This two-volume set CCIS 2264 and CCIS 2265 constitutes the refereed proceedings of the 6th International Conference on Blockchain and Trustworthy Systems, BlockSys 2024, held in Hangzhou, China, during July 12–14, 2024.

The 34 full papers  presented in these two volumes were carefully reviewed and selected from 74 submissions. The papers are organized in the following topical sections:

Part I: Blockchain and Data Mining; Data Security and Anomaly Detection; Blockchain Performance Optimization.

Part II: Frontier Technology Integration; Trustworthy System and Cryptocurrencies; Blockchain Applications.