On December 4th, PolkaBase’s second sharing session [Technology Driven] was successfully held again at ITC (the building International Talents Centre in Hangzhou, China). This sharing session focused on open-source technology and was aimed at developers, the new generation of Bitcoin->Grin community, and the Rust CC community (the leader of biggest Rustlang community in China) and the Free World Wide Web SoLiD Chinese community introduced the most cutting-edge Rust language, cross-chain technology, MimbleWimble protocol, Free Web and other contents.

Grin: The Upgraded Protocol of Bitcoin

Xiaojay: independent developer of Grin wallet, Nifflerblock browser in Chinese language, and the payment plug-in, GrinPay, one of the founders of Grin Community in China.

Bitcoin has some deficiencies

a. The scalability of Bitcoin is limited, for now users gotta download 250 GB of accounts data.

b. Privacy is weak as a transaction currency. Through transaction histories the identity of one transaction can be detected, so that the anonymity and privacy are threated.

c. Bitcoin will face a halving right away. If this is halved, the way that the bitcoin economy can be maintained when the block reward cannot cover the computing power.

In fact, approaches for improving the shortcoming do exists, which is not only able to reduce the huge historical ledger data that needs to be downloaded to 50GB, significantly reduce storage space and bandwidth usage, but also provide stronger privacy. This powerful The technology is MimbleWimble.

Initially, the developer, alias Tom Elvis Jedusor, released an overview of the earliest version of the MimbleWimble protocol. It adopts Bitcoin’s main structure, adds confidential transactions and transaction cut-through mechanisms, and adds a privacy transaction function to Bitcoin. Although this proposal was eventually not adopted by the Bitcoin community, it was developed for the subsequent Grin project.

What is Mimblewimble?

Mimblewimble proposed a new blockchain transaction structure. Through the Elliptic Curve Encryption Technology (ECC), it successfully hides who the two parties are in the transaction, but can verify the ownership. At the same time, it also hides the transaction amount, but can determine the sent and received coins are of equal value.

The concept of an elliptic curve is simple: it is easy to multiply the product of two Numbers, but difficult to disassemble a number into a single factor of two.

Pedersen Commitment is a method used to ensure that the transaction value is correct while hiding the amount. Use the elliptic curve, plus a large number to disturb the transaction value, to ensure that only the sender and receiver in the transaction know the amount of exchange. In a MimbleWimble transaction, there will be two Pedersen Commitments in total, one To record the number of currencies entering the transaction; the other is used to record the number of currencies output by the transaction.

MimbleWimble’s blockchain browser has no address, no transaction amount, and no single transaction details.

For scalability, the Cut-through method is used to compress the data stored on the chain and ensure that the total input is equal to the total output. In simple terms, it does not record the intermediate output during the transfer process, but only records the intermediate changes and the final output. When more transactions are generated, in fact, more stored data can be reduced, making the entire block more compact and expandable, because the data transmitted throughout the block becomes very small:

For a Bitcoin-sized blockchain, an order of magnitude of several Gbytes may be optimized to several hundred megabytes.

When a new node joins, the amount of information to be synchronized is also very small.

Grin is an implementation of the MimbleWimble protocol, which aims to be a scalable privacy blockchain that uses the open source language Rust and adopts a fully open community collaboration model. There is no public placement private placement, no founder rewards, no pre-digging, Gitter online development / governance meeting every Tuesday night, open to everyone.

This is an open source project. Everyone can participate in it without permission:

github.com/mimblewimble/

Rust CC community： Evolution of the road across the chain

Sun: co founder of cypherlink (cypherlink. IO), developer of the rust CC community and author of TDN.

What is cross-chain technology?

In independent blockchain systems, the way they transfer and interact information is called cross-chain, such as the information transfers between Ethereum and BTC system. In a broader sense, it can be transferred from the blockchain system to other systems, such as ethereum, BTC to WeChat system and taobao system.Cross-chain exists not only in block chain, but also in centralized system.And in the information age, individuals using different systems can be seen as a cross-chain center.

Early cross-chain ideas have the following 3 types

a. Notary Public Mechanism: Two people holding tokens with different system values need to be exchanged through an exchange, which acts as a notary public. Exchanges are centralized; there are also decentralized systems that perform the same role, such as Ripple.

b. Sidechain / Relay: The sidechain can be regarded as a function on the blockchain protocol. For example, in the BTC system, a side can be equivalent to a node, but this node may have some original systems Features not available, such as better performance. The relay is the way the two systems are connected in some way, which is also the way currently used by Pokadot and Cosmos.

c. Hash lock: Hash lock is the technology used by Lightning Network. Use hash lock to lock the transaction token of the initiator, and let the receiver generate the cryptographic proof (private key) of the payment before a certain time through the time lock, which is consistent with the previously agreed hash value, then Can complete the transaction.

At present, there are two kinds of cross-chain solutions:

a. Distributed private key control: In the process of the aforementioned middleman role as a cross-chain intermediate point, cross-chain transactions become an operation that needs to be locked and unlocked, and the tokens on the original chain are managed through the private key Rights operation, this kind of operation to achieve distributed control needs to use distributed private key control.

b. Hybrid technology: It is a combination of several rather than a single cross-chain technology.

The current popular parallel chain of Polkadot, or the Hub of Cosmos, takes a chain as a cross-chain “chain”, which is the center of the cross-chain. However, we believe that there is no need for such a central point in the block chain, only a way to communicate.

We designed the cross-chain technology of TDN, whose network topology is a recursive unidirectional graph model, instead of having a central main chain to communicate with, which can be understood as a DAG network, but every node in the network is a block chain or a service.It supports different data structures, different consensus algorithms, different licensing mechanisms and account systems, and applications can communicate with each other, and trust can be transferred and accumulated.In this system, the upper and lower applications communicate through the RPC interface, and these applications can be affiliate chains or public chains.Or central services.

Putting it into life, we feel that everyone should have a distributed system. This distributed system communicates with the outside world’s shopping system, messaging system, health analysis system and other information, and everyone’s distributed system can carry out Communication across systems. This is also the direction in which I think the most current blockchain application should focus. He should not focus on a certain main chain, but should treat everyone as a separate node and make a design that can communicate. This is the most important thing. The landing of the essence.

SoLiD Chinese Community : The data sovereignty revolution of the World Wide Web

Xie Yang: Founder of Steam Memory, founder of SoLiD Chinese community, former CTO of Good Things Portal, Byte Dancing Hacker.

The current status of the Internet is the extreme insecurity of personal privacy. The leak of Facebook’s 50 million user data affected the US election. Today, another 7,000 pages of documents broke out, exposing how Facebook uses user data to make money and crack down on opponents.

Our goal is to rely on SoLiD to reconstruct the relationship between [people and applications] and [people and data].

The SoLiD project, led by MIT, is a reinventing Internet project initiated by Sir Tim Berners-Lee, the father of the World Wide Web. In recent years, frequent data breach scandals and public privacy security questions on the Internet have caused Sir Lee to be dissatisfied with the currently oligopolistic Internet. He established SoLiD to try to bring a new paradigm for web application development, with the goal of returning data to user ownership and Control and which users and applications authorize users to read and write their data.

The most important decision Sir Lee once made was to distribute the source code of the Internet for free, making the Web an open and democratic platform. The original intention of the Web is that everyone can comment on anything and have their own Web space. There is no need to make any compromises. We can visit endless websites and post comments and opinions on these websites.

Everyone can also distribute their great ideas to the whole world through the Web. Developers can publish their ideas anytime, anywhere without the permission of anyone, instead of developing programs that are reviewed by the App Store or WeChat.

Of course, many technologies and companies now provide great convenience for our lives. But now that we have lost control of our personal content on WeChat and Weibo, coupled with increasingly serious privacy issues, it has seriously affected the universality of the Web. Many applications are mandatory to log in to third parties such as WeChat Application login method. The barriers between different social media and social relationships are too high to move freely.

The role of SoLiD is to take back the Web from the company and return it to the hands of individual users; using Solid, users can decide where data is saved and shared, and the control of the location of the data is in the hands of users. Under the control of their own data, switch and use the applications they need without restriction, or authorize to anyone and any application. This web of application and data separation will drive a new round of innovation.

Everyone can build a SoLiD server or use SoLiD to develop applications. For developers, it has the following characteristics: its application has multiple backends, and one backend interacts with multiple applications; SoLiD uses Linked Data and RDF to solve interoperation Sexual issues; using JSON-LD, each piece of data can be interconnected with another piece of data; data fragments and their semantics are mutually compatible; different data sources can be linked together; compatible with the React ecosystem

The project itself is very difficult to achieve, but we think its significance is important. We believe that the development of the Internet is like the epitome of human development. The tribal society of collection is like the road of blogs and personal websites. The representatives of the agricultural revolution are FLAG and BAT. The future industrial revolution is cloud computing, AI, and blockchain In this direction, data democracy is the inevitable way. Data will eventually become a part of our lives. We no longer have only physical life, but also a kind of data life. When such a life is born, do you want to control your own data, or do you want someone to tamper with your data at will? How about it?

As the ecological and technical community of Polkadot, PolkaBase is committed to creating a new-generation community that can promote the implementation of blockchain technology and applications, generate high-quality content and product value, and attract external resources and teams in the blockchain industry. The five aspects of popularization, ecological incubation, university-industrial integration, value users and internationalization make up for the shortcomings of the existing community and promote the deepening and development of the ecology.

In this technology-driven sharing session, PolkaBase and the core members of several large domestic developer communities gathered in a rare way to share the core issues of cutting-edge technologies. Interestingly, though technologies are different, they all revolve more or less around the issues of data communication and confidentiality.In this era, the compatibility between openness and privacy is the biggest network problem.

Within three hours, there were interesting developments on open source, Web3.0, cross-chain technology and blockchain data and application issues, as well as many sparks of inspiration.We want traditional developers to understand the appeal of open source, and we want developers who are already in the field to take full advantage of community platforms to collaborate and communicate with each other. After all, that’s what open source is all about.

In addition to the communities present, PolkaBase also has a lot of cooperation with the open source community, CSDN, DoraHacks and other communities committed to the development of open source technology in China. PolkaBase will continue to focus on the promotion and implementation of open source and cross-chain technology in China in the future, so as to continuously bring fresh vitality to the technology community.

About PolkaBase

PolkaBase is a blockchain 3.0 ecosystem based on Polka technology. It is committed to creating a new generation community that can promote the implementation of blockchain technology and applications, generate high-quality content and product value, and attract external resources and teams in the blockchain industry. ; In the five areas of technology popularization, ecological incubation, university and industry integration, value users and internationalization, make up for the shortcomings of the existing community and promote the deepening and development of the ecology.

Stay Tuned with us:

Twitter: PolkaBase https://twitter.com/Polkabase_com?s=17

Medium: PolkaBase https://medium.com/@polkabase

WeChat Official Account: PolkaBase

YouTube: PolkaBase https://www.youtube.com/channel/UCquHLrpaU96VpI041FuIOOw/featured

pLIBRA and its Phala.Network is a Web3 grant project on trusting computing and privacy. Amazing they got the grant in just a month. As a Polkadot ecosystem that is centered on technology development and linked to international capital and industrial resources, PolkaBase invites the pLIBRA team to give us some tips and thoughts.

Hello there! It’s been a while since our team has been known for running the Libra China community, but little knows that we’ve done beyond that. We developed a project for Libra. It is called pLIBRA, which is implemented on a privacy preserving blockchain network called Phala.Network.

As a start-up team, we were very lucky to get granted by the Web3 Foundation. As we’ve then received lots of queries from these who want to use Substrate framework for developing or to transform their project to Polkadot ecosystem, we write this article to summarize our journey of applying for the grant and hope it would help you.

What is pLIBRA? What problem to solve?

Let’s have a brief look at our project first. pLIBRA is a privacy-preserving protocol dedicated to protecting Libra users from privacy leaking through trusted computing technology. It is the first application of Phala.Network, a confidential contract platform based on Trusted Execution Environment (TEE) in order to provide enterprises and users with infrastructure for trusted computing and data protection.

Through pLIBRA, we hope to present to the world how the Phala.Network could empower public as well as consortium blockchains (such as Libra) and make the smart contracts on these chains resistant to privacy leaking:

Transactions and data are completely transparent to public on Ethereum and other public chains, therefore commercial data and users’ private data can hardly be handled on them, which significantly limits the real use of public chains. Data on consortium blockchains has less risks on security, as the information is only shared within the allied parties and access rights can be controlled.

But the crisis of trust still exists, as long as the data can be replicated,

• Members in the consortium may leak information intentionally or unintentionally;
• When members do not want to fully share data with each other, a trusted third-party is still needed to execute business;
• Data cannot be effectively destroyed after it expires, which leaves risk on security.

Libra, with a user base of 2.7 billion from Facebook, has caused a huge sensation globally in technology and finance. Facebook’s capacity of bringing huge traffic into blockchain industry is intimidating, while its recorded credibility can not satisfy users and the government. Therefore, that how Libra can protect its private data has been widely doubted: for example, how to ensure that information connecting main-net address and KYC of Calibra wallet will not be leaked, and how to use smart contracts and Dapps on Libra not worrying about data’s being misused?

pLIBRA is precisely designed for this common scenario.We have introduced trusted computing technology with Trusted Execution Environment (TEE) on hardware as a solution, in order to provide a reliable and efficient data protection layer for public and consortium chains.

What is the relationship between pLIBRA and Substrate?

pLIBRA’s public chain Phala.Network is built on Substrate. Phala.Network embraces a hybrid architecture of blockchain and TEE, where data from TEE is openly verified through blockchain to ensure system security. Therefore prior to the project, we had the choice of either deploying smart contracts on existing chains, or creating our own chain. We chose to build a public chain on Substrate.

The option of doing smart contract was ruled out at the very beginning. The core logic of Phala.Network is to verify remote attestation certificate (a type of x.509 certificate), which is apparently too complicated and expensive if it would be run on smart contracts of public chains like Ethereum. It is simply unrealistic.

Substrate can solve these problems. It modularizes the entire public parts behind blockchain, including the network layer, consensus layer, seamless upgrade and governance, etc., so that we only need to focus on developing business on it. An exclusive chain can provide us with unconstrained resources as well as Rust’s open source ecosystem, giving us more more space than EVM.

The vision of pLIBRA and Phala.Network is to provide data privacy for Web 3.0 ecosystem. In the vision, interoperability with other blockchains is essential, so we need to rely on Polkadot’s cross-chain function. Substrate is Polkadot’s “dedicated” development platform, on which we can easily become a parachain and access Polkadot at a low cost in the future.

What kind of experience is like developing with Substrate?

Substrate offers a friendly set of development tools and a rich pool of infrastructure. Even junior developers can easily follow the tutorial and launch a simple chain within an hour. Substrate provides abundant modules for developers to use directly, such as common tokens, staking, voting, and etc.

Substrate has already had a complete infrastructure that allows you to find block data and interact with chains on the Substrate WebUI without coding. In addition, it also has SDK, blockchain explorer, and wallet support under Polkadot ecosystem.

It is worth mentioning that Substrate’s core modules and Runtime are developed on Rust. Rust is a language known for its security with complicated syntax. Although it is more difficult to develop with Rust, the benefits of high security and excellent performance will worth you all the efforts. Phala.Network is therefore using Rust not only in the on-chain environment, but also in running TEE. This is not just a coincidence.

Web3 Foundation Grant Introduction

To start with, the Web3 Foundation is a foundation in Zug, Switzerland led by Dr. Gavin Wood, co-founder and chief technology officer of Ethereum and founder of Polkadot. Web3 Foundation will fund research and development in structuring stacks behind decentralized networks. To learn more about the Web3 Foundation, you can visit web3.foundation.

As a part in propelling Web3 ecosystem forward, Web3 Foundation provides a grant program that provides financial support mainly for software development, research, technical education, and community activities on Polkadot and Substrate. The maximum grant for one technical project is $100,000, but the project should not rely solely on the grant for its early expenses.

Applying for a grant below $30,000 will be quick, and a grant between $30,000 and $100,000 will take a bit longer. The team can apply multiple times, but they need to complete the previous targets (which is required to be consistent with the description in the application) before they can get the next grant. The Web3 Foundation is primarily interested in projects that can be completed within three months.

Chinese projects that already got the grant

• pLIBRA: Privacy Smart Contract Infrastructure + Libra Bridge
• Polkawallet: PolkaWallet
• PolkaWorld: Domestic community
• Ameba
• Stafi
• Bandot
• Laminar

Chinese projects that are applying for the grant:

• Incubator LongHash
• Game chain Darwinia Network
• Hashquark
• Definex
• Celer
• ChainX

Why do you want to apply for the grant?

First of all, we hope to provide component services of private smart contracts for a variety of public and consortium chains, so we need Phala.Network to be capable of covering cross-chain functions.

Based on which, we need to use the Substrate framework for developing and after Polkadot’s launching main-net, to cross-chain Phala Network’s privacy protection with other chains’ smart contracts through Polkadot’s relay chain.

In this context, we as a start-up team, hope to participate in the early stage of construction of Polkadot ecosystem, so to get feedback from other subsystems of the Web3.0 ecosystem, and reflect the feedback in our design.

What did you submit in order to get the grant?

A text material is submitted on Web3 GitHub, including project descriptions, reasons for selecting cross-chain object (why Libra?), why Polkadot, introduction of core technology, open source or not, team introduction, project website, open source experience , road map design, etc. Details can be seen:

https://github.com/w3f/Web3-collaboration/blob/master/grants/speculative/pLIBRA.md

A One Pager is provided to introduce our project in a concise and clear manner.

What to pay attention to in application?

The text material on GitHub must be prepared sufficiently in detail. Of course, the premise of preparation is that the technical solution has been thought of clearly and reasonably.

It is important to explain the value of the project and the value it provides to Polkadot.

In the process of application, if there has already been some achievements, you should try to show it. If not, you should try to show previous outputs of other open source projects, reflecting the team’s capability.

How to keep in touch with Web3 foundation after application?

First, our team submitted the grant in July, and then fortunately caught up with Web3 & Polkadot China Tour.

With help of Qinwen, head of the Web3 Foundation China, we met Dr. Gavin Wood, founder of Polkadot, Dr. Alistair Stewart, Web3 technical consultant, and Nicole Zhu, Parity engineering expert, in Chengdu in September.

Fortunately, I was able to communicate face-to-face with these Web3 experts and got a better understanding of Substrate’s development framework, and a clearer answer to the needs of Web3.0 construction. Of course, I also used the opportunity to introduce Web3 Foundation with pLIRBA and its technical solutions.

After this converse, we revised the submitted proposal, and then we got the good news of “pLIBRA got the Web3 Foundation grant”! After more than a month of research on the architecture, we have a clear design of the technical solution of Phala.Network.

In September, Web3 Foundation came back to China. At this time, as a Web3 granted project, we are not only a “student”, but should take the initiative to be an “evangelist” who promotes the Web3.0 concept. Therefore, in the Polkadot China Tour in September, we co-hosted the “Polkadot China — Beijing Meetup” with Web3 Foundation.

The event was held at Tsinghua University and was divided into Substrate Workshop for developers and Meetup for the entire Web3 ecosystem. The event turns out to be very successful with lots of hardcore developers coming to the Workshop. In this event, with support of the Web3 Foundation, we also consulted Dr. Alistair Stewart on the design of cross-chain communication, which helped a lot to structuring main network of Phala.Network.

In addition, communication with Web3 Foundation and Parity partners through Emai, riot and other communication tools is also very important. We were convinced that the Web3 Foundation project manager is very responsible and active, having a significant role in helping and facilitating the grant developers. For example, when we submitted our white paper of technical design, we received reviews from two senior experts of the Web3 Foundation. It has helped us in improving many details. The Polkadot community is also actively respondent on technical issues with basically no gap.

What to do after getting the Grant?

First, getting a grant means that the development agreement between the development team and Web3 Foundation has taken effect. You must pay attention to the milestone! Regardless of how busy the business is, delivering quality milestones on schedule is essential.

Second, as a component of Web 3.0, each project shoulders the task of promoting Web3.0 techinical concept, because at this time you are not just a user, but a member of the ecosystem. Of course, we are fortunate to have support from the Web3 Foundation in China, as well as the help of two communities, Polkaworld and PolkaBase. Write more articles or participate more in offline events promoting Web3, there will be a return.

Thirdly, update your produce continuously. Getting Grant is just the beginning of recognition. It doesn’t prove that you are stronger than other competitors, or your business it running smoothly, either it can help you get market profit. Just like when we were a student, being recognized by the teacher doesn’t mean you can get into ideal school. Everything has just begun.

To know more about pLIBRA:

pLIBRA Website: https://www.plibra.io/

Phala Network and pLIBRA White Paper: https://docsend.com/view/z55p26w

pLIBRA Github Link: https://github.com/w3f/Web3-collaboration/blob/master/grants/speculative/pLIBRA.md)

And Stay Tuned with PolkaBase:

Twitter: PolkaBase https://twitter.com/Polkabase_com?s=17

Medium: PolkaBase https://medium.com/@polkabase

WeChat Official Account: PolkaBase

YouTube: PolkaBase https://www.youtube.com/channel/UCquHLrpaU96VpI041FuIOOw/featured

On the date of 6th Novermber this Wednesday, PolkaBase held the first sharing session of Meetup Empower Industry at ITC International Talent Community, Hangzhou. Several granted polkadot-based projects shared their mindsets and progress of their landing applications such as Internet of Things, AI, and PIV (personal identity verification).

Era of Data Sharing in Internet of Things — MXC Smart City & MatchX IoT Tech.

Sheen Hu, CEO and co-founder of MXC Foundation and MatchX IoT Tech Ltd, A global leading AI Sensor, IoT and Smart City technology solution provider, grant rewarder Wave1 from Web3 Foundation presents their technology breakthroughs.

Developed by the non-profit foundation based in Berlin, Germany, the company is dedicated to the research and application of low-power wide-area Internet of Things (LPWAN) and blockchain technologies. The MXProtocol polar domain protocol is the core of MXC, based on the complete decentralized protocol based on LPWAN.

As one of the pioneers of the hardware blockchain, MXC developed the AI data sensor and big data cloud platform based on hardware, and combined with the blockchain encryption protocol, while meeting data privacy, analysis and intelligence on hardware transmission.

Privacy-preserving Libra — pLibra

pLibra is the first application of Phala Network, a confidential intelligent contract platform based on Trusted Computing Technology (TEE), which aims to provide enterprises and users with infrastructure for confidential computing and data protection.

Founded in 2018, this talented team has always been committed to the development of trusted computing technology. The founding team has extensive Internet experience: Google, Tencent, Didi, Dajiang. Behind the team is research support from cutting-edge technology: Fudan University System Software and Security Lab.

In the current blockchain application, the data of the public chain is completely open, and it is obviously inappropriate to spread the privacy data. The better case is alliance chain, in which the data is only spread between the alliances, but it cannot completely eliminate the intentional or unintentional disclosure of the alliance members, and Third-party organizations that do not join the alliance cannot call the non-confidential data they need, and so there are still many inconveniences.

Identity Privacy — Litentry

Litentry is an authorisation and data exchange infrastructure on Polkadot substrate. Team base of Litentry is in Berlin, Germany and is a grant rewarder of Wave 3 from Web3 Foundation.

The same massive identity data also poses a problem for enterprises. On the one hand, SMEs must use the centralized network platform to serve through information authorization, which has a dependence on the platform and cannot freely choose the tools for development. Some real information service providers also need to pay the platform.

Matter fact, the information obtained by the giants is becoming more and more bloated, which not only increases the systemic risk of identity leakage, but also requires high management costs to avoid single points of failure, and the risks and costs are ultimately passed on to users.

Essences of Our Guests

MXC Foundation and MatchX

MatchX offers the world’s longest distance low-power gateway with a 43 km link range. AI Sensor of MXC costs 1/5 of regular sensor annually, which enable to build an urban operating system acting as city’s brain, which has been sold to more than a dozen countries, including the German Railways and Bosch in Europe. MatchX solves technical solutions as follows:

• Solving the problem of IoT conflicts in the free frequency band through ACC
• Solving the problem of LPWAN IoT downlink resource allocation through intelligent bidding technology
• Solving the problem of cross-chain transactions of IoT data through the cross-chain data market

Current clients: Deutsche Bahn, BOSCH, Berlin Science and Technology Bureau, Carnegie Mellon University, Canadian Tires, Enlink, M2B, Aikang Technology.

Current Investor/KOL: Fenbushi Capital, Backward Fund, Jiedian Capital, Pre-Angel, Rongming Capital, Jiangsu Aikang Technology, Great Wall Club GMIC, Du Capital, LongHash, Blockassets, Candaq Ventures, Mandy B, Crypto Wolf, Wandarin, Atlantic Labs, etc.

For example, in Shenzhen, MXC has been applied to shared parking spaces, automatically manages parking spaces through 500 sensors, and through AI big data analysis, it can learn about customer behavior and consumption habits without obtaining customer’s private information, which is convenient for enterprises and governments to manage.

Official website:

MatchX: https://www.matchx.io

MXC Foundation: www.mxc.org

White paper:

MXProtocol: https://www.mxc.org/hubfs/WP/MXC_technical_whitepaper.pdf

Smart Machine Bidding: https://www.mxc.org/hubfs/downloads/mxc_smb_whitepaper.pdf

MXC Data Economy: https://www.mxc.org/hubfs/WP/MXC_data_economy_whitepaper.pdf

MXC Tokenomics: https://www.mxc.org/hubfs/WP/MXC_economic_whitepaper.pdf

Official Social Media — Twitter: @MXCfoundation @matchx_iot

pLibra

• Compatible with Intel, ARM, and Huawei protocols, no special hardware is required
• Support any chain! It can help the alliance chain and the public chain to run smart contracts that need to protect confidentiality.
• Network effect: The goal is to become the world’s leading trusted computing protocol standard and trusted computing platform.

Currently TEE only runs locally, such as: authentication: By connecting TEE to a trusted and secure network, PhalaNetwork has greatly released the application scenario of trusted computing: smart contracts can also run in a trusted environment, solving a big problem in blockchain. PhalaNetwork can unlock the edge computing power of hundreds of millions of smart devices by expanding both ends of supply and demand.

Trusted Computing Eco-Win-Win Plan:

Purpose: Accelerate the national strategy

Planned objects: Alliance chain and alliance chain application; Independent intellectual property public ownership chain and application party; Web3.0 ecological builder.

Win-to-win method: Free trusted computing technology consulting; Customized construction of trusted computing facilities at very low cost; Join a trusted alliance for revenue sharing.

Official website: https://plibra.io

White paper: https://files.libra-china.org/phala-paper.pdf

Litentry

Based on the cross-chain ecosystem of Polkadot, Litentry is based on the cryptography of blockchain to enhance the security of user privacy data, ensuring distributed management of storage, authentication, relationship and source information, and ensuring different information layers. Trusted sharing, the realization of cross-link cross-platform identity information interconnection, allows users to more easily and safely use the virtual identity in the Internet.

Architecture:

Substrate Module Standard Definition

Lock parachain demo:

https://video.wixstatic.com/video/760d3a_fd3919e6e8944f5d8684b7224f84675b/1080p/mp4/file.mp4

Official website: https://www.litentry.com

Lite Paper: https://8e05e2d3-ada2-45dd-8426-b69a066e9210.filesusr.com/ugd/760d3a_8189a4a6eba9472cacc24fdf499b7e94.pdf

GitHub: https://github.com/litentry/

PolkaBase is dedicated in empowering Polkadot application

PolkaBase is a global leading projection empowering developers and end-users of the polkadot ecosystem, which is dedicated to building a technology that can promote blockchain technology and applications, generating high-quality content and product value, and attracting the outside of the blockchain industry. A new generation community require that, in the future reality scenario, data resources need to be shared across several industries and databases.

Candaq incubates PolkaBase

The incubator of PolkaBase, Candaq Group, based in Berlin, Silicon Valley, Singapore, Beijing, Shanghai, Hangzhou, Shenzhen, has been a fintech and blockchain front-runner for years.

In 2013, Candaq created and still maintained the nice running of China’s first cryptocurrency, ZCC. And in 2014, we initiated a series of impactful crypto-based charity events.

Throughout years, Candaq has incubated and participated in world’s best-known projects, including ICO.com, CertiK, ThunderCore, Harmony, RChain, and as the first-round seed investor of Polkadot.

Our Next Steps:

The Polkadot technology in blockchain technology is the basis for multi-platform multi-project data communication and communication. The technology ecology created by PolkaBase is to popularize this technology into the projects and industries that can be landed. .

At present, PolkaBase has initially established cooperation with the domestic technical community, industrial industry, open source community, language community, software community and continued to advance.

• Boost up of globalisation with our partners in Berlin and Singapore
• Help projects on Polkadot ecosystem landing in China
• To promote more online activities, we will conduct more online live video solutions on the polkadot technical level, ecological projects, and industrial applications in the form of online video; and face-to-face interview video production of the polkadot ecosystem
• Strengthening the production of its own media content and partner media cooperation: the output of technical content, industry content, open source content, practical operation of the code language, and cooperation with international media at all levels
• Continue to deepen the links between China’s open source community and the programming language community, from COSCon, to build bridges between the blockchain and the software industry, and create more opportunities for Polkadot to land

Appreciate for Reading!

We “sprayed” many gifts to many of our attendees, Kusama the Canary Network Limited T-shirt in “No promises Edition” and “Pink Canary Edition”, and our limited PolkaBase hoodie and cups.

This session is the first sharing event by PolkaBase, held in China. In addition to several cutting-edge blockchain projects, it also invited foreign visiting guests, traditional industry guests and partners of the developer community to discuss the technology with blockchain！

Combining cross-domain opportunities and collaboration, in the future, we will continue to pay attention to the promotion and landing of cross-chain technology in China, and continue to find breakthroughs in cooperation between industries！

Appreciation to All of Our Partners for Their Supports!

Stay Tuned with Us:

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For a long time, when the blockchain practitioners discussed about the general direction of this industry, the first topic put on the table is always the technology: where is the breakthrough of blockchain technology and what kind of application scenarios can be grounded. As if the technical problem was solved, the new world would come.

Like other teams with a programmer background, PolkaBase team has been thinking about the question: How much has technology affected in the development of a project?

Over years, the struggling problems in the industry have always existed: the infrastructure technology cannot support the transmission of massive data, while the top-level applications have no real users. There are two different difficulties behind. One is technology, which has been explored in the past. The other is the imperfection of the ecosystem itself. Majority of ecosystems lack depth and breadth.

Bitcoin derived mines, wallets and exchanges, as an ecosystem for tools of trading. It is the first generation of the blockchain industry. Subsequently, the emergence of the Ethereum smart contract brought a wave of rapid development of dApp applications, and constantly tried to commercialise and practicalize the blockchain, which led to the second-generation ecosystem. The centre of the ecosystem is the project side of each application. Surrounding the applications, investors, developers, related tools and other applications gathered together, the future yet to come.

From a technical point of view, there have been many high-quality projects since the genesis of Ethereum. Last year’s battle for the public chains was accompanied by a lot of ambitious project participants, but the heat has not produced a wide range of radiation and influence, ended with a short enthusiasm.

The crucial reason is that the project did not create a corresponding ecology. The community relationship between investors and project parties only is narrow and lacks the continuous growth.

Therefore, the bottleneck in the blockchain industry is not only technology, but also a deeper level of ecology.

ConsenSys pointed out in an earlier report that the blockchain ecosystem has been wandering between the extreme monopolization by a single project (such as Bitcoin) and complete decentralization, but neither of these is conducive to industry development. An ecosystem environment can only be described as good when it is to build an interoperable application collection ecosystem based on a certain settlement layer.

This is consistent with the idea of the PolkaBase team.

After Ethereum, our team has been looking for the next project that enables a good ecosystem. During the period, we also consciously incubated several public chains with great potential, which once successfully attracted many projects to develop and apply. It can be said that the our PolkaBase team is already familiar with the direction and form of ecological incubation.

The first time when we contacted with Polkadot ecosystem was in 2017, when the battle for the public chains was spread across the industry. For example, the technical public chain, Rchain, brought surprises of Sharding and State Channels. However, there have been problems with the management’s approach to governance, delaying the progress of the project. And Polkadot was born, telling the industry this is a project originating from Ethereum but possibly beyond Ethereum.

Polkadot’s parachain and Ethereum’s Layer 2 each have their own advantages, but their purpose is the same: to be the the settlement layer and to solve the capacity constraints in the infrastructure, for the upper level of ecosystem services. And Polkadot has avoided some of the detours of the predecessors, and the speed of availability may be faster than that of Ethereum, which made major adjustments in the original structure.

As one of the first institutions to incubate the Polkadot ecosystem project in China and assist these projects to apply for the official Grant, the PolkaBase team has always had a lot of contact with the engineers of Parity. Based on a deep understanding of each other, that Polkabase will build an ecosystem community for Polkadot is a matter of course.

So what is the ecosystem needed in the blockchain 3.0 era? PolkaBase believes that there are three main points:

1. Ecosystem which can devote the grounding of blockchain technology and applications

Most project ecosystems exist a short-term process of obtaining clout and maintaining and expanding through various activities, ignoring the education and development of technical knowledge. But for example, in Ethereum, many of the technical advancements and contributions come from engineers in the community and countless projects using their smart contracts to develop applications. It can be seen that technology pushes and applies the landing ecosystem, which is currently the core. If we can not attract more engineers and applications to develop on the infrastructure level, it is unrealistic to go beyond Ethereum and become a true new generation of ecosystem.

2. An ecosystem that produces high quality content and product value

For a blockchain project at the forefront, many attempts are new, such as Polkadot’s own DAO, original governance, and creations of Rust. The community is not only the recipient of information, but also the experimenter. The community should collide and understand the different angles and feedback to the project side to promote the maturity of the project.

At the same time, the project’s own output channels are limited. A mature community should be able to produce valuable content together, help try out the new products or increase influence, and increase user engagement, which is a core of any ecosystem development.

3. An ecosystem that attracts resources and teams outside the blockchain industry

This is also the biggest challenge facing the current blockchain ecosystem, that is, the top application lacks user. Resource cooperation outside the industry is an urgent step for the blockchain project to go global.

Industry, universities, academic institutions, and even capital circles outside the industry, resources and cooperation of different industries are very important parts of the ecosystem of blockchain 3.0. Eco-projects should be able to work with governments and outside industries. By putting the application into practice and realizing the value, this technology can continue to develop.

Specifically for the Polkabot ecosystem, PolkaBase mainly wants to solve these problems:

(1) Technical language

The Rust language which grounds Polkadot is a fairly special-interest programming language at the beginning of its adoption. The current limited number of programmers who understand Rust and can use Rust for development has led to a lack of developer community size and quality, and more need for popularization and education of the language. PolkaBase will work with the Rust technology community and Substrate’s multinational community to promote Rust among programmers.

(2) Ecosystem Node

For the majority of small and medium investors, how to participate in the ecological process guide is not clear and easy to understand. The translation of technical articles is speedy but the language is not local enough. The feelings of alienation and avoidance naturally arise between small and medium investors and projects.

For the project side, Chinese teams which have interests in building Polkadot nodes and participating in parallel chains and verifiers, there are many technical and process issues that are not answered by a unified and easy-to-understand technical solution.

PolkaBase has a wealth of relevant experience and is familiar with a whole set of processes that can effectively bring investors and project parties into the Polkadot ecosystem.

(3) Combination of Industry and College

Blockchain technology is often limited to its own industry, lacking the combination of technical universities and industrial organizations and associations outside the blockchain, thus losing opportunities to promote communication, experience learning, and talent integration.

PolkaBase has extensive resources in universities and industry circles, such as the University of Tokyo Blockchain Association, Tongji University Blockchain Association, Zhongguancun Blockchain Technology Application Alliance, IEEE Electronic Engineering Association, Internet of Things Industry Association, Zhejiang Financial Technology Association, etc. Universities, industry and associations work together to demonstrate and implement Polkadot’s technology outside the industry.

(4) Participation of Valuable Users

The value of the community is scarce. Such users who can generate content, join the ecosystem to contribute, learn and evolve technology can not be acquired by short-term marketing. They need to recognize the core values ​​of the community after deep communication and find peers and mentors who can make progress together. This slowly accumulated user group will actively participate in the ecosystem.

PolkaBase is a technically-inspired team that has top-notch engineers in many fields and understand the programming so as to create stronger links with them.

(5) Insufficient Internationalization

The Polkadot project itself and its communities have very limited interactions and communications between regions. There is a lack of a community ecosystem that has the ability to cross-industry and can connect with the ecosystems of various regions and industries, as a window of international communication to break through the gap between this information exchange.

In addition to having offices in China, PolkaBase has mature resources in Germany, Singapore, Japan and other places, which can spread the ecosystem of Polkadot to more areas and create more powerful influence.

These above problems are actually the difficulties faced by many project ecosystems. It is also obstacles that we must overcome to the further development of the third generation of ecosystem. It is not easy to do well, nor is it a one-night work.

What PolkaBase wants to do is this ecosystem that is centered on technology development, linked to international capital and industrial resources, and matched by blockchain 3.0.

Most of PolkaBase’s sponsoring teams are from Candaq in 2012, which is a group of senior practitioners who have been in the field of long-term blockchains for more than 7 years. Candaq is a believer in new financial technology and blockchain revolutionary technologies, focusing on entrepreneurial incubation in the areas of financial technology and blockchain. Over the years, Candaq has established a world-class network of partnerships with academic research institutions, venture capital and cryptographic communities. The PolkaBase team has members from China’s first blockchain development community dating back to 2012, as well as organizers from China’s largest blockchain hackathon, early community builders of several star projects, and overseas blockchain activists. The team will be integrated into the construction of the Polkadot technology eco-community with years of industry experience and a deep understanding of the blockchain.

The newly established PolkaBase is no difference from what the team has always been doing. Many times in the past, we have always created an ecosystem through incubation projects, resource integration, and community building to make technology go further.

This time, we want to go further with Polkadot.

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