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-v18519243ba1cb270a8a60026a18c2c5b9579bedb5446e215cf8e638c7554675b563ca0fff4406019c10489f695f2a47bd231296dbc3d17c0981013db83703fad6Check 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/6b297203-c0cb-4c8d-90f3-ec8b6450a0df/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work