Design objective Objective 4: Trust
A key goal of banks is to make eKYC documents reusable in registrations of a customer at different banks. Thus, acceptance of KYC documents attested by other banks is required. The documents must be tamper-proof, so a further requirement is that validity checks of these documents are feasible. A complete trust chain also requires authenticity checks, meaning that the identity of the customer and their connection with the documents must have a high level of assurance even if the customer is not present at a branch.
Source paper
This design objective 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).