The concept of Hard Fork gained popularity with the launch of Bitcoin Cash in 2017. But what exactly does it mean? Let’s take a closer look at this important term in the cryptocurrency space.
The crypto industry continuously introduces new terminology, and in 2017 the term Hard Fork entered the vocabulary of investors. The word “fork” itself means a split or divergence. A Hard Fork refers to a mandatory split in a blockchain network. For those new to the crypto world, this may sound abstract, but it essentially describes a fundamental division in the blockchain that creates a new, alternative chain.
A hard fork is typically carried out to fix security vulnerabilities, add new features, or improve the overall performance of the blockchain. When it occurs, it creates an entirely new blockchain that operates alongside the old one, sometimes leading to the creation of new cryptocurrencies.
Types of Forks
Before diving deeper, it’s important to understand that forks generally fall into two categories:
-
Hard Fork: Represents a permanent and incompatible change to the blockchain protocol, creating a new chain. It is often used to fix security flaws, add new features, or reverse transactions. Once a hard fork happens, the new chain is independent from the original one.
-
Soft Fork: A more subtle change that introduces backward-compatible updates. The original chain continues, but new rules are enforced, allowing users and developers to gradually migrate to the updated version.
What Should Investors Do During a Hard Fork?
For everyday investors, hard forks can be risky. Here are two common scenarios:
-
Undisputed Updates: If the update does not create a new cryptocurrency, you only need to follow announcements from your crypto exchange. If the exchange supports the update, you can continue trading normally. If not, you may need to transfer your assets to a supporting exchange.
-
New Cryptocurrency Creation: If a hard fork results in a new coin, exchanges usually announce whether they will support it. If they do, your wallet on that exchange will be credited with the new coin after the fork. If not, you may need to transfer your holdings to an exchange or wallet that supports the new asset. If you store your coins in a private wallet, you typically retain access to both the old and new chains without needing to take immediate action.
Examples of Hard Forks
-
Bitcoin Cash (BCH): Launched in 2017 as a hard fork of Bitcoin, BCH was created to address disagreements within the Bitcoin community about block size and transaction scalability. While it shared history with Bitcoin up to block 478,558, it then diverged to become an independent cryptocurrency. Bitcoin Cash itself later underwent a hard fork, leading to the creation of Bitcoin SV.
-
Ethereum Classic (ETC): Created in 2016 after the infamous DAO hack that resulted in the theft of 50 million ETH. The Ethereum community split on how to respond, and most chose to implement a hard fork at block 1,920,000 to reverse the theft. However, a portion of the community rejected altering the blockchain’s history, continuing the original chain as Ethereum Classic.
Is a Hard Fork the Same as Cloning?
Hard forks are sometimes confused with cloning, but they are very different concepts. Cloning involves copying existing blockchain code to launch a new cryptocurrency, such as Litecoin, which was cloned from Bitcoin in 2011.
In contrast, a hard fork splits an existing blockchain into two separate, functional chains. Examples include Bitcoin to Bitcoin Cash, or Ethereum to Ethereum Classic. Thus, the answer to “Is a hard fork the same as cloning?” is no.
The Future of Hard Forks
Hard forks have had a significant impact on the crypto industry—sometimes positive, sometimes negative. While they can drive innovation and improve blockchain functionality, they also carry risks, such as fragmenting communities or creating uncertainty for investors.
It’s also worth noting that forking is not the only way to upgrade or improve a cryptocurrency. Nevertheless, hard forks (and soft forks) will likely remain an integral part of blockchain evolution in the years to come.
Leave a Reply