One of the upstream projects I maintain in #Debian is guile-gcrypt,
and I noticed there was a new upstream version in #Guix but I could not update my git repository, as the platform hosting it, notabug.org, seems to be going through some rough "404 page not found" times.
Because it is packaged in Guix, I knew there was a very good chance it was also archived on #SoftwareHeritage and sure enough, I was able to download and refresh my local git repository, and even verify the latest signed tag!