Русско-англо-русский юридический словарь

An insolvent estate is an estate in bankruptcy. When the owner of the estate passed,they left behind a greater amount of debt than equity. This means the estate must be sold off in order to repay debts, but there may still be outstanding debts to pay. Depending on the structure of the debts, the inheritors of the estate may be asked to repay the loans. (FinancialWeb)

Proving is the process by which a creditor seeks to establish its claim against the insolvent estate. A proof of debt is the document on which a creditor submits details of its claim. (Practical Law)