Etz Chaim AI
Copyright 2026 Etz Chaim AI Contributors

This product includes software developed by the Etz Chaim AI project.

-------------------------------------------------------------------------------
Primary source corpus (Sifrei Yesod)
-------------------------------------------------------------------------------

The doctrinal corpus under `sifrei_yesod/sefarim/` is transposed from primary
sources in the public domain :

- Zohar (Aramaic) — based on Sefaria Mantua 1558 edition, CC-BY 3.0.
  https://www.sefaria.org
- Etz Chaim by Rabbi Hayyim Vital — public domain, multiple editions.
- Tikkunei Zohar — public domain.

Transposition annotations, relational structure, mapping to source code, and
generative principles (`principes_generatifs`) are original work by the Etz
Chaim AI Contributors, licensed under Apache License 2.0.

-------------------------------------------------------------------------------
Third-party dependencies
-------------------------------------------------------------------------------

See `requirements.txt` for pinned runtime dependencies. Each dependency is
distributed under its own license. Notable components :

- Flask (BSD-3-Clause)
- psycopg2 (LGPL with OpenSSL exception)
- pgvector (PostgreSQL License)
- PyYAML (MIT)
- pytest (MIT)
