# Prove a strategy, get a certificate

Take a challenge on its own demo account. It's free, and you can try again any time.

## How the rules are checked

**Every trade, and every minute.** The server prices each order from BloFin and checks equity against both loss limits on every action and once a minute, using each minute's high and low. Nothing the browser sends can change a price or a balance.

**A broken limit ends it at once.** Positions close, orders cancel, and the attempt records why and when, with the equity and the limit it crossed.

**Passing.** Close all positions at or above the target with the minimum trading days done. The certificate is issued on the spot, with the stats and the balance line.

Every attempt, fill and certificate stays on record. Nothing is wiped when an attempt ends.

Practice first with [demo trading](/demo-trade).