Proposed data format

sample.json

{
	"version": 1,
	"metadata": {
		"lastUpdated": "2021-09-13T08:41:16+0000",
		"message": "Projektdaten Bahnhof Lausanne. Bei Fragen Mathias Kuhn kontaktieren."
	},
	"data": {
		"documents": [
			{
				"number": "GC.GA.00.COF.DT.0001",
				"version": "1",
				"group": "This is optional"
			},
			{
				"number": "GC.GA.00.COF.DT.0002",
				"version": "2",
				"group": "This is optional"
			}
		]
	}
}