Servers can offer additional metadata on media or any other file type but none of the metadata is synced or stored on other servers. You could store some metadata in k:1063 events or NIP-94 tags though
Thanks. It looks like NIP-94 can be used with any upload server. @Vitor Pamplona I see that Amethyst supports NIP-94, does this mean that you are publishing k:1063 events for uploaded files? And do you query for the files metadata when parsing urls from notes?
We don't publish NIP-94 for all files, but we do for the Media tab in the app. So if the file has context, it just stays as an imeta tag with the hash to check for any modification from the server. But it if stands by itself, it gets a NIP-94 record via NIP-96 uploads to image servers.