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-v1a45a099b5be2535e1f5ad84bb38fdb2cfeb935b31533e551033978ad48dd33dcf4f7de192dafb0b07bcfdefa3b99e1c81f3403153c587beff97aadc87c487bbeCheck 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/681e77ec-6afa-409a-81f4-12e312b6b16e/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work