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-v166278bf141a15f77452fbd00932f6257181b6fea287228ea111c83d625069c703649983aac420af6917b9465b0b6d68c5f0bfccd76a10f10905395a36858724cCheck 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/6fdd188a-905d-4bb2-a2ae-64793fe1379c/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work