I wish markdown had something to embed ‘invisible’ metadata.
How about Open Graph Protocol?
- It’s “invisible”. Its just an HTML tag which will be invisible in Preview mode.
- It’s already an established standard with documentation.
- Fairly simple to write, read, and edit.
- It’s widely used across the internet (which means we may even be able to automatically import metadata by simply pasting in a URL into Obsidian): Automatically fetch and import metadata using Open Graph Protocol -> YAML Metadata