KoboToolbox released several patches around July–September 2021 (e.g., version 2.021.24 ), which prompted many users to download media exports via zip files.
The reference "9222021" most likely refers to the date . Based on academic records and publication data from that specific date, the primary paper associated with a "zip" download or supplementary dataset is: Download 9222021 zip
Unable to download zipped media files - Kobo On Your Own Server "Impact of COVID-19 lockdown on suicide attempts," published
Rare variant MX1 alleles increase human susceptibility to zoonotic H7N9 influenza. Other Notable Papers from Sept/Oct 2021 with Zip Data
"Impact of COVID-19 lockdown on suicide attempts," published in Wiener Klinische Wochenschrift , Volume 133, pages 915–922, 2021.
This paper was published in Science (Vol 373, Issue 6557) and is widely cited for its comprehensive supplementary data, which is often downloaded as a zip file for replication.
The associated "Download ZIP" files typically include large genomic datasets, raw variant counts, and replication code. Other Notable Papers from Sept/Oct 2021 with Zip Data