A Feb. 3 paper authored by Nikolai Durov, a Telegram co-founder, lays out the details of Telegram Open Network’s consensus mechanism, named Catchain. The proposed solution is a Byzantine Fault Tolerant (BFT) Proof of Stake (PoS) algorithm, similar to that used by NEO or Cosmos.
BFT algorithms are attempted solutions to solve the Byzantine Generals problem, where actors of a particular network need to maintain its functionality even if some nodes are unreliable or malicious.
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