Probing Stylistic Appropriation using Large Language Models: An Evaluation Framework for Copyright Infringement under EU Law
Pith reviewed 2026-07-01 06:07 UTC · model grok-4.3
The pith
Fine-tuning large language models on literary texts induces stylistic appropriation that extends to narrative patterns and persists after unlearning.
A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.
Core claim
Fine-tuning induces systematic stylistic appropriation across all infringement-relevant dimensions, extending beyond verbatim memorisation to abstract narrative patterns. Negative Preference Optimisation unlearning substantially reduces similarity but leaves detectable residual stylistic patterns. Instruction-tuned models exhibit non-trivial baseline stylistic similarity prior to corpus exposure.
What carries the argument
PSALM, an LLM-as-a-judge framework operationalising EU copyright doctrine through ten evaluators for computational overlap, stylistic dimensions like writing style and narrative voice, content dimensions like character and plot, and statutory exceptions.
Load-bearing premise
The ten LLM-as-a-judge evaluators validly operationalize the EU legal standard of substantial similarity for stylistic choices, narrative structure, and creative elaboration.
What would settle it
Legal experts determining that models with high PSALM similarity scores produce outputs that do not meet the threshold for copyright infringement under EU law, or that low scores still infringe.
read the original abstract
Large language models (LLM) trained on web-scale corpora generate output that may infringe copyright, yet existing technical safeguards focus narrowly on verbatim memorisation. EU copyright doctrine applies a broader standards: substantial similarity, which extends to stylistic choices, narrative structure, and creative elaboration. This mismatch between what current methods detect and what the law protects leaves a significant compliance gap. We introduce PSALM, an LLM-as-a-judge framework that operationalises EU copyright doctrine through ten evaluators assessing computational overlap, stylistic dimensions (writing style, narrative voice), content dimensions (character, plot, scene, world building), and statutory exceptions (parody, pastiche, quotation, sc\`enes \`a faire). Applying PSALM to Llama~3.2 models fine-tuned on translated historical Dutch literary works, we find that: 1) instruction-tuned models exhibit non-trivial baseline stylistic similarity prior to corpus exposure; 2) fine-tuning induces systematic stylistic appropriation across all infringement-relevant dimensions, extending beyond verbatim memorisation to abstract narrative patterns; 3) Negative Preference Optimisation unlearning substantially reduces similarity but leaves detectable residual stylistic patterns. These findings indicate that safeguards targeting literal copying alone are insufficient to mitigate broader copyright risks. PSALM provides infrastructure for auditable, legally informed compliance evaluation, though the relationship between automated similarity scores and infringement determinations requires validation by legal experts. This work bridges qualitative legal standards and quantitative technical measurement, exposing fundamental tensions between generative AI and EU intellectual property law.
Editorial analysis
A structured set of objections, weighed in public.
Referee Report
Summary. The paper introduces PSALM, an LLM-as-a-judge framework with ten evaluators that operationalize EU copyright's substantial similarity standard (covering computational overlap, stylistic dimensions like writing style and narrative voice, content dimensions like character/plot/scene/world-building, and statutory exceptions like parody/pastiche). Applied to Llama 3.2 models fine-tuned on translated historical Dutch literary works, it reports that instruction-tuned models show baseline stylistic similarity, fine-tuning induces systematic appropriation across infringement-relevant dimensions beyond verbatim memorization, and Negative Preference Optimisation unlearning reduces similarity but leaves residual stylistic patterns. The work concludes that literal-copying safeguards are insufficient and positions PSALM as infrastructure for auditable compliance evaluation, while noting that automated scores require legal-expert validation.
Significance. If the PSALM evaluators prove to be a reliable proxy for EU substantial-similarity doctrine, the framework would supply a concrete, quantitative bridge between technical similarity metrics and legal risk assessment for generative models, exposing limitations of verbatim-focused unlearning methods and providing an auditable evaluation tool. The explicit acknowledgment that scores need legal validation is a strength in framing the contribution as infrastructure rather than a definitive legal finding.
major comments (2)
- [Abstract] Abstract, findings 2 and 3: the claims that fine-tuning 'induces systematic stylistic appropriation across all infringement-relevant dimensions' and that NPO 'leaves detectable residual stylistic patterns' rest on PSALM scores serving as a valid operationalization of the EU substantial-similarity standard (including non-literal stylistic choices and narrative structure). The abstract itself states that 'the relationship between automated similarity scores and infringement determinations requires validation by legal experts,' yet no calibration against case law, inter-rater agreement with lawyers, or mapping of the ten evaluators to precedents is described. This is load-bearing for the central compliance-gap conclusion.
- [Abstract] Abstract: no implementation details, aggregation method, error bars, baseline comparisons, or validation of the ten specific evaluators against legal standards are provided, making it impossible to assess whether the reported similarity increases are robust or sensitive to post-hoc choices in the framework.
minor comments (2)
- [Abstract] Abstract: the corpus ('translated historical Dutch literary works') is not characterized by size, selection criteria, or translation quality, which affects reproducibility of the fine-tuning experiments.
- [Abstract] Abstract: the ten evaluators are listed by dimension but their exact prompting, scoring scales, and aggregation procedure are not specified, hindering assessment of the framework's internal consistency.
Simulated Author's Rebuttal
We thank the referee for the constructive feedback highlighting key aspects of our framing and presentation. We address each major comment below, with revisions where feasible within the paper's scope as a technical framework.
read point-by-point responses
-
Referee: [Abstract] Abstract, findings 2 and 3: the claims that fine-tuning 'induces systematic stylistic appropriation across all infringement-relevant dimensions' and that NPO 'leaves detectable residual stylistic patterns' rest on PSALM scores serving as a valid operationalization of the EU substantial-similarity standard (including non-literal stylistic choices and narrative structure). The abstract itself states that 'the relationship between automated similarity scores and infringement determinations requires validation by legal experts,' yet no calibration against case law, inter-rater agreement with lawyers, or mapping of the ten evaluators to precedents is described. This is load-bearing for the central compliance-gap conclusion.
Authors: We agree the claims depend on PSALM operationalizing substantial similarity and have already flagged in the abstract that automated scores require legal-expert validation. The manuscript contains no calibration to case law, lawyer inter-rater agreement, or explicit precedent mapping, as these steps demand dedicated legal scholarship and empirical studies beyond our technical contribution. We present PSALM explicitly as infrastructure to support such validation rather than a completed legal instrument. We will expand the limitations and future-work sections to underscore this gap and the provisional nature of the compliance-gap conclusion. revision: partial
-
Referee: [Abstract] Abstract: no implementation details, aggregation method, error bars, baseline comparisons, or validation of the ten specific evaluators against legal standards are provided, making it impossible to assess whether the reported similarity increases are robust or sensitive to post-hoc choices in the framework.
Authors: The abstract is intentionally concise. Full implementation details for the ten evaluators, the aggregation procedure (per-dimension means with overall score), error bars from repeated sampling, baseline comparisons, and robustness checks appear in the Methods and Results sections. We will revise the abstract to add a brief clause directing readers to these sections and the evaluation protocol for assessing robustness. revision: yes
- Calibration of PSALM evaluators against EU case law, inter-rater agreement with legal experts, or direct mapping to precedents
Circularity Check
No circularity: PSALM is a novel framework whose application produces independent empirical outputs
full rationale
The paper introduces PSALM as a new LLM-as-a-judge framework with ten evaluators that operationalize EU copyright standards. Reported results on baseline similarity, fine-tuning effects, and NPO residuals are presented as direct measurements obtained by applying this framework to Llama 3.2 models on translated Dutch literary works. The abstract contains no equations, fitted parameters, or self-citations that reduce any claimed prediction or similarity score to an input by construction. The paper explicitly notes that automated scores require separate validation by legal experts, so the derivation chain does not equate framework outputs with legal determinations. No self-definitional, fitted-input, or self-citation patterns appear in the provided text.
Axiom & Free-Parameter Ledger
axioms (1)
- domain assumption LLM-as-a-judge evaluators can operationalize and quantify EU copyright concepts of substantial similarity including stylistic and narrative dimensions
invented entities (1)
-
PSALM framework with its ten specific evaluators
no independent evidence
Reference graph
Works this paper leans on
-
[1]
Porter , year =
Abbott, H. Porter , year =. The
-
[2]
2025 , month =
Case C‑590/23, CG and YN v Pelham GmbH and Others , author =. 2025 , month =
2025
-
[3]
Official Journal of the European Union , address =
Regulation (EU) 2024/1689 of 13 June 2024 laying down harmonised rules on artificial intelligence (Artificial Intelligence Act) , author =. Official Journal of the European Union , address =. 2024 , month =
2024
-
[4]
2025 , booktitle =
Soft Prompting for Unlearning in Large Language Models , author =. 2025 , booktitle =
2025
-
[5]
1988 , journal =
Adverbial stance types in English , author =. 1988 , journal =
1988
-
[6]
The KL3M Data Project: Copyright-Clean Training Resources for Large Language Models , author =. arXiv , url =. 2025 , month =. 2504.07854 , archiveprefix =
-
[7]
1961 , publisher =
The Rhetoric of Fiction , author =. 1961 , publisher =
1961
-
[8]
2012 , publisher =
Film Art: An Introduction , author =. 2012 , publisher =
2012
-
[9]
The Development of Generative Artificial Intelligence from a Copyright Perspective , author =. 2025 , month =. doi:10.2814/3893780 , isbn =
-
[10]
2021 , booktitle =
Extracting Training Data from Large Language Models , author =. 2021 , booktitle =
2021
-
[11]
Official Journal of the European Union , address =
Directive (EU) 2019/790 of the European Parliament and of the Council of 17 April 2019 on copyright and related rights in the Digital Single Market and amending Directives 96/9/EC and 2001/29/EC , author =. Official Journal of the European Union , address =. 2019 , month =
2019
-
[12]
1990 , publisher =
Coming to Terms: The Rhetoric of Narrative in Fiction and Film , author =. 1990 , publisher =
1990
-
[13]
Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing , publisher =
Chen, Tong and Asai, Akari and Mireshghallah, Niloofar and Min, Sewon and Grimmelmann, James and Choi, Yejin and Hajishirzi, Hannaneh and Zettlemoyer, Luke and Koh, Pang Wei , year =. Proceedings of the 2024 Conference on Empirical Methods in Natural Language Processing , publisher =. doi:10.18653/v1/2024.emnlp-main.844 , url =
-
[14]
Can Large Language Models Be an Alternative to Human Evaluations?
Chiang, Cheng-Han and Lee, Hung-yi. Can Large Language Models Be an Alternative to Human Evaluations?. Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2023
2023
-
[15]
Certified Machine Unlearning via Noisy Stochastic Gradient Descent , url =
Chien, Eli and Wang, Haoyu and Chen, Ziang and Li, Pan , booktitle =. Certified Machine Unlearning via Noisy Stochastic Gradient Descent , url =. doi:10.52202/079017-1228 , editor =
-
[16]
Proceedings of the 28th Conference on Computational Natural Language Learning , publisher =
Chun, Jon , year =. Proceedings of the 28th Conference on Computational Natural Language Learning , publisher =. doi:10.18653/v1/2024.conll-1.13 , url =
-
[17]
2019 , note =
Funke Medien NRW GmbH (. 2019 , note =
2019
-
[18]
Extracting memorized pieces of (copyrighted) books from open-weight language models
Extracting Memorized Pieces of (Copyrighted) Books from Open-Weight Language Models , author =. arXiv , volume =. 2025 , month =. doi:10.48550/arXiv.2505.12546 , url =. 2505.12546 , archiveprefix =
work page internal anchor Pith review Pith/arXiv arXiv doi:10.48550/arxiv.2505.12546 2025
-
[19]
2019 , month =
Case C-683/17, Cofemel – Sociedade de Vestu\'. 2019 , month =
2019
-
[20]
, author =
Case C‑201/13, Johan Deckmyn and Vrijheidsfonds VZW v Helena Vandersteen and Others. , author =. 2014 , month =
2014
-
[21]
2009 , month =
Case C-5/08, Infopaq International A/S v Danske Dagblades Forening , author =. 2009 , month =
2009
-
[22]
2024 , month =
Germany -- Hamburg District Court, 310 O 227/23, Robert Kneschke v. 2024 , month =
2024
-
[23]
2024 , eprint=
Chatlaw: A Multi-Agent Collaborative Legal Assistant with Knowledge Graph Enhanced Mixture-of-Experts Large Language Model , author=. 2024 , eprint=
2024
-
[24]
2010 , publisher =
The Technique of Film and Video Editing: History, Theory, and Practice , author =. 2010 , publisher =
2010
-
[25]
Collectie publiek domein - DBNL , author =
-
[26]
UNDIAL : Self-Distillation with Adjusted Logits for Robust Unlearning in Large Language Models
Dong, Yijiang River and Lin, Hongzhou and Belkin, Mikhail and Huerta, Ramon and Vuli \'c , Ivan. UNDIAL : Self-Distillation with Adjusted Logits for Robust Unlearning in Large Language Models. Proceedings of the 2025 Conference of the Nations of the Americas Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: L...
2025
-
[27]
2013 , publisher =
Here Be Dragons: Exploring Fantasy Maps and Settings , author =. 2013 , publisher =
2013
-
[28]
Official Journal of the European Union , url =
REPORT on copyright and generative artificial intelligence – opportunities and challenges , author =. Official Journal of the European Union , url =. 2026 , month =
2026
-
[29]
The Erasure Illusion: Stress-Testing the Generalization of LLM Forgetting Evaluation , author =. 2025 , url =. 2512.19025 , archiveprefix =
-
[30]
Official Journal of the European Union , address =
Directive 2001/29/EC of the European Parliament and of the Council of 22 May 2001 on the harmonisation of certain aspects of copyright and related rights in the information society , author =. Official Journal of the European Union , address =. 2001 , month =
2001
-
[31]
1996 , publisher =
Towards a `Natural' Narratology , author =. 1996 , publisher =
1996
-
[32]
2007 , publisher =
Text World Theory: An Introduction , author =. 2007 , publisher =
2007
-
[33]
The GEM Benchmark: Natural Language Generation, its Evaluation and Metrics
Gehrmann, Sebastian and Adewumi, Tosin and Aggarwal, Karmanya and Ammanamanchi, Pawan Sasanka and Aremu, Anuoluwapo and Bosselut, Antoine and Chandu, Khyathi Raghavi and Clinciu, Miruna-Adriana and Das, Dipanjan and Dhole, Kaustubh and Du, Wanyu and Durmus, Esin and Du s ek, Ond r ej and Emezue, Chris Chinenye and Gangal, Varun and Garbacea, Cristina and ...
-
[34]
The three-step test revisited: How to use the test's flexibility in national copyright law , author =. 2014 , journal =. doi:10.2139/ssrn.2356619
-
[35]
1980 , publisher =
Narrative Discourse: An Essay in Method , author =. 1980 , publisher =
1980
-
[36]
LAION , author =
Technical Challenges of Rightsholders' Opt-out From Gen AI Training after Robert Kneschke v. LAION , author =. Journal of Intellectual Property, Information Technology and Electronic Commerce Law , volume =. 2025 , month =
2025
-
[37]
Routledge Encyclopedia of Narrative Theory , year =
-
[38]
Journal of Literary Theory , publisher =
Revisiting Style, a Key Concept in Literary Studies , author =. Journal of Literary Theory , publisher =. 2015 , month =. doi:10.1515/jlt-2015-0003 , issn =
-
[39]
Universal City Studios, Inc
Hoehling v. Universal City Studios, Inc. , author =. 1980 , url =
1980
-
[40]
Prose Rhythm: A Theory of Proportional Distribution , author =. 1973 , journal =. doi:10.58680/ccc197317628 , url =
-
[41]
Preventing Generation of Verbatim Memorization in Language Models Gives a False Sense of Privacy
Ippolito, Daphne and Tramer, Florian and Nasr, Milad and Zhang, Chiyuan and Jagielski, Matthew and Lee, Katherine and Choquette Choo, Christopher and Carlini, Nicholas. Preventing Generation of Verbatim Memorization in Language Models Gives a False Sense of Privacy. Proceedings of the 16th International Natural Language Generation Conference. 2023. doi:10...
-
[42]
Ji, Jiabao and Liu, Yujian and Zhang, Yang and Liu, Gaowen and Kompella, Ramana Rao and Liu, Sijia and Chang, Shiyu , booktitle =. Reversing the Forget-Retain Objectives: An Efficient LLM Unlearning Framework from Logit Difference , url =. doi:10.52202/079017-0400 , editor =
-
[43]
RWKU: Benchmarking Real-World Knowledge Unlearning for Large Language Models , url =
jin, Zhuoran and Cao, Pengfei and Wang, Chenhao and He, Zhitao and Yuan, Hongbang and Li, Jiachun and Chen, Yubo and Liu, Kang and Zhao, Jun , booktitle =. RWKU: Benchmarking Real-World Knowledge Unlearning for Large Language Models , url =. doi:10.52202/079017-3117 , editor =
-
[44]
Foundations and Trends in Information Retrieval , volume =
Juola, Patrick , title =. Foundations and Trends in Information Retrieval , volume =. 2008 , month =. doi:10.1561/1500000005 , url =
-
[45]
Justiz Bayern , url =
Urteil GEMA gegen Open AI , author =. Justiz Bayern , url =. 2025 , month =
2025
-
[46]
Proceedings of the 39th International Conference on Machine Learning , pages =
Deduplicating Training Data Mitigates Privacy Risks in Language Models , author =. Proceedings of the 39th International Conference on Machine Learning , pages =. 2022 , editor =
2022
-
[47]
Katz, Daniel Martin and Bommarito, Michael James and Gao, Shang and Arredondo, Pablo , title =. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences , volume =. 2024 , month =. doi:10.1098/rsta.2023.0254 , url =
-
[48]
2015 , publisher =
A Practical Approach to Licensing Motion Pictures, Video, and Other Audiovisual Works , author =. 2015 , publisher =
2015
-
[49]
Deduplicating Training Data Makes Language Models Better
Lee, Katherine and Ippolito, Daphne and Nystrom, Andrew and Zhang, Chiyuan and Eck, Douglas and Callison-Burch, Chris and Carlini, Nicholas. Deduplicating Training Data Makes Language Models Better. Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers). 2022. doi:10.18653/v1/2022.acl-long.577
-
[50]
2025 , address =
Generative AI and Copyright: Training, Creation, Regulation , author =. 2025 , address =
2025
-
[51]
TOFU: A Task of Fictitious Unlearning for LLMs
TOFU: A Task of Fictitious Unlearning for LLMs , author =. arXiv , url =. 2024 , month =. 2401.06121 , archiveprefix =
work page internal anchor Pith review Pith/arXiv arXiv 2024
-
[52]
GRUR International , publisher =
A Deeper Look into the EU Text and Data Mining Exceptions: Harmonisation, Data Ownership, and the Future of Technology , author =. GRUR International , publisher =. 2022 , month =. doi:10.1093/grurint/ikac054 , issn =
-
[53]
1997 , publisher =
Story: Substance, Structure, Style and the Principles of Screenwriting , author =. 1997 , publisher =
1997
-
[54]
Universal Pictures Corp
Nichols v. Universal Pictures Corp. , author =. 1930 , url =
1930
-
[55]
Why We Need New Evaluation Metrics for NLG
Novikova, Jekaterina and Du s ek, Ond r ej and Cercas Curry, Amanda and Rieser, Verena. Why We Need New Evaluation Metrics for NLG. Proceedings of the 2017 Conference on Empirical Methods in Natural Language Processing. 2017. doi:10.18653/v1/D17-1238
-
[56]
2004 , publisher =
Fictional Minds , author =. 2004 , publisher =
2004
-
[57]
2005 , publisher =
Living to Tell about It: A Rhetoric and Ethics of Character Narration , author =. 2005 , publisher =
2005
-
[58]
Computer Law & Security Review , publisher =
Generative AI, copyright and the AI Act , author =. Computer Law & Security Review , publisher =. 2025 , month =. doi:10.1016/j.clsr.2025.106107 , issn =
-
[59]
The pastiche exception after
Rendas, Tito , year =. The pastiche exception after. European Intellectual Property Review , volume =
-
[60]
01 Originality in EU Copyright Full Harmonization through Case Law
Chapter 3: Originality in a work, or a work of originality: The effects of the Infopaq decision: Full Harmonization through Case Law. 01 Originality in EU Copyright Full Harmonization through Case Law. 2013. doi:10.4337/9781782548942.00013
-
[61]
Obliviate: Efficient Unmemorization for Protecting Intellectual Property in Large Language Models , author =. arXiv , doi =. 2025 , month =. 2502.15010 , archiveprefix =
-
[62]
2007 , booktitle =
Toward a definition of narrative , author =. 2007 , booktitle =
2007
-
[63]
and Mohankumar, Akash Kumar and Khapra, Mitesh M
Sai, Ananya B. and Mohankumar, Akash Kumar and Khapra, Mitesh M. , title =. 2022 , issue_date =. doi:10.1145/3485766 , journal =
-
[64]
Copyright Infringement by Large Language Models in the
Scharrenberg, Noah and Sun, Chang , year =. Copyright Infringement by Large Language Models in the. Proceedings of the Natural Legal Language Processing Workshop 2025 , publisher =
2025
-
[65]
Metro-Goldwyn Pictures Corp
Sheldon v. Metro-Goldwyn Pictures Corp. , author =. 1936 , url =
1936
-
[66]
MUSE: Machine Unlearning Six-Way Evaluation for Language Models , url =
Shi, Weijia and Lee, Jaechan and Huang, Yangsibo and Malladi, Sadhika and Zhao, Jieyu and Holtzman, Ari and Liu, Daogao and Zettlemoyer, Luke and Smith, Noah and Zhang, Chiyuan , booktitle =. MUSE: Machine Unlearning Six-Way Evaluation for Language Models , url =
-
[67]
Journal of the American Society for Information Science and Technology , publisher =
A survey of modern authorship attribution methods , author =. Journal of the American Society for Information Science and Technology , publisher =. 2009 , month =. doi:10.1002/ASI.21001 , issn =
-
[68]
1984 , publisher =
A Theory of Narrative , author =. 1984 , publisher =
1984
-
[69]
Unilogit: Robust Machine Unlearning for LLM s Using Uniform-Target Self-Distillation
Vasilev, Stefan and Herold, Christian and Liao, Baohao and Hashemi, Seyyed Hadi and Khadivi, Shahram and Monz, Christof. Unilogit: Robust Machine Unlearning for LLM s Using Uniform-Target Self-Distillation. Findings of the Association for Computational Linguistics: ACL 2025. 2025. doi:10.18653/v1/2025.findings-acl.1154
-
[70]
Time Life Films, Inc
Walker v. Time Life Films, Inc. , author =. 1986 , url =
1986
-
[71]
Entertainment Inc
Warner Bros. Entertainment Inc. v. RDR Books , author =. 2008 , url =
2008
-
[72]
2024 , month =
Advancing Training Data Transparency in the EU AI Act , author =. 2024 , month =
2024
-
[73]
Evaluating Copyright Takedown Methods for Language Models , url =
Wei, Boyi and Shi, Weijia and Huang, Yangsibo and Smith, Noah and Zhang, Chiyuan and Zettlemoyer, Luke and Li, Kai and Henderson, Peter , booktitle =. Evaluating Copyright Takedown Methods for Language Models , url =. doi:10.52202/079017-4415 , editor =
-
[74]
2012 , publisher =
Building Imaginary Worlds: The Theory and History of Subcreation , author =. 2012 , publisher =
2012
-
[75]
2024 , month =
Negative Preference Optimization: From Catastrophic Collapse to Effective Unlearning , author =. 2024 , month =
2024
-
[76]
Judging LLM-as-a-Judge with MT-Bench and Chatbot Arena , url =
Zheng, Lianmin and Chiang, Wei-Lin and Sheng, Ying and Zhuang, Siyuan and Wu, Zhanghao and Zhuang, Yonghao and Lin, Zi and Li, Zhuohan and Li, Dacheng and Xing, Eric and Zhang, Hao and Gonzalez, Joseph and Stoica, Ion , booktitle =. Judging LLM-as-a-Judge with MT-Bench and Chatbot Arena , url =
-
[77]
S. S. Stevens , title =. Science , volume =. 1946 , doi =
1946
-
[78]
Advances in Health Sciences Education , year=
Norman, Geoff , title=. Advances in Health Sciences Education , year=. doi:10.1007/s10459-010-9222-y , url=
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.