this post was submitted on 02 Jun 2024
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You can't have content addressing because it's mutable. On the other hand, UUIDs are made for that. There's even multiple types of UUIDs made for distributed computing with namespaces and such.
Bluesky does strict content addressing with hashes plus post ID (unique per repository, this allows edits). So you can choose which version to refer to. If you need to archive or mirror stuff you can use the hash, and threads can have both methods so you can see which version of a comment somebody replied to, etc.