FlipPad

How it works

Call the sun or the moon and flip. A right call puts you on the first rung at 1.98×. From there, every further right call doubles the multiplier. Cash out whenever you like, or keep flipping for up to 20 in a row. One wrong call and the round's stake is lost.

Try the demo with 1,000 local chips, or sign in with your wallet (a text signature, never a transaction) and claim your daily chips.

Pick a stake and a side, then flip. All 20 possible flips of the round are fixed when it starts and stay on the server until they are flipped.

Double up or cash out. You can switch sides between flips. A signed-in round survives a page reload. Keys: S sun, M moon, Space flip, C cash out.

The ladder

Fairness mapping and RTP

Each round uses one nonce of your seed pair. The bytes are HMAC_SHA256(serverSeed, clientSeed:nonce), then clientSeed:nonce:1, :2, read 4 bytes per float: b0/2^8 + b1/2^16 + b2/2^24 + b3/2^32.
Flip n of the round (n = 1 … 20) uses float n − 1: below 0.5 the coin lands sun (heads), otherwise moon (tails). Your call does not change where the coin lands.
After n right calls in a row, the multiplier is 0.99 × 2^n, and the payout is floor(stake × 99 × 2^n / 100), worked out in whole numbers. The 20th right call cashes out by itself. The same code runs on the server and on this page.

99.00%RTP for every cash-out point, from 1 to 20 flips (house edge 1%). Exact before rounding down to a whole chip.

0.99 × 2ⁿ × ½ⁿmultiplier × chance of n right calls = 0.99, for every n.

1,038,090×top of the ladder: 20 right calls in a row (1 in 1,048,576).

Why not a flat 1.98× on every step? Compounding 1.98× would take 1% again on each flip (RTP 0.99ⁿ, about 82% after 20 flips). Here only the first rung carries the 1% edge and each later rung exactly doubles, so going for a longer streak costs you nothing extra on average. Holder win bonuses (+2/+5/+10% of profit) come on top for holders.

Holder perks

Sign in with your wallet to keep chips, claim daily chips and appear on the leaderboard. Holding the project's coin unlocks bigger daily chips, a small bonus on wins and the holders' table.

Daily chips reset at 00:00 UTC. Claiming on consecutive days adds a streak bonus (+10% per day, up to +50%). The holder tier is read from your wallet's token balance on Solana at sign-in and every 10 minutes. Perks are bonus play only: chips have no cash value.

Provably fair

Every result is decided on the server from seeds you can check. Before you play you see the SHA-256 hash of the server seed. Each play uses HMAC-SHA256(serverSeed, clientSeed:nonce), and the game's mapping below turns those bytes into the result. When you rotate, the old server seed is revealed, so you can re-run every past result yourself.

Your seeds

Verify a result

Paste a revealed server seed, the client seed and the nonce. The result is recomputed in your browser.

Leaderboard

Net chips won from play (payouts minus stakes; holder bonus not counted, so every tier competes equally) by signed-in wallets. Real recorded plays only. Demo chips never count. The week runs Monday to Sunday, UTC.

#	Wallet	Tier	Net chips	Plays	Wagered

Responsible play

There is nothing to buy here, and nothing you win here can be cashed out.
Take breaks. Results are random, and the house edge stated on this page applies to every play.
If gambling ever stops being fun for you or someone you know, free confidential help is available, for example from BeGambleAware.org (UK) or 1-800-GAMBLER (US).