Add a list of hidden notes

[qugebert]

Good day. I was referred from my original issue to this repository.

Background: Notes can be reported via the web interface, for example, if they contain personal data or are offensive. After review by the moderators (DWG?), they are then hidden.
However, there are also other websites that display these notes and have already saved them in their databases at the time of moderation, so notes moderated by the DWG currently continue to be displayed on these websites.
Since these notes are hidden not without reason and only after careful review, an accessible way should be created for external projects to also hide these notes. What is the point of deleting personal data or insults on the main site if they are still mirrored by numerous external projects?
The assumption that all these external projects always work with a clean dump and that the moderated notes will disappear at the latest after 24 hours seems naive to me. I rather think that this can vary depending on the architecture of the project.
So at least a dayly dump of the ids of notes, that should be hidden by other projects would help.