Jonathan Hult enhanced data accuracy for the Granola-Team/mina-indexer repository by updating staking ledger information in ledgers.json. He implemented a targeted data management change, adding two new entries to reflect the latest staking state and improve the integrity of staking analytics, reconciliation, and reporting. Working primarily with JSON, Jonathan focused on minimizing operational risk and ensuring alignment across Mina-indexer’s analytics pipeline. The update was delivered as an ops-focused feature with a clear, well-documented commit, laying groundwork for future analytics and reporting enhancements. His work demonstrated careful attention to data consistency and operational readiness, though the scope was intentionally narrow.