Matter Labs denies plagiarizing code, says source noted at top of relevant files

Odaily Planet Daily News Ethereum expansion company Polygon said in a tweet on Thursday that Matter Labs, the developer of zkSync rollup, copied some of Polygon's open source code, but did not provide attribution information. Matter Labs has denied the allegations, saying a line at the top of one of the related documents is "clearly attributable." A Matter Labs spokesperson stated that Polygon’s article contained “untrue claims” that “the new Boojum high-performance proof system utilizes 5% of Plonky2,” which is clearly indicated in the first line of our module. In a screenshot of a Matter Labs file called "mod.rs," Polygon said the file "does not credit the original author." Matter Labs CEO Alex Gluchowski linked to the same document in a tweet. The first line of the mod.rs file (not included in Polygon's screenshot) reads: "Note: We take the Plonky2 implementation of non-vectorized fields as a baseline. Louis Guthmann, head of the Starkware ecosystem, expressed his disappointment with Matter Labs: "The allegations are serious. Respect for licensing, and more importantly, honesty and clear attribution are the soul of open source." (CoinDesk)