Questions tagged [merged-mining]

Merged mining is a technique where the same proof of work can be used to secure more than one block in different hash chains. This allows a miner to mine more than one currency at a time and contribute his hashing power to all of them.

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How does merged mining work?

How does the implementation of merged mining affect the global hash rate of alt chains? Does one solution fit all? Does one solution fit some? Does the rate of "solutions that will fit" decrease ...
MaxSan's user avatar
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12 votes
2 answers

How is a side-chain merging back to Bitcoin chain protected against double-spend? Where are the side-chain mining fees?

I am struggling to understand the concept of "side-chains" that's discussed a lot lately, but never trully explained. How I understand "side-chain": it's an altcoin, with a separate blockchain, with ...
Karel Bílek's user avatar
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3 votes
6 answers

Scrypt based merged mining pools

Does anyone know why there are no Scrypt based merged mining pools out their yet? I would imagine that if it was possible it would have been done already. There is no problem to do it with SHA-256 ...
User2344452's user avatar
10 votes
1 answer

When did merged Namecoin-Bitcoin mining start?

(This question was originally asked before merged mining began) When exactly did merged mining of Bitcoin and Namecoin chains start?
ripper234's user avatar
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9 votes
2 answers

Does encoding Namecoin/messages into the blockchain bloat it?

I read today twice concerns about inflating the blockchain: NameCoin Bitcoin Message Service So, does using these services "over inflate" the blockchain? The way I see it, if another protocl rides ...
ripper234's user avatar
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4 votes
1 answer

Which crypto currencies can merge mine with Bitcoin?

I remember namecoin has the ability to merge mine with Bitcoin. Are there any others? Is this a bitcoin ability or ability of the coin that is merge minable?
Patoshi パトシ's user avatar
2 votes
1 answer

What is OP_RETURN b9e11b6d?

While investigating some Bitcoin coinbase transactions, I notice that a lot of them have an output of the form OP_RETURN OP_PUSHBYTES_36 b9e11b6d… where ‘…’ is 32 bytes, probably a hash of something. ...
George Lowther's user avatar
1 vote
2 answers

What are the mean, median, range, limits and trends in the size of coinbase transactions?

I'm attempting to estimate how much "spare capacity" there is for merged mining protocols. As I understand it the scriptSig in the coinbase transaction must be less than 100B. However, the ...
Lee's user avatar
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