Thread by @InputOutputHK

Ouroboros is the consensus protocol for #Cardano, the first provably secure proof-of-stake protocol, and the first blockchain protocol based on peer-reviewed research.
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Combining unique technology and mathematically verified processes, Ouroboros guarantees and supports the security and sustainability of any blockchain implementing it.
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The result is a protocol with proven security guarantees, able to facilitate the propagation of global, permissionless networks with minimal energy requirements.
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In this thread, we look at the different ‘flavors’ of Ouroboros and how it continues to evolve over time.
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🤔But first, why is it called Ouroboros and how is it different from other consensus protocols out there?
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Ouroboros comes in different versions. It all began with Ouroboros Classic 🌿deployed on Cardano in 2017. This laid the foundations.
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Ouroboros BFT came next. Deployed on #Cardano in May 2020, it helped prepare Cardano’s network for Shelley’s release and, with that, its decentralization. BFT served as a transition point from Classic to Praos.

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Ouroboros Praos was deployed on Cardano in 2020 introducing decentralized block production, stake pools support, incentives 🍬 and enhanced security properties 🛡️

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The next evolutionary step in our journey is the deployment of Ouroboros Genesis. Development is currently in progress for #Cardano deployment in 2022.

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Ouroboros Crypsinous equips Genesis with privacy-preserving properties🔐 Crypsinous isn’t currently planned to be implemented on Cardano, but it can be used by other chains for increased privacy settings.

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⌛The research in the Chronos paper demonstrates how you can dramatically boost the resilience of critical telecommunications, transport & other IT infrastructures that require the synchronization of local time to a unified network clock that has no single point of failure
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Finally, Ouroboros Leios puts forth the concept of input endorsers. It implements a number of related accompanying innovations to optimize the throughput of the consensus protocol.

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Here’s a full picture view of all flavors of Ouroboros essentialcardano.io/article/the-di…

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What is coming next for Ouroboros?

IOG Chief Scientist of IOG @sol3gga talks about Leios and input endorsers in the latest video - Advances in Ouroboros: Scaling for Future Growth.

Check it here: bit.ly/3zw3q66

#Cardano $ADA
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