Live demo

Try verifiable randomness

Submit one request, publish one transaction, and receive a replayable proof.

TapeOut is not deployed on testnet, so the public demo uses MockCPU; mainnet/fork uses the real Keccak IP Core.
TapeRNG

Publish a draw

A random example is prefilled. Edit it (or publish as-is), then publish once.

Auto-filled random example
Prizes9 winners
Wallet: —
TapeRNG

Recent draws

SDK docs ↗

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Demo only: no assets are escrowed or settled on-chain. Contracts and the BLS library are unaudited. No trustless claim.

SDK docs