...e.g. on the liabilities side of the Statement of Affairs (Insolvency Balance Sheet) and that also includes the assets - a point made before on a previous ProZ question.


This is one way of expressing the idea.

File a claim or a petition
https://www.gov.uk/register-creditor-bankruptcy
http://www.uscourts.gov/services-forms/bankruptcy/bankruptcy...
Obviously every country is different and has different laws and terminology. I have put "(England)" because Scotland is different.

In UK legal terminology, proof of debt is "submitted".
See: https://www.insolvencydirect.bis.gov.uk/technicalmanual/Ch13...
Where a company is being wound up by the court, or a bankruptcy order has been made, a person claiming to be a creditor and wishing to be repaid all or part of their debt must, subject to any order of the court [Note 1] [Note 2], submit his/her claim in writing to the liquidator, official receiver where acting as receiver and manager, or to the trustee [Note 3] [Note 4].

A person who lodges a claim is referred to as ‘proving’ for his/her debt and the document by which he/she seeks to establish his/her claim is his/her ‘proof’ [Note 5] [Note 6].