MasterKanji content credits Dictionary data: JMdict and KANJIDIC2, copyright James William Breen and EDRDG. Licence: Creative Commons Attribution-ShareAlike 4.0. https://www.edrdg.org/edrdg/licence.html https://creativecommons.org/licenses/by-sa/4.0/ JSON conversion: Stanislav Petrov and jmdict-simplified contributors. https://github.com/scriptin/jmdict-simplified Our selected dictionary-derived curriculum, independent ordering, prerequisite links, normalisation, answer aliases and adapted teaching text are CC BY-SA 4.0. These sources do not endorse MasterKanji. Original dictionary downloads and documentation are available from the EDRDG project links on /credits. Adapted course data and attribution are preserved in content/curriculum.json and content/LICENSE.md of the distribution. The hosted personal study API is scoped to the subscriber's own study; it does not offer bulk course downloads. This does not limit recipients' rights under the reference data's open licences. Examples: Tatoeba contributors, default CC BY 2.0 France, via JMdict examples. Each selected example has a source sentence URL in its item. No sentence text modifications. https://tatoeba.org/en/terms_of_use https://creativecommons.org/licenses/by/2.0/fr/ Reading exercises without a sentence source are original reading prompts. Radical labels: Unicode Kangxi radical names; https://www.unicode.org/license.txt Visual character structure: KanjiVG, Ulrich Apel and contributors, CC BY-SA 3.0. https://kanjivg.tagaini.net/ https://creativecommons.org/licenses/by-sa/3.0/ Adaptations select Japanese structural groups and turn them into teaching dependencies and visible building-block explanations. These are visual aids, not claims about historical etymology. Source identity and changes accompany content/component-structures.json and the course-map provenance. Fonts: DM Sans and DM Serif Display, SIL Open Font License 1.1. Copies: /assets/dm-sans-license.txt and /assets/dm-serif-display-license.txt MasterKanji story, brand and generated original illustrations are separate from the licensed dictionary data. All software, teaching guides and artwork created for MasterKanji are independently produced. The course uses reference-backed teaching data undergoing ongoing editorial review. Imported corpus examples remain hidden in the live application while their complete contributor and translation attribution is reconciled.