Comment by Leace
7 years ago
> persistent global public identity
Certificate Transparency could be reused/abused to host it. If, for example, you issued a cert for name <key>.contact.example.com and the tooling would check CT logs this could be a very powerful directory of contacts. Using CT monitors you could see if/when someone tampers with your domain name contact keys.
Mozilla is planning something similar for signing software: https://wiki.mozilla.org/Security/Binary_Transparency
This is basically the keybase.io log system. Although they too rely on PGP currently
Minus the network of independent logs as from what I remember only keybase.io runs their own log system. Although they do timestamp their Merkle tree roots into Bitcoin.