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Uniswap (UNI) Founder Apologized for Attempt to Take Down v4 Fork

Sat, 08/05/2023 - 12:52
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Vladislav Sopov
Uniswap (UNI), most popular multi-blockchain decentralized crypto exchange, tried to delete code of its fork from GitHub open-source development platform
Uniswap (UNI) Founder Apologized for Attempt to Take Down v4 Fork
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Ethereum (ETH) veteran Pascal Marco Caversaccio shared details of his open-source Uniswap v4 fork being one step away from a DMCA takedown. Uniswap (UNI) founder Hayden Adams admitted that this attack was "unnecessary" — here's why.

Copyright wars in open-source DeFi: Who is able to fork Uniswap v4?

Caversaccio, a long-term contributor to the EVM ecosystem, announced yesterday, Aug. 4, 2023, that the Uniswap (UNI) team attempted to take down the fork of its v4 version published on GitHub. The developer added that he only opened this pull request to change the license status of the code to "Affero General Public License" with no plans of commercial usage.

This move was necessary to make Uniswap (UNI) truly open source as its license should allow everyone to commit to its code base without limitations:

It should be the logical consequence for Uniswap to use a proper open-source license, as introduced in this PR, in particular since you invite others to contribute for free! Otherwise, your open-source claim is just simply a meme

By printing time, this idea scored support of over 300 Ethereum (ETH) developers on GitHub.

However, Uniswap Labs representatives initiated a DMCA report to the GitHub team and stressed that the action by Caversaccio should be considered a copyright infringement. He only had seven days to remove the Uniswap v4 fork from his repository.

Uniswap (UNI) Releases New Code Draft, Here's What Changed

It should also be noted that yesterday, Polygon Labs accused zkSync of copying a large portion of Polygon's SNARK Plonky2 code base in the Boojum upgrade.

"Takedown was unnecessary," Uniswap (UNI) founder says

The Ethereum (ETH) community was enraged by the action of Uniswap Labs. Rotki app founder Lefteris Karapetsas stressed that simply publishing code cannot violate any type of license:

FYI, opening a PR to your repo does not violate either the BUSL, the AGPL or any other license

Today, Aug. 5, 2023, the Uniswap (UNI) founder Hayden Adams responded to the accusations. He apologized for the actions of his team and admitted that taking down the Uniswap v4 fork was unnecessary.

Agree the takedown was unnecessary considering its just a github PR and not in production. Was not aware until I saw this tweet, but quickly dug in and we will be withdrawing the takedown / agree it was a mistake. Sorry about that

The status of the Uniswap (UNI) software license caused debates in the crypto community. Ripple CTO David Schwartz highlighted that with a BSL license the project cannot be considered decentralized.

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About the author

Blockchain Analyst & Writer with scientific background. 6+ years in IT-analytics, 3+ years in blockchain.

Worked in independent analysis as well as in start-ups (, Monoreto, Attic Lab etc.)