The duo will focus on age verification through self-sovereign identity (SSI). The age assurance tool is designed to avoid disclosing sensitive personal information such as date of birth or national identification numbers by leveraging zero-knowledge proofs (ZKPs) and verifiable credentials (VCs). Privado ID plans to use the Sandbox to test the Billions framework. The identity verification protocol was launched in February to compete with World ID, Civic and others in the proof-of-personhood (PoP) space and allow users to prove their humanity.