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https://www.productionai.institute/graph/events/evt-aiid-1074

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Production AI Institute public record · AI Incident Database: Citation Errors in Concord Music v. Anthropic Attributed to Claude AI Use by Defense Counsel · observed 2025-06-13
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AI Incident Database: Citation Errors in Concord Music v. Anthropic Attributed to Claude AI Use by Defense Counsel

In a legal filing in Universal Music Group et al. v. Anthropic, lawyers for Anthropic acknowledged that expert witness testimony submitted in the case contained erroneous citations generated by the company's Claude AI system. The filing stated that the inaccuracies, which included incorrect article titles and author names, were not caught during manual review. Anthropic characterized the issue as an honest mistake and apologized in court.

AI Incident Database · Incident 1074

Operator lens (medium): inspect D2 (output validation), D6 (autonomy oversight).

Confidence
82%
Sources
3
Entities
12
Detected
detected 400d ago

Event summary

In a legal filing in Universal Music Group et al. v. Anthropic, lawyers for Anthropic acknowledged that expert witness testimony submitted in the case contained erroneous citations generated by the company's Claude AI system. The filing stated that the inaccuracies, which included incorrect article titles and author names, were not caught during manual review. Anthropic characterized the issue as an honest mistake and apologized in court.

D2D6

Linked entities

  • Anthropic

    vendor | 70%

  • judicial-integrity

    organisation | 70%

  • ivana-dukanovic

    organisation | 70%

  • brittany-n.-lovejoy

    organisation | 70%

  • joseph-r.-wetzel

    organisation | 70%

  • andrew-m.-gass

    organisation | 70%

  • allison-l.-stillman

    organisation | 70%

  • sarang-v.-damle

    organisation | 70%

  • sara-e.-sampoli

    organisation | 70%

  • rachel-s.-horn

    organisation | 70%

  • latham-and-watkins-llp

    organisation | 70%

  • judicial-system

    organisation | 70%

Related graph edges

EdgeTypeConfidence
ent-vendor-anthropic to ent-psf-d1maps to60%
ent-vendor-anthropic to ent-psf-d1maps to60%
ent-vendor-anthropic to ent-psf-d1maps to60%
ent-vendor-anthropic to ent-psf-d2maps to60%
ent-vendor-anthropic to ent-psf-d2maps to60%
ent-vendor-anthropic to ent-psf-d2maps to60%
ent-vendor-anthropic to ent-psf-d6maps to60%
ent-vendor-anthropic to ent-psf-d6maps to60%
ent-vendor-anthropic to ent-psf-d6maps to60%
ent-vendor-anthropic to ent-psf-d7maps to60%
ent-vendor-anthropic to ent-psf-d7maps to60%
ent-vendor-anthropic to ent-psf-d7maps to60%

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Event dates

  • Happened 15 May 2025

  • Detected 13 June 2025

Sources

  • AI Incident Database - Incident 1074

    secondary | checked 9 July 2026

    Open source
  • Anthropic’s lawyer was forced to apologize after Claude hallucinated a legal citation

    secondary | checked 17 May 2025

    Open source
  • Anthropic's lawyers take blame for AI 'hallucination' in music publishers' lawsuit

    primary | checked 1 June 2025

    Open source
Cite this record

"AI Incident Database: Citation Errors in Concord Music v. Anthropic Attributed to Claude AI Use by Defense Counsel." https://www.productionai.institute/graph/events/evt-aiid-1074 (observed 2025-05-15; retrieved 2026-07-18). PAI.

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