this post was submitted on 29 Jun 2025
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speaking of that, there was a userscript that is able to find the same post on other instances, I should look it up, in case it can also work with posts of offline instances
it should, as long as the post was synchronized in the past...
https://lemmy.zip/c/meta@lemm.ee
seekms your username was different on lemm.ee:
https://lemmy.zip/u/WhyJiffie@lemm.ee
~~hmm that's interesting because I did not have a lemm.ee account! :D~~ just 3 tons of links to it.
edit: I misunderstood it, no I didn't have an account there
also in the meantime I did some research. it turns out I was probably remembering the Lemmy Universal Link Switcher userscript: https://greasyfork.org/en/scripts/469273-lemmy-universal-link-switcher
it can look up posts by their activitypub id, which is the de-facto ID of a post, that is same across all instances. this ID is the url of the content on the original instance. so, the following could be an activitypub id, if the post was actually created on lemm.ee: https://lemm.ee/post/64477597
to look up a post by this, the userscript uses the
/api/v3/resolve_object
API endpoint.it searches your local instance, and if you are authenticated it also queries the host in the url, lemm.ee in this example. but of course this remote query does not work anymore.
now here comes the twist. I know I always read lemmy through sh.itjust.works, so whatever I saved should be known by this server. and the link that I save, often does not point to the origin instance, because clients work that way.
so it seems 2 lemm.ee links that I tried to look up were not actually posted there, because bmy server does not know a post that has this ap id, I just somehow got a link that points to the lemm.ee version of that post or comment........
Fortunately the messaging app I misuse for link collection always loads the title and image of the webpage, so by some manual work I should be able to find the actual links to each of them.
Edit to add: Lemmy seems to URL-encode '
:
' and '/
' sometimes :/