The highly regarded Orbital Apes community has built a decentralized raffle platform leveraging DIA's verifiable and distributed randomness oracle on Evmos.
The Rumble platform supports the creation and running of decentralized raffles with NFTs, ERC-20 tokens and Evmos tokens. The creator can set the raffles price, requirements and rules, and the platform will do the rest. Users are able to mint ERC-721 tickets for each raffle, and the winners will automatically receive their prices.
Operating the Rumble platform in a trustless manner requires an on-chain and decentralised source of random number generation on the Evmos Network. The RNG oracle is needed to pick a winning ID from the raffle tickets, and a second time to get the number of rounds until the next raffle will begin.
Funded through an Evmos DAO-driven community proposal, DIA deployed its random number generation oracle on the Evmos network. The oracle is available in the following smart contract and provides an unpredictable and verifiable randomness signature every 30 seconds. The signatures are created through a decentralised randomness beacon formed by a network of nodes (League of Entropy) to generate truly unbiased random numbers.
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