  Research has shown that most resources shared in articles (e.g., URLs to code
or data) are not kept up to date and mostly disappear from the web after some
years (Zeng et al., 2019). Little is known about the factors that differentiate
and predict the longevity of these resources. This article explores a range of
explanatory features related to the publication venue, authors, references, and
where the resource is shared. We analyze an extensive repository of
publications and, through web archival services, reconstruct how they looked at
different time points. We discover that the most important factors are related
to where and how the resource is shared, and surprisingly little is explained
by the author's reputation or prestige of the journal. By examining the places
where long-lasting resources are shared, we suggest that it is critical to
disseminate and create standards with modern technologies. Finally, we discuss
implications for reproducibility and recognizing scientific datasets as
first-class citizens.
