Cardano Partnership Aims to Monetize Personal Data with Reef Data eG
The Cardano Foundation announced a partnership with Reef Data eG to monetize personal data. The partnership is backed by Hamburger Volksbank, ARIC, VALIO, and Disruptive Elements.
Reef plans to pool members' personal data, license it to businesses, and pay royalties back to contributors. Cardano's Reeve system sits at the accounting layer, recording payment flows and royalty distributions, while keeping the underlying data elsewhere.
The European Commission Joint Research Centre identifies six models of data intermediary: personal-information management systems, data cooperatives, data trusts, data unions, data marketplaces, and data-sharing pools. The EU Data Governance Act gives this market a regulatory backbone, requiring recognized providers to register with national authorities and appear in a public list.
Reef's workflow shows that members request their own information from companies under the EU Data Act. The Data Act centers on data generated by connected products such as cars, smart devices, and industrial machinery. GDPR Article 15 gives people a right to access data companies hold on them, and Article 20 covers portability in a machine-readable format.
The partnership's architecture answers a question the European Data Protection Board raised about blockchain technologies. The guidance warns that immutable ledgers sit awkwardly against GDPR rights such as erasure and correction, and recommends keeping personal data off-chain whenever possible.