Validates an Identity Vault record (idv_rec) against provided first/last name and email for a specific Submit session. A one-time OAuth-issued submit token is required and must match the identity.
idv_rec may be provided as a combined token in the form IDENTITY:SUBMIT. In that case, the portion after the colon is treated as the one-time submit_id.idv_rec and submit_id as separate query parameters.submit_id results in a 410 Gone response.Identity Vault record identifier. May include a trailing :SUBMIT_TOKEN (e.g., id_abc123:sub_456) in which case the token will be extracted and used as the submit_id.
One-time submit token, issued via the OAuth callback. Provide this if it is not embedded in idv_rec. Missing, mismatched, or unauthorized tokens return 403; reuse returns 410 Gone.
Verification result. verified will be true only if first name, last name, and email all match the verified record. When an identity wasn't found upstream, the endpoint still returns 200 with verified=false and identity_response=null.