Odaily News Christie's will provide blockchain-based digital certificates of ownership for each lot at the "Focus on Reality: Photographs from the Collection of Ambassador Trevor Trainor" auction held at Rockefeller Center in New York. The auction involves 130 works, and the ownership certificates will be minted by Kresus on the Ethereum second-layer blockchain Base developed by Coinbase. Christie's has been involved in blockchain technology as early as 2021, when it auctioned Beeple's "Everyday" series for $69 million. (Coindesk)