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- Semantic Containers (OwnYourData) - https://www.ownyourdata.eu/en/semcon/
- Personal Data Stores [Data Vaults] (OwnYourData) - https://data-vault.eu
- Confidential Storage 0.1 (DIF) - https://identity.foundation/confidential-storage/
- Solid Pods (Solid/Inrupt) - https://solidproject.org/users/get-a-pod
- Verifiable Credentials Data Model 1.0 (W3C) - https://www.w3.org/TR/vc-data-model/
- OpenDSU (OpenDSU Project) - https://opendsu.com/?Specifications/rfc001.html