Questions tagged [mining-technical-details]
Questions concerned with the technical details of mining such as blockheader assembly, or details in the mining algorithm. Questions about the conceptual nature of mining should rather be tagged with [mining-theory].
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What is the extraNonce?
This question helps identify the various components of the getwork "data" field, but I'm curious where the extraNonce comes from. My hunch is it's the first four bytes of the second half of the data, ...
- 655
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1
answer
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Whats the process of Creating a Block on the BlockChain
have been mining on pools and blindly going a long for the ride of
> generating a block
Can somebody walk through the process in simple terms of the steps involved in creating a block on the ...
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1
answer
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What is SPV mining, and how did it (inadvertently) cause the fork after BIP66 was activated?
I'm curious to hear an in-depth explanation of the hard fork and how it was caused; I've heard/read a great deal but I'm lacking a cohesive explanation.
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How is it that concurrent miners do not subvert each other's work?
Every time a new block is added on top of block chain, the miners have to restart their work because the next block has to have a proper reference to previous block.
Let's suppose that there is some ...
- 247
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2
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When does a miner decide to stop collecting transactions and start calculating hashes to try to win?
I am confused about whether a miner chooses to wait for more transactions (more fees) or starts as soon as it receives the first transaction from the network. Once a miner has started calculating the ...
- 625
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2
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What happens to extinct blockchains, and transactions inside of them?
While understanding the concept of block chain and proof of work, few things are confusing me. Miners always consider the longest chain(by difficulty) and work on expanding it. Now, lets say two ...
25
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2
answers
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How does AsicBoost work?
The AsicBoost paper by Timo Hanke and Sergio Demian Lerner describes a way of increasing ASIC performance by 20%. It's a bit sparse on the details, though. What are they optimizing?
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3
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How do mining pools work?
I understand the following
Pooled mining is a mining approach where multiple generating clients
contribute to the generation of a block, and then split the block
reward according the ...
- 191
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3
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What are ASIC miners actually doing?
I'm trying to understand Bitcoin mining (software-wise), and I wonder how ASIC miners are different? I'm going through this minimal Bitcoin miner Github repository.
Which part of Program.cs are ASICs ...
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3
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How hard is it to alter a block after it was found?
Once a miner has found a block, how easy it is for him to add or remove a tx included in that very block? Would he have to solve the modified block from the scratch or is there a point he can resume ...
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2
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Which coins can butterfly-labs miners mine
Can I use a butterfly-labs miner to mine any crypto-currency?
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2
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How to tell who mined a bitcoin?
If the Bitcoin algorithm was broken and someone started spitting out blocks one after the other through their otherworldly space computer, could it be detected that the same miner was busting all the ...
- 143
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1
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What values are hashed in the SHA-256 algorithm, and what would be the next iteration until a possible header is found?
I've been doing a lot of reading on mining and software related to mining but I can't quite get my head wrapped around the specific nature of what is being hashed together. So far I feel like the ...
- 31
2
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1
answer
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If more than one coin did the "mini-blockchain" proposal, would that make the weaker coin vulnerable?
So, I was reading this paper as a proposal to the ever growing blockchain problem. In summary, it's security is provided without a full blockchain by having a proof chain with these fields:
Previous ...
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2
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Bitcoin Mining using an iPhone?
Is it possible to start Bitcoin mining using an iPhone with 4G internet connection?
Storage is not an issue,or is it?
(Mine is 256GB).
- 11
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4
answers
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relationship between bitcoin miner and verification of transactions [closed]
Bitcoin miner mines a block, which can't be submitted to the network without proof of work. And the new block contains all of the new transactions. Hence the new block acts as a security measure, and ...
- 349
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2
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Probablity Distribution of mining
What is the probability distribution of solving a block, given the same difficulty.
So if I try to mine multiple times using the same difficulty, is it normal distribution with mean of 10 minutes? ...
- 163
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1
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Cheating on pooled mining
What is stopping me from hacking the mining software such that if I do happen to get the right hash I keep it for myself, but if not then I just submit my work done and get my share of the mined ...
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7
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1
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How does a miner perform hashing?
I'm trying to walk my way through the process by which a miner hashes.
Let's say the getwork request returns a data field of:
...
- 655
4
votes
1
answer
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What are midstate and hash1 used for in mining?
The first answer here does a good job explaining how the SHA-256 function requires more than one input (an initial one is specified by to the SHA-256 specs). As far as I understand it, the "midstate" ...
- 655
1
vote
1
answer
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if a coinbase reward isn't fully spent, can the coins ever be recovered? [duplicate]
If a pool mines a block and is mistakenly rewarding miners with less coins than they should be given, is it possible for others to recover those coins somehow? Or are they lost forever?
For example, ...
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1
answer
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Why do we need a mining speed above 4.3Ghash/s?
I believe there will be a simple flaw in my understanding somewhere.
From what I can tell for any given block you increment a nonce up to 2^32 (4294967296) per second (and the timestamp every second) ...
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2
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How Is Block Assembled?
I think I understand mining well enough, but what I don't get is how the blocks of transactions are assembled. According to this post - What exactly is Mining? - the miners assemble the blocks and ...
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