During November 2024, Michalis Christou enhanced the consensus block validation process in the vechain/thor repository by expanding test coverage to critical edge cases. Focusing on backend development and blockchain reliability, he introduced new Go-based tests targeting invalid state roots, invalid receipts roots, and zero gas transactions. This work established a more robust verification baseline, directly reducing the risk of regressions in production block processing. By improving the maintainability and depth of the consensus package’s test suite, Michalis enabled faster iteration on consensus features and contributed to the overall stability and correctness of block verification within the project’s core infrastructure.