JSONField() ordering and removing latest

Hello together,

i have the following problem. I need to save different versions of an article in a json object:

{

"1580388458.2877874": {

"title": "Erster Artikel", 

"text_block_with_image": [{"text": "Super Text der einen weiterhilft", "image": "http://test.de/test.jpg"}]

}, 

"1580388556.6462297": {

"title": "Erster Artikel angepasst", 

"text_block_with_image": [{"text": "Super neuer neuer Text der einen weiterhilft", "image": "http://test.de/test.jpg"}]

}

}

I save this information in a JSONField().

The numbers here are the current time in seconds. 

I want to do an article template where i show the latest version of the article (by current time seconds).

How can i filter after the latest version?

Articles.objects.filter( ?? )

My second problem:

How can i delete the oldest version (key), when i add a new entry?

Thank you!

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