QuarkChain Bi-weekly Project Progress Report: Mar. 23 — Apr.04, 2019

Welcome to the 28th QuarkChain Bi-weekly Report for the period from Mar. 23 to Apr. 04.

1. Development Progresses

## Added

- Added a P2P blacklist mechanism to prevent malicious peers attacking the network

- Separated dial-in and dial-out blacklists for better connectivity

- Limited the size of P2P commands to avoid memory crash DoS attack

- Added Ping/Pong commands during P2P communications to detect peer states

## Changed

- Disabled the funcion to start JSONRPC by default starting a cluster for better security

- Updated the P2P discovery format to avoid connecting to other networks

- Updated serialization of token balance map to prevent bloating block size

## Fixed

- Fixed node crushing issues when root chain is stale by loading old root blocks after the reboot

- Fixed the way to handle cluster peer IDs to avoid malicious peers pretending to be master servers

2. QuarkChain Guardian Plan updated

It has been one month since the Guardian Plan was announced. We received dozens of applications from different organizations and individuals around the world on the day when the Guardian Plan was announced. In addition, the contract address indicated that the amount of staked QKC has already exceeded 10 million! Staking QKC for votes is still ongoing. Extra early bird rewards will be provided if you take action and participate in the staking process now. The voting process will start in early April.

Please fill the following Google form to apply: https://goo.gl/forms/UcV9vgee6LnZ4hbG2

For more details about Guardian Plan: https://www.reddit.com/r/quarkchainio/comments/b2dt8l/quarkchain_guardian_plan_official_release/#TELEGRAM

For more details about how to stake for votes, please click:


3. Event

“POW’ER” Conference in Chongqing, China, Mar. 28, 2019

On Mar. 28, the leading blockchain information and financial services platform in China, Mars Finance, hosted the “POW’ER 2019 China Blockchain Contributors Annual Summit” in Chongqing. 150 blockchain technology enterprises, 1000 guests and more than 100 leaders from blockchain industry attended this summit. They represented six forces in the blockchain industries respectively included mining industries, exchanges, investors, projects and large companies. The summit recognized industry contributors who have persisted during the “cold time” of the blockchain society during the past year, and at the same time, launch a high-level dialogue on the topic of “2019 Hotspots, Opportunities and Challenges” to find the “key to the problem” of the blockchain industry in 2019.

Dr. Qi Zhou participated in the thematic debate on “From sharding, layering, and cross-chaining to view the evolution of public-chain technology.” He mentioned that the consensus, community, and power of the whole blockchain were diluting. QuarkChain, which is based on state sharding technology, not only supports high throughput but also has critical functions. It can support different consensuses, transaction modes, and token economies. Thus, the dilution can be avoided, which enhances the unity of the blockchain community.

QuarkChain was on 100 China Blockchain Contributors List

Mars Finance exclusively released the “POW’ER 100 China Blockchain Contributors” list, covering 18 individual awards, more than 200 enterprises on the list, which includes leading blockchain projects, companies and institutions from Chinese blockchain industries. QuarkChain was awarded the “Best Technological Breakthrough in Blockchain.”

Dr. Zhou attended TokenInsight’s online interview “Talk with CEO — Present and Future of Sharding Technology.”

During the interview, Dr. Zhou mentioned that the implementation of sharding was very complicated. For example, in Google, it took a team of 56 to 100 people a year or two to achieve an internal centralized sharding system.

QuarkChain has successfully avoided some issues at the beginning of the development process thanks to these experiences and lessons. We have found a feasible solution to the problem of “sharding overheating” based on the experiences. This is very important in sharding technology, whether from the perspective of security or the standpoint of token economies.

Upcoming Event

QuarkChain Is Invited to 2019 IEEE Industry Summit

2019 IEEE Industry Summit On Future Technology will be held from April 6th to 8th in Silicon Valley, USA. The summit focuses on IoT, big data, AI, and blockchain technology, bringing together city leaders, planners, professionals, and researchers from around the world.

Dr. Qi Zhou, co-founder and CEO of QuarkChain, will be invited to attend the summit. He will be delivering two keynote speeches at blockchain break-out sessions respectively, focusing on QuarkChain’s milestones that have been achieved in the past year. In addition, QuarkChain will set up a training venue at the summit on April 7th.

For the detailed schedule, please click:https://medium.com/quarkchain-official/quarkchain-is-invited-to-2019-ieee-industry-summit-2e0be6c8d35c






QuarkChain provides a secure, decentralized and scalable blockchain solution to deliver 100,000+ on-chain TPS

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