A public randomness beacon is a service that broadcasts a sequence of unpredictable and verifiable random numbers to all interested parties. This randomness is generated in a transparent manner, allowing anyone to confirm its integrity and ensure it has not been tampered with. It serves as a shared, unbiasable source of random values.
Context
Public randomness beacons are crucial infrastructure for decentralized applications and blockchain protocols requiring unbiased random inputs. They find utility in secure lotteries, fair selection processes, and cryptographic key generation. The development of robust and widely accessible public randomness beacons remains an active area of research and implementation within the crypto ecosystem.
Cryptographers proved a Verifiable Delay Function's fixed sequential time can be bypassed, challenging its use for secure, fair randomness in Proof-of-Stake.
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