As Donald Trump and his family stretch into nearly every corner of the cryptocurrency sector, a dispute has broken out over which corporate entities are permitted to wield the Trump brand to promote the crypto products they launch.

On Tuesday, the X account for the US president’s Trump memecoin—which is administered by Fight Fight Fight LLC, formed by longtime Trump ally Bill Zanker—announced plans to launch a crypto wallet and trading platform in partnership with NFT marketplace Magic Eden. The corresponding website, first identified by independent crypto researcher Molly White, pitches the product as “the official $TRUMP wallet by President Trump.”

However, in X posts of their own, Eric and Donald Trump Jr. later repudiated…