Provably FairTermsSupport — Total Bets

JACKPOT

Winner takes all…

—Jackpot Value
—Your Wager
—Your Chance
--:--Time Remaining
Claimable: connect wallet
Round #— Payouts are settled in USDG — Players
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Winner takes the pot minus the 5% fee.pot —
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How it works

Sixty seconds. Then the chain decides.

01Bet

Send USDG or ETH into the pot. The first bet starts the 60-second clock; anyone can join until it ends.

02Draw

With at least 2 players, the contract records a future block. Its blockhash becomes the winning ticket.

03Win

The ticket lands inside one player's bet range. Winner takes the pot minus the 5% fee, credited instantly.

04Verify

Recompute the winner yourself from the public blockhash and the round's bets. Every settled round stays listed below.

Recent rounds

Settled jackpots

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RoundAssetPotWinnerPrizeWin chance
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COINFLIP

The classic 50/50 game mode.

Bet Amount ~$25 DEMO
◈
ALL GAMES0 ◈ Payouts are settled in USDG
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Unjoined flips can be cancelled any time for a full refund. Claimable: connect wallet
Settled flips

Recent coinflips

FlipAssetStakeWinnerWinning side
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Provably fair

Don't trust the wheel. Recompute it.

Every draw is decided by the hash of a block that does not exist yet when betting closes. Nobody — not the players, not this website — can know or change that hash in advance.

1 · Draw block

When a round's timer ends (or a flip is matched), the contract stores drawBlock = block.number + 2. Betting is closed from that moment.

2 · Blockhash ticket

After that block is mined, anyone can settle: ticket = blockhash(drawBlock) mod totalPot. Tickets are cumulative bet ranges, so chance is exactly proportional to each bet.

3 · Coinflip side

For coinflip, winning side = blockhash(drawBlock) mod 2. The creator's chosen side is stored on-chain before the joiner arrives.

The safety valves

· A round with fewer than 2 distinct players is cancelled and every bet is refundable in full.
· Blockhashes expire after 256 blocks. If nobody settles in time, the round or flip is cancelled and all stakes are refundable — funds can never be stranded by an unsettled draw.
· The 5% fee is taken only from settled pots. Refunds and cancellations are always whole.
· All payouts are pull-based credits. Winners claim to their own wallet; a bad receiver can never block a draw for everyone else.

Verify a round yourself

Read the round's bets and its draw block from the jackpot contract, fetch that block's hash from any Robinhood Chain explorer or RPC, take it modulo the total pot, and walk the cumulative bet ranges. The player whose range contains the ticket is the winner — the same computation the contract runs. Contract addresses appear in the footer once deployed.

Leaderboard

The pot remembers everyone.

Totals indexed from contract events. Nothing here is typed in by hand.

Total bets—
Wagered · USDG—
Wagered · ETH—

#WinnerAssetBiggest prizeRound
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