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-v19b26d5ebbada41f4d91f51de9a20457b03260178b50ab06a79c9226cbb94c68ea663687211124ca68618ae5e80cbe2031723998d1564a815830b68cb66723026Check 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/8008bcb3-e666-4d4d-994e-9620b831fa45/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work