Ethereum price is at an all-time high. Move over, bitcoin.

But Ethereum has enjoyed an even bigger surge than bitcoin because it is the cryptocurrency of choice for the purchases of many non-fungible tokens, or NFTs — which have taken the art and broader collectibles world by storm.

One NFT piece by digital artist Beeple sold for nearly $70 million at a Christie’s auction earlier this year. Baseball trading card company Topps has gotten into the NFT game by selling virtual cards and is now going public through a merger with a blank check special purpose acquisition company, or SPAC.

NFTs often offer fans of an artist, celebrity or athlete unique video and other digital content. Super Bowl champion Tom Brady now has his own NFT company.

And two players selected in this week’s NFL Draft, Heisman Trophy winner DeVonta Smith and defensive end Kwity Paye, also launched NFTs. A portion of sales from Smith’s NFTs will go to charity, he said. Paye has said that all of his NFT sales are going to a non-profit organization.