Raffles

A raffle escrows a prize (ERC-20 or ERC-721) up front and sets a share count priced at 15% over the prize’s value — the only fee in the raffle system. The raffle settles the instant the last share sells: Chainlink VRF picks the winner, and the result is verifiable on-chain, not decided by the operator.

If a raffle’s book doesn’t fill, every purchased share refunds automatically once it expires. A keeper service also polls for raffles that need a fallback draw or settlement step, so a raffle isn’t stuck waiting on a manual transaction.