Sony unveils patent for tracking NFTs in video games. Sony Interactive Entertainment, the multinational video game company responsible for the PlayStation brand, has revealed patents related to NFT and blockchain technology. The patent (filed last year) is about tracking digital assets generated in video games. The patent application, titled "Tracking unique in-game digital assets using tokens on a distributed ledger," describes how blockchain technology can be used to track the history of a unique in-game item, including who created it and who owns it. It was before, and if it was modified along the way. The Japanese conglomerate highlighted the global popularity of gaming and gamers who want to own unique items related to their favorite celebrities, events and esports tournament winners