Who can see what is derived, not declared: audiences as algebra over secret scopes.
The algebra, interactive.
How an audience is built from secret scopes, and what each member can open.
Security/audience-algebra.test.ts checks the nine laws in npm test (test:security). It imports source modules and node:crypto, so it does not run in the browser.
README example 8: the audience seed does not depend on member order. Run live on the Core guarantees page.