Rhode Island Certification of Supplemental Proof of Claim Documents is a form used in Rhode Island bankruptcy cases to provide additional information in support of a claim that the debtor has made. This form is used to support the accuracy of the claim and to provide the necessary documentation to establish the claim in a court of law. There are two types of Rhode Island Certification of Supplemental Proof of Claim Documents. The first type is the Certification and Verification of Supplemental Proof of Claim, which is used when a creditor is filing an original claim. This document requires the creditor to certify, under penalty of perjury, that the information provided in the claim is accurate and true. The second type is the Certification and Verification of Supplemental Proof of Claim Amendment, which is used when a creditor is amending a previously filed claim. This document requires the creditor to certify, under penalty of perjury, that the information provided in the amended claim is accurate and true.