The real exam
Lock your rules. The chain draws the days.
Your rules are hashed on Robinhood Chain first. Two blocks later the chain's blockhash picks 3 of the last 20 trading days, and we replay your rules on the Chainlink prices of those days. Return ≥ +1%, drawdown ≤ 4%, at least 3 trades, no day below −3% = pass.
Your rules
Schema
Commit with cast instead
Exam
Send us the rules
The chain has your hash. Paste the JSON that hashes to so we can grade it.
What happens
1 Committed — keccak256 of your canonical rules goes on-chain. 2 Drawn — the chain draws 3 sessions from the blockhash two blocks later. 3 Graded — we replay them, and post the score on-chain. Re-run the grading yourself with vettorix-grade.mjs.
Practice is free. The real exam and a funded account need 500,000 tokens in the payee wallet once the token is live — checked by the desk contract when it funds.