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-v1d23cf545139d19efddd69286ef0e464026e80ad172e81d876439fc26a275d3f648873499ffc408407eee56c0ce6fcc1d795389d0617dd9e6e495928658bd99aaCheck 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/282222ba-7a8b-41e4-b271-b3a966b2fadc/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work