Collaborator(s): Prof. Show-Shiow Tzeng, Prof. Li-Chun Wang
This research investigates selfish mining behavior and its security implications in proof-of-work blockchains, using stochastic processes and Markov chain models to analyze profitability under different network conditions. It further considers multiple selfish miners, sharded architectures, and lightweight blockchain environments, demonstrating that conventional security thresholds may underestimate real-world risks and providing a theoretical foundation for protocol design and defense mechanisms.
| [J03] | S.W. Wang, S.S. Tzeng, and L.C. Wang, "SLChain: A Stochastic Lightweight Blockchain with Selfish Mining Attack Mitigation," in IEEE Internet of Things Journal, vol. 13, no. 7, pp. 13286-13304, April, 2026. |
| [J02] | S.W. Wang and S.S. Tzeng, "An Accurate and Efficient Analytical Model for Security Evaluation of PoW Blockchains with Multiple Independent Selfish Miners," in IEEE Transactions on Network and Service Management, vol. 23, pp. 11-27, January, 2026. |
| [J01] | S.W. Wang and S.S. Tzeng, "Accurate Estimation of Selfish Mining Rate by Stale Block Ratio in a Proof-of-Work Blockchain," in IEEE Transactions on Network and Service Management, vol. 23, pp. 880-895, January, 2026. |
| [C06] | S.W. Wang, W.L. Chen, and S.S. Tzeng, "Nonce Distribution in Bitcoin Blockchain," in The 25th Asia-Pacific Network Operations and Management Symposium (APNOMS 2025), Kaohsiung, Taiwan, September 22-24, 2025. | ||||||||||
| [C05] | S.W. Wang and S.S. Tzeng, "Security Analysis of Majority and Selfish Mining Attacks in A Blockchain with Sharding," in 2025 IEEE International Conference on Communications (ICC 2025), Montreal, Canada, June 8-12, 2025. | ||||||||||
| [C04] | S.W. Wang and S.S. Tzeng, "An Accurate Analytical Model for A Proof-of-Work Blockchain with Multiple Selfish Miners," in 2024 IEEE International Conference on Communications (ICC 2024), Denver, Colorado, USA, June 9-13, 2024 | ||||||||||
| [C03] | S.W. Wang, "Analysis of Earned Rewards In A Blockchain with Two Selfish Miners," in 2024 IEEE International Conference on Blockchain and Cryptocurrency (ICBC 2024), Dublin, Ireland, May 27-31, 2024. | ||||||||||
| [C02] | S.W. Wang, "A Game Theory Based Rational Mining Strategy in Blockchains With Multiple Rational Miners," in International Conference on Computing, Networking and Communications (ICNC 2024), Big Island, Hawaii, USA, Feburary 19-22. | ||||||||||
| [C01] | S.W. Wang, "Selfish Mining Attacks in Sharded Blockchains," in International Conference on Computing, Networking and Communications (ICNC 2024), Big Island, Hawaii, USA, Feburary 19-22. |
| [S01] | Y.S. Hung, S.W. Wang, S.S. Tzeng, and L.C. Wang, "Gamma Is Not a Constant: Network-Aware Characterization of Selfish Mining in PoW Blockchains," under review by IEEE Network, (Last update: 2026-07-05 Awaiting Recommendation ) |
| [R01] | S.W. Wang and L.C. Wang, "Design Principles for Stochastic Lightweight Blockchains," preparing for IEEE Magazines. |