C. Xu, C. Zhang, J. Xu, and J. Pei, "SlimChain: Scaling Blockchain Transactions through Off-Chain Storage and Parallel Processing," PVLDB '21, Copenhagen, Denmark, August 2021.

Y. Huang, J. Tang, Q. Cong, A. Lim, and J. Xu. "Do the Rich Get Richer? Fairness Analysis for Blockchain Incentives," ACM SIGMOD '21, Xi'an, China, June 2021.

Z. Peng, C. Xu, H. Wang, J. Huang, J. Xu, and X. Chu. "P²B-Trace: Privacy-Preserving Blockchain-based Contact Tracing to Combat Pandemics," ACM SIGMOD '21, Xi'an, China, June 2021.

C. Zhang, C. Xu, H. Wang, J. Xu, and B. Choi, "Authenticated Keyword Search in Scalable Hybrid-Storage Blockchains," ICDE '21, Chania, Crete, Greece, 2021.

Z. Peng, J. Xu, X.-W. Chu, S. Gao, Y. Yao, and R. Gu, "VFChain: Enabling Verifiable and Auditable Federated Learning via Blockchain Systems," IEEE Transactions on Network Science and Engineering, accepted to appear.

K. Li, Y. Tang, J. Chen, Z. Yuan, C. Xu, and J. Xu. "Cost-Effective Data Feeds to Blockchains via Workload-Adaptive Data Replication," ACM/IFIP Middleware 2020.

H. Wang, C. Xu, C. Zhang, and J. Xu. "vChain: A Blockchain System Ensuring Query Integrity," ACM SIGMOD '20, Portland, OR, USA, June 2020.

K. Li, Y. Tang, B. H. Kim, and J. Xu. "Secure Consistency Verification for Untrusted Cloud Storage by Public Blockchains," 15th International Conference on Security and Privacy in Communication Networks (SecureComm '19), Orlando, FL, USA, 2019.

C. Xu, C. Zhang, and J. Xu. "vChain: Enabling Verifiable Boolean Range Queries over Blockchain Databases," ACM SIGMOD '19, Amsterdam, Netherlands, 2019. (news)

C. Zhang, C. Xu, J. Xu, Y. Tang, and B. Choi. "GEM^2-Tree: A Gas-Efficient Structure for Authenticated Range Queries in Blockchain," IEEE ICDE '19, Macau, China, 2019.

C. Xu, J. Xu, H. Hu, and M. H. Au. "When Query Authentication Meets Fine-Grained Access Control: A Zero-Knowledge Approach," ACM SIGMOD '18, Houston, TX, USA, 2018.

C. Xu, Q. Chen, H. Hu, J. Xu, and X. Hei. "Authenticating Aggregate Queries over Set-Valued Data with Confidentiality," IEEE Transactions on Knowledge and Data Engineering (TKDE), vol. 30, no. 4, pp. 630-644, 2018.

Y. Tang, Z. Xing, C. Xu, J. Chen, and J. Xu. "Lightweight Logging over the Blockchain for Data-Intensive Applications," The Second Workshop on Trusted Smart Contracts at Financial Cryptography, Curaçao, March 2018.