Last updated: May 2, 2026
TurtleTech services rely on open scholarly infrastructure, public datasets, and open-source projects. We list the substantive ones here so the underlying communities receive credit. The list is not exhaustive and we add to it as services evolve.
Open scholarly infrastructure#
The metadata our services display about scholarly works is derived from public, community-maintained sources. None of these organisations endorse TurtleTech products.
- Crossref – DOI registration agency and metadata source for journal articles, books, and proceedings.
- OpenAlex – open index of works, authors, institutions, and concepts under CC0.
- ORCID – public researcher identifier records used for author disambiguation.
- Semantic Scholar (Allen Institute for AI) – title, abstract, and citation graph metadata. Built on the work described in Lo et al., “S2ORC: The Semantic Scholar Open Research Corpus”, ACL 2020 (paper).
- Fatcat (Internet Archive) – catalog of scholarly artefacts and editable bibliographic records.
- PubMed / NCBI – biomedical citation index used for life-sciences lookups.
Citation styles#
Citation rendering is implemented against the open Citation Style Language (CSL) specification. Style files come from the CSL styles repository and are licensed CC BY-SA 3.0.
Open-source projects#
TurtleTech services bundle or integrate with several open-source projects. This list highlights the user-visible ones; license texts ship with each distribution.
- Zotero – the reference manager our Ridley app stores and serves libraries for.
- CSL and the CSL styles repository.
- DuckDB, Valkey, SQLite – storage and analytics engines underpinning several services.
- axum, Svelte, and the Rust + Tokio ecosystems.
Reporting an attribution issue#
If we are missing or misattributing something, email info@turtletech.us with the subject “Acknowledgement update” and we will fix it.