Use platform ids
OPF stores stable lowercase keys such as linkedin and github, not display names that can drift across rebrands.
Socials
Where Your Audience Lives
Socials is an OPF reference dimension for platform ids and handles. Use keys such as linkedin, x, or github in Organization.socials or Speaker.socials so renderers can resolve the right glyph, brand color, and URL.
Social Platform Records
Social Metadata Rules
Keep handles selective
One to three social handles in a footer is usually enough. More turns metadata into visual noise.
Let the catalog resolve
Renderers use the platform record for the URL pattern, handle prefix, brand color, and icon treatment.