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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6
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1answer
667 views

Block header structure change under Proof of Stake?

The yellow paper describes the below block header structure: This includes difficulty, beneficiary, mixHash and nonce values. Presumably these will be redundant under Proof-of-Stake. How will the ...
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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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Three related hypothetical security flaws in Casper: does the protocol allow them?

Casper attempts to solve the problem of "catestrophic crashes", where validators with more than 1/3rd of the voting weight go offline and thereby stop any more blocks from being validated, by using an ...
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440 views

Proof of stake, mauve paper - glossary of terms

Just getting my head around some of the concepts in Vitalik Buterin's Mauve paper. There are a few terms for which I don't yet have a clear definitions. These include the terms below (shown with my ...
4
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1answer
481 views

Redundant PoS node setup

This is a question regarding to computer networks and high availability with remote nodes but it relates directly to Proof-of-stake so I think this would be the place to ask instead of superuser, ...
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150 views

Metropolis Constantinple Casper

In 2017 there was the Metropolis hardfork. In 2018 or so there will be Constaninople. Is Constaninople a full PoS fork or will it be hybrid like 1 block of 200 will be PoS mined? Will there be a ...
3
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2answers
333 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 ...
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0answers
369 views

What's the difference between Nakamoto consensus vs Proof-of-Authority vs BFT

Documentations all around the internet are filled with these terms to categorise consensus protocols. What is the difference between them. For example: many call parity's tendermint as a BFT type ...
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310 views

What is the category of the 2 consensus algorithms here presented?

From the Ethereum Wiki: In a private chain context, there are three consensus algorithms that make the most sense: Proof of authority - essentially, one client with one particular private key ...
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0answers
54 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
87 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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Is there a temporal reward in Casper, that the earlier you place bets, the more you are rewarded?

In Casper, the consensus-by-bet proof-of-stake system, is there a temporal reward, that the earlier you place bets, the more you are rewarded?
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40 views

How does Casper record votes efficiently?

I keep reading about Casper doling out rewards and punishments for voters based on how they're voting. If I am understanding this correctly, it seems that Casper punishes nodes that submit votes to ...
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2answers
129 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?
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140 views

Quorum failure - Failed to decode message from payload

We use in our project -JP Morgan Quorum (Ethereum based) bloackchain - with istanbul voting mode. We have 4 nodes (3 of them are validators - hard coded, nonchangable) And from time to time (...
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0answers
116 views

Who proposes blocks in Ethereum Casper the Friendly Ghost

I am trying to understand how CTFG is supposed to work. The available online blogs provide a fairly high-level overview. What I have understood so far is that validators will bet on the blocks as they ...
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243 views

Casper protocol: is it right?

I'm reading about Casper protocol and the hybrid solution that Ethereum is going to adopt in the first place. Can you tell me if I understand the mechanism well? The hybrid solution initially ...
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0answers
234 views

Does Proof-of-Stake mining also process contracts?

I've read that Proof-of-Stake (POS) mining 'secures the blockchain' but does it also process contracts and collect gas?
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142 views

In consensus-by-bet, are all bets registered on the chain?

From Vlad: Validators bet independently on blocks at every height (i.e. block number) by assigning it a probability and publishing it as a bet. Through iterative betting, the validators elect ...
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0answers
359 views

Why is there a limit to number of validators?

In Casper and consensus-by-bet, validators make bets, and converge on a block at each block height, etc. In the Casper PoCs so far, the number of validators at any given block has been limited to 250, ...
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455 views

Validators in POS

note: Simple, layman, language would be highly appreciated! Hello, So, what would a 'validator' (after switching from PoW to Pos on Ethereum) actually, do? Specifically? Would he be required to ...
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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?
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Does EIP 134 allow a variants on PoS where everything is at stake?

EIP 134 allows a transaction to specify which chain it is occur on. In its original inception, this would be accomplished by specifying a recent block of the desired chain and a number 0-255 that ...
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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 ...
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15 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 ...
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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
57 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 ...
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62 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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34 views

Impact of POS and Shrading on tx costs?

How transaction fees will be affected after implementation of Casper protocol?
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55 views

“consensus over state” vs. “consensus over events”?

Does someone know what is difference between "consensus over state" and "consensus over events" ? I found just title of a reference i.e. "Ian Grigg, blog post “The Message is the Medium,” 2017." ...
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47 views

how can validators validate blocks?

I have a question about how POS (ethereum casper) works. I am a little bit confused. So let's say User A decides to be a validator. So he has to have at least 1000Ether in his account to become a ...
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190 views

Will staking increase or decrease volatility?

I'm trying to wrap my head around the implications of locking up much of the supply of ether when proof of stake happens. It seems to me that doing so would decrease the circulating supply and ...
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145 views

How will casper maintain time between 2 blocks?

In current proof-of-work, there is an artificial time delay introduced because of difficulty. This allows the network to accept transactions that ultimately form the block. Vlad argues that once ...
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0answers
27 views

Proof of Stake how many blocks are proposed each round

So. I understand that the "nothing at stake" problem requires more than one chain being proposed. How can more than one chain be proposed? how many blocks are proposed each round? I thought that only ...
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1answer
165 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 ...
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0answers
482 views

How does reward mechanism works on Proof-of-Authority consensus?

By following this tutorial. I have created a private chain based on Proof-of-Authority. Please see my CustomGenesis.json file. I have started my chain: > geth --datadir /Users/ethereum/POA/...
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114 views

What will happen to the gas block limit after Casper?

Is there any reason to believe it'll go up or down significantly?
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98 views

Does every node execute contracts in Proof of Stake? If yes, why?

In Ethereum, for Proof of Work this sentence is true: "Every single operation that is executed inside the EVM is actually simultaneously executed by every node in the network. This is why gas exists" ...
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122 views

Why isn't Casper POS Dynasty set randomized?

This may be premature to ask this question as POS for ethereum is still undergoing a lot of design changes, but it seems like from all the stuff I've come across that the validator set (eg. dynasty) ...
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244 views

Will the proof of stake in ether require you to have the wallet open to continue to stake?

Will the proof of stake in ether require you to have the wallet open to continue to stake like stratis does?
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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-...
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2answers
245 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 ...
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1answer
26 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 ...
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29 views

Relationship between fault tolerance and network latency

I'm currently studying Ethereum's PoS and a sentence on the relationship between fault tolerance and network delays caught my attention in the Proof of Stake FAQ. Quoting Vitalik: In this model, ...
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89 views

Getting Started with Hosting a Beacon Node & Validator Client using Geth in a Cloud Provider

I am considering hosting a private Beacon Node & Validator Client with the 32 ETH requirement. I am able to build geth locally and feel I know enough to want to venture and offer my own node on ...
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1answer
52 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 ...
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76 views

Ethereum/Quorum Pluggable Consensus with Algorand Byzantine Agreement Protocol?

Can Quorum and Ethereum be possibly configured/modified to use Algorand Byzantine Agreement Protocol?
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482 views

can we implement proof of stake contracts or proof of stake based token in solidity on ethereum network?

I have written a contract in solidity that operates on the basis of proof of stake. I want to know is it possible to create a pos based token or contracts and deploy them on ether network. And are ...