Rights to maintain multiple verified pseudonymous accounts when services use personhood credentials

Identify specific use-cases in which individuals should have a right to maintain multiple verified pseudonymous accounts on services that use personhood credentials, rather than being limited by a service provider to a single verified account per person.

Background

PHCs enable services to enforce per-person limits and reduce scaled deception while preserving privacy through unlinkable pseudonymity. However, some applications may legitimately require individuals to hold more than one verified pseudonymous account. The authors flag the need to define when such multi-account rights are warranted to balance abuse prevention with users’ freedoms and diverse needs.