UNITED STATES POSTAL SERVICE ELECTRONIC POSTMARK

APPLYING ELECTRONIC DATE AND TIME STAMP AND DIGITAL SIGNATURE TO ELECTRONIC DOCUMENTS AND TRANSACTIONS TO VERIFY THAT DOCUMENTS AND TRANSACTIONS HAVE NOT BEEN ALTERED; VERIFYING THAT A DIGITAL DOCUMENT HAS NOT BEEN ALTERED SINCE A CERTAIN TIME AND DATE, STATING WHAT THAT DATE AND TIME IS, AND APPLYING A DIGITAL SIGNATURE TO DIGITAL DOCUMENTS