Provably-fair · pay-per-use NockApp · demo

Forfeit Limbo

Provably-fair crash multiplier — 2.00× target, 1% edge disclosed in the curve.

Outcome construction (public)

u = rejection-sampled H(serverSeed ‖ clientSeed ‖ nonce ‖ draw) mod 2²⁴ → multiplier = max(1.00, 0.99·2²⁴/(u+1)); player wins iff ≥ 2.00×

Forfeit Limbo — round #0

demo · no real NOCK

1House commits

The house locks a secret serverSeed behind its hash — the curve cannot be bent after your commitment.

2Player commits

Target is fixed at 2.00× — win probability 49.5%, the 1% edge lives in the disclosed curve, nowhere else.

Launch & recompute

Complete both commitments, then reveal — the multiplier is max(1.00, 0.99·2²⁴/(u+1)) with u a rejection-sampled H(serverSeed ‖ clientSeed ‖ nonce ‖ draw) mod 2²⁴, recomputed live in your browser.

Earned trust badge

Signed Ed25519 issuance receipt over the lab report snapshot e20ee592bdf03a70. Freshness: stale.

Verify badge

Launch evidence

Readiness verified · score 97. Lab report → case → readiness report → badge.

Open case

Settlement residual (honest)

Fairness and forensics are fully trustless. Settlement is bonded-cooperative + timeout-forfeit (HTLC-grade), not contract-grade forced payout — Nockchain consensus cannot gate a payout on the game outcome. Disclosed in docs/FAIRNESS-DOSSIER.md.

This is the fairness and forensics showcase: the commit-reveal flow and the verifier run entirely in your browser and no real NOCK changes hands. Real-NOCK play is gated behind a house wallet, fakenet end-to-end testing, and the disclosed settlement model.