Design principle DP1: Utilize blockchain only for public data
Use blockchain in SSI processes only for public data: organizations should repeatedly request and verify attributes through bilateral communication channels and read from (rather than write to) the ledger, avoiding storage of personal data centrally and mitigating privacy and scalability challenges.
Source paper
This design principle is proposed by Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity (Vincent Schlatt, Johannes Sedlmeir, Simon Feulner, Nils Urbach, 2022).
Citations
[1] Vincent Schlatt, Johannes Sedlmeir, Simon Feulner, Nils Urbach. Designing a Framework for Digital KYC Processes Built on Blockchain-Based Self-Sovereign Identity. Information & Management 59 (2022) 103553. https://doi.org/10.1016/j.im.2021.103553 (opens in a new tab) [2] Source document: Designing a framework.pdf