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Weekly Summary – July 1, 2025

· 2 min read
William Wolff
Architect

This week, the Leios team achieved a significant milestone by successfully demonstrating protocol viability at 1,000 TPS. They also completed a comprehensive attack surface analysis and made substantial improvements to simulation and verification tools.

High-throughput demonstration

  • Successfully completed a 1,000 TPS experiment using basic 300-byte non-Plutus transactions
  • Demonstrated the viability of Leios protocol operation at extremely high throughput levels
  • Validated protocol performance under stress conditions significantly beyond current Cardano capacity
  • Documented detailed findings in the 1,000 TPS analysis.

Security analysis

  • Completed a comprehensive attack surface analysis for the second technical report
  • Defined terminology and taxonomy for potential Leios attack vectors
  • Categorized major attack types and their potential impacts on protocol security
  • Enhanced understanding of protocol vulnerabilities and mitigation strategies.

Rust simulation enhancements

  • Finished implementing support for input block (IB) equivocations in the simulation
  • Added capability to model and analyze protocol behavior under adversarial conditions
  • Enhanced simulation fidelity for security-related protocol testing.

Trace verifier performance optimization

  • Achieved 3x performance improvement by configuring minimum heap size to 1GB
  • Reduced garbage collection overhead from 75% to 2% of execution time
  • Enhanced profiling capabilities with detailed performance analysis tools
  • Improved verification efficiency for large-scale simulation trace analysis.

Protocol convergence for CIP

  • Intensified efforts to converge on a specific Leios variant for the Cardano Improvement Proposal (CIP)
  • Applied systematic evaluation methodology to rank protocol candidates from multiple angles
  • Evaluated efficiency metrics, including temporal efficiency versus storage optimization trade-offs
  • Assessed attack surface and security vectors across different protocol variants
  • Analyzed utility factors, including quality of service, developer friendliness, user experience, and downstream ecosystem impacts
  • Focused on eliminating candidates through evidence-based assessment of valuable protocol characteristics.