Will bitcoin holders get bitcoin gold - simply
List of bitcoin forks
Bitcoin forks are defined variantly as changes in the protocol of the bitcoin network or as the situations that occur "when two or more blocks have the same block height".[1] A fork influences the validity of the rules. Forks are typically conducted in order to add new features to a blockchain, to reverse the effects of hacking or catastrophic bugs. Forks require consensus to be resolved or else a permanent split emerges.
Forks of the client software
The following are forks of the software client for the bitcoin network:
- Bitcoin XT
- A fork initiated by Mike Hearn. The current reference implementation for bitcoin contains a computational bottleneck.[2] The actual fork was preceded by Mike Hearn publishing a Bitcoin Improvement Proposal (BIP 64) on June 10, , calling for the addition of "a small P2P protocol extension that performs UTXO lookups given a set of outpoints."[src 1] On December 27, Hearn released version of the forked client XT, with the BIP 64 changes.[src 2] It achieved significant attention within the bitcoin community in mid amid a contentious debate among core developers over increasing the block size cap.[3]
- On June 22, , Gavin Andresen published BIP calling for an increase in the maximum block size. The changes would activate a fork allowing eight MB blocks (doubling in size every two years) once 75% of a stretch of 1, mined blocks is achieved after the beginning of [src 3] The new maximum transaction rate under XT would have been 24 transactions per second.[4]
- On August 6, Andresen's BIP proposal was merged into the XT codebase.[src 4][src 5] Bip was reverted[src 6] and the 2-MB block size bump of Bitcoin Classic was applied instead.
- The August release of XT received widespread media coverage. The Guardian wrote that "bitcoin is facing civil war".[3]
- Wired wrote that "Bitcoin XT exposes the extremely social — extremely democratic — underpinnings of the open source idea, an approach that makes open source so much more powerful than technology controlled by any one person or organization."[5] Developer Adam Back was critical of the 75% activation threshold being too low and that some of the changes were insecure.[6]
- On August 25, , Bitcoin XT published Release G, which was a Bitcoin Cash client by default.[src 7] Subsequently, Release H was published, which supported the November Bitcoin Cash protocol upgrade, followed by Release I, which supported the May Bitcoin Cash protocol upgrade.
- Bitcoin Classic
- In its first 8 months, Bitcoin Classic promoted a single increase of the maximum block size from one megabyte to two megabytes.[7] In November this changed and the project moved to a solution that moved the limit out of the software rules into the hands of the miners and nodes.[8]
- Bitcoin Unlimited
All three software clients attempt to increase transaction capacity of the network. None achieved a majority of the hash power.[9]
Intended hard forks splitting the cryptocurrency
Hard forks splitting bitcoin (aka "split coins") are created via changes of the blockchain rules and sharing a transaction history with bitcoin up to a certain time and date. The first hard fork splitting bitcoin happened on 1 August , resulting in the creation of Bitcoin Cash.
The following is a list of notable hard forks splitting bitcoin by date and/or block:
- Bitcoin Cash: Forked at block , 1 August , for each bitcoin (BTC), an owner got 1 Bitcoin Cash (BCH)
- Bitcoin SV: Forked at block , 15 November , for each Bitcoin Cash (BCH), an owner got 1 Bitcoin SV (BSV).
- Bitcoin Gold: Forked at block , 24 October , for each bitcoin (BTC), an owner got 1 Bitcoin Gold (BTG)
Intended soft forks splitting from not-most-work block
- The fork fixing the value overflow incident was controversial because it was announced after the exploit was mined. It was assigned CVE
Unintended hard forks
Two hard forks were created by "protocol change" definition:
- March Chain Fork (migration from BerkeleyDB to LevelDB caused a chain split)[10]
- CVE (Bitcoin allowed double spending certain inputs in the same block. Not exploited)
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