What happens after a bitcoin fork

The ultimate guide to Bitcoin Forks | Coinfirm

As both groups of users remain part of the same network, a soft fork will never result in the formation of a new cryptocurrency. A soft fork is considered complete once the majority of machines in the bitcoin network have updated their software. This means that users running the old software will not recognise blocks created by those running the new software, and vice versa. For this reason, hard forks usually lead to a split in the blockchain with a group of users effectively leaving the old network to form a cryptocurrency of their own. In this scenario, the new network takes an exact copy of the blockchain as it was at the point of the split, with both versions remaining separate thereafter.

Users who owned bitcoin at the time of the split can often claim new coins on the forked network. A blockchain fork is what happens when two or more computers mine separate blocks at exactly the same time, creating two competing versions of the blockchain file at different points in the network. This type of fork is generally resolved quickly because one of the proposed updates will propagate through the network at a faster rate than the other, soon becoming the consensus blockchain.

For this reason, a bitcoin transaction should generally not be considered final until at least six blocks have been mined on top of the block that contains it. Alternatively, its price could fall if the network is unable to reach consensus on a popular update, or a hard fork occurs, as a new cryptocurrency could reduce demand for bitcoin. In addition to the disclaimer below, the material on this page does not contain a record of our trading prices, or an offer of, or solicitation for, a transaction in any financial instrument.

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IG International Limited is licensed to conduct investment business and digital asset business by the Bermuda Monetary Authority and is registered in Bermuda under No. List of Partners vendors. In early , the mysterious cryptocurrency developer or team of developers working under the alias Satoshi Nakamoto released the first software program that implemented the digital currency bitcoin. Since then, bitcoin has gone on to not only gain massive appeal across the globe but also to inspire hundreds of other digital currencies.

Many of these cryptocurrencies make use of aspects that were already inherent in Satoshi's initial program and concept. Others take the bitcoin model and adapt or attempt to improve upon it. In some cases, bitcoin has spawned variations that are based on the same underlying concept and program but that are distinct from the original.

In these situations, the bitcoin blockchain has undergone a process known as forking , through which the blockchain itself is divided into two distinct entities. It is through this forking process that various digital currencies with names similar to bitcoin have come to be: bitcoin cash , bitcoin gold, and others. For the casual cryptocurrency investor, it can be difficult to tell the difference between these cryptocurrencies and to map the various forks onto a timeline.

Below, we'll walk through many of the most important forks to the bitcoin blockchain over the past several years. In , shortly after releasing bitcoin, Satoshi mined the first block on the bitcoin blockchain.

This has come to be referred to as the Genesis Block , as it represented the founding of the cryptocurrency as we know it. Satoshi was able to make numerous changes to the bitcoin network early on in this process; this has become increasingly difficult and bitcoin's user base has grown by a tremendous margin. The fact that no one person or group can determine when and how bitcoin should be upgraded has similarly made the process of updating the system more complex. In the years following the Genesis Block, there have been several hard forks. During a hard fork, software implementing bitcoin and its mining procedures is upgraded; once a user upgrades their software, that version rejects all transactions from older software, effectively creating a new branch of the blockchain.

However, those users who retain the old software continue to process transactions, meaning that there is a parallel set of transactions taking place across two different chains.

List of bitcoin forks

Bitcoin XT was one of the first notable hard forks of bitcoin. The software was launched by Mike Hearn in late in order to include several new features he had proposed. While the previous version of bitcoin allowed up to seven transactions per second, Bitcoin XT aimed for 24 transactions per second. In order to accomplish this, it proposed increasing the block size from 1 megabyte to 8 megabytes.

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Bitcoin XT initially saw success, with more than 1, nodes running its software in the late summer of However, by just a few months later, the project lost user interest and was essentially left for dead. Bitcoin XT is technically still available, but it is generally seen to have fallen out of favor.

Hard Forks and Soft Forks in Bitcoin, Ethereum, and Other Cryptocurrencies

When Bitcoin XT declined, some community members still wanted block sizes to increase. In response, a group of developers launched Bitcoin Classic in early Unlike XT, which proposed increasing the block size to 8 megabytes, Classic intended to increase it to only 2 megabytes. Like Bitcoin XT, Bitcoin Classic saw initial interest, with about 2, nodes for several months during The project also still exists today, with some developers strongly supporting Bitcoin Classic. Nonetheless, the larger cryptocurrency community seems to have generally moved on to other options.

Bitcoin Unlimited remains something of an enigma since its release in early The project's developers released code but did not specify which type of fork it would require. Bitcoin Unlimited set itself apart by allowing miners to decide on the size of their blocks, with nodes and miners limiting the size of blocks they accept, up to 16 megabytes. Despite some lingering interest, Bitcoin Unlimited has largely failed to gain acceptance.

What Are Forks and How Do They Impact the Price of Cryptocurrency?

Put simply, SegWit aims to reduce the size of each bitcoin transaction, thereby allowing more transactions to take place at once. SegWit was technically a soft fork. However, it may have helped to prompt hard forks after it was originally proposed. In response to SegWit, some bitcoin developers and users decided to initiate a hard fork in order to avoid the protocol updates it brought about.

Bitcoin cash was the result of this hard fork. It split off from the main blockchain in August , when Bitcoin Cash wallets rejected bitcoin transactions and blocks.

What Is a Bitcoin Fork?

Bitcoin Cash remains the most successful hard fork of the primary cryptocurrency. As of March , it is the eleventh-largest digital currency by market cap , owing in part to the backing of many prominent figures in the cryptocurrency community and many popular exchanges. Bitcoin Cash allows blocks of 8 megabytes and did not adopt the SegWit protocol. Bitcoin Gold was a hard fork that followed shortly after Bitcoin Cash in October The creators of this hard fork aimed to restore the mining functionality with basic graphics processing units GPU , as they felt that mining had become too specialized in terms of equipment and hardware required.

One unique feature of the Bitcoin Gold hard fork was a "pre-mine," a process by which the development team mined , coins after the fork had taken place. Many of these coins were placed into a special "endowment," and developers have indicated that this endowment will be used to grow and finance the Bitcoin Gold ecosystem, with a portion of those coins being set aside as payment for developers as well.

Generally, Bitcoin Gold adheres to many of the basic principles of bitcoin. However, it differs in terms of the proof-of-work algorithm it requires of miners. When SegWit was implemented in August , developers planned on a second component to the protocol upgrade. This addition, known as SegWit2x , would trigger a hard fork stipulating a block size of 2 megabytes. SegWit2x was slated to take place as a hard fork in November However, a number of companies and individuals in the bitcoin community that had originally backed the SegWit protocol decided to back out of the hard fork in the second component.

Some of the backlash was a result of SegWit2x including opt-in rather than mandatory replay protection; this would have had a major impact on the types of transactions that the new fork would have accepted. On Nov.