Anthropic apologizes after one of its expert witnesses cited a fake article hallucinated by Claude in the company's legal battle with music publishers
Anthropic apologizes after one of its expert witnesses cited a fake article hallucinated by Claude in the company's legal battle with music publishers

Anthropic’s attorney from Latham: fictitious source was “an honest mistake” due to Latham’s using Claude to format the citations.

This should be cause for contempt. This isn't much worse, IMO, than a legal briefing mentioning, "as affirmed in the case of Pee-pee v.s Poo-poo." They're basically taking a shit on the process by not verifying their arguments.
https://arstechnica.com/tech-policy/2025/05/dont-watermark-your-legal-pdfs-with-purple-dragons-in-suits/
Lmao
My best guess is that the judge was more annoyed by the fact that the briefs were all printed out on a shitty black and white laser printer, and the watermark was just wasting toner and making it harder to read without glasses. It could also be a complaint about the file size, because watermarking every page means you’re sending that image on every single page of the pdf. No reason to turn a 150KB text file into a 30MB file, especially when the latter is too large to attach to an email.
There are also some judges that just have a stick up their ass about respecting the sanctity of the court. But there are valid arguments besides “respect mah authoritah”.