Bitcoin Q&A: Proof-of-Work (PoW), Proof-of-Stake (PoS), Delegated Proof-of-Stake (DPoS)

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
2:59 Difference between proof-of-work and proof-of-stake
3:25 Once something is recorded on the blockchain you can't go back and change it
5:06 Delegated proof-of-stake
5:46 I think we're going to see combination systems
6:30 What can we say about the security of these systems?

This is part of a talk which took place on July 7th 2017 at a Bloktex event hosted by the Wisma BeeOn Group in Kuala Lumpur, Malaysia: https://antonopoulos.com/event/the-fu...

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Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin.

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