To embed, copy and paste the code into your website or blog: A proof of claim is a written statement setting out a creditor's claim and asserting its right to receive a distribution from the bankruptcy estate. It must "conform substantially" to Official Bankruptcy Form B410 (Fed. R. Bankr. P. 3001(a)). The purpose of a proof of claim is to give notice of the claim to the court, the debtor, the trustee, and other creditors. A properly prepared proof of claim is The Proof of Claim Form (Official Bankruptcy Form B410) and the Mortgage Proof of Claim Attachment (Official Bankruptcy Form B410A) are the official forms on which creditors' proofs of claims should be completed and filed. The information below does not account for all the possible permutations of claims nor the circumstances creditors should detail in their proofs of claim. Also, it does not address processes that may be specific to particular bankruptcy jurisdictions. For information on these requirements, see Practice Note, Filing a Proof of Claim in a Chapter 11 Bankruptcy Case: Box, Local Bankruptcy Rules: Proofs of Claims and Objections to Claims.