Blockchain Research
Layer 2 Scaling Solutions Research
Research on Optimistic and ZK Rollups
Ethereum Optimism zkSync StarkNet Scroll
Overview
Comprehensive research on Ethereum Layer 2 scaling solutions, focusing on the architectural differences, performance characteristics, and security trade-offs between Optimistic Rollups and ZK Rollups.
Research Areas
Optimistic Rollup Analysis
- Studied fraud proof mechanisms in Optimism (Cannon) and Arbitrum (BOLD)
- Analyzed 7-day challenge window implications for cross-layer UX
- Evaluated sequencer decentralization roadmaps and their impact on censorship resistance
- Benchmarked transaction throughput and finality times across OP Stack chains
ZK Rollup Protocol Research
- Investigated validity proof systems: zk-SNARKs (zkSync Era) vs zk-STARKs (StarkNet)
- Analyzed prover cost and proof generation latency trade-offs
- Studied zkEVM compatibility levels (Type 1–4) and their developer experience implications
- Evaluated recursive proof aggregation for scalability
Comparative Analysis
| Metric | Optimistic Rollups | ZK Rollups |
|---|---|---|
| Finality | ~7 days (challenge period) | Minutes (proof verification) |
| Cost | Lower (no proof generation) | Higher (prover computation) |
| EVM Compatibility | Native | Varies (Type 1–4) |
| Data Availability | Calldata / EIP-4844 blobs | Calldata / DA layers |
| Maturity | Production-ready | Rapidly maturing |
Cross-Layer Bridge Security
- Researched canonical bridge designs and their trust assumptions
- Analyzed historical bridge exploits and derived security best practices
- Evaluated third-party bridge protocols (Across, Stargate) for fast withdrawals
Technologies
- L2 Networks: Optimism, Arbitrum, zkSync Era, StarkNet, Scroll, Linea
- Tools: Foundry, Hardhat, L2 SDKs
- Data Analysis: Dune Analytics, L2Beat data
Impact
Research findings contributed to informed decision-making on L2 deployment strategies, helping projects select the optimal rollup architecture for their use case.