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HotStuff is a consensus algorithm used in Libra blockchain. A consensus algorithm is a critical part in distributed systems to decide what is the "right truth".

Here is a good analysis by Near Protocol author, Alex Skidanov:

https://twitter.com/AlexSkidanov/status/1141040292767789056

Also looks like one of the paper authors now works for the Ava blockchain (Avalanve consensus) from Cornell University:

https://avalabs.org/




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