Open items & decisions
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Verifier-nonce binding. The holder-binding proof must bind the verifier's nonce/challenge; today the VP is bound to a server-random nonce. This is a real backend change (VpCommonService.createVp / setBbsBlsProof), not a config toggle.
Sync result path. x401 needs the verdict inline; confirm the RS reads the submit response (not a separate async callback).
Price source. Subscription/usage amounts stated in the 402 challenges vs. fixed config.
Subscription lifetime. Permanent, time-boxed, or renewable?
Finality vs latency. Confirm the acceptable settlement finality depth before issuance.
VP format scope. POC targets ldp_vp / jwt_vp; SD-JWT / mdoc are not yet verifiable, either scope them out or fund the crypto.
Asset choice. JMYR vs native ZETRIX for the POC.
Auto-disclosure policy. Programmatic DCQL matching for low-sensitivity claims vs. human approval for KYC-grade disclosure.
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