I've built casino slot machines and gaming systems for 15 years. I mostly stayed away from compliance, but once I had to write the official algorithm description for a certification lab. I made it technically precise, handed it over — and realized nobody read or verified it. The lab ticked the boxes, took the money, issued a paper certificate. Two hours later a hotfix could ship to production and void the certified hash, and nobody would notice. The industry runs on dead paper, not real-time verification.
And it isn't only casinos: any draw, lottery, gacha banner, school-place allocation or event-ticket raffle has the same hole. There's a "✓ Provably Fair" badge, a server seed, a hash — and almost nobody ever checks it, often including the operator.
UVS (Uncloned Verification Standard) moves the proof of fairness off trusted third-party certificates and onto something anyone can recompute themselves.
The invariant: a tier derived from evidence, not claimed
The core of the standard is one function, deriveTier. It assigns a draw a trust tier from the evidence actually attached, not from a badge:
