Belisarius is a bot that detects vandalism on Stack Overflow.
Hippo is a Higgs web dashboard for Belisarius. It is the place where all the posts the bot catches are sent. Most of its features are publicly available, however you need to sign in to send feedback.
Higgs is developed by Rob and hosted by Das_Geek. The GitHub repository is here.
Here’s how a report looks like:
Answer to:
is added by the code and it means that the post is an answer.