<some-sort-of-hash-looking-thing> is ZBase32(SHA1(localPart)) and the standard is described here: https://wiki.gnupg.org/WKD https://wiki.gnupg.org/WKD If one

<some-sort-of-hash-looking-thing> is ZBase32(SHA1(localPart)) and the standard is described here: https://wiki.gnupg.org/WKD https://wiki.gnupg.org/WKD If one controls a domain, has HTTPS set up and uses PGP this is the easiest and most secure way to host a key (`gpg --list-keys --with-wkd $KEY` shows the hash value). Enigmail, Mailpile, Mailvelope will automatically discover the key when composing an e-mail. ProtonMail is also working on integration of WKD with their web mail.