Jonathan updated staking ledger data for the Granola-Team/mina-indexer repository, focusing on enhancing data accuracy for staking analytics and reporting. He implemented a targeted change by adding two new entries to the ledgers.json file, ensuring the staking state reflected the latest operational information. This update improved data integrity and reduced the risk of drift in analytics and reconciliation processes. Jonathan’s work centered on data management using JSON, with an emphasis on operational reliability and minimal impact to existing workflows. The scope of the contribution was narrow but addressed a specific need, laying groundwork for future analytics and reporting enhancements.