num_sources split by public sources verses private sources (human confidence level)
Split num_sources split into public_num_sources and private_num_sources.
Why? Resume data, for example, from public sources is frequently the most current, but also can include bot generated data. A profile with private sources increases confidence of a real/human profile, but can be out of date.
A score that shows the difference can help folks determine what profiles are bot generated/edited. This does not mean a public profile is bad, but private sourced profiles can be anchor profiles in an entity resolution strategy.