On-Chain Settlement, Explained: How an Up/Down Bet Actually Pays Out

The lifecycle of a bet

Quote: when you tap UP or DOWN, the engine signs an EIP-712 quote for your wallet with the round start (a 5-second mark about 30s out), the market σ and caps. It is valid for 8 seconds. Place: your wallet sends the quote to the game contract, which verifies the signature, the timing window (20–45s lead) and σ against the market’s on-chain floor, then locks your stake from your vault balance.

Boundaries: at the round start and end, the oracle posts the price — the lower median of the 1-second qualified-mid samples from 20 seconds before that second to 15 seconds after it (at least 18 of the 35 must be qualified), posted about 17 seconds after the boundary. Check: an independent guardian with its own copy of the price feed has 5 seconds to void a wrong price (a voided price refunds its bets). Settle: anyone can resolve the bet once that window has passed, about 25 seconds after the round ends; the contract computes the multiplier and credits your balance — stake plus profit, less the 2% fee on the profit — in the same transaction.

Payouts, the house LP, and tickets

A win always returns your stake immediately; the profit is paid from house LP cash. If the LP can’t cover all of it, the remainder becomes a first-in-first-out ticket, repaid by later losses before anything else. When several wins land on the same boundary and the LP is short, the wins resolved first are paid in cash and later ones get tickets — resolution is permissionless, and the engine resolves in bet order.

A loss repays the ticket queue first; when nobody is queued, 2% of it is the fee and the rest fills the LP — and either way it mints CLASH to the loser. Fees split 50% to CLASH stakers and 50% to the treasury.

Missing prices and the safety valves

If a boundary price is never posted, the bet can’t settle honestly, so it becomes refundable: 30 seconds after the boundary, anyone can refund it, returning exactly the stake. A guardian can pause new bets and deposits, but withdrawals, settlement, refunds, ticket claims and staking exits are never pausable.

What you can verify yourself

Every piece of the pipeline lives on Robinhood Chain in the open.

• Your vault balance and locked stake
• The posted start and end prices for your round
• The settlement transaction and the multiplier it applied
• LP cash, the ticket queue head and your ticket’s position
• CLASH minted to you and the current emission rate