Stake reputation points on who wins. No real money. The outcome is committed before you pick, so it provably can't react to your bet.
This is SHA-256 of a hidden seed. The winner is derived from that seed, so it was fixed before you saw it. After the round you'll see the seed and can verify it yourself.
Pick a side above, then stake. Picks are blind: you never see anyone else's until the round locks.
You can't predict a round you're debating in (self-exclusion). This demo is spectator-side only.