License
This repository uses separate licenses for the book and for the software used to build it.
Book content: CC BY-SA 4.0
Unless a file states otherwise, the prose, exercises, tables, and original figures in the following paths are licensed under the Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0):
README.md,SUMMARY.md,ACADEMIC.md, andSAMPLE.md;chapters/;assets/;qa/,PUBLISHING.md,RELEASE.md,STYLE.md, andCONTRIBUTING.md.
Copyright © 2024-2026 Neil Han and contributors.
You may share and adapt this material, including commercially, provided that you give appropriate credit, link to the license, indicate changes, and distribute adaptations under the same license. The legal code controls if this summary differs from it:
https://creativecommons.org/licenses/by-sa/4.0/legalcode
Preferred attribution:
Neil Han, Mastering Blockchain Scalability, version used, https://github.com/neilydhan/Blockchain-Scalability-Book, CC BY-SA 4.0. Changes, if any, should be identified.
Third-party quotations, trademarks, and materials identified in figure credits or citations remain subject to their respective rights. This license does not imply endorsement by Neil Han or any institution.
Build software: MIT License
The files under scripts/, theme/, and .github/ are licensed under the MIT License:
Copyright (c) 2024-2026 Neil Han and contributors
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.