Participant control · Study directory-core-v1
Withdraw an anonymous session.
What this doesExcludes the matched session
The reporting workflow removes a session and its task results when it sees a later withdrawal event for the same random code.
Read the evidence rulesUse the code, not your identity
No account lookup. No personal profile.
The runner shows the random code during and after the study, and includes it in a copied or downloaded local record. Because the runner does not collect identity, a request without that code cannot be matched safely.
Withdrawal changes analysis, not historical infrastructure logs.
The event tells the validation report to exclude the matching sequence. It does not retroactively erase ordinary hosting request logs. Exported study-event data is retained through the active round and scheduled for deletion within 180 days after the aggregate report.