This image created by Brazilian illustrator Andre Maciel, known as Black Madre, provided by Leighton Communications, Inc., shows a copy of one of the nine non-fungible token cards of baseball Hall of Famer Ted Williams to go on auction April 19-24, 2021. Non-fungible tokens can be works of art, video clips or even tweets or news articles tied to a digital record  or blockchain  that allows the collector to prove ownership. (Leighton Communications, Inc. via AP)
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