# Thabit — Upstream Source Investigation

**Model**: Claude Opus 4.6
**Date**: 2026-03-12
**Investigator**: AI agent (Claude) under guidance of @felipesanches

## Summary

No canonical upstream repository with UFO or Glyphs sources was found for Thabit on GitHub. The font is part of the Arabeyes Khotot project developed by Khaled Hosny. Khaled Hosny's GitHub account (github.com/khaledhosny) was checked and contained 28+ repositories, none of which was Thabit. The DESCRIPTION.en_us.html referenced Arabeyes.org (arabeyes.org) as the project home, but this project's sources appear to be hosted on SourceForge or other pre-GitHub version control systems, not on GitHub. No GitHub-based canonical repository was found.

## Searches Performed

- github.com/khaledhosny — full repo list checked (28+ repos), no Thabit
- GitHub search: "thabit arabic font" — no relevant results
- GitHub search: "arabeyes khotot" — no results
- GitHub search: "thabit arabic fixed-width font" — no results
- github.com/arabeyes-org/khotot — not found
- github.com/googlefonts/thabit — not found

## Conclusion

The Thabit font appears to originate from the Arabeyes.org Khotot project which predates GitHub and its sources are not available in a GitHub repository with UFO or Glyphs format. No source block was added to METADATA.pb.
