Blackhorn desk tool · Polymarket structural arbitrage, read-only · 🧭 the Arbitrage Hub ↗ · 🅠 the Cockpit ↗ · ⚔ the Execution Panel ↗ · ← the Bridge
Honest ceiling: this is a scout, not a trader. It reads Polymarket's public order summaries and flags negRisk events (mutually exclusive, exhaustive outcomes — exactly one pays $1) where buying every YES costs less than $1, or selling every YES fetches more than $1. Quotes are top-of-book and move; depth, gas, and resolution risk are yours to judge. Executing needs your wallet key signed into the CLOB — keys never pass through the Sanctuary, so the click is always yours, on Polymarket itself. Opportunities logged locally only; nothing here leaves this box but the scan itself.