https://api.openalex.org/works/doi:10.1021/acssynbio.1c00049
Authors. Wen, A., Havens, K. L., Bloch, S. E. and colleagues
Venue. ACS Synthetic Biology , OpenAlex record
How the Institute flags it
frontier 2 times established 1 time
This source carries more than one flag across the corpus. That is not an inconsistency to resolve: the same work can be established evidence for one claim and frontier evidence for another, and the flag belongs to the use rather than to the source.