字间 v1 — 数据与软件来源 / Attribution and licenses

1. CC-CEDICT Chinese–English dictionary
   Copyright CC-CEDICT contributors. Retrieved 2026-11-14 from MDBG:
   https://www.mdbg.net/chinese/dictionary?page=cc-cedict
   Source: https://www.mdbg.net/chinese/export/cedict/cedict_1_0_ts_utf-8_mdbg.txt.gz
   License: Creative Commons Attribution-ShareAlike 4.0 International
   https://creativecommons.org/licenses/by-sa/4.0/
   Local source: licenses/cedict.gz
   Changes: simplified-character subset, selected glosses, tone-mark conversion,
   grouping by reading, phrase selection; no endorsement by dictionary authors.
   Derived dictionary JSON and vocabulary data retain CC BY-SA 4.0 licensing.

2. Make Me a Hanzi character metadata and graphics
   https://github.com/skishore/makemeahanzi
   Metadata source: licenses/character-dictionary.jsonl
   Metadata license: GNU LGPL v3 (licenses/makemeahanzi-LGPL.txt).
   Changes: selected 3500 entries and fields; reference decomposition labels.
   Graphics derived from Arphic fonts; Arphic Public License applies.
   Original notices: vendor/makemeahanzi-COPYING.txt
   Full graphics license: vendor/Arphic-Public-License.txt

3. Hanzi Writer Data 2.0.1
   https://github.com/chanind/hanzi-writer-data
   Source: https://registry.npmjs.org/hanzi-writer-data/-/hanzi-writer-data-2.0.1.tgz
   3500 unmodified character JSON files in characters/.
   Derived from Make Me a Hanzi; graphics licensing as above.

4. HSK 3.0 / 2021 reference character and vocabulary data
   https://github.com/ivankra/hsk30
   License: MIT (licenses/hsk-LICENSE.txt)
   Source CSV files and original README: licenses/hsk-chars.csv,
   licenses/hsk-vocabulary.csv, licenses/hsk-README.md
   Used for ordering and phrase selection. Not an IB official list, nor a claim
   of equivalence to present-day HSK exam levels.

5. Standard character list transcription
   https://github.com/Hansha2011/TongYongGuiFanCharacterTable
   License: MIT (licenses/standard-LICENSE.txt)
   Source: licenses/standard-characters.csv (first 3500 unique characters).
   This application supplies a new pedagogical ordering, not the source ordering.

6. Hanzi Writer 3.5.0 (browser stroke animation/quiz software)
   https://github.com/chanind/hanzi-writer
   License: MIT (vendor/hanzi-writer-LICENSE.txt)

7. ts-fsrs 5.4.2 (FSRS-6 scheduling software)
   https://github.com/open-spaced-repetition/ts-fsrs
   License: MIT, preserved in software build dependencies.
   pinyin-pro 3.29.5 (contextual reading annotation)
   https://github.com/zh-lx/pinyin-pro
   License: MIT, preserved in software build dependencies.

The application UI, authored usage examples and 17 recommended reading scenes
are created for Zijian. Imported source data has not received exhaustive manual
pedagogical review. Character/word pronunciation and glosses may need correction.
AI-created stories are labelled separately and are not dictionary source material.

Reproduction: licenses/build-curriculum.py, original data above, Hanzi Writer
Data npm archive, plus licenses/authored-usage.json and reading-scenes.json.
The content licenses apply to their respective datasets, not to unrelated software.