One of the most important problems facing the crypto and the broader financial world is the proliferation of fake identities and claims, and the resulting difficulty of separating reputable players from the ones relying on fraud and impersonation. The Proof of Data Token (PDT) is a token powering a data platform which enables decentralised data validation and rewards for those who provide this service. Its is designed based on the understanding of identity and reputation are predictors of future behaviour.