Pierre worked on the LedgerHQ/clear-signing-erc7730-registry repository, delivering integration of the CoreDAO Earn contract to enable system-wide earnings features. He developed and committed the smart contract in Solidity, ensuring its JSON artifact, metadata, and ABI were properly uploaded and aligned for reproducible deployments. By updating relevant contract paths and maintaining traceability through linked issues, Pierre facilitated future extensibility and auditability within the system. His work focused on smart contract development and artifact management, leveraging both Solidity and JSON to support seamless integration. Over the month, Pierre contributed one feature, demonstrating depth in contract integration and deployment readiness.