Towards Best Practices for Open Datasets for LLM Training. - Stefan Baack; Stella Biderman; Kasia Odrozek; Aviya Skowron; Ayah Bdeir; Jillian Bommarito; Jennifer Ding; Maximilian Gahntz; Paul Keller; Pierre-Carl Langlais; Greg Lindahl; Sebastian Majstorovic; et al. (CoRR, 2025)