Bohdan Pavlov developed data collection support for Ethereum EntryPoint versions 0.7 and 0.8 within the duneanalytics/spellbook repository, focusing on analytics for the ERC-4337 standard. He designed and implemented new schemas and SQL models using dbt and YAML to track user operations and account deployments, establishing a foundation for comprehensive on-chain wallet activity analysis. His work addressed end-to-end data capture requirements and enabled the creation of dashboards for ERC-4337 activity, aligning technical solutions with business needs. The project demonstrated depth in blockchain analysis and data engineering, providing stakeholders with improved visibility and actionable insights into evolving smart contract interactions.