List of resources for understanding proof-of-work and proof-of-stake consensus mechanism and their trade-offs.
- Article
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By Vitalik Buterin
- Nov 6, 2020
- Article
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By Nick Szabo
- Aug 28, 2008
- Article
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By Nick Szabo
- Dec 27, 2008
- Article
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By Vitalik Buterin
- Dec 29, 2016
- Paper
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By Andrew Poelstra
- Mar 22, 2015
- Video
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By Andreas Antonopoulos
- Oct 10, 2017

What is the difference between proof-of-work (PoW), proof-of-stake (PoS), and delegated proof-of-stake (DPoS)?
0:00 What is the difference between proof-of-work (PoW), proof-of-stake (PoS), and delegated proof-of-stake (DPoS)?
0:31 Proof-of-work
0:55 Proof-of-stake
2:09 Problems with proof-of-stake
www.youtube.com
8 min
- Video
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By Andreas Antonopoulos
- Aug 21, 2019

If multiple governments collaborated, could they launch a 51% attack on Bitcoin? If all it takes to attack a proof-of-work (PoW) network is enough electricity, wouldn't you want the game theory of delegated proof-of-stake (DPoS), or a hybrid system? Could chainlocks prevent 51% attacks?
These quest
www.youtube.com
19 min
This is a very insightful post on this topic.