Visible boundary
Every fixture-driven experience displays TEST MODE, NON-AUTHORITATIVE, and NOT A PRODUCTION CREDENTIAL.
Determinism
Stable IDs, timestamps, hashes, event sequences, and expected policy results make every demonstration reproducible.
Negative fixtures
Invalid signature, conflicting evidence, suspended, superseded, revoked, expired, and not-found records are first-class test scenarios.
Production transition
Production access requires authorized issuer credentials, approved evidence integrations, live key management, and production policy controls.