A merger of two chains would be a curious experiment, but it would create three chains, not one, according to Ethereum co-founder Vitalik Buterin.
Vlad Zamfir, lead developer of the Casper project for Ethereum (ETH), has recently raised the issue of a possible blockchain merger, taking balances and features from two blockchains to create a brand-new asset and ecosystem.
A few days later, Ethereum creator Vitalik Buterin responded to the idea of a merger, saying it is possible, at least in theory, but extremely complex to actually implement:
A crypto merger would create a whole new set of assets, sparking fears of inflation. In effect, the union would resemble a hard fork of two blockchains. In the case of Ethereum, the new blockchain would use the technology of both chains, and the merged coin would use Ethereum’s proof-of-stake technology combined with the ZK Snarks technology of ZCash (ZEC).
A similar thing has been attempted several times with ZClassic (ZCL), creating assets that merge Bitcoin’s qualities with the transaction veiling technique of the original asset, ZCash. That type of hard fork created a third asset but did not unite the Bitcoin and the ZClassic communities, the only attractive thing proving the free airdrop of coins.
Blockchains are also generally competitive, with many speaking of “killing” older rivals and ruling the market unchallenged. Bitcoin supporters believe there is need for only one asset with one blockchain, while altcoins fight to displace leading coins. Ripple’s XRP has also put forward the idea it can exist as the sole blockchain and handle all transactions.
A solution similar to a merger happened earlier this year for OmiseGo (OMG) and the Cosmos project, where OMG would get additional services for its side chains from Cosmos. Another event close to a merger was the combined mining of Litecoin (LTC) and DogeCoin (DOGE).
Despite such attempts, blockchains continue to compete for a place in the sun. In general, some show the option of partnerships through atomic swaps although the technology has not yet achieved mass adoption.