Raffle…
When this raffle was created, Tessera locked a secret seed and published only its fingerprint (sha256). After the winners are public the seed is revealed. If the seed matches the fingerprint and re-running the draw gives the same winners, nobody changed the result.
tessera-cr-v121e1332afad22875566e5ff0c58b6f3be2b1ec8048a8f5650f72f32e0e94213647271ebc22169ef2844e4253975b397f63ffc153788311a028ae94fa98110ec7Check the seed in your browser: we hash the revealed seed with SHA-256 and compare it with the fingerprint published before the draw.
The open-source checker re-computes the seed fingerprint, the entry pool and the winner order from the public proof. It needs only Python 3.
git clone https://github.com/Hugg1337/raffle-platform cd raffle-platform python3 backend/scripts/verify_draw.py https://api.tesserapp.org/raffles/95500a89-28e2-4744-9239-a5bbea7ba3f8/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work