Questions tagged [proof-of-stake]

proof-of-stake is a method by which a blockchain network aims to achieve distributed consensus by asking users to prove ownership of a certain amount of an asset.

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27
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2answers
20k views

What exactly is the Nothing-At-Stake problem?

What exactly is the Nothing-At-Stake problem in Proof-of-Stake consensus networks? While I understand what the nothing at stake problem means, I do not really understand the security implications. ...
2
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2answers
143 views

Casper Friendly Finality Gadget - Greater degrees of transaction/settlement finality over existing PoW?

With Casper Friendly Finality Gadget, can one expect greater degrees of transaction/settlement finality over existing PoW?
2
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1answer
76 views

Where do penalties for being offline go? (for validators)

Where do penalties for being offline go? (for validators) In POS when validator is being offline he loses part of its stake (depends on correlation with other validators being offline aka partial ...
1
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1answer
177 views

Implication of hacking into an ethereum node on proof of stake

It is my understanding that in proof of stake, the validator puts up a stake that gets slashed if they don't respond to requests truthfully. In the scenario that someone hacks into your node, wouldn't ...
9
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2answers
361 views

Will Eth 2.0 be implemented in geth (go-ethereum) or will it run on a new client?

Geth is the official implementation of Ethereum based on the coding language Go. Currently, there are 8 teams that are building Eth 2.0 https://www.coindesk.com/next-gen-buidlers-the-8-teams-working-...
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1answer
203 views

Hidding IP address behind sentry nodes

I would like to know how to set up an Ethereum node behind sentries (proxy nodes). I know there are several ways to approach this issue as mentioned here. https://medium.com/@kidinamoto/tech-choices-...
1
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1answer
54 views

How to transition to PoS?

I'm trying to find the details of the coming PoW to PoS transition, but all I could find were generic explanations why it was so good. Can somebody point me to a resource or just explain in a few ...
4
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1answer
306 views

Overview of Ethereum Milestones?

In 2017 there was the Metropolis hardfork. In 2018 there will be Constantinople. Is Constantinople a full PoS fork or will it be hybrid like 1 block of 200 will be PoS mined? Will there be a Casper ...
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2answers
70 views

How are block proposers selected in Ethereum 2.0?

i'm doing some research about Ethereum 2.0 for university. I think i understand the way it works, but i have a perplexity about the proposer selection in a slot, especially after reading the codes ...
6
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1answer
1k views

Casper: will you need to buy the right to be a validator or will it be free?

According to this document: https://docs.google.com/document/d/1Xf_iHGI51Lp6nVHPZo0SdUw60-NA6YJUvk2s-eYaxLE citation 1: maxDeposit - the maximum deposit allowed to become a proof of stake ...
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1answer
31 views

Is Ethereum 2.0 (Sharding Ethereum) only PoS based? Or a combination of PoW + PoS?

Does Ethereum 2.0 (Sharded Ethereum) only use PoS (Proof-of-stake) for consensus mechanism ? Or Does it use a combination of PoW + PoS ?
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0answers
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Where is the stake amount stored in Proof-of-Stake?

So in the PoS consensus algorithm, the nodes can lock their coins and the node with the highest coins has the highest probability of getting the chance for validating coins. I have two questions: 1) ...
8
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2answers
632 views

How does betting on a block work in Casper?

Betting on a block is betting money that effectively says something like: "I believe that this block has at least a 60% chance of being true." Q1. Once a bet is made, is it possible to change the ...
2
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1answer
1k views

Proof of Stake - Let's get down to brass tacks and understand it

I have read six different articles now trying to understand this fully and completely and have been unable to get to that point. I get that you are giving the validator/forger chosen with the ...
3
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2answers
343 views

Will not a PoS implementation converge in a much less wealth equally distributed system?

With the current trends of prices in crypto and the long term vision supported by the community (HODL!), the implementation of Proof of Stake could eventually derive in big ETH stakeholders getting ...
0
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2answers
24 views

Could smart contract use a fork block?

If generated two forked block A and B. Can the smart contract in block A access to transaction in block B? I know that PoS is consensus algorithm working by check all stake in block. The verifier ...
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2answers
171 views

Is there a penalty for having a ETH 2.0 Staking node go down?

For some proof of stake blockchain systems, there is a penalty if the node goes down during staking. Will there be some sort of penalty if an ETH 2.0 staking node went down? And if there isn't how ...
2
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1answer
29 views

Is Casper FFG still going to be implemented?

What is the status of Casper FFG within the ETH 2.0 roadmap. Is the plan still that it will be implemented with Phase 0 or Phase 1? Or is the plan to adopt Casper CBC instead, and forgo implementing ...
3
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2answers
241 views

Does staking on ETH 2.0 require a full node and how much space would that take?

I read that ETH 2.0 staking with 32 ETH requires users running a full node on their server. But doesn't a full node take up 500+ GB of space? What are the proposed system requirements?
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2answers
499 views

What is the proposed ETH 2.0 staking reward and minimum / maximum stake one can put on a node?

There are 80+ million ethereum. A staking node requires only 32 eth to stake. If even just 25% of the 80 million started to stake, that would create 625,000 staking nodes. If the reward is 1 eth per ...
2
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1answer
34 views

What's the difference between a Slot and a Block?

I'm running a private beacon chain with the Lighthouse client with some local validators: Mar 23 10:35:08.281 INFO Block from local validator block_slot: 13009, block_root: 0x2bab…25a6, ...
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1answer
30 views

How to adjust “time slots” in Ethereum 2.0 (Sharding + PoS)?

In Ethereum 2.0 (Sharding and PoS), blocks are produced at a regular schedule, say once every t seconds. What does this time slot depend on? The number of validators in the network who deposited ...
0
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1answer
44 views

What Would Be The Reward For Smart Contract Miners In Ethereum POS?

I have seen this: What’s the block reward for smart contract miners? Which addresses it for the POW period of Ethereum, but what about POS? They just earn a sort of "interest" for their stake as ...
5
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1answer
78 views

Does Casper FFG in phase 0 take its checkpoints from the current ETH 1.0 POW chain?

Does Casper FFG in phase 0 take its checkpoints from the current ETH 1.0 POW chain? I'm reading some conflicting material on this. The Casper FFG paper describes taking a checkpoint at every 50 POW ...
5
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1answer
232 views

Deliberate Slashing: Don't slashing and leaking incentivize DDOS attacks on smaller nodes? Won't this centralize POS more than POW, even?

In Ethereum's proposed proof-of-stake algorithm (POS): A traditional node operator can't host a node themselves (e.g. on a home network), someone could just DDOS their node to bring them offline. ...
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1answer
65 views

Network propagation delay and forks in Proof of Stake?

I am learning the fundamental of Proof of Stake (PoS), i came accross a question which i could not find answer to. Assume we have three validators (aka miners in PoW), V1, V2 and V3. Each of the ...
3
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2answers
111 views

What should I prepare for the coming ETH 2.0 upgrade as a Dapps developer?

As announced, Ethereum is expected to be its upgraded version Eth2.0 probably from 2020. There will be several upgrades like PoW to PoS/Casper FFG eWasm integration sharding (Casper CBC) These ...
0
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2answers
28 views

Is proof of stake vulnerable?

If there is a large drop in the US dollar value of ETH over a substantial period, one can assume that people will be deterred from staking ETH because they could lose money (USD) on the stake. Is ...
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2answers
350 views

During the POW/POS transition, why would a POW miner choose to mine on the chain with the POS consensus algorithm?

As the title says, what incentive does a POW miner have to mine on the hybrid POS chain? They would, effectively, be removing their own economic incentive from the consensus mechanism. I understand ...
0
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2answers
40 views

Do ERC20-type tokens make a 51% attack more profitable?

A successful 51% attack (PoW or PoS) would allow the attacker to double spend any token, not just ether, so the greatest possible payoff is equal to the value of all ERC20-type tokens plus all ether. ...
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1answer
36 views

Nothing-At-Stacke: What is EV and why can I not vote on both branches with full stake?

Can somebody tell me what EV means and what the graphs represent? Does p=0.9 means that I look 0.9 of my stake for the one branch and 0.1 for the other? Where does this locking happens? Why can't I ...
130
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5answers
43k views

Why does Ethereum plan to move to Proof of Stake?

The initial version of Ethereum (Frontier) uses a Proof of Work based consensus algorithm, but I see that there are plans to implement a Proof of Stake based consensus algorithm called "Casper" in a ...
83
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6answers
161k views

What is the total supply of Ether?

In Bitcoin, the total supply is capped at 21 million BTC. Is the total supply of Ether capped? How much will be mined before the Proof of Stake (POS) transition, and how will POS affect the issuance ...
0
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1answer
39 views

After POS is implemented, what stops mining pools from being formed?

There won't be "mining pools" but stake pools but what if someone creates a system where participants stake everthing in one place in order to make the mkst money? Is this allowed and is this a ...
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1answer
85 views
4
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1answer
194 views

What is the algorithm to select random validators in PoS? [duplicate]

As I know, Ethereum Casper PoS implementation randomly selects 250 validators from the validator poll for an epoch. What is the random algorithm for this selection?
2
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0answers
64 views

How to make atomic swap between Ethereum and POS chain?

There's simple way to make atomic swap for smart-contact chain and any POW chain. For example for Ether <> BTC: Alice sends some Ether to the swap smart-contact which locks this money. While ...
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0answers
28 views

How is the block interval constrained in Ethereum 2.0

Sorry if i get any of the terminology wrong here, i'm no expert when it comes to PoS protocols. How does Ethereum 2.0 control for blocktime, typically we have the idea of a function that can be ...
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1answer
35 views

How are transactions ordered in POS?

With POW, the miners who finds the block chooses the order of transactions in that block. How will this work with POS?
3
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1answer
338 views

How does the network validate a block in PoS

In general PoS, the forgers stake their coins and then a validator chosen in a pseudorandom fashion gets the chance to validate a block. But how do the whole network validate it? In PoW, for example, ...
1
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1answer
151 views

Who can participate in Casper?

From what I understand, non-validators will feel benefits from the change to casper. However, is it only validators that can actually participate in Casper? Is it correct that if you have etehreum in ...
1
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1answer
169 views

Delegated POS (DPOS) vs Proof of Stake (POS): Specified Differences

Delegated POS (DPOS) vs Proof of Stake (POS) -- May I know what are the specified Differences?
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0answers
93 views

What is the point of switching to ProgPOW for ethereum, when POS is coming in the coming year(s)?

With the recent discussion of the new ProgPOW mining switch. What is the point of it when POS is coming in the coming year(s)? I understand it disables the ASIC miners, while benefiting the GPU miners....
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1answer
64 views

In proof of stake, is there a difference between being offline and deciding to leave entirely?

I'm struggling to understand the proof of stake concept. As I understand it, in order to participate in validation and its rewards, you must ante up some ether (I was told a minimum of 32). You are ...
0
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1answer
190 views

Staking Ethereum

Brand new investor to crypto but have been reading as much as I can on the space over the past couple months. I am looking for someone who could help me me a with a step by step guide on how to stake ...
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0answers
65 views

How does lower network bandwidth and lower latency create a bottleneck for POS Blockchain network?

My understanding is that any proof of stake blockchain would largely remove the processing power and energy consumption bottleneck from the whole system, but even after that the blockchain nodes ...
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2answers
92 views

What is meant by locking of ether in proof of stake?

In PoS, forgers stake their ether on a block. These ether are locked and can't be used. What does it mean by locking of ether and how does it work?
0
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1answer
311 views

Cloning geth and adding a POS consensus algorithm? [closed]

I am currently learning how to use geth, so far I was able to create a private POW and POA blockchain using one of its consensus types (Clique). I am wondering how feasible it would be to clone the ...
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0answers
36 views

Impact of POS and Shrading on tx costs?

How transaction fees will be affected after implementation of Casper protocol?
1
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1answer
96 views

Are Delegated PoS or “normal” PoS blockchains as secure as PoW blockchains? [closed]

I have heared in some videos regarding new blockchains and Delegated PoS that DPoS does not have same cryptographic security than PoW, apparently because: In PoW, if you are an attacker, as soon as ...

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