On October 30, 2024, the "Privacy Computing & Blockchain Forum" of the Global Data Technology Conference (GDTC) was grandly held in Beijing. Experts and representatives from over ten research institutions and enterprises, along with hundreds of industry guests, jointly explored the latest developments in privacy computing and blockchain technologies and showcased their extensive applications in data circulation and the construction of digital trust ecosystems.

Privacy computing enables data to be "usable but invisible," featuring encrypted data aggregation and rapid value verification. 

Blockchain technology leverages chain - like data structures for data verification and storage, employs cryptography to ensure secure data transmission and access, and utilizes its tamper - proof nature for electronic contract performance and data circulation auditing. At this forum, experts from research institutions and enterprises such as China Unicom Technology, China Mobile Research Institute, Cloud Computing and Big Data Research Institute of China Academy of Information and Communications Technology, Science Research Institute of the Ministry of Transport, Beijing Computing Center, Shanghai Data Exchange, National Engineering Research Center for Big Data System Software of Tsinghua University, Shenzhen Shuxin Technology, Saizhi Industry Research Institute, Ant Group, Beijing Digital Intelligence Pioneer (a subsidiary of Capital Information), Lanxiang ZhiLian, Information Technology Center of China Mobile Communications Group, and Huakong Qingjiao engaged in a lively discussion on how privacy computing and blockchain technologies can empower data circulation and utilization. They offered new ideas and approaches for achieving efficient data circulation, unlocking its value, and building a digital trust ecosystem.

Ms. Di Xiaofeng, an associate researcher from the Science Research Institute of the Ministry of Transport, introduced the exploration of privacy - based transportation data sharing and application in the transportation field. In recent years, the state's forward - looking requirements for big data have been increasing, and the transportation industry has been more focused on data elements, aiming to enhance industry regulation and public service levels. By establishing a data exchange and sharing platform, cross - regional business communication and data interoperability have been achieved, providing strong support for industry regulation and public services. At the same time, Ms. Di Xiaofeng also shared award - winning cases from the "Data Elements ×" competition organized by the National Data Bureau and relevant departments, and looked ahead to the prospects of joint data analysis and application within and outside the industry.

Wang Chen, the Chief Engineer of the National Engineering Research Center for Big Data System Software at Tsinghua University, mentioned in his keynote speech that under the significant opportunity of accelerating the development of new - quality productive forces, the industrial sector also urgently needs to promote the construction of industrial data element systems and data resource management systems. Data asset management includes data resourcing and data assetization, and requires the design of system - oriented technologies that drive circulation, sharing, and development and utilization. It also aims to establish a system to solve data circulation issues and build a unified data element market, providing strong support for data value - adding.

Data Encryption and Tamper - Proof: Blockchain Technology Empowers Trustworthy Circulation of Data Elements

In the wave of digital transformation, data has become a key production factor driving economic and social development. With its unique advantages of decentralization, immutability, and high transparency, blockchain technology constructs a distributed ledger to ensure that data circulation is fully traceable and accountable. This effectively enhances the trustworthiness and circulation efficiency of data elements, opening up new paths for trust - based data sharing and value release.

Xie Yunlong, General Manager of the Blockchain Innovation Application Department of China Unicom Technology, mentioned in his keynote speech that China Unicom has proposed a cross - domain multi - party trusted collaborative computing architecture and technology system. This system combines various methods such as plaintext querying, on - chain sharing, secure multi - party computation, and federated learning to address the lack of trust mechanisms and classified collaborative systems for cross - entity collaboration. They have also developed a trusted data resource space. Through pervasive and reliable interconnectivity and full - process supervision, this effectively promotes the market - oriented allocation of data elements and creates a new engine for socio - economic development.

Li Zheng, Deputy Director of the Business Institute at China Mobile Research Institute, analyzed the current situation where existing technologies and environments struggle to support the large - scale development of data circulation. This is driven by the large - scale development of data circulation and the market demand for data elements at the trillion - yuan level. He noted that China Mobile relies on its "connection + computing power + capability" information service system to face the data element circulation market. They are building the next - generation data infrastructure, the Data Element Interconnection Network (DSSN), which is cross - industry, cross - regional, and cross - entity. This provides a low - cost, high - efficiency, and trustworthy circulation environment for data circulation and transactions.

Blockchain technology also has rich applications in the field of data asset transactions. It ensures that the ownership and usage rights of data assets are clearly defined by providing secure, transparent and traceable transaction records, which greatly enhances the trust between the two parties to the transaction and lays a solid foundation for the efficient and compliant circulation of data assets. Zhao Liutao, Deputy General Manager of Beijing Municipal Computing Center, analyzed the challenges of data asset transactions at the forum and further shared the research on the integration of privacy protection and supervision methods in data asset on-chain transactions. At present, Beijing Municipal Computing Center has made great achievements in on-chain asset encryption technology supporting decryption of supervisory parties, traceable stealth address generation technology of data asset counterparties, and auditable batch of on-chain data assets. confidential payment technology have all made very positive progress.

He Bin, the innovation technology director of Shanghai Data Exchange, shared the explorations and practices of Shanghai Data Exchange in the value trust collaboration system. By establishing a multi - chain integration network of data chains, asset chains, and application chains, they have created a unified data space environment in the data transaction chain. This environment ensures "data interconnection, spatial collaboration, intelligent scheduling, and trusted circulation" through cloud, chain, domain, bridge, and network integration. They have also established trusted data and asset management, forming a value trust collaboration system of intra - domain interconnection, inter - domain collaboration, and industrial integration, shaping the trust cornerstone of the data element market.

Wu Huicai, founder of Shenzhen Shuxin Technology Co., Ltd., further combined the concept of data space with the integrated application of privacy computing and blockchain. He introduced Shuxin Technology's practical explorations in the trusted circulation of data elements. Their goal is to achieve trustworthy, controllable, and traceable data circulation and usage that is efficient, low - cost, and widely applicable, fostering a co - creation ecosystem for data element value. Shuxin Technology has also introduced the integration of trusted data space with privacy computing and blockchain through practical applications. These include authorizing banks to use public data efficiently and compliantly and supporting cross - domain integration and utilization of data in the automobile industry.

Technology Integration and Innovative Applications Promote the Secure and Trustworthy Circulation of Data

During the round - table forum session, Zhao Gang, President of Saizhi Industry Research Institute, served as the moderator. He and the guests had an in - depth discussion on the innovation and application of data technologies. Pan Wuwu, a senior security expert from Ant Group, emphasized that privacy computing technology solves the problem of "usable but invisible" data in data circulation and pointed out that encrypted computing may become part of the data circulation infrastructure, complementing blockchain technology. Wan Cong, Deputy General Manager of Beijing Digital Intelligence Pioneer Company (a subsidiary of Capital Information), shared how smart contract technology can address the issue of data suppliers losing control and stressed the importance of keeping raw data within the domain and ensuring data is usable but invisible. Mao Renxin, partner and chief algorithm scientist at Lanxiang ZhiLian, believes that privacy computing and blockchain technologies can break the deadlock between security and efficiency in data circulation. He noted that these two technologies are gradually becoming the core infrastructure for data element circulation. Ru Zhiqiang, Technical Director of the Big Data Business Group at the Information Technology Center of China Mobile 

Communications Group, explored from a technical application perspective the standardization of privacy computing and blockchain in infrastructure, as well as the balance between security and performance. He also mentioned the challenges of integrating new technologies and implementing them in real - world scenarios. Jin Chen, the standardization director at Huakong Qingjiao, showcased through specific cases the application of privacy computing technology in scenarios such as cross - border financial institution account matching and financial regulation. He emphasized the complexity of the technology in practical operations and its high requirements for security. The speeches of the guests collectively depicted the significant role of privacy computing and blockchain technologies in promoting data circulation and secure applications.

After a series of wonderful keynote speeches and in - depth round - table forum discussions, the "Privacy Computing & Blockchain Forum" of the Global Data Technology Conference (GDTC) came to a successful conclusion. This forum brought together numerous experts from research institutions and enterprises. They extensively and deeply exchanged views on the latest developments in privacy computing and blockchain technologies and their applications in data circulation and the construction of digital trust ecosystems. As demonstrated at the forum, the integrated application of privacy computing and blockchain technologies is gradually becoming an important engine for promoting data circulation and secure applications. It also serves as a solid cornerstone for building a digital trust ecosystem.