Qtum quantum chain

A review of what’s happening in the news from November 19 – November 25

This article will review the Qtum quantum chain project in detail over the past week (November 19th – November 25th). The news review will also include all the current developments in Qtum technology development. Please feel free to check them out.


Qtum Quantum Chain Research Institute: x86 SimpleABI protocol with Abigen Tools


The ABI for Solidity calls to external contracts is built directly into the language and Solidity is dedicated to building smart contracts. However, the x86 VM supports many different languages that are not specifically designed for smart contracts. This means we have to build the ABI on top of these existing languages. It might be possible to automatically build the appropriate ABI using complex language analysis libraries, etc., but it is difficult to use, restrictive, and not portable between languages.


The new VM we are designing should be able to call another C contract from your C++ contract, a Rust contract from your C++ contract, etc.


This ABI is much simpler than the Solidity ABI, but unlike Solidity it is called explicitly, that is, it can only call functions specified directly in the ABI file. As a result, this ABI tends to require more template code to handle simple things like calling functions or even just decoding the sent ABI data…… So, an ideal tool is code generation. We can use template code to generate functions so that developers can actually use them in a few lines of code.


Qtum quantum chain was invited to attend the 24th Annual meeting of American Chinese Finance Association

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Recently, the 24th Annual meeting of American Chinese Finance Association was successfully concluded in New York. Shuai Chu, co-founder of Qtum Quantum chain, attended the blockchain forum as a special guest and accepted an exclusive interview by the organizing committee. Attending the conference were Bo Liu, President of Bank of America Merrill Lynch, Henry Fernandez, Chairman and CEO of Morgan Stanley, Craig Allen, Chairman of US-China Business Council, and Xiao Feng, Vice Chairman of Wanxiang Holdings.


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The birth of blockchain comes with a historical opportunity, which opens up the concept of distribution. It’s potentially disruptive from a technology perspective, because it pushes the Internet from an information Internet to a value Internet. However, it is an indisputable fact that blockchain technology is still in its early stages and there are still many obstacles to overcome on the long road to development. Technically, how to balance decentralization and efficiency, how to effectively implement blockchain governance, how to simplify smart contract deployment and so on. In terms of application, there are still few industries that can be highly riveted with blockchain, and it is difficult to achieve large-scale implementation in the short term. In addition, the whole industry lacks enough good developers, and the talent pool is also slightly insufficient, which is not conducive to the sustainable development of blockchain ecology.

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31 area exclusive interview | Qtum yitay core engineer

How to cultivate technology in winter?

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In the face of the cold winter of capital, the competition between public chains is becoming increasingly fierce. According to incomplete statistics, there are only more than 50 blockchain public chain projects still alive in the global market.


With the development of the whole market, the cold winter of the bear market has affected the whole blockchain market. To survive this cold winter, strong technical ability is required as a support. Qtum quantum chain, as the most influential public chain project in the world, is also developing technology in such a cold winter.


Q: In the current blockchain market, the bitcoin ecosystem and ethereum ecosystem are far from real life. How did Qtum break the dilemma that blockchain technology is difficult to be implemented on a large scale?

A: Qtum quantum Chain is dedicated to the integration of bitcoin and Ethereum communities, and at the same time, the integration of blockchain on and off the chain, to create A third brand new blockchain ecosystem.


Qtum Research Institute: What are the highlights of enterprise solutions on the market?

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Qtum main network was launched on September 14, 2017, and has rapidly grown into one of the most influential public chain projects in the world in one year. Meanwhile, Qtum also takes technology export to more blockchain applications as its technical mission. Therefore, we launched the Qtum Enterprise project [1] with the goal of implementing a blockchain development framework to help developers build their own blockchain networks in one click [2]. To give the public a better understanding of the Qtum Enterprise Edition solution, we conducted a comprehensive and in-depth comparison with other blockchain development frameworks on the market. From the function, performance and other aspects, and put forward our understanding and future planning.


Qtum Enterprise[1] is a blockchain development framework implemented by the Qtum team. Qtum Enterprise is developed based on Qtum public chain and written in C++. The system is compatible with bitcoin’s UTXO transaction model and Ethereum’s EVM smart contract, and uses PoA consensus and DGP protocol to elect super nodes. The advantage of Qtum Enterprise over other development frameworks is its compatibility with bitcoin Wallet apps and Ethereum’s Solidity smart contract code. In addition, Qtum Enterprise provides one-click link sending tools [2] to help developers quickly build their own blockchain networks without having to learn too much about the technical details of blockchain.





Qtum quantum chain

Nov. 19 – Nov. 25 Project technical progress

Strategic product development and design implementation



Qtum Core Wallet


  • Update Qtumcore V0.17 code

  • Fix Qtumcore make check error in Mac OS

  • Continue testing Qtumcore V0.17 resource consumption issues


    Qtum x86 VM



  • Fixed refactoring account Abstraction Layer (AALv2) related bugs

  • Support contract address to handle contract call change correctly

  • X86 virtual machine development task list (progress) : http://github.com/qtumproject/qtum/labels/x86


Qtum enterprise edition


  • Confirmed QRC721+IPFS product prototype, working on first demo

  • On-chain storage product demo completed, fixed several issues

  • Release NFT, enterprise blockchain project investigation, IPFS+QTUM and other relevant documents

  • Enterprise edition explore more application scenarios


Base products and development tools updated


Qtum Wallet & Browser


  • Qtum new version mobile wallet module adjustment, and add new token function

  • Qtum Electrum updates the Electrum code

  • Fix qtum.info block browser:

    1. Complete qtumInfo API deployment documentation

    2. Partially incorrect transaction statistics on qtum.info


Qtum website updated



  • Qtum official website details optimization, and complete the new node map

  • Qtum official small program development completed, to be issued after account migration


Technical document update

  • QtumX mechanism of the new consensus document: https://docs.qtum.site/zh/SCAR-Consensus/

  • QtumX across chain trading module documentation: https://docs.qtum.site/zh/Canal-Cross-Chain/


Collaboration and exploration


  • The first demo of Qtum-BTC atom exchange has been completed and is being debugged

  • Provides API support for several projects, including Insight -API and Qtum Info-API


Github updates the address

Qtum core code: https://github.com/qtumproject/qtum

Qtum. Info browser: https://github.com/qtumproject/qtuminfo

Qtum Electrum：https://github.com/qtumproject/qtum-electrum

Qtum project collection, poke the always reap at https://github.com/qtumproject


We will in order to build sustainable ecological unremitting efforts, in the past week we main for optimization, and Qtum quantum chain in the future will continue to keep update weekly report every week, for we have any constructive Suggestions can leave a message below, let us become a global common witness Qtum quantum chain block chain indispensable important power of the new economy.