The GBIF API allows us to search for occurrences and filter on, for instance, institution code. However, to the best of my knowledge, one cannot specify a negative filter. In my case, I need to exclude occurrences coming from iNaturalist as we already process those data elsewhere.
It looks like there is a way of doing so with the “download” API by specifying a predicate in the payload of a POST request. Unfortunately, this does not seem possible with the “search” API. Is there a solution to this problem with the current version of the API?