Things you should reference in a newspost or on the forum Pieter-Jan:
- there's a link on the bottom of hwbot.org "Add Your Benchmark". This takes you to a wizard to register a new benchmark.
- The submission API is documented in a pdf, current version is 1.1: http://static.hwbot.org/api/Generic_API_1.1.pdf
(although I've already linked it multiple times in the wizard, so maybe not necessary)