curated

A curated dataset is the contrary of a wiki.
In a wiki, everybody can add and edit data.
“Curated” means that every addition of modification needs to be checked by an expert before it is allowed into the dataset.

Wikis work fine when a “critical mass” of users has been reached: there are so many contributers that the “wisdom” of crowds applies: eventually all information will be reliable.
The “bookish” community, however, is too small and the risk of “garbage in, garbage out” is too high.