In the US a mortgage note is a promissory note associated with a specified mortgage loan; it is a written promise to repay a specified sum of money plus interest at a specified rate and length of time to fulfill the promise. While the mortgage itself pledges the title to real property as security for a loan, the mortgage note states the amount of debt and the rate of interest, and obligates the borrower, who signs the note, personally responsible for repayment. In foreclosure proceedings in certain jurisdictions, borrowers may require the foreclosing party to produce the note as evidence that they are the true owners of the debt.