Chainlink VRF
Chainlink VRF (Verifiable Random Function) is a provably fair and verifiable random number generator (RNG) that enables smart contracts to access random values without compromising security or usability. For each request, Chainlink VRF generates one or more random values and cryptographic proof of how those values were determined. The proof is published and verified on-chain before any consuming applications can use it. This process ensures that results cannot be tampered with or manipulated by any single entity including oracle operators, miners, users, or smart contract developers.
Method to request randomness
Subscription: Create a subscription account and fund its balance with LINK tokens. Users can then connect multiple consuming contracts to the subscription account. When the consuming contracts request randomness, the transaction costs are calculated after the randomness requests are fulfilled and the subscription balance is deducted accordingly. This method allows you to fund requests for multiple consumer contracts from a single subscription.
For more information about Chainlink VRF, please refer to:
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