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I meant on a very low level - a central database can be manipulated to effectively rewrite history. If you have a web of signatures, similar to PGP, Keybase an
by jacobush 8y ago
I meant on a very low level - a central database can be manipulated to effectively rewrite history.
If you have a web of signatures, similar to PGP, Keybase and a few other systems, you can't do that.
The same goes for a blockchain.
What you put in there is susceptible to the oracle problem, but that is another level. Both these things need attention.
- schoen 8y ago> a central database can be manipulated to effectively rewrite history That's true, and that's an important issue. But I might still ask, for each application, is there someone who's trusted to introduce records into the system but not to update them later? (We can definitely envision applications where the answer might be "yes" -- often related to concerns about censorship -- but it doesn't seem like this is the case for every application.)