Artist Tag Merge: puus -> hanpen

I'm currently getting ready to upload a few pictures by an artist that goes by the pen name of Hanpen. We already have an artist on the site that goes by that name. I suspect that these artists may be the same person, but I can't find any overlapping pictures, so I can't be sure.

The new artist uses the name "PUU's homepage" for their site, so I was planning on using hanpen_(PUU) for the artist until it could be established that they were the same person.

Is this the correct way to disambiguate them? Is there a standard for dealing with multiple artists that have the same name? Since it's not in the artists help page, and I haven't ever had this issue before, I figured I would ask.

There was a discussion about pixiv names a little while ago, jxh2154 outlined some good principles there:

http://danbooru.donmai.us/forum/show/15226

They turned out to be the same artist.

As long as we're here, I'd like an artist tag merge for puus and hanpen.

Reason: They're the same artist, and hanpen is the artist's pen name, whereas puus is just a nickname used for that specific site.

Done. Edited the puus images to hanpen and deleted the puus artist entry so mass edit/find artist/source search will only bring up hanpen.

Thanks.