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Fast VRF

Fast VRF enables verifiable random number generation for smart contracts with real-time delivery through RISE Chain's shred architecture.

Overview

Fast VRF provides randomness for smart contracts with millisecond-level response times through RISE Chain's shred architecture.

Key Features

Millisecond Response Times

VRF results arrive in 3-5ms, not seconds. No waiting for block confirmations.

Real-time Updates

WebSocket subscriptions deliver VRF results instantly via eth_subscribe.

Full EVM Compatibility

Standard Solidity interfaces work with existing tooling and frameworks.

Quick Example

// Request random number
function rollDice() external {
    uint256 requestId = coordinator.requestRandomNumbers(1, seed);
    emit DiceRollRequested(msg.sender, requestId);
}
 
// Receive result (called by VRF coordinator)
function rawFulfillRandomNumbers(
    uint256 requestId,
    uint256[] memory randomNumbers
) external {
    uint256 diceRoll = (randomNumbers[0] % 6) + 1;
    emit DiceRollCompleted(msg.sender, requestId, diceRoll);
}

Common Use Cases

  • Gaming: dice rolls, card shuffling, loot generation
  • NFT minting with random trait generation
  • DeFi lottery and reward distribution
  • DAO jury selection and voting mechanisms

VRF Coordinator

Address: 0x9d57aB4517ba97349551C876a01a7580B1338909
Network: RISE Testnet

Resources