# English edition: attribution, changes, and component rights

Traceable Mathematical Work, O017 / D120, English-access edition 2026.08.31.
Public human creator and licensor: **KokunoYumeto**. Production system:
**OpenAI Codex gpt-5.6-sol, Ultra**, used at the human creator's instruction.

This is an English translation of the original nine-unit Indonesian course
*Kerja Matematika yang Dapat Ditelusuri*, version 2026.08.24,
<https://doi.org/10.5281/zenodo.22073823>. It preserves its mathematical scope,
unit and object identifiers, exercises and guidance, methodological donors,
code, and teaching framework. English front matter, terminology explanations,
localization records, build configuration, and integration links have been
added or adapted for English access. Translation QA records any local wording
clarifications; the Indonesian edition is not rewritten.

Original learner and teaching expression and its English translation are
**CC BY-SA 4.0**. Suggested attribution: "KokunoYumeto, Traceable Mathematical
Work, O017/D120 English edition 2026.08.31, translated from the Indonesian
edition 2026.08.24; produced with OpenAI Codex gpt-5.6-sol, Ultra."

`LICENSES.md` is the retained component-rights map from the source edition.
Its path classes also apply to corresponding English files. The English
`backend/` localization and explanatory material is CC BY-SA 4.0; factual
identifiers and relation fields are CC0 to the extent possible. New English
builder, schemas, configuration, and styling are MIT under the same
KokunoYumeto copyright notice. Exact mathematical facts are not claimed as
original expression. No blanket license is imposed on third-party bytes.

The Turing Way Community's selected methodological content remains CC BY 4.0,
at commit `c98a0e6ca47450456cca7c5eedda2d5ee131d1ce`. Selected prose from
*Research Software Engineering with Python*, by Damien Irving, Kate Hertweck,
Luke Johnston, Joel Ostblom, Charlotte Wickham, and Greg Wilson, remains
CC BY 4.0 at commit `62217e6606842ab9752fcf8e73954d1eb4a3cf07`.
These sources are already English; the course's bounded original adaptations
are translated, not the English donor books themselves. Source-author credits,
license and change notices, nested credits, and non-endorsement boundaries are
retained. Full donor witness trees are not included in this release.

Runtime and font components retain the MIT, Apache-2.0, SIL OFL, or GUST Font
License terms documented in `THIRD_PARTY_NOTICES.md` and `licenses/`.
The English PDF additionally embeds unmodified DejaVu Serif and DejaVu Sans
Mono 2.35 fonts to preserve Unicode proof diagrams and prime-marked labels.
Those files remain under the complete Bitstream Vera and Arev permission
notices in `licenses/DejaVu-Font-License.txt`; DejaVu changes are public domain.
Calibration personas and events remain synthetic. This edition makes no
claim of human peer review, institutional endorsement, learner completion,
credential award, or new external community participation.