The government agency reported $73.1 billion in revenue from postage and other services in the 2020 fiscal year. The United States Postal Service will soon be stepping into the nonfungible token market. Not to release artwork or music, but rather to help customers purchase postage.In an announcement on Tuesday, communications-as-a-service platform CaseMail said the USPS had certified its postage nonfungible tokens, or NFTs, for use in the United States. The tokens are digitally stamped on the USPS\u2019 ePostage labels and the physical item being mailed, creating a verifiable chain of custody for digital and physical assets, as all data is recorded on the blockchain."Using NFTs to help protect a process that's both familiar and important to everyone \u2014 mailing a letter or package \u2014 helps demystify this important new technology,\u201d said CaseMail founder and CEO Joe Ruiz. \u201cIt is simply postage printed from the blockchain."The company will first offer the postage tokens \u201cexclusively for legal professionals and government agencies,\u201d with a rollout planned for the second quarter to include partnerships with providers of consumer and business services. The government agency reported $73.1 billion in revenue from postage and other services in fiscal year 2020, meaning digital postage stamps could be tapping into a large market. CaseMail\u2019s use case for NFTs is part of a seemingly larger trend for companies to incorporate real-world data on tokens. This year, individuals and technology firms have used NFTs to\u00a0geotag street art\u00a0and develop a device capable of recording and encrypting temperature, air quality and other data to tokens in a proof-of-presence verification.