Legal and policy information
Copyright and Intellectual Property
Copyright ownership, reporting, and intellectual-property contact information.
Application materials
Original code, interface text, graphics, documentation, and branding remain protected unless a third-party notice states otherwise.
Classroom documents
Uploaded PDFs remain the responsibility of the uploader or rights holder.
Reporting concerns
Identify the work, location, ownership basis, and requested action when reporting a concern.
Last reviewed: 2026-07-25