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’ 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.
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Source: Cryptocurrency - investing.com
