Zubair Zia talks about blockchain security, how PoW works, majority attacks, PoS issues, and how Decred leverages the strengths of PoW and PoS to enhance security.
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It is in the nature of open source software to evolve with collaboration and fork under contention. The same is true for blockchains and cryptocurrencies.
This is a follow up to ?Apples to apples, Decred is 20x more expensive to attack than Bitcoin?. Upon further discussion with Decred project organizer Jake Yocom-Piatt, the claims made in the Proof of Activity paper did not accurately apply to Decred?s unique hybrid protocol.