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-v1243d0e254bc8304527a5c32e8d51a58dba0c1e3bf8ac142a45ce6068f2e278e90d1d5e14b9e1e75402fc5fa08f84ef804cfc27718df486bcb049bc9641a53ecbCheck 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/ba941952-8903-434d-a62b-67ba82b2ce73/draw-proof
Raw proof: draw-proof JSON · How provably fair draws work