Every completed CollabScience collaboration ends with a CRediT Contribution Certificate: a timestamped document stating each contributor's roles, attested by all parties, and anchored to a public OSF deposit. It is designed to be checked, not just believed.
Outcomes of classical Vamana in chronic urticaria — a retrospective cohort study
Illustrative specimen — names, identifiers, and DOI are placeholders.
A certificate is only issued after the manuscript (preprint or preregistration) is deposited on OSF and the deposit is verified to name the same people. The claim is checkable against an independent, timestamped public record.
CRediT roles aren't self-claimed. Every contributor confirms the final role statement, and every listed author attests the four ICMJE authorship criteria, before the certificate is generated.
The certificate carries a SHA-256 hash of the signed collaboration agreement. Alter the agreement after the fact and the hash no longer matches — the discrepancy is visible to anyone who checks.
Certificates are stored on OSF with persistent identifiers, not just on this website. If CollabScience vanished tomorrow, every certificate would remain exactly where it is — public, citable, resolvable.
If you are a journal editor, a supervisor, or a hiring committee handed one of these certificates, verification takes about two minutes: