What is real hereCredentials are SD-JWT VCs signed with Ed25519. Presentations carry a key-binding JWT bound to this specific request's nonce and audience. The verifier genuinely checks the issuer signature, the disclosure digests, holder binding, audience and nonce.
What is simulatedIssuance (credentials are seeded rather than obtained over OpenID4VCI), the trust list (issuer keys are fixed rather than resolved from a Trust Service List), and holder key storage (a real wallet keeps the device key in a secure element).
Request lifetimePresentation requests are valid for 15 minutes. An expired request can never be approved.