Jan Lindquist has been involved since 2018 in development of next generation consent and certification based on distributed ledger (blockchain) with full transparency and accountability towards the individual. Participant of NGI eSSIF-lab sub-grantee project developing an automated data agreement framework over distributed ledger together with iGrant.io and PrivacyAnt. Active in ISO standardization and co-editor of ISO/IEC 27560, and chair of Privacy and Risk Task Force in Trust over IP (ToIP) investigating the privacy requirements and controls when using distributed ledger for sharing of personal data (example, Covid vaccination passport information).