You can see that crossref has started adding this info to their API.
For both the published article. see the has-preprintfield here:
https://api.crossref.org/works/10.1016/j.neuron.2019.05.022
as well as for the preprint original preprint. see the is-preprint-of field here:
https://api.crossref.org/works/10.1101/335703
This data should be made available in the JSON.
You can see that crossref has started adding this info to their API.
For both the published article. see the
has-preprintfield here:https://api.crossref.org/works/10.1016/j.neuron.2019.05.022
as well as for the preprint original preprint. see the
is-preprint-offield here:https://api.crossref.org/works/10.1101/335703
This data should be made available in the JSON.