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Matter Labs created zkSync, a trustless scaling solution for Ethereum powered by ZK-Rollup technology. If you've been transacting on Ethereum lately, then you already know how congested the network has become and how expensive the gas fees are. Layer-2 solutions like zkSync are crucial to fixing these issues.

StarkWare blockchain service improves scalability and privacy in blockchains using STARK technology which involves ZK-Starks, StarkEx, and StarkNet. Their contribution is much needed when it comes to fixing the high gas costs on Ethereum that plagues its users. You may already be familiar with SNARKs and ZK-SNARKs, but this article looks at StarkWare and STARKs, along with ZK-STARKs.

Scalability has been an issue related to the Ethereum blockchain for years, so the next time you hear terms like Sidechains, Plasma, Channels, or Rollups, you’ll no longer have to wonder what they mean. These are all proposed solutions to help Ethereum scale. Moreover, so-called Layer-2 solutions are widely seen as potentially holding the keys to helping Ethereum to scale and reduce Ethereum gas fees.

Ethereum 2.0 will trigger a seismic shift in the crypto space. Some of the changes that this upgrade is going to trigger are: The transition to Casper protocol Sharding Raiden state channels Plasma Raiden and Plasma are layer-2 protocols that allow Ethereum to conduct thousands of transactions off-chain in the form of state channels and side chains. Plasma, in particular, can theoretically allow a side chain to process thousands of transactions and commit just one single hash to the main Ethereum blockchain. While this sounds pretty amazing on paper, there is a significant problem here. If there is some dispute in one of these side plasma chains, there isn’t a proper mechanism that the users can use to exit the protocol efficiently.

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