Anthropic Authors’ & Publishers’ Rights Class Action – Author Contact Page

Authors’ & Publishers’ Contact Information Intake Page

What is this lawsuit about?

Bartz v. Anthropic PBC is a class action lawsuit under the Copyright Act brought by authors on behalf of copyright holders against Anthropic PBC, an AI company. The Class of copyright holders — consisting of authors and publishers – claims that Anthropic took books from pirate websites Library Genesis (“LibGen”) and Pirate Library Mirror (“PiLiMi”) without authorization.

The Court certified a LibGen & PiLiMi Pirated Books Class made up of all legal or beneficial owners of the exclusive right to reproduce any ISBN- or ASIN-bearing book that Anthropic copied from the two pirate sites. On August 26, 2025, the parties notified the Court that they had reached a settlement in principle on behalf of the Class, and will file a Settlement Agreement with the Court on September 5, 2025. Judge Alsup set a hearing on Plaintiffs’ forthcoming motion for preliminary approval on September 8, 2025, at noon in San Francisco, CA.

Why We Are Collecting Your Information

The Federal Rules governing class actions require the best notice practicable. To accomplish this, we are collecting mailing addresses and e-mail contacts for as many authors and publishers as possible. This webpage is not the official court-approved notice. It is a voluntary tool to submit your preferred contact information so we can ensure you receive the formal notice when it is sent if you are a member of the Class.

Submitting your information here does not make you a member of the Class. But, if you are a member of the class, submitting your information will help us direct formal notice of the class action at the appropriate time.

What Happens When You Submit Your Information

Your name, mailing address, and e-mail will be stored on a secure database maintained by Plaintiffs’ counsel.
The information will be used only for providing court-authorized notices and other case-related communications.
• It will not be shared publicly. Submitting your information does not make you a client of Plaintiffs’ counsel and does not affect your legal rights in any way.

Confidentiality Assurance

The contact information you provide will never be sold or used for marketing.

Ready to Provide Your Contact Information?

If you believe Anthropic may have downloaded your book(s) from LibGen or PiLiMi, please complete the secure form below. If you have more than one copyrighted book, please list each one in the field below. Authors or publishers who reside outside of the United States should provide their full international address, exactly as it should appear on mail sent to you.