Is there prior art for modeling a data profile (ie. a collection of summary statistics) in DataHub? I see the Assertion entity comes pretty close, but I'd like to merely represent a max/min/stat without representing a specific criterion to be met

You would want to look at dataset "stats" tab instead, generated by profiling

Have you looked at "datasetProfile" aspect of Dataset ?

Thanks Mayuri, that's exactly what I was looking for!