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-v16ae9caaf581f014be21938dad631a07e0eee013941ff1b7eda515f7c9f688c9c7b37f1b58be89b05a3c98689668a8026037cdbef7912fa4845d7eda015976a9dCheck 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/a558ec2e-9cc7-4ae9-ba5e-8e37ac4f3476/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work