UNISON

UNISON helps developers trace what supports an AI claim and whether a delegated action is currently authorized. It makes evidence, uncertainty, and permission transitions visible through two runnable workflows. The new browser traceability playground starts a synthetic claim as UNKNOWN, attaches hashed evidence, and runs explicit evidence-window, governance, and state-transition checks. Its 12-stage trace labels implemented mechanisms, advisory output, and illustrative concepts. Implemented blocking checks determine whether the demonstration receipt remains UNKNOWN or reaches locally_supported. Editing a recorded stage output makes hash-chain verification report BROKEN. Guardian tests the execution boundary. Run an authorized action, queue another, revoke its ancestor grant, and replay the queued action. Guardian rechecks current authority and denies stale execution while its synthetic action counter stays at one. A surviving independent route produces FAIL; incomplete inventory produces UNKNOWN. The HATS lab extends this with a Macro/Meso/Micro/Nano hierarchy, inherited scopes, depth and spawning limits, and descendant checks after ancestor revocation. Guardian also includes a Muse Wonder adapter for structured advisory analysis of registered authority paths. Hackathon contributions include Guardian, HATS, the new browser integration and ports, an evidence-record JSON Schema, a claims register, and unified provenance documentation. Eight source repositories are consolidated with their origins recorded. Existing StateBench and imported implementations are credited as earlier source material. The demonstrations use synthetic actions and local checks. Hash consistency, local support, scientific truth, and independent reproduction remain distinct.