alt Hacker NewsFor others learning about this, the attack this project addresses is someone (maybe the web server) waits until everyone else reveals their committed bits then they alone know the outcome and if it is unfavorable they don't reveal and possibly repeat the game until they get the result they want.
Spot on. By using Drand, we move from Optional Reveal to Deterministic Resolution — the result exists publicly the moment the round closes.
It turns the server from a "Judge" into a "Timestamped Vault" that can't hold the outcome hostage if it's unfavourable, giving the player a winning ticket they can verify independently.