diff --git a/.claude/CLAUDE.md b/.claude/CLAUDE.md
index d77ef36..297d4a1 100644
--- a/.claude/CLAUDE.md
+++ b/.claude/CLAUDE.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # CLAUDE.md
diff --git a/.github/workflows/governance.yml b/.github/workflows/governance.yml
index 3236941..e3c0a50 100644
--- a/.github/workflows/governance.yml
+++ b/.github/workflows/governance.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 name: Governance
 
 on:
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index 9825379..45980c9 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: PMPL-1.0-or-later
+# SPDX-License-Identifier: MPL-2.0
 name: Hypatia Security Scan
 
 on:
diff --git a/.machine_readable/6a2/README.adoc b/.machine_readable/6a2/README.adoc
index bc033d7..916a702 100644
--- a/.machine_readable/6a2/README.adoc
+++ b/.machine_readable/6a2/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # A2ML 6a2 Directory
 
diff --git a/.machine_readable/6a2/anchor/README.adoc b/.machine_readable/6a2/anchor/README.adoc
index bd23e35..13cae63 100644
--- a/.machine_readable/6a2/anchor/README.adoc
+++ b/.machine_readable/6a2/anchor/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # A2ML Anchor Directory
 
diff --git a/.machine_readable/bot_directives/README.adoc b/.machine_readable/bot_directives/README.adoc
index a5315c7..1dcb625 100644
--- a/.machine_readable/bot_directives/README.adoc
+++ b/.machine_readable/bot_directives/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Agent Instructions
 :toc: preamble
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d36559d..c2369cd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Changelog
diff --git a/CODE_OF_CONDUCT.md b/CODE_OF_CONDUCT.md
index d0fb2f5..2412dbd 100644
--- a/CODE_OF_CONDUCT.md
+++ b/CODE_OF_CONDUCT.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Code of Conduct
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index c11122b..9f7d0cf 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Contributing to flat-mate
diff --git a/EXPLAINME.adoc b/EXPLAINME.adoc
index 0a3a93c..577e8be 100644
--- a/EXPLAINME.adoc
+++ b/EXPLAINME.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Flat, mate? -- EXPLAINME
 :toc: preamble
diff --git a/GOVERNANCE.adoc b/GOVERNANCE.adoc
index 8bbf167..e41020d 100644
--- a/GOVERNANCE.adoc
+++ b/GOVERNANCE.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Governance Model
 :toc: preamble
diff --git a/LICENSE b/LICENSE
index d0a1fa1..14e2f77 100644
--- a/LICENSE
+++ b/LICENSE
@@ -35,7 +35,7 @@ Mozilla Public License Version 2.0
     means any form of the work other than Source Code Form.
 
 1.7. "Larger Work"
-    means a work that combines Covered Software with other material, in
+    means a work that combines Covered Software with other material, in 
     a separate file or files, that is not Covered Software.
 
 1.8. "License"
@@ -357,7 +357,7 @@ Exhibit A - Source Code Form License Notice
 
   This Source Code Form is subject to the terms of the Mozilla Public
   License, v. 2.0. If a copy of the MPL was not distributed with this
-  file, You can obtain one at https://mozilla.org/MPL/2.0/.
+  file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 If it is not possible or desirable to put the notice in a particular
 file, then You may include the notice in a location (such as a LICENSE
diff --git a/LICENSES/CC-BY-SA-4.0.txt b/LICENSES/CC-BY-SA-4.0.txt
new file mode 100644
index 0000000..835a683
--- /dev/null
+++ b/LICENSES/CC-BY-SA-4.0.txt
@@ -0,0 +1,170 @@
+Creative Commons Attribution-ShareAlike 4.0 International
+
+ Creative Commons Corporation (“Creative Commons”) is not a law firm and does not provide legal services or legal advice. Distribution of Creative Commons public licenses does not create a lawyer-client or other relationship. Creative Commons makes its licenses and related information available on an “as-is” basis. Creative Commons gives no warranties regarding its licenses, any material licensed under their terms and conditions, or any related information. Creative Commons disclaims all liability for damages resulting from their use to the fullest extent possible.
+
+Using Creative Commons Public Licenses
+
+Creative Commons public licenses provide a standard set of terms and conditions that creators and other rights holders may use to share original works of authorship and other material subject to copyright and certain other rights specified in the public license below. The following considerations are for informational purposes only, are not exhaustive, and do not form part of our licenses.
+
+Considerations for licensors: Our public licenses are intended for use by those authorized to give the public permission to use material in ways otherwise restricted by copyright and certain other rights. Our licenses are irrevocable. Licensors should read and understand the terms and conditions of the license they choose before applying it. Licensors should also secure all rights necessary before applying our licenses so that the public can reuse the material as expected. Licensors should clearly mark any material not subject to the license. This includes other CC-licensed material, or material used under an exception or limitation to copyright. More considerations for licensors.
+
+Considerations for the public: By using one of our public licenses, a licensor grants the public permission to use the licensed material under specified terms and conditions. If the licensor’s permission is not necessary for any reason–for example, because of any applicable exception or limitation to copyright–then that use is not regulated by the license. Our licenses grant only permissions under copyright and certain other rights that a licensor has authority to grant. Use of the licensed material may still be restricted for other reasons, including because others have copyright or other rights in the material. A licensor may make special requests, such as asking that all changes be marked or described.
+
+Although not required by our licenses, you are encouraged to respect those requests where reasonable. More considerations for the public.
+
+Creative Commons Attribution-ShareAlike 4.0 International Public License
+
+By exercising the Licensed Rights (defined below), You accept and agree to be bound by the terms and conditions of this Creative Commons Attribution-ShareAlike 4.0 International Public License ("Public License"). To the extent this Public License may be interpreted as a contract, You are granted the Licensed Rights in consideration of Your acceptance of these terms and conditions, and the Licensor grants You such rights in consideration of benefits the Licensor receives from making the Licensed Material available under these terms and conditions.
+
+Section 1 – Definitions.
+
+     a.	Adapted Material means material subject to Copyright and Similar Rights that is derived from or based upon the Licensed Material and in which the Licensed Material is translated, altered, arranged, transformed, or otherwise modified in a manner requiring permission under the Copyright and Similar Rights held by the Licensor. For purposes of this Public License, where the Licensed Material is a musical work, performance, or sound recording, Adapted Material is always produced where the Licensed Material is synched in timed relation with a moving image.
+
+     b.	Adapter's License means the license You apply to Your Copyright and Similar Rights in Your contributions to Adapted Material in accordance with the terms and conditions of this Public License.
+
+     c.	BY-SA Compatible License means a license listed at creativecommons.org/compatiblelicenses, approved by Creative Commons as essentially the equivalent of this Public License.
+
+     d.	Copyright and Similar Rights means copyright and/or similar rights closely related to copyright including, without limitation, performance, broadcast, sound recording, and Sui Generis Database Rights, without regard to how the rights are labeled or categorized. For purposes of this Public License, the rights specified in Section 2(b)(1)-(2) are not Copyright and Similar Rights.
+
+     e.	Effective Technological Measures means those measures that, in the absence of proper authority, may not be circumvented under laws fulfilling obligations under Article 11 of the WIPO Copyright Treaty adopted on December 20, 1996, and/or similar international agreements.
+
+     f.	Exceptions and Limitations means fair use, fair dealing, and/or any other exception or limitation to Copyright and Similar Rights that applies to Your use of the Licensed Material.
+
+     g.	License Elements means the license attributes listed in the name of a Creative Commons Public License. The License Elements of this Public License are Attribution and ShareAlike.
+
+     h.	Licensed Material means the artistic or literary work, database, or other material to which the Licensor applied this Public License.
+
+     i.	Licensed Rights means the rights granted to You subject to the terms and conditions of this Public License, which are limited to all Copyright and Similar Rights that apply to Your use of the Licensed Material and that the Licensor has authority to license.
+
+     j.	Licensor means the individual(s) or entity(ies) granting rights under this Public License.
+
+     k.	Share means to provide material to the public by any means or process that requires permission under the Licensed Rights, such as reproduction, public display, public performance, distribution, dissemination, communication, or importation, and to make material available to the public including in ways that members of the public may access the material from a place and at a time individually chosen by them.
+
+     l.	Sui Generis Database Rights means rights other than copyright resulting from Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, as amended and/or succeeded, as well as other essentially equivalent rights anywhere in the world.
+
+     m.	You means the individual or entity exercising the Licensed Rights under this Public License. Your has a corresponding meaning.
+
+Section 2 – Scope.
+
+     a.	License grant.
+
+          1. Subject to the terms and conditions of this Public License, the Licensor hereby grants You a worldwide, royalty-free, non-sublicensable, non-exclusive, irrevocable license to exercise the Licensed Rights in the Licensed Material to:
+
+               A. reproduce and Share the Licensed Material, in whole or in part; and
+
+               B. produce, reproduce, and Share Adapted Material.
+
+          2. Exceptions and Limitations. For the avoidance of doubt, where Exceptions and Limitations apply to Your use, this Public License does not apply, and You do not need to comply with its terms and conditions.
+
+          3. Term. The term of this Public License is specified in Section 6(a).
+
+          4. Media and formats; technical modifications allowed. The Licensor authorizes You to exercise the Licensed Rights in all media and formats whether now known or hereafter created, and to make technical modifications necessary to do so. The Licensor waives and/or agrees not to assert any right or authority to forbid You from making technical modifications necessary to exercise the Licensed Rights, including technical modifications necessary to circumvent Effective Technological Measures. For purposes of this Public License, simply making modifications authorized by this Section 2(a)(4) never produces Adapted Material.
+
+          5. Downstream recipients.
+
+               A. Offer from the Licensor – Licensed Material. Every recipient of the Licensed Material automatically receives an offer from the Licensor to exercise the Licensed Rights under the terms and conditions of this Public License.
+
+               B. Additional offer from the Licensor – Adapted Material. Every recipient of Adapted Material from You automatically receives an offer from the Licensor to exercise the Licensed Rights in the Adapted Material under the conditions of the Adapter’s License You apply.
+
+               C. No downstream restrictions. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, the Licensed Material if doing so restricts exercise of the Licensed Rights by any recipient of the Licensed Material.
+
+          6. No endorsement. Nothing in this Public License constitutes or may be construed as permission to assert or imply that You are, or that Your use of the Licensed Material is, connected with, or sponsored, endorsed, or granted official status by, the Licensor or others designated to receive attribution as provided in Section 3(a)(1)(A)(i).
+
+     b.	Other rights.
+
+          1. Moral rights, such as the right of integrity, are not licensed under this Public License, nor are publicity, privacy, and/or other similar personality rights; however, to the extent possible, the Licensor waives and/or agrees not to assert any such rights held by the Licensor to the limited extent necessary to allow You to exercise the Licensed Rights, but not otherwise.
+
+          2. Patent and trademark rights are not licensed under this Public License.
+
+          3. To the extent possible, the Licensor waives any right to collect royalties from You for the exercise of the Licensed Rights, whether directly or through a collecting society under any voluntary or waivable statutory or compulsory licensing scheme. In all other cases the Licensor expressly reserves any right to collect such royalties.
+
+Section 3 – License Conditions.
+
+Your exercise of the Licensed Rights is expressly made subject to the following conditions.
+
+     a.	Attribution.
+
+          1. If You Share the Licensed Material (including in modified form), You must:
+
+               A. retain the following if it is supplied by the Licensor with the Licensed Material:
+
+                    i.	identification of the creator(s) of the Licensed Material and any others designated to receive attribution, in any reasonable manner requested by the Licensor (including by pseudonym if designated);
+
+                    ii.	a copyright notice;
+
+                    iii. a notice that refers to this Public License;
+
+                    iv.	a notice that refers to the disclaimer of warranties;
+
+                    v.	a URI or hyperlink to the Licensed Material to the extent reasonably practicable;
+
+               B. indicate if You modified the Licensed Material and retain an indication of any previous modifications; and
+
+               C. indicate the Licensed Material is licensed under this Public License, and include the text of, or the URI or hyperlink to, this Public License.
+
+          2. You may satisfy the conditions in Section 3(a)(1) in any reasonable manner based on the medium, means, and context in which You Share the Licensed Material. For example, it may be reasonable to satisfy the conditions by providing a URI or hyperlink to a resource that includes the required information.
+
+          3. If requested by the Licensor, You must remove any of the information required by Section 3(a)(1)(A) to the extent reasonably practicable.
+
+     b.	ShareAlike.In addition to the conditions in Section 3(a), if You Share Adapted Material You produce, the following conditions also apply.
+
+          1. The Adapter’s License You apply must be a Creative Commons license with the same License Elements, this version or later, or a BY-SA Compatible License.
+
+          2. You must include the text of, or the URI or hyperlink to, the Adapter's License You apply. You may satisfy this condition in any reasonable manner based on the medium, means, and context in which You Share Adapted Material.
+
+          3. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, Adapted Material that restrict exercise of the rights granted under the Adapter's License You apply.
+
+Section 4 – Sui Generis Database Rights.
+
+Where the Licensed Rights include Sui Generis Database Rights that apply to Your use of the Licensed Material:
+
+     a.	for the avoidance of doubt, Section 2(a)(1) grants You the right to extract, reuse, reproduce, and Share all or a substantial portion of the contents of the database;
+
+     b.	if You include all or a substantial portion of the database contents in a database in which You have Sui Generis Database Rights, then the database in which You have Sui Generis Database Rights (but not its individual contents) is Adapted Material, including for purposes of Section 3(b); and
+
+     c.	You must comply with the conditions in Section 3(a) if You Share all or a substantial portion of the contents of the database.
+For the avoidance of doubt, this Section 4 supplements and does not replace Your obligations under this Public License where the Licensed Rights include other Copyright and Similar Rights.
+
+Section 5 – Disclaimer of Warranties and Limitation of Liability.
+
+     a.	Unless otherwise separately undertaken by the Licensor, to the extent possible, the Licensor offers the Licensed Material as-is and as-available, and makes no representations or warranties of any kind concerning the Licensed Material, whether express, implied, statutory, or other. This includes, without limitation, warranties of title, merchantability, fitness for a particular purpose, non-infringement, absence of latent or other defects, accuracy, or the presence or absence of errors, whether or not known or discoverable. Where disclaimers of warranties are not allowed in full or in part, this disclaimer may not apply to You.
+
+     b.	To the extent possible, in no event will the Licensor be liable to You on any legal theory (including, without limitation, negligence) or otherwise for any direct, special, indirect, incidental, consequential, punitive, exemplary, or other losses, costs, expenses, or damages arising out of this Public License or use of the Licensed Material, even if the Licensor has been advised of the possibility of such losses, costs, expenses, or damages. Where a limitation of liability is not allowed in full or in part, this limitation may not apply to You.
+
+     c.	The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.
+
+Section 6 – Term and Termination.
+
+     a.	This Public License applies for the term of the Copyright and Similar Rights licensed here. However, if You fail to comply with this Public License, then Your rights under this Public License terminate automatically.
+
+     b.	Where Your right to use the Licensed Material has terminated under Section 6(a), it reinstates:
+
+          1. automatically as of the date the violation is cured, provided it is cured within 30 days of Your discovery of the violation; or
+
+          2. upon express reinstatement by the Licensor.
+
+     c.	For the avoidance of doubt, this Section 6(b) does not affect any right the Licensor may have to seek remedies for Your violations of this Public License.
+
+     d.	For the avoidance of doubt, the Licensor may also offer the Licensed Material under separate terms or conditions or stop distributing the Licensed Material at any time; however, doing so will not terminate this Public License.
+
+     e.	Sections 1, 5, 6, 7, and 8 survive termination of this Public License.
+
+Section 7 – Other Terms and Conditions.
+
+     a.	The Licensor shall not be bound by any additional or different terms or conditions communicated by You unless expressly agreed.
+
+     b.	Any arrangements, understandings, or agreements regarding the Licensed Material not stated herein are separate from and independent of the terms and conditions of this Public License.
+
+Section 8 – Interpretation.
+
+     a.	For the avoidance of doubt, this Public License does not, and shall not be interpreted to, reduce, limit, restrict, or impose conditions on any use of the Licensed Material that could lawfully be made without permission under this Public License.
+
+     b.	To the extent possible, if any provision of this Public License is deemed unenforceable, it shall be automatically reformed to the minimum extent necessary to make it enforceable. If the provision cannot be reformed, it shall be severed from this Public License without affecting the enforceability of the remaining terms and conditions.
+
+     c.	No term or condition of this Public License will be waived and no failure to comply consented to unless expressly agreed to by the Licensor.
+
+     d.	Nothing in this Public License constitutes or may be interpreted as a limitation upon, or waiver of, any privileges and immunities that apply to the Licensor or You, including from the legal processes of any jurisdiction or authority.
+
+Creative Commons is not a party to its public licenses. Notwithstanding, Creative Commons may elect to apply one of its public licenses to material it publishes and in those instances will be considered the “Licensor.” Except for the limited purpose of indicating that material is shared under a Creative Commons public license or as otherwise permitted by the Creative Commons policies published at creativecommons.org/policies, Creative Commons does not authorize the use of the trademark “Creative Commons” or any other trademark or logo of Creative Commons without its prior written consent including, without limitation, in connection with any unauthorized modifications to any of its public licenses or any other arrangements, understandings, or agreements concerning use of licensed material. For the avoidance of doubt, this paragraph does not form part of the public licenses.
+
+Creative Commons may be contacted at creativecommons.org.
diff --git a/LICENSES/PMPL-1.0-or-later.txt b/LICENSES/PMPL-1.0-or-later.txt
deleted file mode 100644
index 711e372..0000000
--- a/LICENSES/PMPL-1.0-or-later.txt
+++ /dev/null
@@ -1,162 +0,0 @@
-SPDX-License-Identifier: MPL-2.0
-SPDX-FileCopyrightText: 2025 Palimpsest Stewardship Council
-
-================================================================================
-PALIMPSEST-MPL LICENSE VERSION 1.0
-================================================================================
-
-File-level copyleft with ethical use and quantum-safe provenance
-
-Based on Mozilla Public License 2.0
-
---------------------------------------------------------------------------------
-PREAMBLE
---------------------------------------------------------------------------------
-
-This License extends the Mozilla Public License 2.0 (MPL-2.0) with provisions
-for ethical use, post-quantum cryptographic provenance, and emotional lineage
-protection. The base MPL-2.0 terms apply except where explicitly modified by
-the Exhibits below.
-
-Like a palimpsest manuscript where each layer builds upon what came before,
-this license recognizes that creative works carry history, context, and meaning
-that transcend mere code or text.
-
---------------------------------------------------------------------------------
-SECTION 1: BASE LICENSE
---------------------------------------------------------------------------------
-
-This License incorporates the full text of Mozilla Public License 2.0 by
-reference. The complete MPL-2.0 text is available at:
-https://www.mozilla.org/en-US/MPL/2.0/
-
-All terms, conditions, and definitions from MPL-2.0 apply except where
-explicitly modified by the Exhibits in this License.
-
---------------------------------------------------------------------------------
-SECTION 2: ADDITIONAL DEFINITIONS
---------------------------------------------------------------------------------
-
-2.1. "Emotional Lineage"
-    means the narrative, cultural, symbolic, and contextual meaning embedded
-    in Covered Software, including but not limited to: protest traditions,
-    cultural heritage, trauma narratives, and community stories.
-
-2.2. "Provenance Metadata"
-    means cryptographically signed attribution information attached to or
-    associated with Covered Software, including author identities, timestamps,
-    modification history, and lineage references.
-
-2.3. "Non-Interpretive System"
-    means any automated system that processes Covered Software without
-    preserving or considering its Emotional Lineage, including but not
-    limited to: AI training pipelines, content aggregators, and automated
-    summarization tools.
-
-2.4. "Quantum-Safe Signature"
-    means a cryptographic signature using algorithms resistant to attacks
-    by quantum computers, as specified in Exhibit B.
-
---------------------------------------------------------------------------------
-SECTION 3: ETHICAL USE REQUIREMENTS
---------------------------------------------------------------------------------
-
-In addition to the rights and obligations under MPL-2.0:
-
-3.1. Emotional Lineage Preservation
-    You must make reasonable efforts to preserve and communicate the
-    Emotional Lineage of Covered Software when distributing or creating
-    derivative works. This includes maintaining narrative context, cultural
-    attributions, and symbolic meaning where documented.
-
-3.2. Non-Interpretive System Notice
-    If You use Covered Software as input to a Non-Interpretive System, You
-    must:
-    (a) document such use in a publicly accessible manner; and
-    (b) not claim that outputs of such systems carry the Emotional Lineage
-        of the original work without explicit permission from Contributors.
-
-3.3. Ethical Use Declaration
-    Commercial use of Covered Software requires acknowledgment that You have
-    read and understood Exhibit A (Ethical Use Guidelines) and agree to act
-    in good faith accordance with its principles.
-
-See Exhibit A for complete Ethical Use Guidelines.
-
---------------------------------------------------------------------------------
-SECTION 4: PROVENANCE REQUIREMENTS
---------------------------------------------------------------------------------
-
-4.1. Metadata Preservation
-    You must not strip, alter, or obscure Provenance Metadata from Covered
-    Software except where technically necessary and with clear documentation
-    of any changes.
-
-4.2. Quantum-Safe Provenance (Optional)
-    Contributors may sign their Contributions using Quantum-Safe Signatures.
-    If Quantum-Safe Signatures are present, You must preserve them in all
-    distributions.
-
-4.3. Lineage Chain
-    When creating derivative works, You should extend the provenance chain
-    to include Your own contributions, maintaining cryptographic linkage to
-    prior Contributors where feasible.
-
-See Exhibit B for Quantum-Safe Provenance specifications.
-
---------------------------------------------------------------------------------
-SECTION 5: GOVERNANCE
---------------------------------------------------------------------------------
-
-5.1. Stewardship Council
-    This License is maintained by the Palimpsest Stewardship Council, which
-    may issue clarifications, interpretive guidance, and future versions.
-
-5.2. Version Selection
-    You may use Covered Software under this version of the License or any
-    later version published by the Palimpsest Stewardship Council.
-
-5.3. Dispute Resolution
-    Disputes regarding interpretation of Ethical Use Requirements (Section 3)
-    should first be submitted to the Palimpsest Stewardship Council for
-    non-binding guidance before pursuing legal remedies.
-
---------------------------------------------------------------------------------
-SECTION 6: COMPATIBILITY
---------------------------------------------------------------------------------
-
-6.1. MPL-2.0 Compatibility
-    Covered Software under this License may be combined with software under
-    MPL-2.0. The combined work must comply with both licenses.
-
-6.2. Secondary Licenses
-    The Secondary License provisions of MPL-2.0 Section 3.3 apply to this
-    License.
-
---------------------------------------------------------------------------------
-EXHIBITS
---------------------------------------------------------------------------------
-
-Exhibit A - Ethical Use Guidelines
-Exhibit B - Quantum-Safe Provenance Specification
-
-See separate files:
-- EXHIBIT-A-ETHICAL-USE.txt
-- EXHIBIT-B-QUANTUM-SAFE.txt
-
---------------------------------------------------------------------------------
-END OF PALIMPSEST-MPL-1.0 LICENSE TEXT
---------------------------------------------------------------------------------
-
-For exhibits, specifications, provenance rules, and governance:
-https://github.com/hyperpolymath/palimpsest-license
-
-For legal frameworks and jurisdictional analysis:
-See /legal/frameworks/
-
-For provenance and audit tooling:
-See /tools/ and /spec/PROVENANCE-SPEC.adoc
-
-For questions about this License:
-- Repository: https://github.com/hyperpolymath/palimpsest-license
-- Council: contact via repository Issues
diff --git a/MAINTAINERS.adoc b/MAINTAINERS.adoc
index 9910dd8..daf8a78 100644
--- a/MAINTAINERS.adoc
+++ b/MAINTAINERS.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Maintainers
 :toc: preamble
diff --git a/QUICKSTART-DEV.adoc b/QUICKSTART-DEV.adoc
index aedf67e..d965be1 100644
--- a/QUICKSTART-DEV.adoc
+++ b/QUICKSTART-DEV.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = flat-mate — Developer Quickstart
 :toc: preamble
diff --git a/QUICKSTART-MAINTAINER.adoc b/QUICKSTART-MAINTAINER.adoc
index 742a78c..592a31c 100644
--- a/QUICKSTART-MAINTAINER.adoc
+++ b/QUICKSTART-MAINTAINER.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = flat-mate — Maintainer Quickstart
 :toc: preamble
diff --git a/QUICKSTART-USER.adoc b/QUICKSTART-USER.adoc
index 67959b3..2df2532 100644
--- a/QUICKSTART-USER.adoc
+++ b/QUICKSTART-USER.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = flat-mate — User Quickstart
 :toc: preamble
diff --git a/READINESS.md b/READINESS.md
index 3999173..691454b 100644
--- a/READINESS.md
+++ b/READINESS.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # flat-mate Component Readiness Assessment
diff --git a/README.adoc b/README.adoc
index a500933..8d41ec8 100644
--- a/README.adoc
+++ b/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 // SPDX-FileCopyrightText: 2026 Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 
@@ -129,5 +129,5 @@ Deferred roadmap, in liquidity order (see the design doc):
 
 == License
 
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 See link:LICENSE[LICENSE].
diff --git a/ROADMAP.adoc b/ROADMAP.adoc
index 99c7899..1b2a236 100644
--- a/ROADMAP.adoc
+++ b/ROADMAP.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = flat-mate Roadmap
 :author: Jonathan D.A. Jewell
diff --git a/SECURITY.md b/SECURITY.md
index a799928..d589bb4 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Security Policy
diff --git a/TEST-NEEDS.md b/TEST-NEEDS.md
index 23e0b66..1655958 100644
--- a/TEST-NEEDS.md
+++ b/TEST-NEEDS.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # TEST-NEEDS.md — flat-mate
diff --git a/TOPOLOGY.md b/TOPOLOGY.md
index c3a089e..1e4c5b3 100644
--- a/TOPOLOGY.md
+++ b/TOPOLOGY.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 <!-- TOPOLOGY.md — Project architecture map and status -->
diff --git a/docs/accessibility/README.adoc b/docs/accessibility/README.adoc
index 0cd6b70..de58834 100644
--- a/docs/accessibility/README.adoc
+++ b/docs/accessibility/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Burble Accessibility
 :toc: auto
diff --git a/docs/architecture.md b/docs/architecture.md
index 2f8463b..298e614 100644
--- a/docs/architecture.md
+++ b/docs/architecture.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # flat-mate architecture
diff --git a/docs/compliance/ACCESSIBILITY.adoc b/docs/compliance/ACCESSIBILITY.adoc
index a998363..5955437 100644
--- a/docs/compliance/ACCESSIBILITY.adoc
+++ b/docs/compliance/ACCESSIBILITY.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Accessibility Compliance
 Status: Partial
diff --git a/docs/design/squad-audit-v1.adoc b/docs/design/squad-audit-v1.adoc
index 3baec58..060bcd1 100644
--- a/docs/design/squad-audit-v1.adoc
+++ b/docs/design/squad-audit-v1.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = flat-mate v1 — Squad Audit: Design Decision Record
 :toc:
diff --git a/docs/reports/audit/audit-2026-04-15-post.md b/docs/reports/audit/audit-2026-04-15-post.md
index 4f9896b..c0d19d7 100644
--- a/docs/reports/audit/audit-2026-04-15-post.md
+++ b/docs/reports/audit/audit-2026-04-15-post.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # POST-audit status report
diff --git a/docs/reports/audit/audit-2026-04-15-pre.md b/docs/reports/audit/audit-2026-04-15-pre.md
index 54aedeb..229052d 100644
--- a/docs/reports/audit/audit-2026-04-15-pre.md
+++ b/docs/reports/audit/audit-2026-04-15-pre.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # PRE-audit status report
diff --git a/docs/tech-debt-2026-05-26.md b/docs/tech-debt-2026-05-26.md
index bfcf6e4..b17b3f3 100644
--- a/docs/tech-debt-2026-05-26.md
+++ b/docs/tech-debt-2026-05-26.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Tech-Debt Audit — flat-mate — 2026-05-26
diff --git a/docs/wiki/Conceal-Lattice.md b/docs/wiki/Conceal-Lattice.md
index f55a037..f16658c 100644
--- a/docs/wiki/Conceal-Lattice.md
+++ b/docs/wiki/Conceal-Lattice.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Conceal Lattice
diff --git a/docs/wiki/Data-Governance.md b/docs/wiki/Data-Governance.md
index 959424e..3549339 100644
--- a/docs/wiki/Data-Governance.md
+++ b/docs/wiki/Data-Governance.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Data Governance
diff --git a/docs/wiki/Design-Decision-Record.md b/docs/wiki/Design-Decision-Record.md
index e0963e4..87ee147 100644
--- a/docs/wiki/Design-Decision-Record.md
+++ b/docs/wiki/Design-Decision-Record.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Design Decision Record
diff --git a/docs/wiki/Development.md b/docs/wiki/Development.md
index 8adf81b..c66594c 100644
--- a/docs/wiki/Development.md
+++ b/docs/wiki/Development.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Development
diff --git a/docs/wiki/Engine-v2-Reference.md b/docs/wiki/Engine-v2-Reference.md
index 32cda1b..18ee6d7 100644
--- a/docs/wiki/Engine-v2-Reference.md
+++ b/docs/wiki/Engine-v2-Reference.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Engine v2 Reference
diff --git a/docs/wiki/Home.md b/docs/wiki/Home.md
index b223aec..c9c1183 100644
--- a/docs/wiki/Home.md
+++ b/docs/wiki/Home.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # flat-mate
diff --git a/docs/wiki/README.adoc b/docs/wiki/README.adoc
index 5739b57..275769c 100644
--- a/docs/wiki/README.adoc
+++ b/docs/wiki/README.adoc
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Wiki source pages
 :revdate: 2026-06-11
diff --git a/docs/wiki/Squad-Audit-Walkthrough.md b/docs/wiki/Squad-Audit-Walkthrough.md
index abbbb46..06b7423 100644
--- a/docs/wiki/Squad-Audit-Walkthrough.md
+++ b/docs/wiki/Squad-Audit-Walkthrough.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Squad Audit Walkthrough
diff --git a/docs/wiki/Theory-Foundations.md b/docs/wiki/Theory-Foundations.md
index 37ab56b..30361df 100644
--- a/docs/wiki/Theory-Foundations.md
+++ b/docs/wiki/Theory-Foundations.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # Theory Foundations
diff --git a/llm-warmup-dev.md b/llm-warmup-dev.md
index a18fd1b..f81721a 100644
--- a/llm-warmup-dev.md
+++ b/llm-warmup-dev.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # LLM Warmup — flat-mate (Developer)
diff --git a/llm-warmup-user.md b/llm-warmup-user.md
index 39d6012..3df7e06 100644
--- a/llm-warmup-user.md
+++ b/llm-warmup-user.md
@@ -1,5 +1,5 @@
 <!--
-SPDX-License-Identifier: MPL-2.0
+SPDX-License-Identifier: CC-BY-SA-4.0
 Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 -->
 # LLM Warmup — flat-mate (User)
