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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Delegated Proof of Stake (DPOS) vs. Proo of Stake? [closed]

What is the main difference between Delegated Proof of Stake (DPOS) vs. Proof of Stake? Is there any significant advantage for security? (since PoS in general suffers security problems.) And which ...
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POS/Sharding - Incentive for submitting proof-of-dishonesty

While reading through the Nothing at Stake section of the Proof of Stake FAQs it is described how dishonest validators will be punished for voting on two chains. This requires a proof of misbehavior ...
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Is the requirement for signature of more than 2/3 of validators, weighted by deposit, a solution for the data availability problem?

The data availability problem is known to be one of the main problems in blockchain systems. So in case of a proof of stake scheme which requires a block to collect signatures of at least 2/3 of ...
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What are the challenges involved moving Ethereum from POW to POS?

I'm aware of the idea to roll out the POS protocol by using a hybrid model of POS/POW. What are the challenges of such a change? This hybrid model would make mixed adoption(for legacy users and new ...
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Scaling ethereum [closed]

I have been looking up scaling issues associated with Ethereum. I have not found any resources that give an easy to understand definition of the problem. I am aware that there are efforts like Raiden, ...
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If you have to stake your coins in PoS how can you make sure not to validate a fraudulent transaction

I have a number of questions involved here. What is a fraudulent transaction? Is there an example of this on the blockchain? Just to verify, in PoW the hashing algorithm is calculated to pass from ...
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Question about proof of stake [duplicate]

Can someone explain to me how proof of stake works in detail? And in particular, which is the difference (if it exists) between proof of stake in general and Casper protocol of Ethereum? Thank you ...
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What will a block look like post Casper?

Currently I think blocks look like [previous block hash + transactions + nonce], such that the hash of all that is less than the difficulty. After Casper what will it look like? I guess there is no ...
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How would Proof of Stake affect rigs running GPUs (480,580) [duplicate]

I noticed through a few articles about how proof of stake is a likely progression for the ETH project. I agree with the principles and the security benefits it gives, but how would it in real terms ...
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how does casper help with finality?

My question is very simple... I've watched some videos and read articles, but couldn't figure this. It's said that on the internet If the block has been finalized, it can't be reverted/changed in ...
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coin age selection - how does it work? [closed]

I have 2 questions.. I have read the following: The Coin Age Selection method chooses nodes based on how long their tokens have been staked for. Coin age is calculated by multiplying the number of ...
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How to select the next author of block in Proof-of-Stake? [duplicate]

There is a common (but not precise) opinion that the block's author selection is random in Proof-of-Stake. I therefore posted a question here: Proof-of-Stake: How to prevent someone from being always ...
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Proof-of-Stake: How to prevent someone from being always selected as an author of block? [duplicate]

In proof-of-stake, by definition, each stakeholder deposits and locks some tokens (stakes) for more chances to be selected as an author of block in a random-based election procedure. Till here, it's ...
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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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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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Is there an official and public pool of miners/“stakers” participating in the Ethereum blockchain?

With the last discussion about PoW vs PoS, Ethereum planning migrating to pure PoS (Casper), new actors in the scene (EOS)...I have digged into this PoS, pros and cons against PoW. One of the things ...
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Proof of work vs Proof of Stake [duplicate]

I'm newbie to Ethereum and trying to make things clear. I've read few articles about PoW(proof of work) vs PoS(proof of stake) and what I understood is, Proof of Work is nothing but the mining, in ...
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Can you use Ethereum to build a blockchain with a different proof mechanism? [duplicate]

This may be a silly question but is it possible to build a system that can use both the euthereum proof of work/stake and a custom built proof using the same ethereum nodes?
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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 ...
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Will PoS lover the tx fees? [duplicate]

There's a lot of speak about PoS being more environmentally friendly and making transactions faster to be included in the blockchain but I haven't found any info on the fees. Will the minimum gas ...
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Is Casper implemented yet?

So as far as I understand, Proof-of-stake works by all nodes voting on what they think the correct next block should be and then recieving a small reward out of thin air if they guess correctly and a ...
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What is the ROI of owning Ether after entering POS?

It's from my understanding you make ETH by owning ETH during POS. And assuming that is true how will ROI be determined?

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