performance, the BSV ecosystem is developing rapidly, and we look forward to more unprecedented commercial applications in the future.
- Friends who are interested in the development of the BSV blockchain can contact us through private messages on the CSDN site and apply to join the BSV developer exchange group.
- At the same time, you can also scan the QR code below and follow the official WeChat account of the BSV blockchain to learn more about real-time information in the blockchain field.
