in june 2021 when the cryptocurrency markets were soaring the developers of the arte condominium in miami’s surfside neighborhood announced that a buyer had purchased a penthouse there for 225 million in cryptocurrency the deal one of the most expensive ever done using digital coins was heralded as evidence that cryptocurrency would eventually become commonplace in the realestate world now with the crypto markets crashing back to earth after the implosion of the cryptocurrency exchange ftx that same buyer has resold at a loss for 18 million the deal closed for cash this time said danny hertzberg of coldwell banker realty one of the listing agents the unit was listed for 28 million in september 2021 and its price was lowered several times it was most recently asking 199 million records show the seller was a company named chain inc on its website chain inc described itself as a blockchainbased technology company founded in 2014 with a mission to enable a smarter and more connected economy it wasn’t clear if the unit was owned by the company or one of its executives the company’s chief executive deepak thapliyal couldn’t immediately be reached for comment the identity of the buyer couldn’t be determined an expanded version of this story appears on wsjcom   the end of netflix password sharing is nigh   trump reported little or no incometax liability for several years records show