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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Do Bitcoin miners verify validity of merge-mined Namecoin blocks?

I've been reading a little about merged mining as used in Bitcoin and Namecoin. It seems like merged mining effectively eliminated Namecoin-only mining pools, right? Since Namecoin-only pools are ...
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Nonce in Merged Mining

When mining Bitcoin, the nonce is included in the header, which is then hashed and checked to see if it is below the target threshold. Everybody can verify that the header does indeed hash below the ...
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How does merged mining work on a technical level?

In bitcoin, miners hash the header twice with the SHA256 function. This header consists of the fields listed below, as described by this question. version previousHashBlock merkleRoot time ...
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How to set up for merged mining

I plan to eventually add litecoin, Dogecoin, and possibly some other scrypt merged-minable coins to my pool. Are there any tutorials or other information available that would show me how to set my ...
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What restrictions does merged mining place on the sidechain?

What restrictions are imposed by merged mining on the structure or functionality of a side chain (besides it having to use the same PoW schema)? For example, could the side chain have a higher block ...
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How can I remove the charity features in my Devcoin clone?

I'm trying to produce a SHA256 altcoin which is merge mined with Bitcoin. I'd like to use some recent code, rather than base in on a 0.8.* or earlier codebase. I've found this source: https://github....
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Complete list of merged mineable coins? SHA256 + Scrypt

mmpool.org mines these SHA256 PoW coins: Bitcoin Namecoin Ixcoin Devcoin I0coin Groupcoin https://en.bitcoin.it/wiki/Merged_mining_specification claims that it is only used by Namecoin Is there a ...
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p2pool merged mining

I installed p2pool on my server for triple merged mining - VTC, MON, PLX. Server is running smoothly, but I don'know how to setup my addreses in miner. I have read that you can add for example MON ...
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How are block rewards claimed in merged mining?

How do you claim a block reward on a merged chain? If I understood it right: let's say you are mining Bitcoin and Namecoin. When you find the solution to a BTC block, you include a transaction in the ...
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Are sidechains really new?

People have been talking a lot about side chains, but I thought this has been around for a while under a different name. Coins like Namecoin, Devcoin, ixcoin, i0coin, groupcoin, etc are all merge ...
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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 ...
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How does namecoin and other merge-mined coins prevent pre-mine attacks?

So, namecoin supports merged mining against bitcoin. My understanding of the merged mining protocol is that basically miners can use the primary coin's POW solution to solve the aux coin's block. It's ...
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Not getting merged mined coins on p2pool

I have been able to mine successfully on my bitcoin p2pool. I set up merge mining according to the guide found here https://bitcointalk.org/index.php?topic=62842.0 and everything seems to be running ...
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Merged mining: are there any ways to prevent it?

Supporting merged mining allows a cryptocurrency A to improve the security its blockchain (increase the hash rate) by accepting work done on the blockchain of cryptocurrency B through insertion of a ...
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Merged mining scrypt coins [duplicate]

I've been reading around the last day or so on merged mining for coins, in specific scrypt coins but there seems to be conflicting answers, can someone let me know which of the following is correct a)...
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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 ...
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How does a miner insert the hash of a merged-mined alt chain's transaction into a Bitcoin transaction?

I've read the how does merged mining work? thread and I'm a bit confused as to how one of the transactions in the bitcoin block "stores" the hash of the Namecoin block. Where is this information ...
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Merged Mining Disadvantages

What are the disadvantages of merged mining? I'm very interested in p2pool and since I have to "run my own server" I've been considering enabling merged mining. Besides the obvious administration ...
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What ultimately happens to mining if blocks contain mostly non-Bitcoin data?

I'm trying to understand what can happen if A block consists entirely of 3rd party (xCoin) data like Namecoin There are no Tx fees to collect since they are on alternate chains. Assume that the ...
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Can ASICS Merge-Mine?

Can ASICS in general, and specifically any of the models coming out soon merge-mine other cryptocurrencies?
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What is needed to create a pool with merged mining?

What is needed to create a new pool with merged mining? (Bitcoin, NameCoin, and possibly others)? I'd like to create a new pool that will Include transaction fees in the payout Charge no pool ...
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Specific namecoin address in merged mining

I want to do merged mining with P2Pool, and I want any generated namecoins to go to a specific namecoin address in my wallet. I haven't seen a way to configure this in P2Pool or namecoind, and Google'...
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Does merged mining require clients to download both blockchains?

Suppose I want to start an AltCoin, and set it up for merged mining with Bitcoin. Will it require the AltCoin end-users to also download the Bitcoin blockchain to verify the hashes embedded in the ...
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Detecting dishonest merged-mining pool

How would one go about detecting whether a mining pool is being dishonest by performing merged-mining without sharing the Namecoin income with its miners? We assume that: The pool is operating ...
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Where can I find some guidelines on how to program a merged mining transaction?

In answer to question "How does merged mining work?", we can read that in order to merged mine, we need to create a Bitcoin transaction containing a Namecoin block hash and put it on the tip of the ...
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How to merged mine with getmemorypool RPC command?

The getmemorypool RPC command lists all transactions that are to be included in a block, with the exclusion of the generating transaction. In merged mining, one needs to add an extra transaction ...
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Merged mining custom bitcoind

What are the core changes to bitcoind that allow one to merge-mine? Are there any new JSON-RPC commands that are enabled, or changes to the existing ones?
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Why do namecoins have any value?

Many Bitcoin mining pools offer merged mining with Namecoin, and there are places where one can buy and sell BTC for NMC and the other way around. But, why would anyone want to own NMC? As far as I ...
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Which Namecoin block was the first one to be generated by merged mining?

For a definitive record is it possible to determine if a namecoin block was generated via merged mining? Is so which was the first one. Which is the first bitcoin block to have namecoin information ...
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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 ...
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Will merge mining patch make Bitcoin network mining power available to anyone?

I think Namecoin has a good value, but while I think Vladimir overestimates the inflation effect of merged mining, I still mostly agree with his post, which is negative towards uncontrolled merged ...
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Will merged mining mine each chain as efficiently as non-merged mining?

Let's say I get a hash rate of X when mining either Bitcoin or Namecoin. When using Merged Mining, will I be able to still do X concurrently on both blockchains, or will I do significantly less than ...
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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 ...
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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?