Looks like it. Like I said, I'm completely out of my wheelhouse on this. I'll try and contact Ghost directly and see if they have a solution I'm not seeing.

"To import a valid post with content, published at a specific time, the bare minimum fields to provide are title, mobiledoc, status and published"

{

"title": "my blog post title",

"mobiledoc": "{\"version\":\"0.3.1\",\"atoms\":[],\"cards\":[],\"markups\":[],\"sections\":[[1,\"p\",[[0,[],0,\"You're live, nice!\"]]]]}",

"status": "published",

"published_at": 1283780649000

}