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Why "kbin"? (kbin.social)

submitted 1 year ago by Potatomache@kbin.social to c/kbinMeta@kbin.social

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Hi there! So I'm two weeks in to kbin and I think I have a layman's understanding of the fediverse, but I'm still not the most technical person, so I thought I'd just post my questions here.

So I know "fediverse" stands for federated universe, so does "kbin" also stand for something? I tried checking the FAQ but the about page just tells me it's a link aggregator, and google links me to a Japanese manufacturing site or those birth name meaning/ancestry sites. (can anyone tell me if lemmy also stands for something or is this just a word the developers came up with?)

Regarding defederation, does it affect previous posts? If there's a thread with comments by multiple people under different instances, does defederating break the chain?

In fact who "owns" a thread? Like, in which instance is it stored? If someone posts on kbin, and people from lemmy and beehaw comment on it, does kbin "keep" all of those stored away or do they stay in their respective instances?

And am I correct in thinking that instances who defederate essentially block off an instance, but that instance can still see their posts, but not interact? ie. Instance A defederates from B, so they can't see/interact with B, but B can still see A but not interact with them? Or is it a mutual blocking? Ergo they both can't see nor interact. I know beehaw defederated with lemmy recently, so...?

The whole concept of defederating is just so interesting to me. I know I have to read more about it but those were mostly my main questions.

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[–] LambentMote@lemmy.nz 2 points 1 year ago (1 children)

There's no retroactive syncing. So a regenerated instance would start seeing any new content from the moment federation is switched back on. It's the same if you're the first user to subscribe to a community on another instance (from your instance). Until that moment your instance doesn't know the community exists but one a user subscribes your instance starts copying new content from that community and other users from your instance will start seeing that content in 'all'.

[–] Potatomache@kbin.social 3 points 1 year ago (1 children)

Ohhhh, I see. So it's only by the users subscribing to other communities that the instance is populated with content from other instances?

[–] Arotrios@kbin.social 2 points 1 year ago* (last edited 1 year ago) (1 children)

Your questions sent me down the rabbit hole...

The answer is yes, it works that way, but it's not the only way. The protocol that the Fediverse uses is ActivityPub, and:

In ActivityPub, two servers are federated with each other when there is a relationship between one or more actors on each. A common relationship is following: an actor on one server follows an actor on another server. From there, a whole set of other activities are opened up, like when the followed actor posts a Note or Video, the follower’s account receives a notification (in the form of a Create activity).

Some data are tracked on both sides of the relationship. For example, if @chris follows @georgie, that relationship is tracked both as a record on example1.org (georgie is in chris’s following collection) and on example2.net (chris is in georgie’s followers collection).

So, if you subscribe to a magazine / community on another instance, follow a person on another instance, or comment on a post on another instance, you're creating a data record that connects the two instances. When a server defederates from an instance, they prevent it from creating their half of data record on their server via a blacklist.

Sauce

[–] chris@fedia.io 1 points 1 year ago (1 children)

I assume you didn't specifically mention me with the fedia.io domain... yet here I am. So that appears to be a bug as Kbin notified me.

[–] Arotrios@kbin.social 1 points 1 year ago

Lol - nope - looks like it picked up on the @chris in the link I copied/pasted - which actually goes to https://kbin.social/u/@chris@example1.org . Kinda odd that it reparsed it as being from fedia.io and notified you.