A.6 Privacy, Identity, and Eligibility

Proof of Personhood / Proof of Humanity (Pop/Poh) (Optional)

External systems that help establish uniqueness of a participant. In Lioth these are never mandatory; they may reduce friction or increase confidence where required.

Zero-Knowledge Credential (ZK Credential)

A privacy-preserving proof of an attribute (e.g., “Region: EU”, “Role: founder”) without revealing identity. Used for cohort-restricted campaigns.

ZK Issuer (Optional)

An entity able to attest to an attribute for ZK credentials (institution, platform, employer, or protocol-native issuer based on contribution history).