Learn how Proof of Work validates blockchain transactions, ensuring secure mining and peer-to-peer processes with no trusted third party required. Discover the pros and cons of PoW.

At a four-day cryptography conference in Santa Barbara, an IOHK researcher presented a mathematical proof that a new blockchain protocol known as Ouroboros is secure.

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Proof-of-stake, however, solves a lot of the problems native to a PoW consensus algorithm. Proof-of-stake is similar to mining in that it requires users to validate transactions.