Proof of debt affidavit establishes creditor claims in LLP winding-up and requires disclosure of securities and preference grounds. Affidavit of proof of debt in an LLP winding-up must state the creditor's indebtedness at the date of the winding-up order, describe any securities and their valuation, specify grounds for any preferential claim, and include a schedule detailing account dates, descriptions, amounts, due dates and contra account credits; an authorized deponent must state authority and means of knowledge.