[web-annotation] Add `mbox_sha1sum` for the same reason(s) FOAF did

BigBlueHat has just created a new issue for 
https://github.com/w3c/web-annotation:

== Add `mbox_sha1sum` for the same reason(s) FOAF did ==
If `creator` info is publicly available, then the publisher MAY want 
to obfuscate the user's identifier. FOAF provides for this in the form
 of `foaf:mbox_sha1sum`:
http://xmlns.com/foaf/spec/#term_mbox_sha1sum

We just don't currently map it into our vocabulary, so to use it, we 
need to prefix it...like I've done here:
https://bigbluehat.cloudant.com/anno-mail/_design/anno-mail/_show/to-web-annotation/d2f075cd452ecacc143808a976e08271

I'd propose we name "ours" `email_sha1sum` to make it consistent with 
our relabeling of `mbox` to `email`.

Thoughts?

Please view or discuss this issue at 
https://github.com/w3c/web-annotation/issues/115 using your GitHub 
account

Received on Wednesday, 25 November 2015 00:50:11 UTC