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TechFlow news, September 16 — According to Cointelegraph, American Express has launched a passport stamp service based on the Base blockchain. The service allows cardholders to digitally collect and share travel memories in the form of customizable NFT stamps.
According to Cointelegraph, American Express has launched a passport stamp service based on the Base blockchain. The service allows cardholders to digitally collect and share travel memories in the form of customizable NFT stamps.
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