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What is Merged Mining?

Can you mine two cryptos at the same time?

Merged mining, or Auxiliary Proof-of-Work for the more technical crowd, is the process of mining two separate cryptocurrencies at the same time. Although not as popular as traditional Proof-of-Work or even Proof-of-Stake consensus algorithms, some projects have implemented merged mining to ‘piggyback’ off more secure networks as they grow.

Although he didn’t include it in the Bitcoin whitepaper, Satoshi Nakamoto outlined a rough idea of merged mining in a Bitcointalk forum in 2009. Let’s look further into how this innovative mining works, what it means for the projects that implement it, and how you can take advantage as an investor.

Merged Mining

How does Merged Mining work?

Every merged mining implementation has an auxiliary chain and a more established parent chain. To work together, both chains must share the same hashing algorithm. We’re going to examine one of the most popular merged mining pairs, Namecoin and Bitcoin, to explain the process.

In this pair, Bitcoin is the parent chain while Namecoin is the auxiliary chain piggybacking off Bitcoin’s network. Both cryptocurrencies use the SHA-256 hashing algorithm for mining.


Parent chain developers don’t need to perform any additional work to implement merged mining. Therefore, the Bitcoin network doesn’t even need to know that Namecoin is mining along with it.

Auxiliary chains, however, need some added development to integrate merged mining. Continuing our example, Namecoin developers updated the blockchain to accept proof of Bitcoin mining as valid on the Namecoin blockchain as well.

Merged Mining Process

Merged mining requires no additional computing power for the miners. As a miner, you mine Namecoin and Bitcoin just as efficiently as you would when mining only Bitcoin. You (or your mining pool) just need to perform the additional set-up to support it.

Here’s how it works:

You begin by assembling a block of transactions for each chain – Bitcoin and Namecoin in our example. The Namecoin (auxiliary chain) block includes what you’d expect in a standard set of transactions. The Bitcoin block also contains regular transactions. However, it has an additional transaction with the hash pointing to the Namecoin block you just constructed.

After assembling your blocks, you mine. There are a few different scenarios that could play out here:

  • You mine a block at Bitcoin’s difficulty level. You finish creating the Bitcoin block and broadcast it to the Bitcoin network. Because the difficulty level at which you mined the Bitcoin block is higher than Namecoin’s difficulty level, you also mine a Namecoin block. You receive both mining rewards.
  • You mine a block at Namecoin’s difficulty level. You finish assembling the Namecoin block by inserting the header and hash of the Bitcoin block. The Namecoin chain then accepts this block. It’s able to recognize the additional Bitcoin header and hash as your proof of work because of the development work you did to support merged mining. You only receive the Namecoin mining reward.
  • You mine a block between Namecoin’s and Bitcoin’s difficulty level. You experience the same outcome as scenario number two.

Merged Mining Implications

The Good

Small and new blockchain projects have a few good reasons to integrate merged mining. Most importantly, doing so beefs up the security of their network while still being able to operate as a distinct chain. These auxiliary chains also gain exposure by being associated with a more popular blockchain.

Additionally, miner’s are heavily incentivized to participate as they receive extra income at no additional cost or power. And, because miners usually trade between the two coins to keep what they favor, there’s a boost in liquidity for both cryptos.

The Neutral

Parent chains fall victim to some blockchain bloat with the addition of auxiliary chains. The hashes that the auxiliary chain adds to the parent chain’s transaction tree are small, but they do take up space. As long as coins like Bitcoin are successful in implementing second-layer scaling solutions, this bloat shouldn’t become an issue.

The Bad

Unfortunately, it’s not all sunshine and rainbows. Integrating merged mining requires additional development work on the auxiliary chain. When switching over from another mining protocol to merged mining, you need to hard fork. Another hard fork is necessary if you ever want to switch away from merged mining.

Miners and mining pools also have some work to do if they want to reap the benefits of mining two chains. Although merged mining doesn’t require additional power, it does require more maintenance work. In mining two blockchains, you have twice the connections to serve and twice the distribution channels to maintain (if you run a mining pool). Some groups may not find the added upkeep worth the extra coin.

Investor Insights

Overall, merged mining provides more of an advantage to miners than it does to investors. However, when combined with other information, merged mining could be a telling sign of a promising project. Here are some past and future examples:

Namecoin – No Long-term Guarantees

Namecoin, effectively a decentralized domain registry, was the first coin to have merged mining with Bitcoin. Once a top 10 cryptocurrency by market cap, it’s dropped significantly to a spot in the high 200s. It serves as a great example of how a project can slowly fall by the wayside – even when tied to cryptocurrency’s most powerful network.

Namecoin Mining

Even though a significant number of mining pools support Namecoin merged mining, the coin hasn’t seen much adoption in its five-year history. Development is also not as active as similar projects. This fall from grace goes to show that just because a cryptocurrency includes merged mining that doesn’t necessarily mean the fundamentals warrant an investment.

Dogecoin – Immediate After Effects

Early in Dogecoin’s life, the community decided to integrate merged mining with Litecoin. They found that with the original mining mechanism in place, the network would run out of significant mining rewards within the year. With no changes, miners wouldn’t have an incentive to mine, and the network would be susceptible to a 51% attack.

Almost immediately after switching from Proof-of-Work to Auxiliary Proof-of-Work, the Dogecoin price rose from about $0.0002 (~0.00000041 BTC) to around $0.00047 (~0.00000115 BTC). That’s over a 180 percent increase in BTC price over just a couple of weeks.

Dogecoin Mining

Although just one data point, it shows that a project that switches to merged mining could be a profitable short-term investment. There are a few reasons why this may be true.

First, the additional network security brings immediate confidence to the community. Also, tethering to a more well-known coin provides more exposure to lesser-known cryptocurrencies. It’s like a quick marketing boost. Finally, merged mining adds liquidity to both chains as miners trade to keep the coins they prefer.

Elastos – Potential Sleeper Pick

Elastos is a blockchain-powered Internet that integrates merged mining with Bitcoin. With this coin still relatively unknown, it may be a solid pick up at this time. Once the platform is complete and merged mining is available, the Elastos price could see a similar rise to Dogecoin.

Additionally, Elastos is collaborating with NEO and Bitmain as the G3 of China. It’s rumored that Bitmain will dedicate a portion of the company’s hash power to mining Elastos. For those of you that don’t know, Bitmain controls some of the largest Bitcoin mining pools. So this support is a positive indicator for the Elastos price.

With this in mind, it seems as if the Elastos price should have firm upward pressure once mining begins. However, analyzing the project as a long-term (greater than one year) hold requires a deeper dive into the fundamentals.

Final Thoughts

Merged mining is an excellent option for young projects looking to grow without fear of a 51% attack. From an investment standpoint, a project’s decision to implement merged mining could cause an immediate jump in price. Although, this price boost may not last.

No matter how it affects the price, merged mining is something to be aware of as an investor, a miner, or even just a crypto enthusiast. With the ever-increasing threat of 51% attacks, switching to merged mining could very well be a trend that we start to see more of as we grow as an industry.

This article by Steven Buchko was previously published on

About the author:

Based in Austin, TX, Steven is the Executive Editor at CoinCentral. He’s interviewed industry heavyweights such as Wanchain President Dustin Byington, TechCrunch Editor-in-Chief Josh Constine, IOST CEO Jimmy Zhong, Celsius Network CEO Alex Mashinsky, and ICON co-founder Min Kim among others. Outside of his role at CoinCentral, Steven is a co-founder and CEO of Coin Clear, a mobile app that automates cryptocurrency investments. You can follow him on Twitter @TheRealBucci to read his “clever insights on the crypto industry.” His words, not ours.

It’s been three years since the minds behind the Minergate platform saw the need to level the mining playing field by providing PC users with the ability to combine their CPU power to mine cryptocurrencies. These cooperative mining pools make it possible for individuals to mine cryptocurrencies profitably in a time when large multimillion dollar data mining centers continue to spring up around the world.  To get a better understanding of the significance of the, let’s take a quick moment to review the current mining landscape.

The Not so Decentralized Cryptomarket

Today, mining is big business and unless you are ready to fork out some serious cash on some new hardware, you may find it difficult to profitably mine crypto in your area. Miners use specially designed mining rigs that are far more efficient at mining than your regular PC. On top of this new technological barrier, huge mining facilities have been popping up around the globe.  These gigantic facilities incorporate up to 15,000 mining rigs in a single location, and many consume as much power as a small city.

All of these developments in the mining arena have made it seem almost impossible for individuals to mine crypto from their home PC or laptop.

Minergate Is Born

It was in March of 2014 when Minergate first unveiled the concept of public mining pools to the world. Mining pools work by combining the processing power of all the computers on the network and then splitting the profits. This allows a person to mine using their home CPU or GPU, thereby eliminating the need to make a large investment in a mining rig setup.


What Is Minergate?

Minergate was founded as the first public mining pool for cryptocurrencies utilizing the CrytoNote protocol. Today, this includes a wide variety of coins. You can easily mine a number of the most popular cryptocurrencies in the market including:

The Minergate sign up process is simplistic and doesn’t require any upfront fees. In fact, you only pay fees on the coins that you mine.

Minergate Stats

MG has boosted some impressive statistics since its inception with over 500,000 miners profiting from the use of the platform to date. Minergate also receives around 2,000 new signups a day. The ease-of-use and open nature of the platform make it ideally suited for anyone interested in mining cryptocurrencies on a budget.

Minergate Poolmining

Minergate isn’t alone in the crypto-pool mining space, and there are many options for a potential miner to consider. That being said, Minergate has some unique features that make it stand out amongst the competition in a major way.

Automated Merged Mining – Smart Mining

It shouldn’t be a huge surprise to learn that the guys who first brought the public mining pool concept to the market have now improved upon their design. The Minergate platform features a Smart Mining feature that calculates the current network hash rates and your PC’s power level to determine the most profitable coin to mine.

When initiated, this protocol will automatically select the most profitable coin at that moment and switch to another if the one selected is no longer the best option. This allows a would-be miner to mine multiple coins using nothing more than their home PC. It also provides Minergate users with more flexibility on the platform.

Two-Factor Authorization

Security in the crypto space is paramount and Minergate incorporates Google 2-factor authorization to provide you with an added layer of protection. This security feature requires you to access a time-sensitive code on your mobile device to guarantee that it’s you trying to enter the account.

Pure Coins

All the coins rewarded on the Minergate platform are pure coins in that they all come directly from unlocked block rewards. In this way, Minergate is providing their users with a true mining experience.

Cloud Mining

Minergate owns some of the largest mining facilities in the world and users can choose to rent more Hash power to improve their mining results directly from the platform’s interface. Minergate guarantees 24/7 mining proficiency from their rigs, and considering the sheer size of some of their mining facilities, it’s easy to see how they could accomplish this task.

Minergate – The Gateway to Mining Cryptocurrencies in 2018

Do you want to get into mining?  Minergate is one of the easiest and most cost-efficient ways for you to do so. This platform has proven to be a strong force in the crypto community, and as the mining sector continues to develop, you should expect to see more technological advancements in the field of home PC mining.

This article by David Hamilton was previously published on

About the Author:

David Hamilton aka DavidtheWriter has published thousands of cryptocurrency related articles. Currently, he resides in the epicenter of the cryptomarket – Puerto Rico. David is a strong advocate for blockchain technologies and financial sovereignty.

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