Cryptocurrencies like Bitcoin can be “forked.” In simple terms, this either creates two versions of a coin or updates one version.

Sometimes new coins are created this way.

In other cases coins can be “airdropped” to people who hold existing coins for a myriad of reasons.

This section includes information on cryptocurrency forks and airdrops.






Transaction Replay and Replay Protection With Hard Forks Explained

When a coin does a hard fork, two identical blockchains exist until changes to one of the chains is made. To avoid transaction replays (transactions made on one chain being broadcast on the other), at least one chain must implement replay protection (developers of one chain must change the format of transactions to make them unique).


Upcoming Ethereum Forks in Jan 2019

There are a few Ethereum forks coming in 2019. These include the long planned Constantinople upgrade, ETH Classic Vision (ETCV), and Ethereum Nowa coming Jan 2019.


Upcoming Ethereum Forks

There are a few Ethereum forks coming in 2019. These include the long planned Constantinople upgrade, ETH Classic Vision (ETCV), and Ethereum Nowa coming Jan 2019.



KIN Plans Fork and Create its Own Blockchain

KIN, an ERC-20 by the company Kik, plans to fork and create its own blockchain. Assuming everything goes as planned, KIN holders will have KIN on the new blockchain in ratio to KIN held on the Ethereum blockchain.


The Bitcoin Cash Fork (Bitcoin SV) is Nov 15

The Bitcoin Cash fork snapshot is on November 15th (11/15/2018 at 4:40pm UTC). The expected result is two Bitcoin Cash chains and two Bitcoin Cash tokens. These two versions of Bitcoin Cash are commonly called BTCABC and BTCSV. Assuming all goes as planned, BCH holders will get the forked asset, Bitcoin SV, at a 1:1 ratio to BCH.