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-v1e1df1d06193b0792197c34cd3d303ee5a32e889d1a947ffdcdc119e665db3f5873814d5e40ac21aff6424d89251536ec8533bc0322c35b1332bd2cb446d8bab0Check 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/fdb27c52-438c-4751-b03c-20edb60f059f/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work