The web3 gaming grail has always been interoperability of in-game assets, and a recent patent application by Sony seems to suggest they're preparing to crack the code–at least for their own gaming universe. Their patent application (entitled “Tracking Unique In-Game Digital Assets Using Tokens on a Distributed Ledger”) makes it clear they have been researching how to track and use digital assets across platforms, and that it is their intention to implement it in the Playstation universe. Though they have not announced what blockchain they plan to use, conversations on LinkedIn and other social media suggest that they gave up on the idea of building their own blockchain (too costly and risky) and could develop on Ethereum (or Polygon, like everyone else).
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