Linked Questions

16
votes
2answers
3k views

What is casper? [duplicate]

I see that Vitalik and Vlad are working on Casper. As far as I understand, casper is the new POS mining algorithm. Why is it better than bitcoin's POW? I understand it's environmentally friendly, ...
64
votes
5answers
50k views

What's the difference between proof of stake and proof of work?

The Ethereum frontier network currently uses a proof of work (PoW) consensus algorithm, while a future version of the network plans to utilise a proof of stake (PoS) algorithm instead. What's the ...
51
votes
4answers
27k views

What proof of work function does Ethereum use?

The Ethereum frontier network currently uses a proof of work (PoW) based consensus algorithm. But which specific PoW function does that algorithm use, and why was it chosen?
23
votes
3answers
84k views

What is the current DAG size? When do we expect to hit GPU limits?

I have two mining rigs running, one with 2GB GPUs and one with 8GB cards. Recently, the rig with the 2GB cards failed due to the inability to upload the DAG to the GPU. What's the current DAG size ...
34
votes
3answers
14k views

How does the Casper proof of stake algorithm work?

Ethereum plans to move to the Casper proof of stake algorithm in a future version of the network. What are the details of that algorithm, and how does it compare to previous Proof of Stake consensus ...
31
votes
3answers
36k views

How do miners profit post-PoS, if at all, how will new miners get their start, and who will execute the EVM byte code (and why)?

I've been following the release of Casper/PoS closely, and I'm curious about a few details. How will miners make money (even if GPUs are less valuable)? Are spare compute resources (say RAM, CPU) ...
9
votes
4answers
3k views

What are the scalability benefits of PoS vs PoW?

This accepted answer claims that one advantage of PoS vs PoW is that some scalability problems can be addressed more easily with PoS What are those scalability problems? What are the scalability ...
11
votes
3answers
1k views

What are the major risks of Ethereum moving to Proof of Stake?

There has been discussion about the motivations and benefits of moving to Proof of Stake. For a risk-benefit analysis of moving to Proof of Stake, what are the major risks?
6
votes
2answers
2k views

Why did Ethereum not start with Proof of Stake?

I had been reading up on Proof of Stake and the advantages and disadvantages. As if I am correctly informed, it is planned to change from PoW to PoS in the near future, using Casper. I had also been ...
8
votes
2answers
409 views

How can I compare two consensus protocols?

There are a large number of competing consensus protocols in the blockchain space today. How can I compare them to each other in an objective way?
4
votes
1answer
3k views

Who will run the network after proof of stake?

Currently miners act as 'servers' for the Ethereum network, by doing all the needed work for Dapps to run, calculating, saving data etc.. Am I correct? My question is this: who will run all of this ...
2
votes
0answers
3k views

Does Ethereum has halving or anything equivalent?

Bitcoin has a halving which will likely happen around June 2020. Is there anything similar for Ethereum? If not, why?
8
votes
1answer
442 views

Ethereum mining pool centralization

There are a number of well known undesirable effects of mining pool centralization, primarily: increased risk of collusion a small set of pools effectively gain veto power on the evolution of the ...
4
votes
2answers
458 views

What property makes Proof of Stake easier to apply in permissioned blockchains?

There are a number of efforts driving towards the transition from the current proof-of-work towards proof-of-stake (more info here). Meanwhile proof-of-stake is already in use in some permissioned ...
3
votes
1answer
1k views

What is delegated proof of stake and why is it not suitable for Ethereum?

Ethereum will switch to Proof Of Stake in some future hard fork called Serenity. For this putpose a new Proof Of Stake protocol called Casper is being developed.[1] However, there are quite a few ...

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