Comment by danabramov
9 hours ago
I have a few questions:
- How do you rotate keys? In AT, the user updates the identity document. That doesn't break their old identity or links.
- When you have a link, how do you find its content? In AT, the URL has identity, which resolves to hosting, which you can ask for stuff.
- When aggregating, how do you find all records an application can understand? E.g. how would Bluesky keep track of "Bluesky posts". Does it validate every record just in case? Is there some convention or grouping?
Btw, you might enjoy https://nostr.com/, it seems closer to what you're describing!
1. It's an important problem, but I think this just isn't done at the Record layer. Nor can you? You'd probably want to do that on the person-key->username service (which would have some log-in and way to tie two keys to one username)
2. In a sense that's also not something you think about at the Record level either. It'd be at a different layer of the stack. I'll be honest, I haven't wrapped my head entirely around `did:plc`, but I don't see why you couldn't have essentially the same behavior, but instead of having these unique DID IDs, you'd just use public keys here. pub-key -> DID magic stuff.. and then the rest you can do the same as AT. Or more simply, the server that finds the hashed content uses attached meta-data (like the author) to narrow the search
Maybe there is a good reason the identity `did:plc` layer needs to be baked in to the Record, but I didn't catch it from the post. I'd be curious to here why you feel it needs to be there?
3. I'm not 100% sure I understand the challenge here. If you have a soup of records, you can filter your records based on the type. You can validate them as they arrive. You send your records to the Bluesky server and they validates them as they arrive.
2. The point of the PLC is to avoid tying identity to keys, specifically for the point that if you lose your keys, you lose your identity. In reality, no body wants that as part of the system
3. The soup means you need to index everything. There is no Bluesky server to send things to, only your PDS. Your DID is how I know what PDS to talk to to get your records
We can have both a directory and use content addressable storage and give people the option of using their own keypairs. They are not mutually exclusive. Bluesky chooses to have a central directory and index.