Skip to main content
Solana VRF covers the most common questions about verifiable randomness before you ship on-chain apps.

​
Why not use block hashes for randomness?

Block hashes can be predicted or manipulated by miners and validators, making them unsuitable for fair gameplay. MagicBlock’s VRF proves the randomness was generated independently of block production.

​
How fast is the randomness callback?

The VRF operates within the ephemeral rollup execution window, so results are typically available within a single transaction round, without external polling.

​
Can I audit the randomness proofs?

Yes. Each request includes a proof that anyone can verify on-chain using the same cryptography as the VRF signer. This transparency ensures players can confirm fairness.

​
Who runs the oracles?

MagicBlock Solana VRF uses a permissioned set of oracles managed through on-chain queues. You can delegate your rollup to a specific queue so trusted operators fulfill your requests.