# Constructions: component notices Prepared 14 October 2026 for the noncommercial English reading edition. This is a collection of separately identified components. The book's CC BY 4.0 licence covers its original prose and illustrations, and does not change the terms of the following material. No endorsement by a source publisher is claimed. The companion's original Arxo program code is supplied with Apache 2.0 and NOTICE; the selected specification documents retain their CC BY 4.0 licence. Adaptations are listed in MIGRATION.md and execution.json. ## OpenStax Chemistry 2e, OpenStax, Rice University, Paul Flowers, Klaus Theopold, Richard Langley and William R. Robinson. Free original: . The OpenStax source texts, source excerpts and their English renderings, and the OpenStax-based chemistry and measurement adaptations are offered under CC BY-NC-SA 4.0: . Use them for noncommercial purposes, credit the source, identify changes, and distribute adaptations under the same licence. This notice applies to the OpenStax-related material in `reader/corpus/laws/org/openstax/`, its dependency copies and generated programs, and the corresponding reference files. Changes include selection, text extraction, formal representation, the edition's English renderings and the recorded CLI adaptations. ## Scrum Guide © 2020 Ken Schwaber and Jeff Sutherland, The Scrum Guide, November 2020. . CC BY-SA 4.0: . The selected text and its renderings/adaptations retain this licence. Changes: text extraction, source selection, formal representation, English rendering, and the named deadline policy recorded in MIGRATION.md. Applies to the Scrum source material and its adaptations in the book, `reader/corpus/laws/org/scrum/guide/`, generated programs and reference files. ## BIPM Bureau International des Poids et Mesures, The International System of Units (SI), eighth and ninth editions, and the 26th CGPM (2018), Resolution 1. Original publications: . The ninth-edition text included here states CC BY 4.0. BIPM's general terms also offer CC BY 4.0 unless a publication states otherwise: . . The eighth edition remains identified as the historical source. Changes: text extraction, selection, formal representation and the exact Rational unity adaptation described in MIGRATION.md. No BIPM approval is claimed. ## IETF RFC 2119, Scott Bradner, March 1997, © 1997 The Internet Society: . RFC 8174, Barry Leiba, May 2017, © 2017 IETF Trust and the persons identified as the document authors: . Their copyright and permission notices remain in the supplied text files. Formal models and commentary are separate from the RFCs. The RFCs' own terms apply; neither their text nor their copyright statements are relicensed under the book's author licence. IETF Trust provisions: . ## W3C Copyright © 2013 W3C (MIT, ERCIM, Keio, Beihang), PROV-Overview, Working Group Note, 30 April 2013: . Copyright © 2012 W3C (MIT, ERCIM, Keio), OWL 2 Primer, Second Edition, Recommendation, 11 December 2012: . Copyright © 2025 World Wide Web Consortium, Verifiable Credentials Data Model v2.0, Recommendation, 15 May 2025: . The book includes attributed renderings for software documentation, not a replacement specification. The historical PROV/OWL document-use terms and the VC permissive document licence linked by the original documents apply. Licence directory: . Software-documentation derivative notice: this document includes material copied from or derived from the titles and URIs identified above. Changes: short English renderings and commentary about the book's models. ## Historical and author-created texts Euclid: ancient Greek text from the pinned Greek Wikisource editions; the source URIs and revision identifiers are in the model's sources.law. The book uses its own English paraphrases. No David Joyce web edition or modern English translation is included in the companion. Hilbert: the 1899 work in E. J. Townsend's 1902 English translation, from Project Gutenberg . Gauss: selected Latin articles from the 1870 collected edition, with pinned Wikisource revisions recorded in sources.law. Kafka: the original German text, with pinned Wikisource revision references; the book's English glosses are its own. No modern English translation is supplied. The mycology restatement and the school reading of geometry are identified in their models as original restatements by the Arxo author. ## Syzdyq: reference only Rabigha Syzdyq, Қазақ тілінің анықтағышы, Elorda, Astana, 2000, §§33–34. The public companion excludes the 109,265-byte handbook extract and the long source-fragment quotations, including the embedded poetry. The publication URL and original digest are retained as bibliographic data. The source edition is ABSTRACT_ONLY. No source-text coverage or permission to redistribute the handbook is claimed. The formal rules, brief linguistic examples and original explanations remain. The short linguistic example was checked against §33 of the original handbook with Codex and Astra. This was an AI editorial review; a human language review is not claimed. ## Short scholarly comparisons and artwork The reading notes credit Sutcliffe/Pelletier/Hazen, Dijkstra, Reproducible Builds, Offutt/Pan, Buckheit/Donoho and Feynman at the point of use. They contain short attributed renderings and commentary; the companion contains no full copies of their papers. They are excluded from the book's general author-text licence. German Kafka passages and Euclid paraphrases are identified separately from modern translations. The illustrations are the book's selected generated artwork. Prompts, private editorial files, CLI executables and system font files are excluded from the public companion. Names and trademarks retain their own rights.