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What Are Ethereum Rollups? A Scaling Solution to Cut Transaction Costs - Decrypt

decrypt.co · 839 words · saved by 1 readers

Rollups cut down on Ethereum blockchain transaction costs by "rolling up" batches of transactions into a single one. Here’s how they work.

In brief Ethereum rollups "roll up" a bunch of transactions into one. They come in two basic forms: optimistic rollups and zero-knowledge rollups. Even after the latest crypto crash, Ethereum remains expensive for many to use. That’s because the Ethereum blockchain is slow and has maxed out its capacity. Now you must pay through the nose for every additional byte of block space if you are to buy the next "must-have" NFT. Until "Ethereum 2.0," the next generation of the Ethereum blockchain, resolves all of these issues, the community must rely on so-called scaling solutions: technology…

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