It is proven! I am schroeder on Keybase: https://keybase.io/schroeder/sigchain#6fc90de77ca44a16f8fa3ac49ef56106f4855cca5c2bc32b7bedd1b8c697e1340f
"I appreciate SDF but it's a general-purpose server and the name doesn't make it obvious that it's about art." - Eugen Rochko