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-v104b1b438096d65c185707170c801019ab4e86737e1c0a355401bd76f0eff1f4b02937dad089ac32b81f5fc5e0be96baf8b8d3e776ad3d046030840fb41920c41Check 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/b0795a48-f427-4791-ab19-de148cb95a57/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work