Coin Flip
Put up a stake, or match someone else’s and call heads or tails. The coin comes from a secret the maker locked in before you called, so nobody can rig it. Winner takes both stakes.
Make a flip
Your browser keeps the secret that decides the coin. Come back to reveal after someone takes your flip (within an hour, or they win).
Open flips · match one and call it
No open flips. Make the first one.
Why it’s fair
Robinhood Chain has no safe on-chain randomness, so there is no house and no oracle. The maker locks in the hash of a secret with their stake. You match it and make your call. Then the maker reveals the secret, and the secret decides the coin. They can’t change it after seeing your call. If they don’t reveal within an hour, you win by default. fobo.bar keeps 3% of the pot.