On August 20th, the 8th Hebei Province Innovation and Entrepreneurship Competition (Xiong'an Division) and the first "Intelligent Painting of the Future" Innovation and Entrepreneurship Competition in Xiong'an New District officially came to an end.
In addition to participating companies and teams fully demonstrating their own innovative capabilities, the evaluation process of the competition also revealed the genes of the "smart city" of the Xiongan New Area: the evaluation experts use the blockchain technology-based intelligent evaluation system to rate the participants and decide Out of the final ranking.

Blockchain browser diagram
The blockchain intelligent review system was developed and designed by the blockchain laboratory of the Xiongan New District Smart City Innovation Federation, and uses the open, transparent, and non-tamperable characteristics of blockchain technology to ensure the authenticity and fairness of the review results. Review experts submit project scores through the system, upload the score results to the blockchain in real time, and automatically complete the calculation of project average scores and real-time display of ranking results through smart contracts, which not only eliminates the need for manual verification, calculation, recording, and review, etc. It also solves the risk of malicious tampering with data that may occur in the traditional review mode.

Real-time scoring of participating teams on-site blockchain intelligent review system Figure
In addition, the blockchain intelligent review system uses identity anonymity and signature obfuscation technology, which makes it impossible for unauthorized users to associate the scoring results with expert identities, which meets the effects of traceability of the process and verifiable results. The blockchain intelligent review system is convenient to operate, friendly to interaction, visually beautiful, and has strong scalability and high availability, and can be widely used in various review and voting scenarios. According to the relevant person in charge of the Xiongan Blockchain Laboratory, the blockchain system is currently building a database of industry experts based on digital identities. Random number algorithms such as VRF and Commit Reveal will be introduced in the future. Each review will It is randomly selected from the corresponding industry expert database to further ensure the fairness and justice of the results.

The final ranking of the participating teams Blockchain intelligent review system Figure
The Xiongan Blockchain Lab was established in March 2020. It is affiliated to the Xiongan New District Smart City Innovation Association and is composed of academic experts and engineering experts who are deeply involved in blockchain technology. The laboratory focuses on researching independent and controllable blockchain technology, developing city-level blockchain infrastructure, supporting construction fund payment, digital identity and other applications, and is committed to serving the smart city construction of Xiongan New Area.