Play the scenario in the arena (free sponsored runs or your key). Unlimited attempts; best score counts.
Score — the arena's standard /40 debrief, with an attested submission block (transcript SHA-256 baked in).
Submit — one PR onto the season leaderboard. CI validates shape, bounds, and that the name matches the PR author. Every replay is public; the Season runs on honor and receipts.
Champions get the podium frozen into the Hall permanently and first pick of the next season's theme.
