Linked Questions

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1answer
45 views

Ethereum Difficulty Formula

Is this the current difficulty formula for Ethereum? block_diff = parent_diff + parent_diff // 2048 * max(1 - (block_timestamp - parent_timestamp) // 10, -99) + int(2**((block.number // 100000) - 2)) ...
2
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1answer
640 views

Where can I set the max/total supply of ether for a private ethereum blockchain?

I have created a private ethereum based blockchain and I would like to set the max/total supply and not sure where to do this or how to do this during the genesis block creation.
1
vote
1answer
1k views

Chain Specification “difficulty” vs. Hash Rate?

What does "difficulty" refer to in the chain specification, if actual difficulty is determined by hashrate? I know that "difficulty" went down after the ETH/ETC fork, but why then is difficulty in ...
2
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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?
5
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1answer
419 views

What are the mechanisms that use the Ethereum network to decide when a block B is done and we are going to mine block B+1?

I know from the Ethereum Stats that a block is mined on average within 14 secs. But that is only on average. I want to know, step by step if possible, what are he mechanisms to say "okay, this block ...
2
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1answer
2k views

How difficulty is related to mining in ethereum blockchain ?

I am very much curious to know how difficulty is related to the mining process and how the static difficulty will effect the mining process ?
3
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2answers
703 views

Is it possible to decrease difficulty of ongoing private Ethereum blockchain?

Please note that my question is in addition to following question: How do I decrease the difficulty on a private testnet?. I am sorry that, I am lost in its answers. [Q] Is it possible to decrease ...
4
votes
1answer
630 views

Are there any drawbacks for making difficulty static on a private chain?

I have made difficulty static in my private block chain, so I can have static response time. Are there any drawbacks of doing this?
1
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1answer
241 views

How many miners are necessary for correct private blockchain work?

Can we calculate the number of miners,that we will need in private blockchain in advance and how? for POW algorithm
5
votes
1answer
231 views

Difficulty growing exponentially with block chain length?

The Ethereum Yellow Paper includes on page 6 in equation (44) a term which contributes to the difficulty of a block. This term is added to the difficulty in equation (39). is an exponential ...
13
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1answer
2k views

Is it possible to change the block target time?

We're curious to know what factors go into block times in a private network with a limited number of validators. Is this fixed or can it be parameterized in any way? How is it related to block times ...
1
vote
1answer
912 views

What happens if the block time changes to 5 seconds?

Related to this and this. The difficulty adjustment algorithm is: block_diff = parent_diff + parent_diff // 2048 * max(1 - (block_timestamp - parent_timestamp) // 10, -99) + int(...
7
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2answers
547 views

Can a child block have an earlier timestamp than the parent block?

From From EIP 2, the Homestead difficulty adjustment algorithm is: block_diff = parent_diff + parent_diff // 2048 * max(1 - (block_timestamp - parent_timestamp) // 10, -99) + int(2**...
4
votes
1answer
638 views

What was the first block mined with Homestead?

What was the first Homestead mined block? 1,150,000 was planned if someone can confirm? https://ethereum.stackexchange.com/a/1834/264 can one see that its a homestead block by some property? ...
10
votes
2answers
698 views

What is the measured distribution of block times since Homestead?

The variance of block times should arguably follow a Poisson distribution. But by casual observation I've seen blocks fast as 4 s or 1 m 15 s. The average is around 14 s since Homestead. If it follows ...

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