site: weekly update

Author: will-break-it

site/news/2025-04-07-weekly-progress-summary.md

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+---
+title: Weekly Summary - 2025-04-07
+authors:
+- will
+tags: [progress, update, weekly]
+---
+
+This week, the team continued their efforts in refining the protocol and its simulation capabilities. The team made significant progress in addressing various topics.
+
+# Workshop summaries
+
+Unfortunately, there are no workshop summaries for this week. If another week is provided, I can assist further.
+
+## Simulation progress
+
+- **Haskell simulation**
+  - Started specification of a new relay protocol for IB header diffusion without body, documented in `simulation/docs/network-spec`.
+  - Removed redundancies and harmonized naming in `--shared-log-format`, with a new base schema both simulations share in `data/simulation/trace.shared.d.ts`.
+  - Added support for extra events required by conformance testing, including `SlotEvent` and `NoBlockEvent` in the schema.
+
+## Ongoing investigations
+
+- Investigating the effects of dishonest nodes that diffuse unbounded amounts of old IBs on IB delivery reliability and protocol performance under such conditions.
+- Working on quantifying settlement times and their impact on protocol performance.
+- Exploring integration possibilities with Ouroboros Peras, mainly focusing on potentially reusing their voting mechanism to reduce resource consumption.
+
+## Additional resources
+
+- [GitHub discussions](https://github.com/input-output-hk/ouroboros-leios/discussions/243) – EB ledger states and 'history rewriting' effects.