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OP_CAT: The Missing Piece for BTC L2s?

This opcode has everyone talking; what does it do?
OP_CAT: The Missing Piece for BTC L2s?
William M. Peaster William M. Peaster
Jun 19, 2024 • 3 min read
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Bitcoin Layer 2s are the talk of the town, but not much of their promise has been realized yet.

What are Bitcoin's builders waiting for? One significant proposal could help mature the Bitcoin L2 landscape: the reintroduction of OP_CAT. This opcode, which was disabled early in Bitcoin's history, could unlock new capabilities and pave the way for more sophisticated and trustless Bitcoin L2 solutions.

Let's dig into why this opcode could be so transformative for BTC 👇

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OP_CAT: The Missing Piece for BTC L2s?
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Bitcoin Layer 2s Bitcoin Layer 2s Bitcoin Bitcoin
William M. Peaster

Written by William M. Peaster

880 Articles • View all      

William M. Peaster, Senior Writer, has been with Bankless since January 2021. Immersed in Ethereum since 2017, he writes the Metaversal newsletter on the onchain frontier, covering everything from AI projects to crypto games, as the team’s lead NFT analyst. With a background in creative writing, he writes fiction and publishes art on Ethereum in his free time.

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