# Transparency

DeSui Coin Flip code is open source and can be reviewed here:​<https://github.com/DeSuiLabs/DeSuiCoinFlip-Contract-V2>

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**On-Chain Randomness:**&#x200B;

Sui Blockchain can generate randomness on-chain, making it perfect for coin flip.

User randomness is generated through nobles randomBytes method.

All Sui Coin Flip transactions happen on-chain and can be inspected and challenged for fairness.

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