Verified Participants
How Terac verifies the people in its panel, and how you can require specific verified credentials for your study.
Every participant on Terac is a member of the panel who has completed onboarding. Verification is what lets you trust that an applicant is a real, distinct person, and optionally that they meet specific verified criteria before they can apply.
Attestations
An attestation is a verified badge on a participant's profile. It proves the participant has cleared a specific check. Attestations are earned once and reused across every opportunity, so participants are not re-verified for each study.
| Attestation | What it proves |
|---|---|
| Government ID | The participant verified a government-issued ID with a face match. This is the strongest identity signal and most opportunities require it. |
| Phone | The participant confirmed a phone number via a one-time SMS code. |
| Professional / social profile | The participant connected a real professional or social account (such as LinkedIn). |
Identity verification is handled by a dedicated third-party verification partner. Terac does not store images of participants' ID documents. For the participant-side flow, see Understanding Attestations.
Requiring Attestations for Your Study
When you create an opportunity, you can require that applicants hold specific attestations before the application unlocks for them.
Decide what you need
Require Government ID when identity certainty matters. Require a connected profile when professional authenticity matters. Avoid requiring more than your study genuinely needs, since each requirement narrows your eligible pool.
Set the requirement
Add the required attestations in your opportunity's setup alongside your filters. Participants who lack a required attestation cannot apply.
Recruitment respects it automatically
Only participants who hold every required attestation will see and be able to start your study. There is nothing further to check at review time.
Attestations are hard requirements applied before a participant can apply. They differ from screening questions, which qualify participants on judged answers during the application flow.
Preventing Duplicate Participation
Identity verification also underpins one-person-one-account integrity. To keep a single participant from entering the same study twice, rely on the platform's participation controls rather than trying to detect duplicates yourself after the fact. See Submissions for how participation is tracked.