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)?
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:
Immutability and Proof-of-Work: The Planetary Scale Digital Monument -
What happens to transaction fees when the block reward is zero? -
Decentralized power, leaderless governance -
The new experimental science of consensus algorithms -
Could a state-sponsored 51% attack work? -
What is the role of nodes? -
Solar energy and mining in space -
Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and well-respected figures in bitcoin.
Follow on Twitter: @aantonop
He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.
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Music: "Unbounded" by Orfan (
Outro Graphics: Phneep (
Outro Art: Rock Barcellos (
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Item Reviewed: Bitcoin Q&A: Proof-of-Work (PoW), Proof-of-Stake (PoS), Delegated Proof-of-Stake (DPoS) Rating: 5 Reviewed By: PRASHANT ENTERPRISES