Wibson is a blockchain-based, decentralized data marketplace that provides the infrastructure for individuals to securely and anonymously sell private information that is validated for accuracy. Wibson is built up on a set of core principles: transparency, anonymity, fairness, censorship resistant, and the individual’s ultimate control over the use of their personal information. The Wibson data marketplace includes three types of participants: Data Sellers, Data Buyers, and Notaries. The interaction of these three roles is governed by smart contracts within the Wibson protocol.