Is the made up to date in the filing stream always present/reliable for confirmation statements?

Hi,

Is the made up to date a reliable data field for confirmation statements, within the filing stream?
This field isn’t detailed in the documentation/schema.

“data”: {
“barcode”: “XXXXXXXXX”,
“category”: “confirmation-statement”,
“date”: “2025-04-23”,
“description”: “confirmation-statement-with-updates”,
“description_values”: {
“made_up_date”: “2025-04-16”
},