One round, one UTC window
Each round covers exactly 180 seconds. Entries remain open for the first 150 seconds and close during the final 30 seconds. The round identifier is derived from its start time, making the same window easy to locate later.
How the ETH180 3-minute prediction works
ETH180 uses completed ETH perpetual-contract candles from two independent exchanges. Every round follows a fixed UTC clock so players can compare the displayed calculation with public market data.
Open ETH180 →Two exchange closing prices
After the three-minute candle completes, ETH180 requests the matching ETH perpetual close from Binance and OKX. The second decimal digit from each closing price is extracted and the two digits are added.
A single result from 0 to 9
Only the last digit of the sum becomes the final result. For example, digits 7 and 3 produce 10, so the published result is 0. The interface displays both source digits and the complete calculation.
Delay and cancellation protection
Settlement waits briefly after candle close to reduce timing errors. Missing exchange data is retried. If complete source data cannot be obtained within the stated limit, the round is void and accepted stakes are returned.
BINANCE ETHUSDT
3562.47 → 7
7 + 3 = 10 → RESULT 0
OKX ETH-USDT-SWAP
3562.43 → 3