Third-party notices

Sanskrit meter catalog

mishra.json contains a list of 1,348 meters input by Dr. Dhaval Patel, based on Mārcis Gasūns’s scraping of the site by Anand Mishra.

The matching source file is distributed by the shreevatsa/sanskrit project under the GNU General Public License version 2. The catalog’s original attribution remains embedded in mishra.json. Chandas.org does not claim authorship of the catalog.

Structural and mātrā rule references

structural_meters.json is an original machine-readable catalog for Chandas.org. The initial pathyā Anuṣṭubh rule is documented against A Study on the Sanskrit Meter: Anuṣṭubh.

The initial Āryā-family mātrā-group totals are documented against DHARMA Prosodic Patterns.

The provisional Pañcamātrā Chaupadi rule is scoped to the familiar Mankuthimmana Kagga written form and documented against the University of Mysore Encyclopaedia’s Kannada Prosody article, Shrikaanth K.’s Kannada meter overview, and Prekshaa’s discussion of music and prosody. These references establish the family, gait, and usage; their examples and page content are not bundled with the application.

The provisional Kannada Kanda rhythm rules are documented against Chanda Nikasha (Naga-Pingala), Kannada Chandassu, and Classical Kannada. These references supply prosodic facts and terminology; their page content is not bundled with the application.

The provisional Kannada Ragale rules for Utsāha, Mandānila, and Lalita are documented against Classical Kannada, Chanda Nikasha, Gil Ben-Herut’s discussion of Harihara’s Ragaḷe, and Kannada Kanaja. These references provide rule facts; their examples and page content are not bundled with the application.

The provisional Kannada Ṣaṭpadi and aṃśa-family rules for Tripadi, Sāṅgatya, and Akkara are documented against Nāgavarma’s Canarese Prosody, Kittel edition, the University of Mysore Encyclopaedia’s Kannada Prosody article, the historical signatures and Kannada fixed-vṛtta formulas in Kannada Wikipedia’s metres overview, Classical Kannada’s Ṣaṭpadi article, and Chanda Nikasha, with the non-initial-Laghu karṣaṇa guide documented against Shrikaanth K. Murthy’s aṃśa-gaṇa overview. These references provide rule facts and terminology; their page content and examples are not bundled with the application.

The separate provisional folk Tripadi mātrā frame and sung-Laghu annotation are documented against Classical Kannada’s Tripadi article and its Akshara Gana, Matra Gana and Amshagana article. These references provide rule facts and terminology; their page content is not bundled with the application.

Public-domain learning examples

examples/apte_sanskrit_examples.json contains thirty-six short Sanskrit meter illustrations from Vaman Shivram Apte’s 1890 Appendix A: Sanskrit Prosody, checked against the cleaner Cologne transcription. The underlying book and traditional verses are public domain. The source and compiler attribution are retained; Chandas.org adds the child-safety review and executable scansion checks.

The Mandākrāntā field-guide example is Kālidāsa’s Meghadūta opening, checked against K. B. Pathak’s public-domain 1916 edition.

Offline synonym data

The Kannada suggestions contain information from V. Krishna’s Alar Kannada–English dictionary, made available under the Open Database License 1.0. Chandas groups only headwords that Alar assigns the same definition identifier; broad groups are withheld for review. The complete adapted JSON database and deterministic builder are distributed with Chandas under ODbL 1.0.

The Sanskrit suggestions are direct synonym sets from Amarasiṃha’s Nāmaliṅgānuśāsana (Amarakośa), using the Cologne Digital Sanskrit Lexicon edition under CC BY-SA 4.0. Attribution is due to Amarasiṃha, the University of Hyderabad SCL digitisation, and CDSL’s conversion and correction contributors. The resulting Sanskrit JSON remains CC BY-SA 4.0.

These two lexical databases remain separate from each other and from Chandas’s GPL-3.0-only application code. Full machine-readable notices are included in data/synonyms/DATA_LICENSES.md.