Open Audit Demo — Scratch Fairness + LeaderGFL Audit Seal
This page shows a UX-only scratch experience (no wagering) and how the LeaderGFL audit seal proves certification & continuous verification on operator sites.
Online Scratch Card (Demo)
Buy a ticket, scratch the yellow area and find 3 matching symbols. Reveal ≥ 65% to validate the result.
Probabilities and prizes are tuned for demo only. Use mouse or touch to scratch.
LeaderGFL audit seal — what it verifies
Live proof that an operator is certified and under continuous audit. The badge performs checks client-side and links to a public certificate.
- Domain match: the loaded page domain must match the certificate (
data-site). - Signature: the operator’s payload is signed (Ed25519) and verified by
seal.js. - Public endpoint: availability and freshness of
/.well-known/leadergfl.json. - Build integrity: hash of current build/artifacts (
data-build-hash). - Status: OK / ATTENTION / REVOKED with link to the certificate page.
The demo here stubs cryptography/endpoint calls for illustration. In production the script verifies real data.
Embed guide
Include before </body> on the operator’s site:
<script async src="https://leadergfl.org/seal.js"
data-site="example.com"
data-operator-id="op_123"
data-signature="BASE64_SIGNATURE"
data-build-hash="SHA256_OF_BUILD"></script>seal.js renders the badge, verifies certificate data and links to the public certificate.
How our fairness audit works (short)
RNG & fairness
NIST/Dieharder batteries, seed/entropy inspection, non-determinism checks and replay analysis for statistical signatures.
RTP & payouts
Per-title audits (slots/bingo/scratch), observed vs theoretical RTP, prize floors/caps and house-edge governance.
Continuous monitoring (AI)
Anomaly detection, distribution drift, suspicious house-win spikes and correlations with features (campaigns, A/B, time-of-day, user clusters).
Open transparency
Public certificate, revocation list and aggregated open-data endpoints for community oversight.
Talk to the audit team
Operators: request technical certification and seal integration. Communities & regulators: access our public data and reports.