Francisco Javier Nieto focused on enhancing data analysis reliability within the SBNSoftware/sbndcode repository, addressing a critical issue in the PTBAna module. He identified and resolved a bug related to incorrect indexing of the _ptb_llt_timestamp array, which previously led to inaccurate assignment of Long-Term Timestamps in data analysis workflows. By correcting this logic using C++ and applying his skills in software development and data analysis, Francisco ensured that LLT data integrity was preserved, reducing the risk of downstream reporting errors. His targeted bug fix improved the traceability and reliability of SBNDcode’s analytics without introducing new features during the period.