It is proven! I am epl692 on Keybase: https://keybase.io/epl692/sigchain#d839ce32cbf4a5078e633abd85f44034f897dedda8bb3e84f0e8221d26683f480f
"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