Boomerang leverages Bulletproof zero-knowledge proofs as its fundamental mechanism, ensuring privacy while enabling verifiable reward generation.

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Brave Research has developed the Boomerang protocol, a decentralized and privacy-preserving incentive protocol, as an alternative to the centralized Privacy Pass protocol used in Brave Rewards. Boomerang leverages Bulletproof zero-knowledge proofs and Black Box Accumulators to ensure privacy while enabling verifiable reward generation.

Boomerang: A new privacy-preserving protocol from Brave Research to decentralize Brave Rewards