A GameObject named _CurvyGlobal_ containing this script is automatically created upon first use. Currently it's purpose is to store Connections and pools, but that might get expanded in the future.
To completely hide the _CurvyGlobal_ object from the hierarchy, enable the Hide _CurvyGlobal_ option in the preferences
If you switch scenes and both scene contains a _CurvyGlobal_ GameObject, they will merge automatically.