Add a dataset
Propose a missing dataset or supporting resource. Include an official page, archive record, DOI, or primary publication.
Contribute without coding
Open the GitHub repository, choose Issues → New issue, then select the form that matches your goal. Each form explains the evidence required.
Propose a missing dataset or supporting resource. Include an official page, archive record, DOI, or primary publication.
Show the current value, proposed value, and a source that directly supports the correction.
Report a duplicate, withdrawn, replaced, or out-of-scope resource. Retirement preserves its provenance.
Evidence principles