Mintvest Capital, LTD v. NYDIG Trust Company, et al.
D. Puerto Rico · Jun 23, 2025
- Jurisdiction
- federal
- Court
- D. Puerto Rico
- Record ID
- mintvest-capital-ltd-v-nydig-trust-company-et-al-2025-06-23
- Observed outcome
- The court recommended that the motion for sanctions be granted and that counsel be ordered to pay the defendants' reasonable attorney's fees.
- Known monetary consequence
- $1
Why this matter warrants attention
The court recommended Rule 11 sanctions against plaintiff's counsel for submitting filings containing fabricated case law and false quotations generated by the AI tool 'Claude'. The court recommended that counsel be ordered to pay the defendants' reasonable attorney's fees incurred due to the necessity of addressing these erroneous submissions.
The court reasoned that counsel violated Rule 11(b)(2) by failing to ensure legal contentions were warranted by existing law. The court determined that while 28 U.S.C. § 1927 was inapplicable due to a lack of 'vexatious' intent, Rule 11 sanctions were appropriate to deter future conduct and compensate the opposing party for losses sustained due to the submission of non-existent and misleading authorities.
Claude, ChatGPT, or any LLM still requires independent Westlaw verification — Rule 11 does not care which brand hallucinated.
Failure modes and consequences
- Fake Citations
- Fabricated Quotes
- Misrepresented Authority
- Contract
- Trial
- Monetary
- AI attribution
- Admitted
- Recorded tool
- Claude
- Known monetary consequence
- $1
- Procedural posture
- Report and Recommendation on a motion for sanctions following a Show Cause Hearing.
Damien Charlotin case archive
Publisher document archive. The recorded document is hosted in the upstream publisher archive.
Open underlying sourceA recorded source link is not a substitute for checking the underlying order, filing, opinion, or disciplinary record.
What this record does—and does not—establish
Counsel admitted using Claude for legal research.
The record summarizes the outcome described in the linked public source. The recorded document is hosted in the upstream publisher archive. This page is not a substitute for the complete docket, subsequent history, or jurisdiction-specific advice.
Latest evidence review: Primary Document Verified (high confidence).
Controls suggested by the public record
- Verify the existence, citation, court, and precedential status of every authority before filing.
- Compare every quoted passage and pincite directly with the underlying opinion or filing.
- Confirm that each authority supports the stated proposition and has not been mischaracterized.
- Escalate unresolved verification failures before filing and preserve the responsible reviewer's signoff record.