We just introduced a new meta field to records which represents the first time a record gets published: perfect to use in blogs as the publication date of an article, for example.
You can fetch, filter and order records using _firstPublishedAt on our GraphQL Content Delivery API:
{allBlogPosts(orderBy: [_firstPublishedAt_DESC]) {titleslugauthor { name }_firstPublishedAt}}
The meta field is also present in our CMA, and in the administrative interface:
