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-v11f8e205ae2f88d4ffb7dda5b79de481d55ea75949f897d1873a106bbc836f227cc33ce068a5ff645e1cf3468880ea72d881d8659253486536328d6f6cd8544d7Check 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/64bca86b-ae83-418b-aec2-c08dfa7a69d8/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work