During a Twitter space hosted by Bitcoin developer Udi Wertheimer, Ethereum co-founder Vitalik Buterin suggested that Bitcoin needs scalable solutions like zero-knowledge (ZK) rollups to become more than just a payment network. ZK-rollup chains are off-chain protocols that operate on top of the Ethereum blockchain and offer a more scalable and faster way to verify transactions without sharing critical user information.
Buterin cited successful examples of "rollups" like Optimism and Arbitrum that could be looked at as case studies for Bitcoin. He also praised the rise of Bitcoin Ordinals, the latest layer-2 solution enabling decentralized storage of digital art on the Bitcoin blockchain, for bringing back the builder culture into the Bitcoin ecosystem.
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