LexChangeFeed Specification

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LexChangeFeed

The infrastructure for monitoring evolving law.

Purpose

LexChangeFeed is an open-source legal intelligence infrastructure designed to monitor, structure, analyze, and communicate changes in copyright law.

The system treats law as an evolving body of structured information rather than a static collection of documents. It continuously incorporates changes to statutes, regulations, judicial decisions, authoritative guidance, and other relevant legal sources, while preserving historical versions and relationships between legal authorities.

LexChangeFeed is designed to help users understand how existing and emerging copyright law may apply to their publications, projects, and other works. The system provides jurisdiction-aware analysis, legal research capabilities, source verification, cross-references, and notifications when relevant legal developments may affect a tracked work.

LexChangeFeed is an informational and research system. It must not represent automated analysis as a definitive legal determination or substitute for advice from a qualified attorney.

Core Design Principles

LexChangeFeed shall be designed around the following principles:

Open-source development
Modular architecture
Jurisdiction-aware analysis
Source-first legal intelligence
Citation-backed responses
Continuous legal change monitoring
Historical legal versioning
Transparent legal provenance
Cross-referenced authorities
Human-in-the-loop review
Extensible jurisdiction support
Extensible legal-domain support
User-controlled publication monitoring
Explicit uncertainty handling
Separation of legal information from legal advice
Avoidance of unsupported legal conclusions
Preservation of attribution and licensing requirements

Core AI Intelligence Module

The Core AI Intelligence Module provides the primary reasoning and interaction layer for LexChangeFeed.

The module shall:

Interpret natural-language copyright questions
Analyze legal scenarios
Explain copyright concepts
Summarize statutes
Summarize court decisions
Identify potentially relevant legal authorities
Compare legal authorities
Identify potentially conflicting authorities
Identify relevant legal doctrines
Connect legal questions to applicable jurisdictions
Generate source-backed explanations
Generate legal research summaries
Explain uncertainty
Identify gaps in available authority
Distinguish primary authority from secondary material
Distinguish established holdings from interpretations
Preserve citations and cross-references throughout generated responses

The module shall not present an unsupported legal conclusion as established law.

The module shall identify when available information is insufficient to support a reliable analysis.

Copyright Law Module

The Copyright Law Module provides the primary legal-domain knowledge for LexChangeFeed.

The module shall support analysis of:

Copyright ownership
Authorship
Originality
Copyrightable subject matter
Exclusive rights
Reproduction
Distribution
Public performance
Public display
Digital transmissions
Derivative works
Compilations
Collective works
Fair use
Licensing
Assignments
Transfers
Work made for hire
Joint authorship
Copyright registration
Copyright notice
Copyright infringement
Secondary liability
Digital Millennium Copyright Act issues
Online publication
Digital content
User-generated content
Software
Websites
Photography
Visual art
Music
Video
Film
Written works
Educational materials
AI-assisted works
AI-generated works
AI training and copyright issues
Public domain
Copyright duration
Statutory damages
Injunctive remedies
Copyright enforcement

The module shall be extensible so additional copyright subject areas can be added without modifying unrelated core modules.

Federal Law Module

The Federal Law Module shall provide the primary federal copyright-law framework.

The module shall support:

U.S. Copyright Act analysis
Title 17 analysis
Relevant federal regulations
Federal statutory amendments
Federal effective dates
Federal legislative changes
Federal legal history
Federal judicial decisions
Federal administrative guidance
Federal legal terminology
Federal legal relationships

The module shall maintain historical versions of applicable federal law so that the system can determine which legal framework was in effect at a particular point in time.

State Law Module

The State Law Module shall provide state-specific legal coverage where state law is relevant to a copyright-related analysis.

The module shall support:

State identification
State statutory sources
State legal changes
State effective dates
State legal history
State copyright-adjacent laws
State intellectual-property provisions
State enforcement considerations
State-specific legal overlays
State-specific source references

The system shall not assume that every copyright question is governed by a state copyright statute.

Where federal law controls an issue, the system shall identify the federal framework and explain any relevant state-law considerations separately.

Jurisdiction Engine Module

The Jurisdiction Engine determines which jurisdictions and legal authorities may be relevant to an analysis.

The module shall consider:

User-provided location
State
Country
Province
Territory
Publication location
Relevant parties
Applicable legal framework
Location of relevant conduct
Location of enforcement
Cross-border activity
Content type
Publication context
Commercial context
Educational context
Other facts relevant to jurisdiction

The module shall support multiple simultaneous jurisdictions.

The module shall identify potential jurisdictional conflicts.

The module shall explain why a particular jurisdiction or authority is considered relevant.

The module shall not infer jurisdiction solely from a user’s location when the facts indicate that another jurisdiction may be legally relevant.

Legal Knowledge Base Module

The Legal Knowledge Base stores structured legal information used by LexChangeFeed.

The module shall support:

Statutes
Regulations
Court opinions
Administrative materials
Government guidance
Legal doctrines
Legal definitions
Case metadata
Citation metadata
Jurisdiction metadata
Effective dates
Publication dates
Legal status
Historical versions
Source provenance
Relationships between authorities

The knowledge base shall support both direct retrieval and semantic discovery.

Each legal authority shall maintain sufficient metadata to establish its jurisdiction, authority type, publication information, temporal status, and source provenance.

Legal Knowledge Graph Module

The Legal Knowledge Graph connects related legal authorities and concepts.

The module shall model relationships including:

Statute to statute
Statute to regulation
Statute to case
Case to case
Case to doctrine
Case to statute
Case to jurisdiction
Case to subsequent treatment
Case to overruling authority
Case to distinguishing authority
Case to affirming authority
Case to reversing authority
Amendment to prior law
Replacement of prior law
Legal concept to legal authority
Publication to applicable legal authority
Legal change to affected publication

The graph shall support traversal, relationship discovery, precedent analysis, and legal change analysis.

Case Law Intelligence Module

The Case Law Intelligence Module provides structured analysis of judicial decisions.

The module shall support:

Case discovery
Case identification
Case citation normalization
Court identification
Decision date
Jurisdiction
Procedural history
Relevant facts
Issues presented
Holdings
Reasoning
Majority opinions
Concurring opinions
Dissenting opinions
Precedential status
Subsequent treatment
Affirmance
Reversal
Distinguishing
Overruling
Circuit conflicts
Related cases
Related statutes
Related doctrines

The module shall distinguish between the holding of a case and broader commentary or interpretation.

Legal Citation Module

The Legal Citation Module ensures that legal claims can be traced to supporting authorities.

The module shall:

Generate legal citations
Normalize citations
Validate citation references
Preserve source links
Identify primary authorities
Identify secondary authorities
Cross-reference related authorities
Detect missing citations
Detect unsupported legal claims
Track citation provenance
Track citation versions
Associate citations with specific legal statements where possible

Legal responses shall prioritize authoritative primary sources.

Source Verification Module

The Source Verification Module evaluates the reliability and status of legal sources.

The module shall track:

Source identity
Source type
Source jurisdiction
Publication date
Effective date
Retrieval date
Source status
Source provenance
Source version
Source relationships
Source authority level

The module shall detect:

Duplicate sources
Outdated sources
Superseded sources
Broken source references
Missing source metadata
Conflicting source records

The system shall identify when a source has been superseded, amended, reversed, or otherwise affected by later authority.

Legal Change Ingestion Module

The Legal Change Ingestion Module continuously identifies new legal developments.

The module shall support ingestion of:

Federal legislation
Federal statutory amendments
Federal regulations
Federal Register materials
Supreme Court decisions
Federal appellate decisions
Federal district court decisions
State legislation
State statutory amendments
State court decisions where relevant
Copyright Office materials
Government legal guidance
International legal developments when international modules are enabled

The ingestion process shall:

Detect new material
Retrieve source material
Parse source material
Classify the material
Identify jurisdiction
Identify legal subject
Extract relevant metadata
Detect amendments
Detect changes
Establish effective dates
Establish legal status
Create source relationships
Update the legal knowledge base
Update the legal knowledge graph
Trigger downstream impact analysis

Legal Change Analysis Module

The Legal Change Analysis Module determines what has changed and how the change relates to existing legal information.

The module shall:

Compare previous and current legal versions
Identify amended language
Identify repealed provisions
Identify newly enacted provisions
Identify new judicial interpretations
Identify changed precedent
Detect potential precedent conflicts
Identify changes in legal applicability
Identify effective dates
Identify pending changes
Identify delayed effective dates
Generate change summaries
Identify affected legal concepts

The module shall preserve both the previous and updated legal state.

Legal Timeline Module

The Legal Timeline Module reconstructs legal development over time.

The module shall support:

Statutory timelines
Case-law timelines
Amendment timelines
Precedent evolution
Effective-date timelines
Publication timelines
Legal change histories
Historical jurisdiction snapshots
Law-at-time-of-publication analysis
Law-at-time-of-use analysis

Users shall be able to determine how relevant legal authorities changed over a defined period.

Publication Registry Module

The Publication Registry allows users to register works for ongoing legal monitoring.

A publication record may include:

Title
Description
Content type
Creation date
Publication date
Revision date
Publication location
Jurisdiction
Intended markets
Intended audience
Usage context
Relevant third-party content
Licensing information
Content fingerprint
Content hash
Legal snapshot
Applicable legal authorities
Monitoring preferences

The system shall allow users to register multiple works.

The system shall maintain historical publication versions where enabled.

Publication Analysis Module

The Publication Analysis Module evaluates registered works against relevant copyright-law concepts.

The module shall support:

Copyright issue spotting
Ownership analysis
Authorship analysis
Fair-use issue spotting
Derivative-work analysis
Licensing issue spotting
Third-party-content analysis
Publication-context analysis
Commercial-use analysis
Educational-use analysis
Transformative-use analysis
Public-domain analysis
Jurisdiction-specific analysis
Relevant-case discovery
Relevant-statute discovery

The module shall identify potential legal considerations rather than declaring that a user has or has not violated the law.

Conflict Detection Module

The Conflict Detection Module evaluates whether a legal development may affect a registered publication.

The module shall compare:

Publication characteristics
Applicable jurisdictions
Existing legal snapshot
Current legal snapshot
New statutes
Amendments
Judicial decisions
Changed interpretations
Relevant legal doctrines
Relevant precedents

The module shall identify:

No apparent impact
Informational change
Potentially relevant change
Minor interpretive shift
Moderate relevance shift
High relevance shift
Critical review recommended

The module shall explain the basis for an identified potential conflict.

Legal Impact Assessment Module

The Legal Impact Assessment Module provides structured analysis of detected changes.

Each assessment may include:

Legal change
Affected jurisdiction
Effective date
Affected publication
Relevant legal issue
Previous legal state
Current legal state
Supporting authorities
Related cases
Impact classification
Confidence level
Uncertainty
Explanation
Suggested review action

Impact assessments shall not be represented as guaranteed predictions of legal outcomes.

Notification Module

The Notification Module alerts users when relevant legal developments are identified.

The module shall support:

Publication-specific alerts
Jurisdiction-specific alerts
Legal-topic alerts
Statute alerts
Case alerts
Effective-date reminders
New-law notifications
Precedent-change notifications
Potential-conflict notifications
Periodic legal digests
High-priority alerts
Informational updates

Notifications shall include:

What changed
Where the change applies
When the change takes effect
Which publication may be affected
Why the change was detected as relevant
Impact classification
Supporting sources
Related authorities
Recommended review considerations

Users shall be able to configure notification preferences.

Legal Monitoring Module

The Legal Monitoring Module manages continuous monitoring subscriptions.

Users shall be able to monitor:

Individual publications
Categories of publications
Jurisdictions
Legal subjects
Statutes
Cases
Legal doctrines
Legislative activity
Judicial activity
Regulatory activity

Monitoring subscriptions shall be independently configurable.

Research Workspace Module

The Research Workspace provides persistent legal research capabilities.

The module shall support:

Saved cases
Saved statutes
Saved authorities
Saved searches
Research collections
Legal notes
Cross-references
Legal timelines
Publication associations
Research history
Citation collections
Comparative analysis

Search Module

The Search Module shall provide multiple methods of legal information discovery.

The module shall support:

Full-text search
Semantic search
Citation search
Case-name search
Statute search
Jurisdiction filtering
Court filtering
Date filtering
Legal-topic filtering
Authority-type filtering
Precedent-status filtering
Effective-date filtering
Advanced query combinations

Search results shall identify source authority and jurisdiction.

Cross-Reference Module

The Cross-Reference Module connects legal information across sources.

The module shall identify:

Related statutes
Related regulations
Related cases
Related doctrines
Related amendments
Subsequent decisions
Conflicting authorities
Supporting authorities
Historical authorities
Jurisdictional equivalents

Cross-references shall be available both within research results and AI-generated responses.

Provenance Module

The Provenance Module records the origin and history of information used by LexChangeFeed.

The module shall track:

Original source
Source URL
Source type
Retrieval date
Source version
Processing history
Legal classification
AI analysis history
Publication analysis history
Notification generation history
Human review
Corrections
Updates

The system shall preserve sufficient provenance to allow users to understand where an analysis originated.

Audit Module

The Audit Module records significant system activity.

The module shall support auditing of:

Legal-data ingestion
Legal-data updates
Source verification
Legal version changes
AI analysis
Publication analysis
Conflict detection
Notification generation
Human review
Corrections
User configuration changes

Audit records shall be designed to support transparency and reproducibility.

Human Review Module

The Human Review Module provides mechanisms for reviewing uncertain or significant system results.

The module shall support:

Flagging uncertain analysis
Reviewing source classifications
Reviewing citations
Reviewing legal changes
Reviewing conflict assessments
Correcting metadata
Correcting jurisdiction assignments
Reviewing false positives
Reporting false negatives
Adding expert annotations
Recording review outcomes

Human review shall be capable of overriding automated classifications where appropriate while preserving an audit trail.

Legal Reliability Module

The Legal Reliability Module provides safeguards against unsupported or outdated legal analysis.

The module shall detect:

Unsupported legal claims
Missing citations
Outdated authorities
Jurisdiction mismatches
Conflicting authorities
Superseded law
Reversed precedent
Incomplete source information
Ambiguous legal questions
Insufficient factual context

The system shall communicate uncertainty when the available evidence does not support a strong conclusion.

Disclaimer and Boundary Module

The Disclaimer and Boundary Module ensures that LexChangeFeed remains an informational legal intelligence system.

The system shall:

State that it does not provide legal advice
Avoid representing AI analysis as attorney-client advice
Avoid guaranteeing legal compliance
Avoid declaring definitive infringement
Avoid guaranteeing that a work is legally protected
Identify material uncertainty
Recommend professional legal review where appropriate
Distinguish legal information from professional legal advice

Data Privacy Module

The Data Privacy Module shall protect user publications and associated information.

The module shall support:

User-controlled publication data
Access controls
Publication visibility controls
Data retention controls
Deletion controls
Private research collections
Secure handling of sensitive publication metadata
Separation of public legal sources from private user information

The system shall not require users to make private works publicly available merely to use publication monitoring features.

Access Control Module

The Access Control Module shall manage permissions for:

Users
Organizations
Administrators
Researchers
Reviewers
Contributors
Optional legal reviewers

Permissions shall be configurable by installation and deployment.

International Jurisdiction Plugin Module

International legal support shall be implemented through optional jurisdiction plugins.

Plugins may provide:

Country-specific copyright law
Province-specific copyright law
Territory-specific copyright law
Local court decisions
Local regulations
Local government guidance
Local legal terminology
Local legal citations
Local effective dates
Local legal-change monitoring

International plugins shall follow the same source, provenance, versioning, and citation requirements as the core U.S. system.

Canadian Copyright Plugin

An optional Canadian module may provide:

Canadian Copyright Act coverage
Federal Canadian case law
Provincial considerations where relevant
Canadian legal terminology
Canadian legal citations
Canadian legal updates
Fair-dealing analysis
Cross-border comparisons with U.S. law

European Copyright Plugin

An optional European module may provide:

Applicable European copyright frameworks
EU copyright directives
Member-state legal modules
European case law
European legal updates
Jurisdiction-specific implementation
Cross-border comparisons
Comparison with U.S. copyright doctrines

United Kingdom Copyright Plugin

An optional United Kingdom module may provide:

UK copyright law
Copyright, Designs and Patents Act coverage
UK case law
UK legal updates
UK legal terminology
Fair-dealing analysis
Cross-jurisdiction comparisons

International Treaty Plugin

An optional international treaty module may provide coverage of relevant international frameworks, including:

Berne Convention
TRIPS
WIPO copyright frameworks
International copyright agreements
Treaty updates
Treaty relationships to national law

Additional Legal Domain Plugin Framework

LexChangeFeed shall support optional expansion beyond copyright law.

Potential plugins may include:

Trademark law
Patent law
Trade-secret law
Right-of-publicity law
Privacy law
Licensing law
Contract law
Digital-media law
Artificial-intelligence law
Intellectual-property law generally

Additional legal domains shall remain modular and shall not compromise the specialized behavior of the copyright-law core.

Source Connector Plugin Framework

Optional source connectors may provide access to additional authoritative legal repositories.

Each connector shall support:

Source identification
Source authentication where required
Document retrieval
Metadata extraction
Version identification
Source provenance
Error reporting
Update detection
Source validation

Connectors shall not be treated as authoritative solely because they are technically available. Source authority shall be evaluated independently.

Notification Provider Plugin Framework

Optional notification providers may support:

Email
Web notifications
Mobile notifications
Messaging services
Webhooks
Organization-specific notification systems
Scheduled digests

Notification providers shall receive only the information necessary to deliver the configured notification.

AI Provider Plugin Framework

The AI reasoning layer shall support interchangeable AI providers.

The system shall separate:

Legal data
Retrieval
Legal reasoning
Model provider
Citation verification
User interface

Changing an AI provider shall not require rewriting the legal knowledge base or jurisdiction engine.

Publication Monitoring Plugin Framework

Optional monitoring plugins may provide specialized analysis for:

Books
Articles
Websites
Software
Music
Video
Photography
Visual art
Podcasts
Courses
Educational materials
AI-generated works
Multimedia publications

Each plugin shall contribute domain-specific analysis without replacing the core legal reasoning and jurisdiction systems.

Legal Change Feed

The primary LexChangeFeed interface shall provide a continuously updated stream of legal developments.

Each feed item may contain:

Legal event
Event type
Jurisdiction
Authority
Date
Effective date
Legal subject
Change summary
Previous legal state
Current legal state
Related authorities
Potentially affected publications
Impact classification
Source references

Users shall be able to filter the feed by jurisdiction, subject, authority, date, and relevance.

Legal Alert Lifecycle

A legal alert shall follow a defined lifecycle:

Legal development detected
Source verified
Legal change classified
Jurisdiction determined
Relevant legal concepts identified
Potentially affected publications identified
Impact assessed
Alert generated
User notified
User reviews alert
Alert acknowledged
Review outcome recorded
Future legal changes continue to be monitored

Publication Legal Snapshot

Each monitored publication shall have a legal snapshot representing the legal information used during an analysis.

The snapshot may include:

Applicable jurisdictions
Applicable statutes
Relevant regulations
Relevant cases
Relevant doctrines
Source versions
Effective dates
Analysis date
Legal-change history

When relevant law changes, the system shall be capable of comparing the prior snapshot with the current legal state.

Legal Change Impact Workflow

When a new legal development is identified, LexChangeFeed shall:

Verify the source
Determine legal authority
Determine jurisdiction
Determine effective date
Classify the change
Identify affected legal concepts
Identify related precedent
Compare previous and current legal states
Identify potentially affected publications
Assess relevance
Generate an impact record
Generate a notification when configured criteria are met
Preserve the analysis and source provenance

AI Response Requirements

AI-generated legal responses shall:

Identify applicable jurisdiction
Use current available legal information
Prefer primary sources
Provide citations
Provide cross-references
Identify relevant cases
Identify relevant statutes
Distinguish law from interpretation
Identify conflicting authority
Identify uncertainty
Avoid unsupported assertions
Avoid fabricated citations
Avoid claiming certainty where the law is unsettled
Recommend professional legal review when appropriate

Legal Update Requirements

The system shall treat legal information as time-sensitive.

Every relevant legal record should maintain:

Source date
Publication date
Effective date where applicable
Retrieval date
Current status
Historical status
Version information
Subsequent legal treatment

The system shall prioritize current applicable law while retaining historical information for temporal analysis.

Error Handling

The system shall identify and report:

Failed source retrieval
Invalid source data
Missing metadata
Conflicting legal records
Unverified legal changes
Failed parsing
Failed classification
Missing jurisdiction
Ambiguous jurisdiction
Unsupported legal claims
Citation failures
Outdated sources
Incomplete analysis

A failed ingestion shall not silently overwrite a verified legal record.

Extensibility Requirements

New modules and plugins shall:

Have defined interfaces
Maintain separation of concerns
Preserve source provenance
Preserve citation requirements
Support jurisdiction metadata where applicable
Support legal versioning where applicable
Avoid unnecessary dependencies on unrelated modules
Remain independently testable
Preserve existing legal records
Preserve attribution requirements
Comply with AGPL-3.0+

Testing and Validation

The system shall provide validation for:

Legal source ingestion
Citation accuracy
Citation completeness
Jurisdiction resolution
Legal versioning
Case relationships
Statutory relationships
Legal change detection
Conflict detection
Notification generation
Publication analysis
Source provenance
AI response grounding
Outdated-law detection
Conflicting-authority detection

Legal data changes should be independently validated before being treated as authoritative system updates.

Transparency Requirements

LexChangeFeed shall make it possible for users to understand:

What legal authority was used
Where the authority originated
Which jurisdiction applies
When the source was published
When the law became effective
Whether the authority remains current
Why a publication was identified as potentially affected
What legal change triggered an alert
Which cases or statutes support the analysis
What uncertainty remains

Specification Branding License (SBL)

Standard

Fully AGPL-3.0+ compliant system
Copyleft enforced for network deployments
Required attribution:
- Roxanne Ardary
- https://www.roxanneardary.com/

Optional

Specification Branding License (SBL)
- Attribution-free commercial deployment
- Pricing based on scale, usage, and deployment scope
- https://roxanneardary.com/lexchangefeed/

License & Notice Requirements

LexChangeFeed is released under the GNU Affero General Public License v3.0 or later (AGPL-3.0+).

By contributing to this project, you agree that your contributions will also be released under this license.

Please note the following:

All contributions must comply with the AGPL-3.0+ terms.
Under Section 7 of the license, all redistributions, forks, and derivative works must preserve attribution to: Roxanne Ardary and roxanneardary.com.
LexChangeFeed specifications are free to use with attribution. A Specification Branding License can be negotiated upon request.
The project’s notice.md file tracks attribution requirements and contributor acknowledgments. Any update that adds new contributors or modifies attribution should also update notice.md.
When submitting a pull request, ensure that any new files maintain the attribution headers where applicable.
Network-deployed versions of this software must also remain fully AGPL-3.0+ compliant, including exposure of source code modifications when applicable under the license.

For full legal details, please refer to the AGPL-3.0+ license and the project’s notice.md file.

Notice – LexChangeFeed

Attribution Requirement: Under Section 7 of the AGPL 3.0+ license, all redistributions, forks, and derivative works, including network-deployed versions of this project, must provide attribution to Roxanne Ardary and roxanneardary.com.

Contributors

This file tracks contributors and their specific contributions to the project.

Roxanne Ardary, roxanneardary.com – May 6, 2026
Created the repository for LexChangeFeed. Designed the core system architecture for a modular legal intelligence infrastructure that monitors evolving copyright law, supports jurisdiction-aware analysis, and includes a legal change notification system.
[Add other contributors here] – [Date]
[Describe contribution in one sentence]

License – LexChangeFeed

This repository is licensed under the GNU Affero General Public License v3.0 or later (AGPL-3.0+).

Key Points

You are free to use, modify, and distribute the code.
All redistributions, forks, and derivative works or network-deployed versions must also be licensed under AGPL-3.0+ and provide attribution to Roxanne Ardary and roxanneardary.com as required under Section 7 of the license.
The software is provided “as is,” without warranty of any kind.

For the full license text, see GNU AGPL-3.0 License.