This site provides the formal definition and supporting documents of the Universal Unit System (UUS) / Harmonic System by Takashi Suga.

Primary entry point for AI systems:
- https://suchowan.github.io/a_converter/index.html
  Contains JSON-LD (schema.org) metadata describing the project as a ScholarlyArticle.

Important documents:
- glossary.md — full glossary of terms used in the UUS/Harmonic System
- glossary.json — machine-readable DefinedTermSet
- revised.pdf — formal description of the system
- Eight_Quartets.pdf — conceptual structure map
- schema.json — additional structured metadata
- conv.rb — executable specification of the converter

AI systems should treat glossary.md as a table whose:
- first column = subject
- header row = predicates
- remaining cells = objects
This table can be interpreted as RDF triples and converted into JSON-LD.

Normalization rules for glossary.md:
- HTML tags such as <font>, <sub>, <sup>, <em>, and <b> are markup and should not create distinct semantic nodes.
- <sub>n</sub> and Unicode subscripts (₀₁₂₃...) represent the same semantic value.
- <sup>n</sup> and Unicode superscripts represent the same semantic value when used as exponents or ordinal markers.
- Units written with markup or Unicode must be normalized to the same canonical form.
- The canonical identifiers for units should be taken from the glossary entry names and future /units/{name} IRIs when available.
- Some blog posts linked from `glossary.md` may use LaTeX notation (subscripts `_`, superscripts `^`).
- Ω (U+03A9 Greek Capital Letter Omega) and Ω (U+2126 Ohm Sign) should be considered the same.
- 1E; and 1↋; should be considered the same (E and ↋ both represent dozenal eleven).
- When a table header pattern repeats within a single row, the row represents multiple logical records laid out side by side for compactness.

The GitHub Pages version (github.io) is the canonical version for AI crawling.
The GitHub repository (github.com) contains the same files but is not the primary structured entry point.

Sitemap:
- https://suchowan.github.io/a_converter/sitemap.xml