@datawench Well, the content says that I am me. Only I (or someone with my private key) can write to https://keybase.pub/todb , so if you believe that https://keybase.io/todb is who he says he is, then the assertion that he is also firstname.lastname@example.org should hold true.
I suppose someone could post that same link, but it wouldn't come from email@example.com. It would come from somewhere else.
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