Proviso is a thesis-trading platform in development, designed for Robinhood Chain and Hyperliquid. Users describe a trade idea in plain English, then review its conditions, allocation and exits before activation. The planned system monitors those approved rules and either sends an alert or attempts execution from the user's account. Proof of Call records a commitment on Robinhood Chain before execution. Sealed entry rules are revealed when the call fires; stops and targets remain hidden from the public until the position closes. For copied calls, Fair Copy is designed to submit eligible followers' orders before the caller's linked account. Users retain their accounts and choose their own limits. Submission order does not guarantee better fills, and trading carries risk.