A pathway for GDPR Data Management & Privacy for Ethereum

Public permissionless chains like Ethereum can reconcile immutability and decentralization with GDPR data-protection rules by pushing personal data to wallets and dApps, storing it off-chain, and splitting roles cryptographically. The European Blockchain Association argues this would confine controller duties to a small set of application-layer actors, while other network participants become processors or fall out of scope. It cites techniques such as Proto-Danksharding (EIP-4844), where blob data lives off-chain for about 18 days before pruning to KZG commitments, and PeerDAS, where nodes hold only short-lived, unintelligible fragments. The text states that this approach depends on widespread adoption of privacy-enhancing technologies.